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App Helps Hospitalists Prevent Inpatient Falls
Every year, hundreds of thousands of hospitalized patients fall. Now, hospitalists can get help in dramatically reducing those numbers. According to Erin DuPree, MD, FACOG, vice president and chief medical officer at The Joint Commission's Center for Transforming Healthcare, 30% to 50% of inpatients sustain an injury in a fall, incurring hospital costs of roughly $14,000 and adding, on average, 6.3 days to a hospital stay. It's an ongoing challenge.
"Hospitals have been working on preventing falls forever," Dr. DuPree says. "It's complex, and we needed to look at this in a data-driven way."
The center has done just that, and the result is a new web application called the Preventing Falls Targeted Solutions Tool. Anyone at a Joint Commission–accredited organization can gain complimentary access to the app, which guides users through a systematic, data-driven, Lean Six Sigma approach to reducing falls.
"It guides them through data collection and analyzes the data," Dr. DuPree adds. "Then the tool identifies your top contributing factors to falls and the solutions for those factors. We know every hospital has different contributing factors that matter; this is very local and dependent on the data that's entered."
Seven healthcare institutions in Missouri, Texas, Minnesota, California, North Carolina, and New Hampshire assisted the Joint Commission in developing the tool. Altogether, the pilot institutions reduced their rate of falls by an average of 35% and decreased their rate of patients injured in a fall by an average of 62%.
Hospitalists have a crucial role to play in bringing this process to their own workplace. "It's an opportunity for them to assert their leadership in their clinical role by collaborating with other disciplines on a big patient-safety issue," Dr. DuPree says.
It's also an opportunity for hospitalists to learn about quality improvement, she adds. "If they want to learn something about Lean Six Sigma," she says, "they can do a pilot project on their unit. I hope hospitalists gain access to the tool and start a falls project or work with their team to see what things in the tool could be of value to them."
Visit our website for more information on hospitalists and preventing inpatient falls.
Every year, hundreds of thousands of hospitalized patients fall. Now, hospitalists can get help in dramatically reducing those numbers. According to Erin DuPree, MD, FACOG, vice president and chief medical officer at The Joint Commission's Center for Transforming Healthcare, 30% to 50% of inpatients sustain an injury in a fall, incurring hospital costs of roughly $14,000 and adding, on average, 6.3 days to a hospital stay. It's an ongoing challenge.
"Hospitals have been working on preventing falls forever," Dr. DuPree says. "It's complex, and we needed to look at this in a data-driven way."
The center has done just that, and the result is a new web application called the Preventing Falls Targeted Solutions Tool. Anyone at a Joint Commission–accredited organization can gain complimentary access to the app, which guides users through a systematic, data-driven, Lean Six Sigma approach to reducing falls.
"It guides them through data collection and analyzes the data," Dr. DuPree adds. "Then the tool identifies your top contributing factors to falls and the solutions for those factors. We know every hospital has different contributing factors that matter; this is very local and dependent on the data that's entered."
Seven healthcare institutions in Missouri, Texas, Minnesota, California, North Carolina, and New Hampshire assisted the Joint Commission in developing the tool. Altogether, the pilot institutions reduced their rate of falls by an average of 35% and decreased their rate of patients injured in a fall by an average of 62%.
Hospitalists have a crucial role to play in bringing this process to their own workplace. "It's an opportunity for them to assert their leadership in their clinical role by collaborating with other disciplines on a big patient-safety issue," Dr. DuPree says.
It's also an opportunity for hospitalists to learn about quality improvement, she adds. "If they want to learn something about Lean Six Sigma," she says, "they can do a pilot project on their unit. I hope hospitalists gain access to the tool and start a falls project or work with their team to see what things in the tool could be of value to them."
Visit our website for more information on hospitalists and preventing inpatient falls.
Every year, hundreds of thousands of hospitalized patients fall. Now, hospitalists can get help in dramatically reducing those numbers. According to Erin DuPree, MD, FACOG, vice president and chief medical officer at The Joint Commission's Center for Transforming Healthcare, 30% to 50% of inpatients sustain an injury in a fall, incurring hospital costs of roughly $14,000 and adding, on average, 6.3 days to a hospital stay. It's an ongoing challenge.
"Hospitals have been working on preventing falls forever," Dr. DuPree says. "It's complex, and we needed to look at this in a data-driven way."
The center has done just that, and the result is a new web application called the Preventing Falls Targeted Solutions Tool. Anyone at a Joint Commission–accredited organization can gain complimentary access to the app, which guides users through a systematic, data-driven, Lean Six Sigma approach to reducing falls.
"It guides them through data collection and analyzes the data," Dr. DuPree adds. "Then the tool identifies your top contributing factors to falls and the solutions for those factors. We know every hospital has different contributing factors that matter; this is very local and dependent on the data that's entered."
Seven healthcare institutions in Missouri, Texas, Minnesota, California, North Carolina, and New Hampshire assisted the Joint Commission in developing the tool. Altogether, the pilot institutions reduced their rate of falls by an average of 35% and decreased their rate of patients injured in a fall by an average of 62%.
Hospitalists have a crucial role to play in bringing this process to their own workplace. "It's an opportunity for them to assert their leadership in their clinical role by collaborating with other disciplines on a big patient-safety issue," Dr. DuPree says.
It's also an opportunity for hospitalists to learn about quality improvement, she adds. "If they want to learn something about Lean Six Sigma," she says, "they can do a pilot project on their unit. I hope hospitalists gain access to the tool and start a falls project or work with their team to see what things in the tool could be of value to them."
Visit our website for more information on hospitalists and preventing inpatient falls.
David Henry's JCSO podcast, July 2015
In this month’s podcast for The Journal of Community and Supportive Oncology, Dr David Henry discusses a Community Translations article on lenvatinib, which was approved earlier this year for the treatment of patients with advanced differentiated thyroid cancer whose disease has progressed after radioactive iodine therapy. Also in the line-up are two Original Reports, one on health care expenditures associated with depression in adults with cancer and another on maximizing accessibility to and the efficacy of a weekly speech and language therapy service for patients with head and neck cancer who are receiving radiotherapy. A Case Report on a patient with inflammatory metastatic breast cancer with gallbladder metastases, a Feature article on new lung cancer treatments, and a summary of key findings from the 2015 annual meeting of the American Society of Clinical Oncology, round off the podcast.
In this month’s podcast for The Journal of Community and Supportive Oncology, Dr David Henry discusses a Community Translations article on lenvatinib, which was approved earlier this year for the treatment of patients with advanced differentiated thyroid cancer whose disease has progressed after radioactive iodine therapy. Also in the line-up are two Original Reports, one on health care expenditures associated with depression in adults with cancer and another on maximizing accessibility to and the efficacy of a weekly speech and language therapy service for patients with head and neck cancer who are receiving radiotherapy. A Case Report on a patient with inflammatory metastatic breast cancer with gallbladder metastases, a Feature article on new lung cancer treatments, and a summary of key findings from the 2015 annual meeting of the American Society of Clinical Oncology, round off the podcast.
In this month’s podcast for The Journal of Community and Supportive Oncology, Dr David Henry discusses a Community Translations article on lenvatinib, which was approved earlier this year for the treatment of patients with advanced differentiated thyroid cancer whose disease has progressed after radioactive iodine therapy. Also in the line-up are two Original Reports, one on health care expenditures associated with depression in adults with cancer and another on maximizing accessibility to and the efficacy of a weekly speech and language therapy service for patients with head and neck cancer who are receiving radiotherapy. A Case Report on a patient with inflammatory metastatic breast cancer with gallbladder metastases, a Feature article on new lung cancer treatments, and a summary of key findings from the 2015 annual meeting of the American Society of Clinical Oncology, round off the podcast.
Rise of the Chief Patient Experience Officer
The Cleveland Clinic was the first major academic medical center to make improving patient experience a strategic goal. In 2007, the medical institution hired its first chief patient experience officer (CXO) and established the Office of Patient Experience. These were also firsts.
“When we took a step back to evaluate why we come to work every day, we realized it’s for one reason—the patients,” says Adrienne Boissy, MD, MA, the clinic’s CXO. “Toby [Cosgrove, MD, president and CEO of Cleveland Clinic] had some key early experiences, which prompted us to think about patient experience as an organizational priority. These experiences led him to recognize the importance of caring for the soul of the patient, not just the body.
“The CXO was embedded into our executive team, which effectively wove it into our fabric.”
Since then, more than 60 other medical institutions across the country have followed suit.
But improving patient experience isn’t just “nice to do,” Dr. Boissy says. “The great part of these shifts in healthcare is that the government has created the burning platform for us. Organizations won’t survive in the current market if they don’t make it a strategic priority.”
So what are the key drivers of a positive patient experience?
“You cannot deliver an exceptional patient experience without safe care, high quality, or high value,” says Dr. Boissy, who adds that hospitalists shouldn’t underestimate their role in the patient’s experience.
“Hospitalists are leaders whether they have an official title or not,” she adds. “People watch how they behave and interact with patients and colleagues. Raising your own awareness about your ability to influence is key. Model the skills you hope to embed.”
The Cleveland Clinic was the first major academic medical center to make improving patient experience a strategic goal. In 2007, the medical institution hired its first chief patient experience officer (CXO) and established the Office of Patient Experience. These were also firsts.
“When we took a step back to evaluate why we come to work every day, we realized it’s for one reason—the patients,” says Adrienne Boissy, MD, MA, the clinic’s CXO. “Toby [Cosgrove, MD, president and CEO of Cleveland Clinic] had some key early experiences, which prompted us to think about patient experience as an organizational priority. These experiences led him to recognize the importance of caring for the soul of the patient, not just the body.
“The CXO was embedded into our executive team, which effectively wove it into our fabric.”
Since then, more than 60 other medical institutions across the country have followed suit.
But improving patient experience isn’t just “nice to do,” Dr. Boissy says. “The great part of these shifts in healthcare is that the government has created the burning platform for us. Organizations won’t survive in the current market if they don’t make it a strategic priority.”
So what are the key drivers of a positive patient experience?
“You cannot deliver an exceptional patient experience without safe care, high quality, or high value,” says Dr. Boissy, who adds that hospitalists shouldn’t underestimate their role in the patient’s experience.
“Hospitalists are leaders whether they have an official title or not,” she adds. “People watch how they behave and interact with patients and colleagues. Raising your own awareness about your ability to influence is key. Model the skills you hope to embed.”
The Cleveland Clinic was the first major academic medical center to make improving patient experience a strategic goal. In 2007, the medical institution hired its first chief patient experience officer (CXO) and established the Office of Patient Experience. These were also firsts.
“When we took a step back to evaluate why we come to work every day, we realized it’s for one reason—the patients,” says Adrienne Boissy, MD, MA, the clinic’s CXO. “Toby [Cosgrove, MD, president and CEO of Cleveland Clinic] had some key early experiences, which prompted us to think about patient experience as an organizational priority. These experiences led him to recognize the importance of caring for the soul of the patient, not just the body.
“The CXO was embedded into our executive team, which effectively wove it into our fabric.”
Since then, more than 60 other medical institutions across the country have followed suit.
But improving patient experience isn’t just “nice to do,” Dr. Boissy says. “The great part of these shifts in healthcare is that the government has created the burning platform for us. Organizations won’t survive in the current market if they don’t make it a strategic priority.”
So what are the key drivers of a positive patient experience?
“You cannot deliver an exceptional patient experience without safe care, high quality, or high value,” says Dr. Boissy, who adds that hospitalists shouldn’t underestimate their role in the patient’s experience.
“Hospitalists are leaders whether they have an official title or not,” she adds. “People watch how they behave and interact with patients and colleagues. Raising your own awareness about your ability to influence is key. Model the skills you hope to embed.”
Cognitive, Emotional Memory Disconnect Impacts Patient Satisfaction
There are two types of memory, the cognitive and the emotional, and the latter is more enduring. Maya Angelou characterized the distinction between these two types of memory most eloquently and succinctly when she said, “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” She was ahead of her time, because neurocognitive research has objectified with science what Ms. Angelou captured so elegantly in her prose. Emotional events are processed in the sensory systems and then transmitted to the medial-temporal lobe and the amygdale for the formation of an emotional memory. When the memory is cued and retrieved from the amygdale, it triggers an emotional response. Emotional experiences leave strong traces in the brain. Memories about emotional situations are stored in both the conscious and unconscious memory, which is part of the reason emotional memories are so enduring.1 Studies of patients with severe anterograde amnesia following circumscribed bilateral hippocampal brain damage showed enduring memories of emotion despite the absence of conscious memories.2 This has a demonstrably practical application in patients with dementia, who we now know have feelings of happiness and sadness long after they have forgotten what caused the emotion.3
The distinction is important because patients judge the quality of their medical care based on emotions. The patient satisfaction disconnect arises from the fact that physicians live in their cognitive memory, while patients live in their emotional memory. Being cognitive and objective is a critical skill a physician must bring to the bedside every day; the reason we don’t allow physicians to treat family members is that their ability to remain objective will be impaired. I realized that my emotion, my passion, and my empathy for the dying would impair my judgment when I started medical school, and I launched myself on a conscious and systematic discipline to keep those feelings out of my mind during patient care. The effort worked and, for the most part, I have been able to remain objective and unemotional as I care for my patients. Recently, however, I realized that my focus on objectivity negatively impacts patient experience. As a result, I have expanded my view: While I must stay objective and detached with my thinking, I must be emotionally engaged to provide a great patient experience.
I can remain objective and detached in my clinical judgment as I engage and connect emotionally during my patient encounters. This delicate balancing act has taken years of trial and error, however. I recently cared for a woman in her 60s who had fallen and broke her hip. Everyone was pleased that a top orthopedic surgeon was on call and able to give her the first-rate care she needed to begin walking again. The surgery went smoothly, and she was transferred to the medical/surgical ward, where things took a turn for the worse. She had a lot of anxiety in addition to her osteoporosis. Objectively, she was doing great, and we had a big success on our hands; however, she remained anxious, and she peppered the surgeon with fears that, while unfounded, were very real in her mind. The surgeon brushed them off, saying that her fears were not real and that he didn’t need to address them; his response made her emotional state spiral out of control. Her nurse notified me of the situation, and I came to her bedside. She was very agitated. I sat down at a low level and just started listening. She got all of her anxieties out in words. I held her hand, looked her in the eye, and assured her that I would be there for her and that things were going to be alright. Subsequently, she wrote letters of gratitude and proclaimed to any medical staff who would listen what a talented and great doctor I was. I did not have the skill to fix her broken hip; if it had been left to me alone, she would still be bed-bound. But I did have the human skills to connect with her and fix her agitated mind. If we remember the enduring power of the emotional memory, we can create great patient experiences.
The importance of these experiences was illustrated to me at the 2014 Dignity Health Patient Experience Summit, a powerful event featuring motivational speakers and leaders from across the country. The most powerful speakers, however, were patients. These patients had received terrible diagnoses that committed them to a prolonged interaction with the healthcare system. They were scared of what their diagnoses would mean for their future, they were subjected to uncomfortable procedures in which they struggled to maintain their dignity, and they repeatedly met the indifference of healthcare providers and clerical people who were only there to do a job. They related how the lack of caring and empathy made fears and anxiety much worse. But each of them had a story about that one person, that one care provider, who took the time to reassure them, to show that they cared, and to ensure that the patient did not feel alone. In most of these stories, the stand-out care providers took the time to hold their hands and reassure the patients. They took the time to connect with the patient’s emotional memory in a positive way, and that simple gesture of empathy had a powerful and lasting impact on the patient.
Invariably, the care provider at the heart of the patients’ stories was a nurse. Nurses have the reputation for being angels of mercy because they do the simple, empathetic gestures that let a patient know they are being cared for. These feelings endure in the patients’ memories long after the treatment is over. Doctors can, and should, be that type of care provider. It requires us to recognize that patients are scared and anxious, even though they may do their best not to show it. We, as physicians, often don’t see their anxiety, and we are so focused on the cognitive memory that we don’t address the anxiety and fear that is just under the surface. But taking just a few minutes to acknowledge their emotions, to explore them, and to reassure the patient that we are there for them has a lasting impact. In my group, we talk about the “human-business-human” encounter with patients. We begin all interactions with a human interaction (“Hello, I am Dr. McIlraith…”), conduct the business we came to provide (“Now I am going to examine you…”), and end with a human interaction (“What else can I do for you today?”). Patients expect physical contact with us during the “business” part of that interaction. I find that respectful, reassuring, and appropriate physical contact during the final “human” portion of that interaction helps solidify my patients’ experience. It helps make them feel that they have been cared for, particularly if the visit includes bad news.
Much of the recent focus on patient satisfaction has been driven by financial incentives. In 2013, CMS began penalizing hospitals 1.25% for poor HCAHPS scores as a part of the Affordable Care Act. In 2014, the maximum penalty increased to 2%, and to 3% in 2015. Hospitals have notoriously high overhead costs and slim profit margins, so these penalties can have a profound impact on the financial viability of an institution. But, while hospitals across the country have taken notice (see related article in this edition of The Hospitalist), I find doctors are more motivated by the well-being of their patients than are their hospital administrators. Satisfied patients are more compliant with treatment plans and have better outcomes.4,5 Hospitalists spend a lot of effort making sure their heart failure patients are on an ACE inhibitor, and their heart attack patients are discharged on aspirin, beta blockers, and statins so that they will have a good outcome following treatment for their acute illness. The same outcome-driven, evidence-based practice of medicine relates to patient satisfaction, however. Success in HCAHPS is as important as core measures when it comes to patient outcomes. And if I can’t convince you patient satisfaction is important because of the good it does for hospitals and patients, think about yourself for a minute. Satisfied patients are much less likely to sue their physicians.6 Practicing quality, evidence-based medicine will keep you out of peer review; however, satisfied patients will keep you out of the courtroom.
I frequently hear the comment that “we can do great on patient satisfaction, but then it gets busy, and patient satisfaction goes out the window.” My own experience contradicts this maxim, however. It is not how much time you spend with your patient but, rather, what you do with the time you have. One of the most powerful things we can do is listen. I used to make the mistake that I only wanted to hear the information I needed to figure out my patients’ problems so I could start treating them; however, I have come to learn that being heard is, in itself, therapy for my patients. It is often quoted that physicians interrupt their patients within 18 seconds of starting the interview.7 A lot of physicians dispense with attentive listening when they are under time pressure, when they should instead dispense with lengthy discourses on the patient treatment plan. It is important to educate our patients on their illness and treatment, I admit. I find a lot of hospitalists want to impart their knowledge and their treatment rationale to their patients; however, they frequently give patients and families much more information than they can hold in their cognitive memory. And time pressures are not the only anxieties hospitalists carry with them to the bedside. Our increasingly metric-driven profession means that we not only have to worry about morning discharges, interdisciplinary rounds, length of stay, and so on, but we also have to consider patient experience. It is not easy to hide all the stress we are under when we come to the bedside of a patient, but we have to. The easiest way to do that is to take a deep breath, sit next to the patient, ask an open-ended question, and then say nothing until the patient is done speaking. Active listening with good eye contact and encouragement to continue solidifies the patient’s experience of being heard. There are extreme cases when a patient is in a manic phase and won’t ever stop speaking; bend the rules a bit in those circumstances. However, the above rule works very effectively in the majority of physician-patient interactions. Being heard leaves an enduring emotional memory with our patients.
Hospital medicine often looks to other industries for inspiration on how we can improve. The airline industry is often held up as an example of how we can model patient safety, for instance, but these comparisons oversimplify the challenges we face. The same is true with patient satisfaction. In the business world, adages like “The customer is always right” are central to customer satisfaction, yet completely irrelevant to HM practice. Patients and families frequently have inappropriate and unrealistic expectations of their hospitalist physicians. We cannot, and should not, tell the patient addicted to narcotics that they can have as much IV Dilaudid as they would like. We cannot fix the patient with end-stage cancer, heart failure, or dementia. This is where we have to part ways with comparisons to principles that guide other industries if we are going to find a way forward with patient experience in hospital medicine. Because we have to set limits for patients, we often have to give our patients and families bad news, and because we have to tell them things they don’t like to hear, like “You can’t have any salt in your diet,” or “You must quit drinking alcohol,” we must develop our own principles on patient experience and satisfaction. Otherwise our options are either delivering inappropriate medical care or abandoning the pursuit of patient satisfaction all together. This is when we must remember that emotional memories are more enduring. We can’t always give our patients what they want, and we can’t always tell them what they want to hear, but we can always show them that we care. When we show our patients that we care in a palpable way, we leave them with the feeling that they have been cared for regardless of their condition, and the positive memory will endure despite the negative information we may have to convey. Maybe they won’t cut down on their salt or quit drinking alcohol, but they will never forget that their hospitalist physician cared.
And if they remember that the physician cared, it is much more likely that they will cut down on the salt or quit drinking alcohol when they go home. To paraphrase Maya Angelou, “I can’t always tell my patients what they want to hear, I can’t always tell them that their lifestyle is appropriate, but I can always show them that I care.”
Dr. McIlraith is chairman of the department of hospital medicine of Mercy Medical Group in Sacramento, Calif.
References
- LeDoux JE. Emotional memory. Scholarpedia. Accessed August 2, 2015.
- Feinstein JS, Duff MC, D Tranel D. Sustained experience of emotion after loss of memory in patients with amnesia. Proc Natl Acad Sci. 2010:107(17):7674-7679.
- Guzmán-Vélez E, Feinstein JS, Tranel D. Feelings without memory in Alzheimer disease. Cogn Behav Neurol. 2014;27(3):117-129.
- Institute of Medicine. Crossing the quality chasm: a new health system for the 21st century. March 2001. Accessed August 2, 2015.
- Bertakis KD, Azari R. Patient-centered care is associated with decreased health care utilization. J Am Board Fam Med. 2011;24(3):229-239.
- Stelfox HT, Gandhi TK, Orav EJ, Gustafson ML. The relation of patient statisfaction with complaints against physicians and malpractice lawsuits. Am J Med. 2005;118(10):1126-1133.
- Beckman HB, Frankel RM. The effect of physician behavior on the collection of data. Ann Intern Med. 1984;101(5):692-696.
