User login
For a time, an old drug helps with PFS in a head and neck cancer
Everolimus, a safe, cheap and well-tolerated drug, prolonged progression-free survival (PFS) compared with placebo during the year patients with advanced head and neck squamous cell carcinoma (HNSCC) were on it, a phase 2 study indicates.
However, once discontinued, the PFS advantage in favor of active therapy was no longer significant at 2 years, the same study suggests.
“The 5-year survival rate for advanced head and neck HPV [human papillomavirus]-negative smokers is dismal; hence the need for adjuvant therapy after a complete response to definitive therapy,” Cherie-Ann Nathan, MD, of Louisiana State University Health in Shreveport, Louisiana, said at the Multidisciplinary Head and Neck Cancer Symposium, sponsored by the American Society for Radiation Oncology.
“[Since] their survival rates have not changed in decades despite advances in surgery, radiation therapy, and chemotherapy, these findings indicate that patients at high risk for tumor relapse could be given mTOR inhibitors to stall progression and keep any residual cancer cells from growing,” she added in a statement.
Advanced HNSCC
The investigator-initiated trial randomly assigned 28 patients with advanced HNSCC to everolimus 10 mg orally once daily or placebo for a maximum of 1 year or until disease progression, whichever came first.
Patients had stage IV HNSCC but had to be disease-free clinically and radiologically following definitive treatment with chemoradiation or surgery followed by chemoradiation. There was no difference in the type of definitive treatment received prior to the intervention between the two groups.
Adjuvant therapy was initiated between 8 and 16 weeks after completing definitive therapy.
If patients had HPV-positive oropharyngeal cancer, they had to have a minimum of 10 pack-years of smoking history.
“The primary endpoint was PFS at 2 years; the secondary endpoint was toxicity,” Nathan observed.
Oral mucositis and leukopenia were common but only 7% of patients developed grade 3 mucositis or leukopenia.
Other grade 3 or greater toxicities were reported in 16 patients and were similar to the adverse events (AEs) noted in other trials with everolimus. Only two patients developed serious AEs possibly related to the drug.
At 1 year, 81% of patients on everolimus were disease-free compared with 57% of patients on placebo (P = .04), Nathan reported.
However, at 2 years, PFS – although continuing to favor those treated with adjuvant therapy – was no longer significant even though it was clear that during the year patients were receiving treatment, “there was a consistent, protective effect of everolimus,” Nathan suggested.
Special effect among TP53-mutated patients?
Targeted exon sequencing was also carried out, the results from which showed that TP53 was the most commonly mutated gene.
“As expected, HPV-negative tumors were more likely to be mutated for TP53,” Nathan observed. Approximately 80% of HPV-negative smoking-related HNSCC tumors carry the TP53 mutation.
Interestingly, survival rates were significantly higher in TP53-mutated patients treated with everolimus: 70% of the patients were still alive at 2 years compared with only 22% of placebo controls (P = .026), she said.
This is a surprising finding, Nathan suggested, as patients with TP53 mutations traditionally have worse survival than those without, suggesting that these patients in particular appear to benefit from adjuvant everolimus.
“Everolimus is used for patients with breast cancer or renal cell cancer for extended periods without major side effects and there is potential for patients with TP53-mutated head and neck disease to see a survival benefit as well,” Nathan speculated.
However, additional trials are needed to confirm the link between the TP53 mutation and survival and to assess the safety of keeping patients with HNSCC on an mTOR inhibitor for longer than 1 year.
The study was funded by Novartis. Nathan has disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Everolimus, a safe, cheap and well-tolerated drug, prolonged progression-free survival (PFS) compared with placebo during the year patients with advanced head and neck squamous cell carcinoma (HNSCC) were on it, a phase 2 study indicates.
However, once discontinued, the PFS advantage in favor of active therapy was no longer significant at 2 years, the same study suggests.
“The 5-year survival rate for advanced head and neck HPV [human papillomavirus]-negative smokers is dismal; hence the need for adjuvant therapy after a complete response to definitive therapy,” Cherie-Ann Nathan, MD, of Louisiana State University Health in Shreveport, Louisiana, said at the Multidisciplinary Head and Neck Cancer Symposium, sponsored by the American Society for Radiation Oncology.
“[Since] their survival rates have not changed in decades despite advances in surgery, radiation therapy, and chemotherapy, these findings indicate that patients at high risk for tumor relapse could be given mTOR inhibitors to stall progression and keep any residual cancer cells from growing,” she added in a statement.
Advanced HNSCC
The investigator-initiated trial randomly assigned 28 patients with advanced HNSCC to everolimus 10 mg orally once daily or placebo for a maximum of 1 year or until disease progression, whichever came first.
Patients had stage IV HNSCC but had to be disease-free clinically and radiologically following definitive treatment with chemoradiation or surgery followed by chemoradiation. There was no difference in the type of definitive treatment received prior to the intervention between the two groups.
Adjuvant therapy was initiated between 8 and 16 weeks after completing definitive therapy.
If patients had HPV-positive oropharyngeal cancer, they had to have a minimum of 10 pack-years of smoking history.
“The primary endpoint was PFS at 2 years; the secondary endpoint was toxicity,” Nathan observed.
Oral mucositis and leukopenia were common but only 7% of patients developed grade 3 mucositis or leukopenia.
Other grade 3 or greater toxicities were reported in 16 patients and were similar to the adverse events (AEs) noted in other trials with everolimus. Only two patients developed serious AEs possibly related to the drug.
At 1 year, 81% of patients on everolimus were disease-free compared with 57% of patients on placebo (P = .04), Nathan reported.
However, at 2 years, PFS – although continuing to favor those treated with adjuvant therapy – was no longer significant even though it was clear that during the year patients were receiving treatment, “there was a consistent, protective effect of everolimus,” Nathan suggested.
Special effect among TP53-mutated patients?
Targeted exon sequencing was also carried out, the results from which showed that TP53 was the most commonly mutated gene.
“As expected, HPV-negative tumors were more likely to be mutated for TP53,” Nathan observed. Approximately 80% of HPV-negative smoking-related HNSCC tumors carry the TP53 mutation.
Interestingly, survival rates were significantly higher in TP53-mutated patients treated with everolimus: 70% of the patients were still alive at 2 years compared with only 22% of placebo controls (P = .026), she said.
This is a surprising finding, Nathan suggested, as patients with TP53 mutations traditionally have worse survival than those without, suggesting that these patients in particular appear to benefit from adjuvant everolimus.
“Everolimus is used for patients with breast cancer or renal cell cancer for extended periods without major side effects and there is potential for patients with TP53-mutated head and neck disease to see a survival benefit as well,” Nathan speculated.
However, additional trials are needed to confirm the link between the TP53 mutation and survival and to assess the safety of keeping patients with HNSCC on an mTOR inhibitor for longer than 1 year.
The study was funded by Novartis. Nathan has disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Everolimus, a safe, cheap and well-tolerated drug, prolonged progression-free survival (PFS) compared with placebo during the year patients with advanced head and neck squamous cell carcinoma (HNSCC) were on it, a phase 2 study indicates.
However, once discontinued, the PFS advantage in favor of active therapy was no longer significant at 2 years, the same study suggests.
“The 5-year survival rate for advanced head and neck HPV [human papillomavirus]-negative smokers is dismal; hence the need for adjuvant therapy after a complete response to definitive therapy,” Cherie-Ann Nathan, MD, of Louisiana State University Health in Shreveport, Louisiana, said at the Multidisciplinary Head and Neck Cancer Symposium, sponsored by the American Society for Radiation Oncology.
“[Since] their survival rates have not changed in decades despite advances in surgery, radiation therapy, and chemotherapy, these findings indicate that patients at high risk for tumor relapse could be given mTOR inhibitors to stall progression and keep any residual cancer cells from growing,” she added in a statement.
Advanced HNSCC
The investigator-initiated trial randomly assigned 28 patients with advanced HNSCC to everolimus 10 mg orally once daily or placebo for a maximum of 1 year or until disease progression, whichever came first.
Patients had stage IV HNSCC but had to be disease-free clinically and radiologically following definitive treatment with chemoradiation or surgery followed by chemoradiation. There was no difference in the type of definitive treatment received prior to the intervention between the two groups.
Adjuvant therapy was initiated between 8 and 16 weeks after completing definitive therapy.
If patients had HPV-positive oropharyngeal cancer, they had to have a minimum of 10 pack-years of smoking history.
“The primary endpoint was PFS at 2 years; the secondary endpoint was toxicity,” Nathan observed.
Oral mucositis and leukopenia were common but only 7% of patients developed grade 3 mucositis or leukopenia.
Other grade 3 or greater toxicities were reported in 16 patients and were similar to the adverse events (AEs) noted in other trials with everolimus. Only two patients developed serious AEs possibly related to the drug.
At 1 year, 81% of patients on everolimus were disease-free compared with 57% of patients on placebo (P = .04), Nathan reported.
However, at 2 years, PFS – although continuing to favor those treated with adjuvant therapy – was no longer significant even though it was clear that during the year patients were receiving treatment, “there was a consistent, protective effect of everolimus,” Nathan suggested.
Special effect among TP53-mutated patients?
Targeted exon sequencing was also carried out, the results from which showed that TP53 was the most commonly mutated gene.
“As expected, HPV-negative tumors were more likely to be mutated for TP53,” Nathan observed. Approximately 80% of HPV-negative smoking-related HNSCC tumors carry the TP53 mutation.
Interestingly, survival rates were significantly higher in TP53-mutated patients treated with everolimus: 70% of the patients were still alive at 2 years compared with only 22% of placebo controls (P = .026), she said.
This is a surprising finding, Nathan suggested, as patients with TP53 mutations traditionally have worse survival than those without, suggesting that these patients in particular appear to benefit from adjuvant everolimus.
“Everolimus is used for patients with breast cancer or renal cell cancer for extended periods without major side effects and there is potential for patients with TP53-mutated head and neck disease to see a survival benefit as well,” Nathan speculated.
However, additional trials are needed to confirm the link between the TP53 mutation and survival and to assess the safety of keeping patients with HNSCC on an mTOR inhibitor for longer than 1 year.
The study was funded by Novartis. Nathan has disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
REPORTING FROM HEAD AND NECK CANCERS SYMPOSIUM 2020
HM20 course director influenced by POCUS, global health
Dr. Benji Mathews praises mentors for his SHM roles
Benji K. Mathews, MD, SFHM, CLHM, is chief of hospital medicine at Regions Hospital in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners. He is also the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), to be held April 16-18 in San Diego.
Dr. Mathews, an associate professor of medicine at the University of Minnesota, Minneapolis, is recognized by fellow hospitalists as a pioneer in the use of bedside ultrasound. In fact, his Certificate of Leadership in Hospital Medicine (CLHM) was completed with a focus on ultrasound in hospital medicine, and he is a Fellow in Diagnostic Safety through the Society to Improve Diagnosis in Medicine. “While a resident, I took an interest in the field of improving diagnosis and combined it with the 21st-century innovative tool of bedside ultrasound,” he said. “Now, I continue to teach clinicians, educators, and learners.”
In addition to his interest in POCUS and medical education, Dr. Mathews also has a passion for global health, rooted in a commitment to reducing health care disparities both locally and globally. He has worked with medical missions, nongovernmental organizations, and orphanages in Nepal, India, Bolivia, Honduras, and Costa Rica. This led him to complete the global health course at the University of Minnesota.
Dr. Mathews spent a few minutes with The Hospitalist to discuss his background and his new role of course director of the HM20 Annual Conference.
Can you describe your journey to becoming a hospitalist?
I’ve been a hospitalist for most of the last decade. I was fortunate to be a part of a great residency program at the University of Minnesota Medical School, which started a hospital medicine pathway that had several nationally recognized hospital medicine leaders as mentors. I was lucky to work with several of them through the HealthPartners organization in Saint Paul, and that developed in me a further desire to practice hospital medicine. The group and mentors provided opportunities to develop further niches in my practice, like bedside ultrasound.
How did you first get involved with SHM?
I entered SHM through the influence of mentors at HealthPartners, especially Burke Kealey, MD, SFHM, senior medical director for hospital specialties at HealthPartners Medical Group in Bloomington, Minn. and a past president of the Society, who encouraged me to participate on SHM committees. I eventually applied for the Annual Conference Committee, and somehow was accepted.
At that time, I was a community hospitalist among a lot of academic hospitalists. I thought that my voice could probably diversify the conversation, and bring the perspective of an early-career hospitalist to the discussion around educational offerings at the Annual Conference. I benefited from good mentorship on that committee, and with that experience I started getting involved with our local chapter in Minnesota. That was very important. I became our local chapter president and was able to combine my efforts with SHM nationally with our regional initiatives.
You have a particular interest in point-of-care ultrasound for hospitalists. How did that make its way into your involvement with SHM?
Point-of-care ultrasound and diagnostic error work really took off when I was a resident. My interest in that funneled naturally into the base curriculum of the Annual Conference, where once a year I could come together with 18 of my best hospitalist friends from across the nation to discuss curriculum. We talk about what content is applicable for frontline clinicians, what is right for early learners, and what innovations are coming in the future. Toward that last point, I was always involved as a judge or volunteer for the Research, Innovations and Clinical Vignettes – or RIV – competition at the Annual Conference. That’s the scientific abstract and poster competition at the conference. My interest grew to a point at which I decided to apply for one of the leadership roles in the RIV. I had the opportunity to serve as an Innovations Lead at RIV one year, and then chaired the overall RIV competition. Those opportunities helped me better understand the cutting-edge research that hospitalists should be aware of and which researchers and clinicians we should be in conversation with.
All these roles together have led me to my service as HM20 course director. I see myself as a lucky guy who has benefited from great mentorship, and I want to take advantage of my opportunities to serve.
We’ve been told that your elementary school–age children have learned to use ultrasound!
Well, they’ve learned how to use handheld ultrasound devices on each other. They’re able to find their siblings’ kidneys and hearts. I often show an image of this to encourage hospitalists that, if children can pick it up, highly educated providers can do the same and more.
To register for the Society of Hospital Medicine’s 2020 Annual Conference, please visit the HM20 Registration page.
Dr. Benji Mathews praises mentors for his SHM roles
Dr. Benji Mathews praises mentors for his SHM roles
Benji K. Mathews, MD, SFHM, CLHM, is chief of hospital medicine at Regions Hospital in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners. He is also the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), to be held April 16-18 in San Diego.
Dr. Mathews, an associate professor of medicine at the University of Minnesota, Minneapolis, is recognized by fellow hospitalists as a pioneer in the use of bedside ultrasound. In fact, his Certificate of Leadership in Hospital Medicine (CLHM) was completed with a focus on ultrasound in hospital medicine, and he is a Fellow in Diagnostic Safety through the Society to Improve Diagnosis in Medicine. “While a resident, I took an interest in the field of improving diagnosis and combined it with the 21st-century innovative tool of bedside ultrasound,” he said. “Now, I continue to teach clinicians, educators, and learners.”
In addition to his interest in POCUS and medical education, Dr. Mathews also has a passion for global health, rooted in a commitment to reducing health care disparities both locally and globally. He has worked with medical missions, nongovernmental organizations, and orphanages in Nepal, India, Bolivia, Honduras, and Costa Rica. This led him to complete the global health course at the University of Minnesota.
Dr. Mathews spent a few minutes with The Hospitalist to discuss his background and his new role of course director of the HM20 Annual Conference.
Can you describe your journey to becoming a hospitalist?
I’ve been a hospitalist for most of the last decade. I was fortunate to be a part of a great residency program at the University of Minnesota Medical School, which started a hospital medicine pathway that had several nationally recognized hospital medicine leaders as mentors. I was lucky to work with several of them through the HealthPartners organization in Saint Paul, and that developed in me a further desire to practice hospital medicine. The group and mentors provided opportunities to develop further niches in my practice, like bedside ultrasound.
How did you first get involved with SHM?
I entered SHM through the influence of mentors at HealthPartners, especially Burke Kealey, MD, SFHM, senior medical director for hospital specialties at HealthPartners Medical Group in Bloomington, Minn. and a past president of the Society, who encouraged me to participate on SHM committees. I eventually applied for the Annual Conference Committee, and somehow was accepted.
At that time, I was a community hospitalist among a lot of academic hospitalists. I thought that my voice could probably diversify the conversation, and bring the perspective of an early-career hospitalist to the discussion around educational offerings at the Annual Conference. I benefited from good mentorship on that committee, and with that experience I started getting involved with our local chapter in Minnesota. That was very important. I became our local chapter president and was able to combine my efforts with SHM nationally with our regional initiatives.
You have a particular interest in point-of-care ultrasound for hospitalists. How did that make its way into your involvement with SHM?
Point-of-care ultrasound and diagnostic error work really took off when I was a resident. My interest in that funneled naturally into the base curriculum of the Annual Conference, where once a year I could come together with 18 of my best hospitalist friends from across the nation to discuss curriculum. We talk about what content is applicable for frontline clinicians, what is right for early learners, and what innovations are coming in the future. Toward that last point, I was always involved as a judge or volunteer for the Research, Innovations and Clinical Vignettes – or RIV – competition at the Annual Conference. That’s the scientific abstract and poster competition at the conference. My interest grew to a point at which I decided to apply for one of the leadership roles in the RIV. I had the opportunity to serve as an Innovations Lead at RIV one year, and then chaired the overall RIV competition. Those opportunities helped me better understand the cutting-edge research that hospitalists should be aware of and which researchers and clinicians we should be in conversation with.
All these roles together have led me to my service as HM20 course director. I see myself as a lucky guy who has benefited from great mentorship, and I want to take advantage of my opportunities to serve.
We’ve been told that your elementary school–age children have learned to use ultrasound!
Well, they’ve learned how to use handheld ultrasound devices on each other. They’re able to find their siblings’ kidneys and hearts. I often show an image of this to encourage hospitalists that, if children can pick it up, highly educated providers can do the same and more.
To register for the Society of Hospital Medicine’s 2020 Annual Conference, please visit the HM20 Registration page.
Benji K. Mathews, MD, SFHM, CLHM, is chief of hospital medicine at Regions Hospital in St. Paul, Minn., and director of point of care ultrasound (POCUS) for hospital medicine at HealthPartners. He is also the course director for the Society of Hospital Medicine’s 2020 Annual Conference (HM20), to be held April 16-18 in San Diego.
Dr. Mathews, an associate professor of medicine at the University of Minnesota, Minneapolis, is recognized by fellow hospitalists as a pioneer in the use of bedside ultrasound. In fact, his Certificate of Leadership in Hospital Medicine (CLHM) was completed with a focus on ultrasound in hospital medicine, and he is a Fellow in Diagnostic Safety through the Society to Improve Diagnosis in Medicine. “While a resident, I took an interest in the field of improving diagnosis and combined it with the 21st-century innovative tool of bedside ultrasound,” he said. “Now, I continue to teach clinicians, educators, and learners.”
