Sharon Worcester is an award-winning medical journalist for MDedge News. She has been with the company since 1996, first as the Southeast Bureau Chief (1996-2009) when the company was known as International Medical News Group, then as a freelance writer (2010-2015) before returning as a reporter in 2015. She previously worked as a daily newspaper reporter covering health and local government. Sharon currently reports primarily on oncology and hematology. She has a BA from Eckerd College and an MA in Mass Communication/Print Journalism from the University of Florida. Connect with her via LinkedIn and follow her on twitter @SW_MedReporter.

CLL: No symptoms, no treatment still appropriate

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CHICAGO – Despite exciting new advances in the understanding of chronic lymphocytic leukemia, particularly with respect to prognostic features that predict risk for relapse, a watch-and-wait approach remains appropriate for asymptomatic disease pending outcomes data for newer approaches, according to Dr. John G. Gribben.

“When the disease is diagnosed, if it is asymptomatic, the correct approach – of course – is to continue to watch and wait,” Dr. Gribben of Barts Cancer Institute, Queen Mary University of London, said at the American Society of Hematology Meeting on Hematologic Malignancies.

Dr. John G. Gribben

Numerous clinical trials have demonstrated no advantage of early treatment vs. watch and wait, he said, adding that all of the trials published to date have used treatment of all-comers, and have used chlorambucil (CLB) as the treatment.

“There has been a whole variety of more modern trials that have used select prognostic features to identify subgroups of people who are at higher risk of relapse, who then go on to receive earlier treatment with either FCR [fludarabine, cyclophosphamide, rituximab], or more recently, ibrutinib,” he said.

These treatments are interesting, and the trials have demonstrated that prognostic features can identify patients who will progress more rapidly, but none have reported, he explained.

“In the absence of any published trial, I continue to ‘watch and wait’ patients, and there are no high-risk features which will make me alter that approach. Even the highest-risk features of complex karyotype and p53 abnormalities are not indications to treat patients until they become symptomatic,” he said.

It is striking how white counts vary widely in both asymptomatic and symptomatic patients, he noted.

“I don’t personally have any particular white count which is the number at which I’ll treat a patient. I don’t treat white counts, I treat patients,” he said.

When patients become symptomatic, the treatment of choice is now immunochemotherapies, irrespective of performance status, he said.

“Within the past year we have seen approval of obinutuzumab and ofatumumab for treatment of previously untreated CLL, as well as ibrutinib and idelalisib plus rituximab for treatment of both previously untreated CLL and those with 17p deletions for relapsed/refractory disease, as well as for up-front treatment,” he said, adding that these new agents greatly increase the available options for treating CLL.

Dr. Gribben said he considers these questions when it comes to treating CLL:

• Does the patient require treatment, or is watching and waiting appropriate?

• What is the goal of therapy? This is determined through conversation with the patient and the patient’s family regarding the side-effect profile they are willing to tolerate vs. the potential longer duration of response.

• What comorbidities are present to determine “fitness” for specific immunochemotherapy? Specifically, is the patient fit for an FCR-type approach, or is an alternative more appropriate?

• Is there a 17p deletion or P53 mutation that would make chemotherapy a less attractive option, and use of novel agents a more attractive option?

His approach, based on the answers to these questions, is as follows:

• In Rai stage 0-II patients with inactive disease, fitness and 17p deletion or p53 mutation status is irrelevant; no therapy is given.

• For active disease or Rai III-IV disease, a “go-go” patient, (or patient in good physical condition) is treated based on the presence or absence of 17p deletion or p53 mutation status. Those without 17p deletions or p53 mutations can be treated with FCR (his preference), or fludarabine-rituximab (FR). Bendamustine-rituximab (BR) is also an attractive option in certain cases, he said.

• For patients with active disease or Rai stage III-IV disease who do have a 17p deletion, his treatment of choice is either ibrutinib or idelalisib plus rituximab, depending on the patient.

• In “slow-go” patients (those with poorer physical condition) treatment is again based on mutational analysis. Those without mutation receive either FR, BR, or CLB plus obinutuzumab. These are very good options, and represent a spectrum to choose from based on the patient’s core abilities and ability to withstand particular types of treatments, he said.

“If they do have a 17p deletion, these patients are just as eligible for ibrutinib or idelalisib plus rituximab as the younger patients,” he noted.

His choices are based largely on the findings from the CLL8 trial (Lancet 2010 Oct;376[9747]:1164-74) which demonstrated an overall survival advantage with chemoimmunotherapy for front-line therapy vs. chemotherapy alone (hazard ratio, 0.68).