There are two types of memory, the cognitive and the emotional, and the latter is more enduring. Maya Angelou characterized the distinction between these two types of memory most eloquently and succinctly when she said, “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” She was ahead of her time, because neurocognitive research has objectified with science what Ms. Angelou captured so elegantly in her prose. Emotional events are processed in the sensory systems and then transmitted to the medial-temporal lobe and the amygdale for the formation of an emotional memory. When the memory is cued and retrieved from the amygdale, it triggers an emotional response. Emotional experiences leave strong traces in the brain. Memories about emotional situations are stored in both the conscious and unconscious memory, which is part of the reason emotional memories are so enduring.1 Studies of patients with severe anterograde amnesia following circumscribed bilateral hippocampal brain damage showed enduring memories of emotion despite the absence of conscious memories.2 This has a demonstrably practical application in patients with dementia, who we now know have feelings of happiness and sadness long after they have forgotten what caused the emotion.3
The distinction is important because patients judge the quality of their medical care based on emotions. The patient satisfaction disconnect arises from the fact that physicians live in their cognitive memory, while patients live in their emotional memory. Being cognitive and objective is a critical skill a physician must bring to the bedside every day; the reason we don’t allow physicians to treat family members is that their ability to remain objective will be impaired. I realized that my emotion, my passion, and my empathy for the dying would impair my judgment when I started medical school, and I launched myself on a conscious and systematic discipline to keep those feelings out of my mind during patient care. The effort worked and, for the most part, I have been able to remain objective and unemotional as I care for my patients. Recently, however, I realized that my focus on objectivity negatively impacts patient experience. As a result, I have expanded my view: While I must stay objective and detached with my thinking, I must be emotionally engaged to provide a great patient experience.
I can remain objective and detached in my clinical judgment as I engage and connect emotionally during my patient encounters. This delicate balancing act has taken years of trial and error, however. I recently cared for a woman in her 60s who had fallen and broke her hip. Everyone was pleased that a top orthopedic surgeon was on call and able to give her the first-rate care she needed to begin walking again. The surgery went smoothly, and she was transferred to the medical/surgical ward, where things took a turn for the worse. She had a lot of anxiety in addition to her osteoporosis. Objectively, she was doing great, and we had a big success on our hands; however, she remained anxious, and she peppered the surgeon with fears that, while unfounded, were very real in her mind. The surgeon brushed them off, saying that her fears were not real and that he didn’t need to address them; his response made her emotional state spiral out of control. Her nurse notified me of the situation, and I came to her bedside. She was very agitated. I sat down at a low level and just started listening. She got all of her anxieties out in words. I held her hand, looked her in the eye, and assured her that I would be there for her and that things were going to be alright. Subsequently, she wrote letters of gratitude and proclaimed to any medical staff who would listen what a talented and great doctor I was. I did not have the skill to fix her broken hip; if it had been left to me alone, she would still be bed-bound. But I did have the human skills to connect with her and fix her agitated mind. If we remember the enduring power of the emotional memory, we can create great patient experiences.
The importance of these experiences was illustrated to me at the 2014 Dignity Health Patient Experience Summit, a powerful event featuring motivational speakers and leaders from across the country. The most powerful speakers, however, were patients. These patients had received terrible diagnoses that committed them to a prolonged interaction with the healthcare system. They were scared of what their diagnoses would mean for their future, they were subjected to uncomfortable procedures in which they struggled to maintain their dignity, and they repeatedly met the indifference of healthcare providers and clerical people who were only there to do a job. They related how the lack of caring and empathy made fears and anxiety much worse. But each of them had a story about that one person, that one care provider, who took the time to reassure them, to show that they cared, and to ensure that the patient did not feel alone. In most of these stories, the stand-out care providers took the time to hold their hands and reassure the patients. They took the time to connect with the patient’s emotional memory in a positive way, and that simple gesture of empathy had a powerful and lasting impact on the patient.
Invariably, the care provider at the heart of the patients’ stories was a nurse. Nurses have the reputation for being angels of mercy because they do the simple, empathetic gestures that let a patient know they are being cared for. These feelings endure in the patients’ memories long after the treatment is over. Doctors can, and should, be that type of care provider. It requires us to recognize that patients are scared and anxious, even though they may do their best not to show it. We, as physicians, often don’t see their anxiety, and we are so focused on the cognitive memory that we don’t address the anxiety and fear that is just under the surface. But taking just a few minutes to acknowledge their emotions, to explore them, and to reassure the patient that we are there for them has a lasting impact. In my group, we talk about the “human-business-human” encounter with patients. We begin all interactions with a human interaction (“Hello, I am Dr. McIlraith…”), conduct the business we came to provide (“Now I am going to examine you…”), and end with a human interaction (“What else can I do for you today?”). Patients expect physical contact with us during the “business” part of that interaction. I find that respectful, reassuring, and appropriate physical contact during the final “human” portion of that interaction helps solidify my patients’ experience. It helps make them feel that they have been cared for, particularly if the visit includes bad news.
Much of the recent focus on patient satisfaction has been driven by financial incentives. In 2013, CMS began penalizing hospitals 1.25% for poor HCAHPS scores as a part of the Affordable Care Act. In 2014, the maximum penalty increased to 2%, and to 3% in 2015. Hospitals have notoriously high overhead costs and slim profit margins, so these penalties can have a profound impact on the financial viability of an institution. But, while hospitals across the country have taken notice (see related article in this edition of The Hospitalist), I find doctors are more motivated by the well-being of their patients than are their hospital administrators. Satisfied patients are more compliant with treatment plans and have better outcomes.4,5 Hospitalists spend a lot of effort making sure their heart failure patients are on an ACE inhibitor, and their heart attack patients are discharged on aspirin, beta blockers, and statins so that they will have a good outcome following treatment for their acute illness. The same outcome-driven, evidence-based practice of medicine relates to patient satisfaction, however. Success in HCAHPS is as important as core measures when it comes to patient outcomes. And if I can’t convince you patient satisfaction is important because of the good it does for hospitals and patients, think about yourself for a minute. Satisfied patients are much less likely to sue their physicians.6 Practicing quality, evidence-based medicine will keep you out of peer review; however, satisfied patients will keep you out of the courtroom.
I frequently hear the comment that “we can do great on patient satisfaction, but then it gets busy, and patient satisfaction goes out the window.” My own experience contradicts this maxim, however. It is not how much time you spend with your patient but, rather, what you do with the time you have. One of the most powerful things we can do is listen. I used to make the mistake that I only wanted to hear the information I needed to figure out my patients’ problems so I could start treating them; however, I have come to learn that being heard is, in itself, therapy for my patients. It is often quoted that physicians interrupt their patients within 18 seconds of starting the interview.7 A lot of physicians dispense with attentive listening when they are under time pressure, when they should instead dispense with lengthy discourses on the patient treatment plan. It is important to educate our patients on their illness and treatment, I admit. I find a lot of hospitalists want to impart their knowledge and their treatment rationale to their patients; however, they frequently give patients and families much more information than they can hold in their cognitive memory. And time pressures are not the only anxieties hospitalists carry with them to the bedside. Our increasingly metric-driven profession means that we not only have to worry about morning discharges, interdisciplinary rounds, length of stay, and so on, but we also have to consider patient experience. It is not easy to hide all the stress we are under when we come to the bedside of a patient, but we have to. The easiest way to do that is to take a deep breath, sit next to the patient, ask an open-ended question, and then say nothing until the patient is done speaking. Active listening with good eye contact and encouragement to continue solidifies the patient’s experience of being heard. There are extreme cases when a patient is in a manic phase and won’t ever stop speaking; bend the rules a bit in those circumstances. However, the above rule works very effectively in the majority of physician-patient interactions. Being heard leaves an enduring emotional memory with our patients.
Hospital medicine often looks to other industries for inspiration on how we can improve. The airline industry is often held up as an example of how we can model patient safety, for instance, but these comparisons oversimplify the challenges we face. The same is true with patient satisfaction. In the business world, adages like “The customer is always right” are central to customer satisfaction, yet completely irrelevant to HM practice. Patients and families frequently have inappropriate and unrealistic expectations of their hospitalist physicians. We cannot, and should not, tell the patient addicted to narcotics that they can have as much IV Dilaudid as they would like. We cannot fix the patient with end-stage cancer, heart failure, or dementia. This is where we have to part ways with comparisons to principles that guide other industries if we are going to find a way forward with patient experience in hospital medicine. Because we have to set limits for patients, we often have to give our patients and families bad news, and because we have to tell them things they don’t like to hear, like “You can’t have any salt in your diet,” or “You must quit drinking alcohol,” we must develop our own principles on patient experience and satisfaction. Otherwise our options are either delivering inappropriate medical care or abandoning the pursuit of patient satisfaction all together. This is when we must remember that emotional memories are more enduring. We can’t always give our patients what they want, and we can’t always tell them what they want to hear, but we can always show them that we care. When we show our patients that we care in a palpable way, we leave them with the feeling that they have been cared for regardless of their condition, and the positive memory will endure despite the negative information we may have to convey. Maybe they won’t cut down on their salt or quit drinking alcohol, but they will never forget that their hospitalist physician cared.
And if they remember that the physician cared, it is much more likely that they will cut down on the salt or quit drinking alcohol when they go home. To paraphrase Maya Angelou, “I can’t always tell my patients what they want to hear, I can’t always tell them that their lifestyle is appropriate, but I can always show them that I care.”
Dr. McIlraith is chairman of the department of hospital medicine of Mercy Medical Group in Sacramento, Calif.
References
- LeDoux JE. Emotional memory. Scholarpedia. Accessed August 2, 2015.
- Feinstein JS, Duff MC, D Tranel D. Sustained experience of emotion after loss of memory in patients with amnesia. Proc Natl Acad Sci. 2010:107(17):7674-7679.
- Guzmán-Vélez E, Feinstein JS, Tranel D. Feelings without memory in Alzheimer disease. Cogn Behav Neurol. 2014;27(3):117-129.
- Institute of Medicine. Crossing the quality chasm: a new health system for the 21st century. March 2001. Accessed August 2, 2015.
- Bertakis KD, Azari R. Patient-centered care is associated with decreased health care utilization. J Am Board Fam Med. 2011;24(3):229-239.
- Stelfox HT, Gandhi TK, Orav EJ, Gustafson ML. The relation of patient statisfaction with complaints against physicians and malpractice lawsuits. Am J Med. 2005;118(10):1126-1133.
- Beckman HB, Frankel RM. The effect of physician behavior on the collection of data. Ann Intern Med. 1984;101(5):692-696.
There are two types of memory, the cognitive and the emotional, and the latter is more enduring. Maya Angelou characterized the distinction between these two types of memory most eloquently and succinctly when she said, “I’ve learned that people will forget what you said, people will forget what you did, but people will never forget how you made them feel.” She was ahead of her time, because neurocognitive research has objectified with science what Ms. Angelou captured so elegantly in her prose. Emotional events are processed in the sensory systems and then transmitted to the medial-temporal lobe and the amygdale for the formation of an emotional memory. When the memory is cued and retrieved from the amygdale, it triggers an emotional response. Emotional experiences leave strong traces in the brain. Memories about emotional situations are stored in both the conscious and unconscious memory, which is part of the reason emotional memories are so enduring.1 Studies of patients with severe anterograde amnesia following circumscribed bilateral hippocampal brain damage showed enduring memories of emotion despite the absence of conscious memories.2 This has a demonstrably practical application in patients with dementia, who we now know have feelings of happiness and sadness long after they have forgotten what caused the emotion.3
The distinction is important because patients judge the quality of their medical care based on emotions. The patient satisfaction disconnect arises from the fact that physicians live in their cognitive memory, while patients live in their emotional memory. Being cognitive and objective is a critical skill a physician must bring to the bedside every day; the reason we don’t allow physicians to treat family members is that their ability to remain objective will be impaired. I realized that my emotion, my passion, and my empathy for the dying would impair my judgment when I started medical school, and I launched myself on a conscious and systematic discipline to keep those feelings out of my mind during patient care. The effort worked and, for the most part, I have been able to remain objective and unemotional as I care for my patients. Recently, however, I realized that my focus on objectivity negatively impacts patient experience. As a result, I have expanded my view: While I must stay objective and detached with my thinking, I must be emotionally engaged to provide a great patient experience.
I can remain objective and detached in my clinical judgment as I engage and connect emotionally during my patient encounters. This delicate balancing act has taken years of trial and error, however. I recently cared for a woman in her 60s who had fallen and broke her hip. Everyone was pleased that a top orthopedic surgeon was on call and able to give her the first-rate care she needed to begin walking again. The surgery went smoothly, and she was transferred to the medical/surgical ward, where things took a turn for the worse. She had a lot of anxiety in addition to her osteoporosis. Objectively, she was doing great, and we had a big success on our hands; however, she remained anxious, and she peppered the surgeon with fears that, while unfounded, were very real in her mind. The surgeon brushed them off, saying that her fears were not real and that he didn’t need to address them; his response made her emotional state spiral out of control. Her nurse notified me of the situation, and I came to her bedside. She was very agitated. I sat down at a low level and just started listening. She got all of her anxieties out in words. I held her hand, looked her in the eye, and assured her that I would be there for her and that things were going to be alright. Subsequently, she wrote letters of gratitude and proclaimed to any medical staff who would listen what a talented and great doctor I was. I did not have the skill to fix her broken hip; if it had been left to me alone, she would still be bed-bound. But I did have the human skills to connect with her and fix her agitated mind. If we remember the enduring power of the emotional memory, we can create great patient experiences.
The importance of these experiences was illustrated to me at the 2014 Dignity Health Patient Experience Summit, a powerful event featuring motivational speakers and leaders from across the country. The most powerful speakers, however, were patients. These patients had received terrible diagnoses that committed them to a prolonged interaction with the healthcare system. They were scared of what their diagnoses would mean for their future, they were subjected to uncomfortable procedures in which they struggled to maintain their dignity, and they repeatedly met the indifference of healthcare providers and clerical people who were only there to do a job. They related how the lack of caring and empathy made fears and anxiety much worse. But each of them had a story about that one person, that one care provider, who took the time to reassure them, to show that they cared, and to ensure that the patient did not feel alone. In most of these stories, the stand-out care providers took the time to hold their hands and reassure the patients. They took the time to connect with the patient’s emotional memory in a positive way, and that simple gesture of empathy had a powerful and lasting impact on the patient.
Invariably, the care provider at the heart of the patients’ stories was a nurse. Nurses have the reputation for being angels of mercy because they do the simple, empathetic gestures that let a patient know they are being cared for. These feelings endure in the patients’ memories long after the treatment is over. Doctors can, and should, be that type of care provider. It requires us to recognize that patients are scared and anxious, even though they may do their best not to show it. We, as physicians, often don’t see their anxiety, and we are so focused on the cognitive memory that we don’t address the anxiety and fear that is just under the surface. But taking just a few minutes to acknowledge their emotions, to explore them, and to reassure the patient that we are there for them has a lasting impact. In my group, we talk about the “human-business-human” encounter with patients. We begin all interactions with a human interaction (“Hello, I am Dr. McIlraith…”), conduct the business we came to provide (“Now I am going to examine you…”), and end with a human interaction (“What else can I do for you today?”). Patients expect physical contact with us during the “business” part of that interaction. I find that respectful, reassuring, and appropriate physical contact during the final “human” portion of that interaction helps solidify my patients’ experience. It helps make them feel that they have been cared for, particularly if the visit includes bad news.
Much of the recent focus on patient satisfaction has been driven by financial incentives. In 2013, CMS began penalizing hospitals 1.25% for poor HCAHPS scores as a part of the Affordable Care Act. In 2014, the maximum penalty increased to 2%, and to 3% in 2015. Hospitals have notoriously high overhead costs and slim profit margins, so these penalties can have a profound impact on the financial viability of an institution. But, while hospitals across the country have taken notice (see related article in this edition of The Hospitalist), I find doctors are more motivated by the well-being of their patients than are their hospital administrators. Satisfied patients are more compliant with treatment plans and have better outcomes.4,5 Hospitalists spend a lot of effort making sure their heart failure patients are on an ACE inhibitor, and their heart attack patients are discharged on aspirin, beta blockers, and statins so that they will have a good outcome following treatment for their acute illness. The same outcome-driven, evidence-based practice of medicine relates to patient satisfaction, however. Success in HCAHPS is as important as core measures when it comes to patient outcomes. And if I can’t convince you patient satisfaction is important because of the good it does for hospitals and patients, think about yourself for a minute. Satisfied patients are much less likely to sue their physicians.6 Practicing quality, evidence-based medicine will keep you out of peer review; however, satisfied patients will keep you out of the courtroom.
I frequently hear the comment that “we can do great on patient satisfaction, but then it gets busy, and patient satisfaction goes out the window.” My own experience contradicts this maxim, however. It is not how much time you spend with your patient but, rather, what you do with the time you have. One of the most powerful things we can do is listen. I used to make the mistake that I only wanted to hear the information I needed to figure out my patients’ problems so I could start treating them; however, I have come to learn that being heard is, in itself, therapy for my patients. It is often quoted that physicians interrupt their patients within 18 seconds of starting the interview.7 A lot of physicians dispense with attentive listening when they are under time pressure, when they should instead dispense with lengthy discourses on the patient treatment plan. It is important to educate our patients on their illness and treatment, I admit. I find a lot of hospitalists want to impart their knowledge and their treatment rationale to their patients; however, they frequently give patients and families much more information than they can hold in their cognitive memory. And time pressures are not the only anxieties hospitalists carry with them to the bedside. Our increasingly metric-driven profession means that we not only have to worry about morning discharges, interdisciplinary rounds, length of stay, and so on, but we also have to consider patient experience. It is not easy to hide all the stress we are under when we come to the bedside of a patient, but we have to. The easiest way to do that is to take a deep breath, sit next to the patient, ask an open-ended question, and then say nothing until the patient is done speaking. Active listening with good eye contact and encouragement to continue solidifies the patient’s experience of being heard. There are extreme cases when a patient is in a manic phase and won’t ever stop speaking; bend the rules a bit in those circumstances. However, the above rule works very effectively in the majority of physician-patient interactions. Being heard leaves an enduring emotional memory with our patients.
Hospital medicine often looks to other industries for inspiration on how we can improve. The airline industry is often held up as an example of how we can model patient safety, for instance, but these comparisons oversimplify the challenges we face. The same is true with patient satisfaction. In the business world, adages like “The customer is always right” are central to customer satisfaction, yet completely irrelevant to HM practice. Patients and families frequently have inappropriate and unrealistic expectations of their hospitalist physicians. We cannot, and should not, tell the patient addicted to narcotics that they can have as much IV Dilaudid as they would like. We cannot fix the patient with end-stage cancer, heart failure, or dementia. This is where we have to part ways with comparisons to principles that guide other industries if we are going to find a way forward with patient experience in hospital medicine. Because we have to set limits for patients, we often have to give our patients and families bad news, and because we have to tell them things they don’t like to hear, like “You can’t have any salt in your diet,” or “You must quit drinking alcohol,” we must develop our own principles on patient experience and satisfaction. Otherwise our options are either delivering inappropriate medical care or abandoning the pursuit of patient satisfaction all together. This is when we must remember that emotional memories are more enduring. We can’t always give our patients what they want, and we can’t always tell them what they want to hear, but we can always show them that we care. When we show our patients that we care in a palpable way, we leave them with the feeling that they have been cared for regardless of their condition, and the positive memory will endure despite the negative information we may have to convey. Maybe they won’t cut down on their salt or quit drinking alcohol, but they will never forget that their hospitalist physician cared.
And if they remember that the physician cared, it is much more likely that they will cut down on the salt or quit drinking alcohol when they go home. To paraphrase Maya Angelou, “I can’t always tell my patients what they want to hear, I can’t always tell them that their lifestyle is appropriate, but I can always show them that I care.”
Dr. McIlraith is chairman of the department of hospital medicine of Mercy Medical Group in Sacramento, Calif.
References
- LeDoux JE. Emotional memory. Scholarpedia. Accessed August 2, 2015.
- Feinstein JS, Duff MC, D Tranel D. Sustained experience of emotion after loss of memory in patients with amnesia. Proc Natl Acad Sci. 2010:107(17):7674-7679.
- Guzmán-Vélez E, Feinstein JS, Tranel D. Feelings without memory in Alzheimer disease. Cogn Behav Neurol. 2014;27(3):117-129.
- Institute of Medicine. Crossing the quality chasm: a new health system for the 21st century. March 2001. Accessed August 2, 2015.
- Bertakis KD, Azari R. Patient-centered care is associated with decreased health care utilization. J Am Board Fam Med. 2011;24(3):229-239.
- Stelfox HT, Gandhi TK, Orav EJ, Gustafson ML. The relation of patient statisfaction with complaints against physicians and malpractice lawsuits. Am J Med. 2005;118(10):1126-1133.
- Beckman HB, Frankel RM. The effect of physician behavior on the collection of data. Ann Intern Med. 1984;101(5):692-696.