In addition to his interest in POCUS and medical education, Dr. Mathews also has a passion for global health, rooted in a commitment to reducing health care disparities both locally and globally. He has worked with medical missions, nongovernmental organizations, and orphanages in Nepal, India, Bolivia, Honduras, and Costa Rica. This led him to complete the global health course at the University of Minnesota.
Dr. Mathews spent a few minutes with The Hospitalist to discuss his background and his new role of course director of the HM20 Annual Conference.
Can you describe your journey to becoming a hospitalist?
I’ve been a hospitalist for most of the last decade. I was fortunate to be a part of a great residency program at the University of Minnesota Medical School, which started a hospital medicine pathway that had several nationally recognized hospital medicine leaders as mentors. I was lucky to work with several of them through the HealthPartners organization in Saint Paul, and that developed in me a further desire to practice hospital medicine. The group and mentors provided opportunities to develop further niches in my practice, like bedside ultrasound.
How did you first get involved with SHM?
I entered SHM through the influence of mentors at HealthPartners, especially Burke Kealey, MD, SFHM, senior medical director for hospital specialties at HealthPartners Medical Group in Bloomington, Minn. and a past president of the Society, who encouraged me to participate on SHM committees. I eventually applied for the Annual Conference Committee, and somehow was accepted.
At that time, I was a community hospitalist among a lot of academic hospitalists. I thought that my voice could probably diversify the conversation, and bring the perspective of an early-career hospitalist to the discussion around educational offerings at the Annual Conference. I benefited from good mentorship on that committee, and with that experience I started getting involved with our local chapter in Minnesota. That was very important. I became our local chapter president and was able to combine my efforts with SHM nationally with our regional initiatives.
You have a particular interest in point-of-care ultrasound for hospitalists. How did that make its way into your involvement with SHM?
Point-of-care ultrasound and diagnostic error work really took off when I was a resident. My interest in that funneled naturally into the base curriculum of the Annual Conference, where once a year I could come together with 18 of my best hospitalist friends from across the nation to discuss curriculum. We talk about what content is applicable for frontline clinicians, what is right for early learners, and what innovations are coming in the future. Toward that last point, I was always involved as a judge or volunteer for the Research, Innovations and Clinical Vignettes – or RIV – competition at the Annual Conference. That’s the scientific abstract and poster competition at the conference. My interest grew to a point at which I decided to apply for one of the leadership roles in the RIV. I had the opportunity to serve as an Innovations Lead at RIV one year, and then chaired the overall RIV competition. Those opportunities helped me better understand the cutting-edge research that hospitalists should be aware of and which researchers and clinicians we should be in conversation with.
All these roles together have led me to my service as HM20 course director. I see myself as a lucky guy who has benefited from great mentorship, and I want to take advantage of my opportunities to serve.
We’ve been told that your elementary school–age children have learned to use ultrasound!
Well, they’ve learned how to use handheld ultrasound devices on each other. They’re able to find their siblings’ kidneys and hearts. I often show an image of this to encourage hospitalists that, if children can pick it up, highly educated providers can do the same and more.
To register for the Society of Hospital Medicine’s 2020 Annual Conference, please visit the HM20 Registration page.
RA magnifies fragility fracture risk in ESRD
MAUI, HAWAII – Comorbid rheumatoid arthritis is a force multiplier for fragility fracture risk in patients with end-stage renal disease, Renée Peterkin-McCalman, MD, reported at the 2020 Rheumatology Winter Clinical Symposium.
“Patients with RA and ESRD are at substantially increased risk of osteoporotic fragility fractures compared to the overall population of ESRD patients. So fracture prevention prior to initiation of dialysis should be a focus of care in patients with RA,” said Dr. Peterkin-McCalman, a rheumatology fellow at the Medical College of Georgia, Augusta.
She presented a retrospective cohort study of 10,706 adults who initiated hemodialysis or peritoneal dialysis for ESRD during 2005-2008, including 1,040 who also had RA. All subjects were drawn from the United States Renal Data System. The impetus for the study, Dr. Peterkin-McCalman explained in an interview, was that although prior studies have established that RA and ESRD are independent risk factors for osteoporotic fractures, the interplay between the two was previously unknown.
The risk of incident osteoporotic fractures during the first 3 years after going on renal dialysis was 14.7% in patients with ESRD only, vaulting to 25.6% in those with comorbid RA. Individuals with both RA and ESRD were at an adjusted 1.83-fold increased overall risk for new fragility fractures and at 1.85-fold increased risk for hip fracture, compared to those without RA.
Far and away the strongest risk factor for incident osteoporotic fractures in the group with RA plus ESRD was a history of a fracture sustained within 5 years prior to initiation of dialysis, with an associated 11.5-fold increased fracture risk overall and an 8.2-fold increased risk of hip fracture.
“The reason that’s important is we don’t really have any medications to reduce fracture risk once you get to ESRD. Of course, we have bisphosphonates and Prolia (denosumab) and things like that, but that’s in patients with milder CKD [chronic kidney disease] or no renal disease at all. So the goal is to identify the patients early who are at higher risk so that we can protect those bones before they get to ESRD and we have nothing left to treat them with,” she said.
In addition to a history of prevalent fracture prior to starting ESRD, the other risk factors for fracture in patients with ESRD and comorbid RA Dr. Peterkin-McCalman identified in her study included age greater than 50 years at the start of dialysis and female gender, which was associated with a twofold greater fracture risk than in men. Black patients with ESRD and RA were 64% less likely than whites to experience an incident fragility fracture. And the fracture risk was higher in patients on hemodialysis than with peritoneal dialysis.
Her study was supported by the Medical College of Georgia and a research grant from Dialysis Clinic Inc.
SOURCE: Peterkin-McCalman R et al. RWCS 2020.
MAUI, HAWAII – Comorbid rheumatoid arthritis is a force multiplier for fragility fracture risk in patients with end-stage renal disease, Renée Peterkin-McCalman, MD, reported at the 2020 Rheumatology Winter Clinical Symposium.
“Patients with RA and ESRD are at substantially increased risk of osteoporotic fragility fractures compared to the overall population of ESRD patients. So fracture prevention prior to initiation of dialysis should be a focus of care in patients with RA,” said Dr. Peterkin-McCalman, a rheumatology fellow at the Medical College of Georgia, Augusta.
She presented a retrospective cohort study of 10,706 adults who initiated hemodialysis or peritoneal dialysis for ESRD during 2005-2008, including 1,040 who also had RA. All subjects were drawn from the United States Renal Data System. The impetus for the study, Dr. Peterkin-McCalman explained in an interview, was that although prior studies have established that RA and ESRD are independent risk factors for osteoporotic fractures, the interplay between the two was previously unknown.
The risk of incident osteoporotic fractures during the first 3 years after going on renal dialysis was 14.7% in patients with ESRD only, vaulting to 25.6% in those with comorbid RA. Individuals with both RA and ESRD were at an adjusted 1.83-fold increased overall risk for new fragility fractures and at 1.85-fold increased risk for hip fracture, compared to those without RA.
Far and away the strongest risk factor for incident osteoporotic fractures in the group with RA plus ESRD was a history of a fracture sustained within 5 years prior to initiation of dialysis, with an associated 11.5-fold increased fracture risk overall and an 8.2-fold increased risk of hip fracture.
“The reason that’s important is we don’t really have any medications to reduce fracture risk once you get to ESRD. Of course, we have bisphosphonates and Prolia (denosumab) and things like that, but that’s in patients with milder CKD [chronic kidney disease] or no renal disease at all. So the goal is to identify the patients early who are at higher risk so that we can protect those bones before they get to ESRD and we have nothing left to treat them with,” she said.
In addition to a history of prevalent fracture prior to starting ESRD, the other risk factors for fracture in patients with ESRD and comorbid RA Dr. Peterkin-McCalman identified in her study included age greater than 50 years at the start of dialysis and female gender, which was associated with a twofold greater fracture risk than in men. Black patients with ESRD and RA were 64% less likely than whites to experience an incident fragility fracture. And the fracture risk was higher in patients on hemodialysis than with peritoneal dialysis.
Her study was supported by the Medical College of Georgia and a research grant from Dialysis Clinic Inc.
SOURCE: Peterkin-McCalman R et al. RWCS 2020.
MAUI, HAWAII – Comorbid rheumatoid arthritis is a force multiplier for fragility fracture risk in patients with end-stage renal disease, Renée Peterkin-McCalman, MD, reported at the 2020 Rheumatology Winter Clinical Symposium.
“Patients with RA and ESRD are at substantially increased risk of osteoporotic fragility fractures compared to the overall population of ESRD patients. So fracture prevention prior to initiation of dialysis should be a focus of care in patients with RA,” said Dr. Peterkin-McCalman, a rheumatology fellow at the Medical College of Georgia, Augusta.
She presented a retrospective cohort study of 10,706 adults who initiated hemodialysis or peritoneal dialysis for ESRD during 2005-2008, including 1,040 who also had RA. All subjects were drawn from the United States Renal Data System. The impetus for the study, Dr. Peterkin-McCalman explained in an interview, was that although prior studies have established that RA and ESRD are independent risk factors for osteoporotic fractures, the interplay between the two was previously unknown.
The risk of incident osteoporotic fractures during the first 3 years after going on renal dialysis was 14.7% in patients with ESRD only, vaulting to 25.6% in those with comorbid RA. Individuals with both RA and ESRD were at an adjusted 1.83-fold increased overall risk for new fragility fractures and at 1.85-fold increased risk for hip fracture, compared to those without RA.
Far and away the strongest risk factor for incident osteoporotic fractures in the group with RA plus ESRD was a history of a fracture sustained within 5 years prior to initiation of dialysis, with an associated 11.5-fold increased fracture risk overall and an 8.2-fold increased risk of hip fracture.
“The reason that’s important is we don’t really have any medications to reduce fracture risk once you get to ESRD. Of course, we have bisphosphonates and Prolia (denosumab) and things like that, but that’s in patients with milder CKD [chronic kidney disease] or no renal disease at all. So the goal is to identify the patients early who are at higher risk so that we can protect those bones before they get to ESRD and we have nothing left to treat them with,” she said.
In addition to a history of prevalent fracture prior to starting ESRD, the other risk factors for fracture in patients with ESRD and comorbid RA Dr. Peterkin-McCalman identified in her study included age greater than 50 years at the start of dialysis and female gender, which was associated with a twofold greater fracture risk than in men. Black patients with ESRD and RA were 64% less likely than whites to experience an incident fragility fracture. And the fracture risk was higher in patients on hemodialysis than with peritoneal dialysis.
Her study was supported by the Medical College of Georgia and a research grant from Dialysis Clinic Inc.
SOURCE: Peterkin-McCalman R et al. RWCS 2020.
REPORTING FROM RWCS 2020
Hospitalist profile: Ilaria Gadalla, DMSc, PA-C
Ilaria Gadalla, DMSc, PA-C, is a hospitalist at Treasure Coast Hospitalists in Port St. Lucie, Fla., and serves as the physician assistant department chair/program director at South University, West Palm Beach, Fla., where she supervises more than 40 PAs, medical directors, and administrative staff across the South University campuses.
Ms. Gadalla is the chair of SHM’s NP/PA Special Interest Group, which was integral in drafting the society’s recent white paper on NP/PA integration and optimization.
She says that she continuously drives innovative projects for NPs and PAs to demonstrate excellence in collaboration by working closely with C-suite administration to expand quality improvement and education efforts. A prime example is the optimal communication system that she developed within her first week as a hospitalist in the Port St. Lucie area. Nursing, ED, and pharmacy staff had difficulty contacting hospitalists since the electronic medical record would not reflect the assigned hospitalist. She developed a simple contact sheet that included the hospitalist team each day. This method is still in use today.
At what point in your life did you realize you wanted to be a physician assistant?
I worked as a respiratory therapist and had a desire to expand my knowledge to manage critical care patients. I applied to Albany (N.Y.) Medical College, where I received my PA training. I knew before PA school that I was passionate about the medical field and wanted to advance my education and training.
How did you decide to become a PA hospitalist?
From day one at my first job, I knew that I loved inpatient medicine. I had a unique position as a cardiology hospitalist in Baltimore. That was my first experience working in hospital medicine. As a team of PAs, we worked closely with hospitalists in addition to the cardiologists. I really enjoyed the acuity of hospital medicine, and the brilliant hospitalist colleagues I worked with. They fueled my clinical knowledge daily, and that really drew me further into hospital medicine.
What is your current position?
I have a unique position. I work primarily in an academic role, as a program director and department chair of the physician assistant program at South University in West Palm Beach. I provide oversight for four PA program campuses located in Florida. Georgia, and Virginia. I also work clinically as a hospitalist at Treasure Coast Hospitalists in the Port St. Lucie area.
What are some of your favorite parts of your work?
My favorite aspect within the academic environment is what I call the “lightbulb moment” – that instant when you see your students comprehending and applying critical thinking regarding patient care. In clinical practice, I really enjoy educating and navigating a patient through their diagnosis and management. It’s like teaching, in that a patient can also have a lightbulb moment.
What are the most challenging aspects of practicing hospital medicine, from a PA’s perspective?
Medicine is an art, and each patient’s body is different. It’s a challenge to create individualized care in a system where metrics and templates exist. An additional challenge is simply navigating the culture of medicine and its receptiveness to physician assistants.
How does a hospitalist PA work differently than a PA in other health care settings?
PAs in hospital medicine must excel in communication skills. We are frequently the primary liaison between families, patients, specialists, consultants, and various departments daily. PAs in other care settings also communicate with a broad variety of people, but in hospital medicine that communication is required to be much more rapid. Your skills must really rise to the next level.
There is also the opportunity for PAs to integrate within hospital committees and the C-suite. That is very different from other settings.
How can PAs and nurse practitioners fit best into hospital medicine groups?
Initially, a hospital medicine group needs to identify their specific needs when deciding to integrate PAs and NPs. There must be a culture of receptiveness, with proper onboarding. That is a vital necessity, because without a proper onboarding process and a welcoming culture, a group is set up to fail.
What kind of resources do hospitalist PAs require to succeed?
There is a big need for education that targets the hospital C-suite and our physician colleagues about the scope of practice and autonomy that a PA can have. There are significant misconceptions about the capabilities of hospitalist PAs, and the additional value we bring to a team. PAs do not want to replace our MD/DO colleagues.
What do you see on the horizon for PAs and NPs in hospital medicine?
As the chair of SHM’s NP/PA Special Interest Group, we see a significant need for onboarding resources, because there is a hospitalist staffing shortage in the United States, and that gap can be filled with NPs and PAs. There is a lack of understanding about how to onboard and integrate advanced practice providers, so we are working intently on providing a toolkit that will assist groups with this process.
Do you have any advice for students who are interested in becoming hospitalist PAs?
I would encourage students to seek mentoring from a hospitalist PA. This can really help prepare you for the inpatient world, as it’s very different from outpatient medicine with a higher acuity of patient care. I would also encourage students to join SHM, as there are many resources to help improve your skills and increase your confidence as you grow within your career.
Ilaria Gadalla, DMSc, PA-C, is a hospitalist at Treasure Coast Hospitalists in Port St. Lucie, Fla., and serves as the physician assistant department chair/program director at South University, West Palm Beach, Fla., where she supervises more than 40 PAs, medical directors, and administrative staff across the South University campuses.
Ms. Gadalla is the chair of SHM’s NP/PA Special Interest Group, which was integral in drafting the society’s recent white paper on NP/PA integration and optimization.
She says that she continuously drives innovative projects for NPs and PAs to demonstrate excellence in collaboration by working closely with C-suite administration to expand quality improvement and education efforts. A prime example is the optimal communication system that she developed within her first week as a hospitalist in the Port St. Lucie area. Nursing, ED, and pharmacy staff had difficulty contacting hospitalists since the electronic medical record would not reflect the assigned hospitalist. She developed a simple contact sheet that included the hospitalist team each day. This method is still in use today.
At what point in your life did you realize you wanted to be a physician assistant?
I worked as a respiratory therapist and had a desire to expand my knowledge to manage critical care patients. I applied to Albany (N.Y.) Medical College, where I received my PA training. I knew before PA school that I was passionate about the medical field and wanted to advance my education and training.
How did you decide to become a PA hospitalist?
From day one at my first job, I knew that I loved inpatient medicine. I had a unique position as a cardiology hospitalist in Baltimore. That was my first experience working in hospital medicine. As a team of PAs, we worked closely with hospitalists in addition to the cardiologists. I really enjoyed the acuity of hospital medicine, and the brilliant hospitalist colleagues I worked with. They fueled my clinical knowledge daily, and that really drew me further into hospital medicine.
What is your current position?
I have a unique position. I work primarily in an academic role, as a program director and department chair of the physician assistant program at South University in West Palm Beach. I provide oversight for four PA program campuses located in Florida. Georgia, and Virginia. I also work clinically as a hospitalist at Treasure Coast Hospitalists in the Port St. Lucie area.
What are some of your favorite parts of your work?
My favorite aspect within the academic environment is what I call the “lightbulb moment” – that instant when you see your students comprehending and applying critical thinking regarding patient care. In clinical practice, I really enjoy educating and navigating a patient through their diagnosis and management. It’s like teaching, in that a patient can also have a lightbulb moment.
What are the most challenging aspects of practicing hospital medicine, from a PA’s perspective?
Medicine is an art, and each patient’s body is different. It’s a challenge to create individualized care in a system where metrics and templates exist. An additional challenge is simply navigating the culture of medicine and its receptiveness to physician assistants.
How does a hospitalist PA work differently than a PA in other health care settings?
PAs in hospital medicine must excel in communication skills. We are frequently the primary liaison between families, patients, specialists, consultants, and various departments daily. PAs in other care settings also communicate with a broad variety of people, but in hospital medicine that communication is required to be much more rapid. Your skills must really rise to the next level.
There is also the opportunity for PAs to integrate within hospital committees and the C-suite. That is very different from other settings.
How can PAs and nurse practitioners fit best into hospital medicine groups?
Initially, a hospital medicine group needs to identify their specific needs when deciding to integrate PAs and NPs. There must be a culture of receptiveness, with proper onboarding. That is a vital necessity, because without a proper onboarding process and a welcoming culture, a group is set up to fail.
What kind of resources do hospitalist PAs require to succeed?
There is a big need for education that targets the hospital C-suite and our physician colleagues about the scope of practice and autonomy that a PA can have. There are significant misconceptions about the capabilities of hospitalist PAs, and the additional value we bring to a team. PAs do not want to replace our MD/DO colleagues.
What do you see on the horizon for PAs and NPs in hospital medicine?