Over time, the advantage has become even more pronounced, according to follow-up data.

Starting with something “gentle” and saving the best treatment for later in the event of relapse was recently considered a reasonable approach, but in the wake of the CLL8 findings, this is no longer an acceptable plan, Dr. Gribben said.

 

 

“That’s why for my choice, FCR remains the treatment of choice for those patients who are fit enough to tolerate this type of approach,” he said.

In those with 17p deletions or P53 mutations, the CLL8 trial showed poor outcomes with FCR.

“This is a group of patients whom I believe chemoimmunotherapy would no longer be the treatment of choice,” he said, adding that newer findings suggest outcomes in these patients are better with novel agents.

He also noted that patients with 11q abnormalities, which were previously associated with a poor prognosis, were found in CLL8 to respond well to chemoimmunotherapy when used front line.

While there are special considerations in the elderly, and different strategies in relapsed and refractory disease, the future of CLL treatment is promising. The benefit of adding rituximab to combination chemotherapy is well established, the benefit of novel agents is also now established, and the future likely involves combining targeted therapies with each other and with immunochemotherapies, and combining targeted therapies across different pathways.

“And of course the hope is that we’re going to use the biology of the disease to decide what specific therapy is ideal for that patient. Better understanding of biology and genetics is facilitating rational development of new treatments,” he said, adding that whenever possible, patients should be treated within clinical trials.

Dr. Gribben has received research funding from the NIH, Cancer Research UK, MRC, and Wellcome Trust. He has received honoraria from Roche/Genentech, Celgene, Janssen, Pharmacyclics, Gilead, Mundipharma, Infinity, TG Therapeutics, and Ascerta, and he has a patent or receives royalties from Celgene. He also has been the principal investigator on a clinical trial for Roche, Takeda, Pharmacyclics, Gilead, and Infinity.

sworcester@frontlinemedcom.com

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CHICAGO – Despite exciting new advances in the understanding of chronic lymphocytic leukemia, particularly with respect to prognostic features that predict risk for relapse, a watch-and-wait approach remains appropriate for asymptomatic disease pending outcomes data for newer approaches, according to Dr. John G. Gribben.

“When the disease is diagnosed, if it is asymptomatic, the correct approach – of course – is to continue to watch and wait,” Dr. Gribben of Barts Cancer Institute, Queen Mary University of London, said at the American Society of Hematology Meeting on Hematologic Malignancies.

Dr. John G. Gribben

Numerous clinical trials have demonstrated no advantage of early treatment vs. watch and wait, he said, adding that all of the trials published to date have used treatment of all-comers, and have used chlorambucil (CLB) as the treatment.

“There has been a whole variety of more modern trials that have used select prognostic features to identify subgroups of people who are at higher risk of relapse, who then go on to receive earlier treatment with either FCR [fludarabine, cyclophosphamide, rituximab], or more recently, ibrutinib,” he said.

These treatments are interesting, and the trials have demonstrated that prognostic features can identify patients who will progress more rapidly, but none have reported, he explained.

“In the absence of any published trial, I continue to ‘watch and wait’ patients, and there are no high-risk features which will make me alter that approach. Even the highest-risk features of complex karyotype and p53 abnormalities are not indications to treat patients until they become symptomatic,” he said.

It is striking how white counts vary widely in both asymptomatic and symptomatic patients, he noted.

“I don’t personally have any particular white count which is the number at which I’ll treat a patient. I don’t treat white counts, I treat patients,” he said.

When patients become symptomatic, the treatment of choice is now immunochemotherapies, irrespective of performance status, he said.

“Within the past year we have seen approval of obinutuzumab and ofatumumab for treatment of previously untreated CLL, as well as ibrutinib and idelalisib plus rituximab for treatment of both previously untreated CLL and those with 17p deletions for relapsed/refractory disease, as well as for up-front treatment,” he said, adding that these new agents greatly increase the available options for treating CLL.

Dr. Gribben said he considers these questions when it comes to treating CLL:

• Does the patient require treatment, or is watching and waiting appropriate?

• What is the goal of therapy? This is determined through conversation with the patient and the patient’s family regarding the side-effect profile they are willing to tolerate vs. the potential longer duration of response.

• What comorbidities are present to determine “fitness” for specific immunochemotherapy? Specifically, is the patient fit for an FCR-type approach, or is an alternative more appropriate?