Evaluation of Gender as a Clinically Relevant Outcome Variable in the Treatment of Onychomycosis With Efinaconazole Topical Solution 10%
Onychomycosis is the most common nail disease in adults, representing up to 50% of all nail disorders, and is nearly always associated with tinea pedis.1,2 Moreover, toenail onychomycosis frequently involves several nails3 and can be more challenging to treat because of the slow growth rate of nails and the difficult delivery of antifungal agents to the nail bed.3,4
The most prevalent predisposing risk factor for developing onychomycosis is advanced age, with a reported prevalence of 18.2% in patients aged 60 to 79 years compared to 0.7% in patients younger than 19 years.2 Men are up to 3 times more likely to develop onychomycosis than women, though the reasons for this gender difference are less clear.2,5 It has been hypothesized that occupational factors may play a role,2 with increased use of occlusive footwear and more frequent nail injuries contributing to a higher incidence of onychomycosis in males.6
Differences in hormone levels associated with gender also may result in different capacities to inhibit the growth of dermatophytes.2 The risk for developing onychomycosis increases with age at a similar rate in both genders.7
Although onychomycosis is more common in men, the disease has been shown to have a greater impact on quality of life (QOL) in women. Studies have shown that onychomycosis was more likely to cause embarrassment in women than in men (83% vs 71%; N=258), and women with onychomycosis felt severely embarrassed more often than men (44% vs 26%; N=258).8,9 Additionally, one study (N=43,593) showed statistically significant differences associated with gender among onychomycosis patients who reported experiencing pain (33.7% of women vs 26.7% of men; P<.001), discomfort in walking (43.1% vs 36.4%; P<.001), and embarrassment (28.8% vs 25.1%; P<.001).10 Severe cases of onychomycosis even appear to have a negative impact on patients’ intimate relationships, and lower self-esteem has been reported in female patients due to unsightly and contagious-looking nail plates.11,12 Socks and stockings frequently may be damaged due to the constant friction from diseased nails that are sharp and dystrophic.13,14 In one study, treatment satisfaction was related to improvement in nail condition; however, males tended to be more satisfied with the improvement than females. Females were significantly less satisfied than males based on QOL scores for discomfort in wearing shoes (61.5 vs 86.3; P=.001), restrictions in shoe options (59.0 vs 82.8; P=.001), and the need to conceal toenails (73.3 vs 89.3; P<.01).15
Numerous studies have assessed the effectiveness of antifungal drugs in treating onychomycosis; however, there are limited data available on the impact of gender on outcome variables. Results from 2 identical 52-week, prospective, multicenter, randomized, double-blind studies of a total of 1655 participants (age range, 18–70 years) assessing the safety and efficacy of efinaconazole topical solution 10% in the treatment of onychomycosis were reported in 2013.16 Here, a gender subgroup analysis for male and female participants with mild to moderate onychomycosis is presented.
Methods
Two 52-week, prospective, multicenter, randomized, double-blind, vehicle-controlled studies were designed to evaluate the efficacy, safety, and tolerability of efinaconazole topical solution 10% versus vehicle in 1655 participants aged 18 to 70 years with mild to moderate toenail onychomycosis. Participants who presented with 20% to 50% clinical involvement of the target toenail were randomized (3:1 ratio) to once-daily application of a blinded study drug on the toenails for 48 weeks, followed by a 4-week follow-up period.16
Efficacy Evaluation
The primary efficacy end point was complete cure, defined as 0% clinical involvement of target toenail and mycologic cure based on negative potassium hydroxide examination and negative fungal culture at week 52.16 Secondary and supportive efficacy end points included mycologic cure, treatment success (<10% clinical involvement of the target toenail), complete or almost complete cure (≤5% clinical involvement and mycologic cure), and change in QOL based on a self-administered QOL questionnaire. All secondary end points were assessed at week 52.16 All items in the QOL questionnaire were transferred to a 0 to 100 scale, with higher scores indicating better functioning.17
In both studies, treatment compliance was assessed through participant diaries that detailed all drug applications as well as the weight of returned product bottles. Participants were considered noncompliant if they missed more than 14 cumulative applications of the study drug in the 28 days leading up to the visit at week 48, if they missed more than 20% of the total number of expected study drug applications during the treatment period, and/or if they missed 28 or more consecutive applications of the study drug during the total treatment period.
Safety Evaluation
Safety assessments included monitoring and recording adverse events (AEs) until week 52.16
Results
The 2 studies included a total of 1275 (77.2%) male and 376 (22.8%) female participants with mild to moderate onychomycosis (intention-to-treat population). Pooled results are provided in this analysis.
At baseline, the mean area of target toenail involvement among male and female participants in the efinaconazole treatment group was 36.7% and 35.6%, respectively, compared to 36.4% and 37.9%, respectively, in the vehicle group. The mean number of affected nontarget toenails was 2.8 and 2.7 among male and female participants, respectively, in the efinaconazole group compared to 2.9 and 2.4, respectively, in the vehicle group (Table 1).
Female participants tended to be somewhat more compliant with treatment than male participants at study end. At week 52, 93.0% and 93.4% of female participants in the efinaconazole and vehicle groups, respectively, were considered compliant with treatment compared to 91.1% and 88.6% of male participants, respectively (Table 1).
Primary Efficacy End Point (Observed Case)
At week 52, 15.8% of male and 27.1% of female participants in the efinaconazole treatment group had a complete cure compared to 4.2% and 6.3%, respectively, of those in the vehicle group (both P<.001). Efinaconazole topical solution 10% was significantly more effective than vehicle from week 48 (P<.001 male and P=.004 female).
The differences in complete cure rates reported for male (15.8%) and female (27.1%) participants treated with efinaconazole topical solution 10% were significant at week 52 (P=.001)(Figure 1).
|
| Figure 1. Proportion of male and female participants treated with once-daily application of efinaconazole topical solution 10% who achieved complete cure from weeks 12 to 52 (observed case; intention-to-treat population; pooled data). |
|
| Figure 2. Treatment success (defined as ≤10% clinical involvement of the target toenail) at week 52. Comparison of results with efinaconazole topical solution 10% and vehicle (observed case; intention-to-treat population; pooled data). |
Secondary and Supportive Efficacy End Points (Observed Case)
At week 52, 53.7% of male participants and 64.8% of female participants in the efinaconazole group achieved mycologic cure compared to 14.8% and 22.5%, respectively, of those in the vehicle group (both P<.001). Mycologic cure in the efinaconazole group versus the vehicle group became statistically significant at week 12 in male participants (P=.002) and at week 24 in female participants (P<.001).
At week 52, more male and female participants in the efinaconazole group (24.9% and 36.8%, respectively) achieved complete or almost complete cure compared to those in the vehicle group (6.8% and 11.3%, respectively), and 43.5% and 59.1% of male and female participants, respectively, were considered treatment successes (≤10% clinical involvement of the target toenail) compared to 15.5% and 26.8%, respectively, in the vehicle group (all P<.001)(Figure 2).
Treatment satisfaction scores were higher among female participants. At week 52, the mean QOL assessment score among female participants in the efinaconazole group was 77.2 compared to 70.3 among male participants in the same group (43.0 and 41.2, respectively, in the vehicle group). All QOL assessment scores were lower (ie, worse) in female onychomycosis participants at baseline. Improvements in all QOL scores were much greater in female participants at week 52 (Table 2).
The total number of efinaconazole applications was similar among male and female participants (315.1 vs 316.7). The mean amount of efina- conazole applied was greater in male participants (50.4 g vs 45.6 g), and overall compliance rates, though similar, were slightly higher in females compared to males (efinaconazole only)(93.0% vs 91.1%).
Safety
Overall, AE rates for efinaconazole were similar to those reported for vehicle (65.3% vs 59.8%).16 Slightly more female participants reported 1 or more AE than males (71.3% vs 63.5%). Adverse events were generally mild (50.0% in females; 53.7% in males) or moderate (46.7% in females; 41.8% in males) in severity, were not related to the study drug (89.9% in females; 93.1% in males), and resolved without sequelae. The rate of discontinuation from AEs was low (2.8% in females; 2.5% in males).
Comment
Efinaconazole topical solution 10% was significantly more effective than vehicle in both male and female participants with mild to moderate onychomycosis. It appears to be especially effective in female participants, with more than 27% of female participants achieving complete cure at week 52, and nearly 37% of female participants achieving complete or almost complete cure at week 52.
Mycologic cure is the only consistently defined efficacy parameter reported in toenail onychomycosis studies.18 It often is considered the main treatment goal, with complete cure occurring somewhat later as the nails grow out.19 Indeed, in this subgroup analysis the differences seen between the active and vehicle groups correlated well with the cure rates seen at week 52. Interestingly, significantly better mycologic cure rates (P=.002, active vs vehicle) were seen as early as week 12 in the male subgroup.
The current analysis suggests that male onychomycosis patients may be more difficult to treat, a finding noted by other investigators, though the reason is not clear.20 It is known that the prevalence of onychomycosis is higher in males,2,5 but data comparing cure rates by gender is lacking. It has been suggested that men more frequently undergo nail trauma and tend to seek help for more advanced disease.20 Treatment compliance also may be an issue. In our study, mean nail involvement was similar among male and female participants treated with efinaconazole (36.7% and 35.6%, respectively). Treatment compliance was higher among females compared to males (93.0% vs 91.1%), with the lowest compliance rates seen in males in the vehicle group (where complete cure rates also were the lowest). The amount of study drug used was greater in males, possibly due to larger toenails, though toenail surface area was not measured. Although there is no evidence to suggest that male toenails grow quicker, as many factors can impact nail growth, they tend to be thicker. Patients with thick toenails may be less likely to achieve complete cure.20 It also is possible that male toenails take longer to grow out fully, and they may require a longer treatment course. The 52-week duration of these studies may not have allowed for full regrowth of the nails, despite mycologic cure. Indeed, continued improvement in cure rates in onychomycosis patients with longer treatment courses have been noted by other investigators.21
The current analysis revealed much lower baseline QOL scores in female onychomycosis patients compared to male patients. Given that target nail involvement at baseline was similar across both groups, this finding may be indicative of greater concern about their condition among females, supporting other views that onychomycosis has a greater impact on QOL in female patients. Similar scores reported across genders at week 52 likely reflects the greater efficacy seen in females.
Conclusion
Based on this subgroup analysis, once-daily application of efinaconazole topical solution 10% may provide a useful option in the treatment of mild to moderate onychomycosis, particularly in female patients. The greater improvement in nail condition concomitantly among females translates to higher overall treatment satisfaction.
Acknowledgment—The author thanks Brian Bulley, MSc, of Inergy Limited, Lindfield, West Sussex, United Kingdom, for medical writing support. Valeant Pharmaceuticals North America, LLC, funded Inergy’s activities pertaining to the manuscript.
1. Scher RK, Coppa LM. Advances in the diagnosis and treatment of onychomycosis. Hosp Med. 1998;34:11-20.
2. Gupta AK, Jain HC, Lynde CW, et al. Prevalence and epidemiology of onychomycosis in patients visiting physicians’ offices: a multicenter Canadian survey of 15,000 patients. J Am Acad Dermatol. 2000;43:244-248.
3. Finch JJ, Warshaw EM. Toenail onychomycosis: current and future treatment options. Dermatol Ther. 2007;20:31-46.
4. Kumar S, Kimball AB. New antifungal therapies for the treatment of onychomycosis. Expert Opin Investig Drugs. 2009;18:727-734.
5. Elewski BE, Charif MA. Prevalence of onychomycosis in patients attending a dermatology clinic in northeastern Ohio for other conditions. Arch Dermatol. 1997;133:1172-1173.
6. Araujo AJG, Bastos OMP, Souza MAJ, et al. Occurrence of onychomycosis among patients attended in dermatology offices in the city of Rio de Janeiro, Brazil. An Bras Dermatol. 2003;78:299-308.
7. Pierard G. Onychomycosis and other superficial fungal infections of the foot in the elderly: a Pan-European Survey. Dermatology. 2001;202:220-224.
8. Drake LA, Scher RK, Smith EB, et al. Effect of onychomycosis on quality of life. J Am Acad Dermatol. 1998;38(5, pt 1):702-704.
9. Kowalczuk-Zieleniec E, Nowicki E, Majkowicz M. Onychomycosis changes quality of life. J Eur Acad Dermatol Venereol. 2002;16(suppl 1):248.
10. Katsambas A, Abeck D, Haneke E, et al. The effects of foot disease on quality of life: results of the Achilles Project. J Eur Acad Dermatol Venereol. 2005;19:191-195.
11. Salgo PL, Daniel CR, Gupta AK, et al. Onychomycosis disease management. Medical Crossfire: Debates, Peer Exchange and Insights in Medicine. 2003;4:1-17.
12. Elewski BE. The effect of toenail onychomycosis on patient quality of life. Int J Dermatol. 1997;36:754-756.
13. Hay RJ. The future of onychomycosis therapy may involve a combination of approaches. Br J Dermatol. 2001;145:3-8.
14. Whittam LR, Hay RJ. The impact of onychomycosis on quality of life. Clin Exp Dermatol. 1997;22:87-89.
15. Stier DM, Gause D, Joseph WS, et al. Patient satisfaction with oral versus nonoral therapeutic approaches in onychomycosis. J Am Podiatr Med Assoc. 2001;91:521-527.
16. Elewski BE, Rich P, Pollak R, et al. Efinaconazole 10% solution in the treatment of toenail onychomycosis: two phase 3 multicenter, randomized, double-blind studies. J Am Acad Dermatol. 2013;68:600-608.
17. Tosti A, Elewski BE. Treatment of onychomycosis with efinaconazole 10% topical solution and quality of life. J Clin Aesthet Dermatol. 2014;7:25-30.
18. Werschler WP, Bondar G, Armstrong D. Assessing treatment outcomes in toenail onychomycosis clinical trials. Am J Clin Dermatol. 2004;5:145-152.
19. Gupta AK. Treatment of dermatophyte toenail onychomycosis in the United States: a pharmacoeconomic analysis. J Am Podiatr Med Assoc. 2002;92:272-286.
20. Sigurgeirsson B. Prognostic factors for cure following treatment of onychomycosis. J Eur Acad Dermatol Venereol. 2010;24:679-684.
21. Epstein E. How often does oral treatment of toenail onychomycosis produce a disease-free nail? an analysis of published data. Arch Dermatol. 1998;134:1551-1554.
Onychomycosis is the most common nail disease in adults, representing up to 50% of all nail disorders, and is nearly always associated with tinea pedis.1,2 Moreover, toenail onychomycosis frequently involves several nails3 and can be more challenging to treat because of the slow growth rate of nails and the difficult delivery of antifungal agents to the nail bed.3,4
The most prevalent predisposing risk factor for developing onychomycosis is advanced age, with a reported prevalence of 18.2% in patients aged 60 to 79 years compared to 0.7% in patients younger than 19 years.2 Men are up to 3 times more likely to develop onychomycosis than women, though the reasons for this gender difference are less clear.2,5 It has been hypothesized that occupational factors may play a role,2 with increased use of occlusive footwear and more frequent nail injuries contributing to a higher incidence of onychomycosis in males.6
Differences in hormone levels associated with gender also may result in different capacities to inhibit the growth of dermatophytes.2 The risk for developing onychomycosis increases with age at a similar rate in both genders.7
Although onychomycosis is more common in men, the disease has been shown to have a greater impact on quality of life (QOL) in women. Studies have shown that onychomycosis was more likely to cause embarrassment in women than in men (83% vs 71%; N=258), and women with onychomycosis felt severely embarrassed more often than men (44% vs 26%; N=258).8,9 Additionally, one study (N=43,593) showed statistically significant differences associated with gender among onychomycosis patients who reported experiencing pain (33.7% of women vs 26.7% of men; P<.001), discomfort in walking (43.1% vs 36.4%; P<.001), and embarrassment (28.8% vs 25.1%; P<.001).10 Severe cases of onychomycosis even appear to have a negative impact on patients’ intimate relationships, and lower self-esteem has been reported in female patients due to unsightly and contagious-looking nail plates.11,12 Socks and stockings frequently may be damaged due to the constant friction from diseased nails that are sharp and dystrophic.13,14 In one study, treatment satisfaction was related to improvement in nail condition; however, males tended to be more satisfied with the improvement than females. Females were significantly less satisfied than males based on QOL scores for discomfort in wearing shoes (61.5 vs 86.3; P=.001), restrictions in shoe options (59.0 vs 82.8; P=.001), and the need to conceal toenails (73.3 vs 89.3; P<.01).15
Numerous studies have assessed the effectiveness of antifungal drugs in treating onychomycosis; however, there are limited data available on the impact of gender on outcome variables. Results from 2 identical 52-week, prospective, multicenter, randomized, double-blind studies of a total of 1655 participants (age range, 18–70 years) assessing the safety and efficacy of efinaconazole topical solution 10% in the treatment of onychomycosis were reported in 2013.16 Here, a gender subgroup analysis for male and female participants with mild to moderate onychomycosis is presented.
Methods
Two 52-week, prospective, multicenter, randomized, double-blind, vehicle-controlled studies were designed to evaluate the efficacy, safety, and tolerability of efinaconazole topical solution 10% versus vehicle in 1655 participants aged 18 to 70 years with mild to moderate toenail onychomycosis. Participants who presented with 20% to 50% clinical involvement of the target toenail were randomized (3:1 ratio) to once-daily application of a blinded study drug on the toenails for 48 weeks, followed by a 4-week follow-up period.16
Efficacy Evaluation
The primary efficacy end point was complete cure, defined as 0% clinical involvement of target toenail and mycologic cure based on negative potassium hydroxide examination and negative fungal culture at week 52.16 Secondary and supportive efficacy end points included mycologic cure, treatment success (<10% clinical involvement of the target toenail), complete or almost complete cure (≤5% clinical involvement and mycologic cure), and change in QOL based on a self-administered QOL questionnaire. All secondary end points were assessed at week 52.16 All items in the QOL questionnaire were transferred to a 0 to 100 scale, with higher scores indicating better functioning.17
In both studies, treatment compliance was assessed through participant diaries that detailed all drug applications as well as the weight of returned product bottles. Participants were considered noncompliant if they missed more than 14 cumulative applications of the study drug in the 28 days leading up to the visit at week 48, if they missed more than 20% of the total number of expected study drug applications during the treatment period, and/or if they missed 28 or more consecutive applications of the study drug during the total treatment period.
Safety Evaluation
Safety assessments included monitoring and recording adverse events (AEs) until week 52.16
Results
The 2 studies included a total of 1275 (77.2%) male and 376 (22.8%) female participants with mild to moderate onychomycosis (intention-to-treat population). Pooled results are provided in this analysis.
At baseline, the mean area of target toenail involvement among male and female participants in the efinaconazole treatment group was 36.7% and 35.6%, respectively, compared to 36.4% and 37.9%, respectively, in the vehicle group. The mean number of affected nontarget toenails was 2.8 and 2.7 among male and female participants, respectively, in the efinaconazole group compared to 2.9 and 2.4, respectively, in the vehicle group (Table 1).
Female participants tended to be somewhat more compliant with treatment than male participants at study end. At week 52, 93.0% and 93.4% of female participants in the efinaconazole and vehicle groups, respectively, were considered compliant with treatment compared to 91.1% and 88.6% of male participants, respectively (Table 1).
Primary Efficacy End Point (Observed Case)
At week 52, 15.8% of male and 27.1% of female participants in the efinaconazole treatment group had a complete cure compared to 4.2% and 6.3%, respectively, of those in the vehicle group (both P<.001). Efinaconazole topical solution 10% was significantly more effective than vehicle from week 48 (P<.001 male and P=.004 female).
The differences in complete cure rates reported for male (15.8%) and female (27.1%) participants treated with efinaconazole topical solution 10% were significant at week 52 (P=.001)(Figure 1).
|
| Figure 1. Proportion of male and female participants treated with once-daily application of efinaconazole topical solution 10% who achieved complete cure from weeks 12 to 52 (observed case; intention-to-treat population; pooled data). |
|
| Figure 2. Treatment success (defined as ≤10% clinical involvement of the target toenail) at week 52. Comparison of results with efinaconazole topical solution 10% and vehicle (observed case; intention-to-treat population; pooled data). |
Secondary and Supportive Efficacy End Points (Observed Case)
At week 52, 53.7% of male participants and 64.8% of female participants in the efinaconazole group achieved mycologic cure compared to 14.8% and 22.5%, respectively, of those in the vehicle group (both P<.001). Mycologic cure in the efinaconazole group versus the vehicle group became statistically significant at week 12 in male participants (P=.002) and at week 24 in female participants (P<.001).
At week 52, more male and female participants in the efinaconazole group (24.9% and 36.8%, respectively) achieved complete or almost complete cure compared to those in the vehicle group (6.8% and 11.3%, respectively), and 43.5% and 59.1% of male and female participants, respectively, were considered treatment successes (≤10% clinical involvement of the target toenail) compared to 15.5% and 26.8%, respectively, in the vehicle group (all P<.001)(Figure 2).
Treatment satisfaction scores were higher among female participants. At week 52, the mean QOL assessment score among female participants in the efinaconazole group was 77.2 compared to 70.3 among male participants in the same group (43.0 and 41.2, respectively, in the vehicle group). All QOL assessment scores were lower (ie, worse) in female onychomycosis participants at baseline. Improvements in all QOL scores were much greater in female participants at week 52 (Table 2).
The total number of efinaconazole applications was similar among male and female participants (315.1 vs 316.7). The mean amount of efina- conazole applied was greater in male participants (50.4 g vs 45.6 g), and overall compliance rates, though similar, were slightly higher in females compared to males (efinaconazole only)(93.0% vs 91.1%).
Safety
Overall, AE rates for efinaconazole were similar to those reported for vehicle (65.3% vs 59.8%).16 Slightly more female participants reported 1 or more AE than males (71.3% vs 63.5%). Adverse events were generally mild (50.0% in females; 53.7% in males) or moderate (46.7% in females; 41.8% in males) in severity, were not related to the study drug (89.9% in females; 93.1% in males), and resolved without sequelae. The rate of discontinuation from AEs was low (2.8% in females; 2.5% in males).
Comment
Efinaconazole topical solution 10% was significantly more effective than vehicle in both male and female participants with mild to moderate onychomycosis. It appears to be especially effective in female participants, with more than 27% of female participants achieving complete cure at week 52, and nearly 37% of female participants achieving complete or almost complete cure at week 52.
Mycologic cure is the only consistently defined efficacy parameter reported in toenail onychomycosis studies.18 It often is considered the main treatment goal, with complete cure occurring somewhat later as the nails grow out.19 Indeed, in this subgroup analysis the differences seen between the active and vehicle groups correlated well with the cure rates seen at week 52. Interestingly, significantly better mycologic cure rates (P=.002, active vs vehicle) were seen as early as week 12 in the male subgroup.