As the chair of SHM’s NP/PA Special Interest Group, we see a significant need for onboarding resources, because there is a hospitalist staffing shortage in the United States, and that gap can be filled with NPs and PAs. There is a lack of understanding about how to onboard and integrate advanced practice providers, so we are working intently on providing a toolkit that will assist groups with this process.
Do you have any advice for students who are interested in becoming hospitalist PAs?
I would encourage students to seek mentoring from a hospitalist PA. This can really help prepare you for the inpatient world, as it’s very different from outpatient medicine with a higher acuity of patient care. I would also encourage students to join SHM, as there are many resources to help improve your skills and increase your confidence as you grow within your career.
Ilaria Gadalla, DMSc, PA-C, is a hospitalist at Treasure Coast Hospitalists in Port St. Lucie, Fla., and serves as the physician assistant department chair/program director at South University, West Palm Beach, Fla., where she supervises more than 40 PAs, medical directors, and administrative staff across the South University campuses.
Ms. Gadalla is the chair of SHM’s NP/PA Special Interest Group, which was integral in drafting the society’s recent white paper on NP/PA integration and optimization.
She says that she continuously drives innovative projects for NPs and PAs to demonstrate excellence in collaboration by working closely with C-suite administration to expand quality improvement and education efforts. A prime example is the optimal communication system that she developed within her first week as a hospitalist in the Port St. Lucie area. Nursing, ED, and pharmacy staff had difficulty contacting hospitalists since the electronic medical record would not reflect the assigned hospitalist. She developed a simple contact sheet that included the hospitalist team each day. This method is still in use today.
At what point in your life did you realize you wanted to be a physician assistant?
I worked as a respiratory therapist and had a desire to expand my knowledge to manage critical care patients. I applied to Albany (N.Y.) Medical College, where I received my PA training. I knew before PA school that I was passionate about the medical field and wanted to advance my education and training.
How did you decide to become a PA hospitalist?
From day one at my first job, I knew that I loved inpatient medicine. I had a unique position as a cardiology hospitalist in Baltimore. That was my first experience working in hospital medicine. As a team of PAs, we worked closely with hospitalists in addition to the cardiologists. I really enjoyed the acuity of hospital medicine, and the brilliant hospitalist colleagues I worked with. They fueled my clinical knowledge daily, and that really drew me further into hospital medicine.
What is your current position?
I have a unique position. I work primarily in an academic role, as a program director and department chair of the physician assistant program at South University in West Palm Beach. I provide oversight for four PA program campuses located in Florida. Georgia, and Virginia. I also work clinically as a hospitalist at Treasure Coast Hospitalists in the Port St. Lucie area.
What are some of your favorite parts of your work?
My favorite aspect within the academic environment is what I call the “lightbulb moment” – that instant when you see your students comprehending and applying critical thinking regarding patient care. In clinical practice, I really enjoy educating and navigating a patient through their diagnosis and management. It’s like teaching, in that a patient can also have a lightbulb moment.
What are the most challenging aspects of practicing hospital medicine, from a PA’s perspective?
Medicine is an art, and each patient’s body is different. It’s a challenge to create individualized care in a system where metrics and templates exist. An additional challenge is simply navigating the culture of medicine and its receptiveness to physician assistants.
How does a hospitalist PA work differently than a PA in other health care settings?
PAs in hospital medicine must excel in communication skills. We are frequently the primary liaison between families, patients, specialists, consultants, and various departments daily. PAs in other care settings also communicate with a broad variety of people, but in hospital medicine that communication is required to be much more rapid. Your skills must really rise to the next level.
There is also the opportunity for PAs to integrate within hospital committees and the C-suite. That is very different from other settings.
How can PAs and nurse practitioners fit best into hospital medicine groups?
Initially, a hospital medicine group needs to identify their specific needs when deciding to integrate PAs and NPs. There must be a culture of receptiveness, with proper onboarding. That is a vital necessity, because without a proper onboarding process and a welcoming culture, a group is set up to fail.
What kind of resources do hospitalist PAs require to succeed?
There is a big need for education that targets the hospital C-suite and our physician colleagues about the scope of practice and autonomy that a PA can have. There are significant misconceptions about the capabilities of hospitalist PAs, and the additional value we bring to a team. PAs do not want to replace our MD/DO colleagues.
What do you see on the horizon for PAs and NPs in hospital medicine?
As the chair of SHM’s NP/PA Special Interest Group, we see a significant need for onboarding resources, because there is a hospitalist staffing shortage in the United States, and that gap can be filled with NPs and PAs. There is a lack of understanding about how to onboard and integrate advanced practice providers, so we are working intently on providing a toolkit that will assist groups with this process.
Do you have any advice for students who are interested in becoming hospitalist PAs?
I would encourage students to seek mentoring from a hospitalist PA. This can really help prepare you for the inpatient world, as it’s very different from outpatient medicine with a higher acuity of patient care. I would also encourage students to join SHM, as there are many resources to help improve your skills and increase your confidence as you grow within your career.
FDA moves to expand coronavirus testing capacity; CDC clarifies testing criteria
The White House Coronavirus Task Force appeared at a press briefing March 2 to provide updates about testing strategies and public health coordination to address the current outbreak of the coronavirus COVID-19. Speaking at the briefing, led by Vice President Mike Pence, Centers for Disease Control and Prevention (CDC) director Robert Redfield, MD, said, “Working with our public health partners we continue to be able to identify new community cases and use our public health efforts to aggressively confirm, isolate, and do contact tracking.” Calling state, local, tribal, and territorial public health departments “the backbone of the public health system in our country,” Dr. Redfield noted that he expected many more confirmed COVID-19 cases to emerge.
At least some of the expected increase in confirmed cases of COVID-19 will occur because of expanded testing capacity, noted several of the task force members. On Feb. 29, the Food and Drug Administration issued a the virus that is causing the current outbreak of COVID-19.
Highly qualified laboratories, including both those run by public agencies and private labs, are now authorized to begin using their own validated test for the virus as long as they submit an Emergency Use Authorization (EUA) to the Food and Drug Administration within 15 days of notifying the agency of validation.
“To effectively respond to the COVID-19 outbreak, rapid detection of cases and contacts, appropriate clinical management and infection control, and implementation of community mitigation efforts are critical. This can best be achieved with wide availability of testing capabilities in health care settings, reference and commercial laboratories, and at the point of care,” the agency wrote in a press announcement of the expedited test expansion.
On Feb. 4, the Secretary of the Department of Health & Human Services declared a coronavirus public health emergency. The FDA was then authorized to allow individual laboratories with validated coronavirus tests to begin testing samples immediately. The goal is a more rapid and expanded testing capacity in the United States.
“The global emergence of COVID-19 is concerning, and we appreciate the efforts of the FDA to help bring more testing capability to the U.S.,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization and Respiratory Diseases (NCIRD), said in the press release.
The new guidance that permits the immediate use of clinical tests after individual development and validation, said the FDA, only applies to labs already certified to perform high complexity testing under Clinical Laboratory Improvement Amendments. Many governmental, academic, and private laboratories fall into this category, however.
“Under this policy, we expect certain laboratories who develop validated tests for coronavirus would begin using them right away prior to FDA review,” said Jeffrey Shuren, MD, JD, director of the FDA’s Center for Devices and Radiological Health. “We believe this action will support laboratories across the country working on this urgent public health situation,” he added in the press release.
“By the end of this week, close to a million tests will be available,” FDA Commissioner Stephen M. Hahn, MD, said during the March 2 briefing.*
Updated criteria
The CDC is maintaining updated criteria for the virus testing on its website. Testing criteria are based both on clinical features and epidemiologic risk.
Individuals with less severe clinical features – those who have either fever or signs and symptoms of lower respiratory disease such as cough or shortness of breath, but who don’t require hospitalization – should be tested if they have high epidemiologic risk. “High risk” is defined by the CDC as any individual, including health care workers, who has had close contact with a person with confirmed COVID-19 within the past 2 weeks. For health care workers, testing can be considered even if they have relatively mild respiratory symptoms or have had contact with a person who is suspected, but not yet confirmed, to have coronavirus.
In its testing guidance, the CDC recognizes that defining close contact is difficult. General guidelines are that individuals are considered to have been in close contact with a person who has COVID-19 if they were within about six feet of the person for a prolonged period, or cared for or have spent a prolonged amount of time in the same room or house as a person with confirmed COVID-19.
Individuals who have both fever and signs or symptoms of lower respiratory illness who require hospitalization should be tested if they have a history of travel from any affected geographic area within 14 days of the onset of their symptoms. The CDC now defines “affected geographic area” as any country or region that has at least a CDC Level 2 Travel Health Notice for COVID-19, so that the testing criteria themselves don’t need to be updated when new geographic areas are included in these alerts. As of March 3, China, Iran, Italy, Japan, and South Korea all have Level 2 or 3 travel alerts.
The CDC now recommends that any patient who has severe acute lower respiratory illness that requires hospitalization and doesn’t have an alternative diagnosis should be tested, even without any identified source of exposure.
“Despite seeing these new cases, the risk to the American people is low,” said the CDC’s Dr. Redfield. In response to a question from the press about how fast the coronavirus will spread across the United States, Dr. Redfield said, “From the beginning we’ve anticipated seeing community cases pop up.” He added that as these cases arise, testing and public health strategies will focus on unearthing linkages and contacts to learn how the virus is spreading. “We’ll use the public health strategies that we can to limit that transmission,” he said.
*An earlier version of this article misattributed this quote.
The White House Coronavirus Task Force appeared at a press briefing March 2 to provide updates about testing strategies and public health coordination to address the current outbreak of the coronavirus COVID-19. Speaking at the briefing, led by Vice President Mike Pence, Centers for Disease Control and Prevention (CDC) director Robert Redfield, MD, said, “Working with our public health partners we continue to be able to identify new community cases and use our public health efforts to aggressively confirm, isolate, and do contact tracking.” Calling state, local, tribal, and territorial public health departments “the backbone of the public health system in our country,” Dr. Redfield noted that he expected many more confirmed COVID-19 cases to emerge.
At least some of the expected increase in confirmed cases of COVID-19 will occur because of expanded testing capacity, noted several of the task force members. On Feb. 29, the Food and Drug Administration issued a the virus that is causing the current outbreak of COVID-19.
Highly qualified laboratories, including both those run by public agencies and private labs, are now authorized to begin using their own validated test for the virus as long as they submit an Emergency Use Authorization (EUA) to the Food and Drug Administration within 15 days of notifying the agency of validation.
“To effectively respond to the COVID-19 outbreak, rapid detection of cases and contacts, appropriate clinical management and infection control, and implementation of community mitigation efforts are critical. This can best be achieved with wide availability of testing capabilities in health care settings, reference and commercial laboratories, and at the point of care,” the agency wrote in a press announcement of the expedited test expansion.
On Feb. 4, the Secretary of the Department of Health & Human Services declared a coronavirus public health emergency. The FDA was then authorized to allow individual laboratories with validated coronavirus tests to begin testing samples immediately. The goal is a more rapid and expanded testing capacity in the United States.
“The global emergence of COVID-19 is concerning, and we appreciate the efforts of the FDA to help bring more testing capability to the U.S.,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization and Respiratory Diseases (NCIRD), said in the press release.
The new guidance that permits the immediate use of clinical tests after individual development and validation, said the FDA, only applies to labs already certified to perform high complexity testing under Clinical Laboratory Improvement Amendments. Many governmental, academic, and private laboratories fall into this category, however.
“Under this policy, we expect certain laboratories who develop validated tests for coronavirus would begin using them right away prior to FDA review,” said Jeffrey Shuren, MD, JD, director of the FDA’s Center for Devices and Radiological Health. “We believe this action will support laboratories across the country working on this urgent public health situation,” he added in the press release.
“By the end of this week, close to a million tests will be available,” FDA Commissioner Stephen M. Hahn, MD, said during the March 2 briefing.*
Updated criteria
The CDC is maintaining updated criteria for the virus testing on its website. Testing criteria are based both on clinical features and epidemiologic risk.
Individuals with less severe clinical features – those who have either fever or signs and symptoms of lower respiratory disease such as cough or shortness of breath, but who don’t require hospitalization – should be tested if they have high epidemiologic risk. “High risk” is defined by the CDC as any individual, including health care workers, who has had close contact with a person with confirmed COVID-19 within the past 2 weeks. For health care workers, testing can be considered even if they have relatively mild respiratory symptoms or have had contact with a person who is suspected, but not yet confirmed, to have coronavirus.
In its testing guidance, the CDC recognizes that defining close contact is difficult. General guidelines are that individuals are considered to have been in close contact with a person who has COVID-19 if they were within about six feet of the person for a prolonged period, or cared for or have spent a prolonged amount of time in the same room or house as a person with confirmed COVID-19.
Individuals who have both fever and signs or symptoms of lower respiratory illness who require hospitalization should be tested if they have a history of travel from any affected geographic area within 14 days of the onset of their symptoms. The CDC now defines “affected geographic area” as any country or region that has at least a CDC Level 2 Travel Health Notice for COVID-19, so that the testing criteria themselves don’t need to be updated when new geographic areas are included in these alerts. As of March 3, China, Iran, Italy, Japan, and South Korea all have Level 2 or 3 travel alerts.
The CDC now recommends that any patient who has severe acute lower respiratory illness that requires hospitalization and doesn’t have an alternative diagnosis should be tested, even without any identified source of exposure.
“Despite seeing these new cases, the risk to the American people is low,” said the CDC’s Dr. Redfield. In response to a question from the press about how fast the coronavirus will spread across the United States, Dr. Redfield said, “From the beginning we’ve anticipated seeing community cases pop up.” He added that as these cases arise, testing and public health strategies will focus on unearthing linkages and contacts to learn how the virus is spreading. “We’ll use the public health strategies that we can to limit that transmission,” he said.
*An earlier version of this article misattributed this quote.
The White House Coronavirus Task Force appeared at a press briefing March 2 to provide updates about testing strategies and public health coordination to address the current outbreak of the coronavirus COVID-19. Speaking at the briefing, led by Vice President Mike Pence, Centers for Disease Control and Prevention (CDC) director Robert Redfield, MD, said, “Working with our public health partners we continue to be able to identify new community cases and use our public health efforts to aggressively confirm, isolate, and do contact tracking.” Calling state, local, tribal, and territorial public health departments “the backbone of the public health system in our country,” Dr. Redfield noted that he expected many more confirmed COVID-19 cases to emerge.
At least some of the expected increase in confirmed cases of COVID-19 will occur because of expanded testing capacity, noted several of the task force members. On Feb. 29, the Food and Drug Administration issued a the virus that is causing the current outbreak of COVID-19.
Highly qualified laboratories, including both those run by public agencies and private labs, are now authorized to begin using their own validated test for the virus as long as they submit an Emergency Use Authorization (EUA) to the Food and Drug Administration within 15 days of notifying the agency of validation.
“To effectively respond to the COVID-19 outbreak, rapid detection of cases and contacts, appropriate clinical management and infection control, and implementation of community mitigation efforts are critical. This can best be achieved with wide availability of testing capabilities in health care settings, reference and commercial laboratories, and at the point of care,” the agency wrote in a press announcement of the expedited test expansion.
On Feb. 4, the Secretary of the Department of Health & Human Services declared a coronavirus public health emergency. The FDA was then authorized to allow individual laboratories with validated coronavirus tests to begin testing samples immediately. The goal is a more rapid and expanded testing capacity in the United States.
“The global emergence of COVID-19 is concerning, and we appreciate the efforts of the FDA to help bring more testing capability to the U.S.,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization and Respiratory Diseases (NCIRD), said in the press release.
The new guidance that permits the immediate use of clinical tests after individual development and validation, said the FDA, only applies to labs already certified to perform high complexity testing under Clinical Laboratory Improvement Amendments. Many governmental, academic, and private laboratories fall into this category, however.
“Under this policy, we expect certain laboratories who develop validated tests for coronavirus would begin using them right away prior to FDA review,” said Jeffrey Shuren, MD, JD, director of the FDA’s Center for Devices and Radiological Health. “We believe this action will support laboratories across the country working on this urgent public health situation,” he added in the press release.
“By the end of this week, close to a million tests will be available,” FDA Commissioner Stephen M. Hahn, MD, said during the March 2 briefing.*
Updated criteria
The CDC is maintaining updated criteria for the virus testing on its website. Testing criteria are based both on clinical features and epidemiologic risk.
Individuals with less severe clinical features – those who have either fever or signs and symptoms of lower respiratory disease such as cough or shortness of breath, but who don’t require hospitalization – should be tested if they have high epidemiologic risk. “High risk” is defined by the CDC as any individual, including health care workers, who has had close contact with a person with confirmed COVID-19 within the past 2 weeks. For health care workers, testing can be considered even if they have relatively mild respiratory symptoms or have had contact with a person who is suspected, but not yet confirmed, to have coronavirus.
In its testing guidance, the CDC recognizes that defining close contact is difficult. General guidelines are that individuals are considered to have been in close contact with a person who has COVID-19 if they were within about six feet of the person for a prolonged period, or cared for or have spent a prolonged amount of time in the same room or house as a person with confirmed COVID-19.
Individuals who have both fever and signs or symptoms of lower respiratory illness who require hospitalization should be tested if they have a history of travel from any affected geographic area within 14 days of the onset of their symptoms. The CDC now defines “affected geographic area” as any country or region that has at least a CDC Level 2 Travel Health Notice for COVID-19, so that the testing criteria themselves don’t need to be updated when new geographic areas are included in these alerts. As of March 3, China, Iran, Italy, Japan, and South Korea all have Level 2 or 3 travel alerts.
The CDC now recommends that any patient who has severe acute lower respiratory illness that requires hospitalization and doesn’t have an alternative diagnosis should be tested, even without any identified source of exposure.
“Despite seeing these new cases, the risk to the American people is low,” said the CDC’s Dr. Redfield. In response to a question from the press about how fast the coronavirus will spread across the United States, Dr. Redfield said, “From the beginning we’ve anticipated seeing community cases pop up.” He added that as these cases arise, testing and public health strategies will focus on unearthing linkages and contacts to learn how the virus is spreading. “We’ll use the public health strategies that we can to limit that transmission,” he said.
*An earlier version of this article misattributed this quote.
FROM A PRESS BRIEFING BY THE WHITE HOUSE CORONAVIRUS TASK FORCE
Pembro ups survival in NSCLC: ‘Really extraordinary’ results
More than a third (35%) of patients with relapsed non–small cell lung cancer (NSCLC) treated with pembrolizumab (Keytruda, Merck) were still alive at 3 years, according to long-term results from a pivotal clinical trial.
The results also showed that, among the 10% of patients who completed all 35 cycles of pembrolizumab, the 3-year overall survival was approximately 99%, with progression-free survival (PFS) at around 70%.