• Is there a 17p deletion or P53 mutation that would make chemotherapy a less attractive option, and use of novel agents a more attractive option?

His approach, based on the answers to these questions, is as follows:

• In Rai stage 0-II patients with inactive disease, fitness and 17p deletion or p53 mutation status is irrelevant; no therapy is given.

• For active disease or Rai III-IV disease, a “go-go” patient, (or patient in good physical condition) is treated based on the presence or absence of 17p deletion or p53 mutation status. Those without 17p deletions or p53 mutations can be treated with FCR (his preference), or fludarabine-rituximab (FR). Bendamustine-rituximab (BR) is also an attractive option in certain cases, he said.

• For patients with active disease or Rai stage III-IV disease who do have a 17p deletion, his treatment of choice is either ibrutinib or idelalisib plus rituximab, depending on the patient.

• In “slow-go” patients (those with poorer physical condition) treatment is again based on mutational analysis. Those without mutation receive either FR, BR, or CLB plus obinutuzumab. These are very good options, and represent a spectrum to choose from based on the patient’s core abilities and ability to withstand particular types of treatments, he said.

“If they do have a 17p deletion, these patients are just as eligible for ibrutinib or idelalisib plus rituximab as the younger patients,” he noted.

His choices are based largely on the findings from the CLL8 trial (Lancet 2010 Oct;376[9747]:1164-74) which demonstrated an overall survival advantage with chemoimmunotherapy for front-line therapy vs. chemotherapy alone (hazard ratio, 0.68).

Over time, the advantage has become even more pronounced, according to follow-up data.

Starting with something “gentle” and saving the best treatment for later in the event of relapse was recently considered a reasonable approach, but in the wake of the CLL8 findings, this is no longer an acceptable plan, Dr. Gribben said.

 

 

“That’s why for my choice, FCR remains the treatment of choice for those patients who are fit enough to tolerate this type of approach,” he said.

In those with 17p deletions or P53 mutations, the CLL8 trial showed poor outcomes with FCR.

“This is a group of patients whom I believe chemoimmunotherapy would no longer be the treatment of choice,” he said, adding that newer findings suggest outcomes in these patients are better with novel agents.

He also noted that patients with 11q abnormalities, which were previously associated with a poor prognosis, were found in CLL8 to respond well to chemoimmunotherapy when used front line.

While there are special considerations in the elderly, and different strategies in relapsed and refractory disease, the future of CLL treatment is promising. The benefit of adding rituximab to combination chemotherapy is well established, the benefit of novel agents is also now established, and the future likely involves combining targeted therapies with each other and with immunochemotherapies, and combining targeted therapies across different pathways.

“And of course the hope is that we’re going to use the biology of the disease to decide what specific therapy is ideal for that patient. Better understanding of biology and genetics is facilitating rational development of new treatments,” he said, adding that whenever possible, patients should be treated within clinical trials.

Dr. Gribben has received research funding from the NIH, Cancer Research UK, MRC, and Wellcome Trust. He has received honoraria from Roche/Genentech, Celgene, Janssen, Pharmacyclics, Gilead, Mundipharma, Infinity, TG Therapeutics, and Ascerta, and he has a patent or receives royalties from Celgene. He also has been the principal investigator on a clinical trial for Roche, Takeda, Pharmacyclics, Gilead, and Infinity.

sworcester@frontlinemedcom.com

CHICAGO – Despite exciting new advances in the understanding of chronic lymphocytic leukemia, particularly with respect to prognostic features that predict risk for relapse, a watch-and-wait approach remains appropriate for asymptomatic disease pending outcomes data for newer approaches, according to Dr. John G. Gribben.

“When the disease is diagnosed, if it is asymptomatic, the correct approach – of course – is to continue to watch and wait,” Dr. Gribben of Barts Cancer Institute, Queen Mary University of London, said at the American Society of Hematology Meeting on Hematologic Malignancies.

Dr. John G. Gribben

Numerous clinical trials have demonstrated no advantage of early treatment vs. watch and wait, he said, adding that all of the trials published to date have used treatment of all-comers, and have used chlorambucil (CLB) as the treatment.

“There has been a whole variety of more modern trials that have used select prognostic features to identify subgroups of people who are at higher risk of relapse, who then go on to receive earlier treatment with either FCR [fludarabine, cyclophosphamide, rituximab], or more recently, ibrutinib,” he said.

These treatments are interesting, and the trials have demonstrated that prognostic features can identify patients who will progress more rapidly, but none have reported, he explained.