The current analysis suggests that male onychomycosis patients may be more difficult to treat, a finding noted by other investigators, though the reason is not clear.20 It is known that the prevalence of onychomycosis is higher in males,2,5 but data comparing cure rates by gender is lacking. It has been suggested that men more frequently undergo nail trauma and tend to seek help for more advanced disease.20 Treatment compliance also may be an issue. In our study, mean nail involvement was similar among male and female participants treated with efinaconazole (36.7% and 35.6%, respectively). Treatment compliance was higher among females compared to males (93.0% vs 91.1%), with the lowest compliance rates seen in males in the vehicle group (where complete cure rates also were the lowest). The amount of study drug used was greater in males, possibly due to larger toenails, though toenail surface area was not measured. Although there is no evidence to suggest that male toenails grow quicker, as many factors can impact nail growth, they tend to be thicker. Patients with thick toenails may be less likely to achieve complete cure.20 It also is possible that male toenails take longer to grow out fully, and they may require a longer treatment course. The 52-week duration of these studies may not have allowed for full regrowth of the nails, despite mycologic cure. Indeed, continued improvement in cure rates in onychomycosis patients with longer treatment courses have been noted by other investigators.21
The current analysis revealed much lower baseline QOL scores in female onychomycosis patients compared to male patients. Given that target nail involvement at baseline was similar across both groups, this finding may be indicative of greater concern about their condition among females, supporting other views that onychomycosis has a greater impact on QOL in female patients. Similar scores reported across genders at week 52 likely reflects the greater efficacy seen in females.
Conclusion
Based on this subgroup analysis, once-daily application of efinaconazole topical solution 10% may provide a useful option in the treatment of mild to moderate onychomycosis, particularly in female patients. The greater improvement in nail condition concomitantly among females translates to higher overall treatment satisfaction.
Acknowledgment—The author thanks Brian Bulley, MSc, of Inergy Limited, Lindfield, West Sussex, United Kingdom, for medical writing support. Valeant Pharmaceuticals North America, LLC, funded Inergy’s activities pertaining to the manuscript.
Onychomycosis is the most common nail disease in adults, representing up to 50% of all nail disorders, and is nearly always associated with tinea pedis.1,2 Moreover, toenail onychomycosis frequently involves several nails3 and can be more challenging to treat because of the slow growth rate of nails and the difficult delivery of antifungal agents to the nail bed.3,4
The most prevalent predisposing risk factor for developing onychomycosis is advanced age, with a reported prevalence of 18.2% in patients aged 60 to 79 years compared to 0.7% in patients younger than 19 years.2 Men are up to 3 times more likely to develop onychomycosis than women, though the reasons for this gender difference are less clear.2,5 It has been hypothesized that occupational factors may play a role,2 with increased use of occlusive footwear and more frequent nail injuries contributing to a higher incidence of onychomycosis in males.6
Differences in hormone levels associated with gender also may result in different capacities to inhibit the growth of dermatophytes.2 The risk for developing onychomycosis increases with age at a similar rate in both genders.7
Although onychomycosis is more common in men, the disease has been shown to have a greater impact on quality of life (QOL) in women. Studies have shown that onychomycosis was more likely to cause embarrassment in women than in men (83% vs 71%; N=258), and women with onychomycosis felt severely embarrassed more often than men (44% vs 26%; N=258).8,9 Additionally, one study (N=43,593) showed statistically significant differences associated with gender among onychomycosis patients who reported experiencing pain (33.7% of women vs 26.7% of men; P<.001), discomfort in walking (43.1% vs 36.4%; P<.001), and embarrassment (28.8% vs 25.1%; P<.001).10 Severe cases of onychomycosis even appear to have a negative impact on patients’ intimate relationships, and lower self-esteem has been reported in female patients due to unsightly and contagious-looking nail plates.11,12 Socks and stockings frequently may be damaged due to the constant friction from diseased nails that are sharp and dystrophic.13,14 In one study, treatment satisfaction was related to improvement in nail condition; however, males tended to be more satisfied with the improvement than females. Females were significantly less satisfied than males based on QOL scores for discomfort in wearing shoes (61.5 vs 86.3; P=.001), restrictions in shoe options (59.0 vs 82.8; P=.001), and the need to conceal toenails (73.3 vs 89.3; P<.01).15
Numerous studies have assessed the effectiveness of antifungal drugs in treating onychomycosis; however, there are limited data available on the impact of gender on outcome variables. Results from 2 identical 52-week, prospective, multicenter, randomized, double-blind studies of a total of 1655 participants (age range, 18–70 years) assessing the safety and efficacy of efinaconazole topical solution 10% in the treatment of onychomycosis were reported in 2013.16 Here, a gender subgroup analysis for male and female participants with mild to moderate onychomycosis is presented.
Methods
Two 52-week, prospective, multicenter, randomized, double-blind, vehicle-controlled studies were designed to evaluate the efficacy, safety, and tolerability of efinaconazole topical solution 10% versus vehicle in 1655 participants aged 18 to 70 years with mild to moderate toenail onychomycosis. Participants who presented with 20% to 50% clinical involvement of the target toenail were randomized (3:1 ratio) to once-daily application of a blinded study drug on the toenails for 48 weeks, followed by a 4-week follow-up period.16
Efficacy Evaluation
The primary efficacy end point was complete cure, defined as 0% clinical involvement of target toenail and mycologic cure based on negative potassium hydroxide examination and negative fungal culture at week 52.16 Secondary and supportive efficacy end points included mycologic cure, treatment success (<10% clinical involvement of the target toenail), complete or almost complete cure (≤5% clinical involvement and mycologic cure), and change in QOL based on a self-administered QOL questionnaire. All secondary end points were assessed at week 52.16 All items in the QOL questionnaire were transferred to a 0 to 100 scale, with higher scores indicating better functioning.17
In both studies, treatment compliance was assessed through participant diaries that detailed all drug applications as well as the weight of returned product bottles. Participants were considered noncompliant if they missed more than 14 cumulative applications of the study drug in the 28 days leading up to the visit at week 48, if they missed more than 20% of the total number of expected study drug applications during the treatment period, and/or if they missed 28 or more consecutive applications of the study drug during the total treatment period.
Safety Evaluation
Safety assessments included monitoring and recording adverse events (AEs) until week 52.16
Results
The 2 studies included a total of 1275 (77.2%) male and 376 (22.8%) female participants with mild to moderate onychomycosis (intention-to-treat population). Pooled results are provided in this analysis.
At baseline, the mean area of target toenail involvement among male and female participants in the efinaconazole treatment group was 36.7% and 35.6%, respectively, compared to 36.4% and 37.9%, respectively, in the vehicle group. The mean number of affected nontarget toenails was 2.8 and 2.7 among male and female participants, respectively, in the efinaconazole group compared to 2.9 and 2.4, respectively, in the vehicle group (Table 1).
Female participants tended to be somewhat more compliant with treatment than male participants at study end. At week 52, 93.0% and 93.4% of female participants in the efinaconazole and vehicle groups, respectively, were considered compliant with treatment compared to 91.1% and 88.6% of male participants, respectively (Table 1).
Primary Efficacy End Point (Observed Case)
At week 52, 15.8% of male and 27.1% of female participants in the efinaconazole treatment group had a complete cure compared to 4.2% and 6.3%, respectively, of those in the vehicle group (both P<.001). Efinaconazole topical solution 10% was significantly more effective than vehicle from week 48 (P<.001 male and P=.004 female).
The differences in complete cure rates reported for male (15.8%) and female (27.1%) participants treated with efinaconazole topical solution 10% were significant at week 52 (P=.001)(Figure 1).
|
| Figure 1. Proportion of male and female participants treated with once-daily application of efinaconazole topical solution 10% who achieved complete cure from weeks 12 to 52 (observed case; intention-to-treat population; pooled data). |
|
| Figure 2. Treatment success (defined as ≤10% clinical involvement of the target toenail) at week 52. Comparison of results with efinaconazole topical solution 10% and vehicle (observed case; intention-to-treat population; pooled data). |
Secondary and Supportive Efficacy End Points (Observed Case)
At week 52, 53.7% of male participants and 64.8% of female participants in the efinaconazole group achieved mycologic cure compared to 14.8% and 22.5%, respectively, of those in the vehicle group (both P<.001). Mycologic cure in the efinaconazole group versus the vehicle group became statistically significant at week 12 in male participants (P=.002) and at week 24 in female participants (P<.001).
At week 52, more male and female participants in the efinaconazole group (24.9% and 36.8%, respectively) achieved complete or almost complete cure compared to those in the vehicle group (6.8% and 11.3%, respectively), and 43.5% and 59.1% of male and female participants, respectively, were considered treatment successes (≤10% clinical involvement of the target toenail) compared to 15.5% and 26.8%, respectively, in the vehicle group (all P<.001)(Figure 2).
Treatment satisfaction scores were higher among female participants. At week 52, the mean QOL assessment score among female participants in the efinaconazole group was 77.2 compared to 70.3 among male participants in the same group (43.0 and 41.2, respectively, in the vehicle group). All QOL assessment scores were lower (ie, worse) in female onychomycosis participants at baseline. Improvements in all QOL scores were much greater in female participants at week 52 (Table 2).
The total number of efinaconazole applications was similar among male and female participants (315.1 vs 316.7). The mean amount of efina- conazole applied was greater in male participants (50.4 g vs 45.6 g), and overall compliance rates, though similar, were slightly higher in females compared to males (efinaconazole only)(93.0% vs 91.1%).
Safety
Overall, AE rates for efinaconazole were similar to those reported for vehicle (65.3% vs 59.8%).16 Slightly more female participants reported 1 or more AE than males (71.3% vs 63.5%). Adverse events were generally mild (50.0% in females; 53.7% in males) or moderate (46.7% in females; 41.8% in males) in severity, were not related to the study drug (89.9% in females; 93.1% in males), and resolved without sequelae. The rate of discontinuation from AEs was low (2.8% in females; 2.5% in males).
Comment
Efinaconazole topical solution 10% was significantly more effective than vehicle in both male and female participants with mild to moderate onychomycosis. It appears to be especially effective in female participants, with more than 27% of female participants achieving complete cure at week 52, and nearly 37% of female participants achieving complete or almost complete cure at week 52.
Mycologic cure is the only consistently defined efficacy parameter reported in toenail onychomycosis studies.18 It often is considered the main treatment goal, with complete cure occurring somewhat later as the nails grow out.19 Indeed, in this subgroup analysis the differences seen between the active and vehicle groups correlated well with the cure rates seen at week 52. Interestingly, significantly better mycologic cure rates (P=.002, active vs vehicle) were seen as early as week 12 in the male subgroup.
The current analysis suggests that male onychomycosis patients may be more difficult to treat, a finding noted by other investigators, though the reason is not clear.20 It is known that the prevalence of onychomycosis is higher in males,2,5 but data comparing cure rates by gender is lacking. It has been suggested that men more frequently undergo nail trauma and tend to seek help for more advanced disease.20 Treatment compliance also may be an issue. In our study, mean nail involvement was similar among male and female participants treated with efinaconazole (36.7% and 35.6%, respectively). Treatment compliance was higher among females compared to males (93.0% vs 91.1%), with the lowest compliance rates seen in males in the vehicle group (where complete cure rates also were the lowest). The amount of study drug used was greater in males, possibly due to larger toenails, though toenail surface area was not measured. Although there is no evidence to suggest that male toenails grow quicker, as many factors can impact nail growth, they tend to be thicker. Patients with thick toenails may be less likely to achieve complete cure.20 It also is possible that male toenails take longer to grow out fully, and they may require a longer treatment course. The 52-week duration of these studies may not have allowed for full regrowth of the nails, despite mycologic cure. Indeed, continued improvement in cure rates in onychomycosis patients with longer treatment courses have been noted by other investigators.21
The current analysis revealed much lower baseline QOL scores in female onychomycosis patients compared to male patients. Given that target nail involvement at baseline was similar across both groups, this finding may be indicative of greater concern about their condition among females, supporting other views that onychomycosis has a greater impact on QOL in female patients. Similar scores reported across genders at week 52 likely reflects the greater efficacy seen in females.
Conclusion
Based on this subgroup analysis, once-daily application of efinaconazole topical solution 10% may provide a useful option in the treatment of mild to moderate onychomycosis, particularly in female patients. The greater improvement in nail condition concomitantly among females translates to higher overall treatment satisfaction.
Acknowledgment—The author thanks Brian Bulley, MSc, of Inergy Limited, Lindfield, West Sussex, United Kingdom, for medical writing support. Valeant Pharmaceuticals North America, LLC, funded Inergy’s activities pertaining to the manuscript.
1. Scher RK, Coppa LM. Advances in the diagnosis and treatment of onychomycosis. Hosp Med. 1998;34:11-20.
2. Gupta AK, Jain HC, Lynde CW, et al. Prevalence and epidemiology of onychomycosis in patients visiting physicians’ offices: a multicenter Canadian survey of 15,000 patients. J Am Acad Dermatol. 2000;43:244-248.
3. Finch JJ, Warshaw EM. Toenail onychomycosis: current and future treatment options. Dermatol Ther. 2007;20:31-46.
4. Kumar S, Kimball AB. New antifungal therapies for the treatment of onychomycosis. Expert Opin Investig Drugs. 2009;18:727-734.
5. Elewski BE, Charif MA. Prevalence of onychomycosis in patients attending a dermatology clinic in northeastern Ohio for other conditions. Arch Dermatol. 1997;133:1172-1173.
6. Araujo AJG, Bastos OMP, Souza MAJ, et al. Occurrence of onychomycosis among patients attended in dermatology offices in the city of Rio de Janeiro, Brazil. An Bras Dermatol. 2003;78:299-308.
7. Pierard G. Onychomycosis and other superficial fungal infections of the foot in the elderly: a Pan-European Survey. Dermatology. 2001;202:220-224.
8. Drake LA, Scher RK, Smith EB, et al. Effect of onychomycosis on quality of life. J Am Acad Dermatol. 1998;38(5, pt 1):702-704.
9. Kowalczuk-Zieleniec E, Nowicki E, Majkowicz M. Onychomycosis changes quality of life. J Eur Acad Dermatol Venereol. 2002;16(suppl 1):248.
10. Katsambas A, Abeck D, Haneke E, et al. The effects of foot disease on quality of life: results of the Achilles Project. J Eur Acad Dermatol Venereol. 2005;19:191-195.
11. Salgo PL, Daniel CR, Gupta AK, et al. Onychomycosis disease management. Medical Crossfire: Debates, Peer Exchange and Insights in Medicine. 2003;4:1-17.
12. Elewski BE. The effect of toenail onychomycosis on patient quality of life. Int J Dermatol. 1997;36:754-756.
13. Hay RJ. The future of onychomycosis therapy may involve a combination of approaches. Br J Dermatol. 2001;145:3-8.
14. Whittam LR, Hay RJ. The impact of onychomycosis on quality of life. Clin Exp Dermatol. 1997;22:87-89.
15. Stier DM, Gause D, Joseph WS, et al. Patient satisfaction with oral versus nonoral therapeutic approaches in onychomycosis. J Am Podiatr Med Assoc. 2001;91:521-527.
16. Elewski BE, Rich P, Pollak R, et al. Efinaconazole 10% solution in the treatment of toenail onychomycosis: two phase 3 multicenter, randomized, double-blind studies. J Am Acad Dermatol. 2013;68:600-608.
17. Tosti A, Elewski BE. Treatment of onychomycosis with efinaconazole 10% topical solution and quality of life. J Clin Aesthet Dermatol. 2014;7:25-30.
18. Werschler WP, Bondar G, Armstrong D. Assessing treatment outcomes in toenail onychomycosis clinical trials. Am J Clin Dermatol. 2004;5:145-152.
19. Gupta AK. Treatment of dermatophyte toenail onychomycosis in the United States: a pharmacoeconomic analysis. J Am Podiatr Med Assoc. 2002;92:272-286.
20. Sigurgeirsson B. Prognostic factors for cure following treatment of onychomycosis. J Eur Acad Dermatol Venereol. 2010;24:679-684.
21. Epstein E. How often does oral treatment of toenail onychomycosis produce a disease-free nail? an analysis of published data. Arch Dermatol. 1998;134:1551-1554.
1. Scher RK, Coppa LM. Advances in the diagnosis and treatment of onychomycosis. Hosp Med. 1998;34:11-20.
2. Gupta AK, Jain HC, Lynde CW, et al. Prevalence and epidemiology of onychomycosis in patients visiting physicians’ offices: a multicenter Canadian survey of 15,000 patients. J Am Acad Dermatol. 2000;43:244-248.
3. Finch JJ, Warshaw EM. Toenail onychomycosis: current and future treatment options. Dermatol Ther. 2007;20:31-46.
4. Kumar S, Kimball AB. New antifungal therapies for the treatment of onychomycosis. Expert Opin Investig Drugs. 2009;18:727-734.
5. Elewski BE, Charif MA. Prevalence of onychomycosis in patients attending a dermatology clinic in northeastern Ohio for other conditions. Arch Dermatol. 1997;133:1172-1173.
6. Araujo AJG, Bastos OMP, Souza MAJ, et al. Occurrence of onychomycosis among patients attended in dermatology offices in the city of Rio de Janeiro, Brazil. An Bras Dermatol. 2003;78:299-308.
7. Pierard G. Onychomycosis and other superficial fungal infections of the foot in the elderly: a Pan-European Survey. Dermatology. 2001;202:220-224.
8. Drake LA, Scher RK, Smith EB, et al. Effect of onychomycosis on quality of life. J Am Acad Dermatol. 1998;38(5, pt 1):702-704.
9. Kowalczuk-Zieleniec E, Nowicki E, Majkowicz M. Onychomycosis changes quality of life. J Eur Acad Dermatol Venereol. 2002;16(suppl 1):248.
10. Katsambas A, Abeck D, Haneke E, et al. The effects of foot disease on quality of life: results of the Achilles Project. J Eur Acad Dermatol Venereol. 2005;19:191-195.
11. Salgo PL, Daniel CR, Gupta AK, et al. Onychomycosis disease management. Medical Crossfire: Debates, Peer Exchange and Insights in Medicine. 2003;4:1-17.
12. Elewski BE. The effect of toenail onychomycosis on patient quality of life. Int J Dermatol. 1997;36:754-756.
13. Hay RJ. The future of onychomycosis therapy may involve a combination of approaches. Br J Dermatol. 2001;145:3-8.
14. Whittam LR, Hay RJ. The impact of onychomycosis on quality of life. Clin Exp Dermatol. 1997;22:87-89.
15. Stier DM, Gause D, Joseph WS, et al. Patient satisfaction with oral versus nonoral therapeutic approaches in onychomycosis. J Am Podiatr Med Assoc. 2001;91:521-527.
16. Elewski BE, Rich P, Pollak R, et al. Efinaconazole 10% solution in the treatment of toenail onychomycosis: two phase 3 multicenter, randomized, double-blind studies. J Am Acad Dermatol. 2013;68:600-608.
17. Tosti A, Elewski BE. Treatment of onychomycosis with efinaconazole 10% topical solution and quality of life. J Clin Aesthet Dermatol. 2014;7:25-30.
18. Werschler WP, Bondar G, Armstrong D. Assessing treatment outcomes in toenail onychomycosis clinical trials. Am J Clin Dermatol. 2004;5:145-152.
19. Gupta AK. Treatment of dermatophyte toenail onychomycosis in the United States: a pharmacoeconomic analysis. J Am Podiatr Med Assoc. 2002;92:272-286.
20. Sigurgeirsson B. Prognostic factors for cure following treatment of onychomycosis. J Eur Acad Dermatol Venereol. 2010;24:679-684.
21. Epstein E. How often does oral treatment of toenail onychomycosis produce a disease-free nail? an analysis of published data. Arch Dermatol. 1998;134:1551-1554.
Practice Points
- Men, particularly as they age, are more likely to develop onychomycosis.
- Treatment adherence may be a bigger issue among male patients.
- Onychomycosis in males may be more difficult to treat for a variety of reasons.
Preop chemo feasible for high-risk soft-tissue sarcomas
Preoperative chemotherapy is feasible for high-risk localized soft-tissue sarcomas of the limbs or superficial trunk, even with concurrent radiotherapy and even in selected elderly patients, investigators reported online Sept. 7 in Journal of Clinical Oncology.
Full-dose preoperative chemotherapy now can be offered and an excellent chemotherapeutic dose intensity now can be achieved with concomitant radiotherapy in cases “when surgical reasons suggest that major preoperative shrinkage may help,” said Dr. Elena Palassini of Istituto Nazionale dei Tumori, Bologna (Italy), and her associates in the Italian Sarcoma Group and Spanish Sarcoma Group.
The investigators already reported the efficacy results of their international phase III randomized clinical trial assessing preoperative chemotherapy (with or without radiotherapy, at the treating physician’s discretion). In the current analysis, they focused on the toxicity data for 303 of the trial participants, all of whom had high-grade, deep, large, adult-type soft-tissue sarcomas arising from the extremities or trunk wall.
The median patient age was 48 years (range, 15-79 years), and 13% of the study population was aged 65 years or older. A total of 152 received preoperative radiotherapy along with epirubicin plus ifosfamide.
“The most interesting clinical finding was the tolerability of the combination of preoperative chemotherapy and radiotherapy,” which is particularly remarkable because patients chosen for combination treatment had the largest tumors and the most challenging presentations, the investigators wrote.
Participants who received combination preoperative therapy showed “only limited worsening of toxicities” compared with those who had preoperative chemotherapy alone, Dr. Palassini and her associates said (J Clin Oncol. 2015 Sept. 7. doi: 10.1200/JCO.2015.62.9394).
Grade 3 or 4 thrombocytopenia was more frequent with combined therapy than with chemotherapy alone, but grade 4 leukopenia and grade 3 or 4 anemia were not. There were no cases of fatal toxicity, and the rate of wound complications was not significantly higher when radiotherapy was added to chemotherapy (17.1%) than when it was not (9.9%).
Even though some patients failed to complete all planned cycles of chemotherapy or experienced dose reductions or interruptions because of toxic effects, the overall median chemotherapeutic dose index remained “excellent” at greater than 90%. This was true even in patients aged 65 years and older, which “clearly suggests the possibility of selecting and treating at least a proportion of [older] patients in the adjuvant setting with full-dose regimens.” This finding is especially important because older patients comprise 30% of those newly diagnosed as having soft-tissue sarcoma, the investigators noted.