“It is too soon to say that pembrolizumab is a potential cure...and we know that it doesn’t work for all patients, but the agent remains very, very promising,” said lead investigator Roy Herbst, MD, PhD, Department of Medical Oncology, Yale Comprehensive Cancer Center, New Haven, Connecticut.
These new results come from the KEYNOTE-010 trial, conducted in more than 1000 patients with NSCLC who had progressed on chemotherapy, randomized to receive immunotherapy with pembrolizumab or chemotherapy with docetaxel.
The results were published online on February 20 in the Journal of Clinical Oncology and were previously presented at the 2018 annual meeting of the European Society of Medical Oncology.
Overall survival at 3 years was 35% in patients with PD-L1 expression ≥ 50% in the tumor, and 23% in those with PD-L1 ≥ 1%.
This compares with 3-year overall survival of 11-13% with docetaxel.
These results are “really extraordinary,” Herbst commented to Medscape Medical News.
The 3-year overall survival rate of 35% in patients with PD-L1 ≥ 50% “is huge,” he said. “It really shows the durability of the response.”
Herbst commented that the “almost 100%” survival at 3 years among patients who completed 35 cycles of pembrolizumab shows that this treatment period (of about 2 years) is “probably about the right time to treat.”
“Currently, the agent is being used in all potential settings, before any other treatment, after other treatment, and with other treatments,” he said.
“Our hope is to find the very best way to use pembrolizumab to treat individual lung cancer patients, assessing how much PD-L1 a tumor expresses, what stage the patient is in, as well as other variables and biomarkers we are working on. This is the story of tailored therapy,” Herbst said.
Approached for comment, Solange Peters, MD, PhD, Oncology Department, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, said that the results are “very good” and “confirm the paradigms we have been seeing in melanoma,” with good long-term control, which is “very reassuring.”
However, she told Medscape Medical News that the trial raises an important question: «How long do you need to expose your patient with lung cancer to immunotherapy in order to get this long-term control?»
She said the “good news” is that, for the 10% of patients who completed 2 years of treatment per protocol, almost all of them are still alive at 3 years, “which is not observed with chemotherapy.”
The question for Peters is “more about the definition of long-term control,” as it was seen that almost one in three patients nevertheless had some form of progression.
This suggests that you have a group of people “who are nicely controlled, you stop the drug, and 1 year later a third of them have progressed.”
Peters said: “So how long do you need to treat these patients? I would say I still don’t know.”
“If I were one of these patients probably I would still want to continue [on the drug]. Of course, some might have progressed even while remaining on the drug, but the proportion who would have progressed is probably smaller than this one.”
Responses on Re-introduction of Therapy
The study also allowed patients who had completed 35 cycles of pembrolizumab to be restarted on the drug if they experienced progression.
The team found that, among 14 patients, 43% had a partial response and 36% had stable disease.
Herbst highlighted this finding and told Medscape Medical News that this «could be very important to physicians because they might want to think about using the drug again» in patients who have progressed on it.
He believes that the progression was not because of any resistance per se but rather a slowing down of the adaptive immune response.
“It’s just that it needs a boost,” he said, while noting that tissue specimens will nevertheless be required to demonstrate the theory.
Peters agreed that these results are “very promising,” but questioned their overall significance, as it is “a very small number of patients” from a subset whose disease was controlled while on treatment and then progressed after stopping.
She also pointed out that, in another study in patients with lung cancer (CheckMate-153), some patients were rechallenged with immunotherapy after having stopped treatment at 1 year “with very poor results.”
Peters said studies in melanoma have shown “rechallenge can be useful in a significant proportion of patients, but still you have not demonstrated that stopping and rechallenging is the same as not stopping.”
Study Details
KEYNOTE-010 involved patients with NSCLC from 202 centers in 24 countries with stage IIIB/IV disease expressing PD-L1 who had experienced disease progression after at least two cycles of platinum-based chemotherapy.
They were randomized 1:1:1 to open-label pembrolizumab 2 mg/kg, pembrolizumab 10 mg/kg, or docetaxel 75 mg/m2 every 3 weeks.
Pembrolizumab was continued for 35 treatment cycles over 2 years and docetaxel was continued for the maximum duration allowed by local regulators.
Patients who stopped pembrolizumab after a complete response or completing all 35 cycles, and who subsequently experienced disease progression, could receive up to 17 additional cycles over 1 year if they had not received another anticancer therapy in the meantime.
Among the 1,034 patients originally recruited between August 2013 and February 2015, 691 were assigned to pembrolizumab at 3 mg/kg or 10 mg/kg and 343 to docetaxel.
For the intention-to-treat analysis in 1033 patients, the mean duration of follow-up was 42.6 months, with a median treatment duration of 3.5 months in the pembrolizumab group and 2.0 months in the docetaxel group.
Compared with docetaxel, pembrolizumab was associated with a significant reduction in the risk of death, at a hazard ratio of 0.53 in patients with PD-L1 ≥ 50% and 0.69 in those with PD-L1 ≥ 1% (both P < .0001).
In patients with PD-L1 ≥ 50%, median overall survival was 16.9 months in those given pembrolizumab and 8.2 months with docetaxel. Among those with PD-L1 ≥ 1%, median overall survival was 11.8 months with pembrolizumab versus 8.4 months with docetaxel.
Overall survival on Kaplan-Meier analysis was 34.5% with pembrolizumab and 12.7% with docetaxel in the PD-L1 ≥ 50% group, and 22.9% versus 11.0% in the PD-L1 ≥ 1% group.
PFS significantly improved with pembrolizumab versus docetaxel, at a hazard ratio of 0.57 (P < .00001) among patients with PD-L1 ≥ 50% and 0.83 (P < .005) in those with PD-L1 ≥ 1%.
In terms of safety, 17.7% of patients who completed 2 years of pembrolizumab had grade 3-5 treatment-related adverse events, compared with 16.6% among all pembrolizumab-treated patients and 36.6% of those given docetaxel.
The team reports that 79 patients completed 35 cycles of pembrolizumab, with a median follow-up of 43.4 months.
Compared with the overall patient group, these patients were less likely to be aged ≥ 65 years and to have received two or more prior treatment lines, although they were more likely to be current or former smokers and to have squamous tumor histology.
Patients who completed 35 cycles had an objective response rate of 94.9%, and 91.0% were still alive at the data cutoff. Overall survival rates were 98.7% at 12 months and 86.3% at 24 months.
Of 71 patients eligible for analysis, 23 experienced progression after completing pembrolizumab, at PFS rates at 12 and 24 months of 72.5% and 57.7%, respectively.
A total of 14 patients were given a second course of pembrolizumab, of whom six had a partial response and five had stable disease. At the data cutoff, five patients had completed 17 additional cycles and 11 were alive.
Pembro Approved at Fixed Dose
One notable aspect of the study is that patients in the pembrolizumab arm were given two different doses of the drug based on body weight, whereas the drug is approved in the United States at a fixed dose of 200 mg.
Herbst told Medscape Medical News he considers the 200-mg dose to be appropriate.
“I didn’t think that the 3-mg versus 10-mg dose per kg that we used in our study made much difference in an average-sized person,” he said, adding that the 200-mg dose “is something a little bit more than 3 mg/kg.”
“So I think that this is clearly the right dos, and I don’t think more would make any difference,” he said.
The study was funded by Merck, the manufacturer of pembrolizumab. Herbst has reported having a consulting or advisory role for many pharmaceutical companies. Other coauthors have also reported relationships with industry, and some of the authors are Merck employees. Peters has reported receiving education grants, providing consultation, attending advisory boards, and/or providing lectures for many pharmaceutical companies.
This article first appeared on Medscape.com.
More than a third (35%) of patients with relapsed non–small cell lung cancer (NSCLC) treated with pembrolizumab (Keytruda, Merck) were still alive at 3 years, according to long-term results from a pivotal clinical trial.
The results also showed that, among the 10% of patients who completed all 35 cycles of pembrolizumab, the 3-year overall survival was approximately 99%, with progression-free survival (PFS) at around 70%.
“It is too soon to say that pembrolizumab is a potential cure...and we know that it doesn’t work for all patients, but the agent remains very, very promising,” said lead investigator Roy Herbst, MD, PhD, Department of Medical Oncology, Yale Comprehensive Cancer Center, New Haven, Connecticut.
These new results come from the KEYNOTE-010 trial, conducted in more than 1000 patients with NSCLC who had progressed on chemotherapy, randomized to receive immunotherapy with pembrolizumab or chemotherapy with docetaxel.
The results were published online on February 20 in the Journal of Clinical Oncology and were previously presented at the 2018 annual meeting of the European Society of Medical Oncology.
Overall survival at 3 years was 35% in patients with PD-L1 expression ≥ 50% in the tumor, and 23% in those with PD-L1 ≥ 1%.
This compares with 3-year overall survival of 11-13% with docetaxel.
These results are “really extraordinary,” Herbst commented to Medscape Medical News.
The 3-year overall survival rate of 35% in patients with PD-L1 ≥ 50% “is huge,” he said. “It really shows the durability of the response.”
Herbst commented that the “almost 100%” survival at 3 years among patients who completed 35 cycles of pembrolizumab shows that this treatment period (of about 2 years) is “probably about the right time to treat.”
“Currently, the agent is being used in all potential settings, before any other treatment, after other treatment, and with other treatments,” he said.
“Our hope is to find the very best way to use pembrolizumab to treat individual lung cancer patients, assessing how much PD-L1 a tumor expresses, what stage the patient is in, as well as other variables and biomarkers we are working on. This is the story of tailored therapy,” Herbst said.
Approached for comment, Solange Peters, MD, PhD, Oncology Department, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, said that the results are “very good” and “confirm the paradigms we have been seeing in melanoma,” with good long-term control, which is “very reassuring.”
However, she told Medscape Medical News that the trial raises an important question: «How long do you need to expose your patient with lung cancer to immunotherapy in order to get this long-term control?»
She said the “good news” is that, for the 10% of patients who completed 2 years of treatment per protocol, almost all of them are still alive at 3 years, “which is not observed with chemotherapy.”
The question for Peters is “more about the definition of long-term control,” as it was seen that almost one in three patients nevertheless had some form of progression.
This suggests that you have a group of people “who are nicely controlled, you stop the drug, and 1 year later a third of them have progressed.”
Peters said: “So how long do you need to treat these patients? I would say I still don’t know.”
“If I were one of these patients probably I would still want to continue [on the drug]. Of course, some might have progressed even while remaining on the drug, but the proportion who would have progressed is probably smaller than this one.”
Responses on Re-introduction of Therapy
The study also allowed patients who had completed 35 cycles of pembrolizumab to be restarted on the drug if they experienced progression.
The team found that, among 14 patients, 43% had a partial response and 36% had stable disease.
Herbst highlighted this finding and told Medscape Medical News that this «could be very important to physicians because they might want to think about using the drug again» in patients who have progressed on it.
He believes that the progression was not because of any resistance per se but rather a slowing down of the adaptive immune response.
“It’s just that it needs a boost,” he said, while noting that tissue specimens will nevertheless be required to demonstrate the theory.
Peters agreed that these results are “very promising,” but questioned their overall significance, as it is “a very small number of patients” from a subset whose disease was controlled while on treatment and then progressed after stopping.
She also pointed out that, in another study in patients with lung cancer (CheckMate-153), some patients were rechallenged with immunotherapy after having stopped treatment at 1 year “with very poor results.”
Peters said studies in melanoma have shown “rechallenge can be useful in a significant proportion of patients, but still you have not demonstrated that stopping and rechallenging is the same as not stopping.”
Study Details
KEYNOTE-010 involved patients with NSCLC from 202 centers in 24 countries with stage IIIB/IV disease expressing PD-L1 who had experienced disease progression after at least two cycles of platinum-based chemotherapy.
They were randomized 1:1:1 to open-label pembrolizumab 2 mg/kg, pembrolizumab 10 mg/kg, or docetaxel 75 mg/m2 every 3 weeks.
Pembrolizumab was continued for 35 treatment cycles over 2 years and docetaxel was continued for the maximum duration allowed by local regulators.
Patients who stopped pembrolizumab after a complete response or completing all 35 cycles, and who subsequently experienced disease progression, could receive up to 17 additional cycles over 1 year if they had not received another anticancer therapy in the meantime.
Among the 1,034 patients originally recruited between August 2013 and February 2015, 691 were assigned to pembrolizumab at 3 mg/kg or 10 mg/kg and 343 to docetaxel.
For the intention-to-treat analysis in 1033 patients, the mean duration of follow-up was 42.6 months, with a median treatment duration of 3.5 months in the pembrolizumab group and 2.0 months in the docetaxel group.
Compared with docetaxel, pembrolizumab was associated with a significant reduction in the risk of death, at a hazard ratio of 0.53 in patients with PD-L1 ≥ 50% and 0.69 in those with PD-L1 ≥ 1% (both P < .0001).
In patients with PD-L1 ≥ 50%, median overall survival was 16.9 months in those given pembrolizumab and 8.2 months with docetaxel. Among those with PD-L1 ≥ 1%, median overall survival was 11.8 months with pembrolizumab versus 8.4 months with docetaxel.
Overall survival on Kaplan-Meier analysis was 34.5% with pembrolizumab and 12.7% with docetaxel in the PD-L1 ≥ 50% group, and 22.9% versus 11.0% in the PD-L1 ≥ 1% group.
PFS significantly improved with pembrolizumab versus docetaxel, at a hazard ratio of 0.57 (P < .00001) among patients with PD-L1 ≥ 50% and 0.83 (P < .005) in those with PD-L1 ≥ 1%.
In terms of safety, 17.7% of patients who completed 2 years of pembrolizumab had grade 3-5 treatment-related adverse events, compared with 16.6% among all pembrolizumab-treated patients and 36.6% of those given docetaxel.
The team reports that 79 patients completed 35 cycles of pembrolizumab, with a median follow-up of 43.4 months.
Compared with the overall patient group, these patients were less likely to be aged ≥ 65 years and to have received two or more prior treatment lines, although they were more likely to be current or former smokers and to have squamous tumor histology.
Patients who completed 35 cycles had an objective response rate of 94.9%, and 91.0% were still alive at the data cutoff. Overall survival rates were 98.7% at 12 months and 86.3% at 24 months.
Of 71 patients eligible for analysis, 23 experienced progression after completing pembrolizumab, at PFS rates at 12 and 24 months of 72.5% and 57.7%, respectively.
A total of 14 patients were given a second course of pembrolizumab, of whom six had a partial response and five had stable disease. At the data cutoff, five patients had completed 17 additional cycles and 11 were alive.
Pembro Approved at Fixed Dose
One notable aspect of the study is that patients in the pembrolizumab arm were given two different doses of the drug based on body weight, whereas the drug is approved in the United States at a fixed dose of 200 mg.
Herbst told Medscape Medical News he considers the 200-mg dose to be appropriate.
“I didn’t think that the 3-mg versus 10-mg dose per kg that we used in our study made much difference in an average-sized person,” he said, adding that the 200-mg dose “is something a little bit more than 3 mg/kg.”
“So I think that this is clearly the right dos, and I don’t think more would make any difference,” he said.
The study was funded by Merck, the manufacturer of pembrolizumab. Herbst has reported having a consulting or advisory role for many pharmaceutical companies. Other coauthors have also reported relationships with industry, and some of the authors are Merck employees. Peters has reported receiving education grants, providing consultation, attending advisory boards, and/or providing lectures for many pharmaceutical companies.
This article first appeared on Medscape.com.
More than a third (35%) of patients with relapsed non–small cell lung cancer (NSCLC) treated with pembrolizumab (Keytruda, Merck) were still alive at 3 years, according to long-term results from a pivotal clinical trial.
The results also showed that, among the 10% of patients who completed all 35 cycles of pembrolizumab, the 3-year overall survival was approximately 99%, with progression-free survival (PFS) at around 70%.
“It is too soon to say that pembrolizumab is a potential cure...and we know that it doesn’t work for all patients, but the agent remains very, very promising,” said lead investigator Roy Herbst, MD, PhD, Department of Medical Oncology, Yale Comprehensive Cancer Center, New Haven, Connecticut.
These new results come from the KEYNOTE-010 trial, conducted in more than 1000 patients with NSCLC who had progressed on chemotherapy, randomized to receive immunotherapy with pembrolizumab or chemotherapy with docetaxel.
The results were published online on February 20 in the Journal of Clinical Oncology and were previously presented at the 2018 annual meeting of the European Society of Medical Oncology.
Overall survival at 3 years was 35% in patients with PD-L1 expression ≥ 50% in the tumor, and 23% in those with PD-L1 ≥ 1%.
This compares with 3-year overall survival of 11-13% with docetaxel.
These results are “really extraordinary,” Herbst commented to Medscape Medical News.
The 3-year overall survival rate of 35% in patients with PD-L1 ≥ 50% “is huge,” he said. “It really shows the durability of the response.”
Herbst commented that the “almost 100%” survival at 3 years among patients who completed 35 cycles of pembrolizumab shows that this treatment period (of about 2 years) is “probably about the right time to treat.”
“Currently, the agent is being used in all potential settings, before any other treatment, after other treatment, and with other treatments,” he said.
“Our hope is to find the very best way to use pembrolizumab to treat individual lung cancer patients, assessing how much PD-L1 a tumor expresses, what stage the patient is in, as well as other variables and biomarkers we are working on. This is the story of tailored therapy,” Herbst said.
Approached for comment, Solange Peters, MD, PhD, Oncology Department, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland, said that the results are “very good” and “confirm the paradigms we have been seeing in melanoma,” with good long-term control, which is “very reassuring.”
However, she told Medscape Medical News that the trial raises an important question: «How long do you need to expose your patient with lung cancer to immunotherapy in order to get this long-term control?»
She said the “good news” is that, for the 10% of patients who completed 2 years of treatment per protocol, almost all of them are still alive at 3 years, “which is not observed with chemotherapy.”
The question for Peters is “more about the definition of long-term control,” as it was seen that almost one in three patients nevertheless had some form of progression.
This suggests that you have a group of people “who are nicely controlled, you stop the drug, and 1 year later a third of them have progressed.”
Peters said: “So how long do you need to treat these patients? I would say I still don’t know.”
“If I were one of these patients probably I would still want to continue [on the drug]. Of course, some might have progressed even while remaining on the drug, but the proportion who would have progressed is probably smaller than this one.”
Responses on Re-introduction of Therapy
The study also allowed patients who had completed 35 cycles of pembrolizumab to be restarted on the drug if they experienced progression.
The team found that, among 14 patients, 43% had a partial response and 36% had stable disease.
Herbst highlighted this finding and told Medscape Medical News that this «could be very important to physicians because they might want to think about using the drug again» in patients who have progressed on it.
He believes that the progression was not because of any resistance per se but rather a slowing down of the adaptive immune response.