“In the absence of any published trial, I continue to ‘watch and wait’ patients, and there are no high-risk features which will make me alter that approach. Even the highest-risk features of complex karyotype and p53 abnormalities are not indications to treat patients until they become symptomatic,” he said.

It is striking how white counts vary widely in both asymptomatic and symptomatic patients, he noted.

“I don’t personally have any particular white count which is the number at which I’ll treat a patient. I don’t treat white counts, I treat patients,” he said.

When patients become symptomatic, the treatment of choice is now immunochemotherapies, irrespective of performance status, he said.

“Within the past year we have seen approval of obinutuzumab and ofatumumab for treatment of previously untreated CLL, as well as ibrutinib and idelalisib plus rituximab for treatment of both previously untreated CLL and those with 17p deletions for relapsed/refractory disease, as well as for up-front treatment,” he said, adding that these new agents greatly increase the available options for treating CLL.

Dr. Gribben said he considers these questions when it comes to treating CLL:

• Does the patient require treatment, or is watching and waiting appropriate?

• What is the goal of therapy? This is determined through conversation with the patient and the patient’s family regarding the side-effect profile they are willing to tolerate vs. the potential longer duration of response.

• What comorbidities are present to determine “fitness” for specific immunochemotherapy? Specifically, is the patient fit for an FCR-type approach, or is an alternative more appropriate?

• Is there a 17p deletion or P53 mutation that would make chemotherapy a less attractive option, and use of novel agents a more attractive option?

His approach, based on the answers to these questions, is as follows:

• In Rai stage 0-II patients with inactive disease, fitness and 17p deletion or p53 mutation status is irrelevant; no therapy is given.

• For active disease or Rai III-IV disease, a “go-go” patient, (or patient in good physical condition) is treated based on the presence or absence of 17p deletion or p53 mutation status. Those without 17p deletions or p53 mutations can be treated with FCR (his preference), or fludarabine-rituximab (FR). Bendamustine-rituximab (BR) is also an attractive option in certain cases, he said.

• For patients with active disease or Rai stage III-IV disease who do have a 17p deletion, his treatment of choice is either ibrutinib or idelalisib plus rituximab, depending on the patient.

• In “slow-go” patients (those with poorer physical condition) treatment is again based on mutational analysis. Those without mutation receive either FR, BR, or CLB plus obinutuzumab. These are very good options, and represent a spectrum to choose from based on the patient’s core abilities and ability to withstand particular types of treatments, he said.

“If they do have a 17p deletion, these patients are just as eligible for ibrutinib or idelalisib plus rituximab as the younger patients,” he noted.

His choices are based largely on the findings from the CLL8 trial (Lancet 2010 Oct;376[9747]:1164-74) which demonstrated an overall survival advantage with chemoimmunotherapy for front-line therapy vs. chemotherapy alone (hazard ratio, 0.68).

Over time, the advantage has become even more pronounced, according to follow-up data.

Starting with something “gentle” and saving the best treatment for later in the event of relapse was recently considered a reasonable approach, but in the wake of the CLL8 findings, this is no longer an acceptable plan, Dr. Gribben said.

 

 

“That’s why for my choice, FCR remains the treatment of choice for those patients who are fit enough to tolerate this type of approach,” he said.

In those with 17p deletions or P53 mutations, the CLL8 trial showed poor outcomes with FCR.

“This is a group of patients whom I believe chemoimmunotherapy would no longer be the treatment of choice,” he said, adding that newer findings suggest outcomes in these patients are better with novel agents.

He also noted that patients with 11q abnormalities, which were previously associated with a poor prognosis, were found in CLL8 to respond well to chemoimmunotherapy when used front line.

While there are special considerations in the elderly, and different strategies in relapsed and refractory disease, the future of CLL treatment is promising. The benefit of adding rituximab to combination chemotherapy is well established, the benefit of novel agents is also now established, and the future likely involves combining targeted therapies with each other and with immunochemotherapies, and combining targeted therapies across different pathways.

“And of course the hope is that we’re going to use the biology of the disease to decide what specific therapy is ideal for that patient. Better understanding of biology and genetics is facilitating rational development of new treatments,” he said, adding that whenever possible, patients should be treated within clinical trials.