The authors did not identify a sponsor of this study. Dr. Palassini reported having no relevant financial disclosures, and her associates reported ties to numerous industry sources.
Preoperative chemotherapy is feasible for high-risk localized soft-tissue sarcomas of the limbs or superficial trunk, even with concurrent radiotherapy and even in selected elderly patients, investigators reported online Sept. 7 in Journal of Clinical Oncology.
Full-dose preoperative chemotherapy now can be offered and an excellent chemotherapeutic dose intensity now can be achieved with concomitant radiotherapy in cases “when surgical reasons suggest that major preoperative shrinkage may help,” said Dr. Elena Palassini of Istituto Nazionale dei Tumori, Bologna (Italy), and her associates in the Italian Sarcoma Group and Spanish Sarcoma Group.
The investigators already reported the efficacy results of their international phase III randomized clinical trial assessing preoperative chemotherapy (with or without radiotherapy, at the treating physician’s discretion). In the current analysis, they focused on the toxicity data for 303 of the trial participants, all of whom had high-grade, deep, large, adult-type soft-tissue sarcomas arising from the extremities or trunk wall.
The median patient age was 48 years (range, 15-79 years), and 13% of the study population was aged 65 years or older. A total of 152 received preoperative radiotherapy along with epirubicin plus ifosfamide.
“The most interesting clinical finding was the tolerability of the combination of preoperative chemotherapy and radiotherapy,” which is particularly remarkable because patients chosen for combination treatment had the largest tumors and the most challenging presentations, the investigators wrote.
Participants who received combination preoperative therapy showed “only limited worsening of toxicities” compared with those who had preoperative chemotherapy alone, Dr. Palassini and her associates said (J Clin Oncol. 2015 Sept. 7. doi: 10.1200/JCO.2015.62.9394).
Grade 3 or 4 thrombocytopenia was more frequent with combined therapy than with chemotherapy alone, but grade 4 leukopenia and grade 3 or 4 anemia were not. There were no cases of fatal toxicity, and the rate of wound complications was not significantly higher when radiotherapy was added to chemotherapy (17.1%) than when it was not (9.9%).
Even though some patients failed to complete all planned cycles of chemotherapy or experienced dose reductions or interruptions because of toxic effects, the overall median chemotherapeutic dose index remained “excellent” at greater than 90%. This was true even in patients aged 65 years and older, which “clearly suggests the possibility of selecting and treating at least a proportion of [older] patients in the adjuvant setting with full-dose regimens.” This finding is especially important because older patients comprise 30% of those newly diagnosed as having soft-tissue sarcoma, the investigators noted.
The authors did not identify a sponsor of this study. Dr. Palassini reported having no relevant financial disclosures, and her associates reported ties to numerous industry sources.
Preoperative chemotherapy is feasible for high-risk localized soft-tissue sarcomas of the limbs or superficial trunk, even with concurrent radiotherapy and even in selected elderly patients, investigators reported online Sept. 7 in Journal of Clinical Oncology.
Full-dose preoperative chemotherapy now can be offered and an excellent chemotherapeutic dose intensity now can be achieved with concomitant radiotherapy in cases “when surgical reasons suggest that major preoperative shrinkage may help,” said Dr. Elena Palassini of Istituto Nazionale dei Tumori, Bologna (Italy), and her associates in the Italian Sarcoma Group and Spanish Sarcoma Group.
The investigators already reported the efficacy results of their international phase III randomized clinical trial assessing preoperative chemotherapy (with or without radiotherapy, at the treating physician’s discretion). In the current analysis, they focused on the toxicity data for 303 of the trial participants, all of whom had high-grade, deep, large, adult-type soft-tissue sarcomas arising from the extremities or trunk wall.
The median patient age was 48 years (range, 15-79 years), and 13% of the study population was aged 65 years or older. A total of 152 received preoperative radiotherapy along with epirubicin plus ifosfamide.
“The most interesting clinical finding was the tolerability of the combination of preoperative chemotherapy and radiotherapy,” which is particularly remarkable because patients chosen for combination treatment had the largest tumors and the most challenging presentations, the investigators wrote.
Participants who received combination preoperative therapy showed “only limited worsening of toxicities” compared with those who had preoperative chemotherapy alone, Dr. Palassini and her associates said (J Clin Oncol. 2015 Sept. 7. doi: 10.1200/JCO.2015.62.9394).
Grade 3 or 4 thrombocytopenia was more frequent with combined therapy than with chemotherapy alone, but grade 4 leukopenia and grade 3 or 4 anemia were not. There were no cases of fatal toxicity, and the rate of wound complications was not significantly higher when radiotherapy was added to chemotherapy (17.1%) than when it was not (9.9%).
Even though some patients failed to complete all planned cycles of chemotherapy or experienced dose reductions or interruptions because of toxic effects, the overall median chemotherapeutic dose index remained “excellent” at greater than 90%. This was true even in patients aged 65 years and older, which “clearly suggests the possibility of selecting and treating at least a proportion of [older] patients in the adjuvant setting with full-dose regimens.” This finding is especially important because older patients comprise 30% of those newly diagnosed as having soft-tissue sarcoma, the investigators noted.
The authors did not identify a sponsor of this study. Dr. Palassini reported having no relevant financial disclosures, and her associates reported ties to numerous industry sources.
FROM JOURNAL OF CLINICAL ONCOLOGY
Key clinical point: Preoperative chemotherapy is feasible for high-risk localized soft-tissue sarcomas, even with concurrent radiotherapy.
Major finding: The overall median chemotherapeutic dose index was “excellent” at greater than 90%.
Data source: An analysis of toxicity data from a 5-year international phase III randomized trial involving 303 patients.
Disclosures: The authors did not identify a sponsor of this study. Dr. Palassini reported having no relevant financial disclosures, and her associates reported ties to numerous industry sources.
Prescription opioid overdoses targeted in new CDC program
The Centers for Disease Control and Prevention has launched a program aimed at helping states combat and prevent opioid drug overdoses.
The Prescription Drug Overdose: Prevention for States program will be launching in 16 states chosen in a competitive application process. The CDC is committing $20 million in fiscal year 2015, and each state will receive $750,000 to $1 million each year for the next 4 years to advance prevention in several areas, such as enhancing prescription drug–monitoring programs, putting prevention into action in communities nationwide, and investigating the connection between prescription opioid abuse and heroin use, the CDC said in a press release.
In 2013, 16,000 people died from prescription opioid overdoses, four times more than in 1999, with prescription of opioids increasing at the same rate over the same time. Despite more opioids being prescribed, the amount of pain Americans report has not changed. In addition, heroin deaths also have spiked, with the 8,000 heroin overdose deaths nearly three times as many as in 2010.
“The prescription drug overdose epidemic requires a multifaceted approach, and states are key partners in our efforts on the front lines to prevent overdose deaths. With this funding, states can improve their ability to track the problem, work with insurers to help providers make informed prescribing decisions, and take action to combat this epidemic,” U.S. Department of Health & Human Services Secretary Sylvia M. Burwell said in the release.
Find the full CDC press release here.
The Centers for Disease Control and Prevention has launched a program aimed at helping states combat and prevent opioid drug overdoses.
The Prescription Drug Overdose: Prevention for States program will be launching in 16 states chosen in a competitive application process. The CDC is committing $20 million in fiscal year 2015, and each state will receive $750,000 to $1 million each year for the next 4 years to advance prevention in several areas, such as enhancing prescription drug–monitoring programs, putting prevention into action in communities nationwide, and investigating the connection between prescription opioid abuse and heroin use, the CDC said in a press release.
In 2013, 16,000 people died from prescription opioid overdoses, four times more than in 1999, with prescription of opioids increasing at the same rate over the same time. Despite more opioids being prescribed, the amount of pain Americans report has not changed. In addition, heroin deaths also have spiked, with the 8,000 heroin overdose deaths nearly three times as many as in 2010.
“The prescription drug overdose epidemic requires a multifaceted approach, and states are key partners in our efforts on the front lines to prevent overdose deaths. With this funding, states can improve their ability to track the problem, work with insurers to help providers make informed prescribing decisions, and take action to combat this epidemic,” U.S. Department of Health & Human Services Secretary Sylvia M. Burwell said in the release.
Find the full CDC press release here.
The Centers for Disease Control and Prevention has launched a program aimed at helping states combat and prevent opioid drug overdoses.
The Prescription Drug Overdose: Prevention for States program will be launching in 16 states chosen in a competitive application process. The CDC is committing $20 million in fiscal year 2015, and each state will receive $750,000 to $1 million each year for the next 4 years to advance prevention in several areas, such as enhancing prescription drug–monitoring programs, putting prevention into action in communities nationwide, and investigating the connection between prescription opioid abuse and heroin use, the CDC said in a press release.
In 2013, 16,000 people died from prescription opioid overdoses, four times more than in 1999, with prescription of opioids increasing at the same rate over the same time. Despite more opioids being prescribed, the amount of pain Americans report has not changed. In addition, heroin deaths also have spiked, with the 8,000 heroin overdose deaths nearly three times as many as in 2010.
“The prescription drug overdose epidemic requires a multifaceted approach, and states are key partners in our efforts on the front lines to prevent overdose deaths. With this funding, states can improve their ability to track the problem, work with insurers to help providers make informed prescribing decisions, and take action to combat this epidemic,” U.S. Department of Health & Human Services Secretary Sylvia M. Burwell said in the release.
Find the full CDC press release here.
HDAC inhibitor approved for MM in EU
Photo courtesy of Novartis
The European Commission has approved panobinostat (Farydak) for use in combination with other agents to treat patients with relapsed and/or refractory
multiple myeloma (MM).
The histone deacetylase (HDAC) inhibitor is now approved, in combination with bortezomib and dexamethasone, to treat adults with MM who have received at least 2 prior treatment regimens, including bortezomib and an immunomodulatory agent (IMiD).
The approval marks the first time an HDAC inhibitor with epigenetic activity is available in the European Union (EU). The approval applies to all 28 EU member states plus Iceland, Norway, and Liechtenstein.
The European Commission approved panobinostat based on results of a subgroup analysis of 147 patients in the phase 3 PANORAMA-1 trial.
PANORAMA-1 was a randomized, double-blind, placebo-controlled trial of 768 MM patients. The study showed that, overall, panobinostat plus bortezomib and dexamethasone increased progression-free survival (PFS) by about 4 months when compared to placebo plus bortezomib and dexamethasone.
Full results of the PANORAMA-1 study were published in The Lancet Oncology last year. Results from the substudy of 147 patients were presented at ASCO 2015.
The 147 patients had relapsed or relapsed and refractory MM and had received 2 or more prior regimens, including bortezomib and an IMiD.
The median PFS benefit in this subgroup increased by 7.8 months in the panobinostat arm compared to the placebo arm. The median PFS was 12.5 months (n=73) and 4.7 months (n=74), respectively (hazard ratio=0.47).
Common grade 3/4 non-hematologic adverse events in the panobinostat arm and placebo arm, respectively, included diarrhea (33.3% vs 15.1%), asthenia/fatigue (26.4% vs 13.7%), and peripheral neuropathy (16.7% vs 6.8%).
The most common grade 3/4 hematologic events in the panobinostat arm and placebo arm, respectively, were thrombocytopenia (68.1% vs 44.4%), lymphopenia (48.6% vs 49.3%), and neutropenia (40.3% vs 16.4%).
Cardiac events (most frequently atrial fibrillation, tachycardia, palpitation, and sinus tachycardia) were reported in 17.6% of panobinostat-treated patients and 9.8% of placebo-treated patients. Syncope was reported in 6.0% and 2.4%, respectively.
The percentage of on-treatment deaths was similar in the panobinostat and placebo arms—6.9% and 6.8%, respectively. But on-treatment deaths not due to the study indication (MM) were reported in 6.8% and 3.2% of patients, respectively.
Panobinostat in combination with bortezomib and dexamethasone is also approved in the US, Chile, and Japan for certain patients with previously treated MM. The exact indication for panobinostat varies by country.
Photo courtesy of Novartis
The European Commission has approved panobinostat (Farydak) for use in combination with other agents to treat patients with relapsed and/or refractory
multiple myeloma (MM).
The histone deacetylase (HDAC) inhibitor is now approved, in combination with bortezomib and dexamethasone, to treat adults with MM who have received at least 2 prior treatment regimens, including bortezomib and an immunomodulatory agent (IMiD).
The approval marks the first time an HDAC inhibitor with epigenetic activity is available in the European Union (EU). The approval applies to all 28 EU member states plus Iceland, Norway, and Liechtenstein.
The European Commission approved panobinostat based on results of a subgroup analysis of 147 patients in the phase 3 PANORAMA-1 trial.
PANORAMA-1 was a randomized, double-blind, placebo-controlled trial of 768 MM patients. The study showed that, overall, panobinostat plus bortezomib and dexamethasone increased progression-free survival (PFS) by about 4 months when compared to placebo plus bortezomib and dexamethasone.
Full results of the PANORAMA-1 study were published in The Lancet Oncology last year. Results from the substudy of 147 patients were presented at ASCO 2015.
The 147 patients had relapsed or relapsed and refractory MM and had received 2 or more prior regimens, including bortezomib and an IMiD.
The median PFS benefit in this subgroup increased by 7.8 months in the panobinostat arm compared to the placebo arm. The median PFS was 12.5 months (n=73) and 4.7 months (n=74), respectively (hazard ratio=0.47).
Common grade 3/4 non-hematologic adverse events in the panobinostat arm and placebo arm, respectively, included diarrhea (33.3% vs 15.1%), asthenia/fatigue (26.4% vs 13.7%), and peripheral neuropathy (16.7% vs 6.8%).
The most common grade 3/4 hematologic events in the panobinostat arm and placebo arm, respectively, were thrombocytopenia (68.1% vs 44.4%), lymphopenia (48.6% vs 49.3%), and neutropenia (40.3% vs 16.4%).
Cardiac events (most frequently atrial fibrillation, tachycardia, palpitation, and sinus tachycardia) were reported in 17.6% of panobinostat-treated patients and 9.8% of placebo-treated patients. Syncope was reported in 6.0% and 2.4%, respectively.
The percentage of on-treatment deaths was similar in the panobinostat and placebo arms—6.9% and 6.8%, respectively. But on-treatment deaths not due to the study indication (MM) were reported in 6.8% and 3.2% of patients, respectively.
Panobinostat in combination with bortezomib and dexamethasone is also approved in the US, Chile, and Japan for certain patients with previously treated MM. The exact indication for panobinostat varies by country.
Photo courtesy of Novartis
The European Commission has approved panobinostat (Farydak) for use in combination with other agents to treat patients with relapsed and/or refractory
multiple myeloma (MM).
The histone deacetylase (HDAC) inhibitor is now approved, in combination with bortezomib and dexamethasone, to treat adults with MM who have received at least 2 prior treatment regimens, including bortezomib and an immunomodulatory agent (IMiD).
The approval marks the first time an HDAC inhibitor with epigenetic activity is available in the European Union (EU). The approval applies to all 28 EU member states plus Iceland, Norway, and Liechtenstein.
The European Commission approved panobinostat based on results of a subgroup analysis of 147 patients in the phase 3 PANORAMA-1 trial.
PANORAMA-1 was a randomized, double-blind, placebo-controlled trial of 768 MM patients. The study showed that, overall, panobinostat plus bortezomib and dexamethasone increased progression-free survival (PFS) by about 4 months when compared to placebo plus bortezomib and dexamethasone.
Full results of the PANORAMA-1 study were published in The Lancet Oncology last year. Results from the substudy of 147 patients were presented at ASCO 2015.
The 147 patients had relapsed or relapsed and refractory MM and had received 2 or more prior regimens, including bortezomib and an IMiD.
The median PFS benefit in this subgroup increased by 7.8 months in the panobinostat arm compared to the placebo arm. The median PFS was 12.5 months (n=73) and 4.7 months (n=74), respectively (hazard ratio=0.47).
Common grade 3/4 non-hematologic adverse events in the panobinostat arm and placebo arm, respectively, included diarrhea (33.3% vs 15.1%), asthenia/fatigue (26.4% vs 13.7%), and peripheral neuropathy (16.7% vs 6.8%).
The most common grade 3/4 hematologic events in the panobinostat arm and placebo arm, respectively, were thrombocytopenia (68.1% vs 44.4%), lymphopenia (48.6% vs 49.3%), and neutropenia (40.3% vs 16.4%).
Cardiac events (most frequently atrial fibrillation, tachycardia, palpitation, and sinus tachycardia) were reported in 17.6% of panobinostat-treated patients and 9.8% of placebo-treated patients. Syncope was reported in 6.0% and 2.4%, respectively.
The percentage of on-treatment deaths was similar in the panobinostat and placebo arms—6.9% and 6.8%, respectively. But on-treatment deaths not due to the study indication (MM) were reported in 6.8% and 3.2% of patients, respectively.
Panobinostat in combination with bortezomib and dexamethasone is also approved in the US, Chile, and Japan for certain patients with previously treated MM. The exact indication for panobinostat varies by country.
FDA expands use of antiplatelet agent
Image by Andre E.X. Brown
The US Food and Drug Administration (FDA) has expanded the approved use of the antiplatelet agent ticagrelor (Brilinta).
The FDA first approved ticagrelor in 2011 to reduce the rate of thrombotic cardiovascular events in patients with acute coronary syndrome (ACS).
Now, the agency has approved a 60 mg dose that can be used long-term. The 60 mg tablet is expected to be available in pharmacies by the end of this month.
The recommended dosing for ticagrelor is a loading dose of 180 mg, followed by 90 mg twice daily during the first year after the ACS event. The drug is combined with aspirin, typically at a loading dose of 325 mg, followed by a daily maintenance dose of 75-100 mg.
After 1 year, patients can now receive ticagrelor at 60 mg twice daily.
The expanded indication for ticagrelor has been approved under FDA Priority Review, a designation granted to medicines with the potential to provide significant improvements in the treatment, prevention, or diagnosis of a disease.
Ticagrelor has been approved in more than 100 countries and is included in 12 major ACS treatment guidelines globally. The drug is under development by AstraZeneca.
Trial results
The FDA’s expanded approval of ticagrelor is based on results of the PEGASUS TIMI-54 trial, a large-scale study involving more than 21,000 patients.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke. And the investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint.
At 3 years, the proportion of patients meeting the endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5% in the 90 mg group, 4.55% in the 60 mg group, and 0.79% in the placebo group (P<0.001 for both).
Image by Andre E.X. Brown
The US Food and Drug Administration (FDA) has expanded the approved use of the antiplatelet agent ticagrelor (Brilinta).
The FDA first approved ticagrelor in 2011 to reduce the rate of thrombotic cardiovascular events in patients with acute coronary syndrome (ACS).
Now, the agency has approved a 60 mg dose that can be used long-term. The 60 mg tablet is expected to be available in pharmacies by the end of this month.
The recommended dosing for ticagrelor is a loading dose of 180 mg, followed by 90 mg twice daily during the first year after the ACS event. The drug is combined with aspirin, typically at a loading dose of 325 mg, followed by a daily maintenance dose of 75-100 mg.
After 1 year, patients can now receive ticagrelor at 60 mg twice daily.
The expanded indication for ticagrelor has been approved under FDA Priority Review, a designation granted to medicines with the potential to provide significant improvements in the treatment, prevention, or diagnosis of a disease.
Ticagrelor has been approved in more than 100 countries and is included in 12 major ACS treatment guidelines globally. The drug is under development by AstraZeneca.
Trial results
The FDA’s expanded approval of ticagrelor is based on results of the PEGASUS TIMI-54 trial, a large-scale study involving more than 21,000 patients.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke. And the investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint.
At 3 years, the proportion of patients meeting the endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5% in the 90 mg group, 4.55% in the 60 mg group, and 0.79% in the placebo group (P<0.001 for both).
Image by Andre E.X. Brown
The US Food and Drug Administration (FDA) has expanded the approved use of the antiplatelet agent ticagrelor (Brilinta).
The FDA first approved ticagrelor in 2011 to reduce the rate of thrombotic cardiovascular events in patients with acute coronary syndrome (ACS).
Now, the agency has approved a 60 mg dose that can be used long-term. The 60 mg tablet is expected to be available in pharmacies by the end of this month.
The recommended dosing for ticagrelor is a loading dose of 180 mg, followed by 90 mg twice daily during the first year after the ACS event. The drug is combined with aspirin, typically at a loading dose of 325 mg, followed by a daily maintenance dose of 75-100 mg.
After 1 year, patients can now receive ticagrelor at 60 mg twice daily.
The expanded indication for ticagrelor has been approved under FDA Priority Review, a designation granted to medicines with the potential to provide significant improvements in the treatment, prevention, or diagnosis of a disease.
Ticagrelor has been approved in more than 100 countries and is included in 12 major ACS treatment guidelines globally. The drug is under development by AstraZeneca.
Trial results
The FDA’s expanded approval of ticagrelor is based on results of the PEGASUS TIMI-54 trial, a large-scale study involving more than 21,000 patients.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke. And the investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint.
At 3 years, the proportion of patients meeting the endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5% in the 90 mg group, 4.55% in the 60 mg group, and 0.79% in the placebo group (P<0.001 for both).