“It’s just that it needs a boost,” he said, while noting that tissue specimens will nevertheless be required to demonstrate the theory.
Peters agreed that these results are “very promising,” but questioned their overall significance, as it is “a very small number of patients” from a subset whose disease was controlled while on treatment and then progressed after stopping.
She also pointed out that, in another study in patients with lung cancer (CheckMate-153), some patients were rechallenged with immunotherapy after having stopped treatment at 1 year “with very poor results.”
Peters said studies in melanoma have shown “rechallenge can be useful in a significant proportion of patients, but still you have not demonstrated that stopping and rechallenging is the same as not stopping.”
Study Details
KEYNOTE-010 involved patients with NSCLC from 202 centers in 24 countries with stage IIIB/IV disease expressing PD-L1 who had experienced disease progression after at least two cycles of platinum-based chemotherapy.
They were randomized 1:1:1 to open-label pembrolizumab 2 mg/kg, pembrolizumab 10 mg/kg, or docetaxel 75 mg/m2 every 3 weeks.
Pembrolizumab was continued for 35 treatment cycles over 2 years and docetaxel was continued for the maximum duration allowed by local regulators.
Patients who stopped pembrolizumab after a complete response or completing all 35 cycles, and who subsequently experienced disease progression, could receive up to 17 additional cycles over 1 year if they had not received another anticancer therapy in the meantime.
Among the 1,034 patients originally recruited between August 2013 and February 2015, 691 were assigned to pembrolizumab at 3 mg/kg or 10 mg/kg and 343 to docetaxel.
For the intention-to-treat analysis in 1033 patients, the mean duration of follow-up was 42.6 months, with a median treatment duration of 3.5 months in the pembrolizumab group and 2.0 months in the docetaxel group.
Compared with docetaxel, pembrolizumab was associated with a significant reduction in the risk of death, at a hazard ratio of 0.53 in patients with PD-L1 ≥ 50% and 0.69 in those with PD-L1 ≥ 1% (both P < .0001).
In patients with PD-L1 ≥ 50%, median overall survival was 16.9 months in those given pembrolizumab and 8.2 months with docetaxel. Among those with PD-L1 ≥ 1%, median overall survival was 11.8 months with pembrolizumab versus 8.4 months with docetaxel.
Overall survival on Kaplan-Meier analysis was 34.5% with pembrolizumab and 12.7% with docetaxel in the PD-L1 ≥ 50% group, and 22.9% versus 11.0% in the PD-L1 ≥ 1% group.
PFS significantly improved with pembrolizumab versus docetaxel, at a hazard ratio of 0.57 (P < .00001) among patients with PD-L1 ≥ 50% and 0.83 (P < .005) in those with PD-L1 ≥ 1%.
In terms of safety, 17.7% of patients who completed 2 years of pembrolizumab had grade 3-5 treatment-related adverse events, compared with 16.6% among all pembrolizumab-treated patients and 36.6% of those given docetaxel.
The team reports that 79 patients completed 35 cycles of pembrolizumab, with a median follow-up of 43.4 months.
Compared with the overall patient group, these patients were less likely to be aged ≥ 65 years and to have received two or more prior treatment lines, although they were more likely to be current or former smokers and to have squamous tumor histology.
Patients who completed 35 cycles had an objective response rate of 94.9%, and 91.0% were still alive at the data cutoff. Overall survival rates were 98.7% at 12 months and 86.3% at 24 months.
Of 71 patients eligible for analysis, 23 experienced progression after completing pembrolizumab, at PFS rates at 12 and 24 months of 72.5% and 57.7%, respectively.
A total of 14 patients were given a second course of pembrolizumab, of whom six had a partial response and five had stable disease. At the data cutoff, five patients had completed 17 additional cycles and 11 were alive.
Pembro Approved at Fixed Dose
One notable aspect of the study is that patients in the pembrolizumab arm were given two different doses of the drug based on body weight, whereas the drug is approved in the United States at a fixed dose of 200 mg.
Herbst told Medscape Medical News he considers the 200-mg dose to be appropriate.
“I didn’t think that the 3-mg versus 10-mg dose per kg that we used in our study made much difference in an average-sized person,” he said, adding that the 200-mg dose “is something a little bit more than 3 mg/kg.”
“So I think that this is clearly the right dos, and I don’t think more would make any difference,” he said.
The study was funded by Merck, the manufacturer of pembrolizumab. Herbst has reported having a consulting or advisory role for many pharmaceutical companies. Other coauthors have also reported relationships with industry, and some of the authors are Merck employees. Peters has reported receiving education grants, providing consultation, attending advisory boards, and/or providing lectures for many pharmaceutical companies.
This article first appeared on Medscape.com.
Latent diabetes warrants earlier, tighter glycemic control
according a post hoc analysis of a large European database.
However, Ernesto Maddaloni, MD, of Sapienza University of Rome and University of Oxford (England), and colleagues noted that the risk is less than half that in patients with type 2 disease during the first several years after diagnosis but that, after 9 years, the risk curves cross over, and patients with latent autoimmune diabetes of adulthood (LADA) matriculate to a 25% greater risk microvascular complications than do their type 2 counterparts.
The results point to a need for tighter glycemic control in patients with latent autoimmune disease and “might have relevant implications for the understanding of the differential risk of complications between type 2 diabetes and autoimmune diabetes in general,” the researchers wrote online in The Lancet Diabetes & Endocrinology. They emphasized that the study represents the largest population of patients with latent autoimmune diabetes with the longest follow-up in a randomized controlled trial so far.
Diabetic microvascular complications are a major cause of end-stage renal disease and blindness in LADA, therefore, “implementing strict glycemic control from the time of diagnosis could reduce the later risk of microvascular complications in [these patients],” the authors wrote.
The researchers analyzed 30 years of data from the United Kingdom Prospective Diabetes Study, focusing on 564 patients with LADA and 4,464 adults with type 2 diabetes. The primary outcome was first occurrence of renal failure, death from renal disease, blindness in one eye, vitreous hemorrhage, or retinal laser treatment.
With a median follow-up of 17.3 years, 21% of all patients (1,041) developed microvascular complications, of which there were 65 renal events and 976 retinopathy events. Secondary outcomes were nephropathy and retinopathy.
The study measured incidence in 1,000 person-years and found that the incidence for the overall primary composite microvascular outcome was 5.3% for LADA and 10% for type 2 diabetes in the first 9 years after diagnosis (P = .0020), but 13.6% and 9.2%, respectively, after that (P less than .0001). That translated into adjusted hazard ratios of 0.45 for LADA, compared with type 2 diabetes, in the first 9 years (P less than .0001) and 1.25 beyond 9 years (P = .047). The incidence of retinopathy events was 5.3% for LADA and 9.6% for type 2 diabetes up to 9 years (P = .003), and 12.5% and 8.6% thereafter (P = .001). Nephropathy rates were similar in both groups at 1.3% or less.
“The lower risk of microvascular complications during the first years after the diagnosis of latent autoimmune diabetes needs further examination,” Dr. Maddaloni and colleagues wrote.
They cautioned that LADA is often misdiagnosed as a form of type 1 diabetes. “Therefore, latent autoimmune diabetes could be the right bench test for studying differences between autoimmune diabetes and type 2 diabetes, because of fewer disparities in age and disease duration than with the comparison of type 1 diabetes and type 2 diabetes,” they wrote.
In an accompanying editorial, Didac Mauricio, MD, of the Autonomous University of Barcelona, credited Dr. Maddaloni and colleagues with presenting evidence “of major relevance” in an adequately powered study that provided “a robust conclusion” about the risk of microvascular complications in latent autoimmune diabetes.
Dr. Mauricio noted that the study adds to the literature that different subgroups of type 2 diabetes patients exist and highlights the distinct characteristics of latent autoimmune diabetes. In addition, it builds on a previous study by Dr. Maddaloni and coauthors that found cardiovascular disease outcomes did not differ between latent autoimmune and type 2 diabetes (Diabetes Obes Metab. 2019;21:2115-22), he wrote. The research team’s most recent findings “emphasize the need for early identification of latent autoimmune disease,” he stated.
The findings also raise important questions about screening all patients for antibodies upon diagnosis of diabetes, he said. “I firmly believe that it is time to take action,” first, because antibody testing is likely cost-effective and cost-saving because it facilitates better-informed, more timely decisions early in the disease trajectory, and second, it has already been well documented that patients with latent autoimmune diabetes have a higher glycemic burden.
An alternative to early universal screening for antibodies would be to raise awareness, especially among general practitioners, about the importance of timely diagnosis of LADA, Dr. Mauricio added.
The study received funding from the European Foundation for the Study of Diabetes Mentorship Program, supported by AstraZeneca. Dr. Maddaloni disclosed financial relationships with Sanofi, Eli Lilly, Abbott, and AstraZeneca. Another author disclosed financial relationships with Boehringer Ingelheim, Merck, Bayer, AstraZeneca, Novartis, and Novo Nordisk. All the other authors had no relevant financial relationships to disclose. Dr. Mauricio disclosed financial relationships with AstraZeneca, Eli Lilly, Merck Sharp & Dohme, NovoNordisk, Sanofi, Almirall, Boehringer Ingelheim, Eli Lilly, Ferrer, Janssen, Menarini, and URGO.
SOURCE: Maddaloni E et al. Lancet Diabetes Endocrinol. 2020 Feb 4. doi: 0.1016/S2213-8587(20)30003-6.
according a post hoc analysis of a large European database.
However, Ernesto Maddaloni, MD, of Sapienza University of Rome and University of Oxford (England), and colleagues noted that the risk is less than half that in patients with type 2 disease during the first several years after diagnosis but that, after 9 years, the risk curves cross over, and patients with latent autoimmune diabetes of adulthood (LADA) matriculate to a 25% greater risk microvascular complications than do their type 2 counterparts.
The results point to a need for tighter glycemic control in patients with latent autoimmune disease and “might have relevant implications for the understanding of the differential risk of complications between type 2 diabetes and autoimmune diabetes in general,” the researchers wrote online in The Lancet Diabetes & Endocrinology. They emphasized that the study represents the largest population of patients with latent autoimmune diabetes with the longest follow-up in a randomized controlled trial so far.
Diabetic microvascular complications are a major cause of end-stage renal disease and blindness in LADA, therefore, “implementing strict glycemic control from the time of diagnosis could reduce the later risk of microvascular complications in [these patients],” the authors wrote.
The researchers analyzed 30 years of data from the United Kingdom Prospective Diabetes Study, focusing on 564 patients with LADA and 4,464 adults with type 2 diabetes. The primary outcome was first occurrence of renal failure, death from renal disease, blindness in one eye, vitreous hemorrhage, or retinal laser treatment.
With a median follow-up of 17.3 years, 21% of all patients (1,041) developed microvascular complications, of which there were 65 renal events and 976 retinopathy events. Secondary outcomes were nephropathy and retinopathy.
The study measured incidence in 1,000 person-years and found that the incidence for the overall primary composite microvascular outcome was 5.3% for LADA and 10% for type 2 diabetes in the first 9 years after diagnosis (P = .0020), but 13.6% and 9.2%, respectively, after that (P less than .0001). That translated into adjusted hazard ratios of 0.45 for LADA, compared with type 2 diabetes, in the first 9 years (P less than .0001) and 1.25 beyond 9 years (P = .047). The incidence of retinopathy events was 5.3% for LADA and 9.6% for type 2 diabetes up to 9 years (P = .003), and 12.5% and 8.6% thereafter (P = .001). Nephropathy rates were similar in both groups at 1.3% or less.
“The lower risk of microvascular complications during the first years after the diagnosis of latent autoimmune diabetes needs further examination,” Dr. Maddaloni and colleagues wrote.
They cautioned that LADA is often misdiagnosed as a form of type 1 diabetes. “Therefore, latent autoimmune diabetes could be the right bench test for studying differences between autoimmune diabetes and type 2 diabetes, because of fewer disparities in age and disease duration than with the comparison of type 1 diabetes and type 2 diabetes,” they wrote.
In an accompanying editorial, Didac Mauricio, MD, of the Autonomous University of Barcelona, credited Dr. Maddaloni and colleagues with presenting evidence “of major relevance” in an adequately powered study that provided “a robust conclusion” about the risk of microvascular complications in latent autoimmune diabetes.
Dr. Mauricio noted that the study adds to the literature that different subgroups of type 2 diabetes patients exist and highlights the distinct characteristics of latent autoimmune diabetes. In addition, it builds on a previous study by Dr. Maddaloni and coauthors that found cardiovascular disease outcomes did not differ between latent autoimmune and type 2 diabetes (Diabetes Obes Metab. 2019;21:2115-22), he wrote. The research team’s most recent findings “emphasize the need for early identification of latent autoimmune disease,” he stated.
The findings also raise important questions about screening all patients for antibodies upon diagnosis of diabetes, he said. “I firmly believe that it is time to take action,” first, because antibody testing is likely cost-effective and cost-saving because it facilitates better-informed, more timely decisions early in the disease trajectory, and second, it has already been well documented that patients with latent autoimmune diabetes have a higher glycemic burden.
An alternative to early universal screening for antibodies would be to raise awareness, especially among general practitioners, about the importance of timely diagnosis of LADA, Dr. Mauricio added.
The study received funding from the European Foundation for the Study of Diabetes Mentorship Program, supported by AstraZeneca. Dr. Maddaloni disclosed financial relationships with Sanofi, Eli Lilly, Abbott, and AstraZeneca. Another author disclosed financial relationships with Boehringer Ingelheim, Merck, Bayer, AstraZeneca, Novartis, and Novo Nordisk. All the other authors had no relevant financial relationships to disclose. Dr. Mauricio disclosed financial relationships with AstraZeneca, Eli Lilly, Merck Sharp & Dohme, NovoNordisk, Sanofi, Almirall, Boehringer Ingelheim, Eli Lilly, Ferrer, Janssen, Menarini, and URGO.
SOURCE: Maddaloni E et al. Lancet Diabetes Endocrinol. 2020 Feb 4. doi: 0.1016/S2213-8587(20)30003-6.
according a post hoc analysis of a large European database.
However, Ernesto Maddaloni, MD, of Sapienza University of Rome and University of Oxford (England), and colleagues noted that the risk is less than half that in patients with type 2 disease during the first several years after diagnosis but that, after 9 years, the risk curves cross over, and patients with latent autoimmune diabetes of adulthood (LADA) matriculate to a 25% greater risk microvascular complications than do their type 2 counterparts.
The results point to a need for tighter glycemic control in patients with latent autoimmune disease and “might have relevant implications for the understanding of the differential risk of complications between type 2 diabetes and autoimmune diabetes in general,” the researchers wrote online in The Lancet Diabetes & Endocrinology. They emphasized that the study represents the largest population of patients with latent autoimmune diabetes with the longest follow-up in a randomized controlled trial so far.
Diabetic microvascular complications are a major cause of end-stage renal disease and blindness in LADA, therefore, “implementing strict glycemic control from the time of diagnosis could reduce the later risk of microvascular complications in [these patients],” the authors wrote.
The researchers analyzed 30 years of data from the United Kingdom Prospective Diabetes Study, focusing on 564 patients with LADA and 4,464 adults with type 2 diabetes. The primary outcome was first occurrence of renal failure, death from renal disease, blindness in one eye, vitreous hemorrhage, or retinal laser treatment.
With a median follow-up of 17.3 years, 21% of all patients (1,041) developed microvascular complications, of which there were 65 renal events and 976 retinopathy events. Secondary outcomes were nephropathy and retinopathy.
The study measured incidence in 1,000 person-years and found that the incidence for the overall primary composite microvascular outcome was 5.3% for LADA and 10% for type 2 diabetes in the first 9 years after diagnosis (P = .0020), but 13.6% and 9.2%, respectively, after that (P less than .0001). That translated into adjusted hazard ratios of 0.45 for LADA, compared with type 2 diabetes, in the first 9 years (P less than .0001) and 1.25 beyond 9 years (P = .047). The incidence of retinopathy events was 5.3% for LADA and 9.6% for type 2 diabetes up to 9 years (P = .003), and 12.5% and 8.6% thereafter (P = .001). Nephropathy rates were similar in both groups at 1.3% or less.
“The lower risk of microvascular complications during the first years after the diagnosis of latent autoimmune diabetes needs further examination,” Dr. Maddaloni and colleagues wrote.
They cautioned that LADA is often misdiagnosed as a form of type 1 diabetes. “Therefore, latent autoimmune diabetes could be the right bench test for studying differences between autoimmune diabetes and type 2 diabetes, because of fewer disparities in age and disease duration than with the comparison of type 1 diabetes and type 2 diabetes,” they wrote.
In an accompanying editorial, Didac Mauricio, MD, of the Autonomous University of Barcelona, credited Dr. Maddaloni and colleagues with presenting evidence “of major relevance” in an adequately powered study that provided “a robust conclusion” about the risk of microvascular complications in latent autoimmune diabetes.
Dr. Mauricio noted that the study adds to the literature that different subgroups of type 2 diabetes patients exist and highlights the distinct characteristics of latent autoimmune diabetes. In addition, it builds on a previous study by Dr. Maddaloni and coauthors that found cardiovascular disease outcomes did not differ between latent autoimmune and type 2 diabetes (Diabetes Obes Metab. 2019;21:2115-22), he wrote. The research team’s most recent findings “emphasize the need for early identification of latent autoimmune disease,” he stated.
The findings also raise important questions about screening all patients for antibodies upon diagnosis of diabetes, he said. “I firmly believe that it is time to take action,” first, because antibody testing is likely cost-effective and cost-saving because it facilitates better-informed, more timely decisions early in the disease trajectory, and second, it has already been well documented that patients with latent autoimmune diabetes have a higher glycemic burden.
An alternative to early universal screening for antibodies would be to raise awareness, especially among general practitioners, about the importance of timely diagnosis of LADA, Dr. Mauricio added.
The study received funding from the European Foundation for the Study of Diabetes Mentorship Program, supported by AstraZeneca. Dr. Maddaloni disclosed financial relationships with Sanofi, Eli Lilly, Abbott, and AstraZeneca. Another author disclosed financial relationships with Boehringer Ingelheim, Merck, Bayer, AstraZeneca, Novartis, and Novo Nordisk. All the other authors had no relevant financial relationships to disclose. Dr. Mauricio disclosed financial relationships with AstraZeneca, Eli Lilly, Merck Sharp & Dohme, NovoNordisk, Sanofi, Almirall, Boehringer Ingelheim, Eli Lilly, Ferrer, Janssen, Menarini, and URGO.
SOURCE: Maddaloni E et al. Lancet Diabetes Endocrinol. 2020 Feb 4. doi: 0.1016/S2213-8587(20)30003-6.