Dr. Gribben has received research funding from the NIH, Cancer Research UK, MRC, and Wellcome Trust. He has received honoraria from Roche/Genentech, Celgene, Janssen, Pharmacyclics, Gilead, Mundipharma, Infinity, TG Therapeutics, and Ascerta, and he has a patent or receives royalties from Celgene. He also has been the principal investigator on a clinical trial for Roche, Takeda, Pharmacyclics, Gilead, and Infinity.

sworcester@frontlinemedcom.com

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Study reveals higher than expected post-discharge mortality after trauma

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Study reveals higher than expected post-discharge mortality after trauma

LAS VEGAS – A higher-than-expected proportion of trauma-related deaths occur in the months and years after hospital discharge, according to findings from a prospective cohort study.

In 908 trauma patients followed for up to 9.8 years (median, 1.7 years), overall mortality was 27%, and in 509 patients followed for at least 2 years, overall mortality was 38%. Mortality was highest among those who were severely injured (43% at 5 years), Dr. Rachael A. Callcut reported at the annual meeting of the American Association for the Surgery of Trauma.

Spotmatik/ThinkStock

The median Injury Severity Scale score was 18, but for all ISS groups, survival was significantly worse than predicted actuarial survival for that group – even after exclusion of deaths that occurred within 30 days, she said.

For example, at 5 years, predicted actuarial survival was greater than 95%, but actual survival was about 90% for those with ISS less than 15, about 85% for those with ISS of 15-24, and about 57% for those with ISS greater than 24. This dose-response–like relationship between injury severity and mortality demonstrates that the deaths are not just occurring in “patients who are old and would have died from a heart attack anyway” she explained.

The 30-day mortality in the cohort was 22%, and in-hospital mortality was 22.9%, as eight patients who died after the first 30 days did so in the hospital. Forty-five of the 245 deaths (18%) occurred after 30 days, and 36 of those (80%) occurred after hospital discharge, meaning the out-of-hospital mortality rate was 5.3% overall, and 10% for the most severely injured (hazard ratio, 2.7 for the most severe vs. the least severe injuries).

“I personally found this quite striking given that when a patient leaves the hospital, we feel, to some degree, that we won – only to find out that at least 5% of these patients will go on to subsequently die,” said Dr. Callcut of the University of California San Francisco, adding that “if you look at it slightly differently, which is even more concerning, 37 of the out-of-hospital deaths of the total of 245 deaths, mean that out-of-hospital deaths account for 15% of the total mortality following trauma.”

Further, of the deaths that occurred after 30 days, 53% occurred between 31 days and 1 year after trauma, and trauma was the leading cause of postdischarge death, accounting for 41% of the late deaths, she said.

The patients included in this analysis were all highest level trauma activation patients enrolled in the ongoing study between 2005 and 2012. Comprehensive prospective data were collected, and patients were followed throughout their hospitalization and after discharge. Institutional medical records or death certificates were used to determine timing and cause of death, and survival status was determined based on the last date of care in the institution or by query of the National Death Index for 2013.

These findings provide a rare glimpse of trauma-related outcomes among patients discharged from the hospital. Most prior studies focused on 30-day outcomes, with a few extended out to 90 days, but very few studies have looked at long-term outcomes, Dr. Callcut noted.

“You could say that despite having survived to leave the hospital alive, long-term survival is actually worse than predicted actuarial survival, and this suggests to us that successful hospital discharge does not mean success for your patient,” she concluded.

Dr. Callcut was supported in part by a National Institutes of Health award.

sworcester@frontlinemedcom.com

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LAS VEGAS – A higher-than-expected proportion of trauma-related deaths occur in the months and years after hospital discharge, according to findings from a prospective cohort study.

In 908 trauma patients followed for up to 9.8 years (median, 1.7 years), overall mortality was 27%, and in 509 patients followed for at least 2 years, overall mortality was 38%. Mortality was highest among those who were severely injured (43% at 5 years), Dr. Rachael A. Callcut reported at the annual meeting of the American Association for the Surgery of Trauma.

Spotmatik/ThinkStock

The median Injury Severity Scale score was 18, but for all ISS groups, survival was significantly worse than predicted actuarial survival for that group – even after exclusion of deaths that occurred within 30 days, she said.

For example, at 5 years, predicted actuarial survival was greater than 95%, but actual survival was about 90% for those with ISS less than 15, about 85% for those with ISS of 15-24, and about 57% for those with ISS greater than 24. This dose-response–like relationship between injury severity and mortality demonstrates that the deaths are not just occurring in “patients who are old and would have died from a heart attack anyway” she explained.

The 30-day mortality in the cohort was 22%, and in-hospital mortality was 22.9%, as eight patients who died after the first 30 days did so in the hospital. Forty-five of the 245 deaths (18%) occurred after 30 days, and 36 of those (80%) occurred after hospital discharge, meaning the out-of-hospital mortality rate was 5.3% overall, and 10% for the most severely injured (hazard ratio, 2.7 for the most severe vs. the least severe injuries).