Fecal Microbiota Transplant for CDI
Symptomatic Clostridium difficile infection (CDI) results when C difficile, a gram‐positive bacillus that is an obligate‐anaerobe, produces cytotoxins TcdA and TcdB, causing epithelial and mucosal injury in the gastrointestinal tract.[1] Though it was first identified in 1978 as the causative agent of pseudomembranous colitis, and several effective treatments have subsequently been discovered,[2] nearly 3 decades later C difficile remains a major nosocomial pathogen. C difficile is the most frequent infectious cause of healthcare‐associated diarrhea and causes toxin mediated infection. The incidence of CDI in the United States has increased dramatically, especially in hospitals and nursing homes where there are now nearly 500,000 new cases and 30,000 deaths per year.[3, 4, 5, 6] This increased burden of disease is due both to the emergence of several strains that have led to a worldwide epidemic[7] and to a predilection for CDI in older adults, who constitute a growing proportion of hospitalized patients.[8] Ninety‐two percent of CDI‐related deaths occur in adults >65 years old,[9] and the risk of recurrent CDI is 2‐fold higher with each decade of life.[10] It is estimated that CDI is responsible for $1.5 billion in excess healthcare costs each year in the United States,[11] and that much of the additional cost and morbidity of CDI is due to recurrence, with around 83,000 cases per year.[6]
The human gut microbiota, which is a diverse ecosystem consisting of thousands of bacterial species,[12] protects against invasive pathogens such as C difficile.[13, 14] The pathogenesis of CDI requires disruption of the gut microbiota before onset of symptomatic disease,[15] and exposure to antibiotics is the most common precipitant (Figure 1).[16] Following exposure, the manifestations can vary from asymptomatic colonization, to a self‐limited diarrheal illness, to a fulminant, life‐threatening colitis.[1] Even among those who recover, recurrent disease is common.[10] A first recurrence will occur in 15% to 20% of successfully treated patients, a second recurrence will occur in 45% of those patients, and up to 5% of all patients enter a prolonged cycle of CDI with multiple recurrences.[17, 18, 19]
THE NEED FOR BETTER TREATMENT MODALITIES: RATIONALE
Conventional treatments (Table 1) utilize antibiotics with activity against C difficile,[20, 21] but these antibiotics have activity against other gut bacteria, limiting the ability of the microbiota to fully recover following CDI and predisposing patients to recurrence.[22] Traditional treatments for CDI result in a high incidence of recurrence (35%), with up to 65% of these patients who are again treated with conventional approaches developing a chronic pattern of recurrent CDI.[23] Though other factors may also explain why patients have recurrence (such as low serum antibody response to C difficile toxins,[24] use of medications such as proton pump inhibitors,[10] and the specific strain of C difficile causing infection[10, 21], restoration of the gut microbiome through fecal microbiota transplantation (FMT) is the treatment strategy that has garnered the most attention and has gained acceptance among practitioners in the treatment of recurrent CDI when conventional treatments have failed.[25] A review of the practices and evidence for use of FMT in the treatment of CDI in hospitalized patients is presented here, with recommendations shown in Table 2.
| Type of CDI | Associated Signs/Symptoms | Usual Treatment(s)[20] |
|---|---|---|
| ||
| Primary CDI, nonsevere | Diarrhea without signs of systemic infection, WBC 15,000 cells/mL, and serum creatinine 1.5 times the premorbid level | Metronidazole 500mg by mouth 3 times daily for 1014 days OR vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, severe | Signs of systemic infection and/or WBC15,000 cells/mL, or serum creatinine 1.5 times the premorbid level | vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, complicated | Signs of systemic infection including hypotension, ileus, or megacolon | vancomycin 500mg by mouth 4 times daily AND vancomycin 500mg by rectum 4 times daily AND intravenous metronidazole 500mg 3 times daily |
| Recurrent CDI | Return of symptoms with positive Clostridium difficile testing within 8 weeks of onset, but after initial symptoms resolved with treatment | First recurrence: same as initial treatment, based on severity. Second recurrence: Start treatment based on severity, followed by a vancomycin pulsed and/or tapered regimen over 6 or more weeks |
| Type of CDI | Recommendation on Use of FMT |
|---|---|
| |
| Primary CDI, nonsevere | Insufficient data on safety/efficacy to make a recommendation; effective conventional treatments exist |
| Primary CDI, severe | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Primary CDI, complicated | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Recurrent CDI (usually second recurrence) | Recommended based on data from case reports, systematic reviews, and 2 randomized, controlled clinical trials demonstrating safety and efficacy |
OVERVIEW OF FMT
FMT is not new to modern times, as there are reports of its use in ancient China for various purposes.[26] It was first described as a treatment for pseudomembranous colitis in the 1950s,[27] and in the past several years the use of FMT for CDI has increasingly gained acceptance as a safe and effective treatment. The optimal protocol for FMT is unknown; there are numerous published methods of stool preparation, infusion, and recipient and donor preparation. Diluents include tap water, normal saline, or even yogurt.[23, 28, 29] Sites of instillation of the stool include the stomach, small intestine, and large intestine.[23, 29, 30] Methods of recipient preparation for the infusion include cessation of antibiotic therapy for 24 to 48 hours prior to FMT, a bowel preparation or lavage, and use of antimotility agents, such as loperamide, to aid in retention of transplanted stool.[28] Donors may include friends or family members of the patients or 1 or more universal donors for an entire center. In both cases, screening for blood‐borne and fecal pathogens is performed before one can donate stool, though the tests performed vary between centers. FMT has been performed in both inpatient and outpatient settings, and a published study that instructed patients on self‐administration of fecal enema at home also demonstrated success.[30]
Although there are numerous variables to consider in designing a protocol, as discussed further below, it is encouraging that FMT appears to be highly effective regardless of the specific details of the protocol.[28] If the first procedure fails, evidence suggests a second or third treatment can be quite effective.[28] In a recent advance, successful FMT via administration of frozen stool oral capsules has been demonstrated,[31] which potentially removes many system‐ and patient‐level barriers to receipt of this treatment.
CLINICAL EVIDENCE FOR EFFICACY OF FMT IN TREATMENT OF CDI
Recurrent CDI
The clinical evidence for FMT is most robust for recurrent CDI, consisting of case reports or case series, recently aggregated by 2 large systematic reviews, as well as several clinical trials.[23, 29] Gough et al. published the larger of the 2 reviews with data from 317 patients treated via FMT for recurrent CDI,[23] including FMT via retention enema (35%), colonoscopic infusion (42%), and gastric infusion (23%). Though the authors noted differences in resolution proportions among routes of infusion, types of donors, and types of infusates, it is not possible to draw definite conclusions form these data given their anecdotal nature. Regardless of the specific protocol's details, 92% of patients in the review had resolution of recurrent CDI overall after 1 or more treatments, with 89% improving after only 1 treatment. Another systematic review of FMT, both for CDI and non‐CDI indications, reinforced its efficacy in CDI and overall benign safety profile.[32] Other individual case series and reports of FMT for CDI not included in these reviews have been published; they too demonstrate an excellent resolution rate.[33, 34, 35, 36, 37, 38] As with any case reports/series, generalizing from these data to arrive at conclusions about the safety and efficacy of FMT for CDI is limited by potential confounding and publication bias; thus, there emerged a need for high‐quality prospective trials.
The first randomized, controlled clinical trial (RCT) of FMT for recurrent CDI was reported in 2013.[39] Three treatment groups were compared: vancomycin for 5 days followed by FMT (n=16), vancomycin alone for 14 days (n=13), or vancomycin for 14 days with bowel lavage (n=13). Despite a strict definition of cure (absence of diarrhea or persistent diarrhea from another cause with 3 consecutive negative stool tests for C difficile toxin), the study was stopped early after an interim analysis due to resolution of CDI in 94% of patients in the FMT arm (81% after just 1 infusion) versus 23% to 31% in the others. Off‐protocol FMT was offered to the patients in the other 2 groups and 83% of them were also cured.
Youngster et al. conducted a pilot RCT with 10 patients in each group, where patients were randomized to receive FMT via either colonoscopy or nasogastric tube from a frozen fecal suspension, and no difference in efficacy was seen between administration routes, with an overall cure rate of 90%.[40] Subsequently, Youngster et al. conducted an open‐label noncomparative study with frozen fecal capsules for FMT in 20 patients with recurrent CDI.[31] Resolution occurred in 14 (70%) patients after a single treatment, and 4 of the 6 nonresponders had resolution upon retreatment for an overall efficacy of 90%.
Finally, Cammarota et al. conducted an open‐label RCT on FMT for recurrent CDI,[41] comparing FMT to a standard course of vancomycin for 10 days, followed by pulsed dosing every 2 to 3 days for 3 weeks. The study was stopped after a 1‐year interim analysis as 18 of 20 patients (90%) treated by FMT exhibited resolution of CDI‐associated diarrhea compared to only 5 of 19 patients (26%) in the vancomycin‐treated group (P0.001).
Primary and Severe CDI
There are few data on the use of FMT for primary, nonrecurrent CDI aside from a few case reports, which are included in the data presented above. A mathematical model of CDI in an intensive care unit assessed the role of FMT on primary CDI,[42] and predicted a decreased median incidence of recurrent CDI in patients treated with FMT for primary CDI. In addition to the general limitations inherent in any mathematical model, the study had specific assumptions for model parameters that limited generalizability, such as lack of incorporation of known risk factors for CDI and assumed immediate, persistent disruption of the microbiota after any antimicrobial exposure until FMT occurred.[43]
Lagier et al.[44] conducted a nonrandomized, open‐label, before and after prospective study comparing mortality between 2 intervention periods: conventional antibiotic treatment for CDI versus early FMT via nasogastric infusion. This shift happened due to clinical need, as their hospital in Marseille developed a ribotype 027 outbreak with a dramatic global mortality rate (50.8%). Mortality in the FMT group was significantly less (64.4% vs 18.8%, P0.01). This was an older cohort (mean age 84 years), suggesting that in an epidemic setting with a high mortality rate, early FMT may be beneficial, but one cannot extrapolate these data to support a position of early FMT for primary CDI in a nonepidemic setting.
Similarly, the evidence for use of FMT in severe CDI (defined in Table 1) consists of published case reports, which suggest efficacy.[45, 46, 47, 48] Similarly, the study by Lagier et al.[44] does not provide data on severity classification, but had a high mortality rate and found a benefit of FMT versus conventional therapy, suggesting that at least some patients presented with severe CDI and benefited. However, 1 documented death (discussed further below) following FMT for severe CDI highlights the need for caution before this treatment is used in that setting.[49]
Patient and Provider Perceptions Regarding Acceptability of FMT as a Treatment Option for CDI
A commonly cited reason for a limited role of FMT is the aesthetics of the treatment. However, few studies exist on the perceptions of patients and providers regarding FMT. Zipursky et al. surveyed 192 outpatients on their attitudes toward FMT using hypothetical case scenarios.[50] Only 1 patient had a history of CDI. The results were largely positive, with 81% of respondents agreeing to FMT for CDI. However, the need to handle stool and the nasogastric route of administration were identified as the most unappealing aspects of FMT. More respondents (90%, P=0.002) agreed to FMT when offered as a pill.
The same group of investigators undertook an electronic survey to examine physician attitudes toward FMT,[51] and found that 83 of 135 physicians (65%) in their sample had not offered or referred a patient for FMT. Frequent reasons for this included institutional barriers, concern that patients would find it too unappealing, and uncertainty regarding indications for FMT. Only 8% of physicians believed that patients would choose FMT if given the option. As the role of FMT in CDI continues to grow, it is likely that patient and provider perceptions and attitudes regarding this treatment will evolve to better align.
SAFETY OF FMT
Short‐term Complications
Serious adverse effects directly attributable to FMT in patients with normal immune function are uncommon. Symptoms of an irritable bowel (constipation, diarrhea, cramping, bloating) shortly after FMT are observed and usually last less than 48 hours.[23] A recent case series of immunocompromised patients (excluding those with inflammatory bowel disease [IBD]) treated for CDI with FMT did not find many adverse events in this group.[35] However, patients with IBD may have a different risk profile; the same case series noted adverse events occurred in 14% of IBD patients, who experienced disease flare requiring hospitalization in some cases.[35] No cases of septicemia or other infections were observed in this series. An increased risk of IBD flare, fever, and elevation in inflammatory markers following FMT has also been observed in other studies.[52, 53, 54] However, the interaction between IBD and the microbiome is complex, and a recent RCT for patients with ulcerative colitis (without CDI) treated via FMT did not show any significant adverse events.[55] FMT side effects may vary by the administration method and may be related to complications of the method itself rather than FMT (for example, misplacement of a nasogastric tube, perforation risk with colonoscopy).
Deaths following FMT are rare and often are not directly attributed to FMT. One reported death occurred as a result of aspiration pneumonia during sedation for colonoscopy for FMT.[35] In another case, a patient with severe CDI was treated with FMT, did not achieve cure, and developed toxic megacolon and shock, dying shortly after. The authors speculate that withdrawal of antibiotics with activity against CDI following FMT contributed to the outcome, rather than FMT itself.[49] FMT is largely untested in patients with severe CDI,[45, 46, 47, 48] and this fatal case of toxic megacolon warrants caution.
Long‐term Complications
The long‐term safety of FMT is unknown. There is an incomplete understanding of the interaction between the gut microbiome and the host, but this is a complex system, and associations with disease processes have been demonstrated. The gut microbiome may be associated with colon cancer, diabetes, obesity, and atopic disorders.[56] The role of FMT in contributing to these conditions is unknown. It is also not known whether targeted screening/selection of stool for infusion can mitigate these potential risks.
In the only study to capture long‐term outcomes after FMT, 77 patients were followed for 3 to 68 months (mean 17 months).[57] New conditions such as ovarian cancer, myocardial infarction, autoimmune disease, and stroke were observed. Although it is not possible to establish causality from this study or infer an increased risk of these conditions from FMT, the results underscore the need for long‐term follow‐up after FMT.
Regulatory Status
The increased use of FMT for CDI and interest in non‐CDI indications led the US Food and Drug Administration (FDA) in 2013 to publish an initial guidance statement regulating stool as a biologic agent.[58] However, subsequently, the United States Department of Health and Human Services' FDA issued guidance stating that it would exercise enforcement discretion for physicians administering FMT to treat patients with C difficile infections; thus, an investigational new drug approval is not required, but appropriate informed consent from the patient indicating that FMT is an investigational therapy is needed. Revision to this guidance is in progress.[59]
Future Directions
Expansion of the indications for FMT and use of synthetic and/or frozen stool are directions currently under active exploration. There are a number of clinical trials studying FMT for CDI underway that are not yet completed,[60, 61, 62, 63, 64, 65] and these may shed light on the safety and efficacy of FMT for primary CDI, severe CDI, and FMT as a preemptive therapy for high‐risk patients on antibiotics. Frozen stool preparations, often from a known set of prescreened donors and recently in capsule form, have been used for FMT and are gaining popularity.[31, 33] A synthetic intestinal microbiota suspension for use in FMT is currently being tested.[62] There also exists a nonprofit organization, OpenBiome (
CONCLUSIONS
Based on several prospective trials and observational data, FMT appears to be a safe and effective treatment for recurrent CDI that is superior to conventional approaches. Despite recent pivotal advances in the field of FMT, there remain many unanswered questions, and further research is needed to examine the optimal parameters, indications, and outcomes with FMT.
Disclosures
K.R. is supported by grants from the Claude D. Pepper Older Americans Independence Center (grant number AG‐024824) and the Michigan Institute for Clinical and Health Research (grant number 2UL1TR000433). N.S. is supported by a VA MERIT award. The contents of this article do not necessarily represent the views of the Department of Veterans Affairs. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors report no conflicts of interest.
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- , , , . Fecal microbiota transplantation for refractory Clostridium difficile colitis in solid organ transplant recipients. Am J Transplant. 2014;14(2):477–480.
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- US Food and Drug Administration. Guidance for industry: enforcement policy regarding investigational new drug requirements for use of fecal microbiota for transplantation to treat Clostridium difficile infection not responsive to standard therapies. Available at: http://www.fda.gov/biologicsbloodvaccines/guidancecomplianceregulatoryinformation/guidances/vaccines/ucm361379.htm. Accessed July 1, 2014.
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- University Health Network Toronto. Oral vancomycin followed by fecal transplant versus tapering oral vancomycin. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01226992. Available at: http://clinicaltrials.gov/ct2/show/NCT01226992. Accessed July 1, 2014.
- Tel‐Aviv Sourasky Medical Center. Transplantation of fecal microbiota for Clostridium difficile infection. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01958463. Available at: http://clinicaltrials.gov/ct2/show/NCT01958463. Accessed July 1, 2014.
- Rebiotix Inc. Microbiota restoration therapy for recurrent Clostridium difficile‐associated diarrhea (PUNCH CD). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01925417. Available at: http://clinicaltrials.gov/ct2/show/NCT01925417. Accessed July 1, 2014.
- Hadassah Medical Organization. Efficacy and safety of fecal microbiota transplantation for severe Clostridium difficile‐associated colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01959048. Available at: http://clinicaltrials.gov/ct2/show/NCT01959048. Accessed July 1, 2014.
- University Hospital Tuebingen. Fecal microbiota transplantation in recurrent or refractory Clostridium difficile colitis (TOCSIN). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01942447. Available at: http://clinicaltrials.gov/ct2/show/NCT01942447. Accessed July 1, 2014.
- Duke University. Stool transplants to treat refractory Clostridium difficile colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT02127398. Available at: http://clinicaltrials.gov/ct2/show/NCT02127398. Accessed July 1, 2014.
Symptomatic Clostridium difficile infection (CDI) results when C difficile, a gram‐positive bacillus that is an obligate‐anaerobe, produces cytotoxins TcdA and TcdB, causing epithelial and mucosal injury in the gastrointestinal tract.[1] Though it was first identified in 1978 as the causative agent of pseudomembranous colitis, and several effective treatments have subsequently been discovered,[2] nearly 3 decades later C difficile remains a major nosocomial pathogen. C difficile is the most frequent infectious cause of healthcare‐associated diarrhea and causes toxin mediated infection. The incidence of CDI in the United States has increased dramatically, especially in hospitals and nursing homes where there are now nearly 500,000 new cases and 30,000 deaths per year.[3, 4, 5, 6] This increased burden of disease is due both to the emergence of several strains that have led to a worldwide epidemic[7] and to a predilection for CDI in older adults, who constitute a growing proportion of hospitalized patients.[8] Ninety‐two percent of CDI‐related deaths occur in adults >65 years old,[9] and the risk of recurrent CDI is 2‐fold higher with each decade of life.[10] It is estimated that CDI is responsible for $1.5 billion in excess healthcare costs each year in the United States,[11] and that much of the additional cost and morbidity of CDI is due to recurrence, with around 83,000 cases per year.[6]
The human gut microbiota, which is a diverse ecosystem consisting of thousands of bacterial species,[12] protects against invasive pathogens such as C difficile.[13, 14] The pathogenesis of CDI requires disruption of the gut microbiota before onset of symptomatic disease,[15] and exposure to antibiotics is the most common precipitant (Figure 1).[16] Following exposure, the manifestations can vary from asymptomatic colonization, to a self‐limited diarrheal illness, to a fulminant, life‐threatening colitis.[1] Even among those who recover, recurrent disease is common.[10] A first recurrence will occur in 15% to 20% of successfully treated patients, a second recurrence will occur in 45% of those patients, and up to 5% of all patients enter a prolonged cycle of CDI with multiple recurrences.[17, 18, 19]
THE NEED FOR BETTER TREATMENT MODALITIES: RATIONALE
Conventional treatments (Table 1) utilize antibiotics with activity against C difficile,[20, 21] but these antibiotics have activity against other gut bacteria, limiting the ability of the microbiota to fully recover following CDI and predisposing patients to recurrence.[22] Traditional treatments for CDI result in a high incidence of recurrence (35%), with up to 65% of these patients who are again treated with conventional approaches developing a chronic pattern of recurrent CDI.[23] Though other factors may also explain why patients have recurrence (such as low serum antibody response to C difficile toxins,[24] use of medications such as proton pump inhibitors,[10] and the specific strain of C difficile causing infection[10, 21], restoration of the gut microbiome through fecal microbiota transplantation (FMT) is the treatment strategy that has garnered the most attention and has gained acceptance among practitioners in the treatment of recurrent CDI when conventional treatments have failed.[25] A review of the practices and evidence for use of FMT in the treatment of CDI in hospitalized patients is presented here, with recommendations shown in Table 2.
| Type of CDI | Associated Signs/Symptoms | Usual Treatment(s)[20] |
|---|---|---|
| ||
| Primary CDI, nonsevere | Diarrhea without signs of systemic infection, WBC 15,000 cells/mL, and serum creatinine 1.5 times the premorbid level | Metronidazole 500mg by mouth 3 times daily for 1014 days OR vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, severe | Signs of systemic infection and/or WBC15,000 cells/mL, or serum creatinine 1.5 times the premorbid level | vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, complicated | Signs of systemic infection including hypotension, ileus, or megacolon | vancomycin 500mg by mouth 4 times daily AND vancomycin 500mg by rectum 4 times daily AND intravenous metronidazole 500mg 3 times daily |
| Recurrent CDI | Return of symptoms with positive Clostridium difficile testing within 8 weeks of onset, but after initial symptoms resolved with treatment | First recurrence: same as initial treatment, based on severity. Second recurrence: Start treatment based on severity, followed by a vancomycin pulsed and/or tapered regimen over 6 or more weeks |
| Type of CDI | Recommendation on Use of FMT |
|---|---|
| |
| Primary CDI, nonsevere | Insufficient data on safety/efficacy to make a recommendation; effective conventional treatments exist |
| Primary CDI, severe | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Primary CDI, complicated | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Recurrent CDI (usually second recurrence) | Recommended based on data from case reports, systematic reviews, and 2 randomized, controlled clinical trials demonstrating safety and efficacy |
OVERVIEW OF FMT
FMT is not new to modern times, as there are reports of its use in ancient China for various purposes.[26] It was first described as a treatment for pseudomembranous colitis in the 1950s,[27] and in the past several years the use of FMT for CDI has increasingly gained acceptance as a safe and effective treatment. The optimal protocol for FMT is unknown; there are numerous published methods of stool preparation, infusion, and recipient and donor preparation. Diluents include tap water, normal saline, or even yogurt.[23, 28, 29] Sites of instillation of the stool include the stomach, small intestine, and large intestine.[23, 29, 30] Methods of recipient preparation for the infusion include cessation of antibiotic therapy for 24 to 48 hours prior to FMT, a bowel preparation or lavage, and use of antimotility agents, such as loperamide, to aid in retention of transplanted stool.[28] Donors may include friends or family members of the patients or 1 or more universal donors for an entire center. In both cases, screening for blood‐borne and fecal pathogens is performed before one can donate stool, though the tests performed vary between centers. FMT has been performed in both inpatient and outpatient settings, and a published study that instructed patients on self‐administration of fecal enema at home also demonstrated success.[30]
Although there are numerous variables to consider in designing a protocol, as discussed further below, it is encouraging that FMT appears to be highly effective regardless of the specific details of the protocol.[28] If the first procedure fails, evidence suggests a second or third treatment can be quite effective.[28] In a recent advance, successful FMT via administration of frozen stool oral capsules has been demonstrated,[31] which potentially removes many system‐ and patient‐level barriers to receipt of this treatment.