FROM THE LANCET DIABETES & ENDOCRINOLOGY
Prescription cascade more likely after CCBs than other hypertension meds
Elderly adults with hypertension who are newly prescribed a calcium-channel blocker (CCB), compared to other antihypertensive agents, are at least twice as likely to be given a loop diuretic over the following months, a large cohort study suggests.
The likelihood remained elevated for as long as a year after the start of a CCB and was more pronounced when comparing CCBs to any other kind of medication.
“Our findings suggest that many older adults who begin taking a CCB may subsequently experience a prescribing cascade” when loop diuretics are prescribed for peripheral edema, a known CCB adverse effect, that is misinterpreted as a new medical condition, Rachel D. Savage, PhD, Women’s College Hospital, Toronto, Canada, told theheart.org/Medscape Cardiology.
Edema caused by CCBs is caused by fluid redistribution, not overload, and “treating euvolemic individuals with a diuretic places them at increased risk of overdiuresis, leading to falls, urinary incontinence, acute kidney injury, electrolyte imbalances, and a cascade of other downstream consequences to which older adults are especially vulnerable,” explain Savage and coauthors of the analysis published online February 24 in JAMA Internal Medicine.
However, 1.4% of the cohort had been prescribed a loop diuretic, and 4.5% had been given any diuretic within 90 days after the start of CCBs. The corresponding rates were 0.7% and 3.4%, respectively, for patients who had started on ACE inhibitors or angiotensin receptor blocker (ARB) rather than a CCB.
Also, Savage observed, “the likelihood of being prescribed a loop diuretic following initiation of a CCB changed over time and was greatest 61 to 90 days postinitiation.” At that point, it was increased 2.4 times compared with initiation of an ACE inhibitor or an ARB in an adjusted analysis and increased almost 4 times compared with starting on any non-CCB agent.
Importantly, the actual prevalence of peripheral edema among those started on CCBs, ACE inhibitors, ARBs, or any non-CCB medication was not available in the data sets.
However, “the main message for clinicians is to consider medication side effects as a potential cause for new symptoms when patients present. We also encourage patients to ask prescribers about whether new symptoms could be caused by a medication,” senior author Lisa M. McCarthy, PharmD, told theheart.org/Medscape Cardiology.
“If a patient experiences peripheral edema while taking a CCB, we would encourage clinicians to consider whether the calcium-channel blocker is still necessary, whether it could be discontinued or the dose reduced, or whether the patient can be switched to another therapy,” she said.
Based on the current analysis, if the rate of CCB-induced peripheral edema is assumed to be 10%, which is consistent with the literature, then “potentially 7% to 14% of people who develop edema while taking a calcium channel blocker may then receive a loop diuretic,” an accompanying editorial notes.
“Patients with polypharmacy are at heightened risk of being exposed to [a] series of prescribing cascades if their current use of medications is not carefully discussed before the decision to add a new antihypertensive,” observe Timothy S. Anderson, MD, Beth Israel Deaconess Medical Center, Boston, Massachusetts, and Michael A. Steinman, MD, San Francisco Veterans Affairs Medical Center and University of California, San Francisco.
“The initial prescribing cascade can set off many other negative consequences, including adverse drug events, potentially avoidable diagnostic testing, and hospitalizations,” the editorialists caution.
“Identifying prescribing cascades and their consequences is an important step to stem the tide of polypharmacy and inform deprescribing efforts.”
The analysis was based on administrative data from almost 340,000 adults in the community aged 66 years or older with hypertension and new drug prescriptions over 5 years ending in September 2016, the report notes. Their mean age was 74.5 years and 56.5% were women.
The data set included 41,086 patients who were newly prescribed a CCB; 66,494 who were newly prescribed an ACE inhibitor or ARB; and 231,439 newly prescribed any medication other than a CCB. The prescribed CCB was amlodipine in 79.6% of patients.
Although loop diuretics could possibly have been prescribed sometimes as a second-tier antihypertensive in the absence of peripheral edema, “we made efforts, through the design of our study, to limit this where possible,” Savage said in an interview.
For example, the focus was on loop diuretics, which aren’t generally recommended for blood-pressure lowering. Also, patients with heart failure and those with a recent history of diuretic or other antihypertensive medication use had been excluded, she said.
“As such, our cohort comprised individuals with new-onset or milder hypertension for whom diuretics would unlikely to be prescribed as part of guideline-based hypertension management.”
Although amlodipine was the most commonly prescribed CCB, the potential for a prescribing cascade seemed to be a class effect and to apply at a range of dosages.
That was unexpected, McCarthy observed, because “peripheral edema occurs more commonly in people taking dihydropyridine CCBs, like amlodipine, compared to non–dihydropyridine CCBs, such as verapamil and diltiazem.”
Savage, McCarthy, their coauthors, and the editorialists have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Elderly adults with hypertension who are newly prescribed a calcium-channel blocker (CCB), compared to other antihypertensive agents, are at least twice as likely to be given a loop diuretic over the following months, a large cohort study suggests.
The likelihood remained elevated for as long as a year after the start of a CCB and was more pronounced when comparing CCBs to any other kind of medication.
“Our findings suggest that many older adults who begin taking a CCB may subsequently experience a prescribing cascade” when loop diuretics are prescribed for peripheral edema, a known CCB adverse effect, that is misinterpreted as a new medical condition, Rachel D. Savage, PhD, Women’s College Hospital, Toronto, Canada, told theheart.org/Medscape Cardiology.
Edema caused by CCBs is caused by fluid redistribution, not overload, and “treating euvolemic individuals with a diuretic places them at increased risk of overdiuresis, leading to falls, urinary incontinence, acute kidney injury, electrolyte imbalances, and a cascade of other downstream consequences to which older adults are especially vulnerable,” explain Savage and coauthors of the analysis published online February 24 in JAMA Internal Medicine.
However, 1.4% of the cohort had been prescribed a loop diuretic, and 4.5% had been given any diuretic within 90 days after the start of CCBs. The corresponding rates were 0.7% and 3.4%, respectively, for patients who had started on ACE inhibitors or angiotensin receptor blocker (ARB) rather than a CCB.
Also, Savage observed, “the likelihood of being prescribed a loop diuretic following initiation of a CCB changed over time and was greatest 61 to 90 days postinitiation.” At that point, it was increased 2.4 times compared with initiation of an ACE inhibitor or an ARB in an adjusted analysis and increased almost 4 times compared with starting on any non-CCB agent.
Importantly, the actual prevalence of peripheral edema among those started on CCBs, ACE inhibitors, ARBs, or any non-CCB medication was not available in the data sets.
However, “the main message for clinicians is to consider medication side effects as a potential cause for new symptoms when patients present. We also encourage patients to ask prescribers about whether new symptoms could be caused by a medication,” senior author Lisa M. McCarthy, PharmD, told theheart.org/Medscape Cardiology.
“If a patient experiences peripheral edema while taking a CCB, we would encourage clinicians to consider whether the calcium-channel blocker is still necessary, whether it could be discontinued or the dose reduced, or whether the patient can be switched to another therapy,” she said.
Based on the current analysis, if the rate of CCB-induced peripheral edema is assumed to be 10%, which is consistent with the literature, then “potentially 7% to 14% of people who develop edema while taking a calcium channel blocker may then receive a loop diuretic,” an accompanying editorial notes.
“Patients with polypharmacy are at heightened risk of being exposed to [a] series of prescribing cascades if their current use of medications is not carefully discussed before the decision to add a new antihypertensive,” observe Timothy S. Anderson, MD, Beth Israel Deaconess Medical Center, Boston, Massachusetts, and Michael A. Steinman, MD, San Francisco Veterans Affairs Medical Center and University of California, San Francisco.
“The initial prescribing cascade can set off many other negative consequences, including adverse drug events, potentially avoidable diagnostic testing, and hospitalizations,” the editorialists caution.
“Identifying prescribing cascades and their consequences is an important step to stem the tide of polypharmacy and inform deprescribing efforts.”
The analysis was based on administrative data from almost 340,000 adults in the community aged 66 years or older with hypertension and new drug prescriptions over 5 years ending in September 2016, the report notes. Their mean age was 74.5 years and 56.5% were women.
The data set included 41,086 patients who were newly prescribed a CCB; 66,494 who were newly prescribed an ACE inhibitor or ARB; and 231,439 newly prescribed any medication other than a CCB. The prescribed CCB was amlodipine in 79.6% of patients.
Although loop diuretics could possibly have been prescribed sometimes as a second-tier antihypertensive in the absence of peripheral edema, “we made efforts, through the design of our study, to limit this where possible,” Savage said in an interview.
For example, the focus was on loop diuretics, which aren’t generally recommended for blood-pressure lowering. Also, patients with heart failure and those with a recent history of diuretic or other antihypertensive medication use had been excluded, she said.
“As such, our cohort comprised individuals with new-onset or milder hypertension for whom diuretics would unlikely to be prescribed as part of guideline-based hypertension management.”
Although amlodipine was the most commonly prescribed CCB, the potential for a prescribing cascade seemed to be a class effect and to apply at a range of dosages.
That was unexpected, McCarthy observed, because “peripheral edema occurs more commonly in people taking dihydropyridine CCBs, like amlodipine, compared to non–dihydropyridine CCBs, such as verapamil and diltiazem.”
Savage, McCarthy, their coauthors, and the editorialists have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Elderly adults with hypertension who are newly prescribed a calcium-channel blocker (CCB), compared to other antihypertensive agents, are at least twice as likely to be given a loop diuretic over the following months, a large cohort study suggests.
The likelihood remained elevated for as long as a year after the start of a CCB and was more pronounced when comparing CCBs to any other kind of medication.
“Our findings suggest that many older adults who begin taking a CCB may subsequently experience a prescribing cascade” when loop diuretics are prescribed for peripheral edema, a known CCB adverse effect, that is misinterpreted as a new medical condition, Rachel D. Savage, PhD, Women’s College Hospital, Toronto, Canada, told theheart.org/Medscape Cardiology.
Edema caused by CCBs is caused by fluid redistribution, not overload, and “treating euvolemic individuals with a diuretic places them at increased risk of overdiuresis, leading to falls, urinary incontinence, acute kidney injury, electrolyte imbalances, and a cascade of other downstream consequences to which older adults are especially vulnerable,” explain Savage and coauthors of the analysis published online February 24 in JAMA Internal Medicine.
However, 1.4% of the cohort had been prescribed a loop diuretic, and 4.5% had been given any diuretic within 90 days after the start of CCBs. The corresponding rates were 0.7% and 3.4%, respectively, for patients who had started on ACE inhibitors or angiotensin receptor blocker (ARB) rather than a CCB.
Also, Savage observed, “the likelihood of being prescribed a loop diuretic following initiation of a CCB changed over time and was greatest 61 to 90 days postinitiation.” At that point, it was increased 2.4 times compared with initiation of an ACE inhibitor or an ARB in an adjusted analysis and increased almost 4 times compared with starting on any non-CCB agent.
Importantly, the actual prevalence of peripheral edema among those started on CCBs, ACE inhibitors, ARBs, or any non-CCB medication was not available in the data sets.
However, “the main message for clinicians is to consider medication side effects as a potential cause for new symptoms when patients present. We also encourage patients to ask prescribers about whether new symptoms could be caused by a medication,” senior author Lisa M. McCarthy, PharmD, told theheart.org/Medscape Cardiology.
“If a patient experiences peripheral edema while taking a CCB, we would encourage clinicians to consider whether the calcium-channel blocker is still necessary, whether it could be discontinued or the dose reduced, or whether the patient can be switched to another therapy,” she said.
Based on the current analysis, if the rate of CCB-induced peripheral edema is assumed to be 10%, which is consistent with the literature, then “potentially 7% to 14% of people who develop edema while taking a calcium channel blocker may then receive a loop diuretic,” an accompanying editorial notes.
“Patients with polypharmacy are at heightened risk of being exposed to [a] series of prescribing cascades if their current use of medications is not carefully discussed before the decision to add a new antihypertensive,” observe Timothy S. Anderson, MD, Beth Israel Deaconess Medical Center, Boston, Massachusetts, and Michael A. Steinman, MD, San Francisco Veterans Affairs Medical Center and University of California, San Francisco.
“The initial prescribing cascade can set off many other negative consequences, including adverse drug events, potentially avoidable diagnostic testing, and hospitalizations,” the editorialists caution.
“Identifying prescribing cascades and their consequences is an important step to stem the tide of polypharmacy and inform deprescribing efforts.”
The analysis was based on administrative data from almost 340,000 adults in the community aged 66 years or older with hypertension and new drug prescriptions over 5 years ending in September 2016, the report notes. Their mean age was 74.5 years and 56.5% were women.
The data set included 41,086 patients who were newly prescribed a CCB; 66,494 who were newly prescribed an ACE inhibitor or ARB; and 231,439 newly prescribed any medication other than a CCB. The prescribed CCB was amlodipine in 79.6% of patients.
Although loop diuretics could possibly have been prescribed sometimes as a second-tier antihypertensive in the absence of peripheral edema, “we made efforts, through the design of our study, to limit this where possible,” Savage said in an interview.
For example, the focus was on loop diuretics, which aren’t generally recommended for blood-pressure lowering. Also, patients with heart failure and those with a recent history of diuretic or other antihypertensive medication use had been excluded, she said.
“As such, our cohort comprised individuals with new-onset or milder hypertension for whom diuretics would unlikely to be prescribed as part of guideline-based hypertension management.”
Although amlodipine was the most commonly prescribed CCB, the potential for a prescribing cascade seemed to be a class effect and to apply at a range of dosages.
That was unexpected, McCarthy observed, because “peripheral edema occurs more commonly in people taking dihydropyridine CCBs, like amlodipine, compared to non–dihydropyridine CCBs, such as verapamil and diltiazem.”
Savage, McCarthy, their coauthors, and the editorialists have disclosed no relevant financial relationships.
This article first appeared on Medscape.com.
Varied nightly bedtime, sleep duration linked to CVD risk
People who frequently alter the amount of sleep and time they go to bed each night are twofold more likely to develop cardiovascular disease, independent of traditional CVD risk factors, new research suggests.
Prior studies have focused on shift workers because night shift work will influence circadian rhythm and increase CVD risk. But it is increasingly recognized that circadian disruption may occur outside of shift work and accumulate over time, particularly given modern lifestyle factors such as increased use of mobile devices and television at night, said study coauthor Tianyi Huang, ScD, MSc, of Brigham and Women’s Hospital and Harvard Medical School in Boston, Massachusetts.
“Even if they tend to go to sleep at certain times, by following that lifestyle or behavior, it can interfere with their planned sleep timing,” he said.
“One thing that surprised me in this sample is that about one third of participants have irregular sleep patterns that can put them at increased risk of cardiovascular disease. So I think the prevalence is higher than expected,” Huang added.
As reported today in the Journal of the American College of Cardiology, the investigators used data from 7-day wrist actigraphy, 1 night of at-home polysomnography, and sleep questionnaires to assess sleep duration and sleep-onset timing among 1,992 Multi-Ethnic Study of Atherosclerosis () participants, aged 45 to 84 years, who were free of CVD and prospectively followed for a me MESA dian of 4.9 years.
A total of 786 patients (39.5%) had sleep duration standard deviation (SD) > 90 minutes and 510 (25.6%) had sleep-onset timing SD > 90 minutes.
During follow-up, there were 111 incident CVD events, including myocardial infarction, coronary heart disease death, stroke, and other coronary events.
Compared with people who had less than 1 hour of variation in sleep duration, the risk for incident CVD was 9% higher for people whose sleep duration varied 61 to 90 minutes (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.62 - 1.92), even after controlling for a variety of cardiovascular and sleep-related risk factors such as body mass index, systolic blood pressure, smoking status, total cholesterol, average sleep duration, insomnia symptoms, and sleep apnea.
Moreover, the adjusted CVD risk was substantially increased with 91 to 120 minutes of variation (HR, 1.59; 95% CI, 0.91 - 2.76) and more than 120 minutes of variation in sleep duration (HR, 2.14; 95% CI, 1.24 - 3.68).
Every 1-hour increase in sleep duration SD was associated with 36% higher CVD risk (95% CI; 1.07 - 1.73).
Compared with people with no more than a half hour of variation in nightly bedtimes, the adjusted hazard ratios for CVD were 1.16 (95% CI, 0.64 - 2.13), 1.52 (95% CI, 0.81 - 2.88), and 2.11 (95% CI, 1.13 - 3.91) when bedtimes varied by 31 to 60 minutes, 61 to 90 minutes, and more than 90 minutes.
For every 1-hour increase in sleep-onset timing SD, the risk of CVD was 18% higher (95% CI; 1.06 - 1.31).
“The results are similar for the regularity of sleep timing and the regularity of sleep duration, which means that both can contribute to circadian disruption and then lead to development of cardiovascular disease,” Huang said.
This is an important article and signals how sleep is an important marker and possibly a mediator of cardiovascular risk, said Harlan Krumholz, MD, of Yale School of Medicine in New Haven, Connecticut, who was not involved with the study.
“What I like about this is it’s a nice longitudinal, epidemiologic study with not just self-report, but sensor-detected sleep, that has been correlated with well-curated and adjudicated outcomes to give us a strong sense of this association,” he told theheart.org/Medscape Cardiology. “And also, that it goes beyond just the duration — they combine the duration and timing in order to give a fuller picture of sleep.”
Nevertheless, Krumholz said researchers are only at the beginning of being able to quantify the various dimensions of sleep and the degree to which sleep is a reflection of underlying physiologic issues, or whether patients are having erratic sleep patterns that are having a toxic effect on their overall health.
Questions also remain about the mechanism behind the association, whether the increased risk is universal or more harmful for some people, and the best way to measure factors during sleep that can most comprehensively and precisely predict risk.
“As we get more information flowing in from sensors, I think we will begin to develop more sophisticated approaches toward understanding risk, and it will be accompanied by other studies that will help us understand whether, again, this is a reflection of other processes that we should be paying attention to or whether it is a cause of disease and risk,” Krumholz said.
Subgroup analyses suggested positive associations between irregular sleep and CVD in African Americans, Hispanics, and Chinese Americans but not in whites. This could be because sleep irregularity, both timing and duration, was substantially higher in minorities, especially African Americans, but may also be as a result of chance because the study sample is relatively small, Huang explained.
The authors note that the overall findings are biologically plausible because of their previous work linking sleep irregularity with metabolic risk factors that predispose to atherosclerosis, such as obesity, diabetes, and hypertension. Participants with irregular sleep tended to have worse baseline cardiometabolic profiles, but this only explained a small portion of the associations between sleep irregularity and CVD, they note.
Other possible explanations include circadian clock genes, such as clock, per2 and bmal1, which have been shown experimentally to control a broad range of cardiovascular functions, from blood pressure and endothelial functions to vascular thrombosis and cardiac remodeling.
Irregular sleep may also influence the rhythms of the autonomic nervous system, and behavioral rhythms with regard to timing and/or amount of eating or exercise.