CLINICAL EVIDENCE FOR EFFICACY OF FMT IN TREATMENT OF CDI
Recurrent CDI
The clinical evidence for FMT is most robust for recurrent CDI, consisting of case reports or case series, recently aggregated by 2 large systematic reviews, as well as several clinical trials.[23, 29] Gough et al. published the larger of the 2 reviews with data from 317 patients treated via FMT for recurrent CDI,[23] including FMT via retention enema (35%), colonoscopic infusion (42%), and gastric infusion (23%). Though the authors noted differences in resolution proportions among routes of infusion, types of donors, and types of infusates, it is not possible to draw definite conclusions form these data given their anecdotal nature. Regardless of the specific protocol's details, 92% of patients in the review had resolution of recurrent CDI overall after 1 or more treatments, with 89% improving after only 1 treatment. Another systematic review of FMT, both for CDI and non‐CDI indications, reinforced its efficacy in CDI and overall benign safety profile.[32] Other individual case series and reports of FMT for CDI not included in these reviews have been published; they too demonstrate an excellent resolution rate.[33, 34, 35, 36, 37, 38] As with any case reports/series, generalizing from these data to arrive at conclusions about the safety and efficacy of FMT for CDI is limited by potential confounding and publication bias; thus, there emerged a need for high‐quality prospective trials.
The first randomized, controlled clinical trial (RCT) of FMT for recurrent CDI was reported in 2013.[39] Three treatment groups were compared: vancomycin for 5 days followed by FMT (n=16), vancomycin alone for 14 days (n=13), or vancomycin for 14 days with bowel lavage (n=13). Despite a strict definition of cure (absence of diarrhea or persistent diarrhea from another cause with 3 consecutive negative stool tests for C difficile toxin), the study was stopped early after an interim analysis due to resolution of CDI in 94% of patients in the FMT arm (81% after just 1 infusion) versus 23% to 31% in the others. Off‐protocol FMT was offered to the patients in the other 2 groups and 83% of them were also cured.
Youngster et al. conducted a pilot RCT with 10 patients in each group, where patients were randomized to receive FMT via either colonoscopy or nasogastric tube from a frozen fecal suspension, and no difference in efficacy was seen between administration routes, with an overall cure rate of 90%.[40] Subsequently, Youngster et al. conducted an open‐label noncomparative study with frozen fecal capsules for FMT in 20 patients with recurrent CDI.[31] Resolution occurred in 14 (70%) patients after a single treatment, and 4 of the 6 nonresponders had resolution upon retreatment for an overall efficacy of 90%.
Finally, Cammarota et al. conducted an open‐label RCT on FMT for recurrent CDI,[41] comparing FMT to a standard course of vancomycin for 10 days, followed by pulsed dosing every 2 to 3 days for 3 weeks. The study was stopped after a 1‐year interim analysis as 18 of 20 patients (90%) treated by FMT exhibited resolution of CDI‐associated diarrhea compared to only 5 of 19 patients (26%) in the vancomycin‐treated group (P0.001).
Primary and Severe CDI
There are few data on the use of FMT for primary, nonrecurrent CDI aside from a few case reports, which are included in the data presented above. A mathematical model of CDI in an intensive care unit assessed the role of FMT on primary CDI,[42] and predicted a decreased median incidence of recurrent CDI in patients treated with FMT for primary CDI. In addition to the general limitations inherent in any mathematical model, the study had specific assumptions for model parameters that limited generalizability, such as lack of incorporation of known risk factors for CDI and assumed immediate, persistent disruption of the microbiota after any antimicrobial exposure until FMT occurred.[43]
Lagier et al.[44] conducted a nonrandomized, open‐label, before and after prospective study comparing mortality between 2 intervention periods: conventional antibiotic treatment for CDI versus early FMT via nasogastric infusion. This shift happened due to clinical need, as their hospital in Marseille developed a ribotype 027 outbreak with a dramatic global mortality rate (50.8%). Mortality in the FMT group was significantly less (64.4% vs 18.8%, P0.01). This was an older cohort (mean age 84 years), suggesting that in an epidemic setting with a high mortality rate, early FMT may be beneficial, but one cannot extrapolate these data to support a position of early FMT for primary CDI in a nonepidemic setting.
Similarly, the evidence for use of FMT in severe CDI (defined in Table 1) consists of published case reports, which suggest efficacy.[45, 46, 47, 48] Similarly, the study by Lagier et al.[44] does not provide data on severity classification, but had a high mortality rate and found a benefit of FMT versus conventional therapy, suggesting that at least some patients presented with severe CDI and benefited. However, 1 documented death (discussed further below) following FMT for severe CDI highlights the need for caution before this treatment is used in that setting.[49]
Patient and Provider Perceptions Regarding Acceptability of FMT as a Treatment Option for CDI
A commonly cited reason for a limited role of FMT is the aesthetics of the treatment. However, few studies exist on the perceptions of patients and providers regarding FMT. Zipursky et al. surveyed 192 outpatients on their attitudes toward FMT using hypothetical case scenarios.[50] Only 1 patient had a history of CDI. The results were largely positive, with 81% of respondents agreeing to FMT for CDI. However, the need to handle stool and the nasogastric route of administration were identified as the most unappealing aspects of FMT. More respondents (90%, P=0.002) agreed to FMT when offered as a pill.
The same group of investigators undertook an electronic survey to examine physician attitudes toward FMT,[51] and found that 83 of 135 physicians (65%) in their sample had not offered or referred a patient for FMT. Frequent reasons for this included institutional barriers, concern that patients would find it too unappealing, and uncertainty regarding indications for FMT. Only 8% of physicians believed that patients would choose FMT if given the option. As the role of FMT in CDI continues to grow, it is likely that patient and provider perceptions and attitudes regarding this treatment will evolve to better align.
SAFETY OF FMT
Short‐term Complications
Serious adverse effects directly attributable to FMT in patients with normal immune function are uncommon. Symptoms of an irritable bowel (constipation, diarrhea, cramping, bloating) shortly after FMT are observed and usually last less than 48 hours.[23] A recent case series of immunocompromised patients (excluding those with inflammatory bowel disease [IBD]) treated for CDI with FMT did not find many adverse events in this group.[35] However, patients with IBD may have a different risk profile; the same case series noted adverse events occurred in 14% of IBD patients, who experienced disease flare requiring hospitalization in some cases.[35] No cases of septicemia or other infections were observed in this series. An increased risk of IBD flare, fever, and elevation in inflammatory markers following FMT has also been observed in other studies.[52, 53, 54] However, the interaction between IBD and the microbiome is complex, and a recent RCT for patients with ulcerative colitis (without CDI) treated via FMT did not show any significant adverse events.[55] FMT side effects may vary by the administration method and may be related to complications of the method itself rather than FMT (for example, misplacement of a nasogastric tube, perforation risk with colonoscopy).
Deaths following FMT are rare and often are not directly attributed to FMT. One reported death occurred as a result of aspiration pneumonia during sedation for colonoscopy for FMT.[35] In another case, a patient with severe CDI was treated with FMT, did not achieve cure, and developed toxic megacolon and shock, dying shortly after. The authors speculate that withdrawal of antibiotics with activity against CDI following FMT contributed to the outcome, rather than FMT itself.[49] FMT is largely untested in patients with severe CDI,[45, 46, 47, 48] and this fatal case of toxic megacolon warrants caution.
Long‐term Complications
The long‐term safety of FMT is unknown. There is an incomplete understanding of the interaction between the gut microbiome and the host, but this is a complex system, and associations with disease processes have been demonstrated. The gut microbiome may be associated with colon cancer, diabetes, obesity, and atopic disorders.[56] The role of FMT in contributing to these conditions is unknown. It is also not known whether targeted screening/selection of stool for infusion can mitigate these potential risks.
In the only study to capture long‐term outcomes after FMT, 77 patients were followed for 3 to 68 months (mean 17 months).[57] New conditions such as ovarian cancer, myocardial infarction, autoimmune disease, and stroke were observed. Although it is not possible to establish causality from this study or infer an increased risk of these conditions from FMT, the results underscore the need for long‐term follow‐up after FMT.
Regulatory Status
The increased use of FMT for CDI and interest in non‐CDI indications led the US Food and Drug Administration (FDA) in 2013 to publish an initial guidance statement regulating stool as a biologic agent.[58] However, subsequently, the United States Department of Health and Human Services' FDA issued guidance stating that it would exercise enforcement discretion for physicians administering FMT to treat patients with C difficile infections; thus, an investigational new drug approval is not required, but appropriate informed consent from the patient indicating that FMT is an investigational therapy is needed. Revision to this guidance is in progress.[59]
Future Directions
Expansion of the indications for FMT and use of synthetic and/or frozen stool are directions currently under active exploration. There are a number of clinical trials studying FMT for CDI underway that are not yet completed,[60, 61, 62, 63, 64, 65] and these may shed light on the safety and efficacy of FMT for primary CDI, severe CDI, and FMT as a preemptive therapy for high‐risk patients on antibiotics. Frozen stool preparations, often from a known set of prescreened donors and recently in capsule form, have been used for FMT and are gaining popularity.[31, 33] A synthetic intestinal microbiota suspension for use in FMT is currently being tested.[62] There also exists a nonprofit organization, OpenBiome (
CONCLUSIONS
Based on several prospective trials and observational data, FMT appears to be a safe and effective treatment for recurrent CDI that is superior to conventional approaches. Despite recent pivotal advances in the field of FMT, there remain many unanswered questions, and further research is needed to examine the optimal parameters, indications, and outcomes with FMT.
Disclosures
K.R. is supported by grants from the Claude D. Pepper Older Americans Independence Center (grant number AG‐024824) and the Michigan Institute for Clinical and Health Research (grant number 2UL1TR000433). N.S. is supported by a VA MERIT award. The contents of this article do not necessarily represent the views of the Department of Veterans Affairs. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors report no conflicts of interest.
Symptomatic Clostridium difficile infection (CDI) results when C difficile, a gram‐positive bacillus that is an obligate‐anaerobe, produces cytotoxins TcdA and TcdB, causing epithelial and mucosal injury in the gastrointestinal tract.[1] Though it was first identified in 1978 as the causative agent of pseudomembranous colitis, and several effective treatments have subsequently been discovered,[2] nearly 3 decades later C difficile remains a major nosocomial pathogen. C difficile is the most frequent infectious cause of healthcare‐associated diarrhea and causes toxin mediated infection. The incidence of CDI in the United States has increased dramatically, especially in hospitals and nursing homes where there are now nearly 500,000 new cases and 30,000 deaths per year.[3, 4, 5, 6] This increased burden of disease is due both to the emergence of several strains that have led to a worldwide epidemic[7] and to a predilection for CDI in older adults, who constitute a growing proportion of hospitalized patients.[8] Ninety‐two percent of CDI‐related deaths occur in adults >65 years old,[9] and the risk of recurrent CDI is 2‐fold higher with each decade of life.[10] It is estimated that CDI is responsible for $1.5 billion in excess healthcare costs each year in the United States,[11] and that much of the additional cost and morbidity of CDI is due to recurrence, with around 83,000 cases per year.[6]
The human gut microbiota, which is a diverse ecosystem consisting of thousands of bacterial species,[12] protects against invasive pathogens such as C difficile.[13, 14] The pathogenesis of CDI requires disruption of the gut microbiota before onset of symptomatic disease,[15] and exposure to antibiotics is the most common precipitant (Figure 1).[16] Following exposure, the manifestations can vary from asymptomatic colonization, to a self‐limited diarrheal illness, to a fulminant, life‐threatening colitis.[1] Even among those who recover, recurrent disease is common.[10] A first recurrence will occur in 15% to 20% of successfully treated patients, a second recurrence will occur in 45% of those patients, and up to 5% of all patients enter a prolonged cycle of CDI with multiple recurrences.[17, 18, 19]
THE NEED FOR BETTER TREATMENT MODALITIES: RATIONALE
Conventional treatments (Table 1) utilize antibiotics with activity against C difficile,[20, 21] but these antibiotics have activity against other gut bacteria, limiting the ability of the microbiota to fully recover following CDI and predisposing patients to recurrence.[22] Traditional treatments for CDI result in a high incidence of recurrence (35%), with up to 65% of these patients who are again treated with conventional approaches developing a chronic pattern of recurrent CDI.[23] Though other factors may also explain why patients have recurrence (such as low serum antibody response to C difficile toxins,[24] use of medications such as proton pump inhibitors,[10] and the specific strain of C difficile causing infection[10, 21], restoration of the gut microbiome through fecal microbiota transplantation (FMT) is the treatment strategy that has garnered the most attention and has gained acceptance among practitioners in the treatment of recurrent CDI when conventional treatments have failed.[25] A review of the practices and evidence for use of FMT in the treatment of CDI in hospitalized patients is presented here, with recommendations shown in Table 2.
| Type of CDI | Associated Signs/Symptoms | Usual Treatment(s)[20] |
|---|---|---|
| ||
| Primary CDI, nonsevere | Diarrhea without signs of systemic infection, WBC 15,000 cells/mL, and serum creatinine 1.5 times the premorbid level | Metronidazole 500mg by mouth 3 times daily for 1014 days OR vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, severe | Signs of systemic infection and/or WBC15,000 cells/mL, or serum creatinine 1.5 times the premorbid level | vancomycin 125mg by mouth 4 times daily for 1014 days OR fidaxomicin 200mg by mouth twice daily for 10 daysa |
| Primary CDI, complicated | Signs of systemic infection including hypotension, ileus, or megacolon | vancomycin 500mg by mouth 4 times daily AND vancomycin 500mg by rectum 4 times daily AND intravenous metronidazole 500mg 3 times daily |
| Recurrent CDI | Return of symptoms with positive Clostridium difficile testing within 8 weeks of onset, but after initial symptoms resolved with treatment | First recurrence: same as initial treatment, based on severity. Second recurrence: Start treatment based on severity, followed by a vancomycin pulsed and/or tapered regimen over 6 or more weeks |
| Type of CDI | Recommendation on Use of FMT |
|---|---|
| |
| Primary CDI, nonsevere | Insufficient data on safety/efficacy to make a recommendation; effective conventional treatments exist |
| Primary CDI, severe | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Primary CDI, complicated | Not recommended due to insufficient data on safety/efficacy with documented adverse events |
| Recurrent CDI (usually second recurrence) | Recommended based on data from case reports, systematic reviews, and 2 randomized, controlled clinical trials demonstrating safety and efficacy |
OVERVIEW OF FMT
FMT is not new to modern times, as there are reports of its use in ancient China for various purposes.[26] It was first described as a treatment for pseudomembranous colitis in the 1950s,[27] and in the past several years the use of FMT for CDI has increasingly gained acceptance as a safe and effective treatment. The optimal protocol for FMT is unknown; there are numerous published methods of stool preparation, infusion, and recipient and donor preparation. Diluents include tap water, normal saline, or even yogurt.[23, 28, 29] Sites of instillation of the stool include the stomach, small intestine, and large intestine.[23, 29, 30] Methods of recipient preparation for the infusion include cessation of antibiotic therapy for 24 to 48 hours prior to FMT, a bowel preparation or lavage, and use of antimotility agents, such as loperamide, to aid in retention of transplanted stool.[28] Donors may include friends or family members of the patients or 1 or more universal donors for an entire center. In both cases, screening for blood‐borne and fecal pathogens is performed before one can donate stool, though the tests performed vary between centers. FMT has been performed in both inpatient and outpatient settings, and a published study that instructed patients on self‐administration of fecal enema at home also demonstrated success.[30]
Although there are numerous variables to consider in designing a protocol, as discussed further below, it is encouraging that FMT appears to be highly effective regardless of the specific details of the protocol.[28] If the first procedure fails, evidence suggests a second or third treatment can be quite effective.[28] In a recent advance, successful FMT via administration of frozen stool oral capsules has been demonstrated,[31] which potentially removes many system‐ and patient‐level barriers to receipt of this treatment.
CLINICAL EVIDENCE FOR EFFICACY OF FMT IN TREATMENT OF CDI
Recurrent CDI
The clinical evidence for FMT is most robust for recurrent CDI, consisting of case reports or case series, recently aggregated by 2 large systematic reviews, as well as several clinical trials.[23, 29] Gough et al. published the larger of the 2 reviews with data from 317 patients treated via FMT for recurrent CDI,[23] including FMT via retention enema (35%), colonoscopic infusion (42%), and gastric infusion (23%). Though the authors noted differences in resolution proportions among routes of infusion, types of donors, and types of infusates, it is not possible to draw definite conclusions form these data given their anecdotal nature. Regardless of the specific protocol's details, 92% of patients in the review had resolution of recurrent CDI overall after 1 or more treatments, with 89% improving after only 1 treatment. Another systematic review of FMT, both for CDI and non‐CDI indications, reinforced its efficacy in CDI and overall benign safety profile.[32] Other individual case series and reports of FMT for CDI not included in these reviews have been published; they too demonstrate an excellent resolution rate.[33, 34, 35, 36, 37, 38] As with any case reports/series, generalizing from these data to arrive at conclusions about the safety and efficacy of FMT for CDI is limited by potential confounding and publication bias; thus, there emerged a need for high‐quality prospective trials.
The first randomized, controlled clinical trial (RCT) of FMT for recurrent CDI was reported in 2013.[39] Three treatment groups were compared: vancomycin for 5 days followed by FMT (n=16), vancomycin alone for 14 days (n=13), or vancomycin for 14 days with bowel lavage (n=13). Despite a strict definition of cure (absence of diarrhea or persistent diarrhea from another cause with 3 consecutive negative stool tests for C difficile toxin), the study was stopped early after an interim analysis due to resolution of CDI in 94% of patients in the FMT arm (81% after just 1 infusion) versus 23% to 31% in the others. Off‐protocol FMT was offered to the patients in the other 2 groups and 83% of them were also cured.
Youngster et al. conducted a pilot RCT with 10 patients in each group, where patients were randomized to receive FMT via either colonoscopy or nasogastric tube from a frozen fecal suspension, and no difference in efficacy was seen between administration routes, with an overall cure rate of 90%.[40] Subsequently, Youngster et al. conducted an open‐label noncomparative study with frozen fecal capsules for FMT in 20 patients with recurrent CDI.[31] Resolution occurred in 14 (70%) patients after a single treatment, and 4 of the 6 nonresponders had resolution upon retreatment for an overall efficacy of 90%.
Finally, Cammarota et al. conducted an open‐label RCT on FMT for recurrent CDI,[41] comparing FMT to a standard course of vancomycin for 10 days, followed by pulsed dosing every 2 to 3 days for 3 weeks. The study was stopped after a 1‐year interim analysis as 18 of 20 patients (90%) treated by FMT exhibited resolution of CDI‐associated diarrhea compared to only 5 of 19 patients (26%) in the vancomycin‐treated group (P0.001).
Primary and Severe CDI
There are few data on the use of FMT for primary, nonrecurrent CDI aside from a few case reports, which are included in the data presented above. A mathematical model of CDI in an intensive care unit assessed the role of FMT on primary CDI,[42] and predicted a decreased median incidence of recurrent CDI in patients treated with FMT for primary CDI. In addition to the general limitations inherent in any mathematical model, the study had specific assumptions for model parameters that limited generalizability, such as lack of incorporation of known risk factors for CDI and assumed immediate, persistent disruption of the microbiota after any antimicrobial exposure until FMT occurred.[43]
Lagier et al.[44] conducted a nonrandomized, open‐label, before and after prospective study comparing mortality between 2 intervention periods: conventional antibiotic treatment for CDI versus early FMT via nasogastric infusion. This shift happened due to clinical need, as their hospital in Marseille developed a ribotype 027 outbreak with a dramatic global mortality rate (50.8%). Mortality in the FMT group was significantly less (64.4% vs 18.8%, P0.01). This was an older cohort (mean age 84 years), suggesting that in an epidemic setting with a high mortality rate, early FMT may be beneficial, but one cannot extrapolate these data to support a position of early FMT for primary CDI in a nonepidemic setting.
Similarly, the evidence for use of FMT in severe CDI (defined in Table 1) consists of published case reports, which suggest efficacy.[45, 46, 47, 48] Similarly, the study by Lagier et al.[44] does not provide data on severity classification, but had a high mortality rate and found a benefit of FMT versus conventional therapy, suggesting that at least some patients presented with severe CDI and benefited. However, 1 documented death (discussed further below) following FMT for severe CDI highlights the need for caution before this treatment is used in that setting.[49]
Patient and Provider Perceptions Regarding Acceptability of FMT as a Treatment Option for CDI
A commonly cited reason for a limited role of FMT is the aesthetics of the treatment. However, few studies exist on the perceptions of patients and providers regarding FMT. Zipursky et al. surveyed 192 outpatients on their attitudes toward FMT using hypothetical case scenarios.[50] Only 1 patient had a history of CDI. The results were largely positive, with 81% of respondents agreeing to FMT for CDI. However, the need to handle stool and the nasogastric route of administration were identified as the most unappealing aspects of FMT. More respondents (90%, P=0.002) agreed to FMT when offered as a pill.
The same group of investigators undertook an electronic survey to examine physician attitudes toward FMT,[51] and found that 83 of 135 physicians (65%) in their sample had not offered or referred a patient for FMT. Frequent reasons for this included institutional barriers, concern that patients would find it too unappealing, and uncertainty regarding indications for FMT. Only 8% of physicians believed that patients would choose FMT if given the option. As the role of FMT in CDI continues to grow, it is likely that patient and provider perceptions and attitudes regarding this treatment will evolve to better align.