Further research is needed to understand the mechanisms driving the associations, the impact of sleep irregularity on individual CVD outcomes, and to determine whether a 7-day SD of more than 90 minutes for either sleep duration or sleep-onset timing can be used clinically as a threshold target for promoting cardiometabolically healthy sleep, Huang said.
“When providers communicate with their patients regarding strategies for CVD prevention, usually they focus on healthy diet and physical activity; and even when they talk about sleep, they talk about whether they have good sleep quality or sufficient sleep,” he said. “But one thing they should provide is advice regarding sleep regularity and [they should] recommend their patients follow a regular sleep pattern for the purpose of cardiovascular prevention.”
In a related editorial, Olaf Oldenburg, MD, Luderus-Kliniken Münster, Clemenshospital, Münster, Germany, and Jens Spiesshoefer, MD, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy, write that the observed independent association between sleep irregularity and CVD “is a particularly striking finding given that impaired circadian rhythm is likely to be much more prevalent than the extreme example of shift work.”
They call on researchers to utilize big data to facilitate understanding of the association and say it is essential to test whether experimental data support the hypothesis that altered circadian rhythms would translate into unfavorable changes in 24-hour sympathovagal and neurohormonal balance, and ultimately CVD.
The present study “will, and should, stimulate much needed additional research on the association between sleep and CVD that may offer novel approaches to help improve the prognosis and daily symptom burden of patients with CVD, and might make sleep itself a therapeutic target in CVD,” the editorialists conclude.
This research was supported by contracts from the National Heart, Lung, and Blood Institute (NHLBI), and by grants from the National Center for Advancing Translational Sciences. The MESA Sleep Study was supported by an NHLBI grant. Huang was supported by a career development grant from the National Institutes of Health.
Krumholz and Oldenburg have disclosed no relevant financial relationships. Spiesshoefer is supported by grants from the Else-Kröner-Fresenius Stiftung, the Innovative Medical Research program at the University of Münster, and Deutsche Herzstiftung; and by young investigator research support from Scuola Superiore Sant’Anna Pisa. He also has received travel grants and lecture honoraria from Boehringer Ingelheim and Chiesi.
Source: J Am Coll Cardiol. 2020 Mar 2. doi: 10.1016/j.jacc.2019.12.054.
This article first appeared on Medscape.com.
People who frequently alter the amount of sleep and time they go to bed each night are twofold more likely to develop cardiovascular disease, independent of traditional CVD risk factors, new research suggests.
Prior studies have focused on shift workers because night shift work will influence circadian rhythm and increase CVD risk. But it is increasingly recognized that circadian disruption may occur outside of shift work and accumulate over time, particularly given modern lifestyle factors such as increased use of mobile devices and television at night, said study coauthor Tianyi Huang, ScD, MSc, of Brigham and Women’s Hospital and Harvard Medical School in Boston, Massachusetts.
“Even if they tend to go to sleep at certain times, by following that lifestyle or behavior, it can interfere with their planned sleep timing,” he said.
“One thing that surprised me in this sample is that about one third of participants have irregular sleep patterns that can put them at increased risk of cardiovascular disease. So I think the prevalence is higher than expected,” Huang added.
As reported today in the Journal of the American College of Cardiology, the investigators used data from 7-day wrist actigraphy, 1 night of at-home polysomnography, and sleep questionnaires to assess sleep duration and sleep-onset timing among 1,992 Multi-Ethnic Study of Atherosclerosis () participants, aged 45 to 84 years, who were free of CVD and prospectively followed for a me MESA dian of 4.9 years.
A total of 786 patients (39.5%) had sleep duration standard deviation (SD) > 90 minutes and 510 (25.6%) had sleep-onset timing SD > 90 minutes.
During follow-up, there were 111 incident CVD events, including myocardial infarction, coronary heart disease death, stroke, and other coronary events.
Compared with people who had less than 1 hour of variation in sleep duration, the risk for incident CVD was 9% higher for people whose sleep duration varied 61 to 90 minutes (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.62 - 1.92), even after controlling for a variety of cardiovascular and sleep-related risk factors such as body mass index, systolic blood pressure, smoking status, total cholesterol, average sleep duration, insomnia symptoms, and sleep apnea.
Moreover, the adjusted CVD risk was substantially increased with 91 to 120 minutes of variation (HR, 1.59; 95% CI, 0.91 - 2.76) and more than 120 minutes of variation in sleep duration (HR, 2.14; 95% CI, 1.24 - 3.68).
Every 1-hour increase in sleep duration SD was associated with 36% higher CVD risk (95% CI; 1.07 - 1.73).
Compared with people with no more than a half hour of variation in nightly bedtimes, the adjusted hazard ratios for CVD were 1.16 (95% CI, 0.64 - 2.13), 1.52 (95% CI, 0.81 - 2.88), and 2.11 (95% CI, 1.13 - 3.91) when bedtimes varied by 31 to 60 minutes, 61 to 90 minutes, and more than 90 minutes.
For every 1-hour increase in sleep-onset timing SD, the risk of CVD was 18% higher (95% CI; 1.06 - 1.31).
“The results are similar for the regularity of sleep timing and the regularity of sleep duration, which means that both can contribute to circadian disruption and then lead to development of cardiovascular disease,” Huang said.
This is an important article and signals how sleep is an important marker and possibly a mediator of cardiovascular risk, said Harlan Krumholz, MD, of Yale School of Medicine in New Haven, Connecticut, who was not involved with the study.
“What I like about this is it’s a nice longitudinal, epidemiologic study with not just self-report, but sensor-detected sleep, that has been correlated with well-curated and adjudicated outcomes to give us a strong sense of this association,” he told theheart.org/Medscape Cardiology. “And also, that it goes beyond just the duration — they combine the duration and timing in order to give a fuller picture of sleep.”
Nevertheless, Krumholz said researchers are only at the beginning of being able to quantify the various dimensions of sleep and the degree to which sleep is a reflection of underlying physiologic issues, or whether patients are having erratic sleep patterns that are having a toxic effect on their overall health.
Questions also remain about the mechanism behind the association, whether the increased risk is universal or more harmful for some people, and the best way to measure factors during sleep that can most comprehensively and precisely predict risk.
“As we get more information flowing in from sensors, I think we will begin to develop more sophisticated approaches toward understanding risk, and it will be accompanied by other studies that will help us understand whether, again, this is a reflection of other processes that we should be paying attention to or whether it is a cause of disease and risk,” Krumholz said.
Subgroup analyses suggested positive associations between irregular sleep and CVD in African Americans, Hispanics, and Chinese Americans but not in whites. This could be because sleep irregularity, both timing and duration, was substantially higher in minorities, especially African Americans, but may also be as a result of chance because the study sample is relatively small, Huang explained.
The authors note that the overall findings are biologically plausible because of their previous work linking sleep irregularity with metabolic risk factors that predispose to atherosclerosis, such as obesity, diabetes, and hypertension. Participants with irregular sleep tended to have worse baseline cardiometabolic profiles, but this only explained a small portion of the associations between sleep irregularity and CVD, they note.
Other possible explanations include circadian clock genes, such as clock, per2 and bmal1, which have been shown experimentally to control a broad range of cardiovascular functions, from blood pressure and endothelial functions to vascular thrombosis and cardiac remodeling.
Irregular sleep may also influence the rhythms of the autonomic nervous system, and behavioral rhythms with regard to timing and/or amount of eating or exercise.
Further research is needed to understand the mechanisms driving the associations, the impact of sleep irregularity on individual CVD outcomes, and to determine whether a 7-day SD of more than 90 minutes for either sleep duration or sleep-onset timing can be used clinically as a threshold target for promoting cardiometabolically healthy sleep, Huang said.
“When providers communicate with their patients regarding strategies for CVD prevention, usually they focus on healthy diet and physical activity; and even when they talk about sleep, they talk about whether they have good sleep quality or sufficient sleep,” he said. “But one thing they should provide is advice regarding sleep regularity and [they should] recommend their patients follow a regular sleep pattern for the purpose of cardiovascular prevention.”
In a related editorial, Olaf Oldenburg, MD, Luderus-Kliniken Münster, Clemenshospital, Münster, Germany, and Jens Spiesshoefer, MD, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy, write that the observed independent association between sleep irregularity and CVD “is a particularly striking finding given that impaired circadian rhythm is likely to be much more prevalent than the extreme example of shift work.”
They call on researchers to utilize big data to facilitate understanding of the association and say it is essential to test whether experimental data support the hypothesis that altered circadian rhythms would translate into unfavorable changes in 24-hour sympathovagal and neurohormonal balance, and ultimately CVD.
The present study “will, and should, stimulate much needed additional research on the association between sleep and CVD that may offer novel approaches to help improve the prognosis and daily symptom burden of patients with CVD, and might make sleep itself a therapeutic target in CVD,” the editorialists conclude.
This research was supported by contracts from the National Heart, Lung, and Blood Institute (NHLBI), and by grants from the National Center for Advancing Translational Sciences. The MESA Sleep Study was supported by an NHLBI grant. Huang was supported by a career development grant from the National Institutes of Health.
Krumholz and Oldenburg have disclosed no relevant financial relationships. Spiesshoefer is supported by grants from the Else-Kröner-Fresenius Stiftung, the Innovative Medical Research program at the University of Münster, and Deutsche Herzstiftung; and by young investigator research support from Scuola Superiore Sant’Anna Pisa. He also has received travel grants and lecture honoraria from Boehringer Ingelheim and Chiesi.
Source: J Am Coll Cardiol. 2020 Mar 2. doi: 10.1016/j.jacc.2019.12.054.
This article first appeared on Medscape.com.
People who frequently alter the amount of sleep and time they go to bed each night are twofold more likely to develop cardiovascular disease, independent of traditional CVD risk factors, new research suggests.
Prior studies have focused on shift workers because night shift work will influence circadian rhythm and increase CVD risk. But it is increasingly recognized that circadian disruption may occur outside of shift work and accumulate over time, particularly given modern lifestyle factors such as increased use of mobile devices and television at night, said study coauthor Tianyi Huang, ScD, MSc, of Brigham and Women’s Hospital and Harvard Medical School in Boston, Massachusetts.
“Even if they tend to go to sleep at certain times, by following that lifestyle or behavior, it can interfere with their planned sleep timing,” he said.
“One thing that surprised me in this sample is that about one third of participants have irregular sleep patterns that can put them at increased risk of cardiovascular disease. So I think the prevalence is higher than expected,” Huang added.
As reported today in the Journal of the American College of Cardiology, the investigators used data from 7-day wrist actigraphy, 1 night of at-home polysomnography, and sleep questionnaires to assess sleep duration and sleep-onset timing among 1,992 Multi-Ethnic Study of Atherosclerosis () participants, aged 45 to 84 years, who were free of CVD and prospectively followed for a me MESA dian of 4.9 years.
A total of 786 patients (39.5%) had sleep duration standard deviation (SD) > 90 minutes and 510 (25.6%) had sleep-onset timing SD > 90 minutes.
During follow-up, there were 111 incident CVD events, including myocardial infarction, coronary heart disease death, stroke, and other coronary events.
Compared with people who had less than 1 hour of variation in sleep duration, the risk for incident CVD was 9% higher for people whose sleep duration varied 61 to 90 minutes (hazard ratio [HR], 1.09; 95% confidence interval [CI], 0.62 - 1.92), even after controlling for a variety of cardiovascular and sleep-related risk factors such as body mass index, systolic blood pressure, smoking status, total cholesterol, average sleep duration, insomnia symptoms, and sleep apnea.
Moreover, the adjusted CVD risk was substantially increased with 91 to 120 minutes of variation (HR, 1.59; 95% CI, 0.91 - 2.76) and more than 120 minutes of variation in sleep duration (HR, 2.14; 95% CI, 1.24 - 3.68).
Every 1-hour increase in sleep duration SD was associated with 36% higher CVD risk (95% CI; 1.07 - 1.73).
Compared with people with no more than a half hour of variation in nightly bedtimes, the adjusted hazard ratios for CVD were 1.16 (95% CI, 0.64 - 2.13), 1.52 (95% CI, 0.81 - 2.88), and 2.11 (95% CI, 1.13 - 3.91) when bedtimes varied by 31 to 60 minutes, 61 to 90 minutes, and more than 90 minutes.
For every 1-hour increase in sleep-onset timing SD, the risk of CVD was 18% higher (95% CI; 1.06 - 1.31).
“The results are similar for the regularity of sleep timing and the regularity of sleep duration, which means that both can contribute to circadian disruption and then lead to development of cardiovascular disease,” Huang said.
This is an important article and signals how sleep is an important marker and possibly a mediator of cardiovascular risk, said Harlan Krumholz, MD, of Yale School of Medicine in New Haven, Connecticut, who was not involved with the study.
“What I like about this is it’s a nice longitudinal, epidemiologic study with not just self-report, but sensor-detected sleep, that has been correlated with well-curated and adjudicated outcomes to give us a strong sense of this association,” he told theheart.org/Medscape Cardiology. “And also, that it goes beyond just the duration — they combine the duration and timing in order to give a fuller picture of sleep.”
Nevertheless, Krumholz said researchers are only at the beginning of being able to quantify the various dimensions of sleep and the degree to which sleep is a reflection of underlying physiologic issues, or whether patients are having erratic sleep patterns that are having a toxic effect on their overall health.
Questions also remain about the mechanism behind the association, whether the increased risk is universal or more harmful for some people, and the best way to measure factors during sleep that can most comprehensively and precisely predict risk.
“As we get more information flowing in from sensors, I think we will begin to develop more sophisticated approaches toward understanding risk, and it will be accompanied by other studies that will help us understand whether, again, this is a reflection of other processes that we should be paying attention to or whether it is a cause of disease and risk,” Krumholz said.
Subgroup analyses suggested positive associations between irregular sleep and CVD in African Americans, Hispanics, and Chinese Americans but not in whites. This could be because sleep irregularity, both timing and duration, was substantially higher in minorities, especially African Americans, but may also be as a result of chance because the study sample is relatively small, Huang explained.
The authors note that the overall findings are biologically plausible because of their previous work linking sleep irregularity with metabolic risk factors that predispose to atherosclerosis, such as obesity, diabetes, and hypertension. Participants with irregular sleep tended to have worse baseline cardiometabolic profiles, but this only explained a small portion of the associations between sleep irregularity and CVD, they note.
Other possible explanations include circadian clock genes, such as clock, per2 and bmal1, which have been shown experimentally to control a broad range of cardiovascular functions, from blood pressure and endothelial functions to vascular thrombosis and cardiac remodeling.
Irregular sleep may also influence the rhythms of the autonomic nervous system, and behavioral rhythms with regard to timing and/or amount of eating or exercise.
Further research is needed to understand the mechanisms driving the associations, the impact of sleep irregularity on individual CVD outcomes, and to determine whether a 7-day SD of more than 90 minutes for either sleep duration or sleep-onset timing can be used clinically as a threshold target for promoting cardiometabolically healthy sleep, Huang said.
“When providers communicate with their patients regarding strategies for CVD prevention, usually they focus on healthy diet and physical activity; and even when they talk about sleep, they talk about whether they have good sleep quality or sufficient sleep,” he said. “But one thing they should provide is advice regarding sleep regularity and [they should] recommend their patients follow a regular sleep pattern for the purpose of cardiovascular prevention.”
In a related editorial, Olaf Oldenburg, MD, Luderus-Kliniken Münster, Clemenshospital, Münster, Germany, and Jens Spiesshoefer, MD, Institute of Life Sciences, Scuola Superiore Sant’Anna, Pisa, Italy, write that the observed independent association between sleep irregularity and CVD “is a particularly striking finding given that impaired circadian rhythm is likely to be much more prevalent than the extreme example of shift work.”
They call on researchers to utilize big data to facilitate understanding of the association and say it is essential to test whether experimental data support the hypothesis that altered circadian rhythms would translate into unfavorable changes in 24-hour sympathovagal and neurohormonal balance, and ultimately CVD.
The present study “will, and should, stimulate much needed additional research on the association between sleep and CVD that may offer novel approaches to help improve the prognosis and daily symptom burden of patients with CVD, and might make sleep itself a therapeutic target in CVD,” the editorialists conclude.
This research was supported by contracts from the National Heart, Lung, and Blood Institute (NHLBI), and by grants from the National Center for Advancing Translational Sciences. The MESA Sleep Study was supported by an NHLBI grant. Huang was supported by a career development grant from the National Institutes of Health.
Krumholz and Oldenburg have disclosed no relevant financial relationships. Spiesshoefer is supported by grants from the Else-Kröner-Fresenius Stiftung, the Innovative Medical Research program at the University of Münster, and Deutsche Herzstiftung; and by young investigator research support from Scuola Superiore Sant’Anna Pisa. He also has received travel grants and lecture honoraria from Boehringer Ingelheim and Chiesi.
Source: J Am Coll Cardiol. 2020 Mar 2. doi: 10.1016/j.jacc.2019.12.054.
This article first appeared on Medscape.com.
Transradial access gains converts among U.S. interventional neurologists
LOS ANGELES –
“It’s growing dramatically in U.S. practice. It may be hype, but there is big excitement. We are still in an assessment mode, but the adoption rate has been high,” Raul G. Nogueira, MD, said in an interview during the International Stroke Conference sponsored by the American Heart Association. “The big advantage [of transradial catheterization entry] is elimination of groin complications, some of which can be pretty bad. Is it safe for the brain? It’s probably okay, but that needs more study,” said Dr. Nogueira, professor of neurology at Emory University and director of the Neurovascular Service at the Grady Marcus Stroke and Neuroscience Center in Atlanta.
His uncertainty stems from the more difficult route taken to advance a catheter from the wrist into brain vessels, a maneuver that requires significant manipulation of the catheter tip, unlike the path from the right radial artery into the heart’s arteries, a “straight shot,” he explained. To reach the brain’s vasculature, the tip must execute a spin “that may scrape small emboli from the arch or arteries, so we need to look at this a little more carefully.” Ideally in a prospective, randomized study, he said. “We need to see whether the burden of [magnetic resonance] lesions is any higher when you go through the radial [artery].”
Some of the first-reported, large-scale U.S. experiences using a radial-artery approach for various neurovascular procedures, including a few thrombectomy cases, came in a series of 1,272 patients treated at any of four U.S. centers during July 2018 to June 2019, a period when the neurovascular staffs at all four centers transitioned from primarily using femoral-artery access to using radial access as their default mode. During the 12-month transition period, overall use of radial access at all four centers rose from roughly a quarter of all neurovascular interventions during July to September 2018 to closer to 80% by April to June 2019, Eyad Almallouhi, MD, reported at the conference.
During the entire 12 months, the operators ran up a 94% rate of successfully completed procedures using radial access, a rate that rose from about 88% during the first quarter to roughly 95% success during the fourth quarter tracked, said Dr. Almallouhi, a neurologist at the Medical University of South Carolina in Charleston. The rate of crossover from what began as a transradial procedure but switched to transfemoral was just under 6% overall, with a nearly 14% crossover rate during the first quarter that then dropped to around 5% for the rest of the transition year. Crossovers for interventional procedures throughout the study year occurred at a 12% rate, while crossovers for diagnostic procedures occurred at a 5% clip throughout the entire year.
None of the transradial patients had a major access-site complication, and minor complications occurred in less than 2% of the patients, including 11 with a forearm hematoma, 6 with forearm pain, and 5 with oozing at their access site. The absence of any major access-site complications among the transradial-access patients in this series contrasts with a recent report of a 1.7% rate of major complications secondary to femoral-artery access for mechanical thrombectomy in a combined analysis of data from seven published studies that included 660 thrombectomy procedures (Am J Neuroradiol. 2019 Feb. doi: 10.3174/ajnr.A6423). The other three centers that participated in the study Dr. Almallouhi presented were the University of Miami, Thomas Jefferson University in Philadelphia, and the University of Pittsburgh.
Of the 1,272 total procedures studied, 83% were diagnostic procedures, which had an overall 95% success rate, and 17% were interventional procedures, which had a success rate of 89%. The interventional transradial procedures included 62 primary coilings of aneurysms, 44 stent-assisted aneurysm coilings, 40 patients who underwent a flow diversion, 21 balloon-assisted aneurysm coilings, and 24 patients who underwent stroke thrombectomy.
The size of the devices commonly used for thrombectomy are often too large to allow for radial-artery access, noted Dr. Nogueira. For urgent interventions like thrombectomy “we use balloon-guided catheters that are large-bore and don’t fit well in the radial,” he said, although thrombectomy via the radial artery without a balloon-guided catheter is possible for clots located in the basilar artery. Last year, researchers in Germany reported using a balloon-guided catheter to perform mechanical thrombectomy via the radial artery (Interv Neuroradiol. 2019 Oct 1;25[5]:508-10). But it’s a different story for elective, diagnostic procedures. “I have moved most of these to transradial,” Dr. Nogueira said. He and his coauthors summarized the case for transradial access for cerebral angiography in a recent review; in addition to enhanced safety they cited other advantages including improved patient satisfaction and reduced cost because of a shorter length of stay (Interv Cardiol Clin. 2020 Jan;9[1]:75-86).
Despite his enthusiasm and the enthusiasm of other neurointerventionalists for the transradial approach, other stroke neurologists have been more cautious and slower to shift away from the femoral approach. “Our experience has been that for most cases it’s a bit more challenging to access the cervical vessels from the radial artery than from the traditional femoral approach. For arches with complex anatomy, however, the transradial approach can be of benefit in some cases, depending on the angles that need to be traversed,” commented Jeremy Payne, MD, director of the Banner Center for Neurovascular Medicine and medical director of the Banner—University Medical Center Phoenix Comprehensive Stroke Program. Dr. Payne highlighted that, while he is not an interventionalist himself, he and his interventional staff have regularly discussed the transradial option.
“In the cardiology literature the radial approach has been very successful, with better overall safety than the traditional femoral approach. Largely this seems to do with the anatomy of the aortic arch. It’s simply a more direct approach to the coronaries via the right radial artery; getting the wire into the correct vessel is significantly more difficult the more acute the angle it has to traverse,” such as when the target is an intracerebral vessel, Dr. Payne said in an interview.
“Our experience in the past 6 months has been about 25% transradial for some of our procedures, mainly diagnostic angiograms. We don’t find any difference in safety, however, as our transfemoral procedures are already very safe. One of the benefits of a transradial approach has been that a closure device may not be needed, with fewer vascular complications at the access site, such as fistula formation. We use ultrasound for access, and have not seen a difference in those approaches at all so far. One might argue that using ultrasound to establish access would slow us down, but so far our fastest case start-to-recanalization time in an acute stroke this year was 6 minutes, so speed does not appear to be a limiting issue. Another concern overall for transradial access is the potential limitation in the tools we may be able to deploy, given the smaller size of the vessel. It is reassuring [in the report from Dr. Almallouhi] that a variety of cases were successfully completed via this approach. However, fewer than 2% of their cases [24 patients] were apparently emergent, acute strokes, lending no specific support to that context. I do not expect that to change based on this paper,” Dr. Payne concluded.
“It is not clear to me that transradial neurointervention will change much. We have excellent safety data for the femoral approach, a proven track record of efficacy, and for most patients it seems to afford a somewhat wider range of tools that can be deployed, with simpler anatomy for accessing the cervical vessels in most arches. It is reassuring that the results reported by Dr. Almallouhi did not suggest negative outcomes, and as such I suspect the transradial approach at least gives us an additional option in a minority of patients. We have seen in the past 5-10 years an explosion of tools for the endovascular treatment of stroke; transradial access represents another potential strategy that appears so far to be safe,” Dr. Payne said.
Drs. Nogueira, Almallouhi, and Payne had no relevant disclosures.
SOURCE: Almallouhi E et al. Stroke. 2020 Feb;51(suppl 1):A64.
LOS ANGELES –
“It’s growing dramatically in U.S. practice. It may be hype, but there is big excitement. We are still in an assessment mode, but the adoption rate has been high,” Raul G. Nogueira, MD, said in an interview during the International Stroke Conference sponsored by the American Heart Association. “The big advantage [of transradial catheterization entry] is elimination of groin complications, some of which can be pretty bad. Is it safe for the brain? It’s probably okay, but that needs more study,” said Dr. Nogueira, professor of neurology at Emory University and director of the Neurovascular Service at the Grady Marcus Stroke and Neuroscience Center in Atlanta.
His uncertainty stems from the more difficult route taken to advance a catheter from the wrist into brain vessels, a maneuver that requires significant manipulation of the catheter tip, unlike the path from the right radial artery into the heart’s arteries, a “straight shot,” he explained. To reach the brain’s vasculature, the tip must execute a spin “that may scrape small emboli from the arch or arteries, so we need to look at this a little more carefully.” Ideally in a prospective, randomized study, he said. “We need to see whether the burden of [magnetic resonance] lesions is any higher when you go through the radial [artery].”
Some of the first-reported, large-scale U.S. experiences using a radial-artery approach for various neurovascular procedures, including a few thrombectomy cases, came in a series of 1,272 patients treated at any of four U.S. centers during July 2018 to June 2019, a period when the neurovascular staffs at all four centers transitioned from primarily using femoral-artery access to using radial access as their default mode. During the 12-month transition period, overall use of radial access at all four centers rose from roughly a quarter of all neurovascular interventions during July to September 2018 to closer to 80% by April to June 2019, Eyad Almallouhi, MD, reported at the conference.
During the entire 12 months, the operators ran up a 94% rate of successfully completed procedures using radial access, a rate that rose from about 88% during the first quarter to roughly 95% success during the fourth quarter tracked, said Dr. Almallouhi, a neurologist at the Medical University of South Carolina in Charleston. The rate of crossover from what began as a transradial procedure but switched to transfemoral was just under 6% overall, with a nearly 14% crossover rate during the first quarter that then dropped to around 5% for the rest of the transition year. Crossovers for interventional procedures throughout the study year occurred at a 12% rate, while crossovers for diagnostic procedures occurred at a 5% clip throughout the entire year.
None of the transradial patients had a major access-site complication, and minor complications occurred in less than 2% of the patients, including 11 with a forearm hematoma, 6 with forearm pain, and 5 with oozing at their access site. The absence of any major access-site complications among the transradial-access patients in this series contrasts with a recent report of a 1.7% rate of major complications secondary to femoral-artery access for mechanical thrombectomy in a combined analysis of data from seven published studies that included 660 thrombectomy procedures (Am J Neuroradiol. 2019 Feb. doi: 10.3174/ajnr.A6423). The other three centers that participated in the study Dr. Almallouhi presented were the University of Miami, Thomas Jefferson University in Philadelphia, and the University of Pittsburgh.
Of the 1,272 total procedures studied, 83% were diagnostic procedures, which had an overall 95% success rate, and 17% were interventional procedures, which had a success rate of 89%. The interventional transradial procedures included 62 primary coilings of aneurysms, 44 stent-assisted aneurysm coilings, 40 patients who underwent a flow diversion, 21 balloon-assisted aneurysm coilings, and 24 patients who underwent stroke thrombectomy.
The size of the devices commonly used for thrombectomy are often too large to allow for radial-artery access, noted Dr. Nogueira. For urgent interventions like thrombectomy “we use balloon-guided catheters that are large-bore and don’t fit well in the radial,” he said, although thrombectomy via the radial artery without a balloon-guided catheter is possible for clots located in the basilar artery. Last year, researchers in Germany reported using a balloon-guided catheter to perform mechanical thrombectomy via the radial artery (Interv Neuroradiol. 2019 Oct 1;25[5]:508-10). But it’s a different story for elective, diagnostic procedures. “I have moved most of these to transradial,” Dr. Nogueira said. He and his coauthors summarized the case for transradial access for cerebral angiography in a recent review; in addition to enhanced safety they cited other advantages including improved patient satisfaction and reduced cost because of a shorter length of stay (Interv Cardiol Clin. 2020 Jan;9[1]:75-86).
Despite his enthusiasm and the enthusiasm of other neurointerventionalists for the transradial approach, other stroke neurologists have been more cautious and slower to shift away from the femoral approach. “Our experience has been that for most cases it’s a bit more challenging to access the cervical vessels from the radial artery than from the traditional femoral approach. For arches with complex anatomy, however, the transradial approach can be of benefit in some cases, depending on the angles that need to be traversed,” commented Jeremy Payne, MD, director of the Banner Center for Neurovascular Medicine and medical director of the Banner—University Medical Center Phoenix Comprehensive Stroke Program. Dr. Payne highlighted that, while he is not an interventionalist himself, he and his interventional staff have regularly discussed the transradial option.
“In the cardiology literature the radial approach has been very successful, with better overall safety than the traditional femoral approach. Largely this seems to do with the anatomy of the aortic arch. It’s simply a more direct approach to the coronaries via the right radial artery; getting the wire into the correct vessel is significantly more difficult the more acute the angle it has to traverse,” such as when the target is an intracerebral vessel, Dr. Payne said in an interview.
“Our experience in the past 6 months has been about 25% transradial for some of our procedures, mainly diagnostic angiograms. We don’t find any difference in safety, however, as our transfemoral procedures are already very safe. One of the benefits of a transradial approach has been that a closure device may not be needed, with fewer vascular complications at the access site, such as fistula formation. We use ultrasound for access, and have not seen a difference in those approaches at all so far. One might argue that using ultrasound to establish access would slow us down, but so far our fastest case start-to-recanalization time in an acute stroke this year was 6 minutes, so speed does not appear to be a limiting issue. Another concern overall for transradial access is the potential limitation in the tools we may be able to deploy, given the smaller size of the vessel. It is reassuring [in the report from Dr. Almallouhi] that a variety of cases were successfully completed via this approach. However, fewer than 2% of their cases [24 patients] were apparently emergent, acute strokes, lending no specific support to that context. I do not expect that to change based on this paper,” Dr. Payne concluded.
“It is not clear to me that transradial neurointervention will change much. We have excellent safety data for the femoral approach, a proven track record of efficacy, and for most patients it seems to afford a somewhat wider range of tools that can be deployed, with simpler anatomy for accessing the cervical vessels in most arches. It is reassuring that the results reported by Dr. Almallouhi did not suggest negative outcomes, and as such I suspect the transradial approach at least gives us an additional option in a minority of patients. We have seen in the past 5-10 years an explosion of tools for the endovascular treatment of stroke; transradial access represents another potential strategy that appears so far to be safe,” Dr. Payne said.
Drs. Nogueira, Almallouhi, and Payne had no relevant disclosures.
SOURCE: Almallouhi E et al. Stroke. 2020 Feb;51(suppl 1):A64.
LOS ANGELES –
“It’s growing dramatically in U.S. practice. It may be hype, but there is big excitement. We are still in an assessment mode, but the adoption rate has been high,” Raul G. Nogueira, MD, said in an interview during the International Stroke Conference sponsored by the American Heart Association. “The big advantage [of transradial catheterization entry] is elimination of groin complications, some of which can be pretty bad. Is it safe for the brain? It’s probably okay, but that needs more study,” said Dr. Nogueira, professor of neurology at Emory University and director of the Neurovascular Service at the Grady Marcus Stroke and Neuroscience Center in Atlanta.
His uncertainty stems from the more difficult route taken to advance a catheter from the wrist into brain vessels, a maneuver that requires significant manipulation of the catheter tip, unlike the path from the right radial artery into the heart’s arteries, a “straight shot,” he explained. To reach the brain’s vasculature, the tip must execute a spin “that may scrape small emboli from the arch or arteries, so we need to look at this a little more carefully.” Ideally in a prospective, randomized study, he said. “We need to see whether the burden of [magnetic resonance] lesions is any higher when you go through the radial [artery].”
Some of the first-reported, large-scale U.S. experiences using a radial-artery approach for various neurovascular procedures, including a few thrombectomy cases, came in a series of 1,272 patients treated at any of four U.S. centers during July 2018 to June 2019, a period when the neurovascular staffs at all four centers transitioned from primarily using femoral-artery access to using radial access as their default mode. During the 12-month transition period, overall use of radial access at all four centers rose from roughly a quarter of all neurovascular interventions during July to September 2018 to closer to 80% by April to June 2019, Eyad Almallouhi, MD, reported at the conference.
During the entire 12 months, the operators ran up a 94% rate of successfully completed procedures using radial access, a rate that rose from about 88% during the first quarter to roughly 95% success during the fourth quarter tracked, said Dr. Almallouhi, a neurologist at the Medical University of South Carolina in Charleston. The rate of crossover from what began as a transradial procedure but switched to transfemoral was just under 6% overall, with a nearly 14% crossover rate during the first quarter that then dropped to around 5% for the rest of the transition year. Crossovers for interventional procedures throughout the study year occurred at a 12% rate, while crossovers for diagnostic procedures occurred at a 5% clip throughout the entire year.
None of the transradial patients had a major access-site complication, and minor complications occurred in less than 2% of the patients, including 11 with a forearm hematoma, 6 with forearm pain, and 5 with oozing at their access site. The absence of any major access-site complications among the transradial-access patients in this series contrasts with a recent report of a 1.7% rate of major complications secondary to femoral-artery access for mechanical thrombectomy in a combined analysis of data from seven published studies that included 660 thrombectomy procedures (Am J Neuroradiol. 2019 Feb. doi: 10.3174/ajnr.A6423). The other three centers that participated in the study Dr. Almallouhi presented were the University of Miami, Thomas Jefferson University in Philadelphia, and the University of Pittsburgh.
Of the 1,272 total procedures studied, 83% were diagnostic procedures, which had an overall 95% success rate, and 17% were interventional procedures, which had a success rate of 89%. The interventional transradial procedures included 62 primary coilings of aneurysms, 44 stent-assisted aneurysm coilings, 40 patients who underwent a flow diversion, 21 balloon-assisted aneurysm coilings, and 24 patients who underwent stroke thrombectomy.
The size of the devices commonly used for thrombectomy are often too large to allow for radial-artery access, noted Dr. Nogueira. For urgent interventions like thrombectomy “we use balloon-guided catheters that are large-bore and don’t fit well in the radial,” he said, although thrombectomy via the radial artery without a balloon-guided catheter is possible for clots located in the basilar artery. Last year, researchers in Germany reported using a balloon-guided catheter to perform mechanical thrombectomy via the radial artery (Interv Neuroradiol. 2019 Oct 1;25[5]:508-10). But it’s a different story for elective, diagnostic procedures. “I have moved most of these to transradial,” Dr. Nogueira said. He and his coauthors summarized the case for transradial access for cerebral angiography in a recent review; in addition to enhanced safety they cited other advantages including improved patient satisfaction and reduced cost because of a shorter length of stay (Interv Cardiol Clin. 2020 Jan;9[1]:75-86).
Despite his enthusiasm and the enthusiasm of other neurointerventionalists for the transradial approach, other stroke neurologists have been more cautious and slower to shift away from the femoral approach. “Our experience has been that for most cases it’s a bit more challenging to access the cervical vessels from the radial artery than from the traditional femoral approach. For arches with complex anatomy, however, the transradial approach can be of benefit in some cases, depending on the angles that need to be traversed,” commented Jeremy Payne, MD, director of the Banner Center for Neurovascular Medicine and medical director of the Banner—University Medical Center Phoenix Comprehensive Stroke Program. Dr. Payne highlighted that, while he is not an interventionalist himself, he and his interventional staff have regularly discussed the transradial option.
“In the cardiology literature the radial approach has been very successful, with better overall safety than the traditional femoral approach. Largely this seems to do with the anatomy of the aortic arch. It’s simply a more direct approach to the coronaries via the right radial artery; getting the wire into the correct vessel is significantly more difficult the more acute the angle it has to traverse,” such as when the target is an intracerebral vessel, Dr. Payne said in an interview.
“Our experience in the past 6 months has been about 25% transradial for some of our procedures, mainly diagnostic angiograms. We don’t find any difference in safety, however, as our transfemoral procedures are already very safe. One of the benefits of a transradial approach has been that a closure device may not be needed, with fewer vascular complications at the access site, such as fistula formation. We use ultrasound for access, and have not seen a difference in those approaches at all so far. One might argue that using ultrasound to establish access would slow us down, but so far our fastest case start-to-recanalization time in an acute stroke this year was 6 minutes, so speed does not appear to be a limiting issue. Another concern overall for transradial access is the potential limitation in the tools we may be able to deploy, given the smaller size of the vessel. It is reassuring [in the report from Dr. Almallouhi] that a variety of cases were successfully completed via this approach. However, fewer than 2% of their cases [24 patients] were apparently emergent, acute strokes, lending no specific support to that context. I do not expect that to change based on this paper,” Dr. Payne concluded.
“It is not clear to me that transradial neurointervention will change much. We have excellent safety data for the femoral approach, a proven track record of efficacy, and for most patients it seems to afford a somewhat wider range of tools that can be deployed, with simpler anatomy for accessing the cervical vessels in most arches. It is reassuring that the results reported by Dr. Almallouhi did not suggest negative outcomes, and as such I suspect the transradial approach at least gives us an additional option in a minority of patients. We have seen in the past 5-10 years an explosion of tools for the endovascular treatment of stroke; transradial access represents another potential strategy that appears so far to be safe,” Dr. Payne said.
Drs. Nogueira, Almallouhi, and Payne had no relevant disclosures.
SOURCE: Almallouhi E et al. Stroke. 2020 Feb;51(suppl 1):A64.
REPORTING FROM ISC 2020