SAFETY OF FMT
Short‐term Complications
Serious adverse effects directly attributable to FMT in patients with normal immune function are uncommon. Symptoms of an irritable bowel (constipation, diarrhea, cramping, bloating) shortly after FMT are observed and usually last less than 48 hours.[23] A recent case series of immunocompromised patients (excluding those with inflammatory bowel disease [IBD]) treated for CDI with FMT did not find many adverse events in this group.[35] However, patients with IBD may have a different risk profile; the same case series noted adverse events occurred in 14% of IBD patients, who experienced disease flare requiring hospitalization in some cases.[35] No cases of septicemia or other infections were observed in this series. An increased risk of IBD flare, fever, and elevation in inflammatory markers following FMT has also been observed in other studies.[52, 53, 54] However, the interaction between IBD and the microbiome is complex, and a recent RCT for patients with ulcerative colitis (without CDI) treated via FMT did not show any significant adverse events.[55] FMT side effects may vary by the administration method and may be related to complications of the method itself rather than FMT (for example, misplacement of a nasogastric tube, perforation risk with colonoscopy).
Deaths following FMT are rare and often are not directly attributed to FMT. One reported death occurred as a result of aspiration pneumonia during sedation for colonoscopy for FMT.[35] In another case, a patient with severe CDI was treated with FMT, did not achieve cure, and developed toxic megacolon and shock, dying shortly after. The authors speculate that withdrawal of antibiotics with activity against CDI following FMT contributed to the outcome, rather than FMT itself.[49] FMT is largely untested in patients with severe CDI,[45, 46, 47, 48] and this fatal case of toxic megacolon warrants caution.
Long‐term Complications
The long‐term safety of FMT is unknown. There is an incomplete understanding of the interaction between the gut microbiome and the host, but this is a complex system, and associations with disease processes have been demonstrated. The gut microbiome may be associated with colon cancer, diabetes, obesity, and atopic disorders.[56] The role of FMT in contributing to these conditions is unknown. It is also not known whether targeted screening/selection of stool for infusion can mitigate these potential risks.
In the only study to capture long‐term outcomes after FMT, 77 patients were followed for 3 to 68 months (mean 17 months).[57] New conditions such as ovarian cancer, myocardial infarction, autoimmune disease, and stroke were observed. Although it is not possible to establish causality from this study or infer an increased risk of these conditions from FMT, the results underscore the need for long‐term follow‐up after FMT.
Regulatory Status
The increased use of FMT for CDI and interest in non‐CDI indications led the US Food and Drug Administration (FDA) in 2013 to publish an initial guidance statement regulating stool as a biologic agent.[58] However, subsequently, the United States Department of Health and Human Services' FDA issued guidance stating that it would exercise enforcement discretion for physicians administering FMT to treat patients with C difficile infections; thus, an investigational new drug approval is not required, but appropriate informed consent from the patient indicating that FMT is an investigational therapy is needed. Revision to this guidance is in progress.[59]
Future Directions
Expansion of the indications for FMT and use of synthetic and/or frozen stool are directions currently under active exploration. There are a number of clinical trials studying FMT for CDI underway that are not yet completed,[60, 61, 62, 63, 64, 65] and these may shed light on the safety and efficacy of FMT for primary CDI, severe CDI, and FMT as a preemptive therapy for high‐risk patients on antibiotics. Frozen stool preparations, often from a known set of prescreened donors and recently in capsule form, have been used for FMT and are gaining popularity.[31, 33] A synthetic intestinal microbiota suspension for use in FMT is currently being tested.[62] There also exists a nonprofit organization, OpenBiome (
CONCLUSIONS
Based on several prospective trials and observational data, FMT appears to be a safe and effective treatment for recurrent CDI that is superior to conventional approaches. Despite recent pivotal advances in the field of FMT, there remain many unanswered questions, and further research is needed to examine the optimal parameters, indications, and outcomes with FMT.
Disclosures
K.R. is supported by grants from the Claude D. Pepper Older Americans Independence Center (grant number AG‐024824) and the Michigan Institute for Clinical and Health Research (grant number 2UL1TR000433). N.S. is supported by a VA MERIT award. The contents of this article do not necessarily represent the views of the Department of Veterans Affairs. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. The authors report no conflicts of interest.
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- , , , , . Antibiotic‐associated pseudomembranous colitis due to toxin‐producing clostridia. N Engl J Med. 1978;298(10):531–534.
- , , ,, et al. Clostridium difficile infection in Ohio hospitals and nursing homes during 2006. Infect Control Hosp Epidemiol. 2009;30(6):526–533.
- , , , , . Attributable burden of hospital‐onset Clostridium difficile infection: a propensity score matching study. Infect Control Hosp Epidemiol. 2013;34(6):588–596.
- Centers for Disease Control and Prevention. Vital Signs. Making health care safer. Stopping C. difficile infections. Available at: http://www.cdc.gov/VitalSigns/Hai/StoppingCdifficile. Accessed January 15, 2015.
- , , , et al. Burden of Clostridium difficile infection in the United States. N Engl J Med. 2015;372(9):825–834.
- , , , et al. Emergence and global spread of epidemic healthcare‐associated Clostridium difficile. Nat Genet. 2013;45(1):109–113.
- , , , et al. Effect of age on treatment outcomes in Clostridium difficile infection. J Am Geriatr Soc. 2013;61(2):222–230.
- , , . Current status of Clostridium difficile infection epidemiology. Clin Infect Dis. 2012;55(suppl 2):S65–S70.
- , , , . Risk factors for recurrence, complications and mortality in Clostridium difficile infection: a systematic review. PLoS One. 2014;9(6):e98400.
- , , , et al. Health care‐associated infections: a meta‐analysis of costs and financial impact on the US health care system. JAMA Intern Med. 2013;173(22):2039–2046.
- , , , et al. Human gut microbiome viewed across age and geography. Nature. 2012;486(7402):222–227.
- , , . Colonization resistance of the digestive tract in conventional and antibiotic‐treated mice. Epidemiol Infect. 1971;69(03):405–411.
- , . Colonization resistance. Antimicrob Agents Chemother. 1994;38(3):409.
- , . Role of the intestinal microbiota in resistance to colonization by Clostridium difficile. Gastroenterol. 2014;146(6):1547–1553.
- , , , et al. Antibiotic‐induced shifts in the mouse gut microbiome and metabolome increase susceptibility to Clostridium difficile infection. Nat Commun. 2014;5:3114.
- . Fecal bacteriotherapy for recurrent Clostridium difficile infection. Anaerobe. 2009;15(6):285–289.
- , . Treatment of recurrent Clostridium difficile diarrhea. Gastroenterol Hepatol. 2006;2(3):203–208.
- , , , , , . Bacteriotherapy using fecal flora: toying with human motions. J Clin Gastroenterol. 2004;38(6):475–483.
- , , , et al. Clinical practice guidelines for Clostridium difficile infection in adults: 2010 update by the society for healthcare epidemiology of America (SHEA) and the infectious diseases society of America (IDSA). Infect Control Hosp Epidemiol. 2010;31(5):431–455.
- , , , et al. Fidaxomicin Versus Vancomycin for Clostridium difficile Infection: meta‐analysis of pivotal randomized controlled trials. Clin Infect Dis. 2012;55(suppl 2):S93–S103.
- , , , et al. Decreased diversity of the fecal microbiome in recurrent Clostridium difficile‐associated diarrhea. J Infect Dis. 2008;197(3):435–438.
- , , . Systematic review of intestinal microbiota transplantation (fecal bacteriotherapy) for recurrent Clostridium difficile infection. Clin Infect Dis. 2011;53(10):994–1002.
- , , , . Association between antibody response to toxin A and protection against recurrent Clostridium difficile diarrhoea. Lancet. 2001;357(9251):189–193.
- , , , , . Treatment approaches including fecal microbiota transplantation for recurrent Clostridium difficile infection (RCDI) among infectious disease physicians. Anaerobe. 2013;24:20–24.
- , , , , . Should we standardize the 1,700‐year‐old fecal microbiota transplantation? Am J Gastroenterol. 2012;107(11):1755.
- , , , . Fecal enema as an adjunct in the treatment of pseudomembranous enterocolitis. Surgery. 1958;44(5):854–859.
- , , , et al. Treating Clostridium difficile infection with fecal microbiota transplantation. Clin Gastroenterol Hepatol. 2011;9(12):1044–1049.
- , , , . Fecal microbiota transplantation for Clostridium difficile infection: systematic review and meta‐analysis. Am J Gastroenterol. 2013;108(4):500–508.
- , , . Success of self‐administered home fecal transplantation for chronic Clostridium difficile infection. Clin Gastroenterol Hepatol. 2010;8(5):471–473.
- , , , , , . Oral, Capsulized, frozen fecal microbiota transplantation for relapsing Clostridium difficile infection. JAMA. 2014;312(17):1772–1778.
- , , , et al. Systematic review: faecal microbiota transplantation therapy for digestive and nondigestive disorders in adults and children. Aliment Pharmacol Ther. 2014;39(10):1003–1032.
- , , , . Standardized frozen preparation for transplantation of fecal microbiota for recurrent Clostridium difficile Infection. Am J Gastroenterol. 2012;107(5):761–767.
- , , , . Fecal transplant via retention enema for refractory or recurrent Clostridium difficile infection. Arch Intern Med. 2012;172(2):191–193.
- , , , et al. Fecal microbiota transplant for treatment of Clostridium difficile infection in immunocompromised patients. Am J Gastroenterol. 2014;109(7):1065–1071.
- , , , et al. Efficacy of combined jejunal and colonic fecal microbiota transplantation for recurrent Clostridium difficile infection. Clin Gastroenterol Hepatol. 2014;12(9):1572–1576.
- , , , . Fecal microbiota transplantation for refractory Clostridium difficile colitis in solid organ transplant recipients. Am J Transplant. 2014;14(2):477–480.
- , , , , . Faecal microbiota transplantation and bacteriotherapy for recurrent Clostridium difficile infection: a retrospective evaluation of 31 patients. Scand J Infect Dis. 2014;46(2):89–97.
- , , , et al. Duodenal infusion of donor feces for recurrent Clostridium difficile. N Engl J Med. 2013;368(5):407–415.
- , , , et al. Fecal microbiota transplant for relapsing Clostridium difficile infection using a frozen inoculum from unrelated donors: a randomized, open‐label, controlled pilot study. Clin Infect Dis. 2014;58(11):1515–1522.
- , , , et al. Randomised clinical trial: faecal microbiota transplantation by colonoscopy vs. vancomycin for the treatment of recurrent Clostridium difficile infection. Aliment Pharmacol Ther. 2015;41(9):835–843.
- , , , , . A mathematical model to evaluate the routine use of fecal microbiota transplantation to prevent incident and recurrent Clostridium difficile infection. Infect Control Hosp Epidemiol. 2013;35(1):18–27.
- , , . Commentary: fecal microbiota therapy: ready for prime time? Infect Control Hosp Epidemiol. 2014;35(1):28–30.
- , , , et al. Dramatic reduction in Clostridium difficile ribotype 027‐associated mortality with early fecal transplantation by the nasogastric route: a preliminary report. Eur J Clin Microbiol Infect Dis. 2015;34(8):1597–1601.
- , , , , , . Fecal microbiota transplantation for fulminant Clostridium difficile infection in an allogeneic stem cell transplant patient. Transplant Infect Dis. 2012;14(6):E161–E165.
- , , , , , . Faecal microbiota transplantation for severe Clostridium difficile infection in the intensive care unit. Eur J Gastroenterol Hepatol. 2013;25(2):255–257.
- , , , . Successful colonoscopic fecal transplant for severe acute Clostridium difficile pseudomembranous colitis. Rev Gastroenterol Mex. 2011;77(1):40–42.
- , , . Successful treatment of fulminant Clostridium difficile infection with fecal bacteriotherapy. Ann Intern Med. 2008;148(8):632–633.
- , , , . Tempered enthusiasm for fecal transplant. Clin Infect Dis. 2014;59(2):319.
- , , , , . Patient attitudes toward the use of fecal microbiota transplantation in the treatment of recurrent Clostridium difficile infection. Clin Infect Dis. 2012;55(12):1652–1658.
- , , , , . Physician attitudes toward the use of fecal microbiota transplantation for the treatment of recurrent Clostridium difficile infection. Can J Gastroenterol Hepatol. 2014;28(6):319–324.
- , , . Transient flare of ulcerative colitis after fecal microbiota transplantation for recurrent Clostridium difficile infection. Clin Gastroenterol Hepatol. 2013;11(8):1036–1038.
- , , , et al. Temporal Bacterial Community Dynamics Vary Among Ulcerative Colitis Patients After Fecal Microbiota Transplantation. Am J Gastroenterol. 2013;108(10):1620–1630.
- , , , et al. Alteration of intestinal dysbiosis by fecal microbiota transplantation does not induce remission in patients with chronic active ulcerative colitis. Inflamm Bowel Dis. 2013;19(10):2155–2165.
- , , , et al. Findings from a randomized controlled trial of fecal transplantation for patients with ulcerative colitis. Gastroenterol. 2015;149(1):110–118.e4.
- , , , . Gut microbiota in health and disease. Physiol Rev. 2010;90(3):859–904.
- , , , et al. Long‐term follow‐up of colonoscopic fecal microbiota transplant for recurrent Clostridium difficile infection. Am J Gastroenterol. 2012;107(7):1079–1087.
- US Food and Drug Administration. Guidance for industry: enforcement policy regarding investigational new drug requirements for use of fecal microbiota for transplantation to treat Clostridium difficile infection not responsive to standard therapies. Available at: http://www.fda.gov/biologicsbloodvaccines/guidancecomplianceregulatoryinformation/guidances/vaccines/ucm361379.htm. Accessed July 1, 2014.
- US Food and Drug Administration. Draft guidance for industry: enforcement policy regarding investigational new drug requirements for use of fecal microbiota for transplantation to treat Clostridium difficile infection not responsive to standard therapies. Available at: http://www.fda.gov/biologicsbloodvaccines/guidancecomplianceregulatoryinformation/guidances/vaccines/ucm387023.htm. Accessed July 1, 2014.
- University Health Network Toronto. Oral vancomycin followed by fecal transplant versus tapering oral vancomycin. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01226992. Available at: http://clinicaltrials.gov/ct2/show/NCT01226992. Accessed July 1, 2014.
- Tel‐Aviv Sourasky Medical Center. Transplantation of fecal microbiota for Clostridium difficile infection. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01958463. Available at: http://clinicaltrials.gov/ct2/show/NCT01958463. Accessed July 1, 2014.
- Rebiotix Inc. Microbiota restoration therapy for recurrent Clostridium difficile‐associated diarrhea (PUNCH CD). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01925417. Available at: http://clinicaltrials.gov/ct2/show/NCT01925417. Accessed July 1, 2014.
- Hadassah Medical Organization. Efficacy and safety of fecal microbiota transplantation for severe Clostridium difficile‐associated colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01959048. Available at: http://clinicaltrials.gov/ct2/show/NCT01959048. Accessed July 1, 2014.
- University Hospital Tuebingen. Fecal microbiota transplantation in recurrent or refractory Clostridium difficile colitis (TOCSIN). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01942447. Available at: http://clinicaltrials.gov/ct2/show/NCT01942447. Accessed July 1, 2014.
- Duke University. Stool transplants to treat refractory Clostridium difficile colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT02127398. Available at: http://clinicaltrials.gov/ct2/show/NCT02127398. Accessed July 1, 2014.
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- , , , . Standardized frozen preparation for transplantation of fecal microbiota for recurrent Clostridium difficile Infection. Am J Gastroenterol. 2012;107(5):761–767.
- , , , . Fecal transplant via retention enema for refractory or recurrent Clostridium difficile infection. Arch Intern Med. 2012;172(2):191–193.
- , , , et al. Fecal microbiota transplant for treatment of Clostridium difficile infection in immunocompromised patients. Am J Gastroenterol. 2014;109(7):1065–1071.
- , , , et al. Efficacy of combined jejunal and colonic fecal microbiota transplantation for recurrent Clostridium difficile infection. Clin Gastroenterol Hepatol. 2014;12(9):1572–1576.
- , , , . Fecal microbiota transplantation for refractory Clostridium difficile colitis in solid organ transplant recipients. Am J Transplant. 2014;14(2):477–480.
- , , , , . Faecal microbiota transplantation and bacteriotherapy for recurrent Clostridium difficile infection: a retrospective evaluation of 31 patients. Scand J Infect Dis. 2014;46(2):89–97.
- , , , et al. Duodenal infusion of donor feces for recurrent Clostridium difficile. N Engl J Med. 2013;368(5):407–415.
- , , , et al. Fecal microbiota transplant for relapsing Clostridium difficile infection using a frozen inoculum from unrelated donors: a randomized, open‐label, controlled pilot study. Clin Infect Dis. 2014;58(11):1515–1522.
- , , , et al. Randomised clinical trial: faecal microbiota transplantation by colonoscopy vs. vancomycin for the treatment of recurrent Clostridium difficile infection. Aliment Pharmacol Ther. 2015;41(9):835–843.
- , , , , . A mathematical model to evaluate the routine use of fecal microbiota transplantation to prevent incident and recurrent Clostridium difficile infection. Infect Control Hosp Epidemiol. 2013;35(1):18–27.
- , , . Commentary: fecal microbiota therapy: ready for prime time? Infect Control Hosp Epidemiol. 2014;35(1):28–30.
- , , , et al. Dramatic reduction in Clostridium difficile ribotype 027‐associated mortality with early fecal transplantation by the nasogastric route: a preliminary report. Eur J Clin Microbiol Infect Dis. 2015;34(8):1597–1601.
- , , , , , . Fecal microbiota transplantation for fulminant Clostridium difficile infection in an allogeneic stem cell transplant patient. Transplant Infect Dis. 2012;14(6):E161–E165.
- , , , , , . Faecal microbiota transplantation for severe Clostridium difficile infection in the intensive care unit. Eur J Gastroenterol Hepatol. 2013;25(2):255–257.
- , , , . Successful colonoscopic fecal transplant for severe acute Clostridium difficile pseudomembranous colitis. Rev Gastroenterol Mex. 2011;77(1):40–42.
- , , . Successful treatment of fulminant Clostridium difficile infection with fecal bacteriotherapy. Ann Intern Med. 2008;148(8):632–633.
- , , , . Tempered enthusiasm for fecal transplant. Clin Infect Dis. 2014;59(2):319.
- , , , , . Patient attitudes toward the use of fecal microbiota transplantation in the treatment of recurrent Clostridium difficile infection. Clin Infect Dis. 2012;55(12):1652–1658.
- , , , , . Physician attitudes toward the use of fecal microbiota transplantation for the treatment of recurrent Clostridium difficile infection. Can J Gastroenterol Hepatol. 2014;28(6):319–324.
- , , . Transient flare of ulcerative colitis after fecal microbiota transplantation for recurrent Clostridium difficile infection. Clin Gastroenterol Hepatol. 2013;11(8):1036–1038.
- , , , et al. Temporal Bacterial Community Dynamics Vary Among Ulcerative Colitis Patients After Fecal Microbiota Transplantation. Am J Gastroenterol. 2013;108(10):1620–1630.
- , , , et al. Alteration of intestinal dysbiosis by fecal microbiota transplantation does not induce remission in patients with chronic active ulcerative colitis. Inflamm Bowel Dis. 2013;19(10):2155–2165.
- , , , et al. Findings from a randomized controlled trial of fecal transplantation for patients with ulcerative colitis. Gastroenterol. 2015;149(1):110–118.e4.
- , , , . Gut microbiota in health and disease. Physiol Rev. 2010;90(3):859–904.
- , , , et al. Long‐term follow‐up of colonoscopic fecal microbiota transplant for recurrent Clostridium difficile infection. Am J Gastroenterol. 2012;107(7):1079–1087.
- US Food and Drug Administration. Guidance for industry: enforcement policy regarding investigational new drug requirements for use of fecal microbiota for transplantation to treat Clostridium difficile infection not responsive to standard therapies. Available at: http://www.fda.gov/biologicsbloodvaccines/guidancecomplianceregulatoryinformation/guidances/vaccines/ucm361379.htm. Accessed July 1, 2014.
- US Food and Drug Administration. Draft guidance for industry: enforcement policy regarding investigational new drug requirements for use of fecal microbiota for transplantation to treat Clostridium difficile infection not responsive to standard therapies. Available at: http://www.fda.gov/biologicsbloodvaccines/guidancecomplianceregulatoryinformation/guidances/vaccines/ucm387023.htm. Accessed July 1, 2014.
- University Health Network Toronto. Oral vancomycin followed by fecal transplant versus tapering oral vancomycin. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01226992. Available at: http://clinicaltrials.gov/ct2/show/NCT01226992. Accessed July 1, 2014.
- Tel‐Aviv Sourasky Medical Center. Transplantation of fecal microbiota for Clostridium difficile infection. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01958463. Available at: http://clinicaltrials.gov/ct2/show/NCT01958463. Accessed July 1, 2014.
- Rebiotix Inc. Microbiota restoration therapy for recurrent Clostridium difficile‐associated diarrhea (PUNCH CD). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01925417. Available at: http://clinicaltrials.gov/ct2/show/NCT01925417. Accessed July 1, 2014.
- Hadassah Medical Organization. Efficacy and safety of fecal microbiota transplantation for severe Clostridium difficile‐associated colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01959048. Available at: http://clinicaltrials.gov/ct2/show/NCT01959048. Accessed July 1, 2014.
- University Hospital Tuebingen. Fecal microbiota transplantation in recurrent or refractory Clostridium difficile colitis (TOCSIN). Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT01942447. Available at: http://clinicaltrials.gov/ct2/show/NCT01942447. Accessed July 1, 2014.
- Duke University. Stool transplants to treat refractory Clostridium difficile colitis. Bethesda, MD: National Library of Medicine; 2000. NLM identifier: NCT02127398. Available at: http://clinicaltrials.gov/ct2/show/NCT02127398. Accessed July 1, 2014.