“I personally found this quite striking given that when a patient leaves the hospital, we feel, to some degree, that we won – only to find out that at least 5% of these patients will go on to subsequently die,” said Dr. Callcut of the University of California San Francisco, adding that “if you look at it slightly differently, which is even more concerning, 37 of the out-of-hospital deaths of the total of 245 deaths, mean that out-of-hospital deaths account for 15% of the total mortality following trauma.”

Further, of the deaths that occurred after 30 days, 53% occurred between 31 days and 1 year after trauma, and trauma was the leading cause of postdischarge death, accounting for 41% of the late deaths, she said.

The patients included in this analysis were all highest level trauma activation patients enrolled in the ongoing study between 2005 and 2012. Comprehensive prospective data were collected, and patients were followed throughout their hospitalization and after discharge. Institutional medical records or death certificates were used to determine timing and cause of death, and survival status was determined based on the last date of care in the institution or by query of the National Death Index for 2013.

These findings provide a rare glimpse of trauma-related outcomes among patients discharged from the hospital. Most prior studies focused on 30-day outcomes, with a few extended out to 90 days, but very few studies have looked at long-term outcomes, Dr. Callcut noted.

“You could say that despite having survived to leave the hospital alive, long-term survival is actually worse than predicted actuarial survival, and this suggests to us that successful hospital discharge does not mean success for your patient,” she concluded.

Dr. Callcut was supported in part by a National Institutes of Health award.

sworcester@frontlinemedcom.com

LAS VEGAS – A higher-than-expected proportion of trauma-related deaths occur in the months and years after hospital discharge, according to findings from a prospective cohort study.

In 908 trauma patients followed for up to 9.8 years (median, 1.7 years), overall mortality was 27%, and in 509 patients followed for at least 2 years, overall mortality was 38%. Mortality was highest among those who were severely injured (43% at 5 years), Dr. Rachael A. Callcut reported at the annual meeting of the American Association for the Surgery of Trauma.

Spotmatik/ThinkStock

The median Injury Severity Scale score was 18, but for all ISS groups, survival was significantly worse than predicted actuarial survival for that group – even after exclusion of deaths that occurred within 30 days, she said.

For example, at 5 years, predicted actuarial survival was greater than 95%, but actual survival was about 90% for those with ISS less than 15, about 85% for those with ISS of 15-24, and about 57% for those with ISS greater than 24. This dose-response–like relationship between injury severity and mortality demonstrates that the deaths are not just occurring in “patients who are old and would have died from a heart attack anyway” she explained.

The 30-day mortality in the cohort was 22%, and in-hospital mortality was 22.9%, as eight patients who died after the first 30 days did so in the hospital. Forty-five of the 245 deaths (18%) occurred after 30 days, and 36 of those (80%) occurred after hospital discharge, meaning the out-of-hospital mortality rate was 5.3% overall, and 10% for the most severely injured (hazard ratio, 2.7 for the most severe vs. the least severe injuries).

“I personally found this quite striking given that when a patient leaves the hospital, we feel, to some degree, that we won – only to find out that at least 5% of these patients will go on to subsequently die,” said Dr. Callcut of the University of California San Francisco, adding that “if you look at it slightly differently, which is even more concerning, 37 of the out-of-hospital deaths of the total of 245 deaths, mean that out-of-hospital deaths account for 15% of the total mortality following trauma.”

Further, of the deaths that occurred after 30 days, 53% occurred between 31 days and 1 year after trauma, and trauma was the leading cause of postdischarge death, accounting for 41% of the late deaths, she said.

The patients included in this analysis were all highest level trauma activation patients enrolled in the ongoing study between 2005 and 2012. Comprehensive prospective data were collected, and patients were followed throughout their hospitalization and after discharge. Institutional medical records or death certificates were used to determine timing and cause of death, and survival status was determined based on the last date of care in the institution or by query of the National Death Index for 2013.

These findings provide a rare glimpse of trauma-related outcomes among patients discharged from the hospital. Most prior studies focused on 30-day outcomes, with a few extended out to 90 days, but very few studies have looked at long-term outcomes, Dr. Callcut noted.

“You could say that despite having survived to leave the hospital alive, long-term survival is actually worse than predicted actuarial survival, and this suggests to us that successful hospital discharge does not mean success for your patient,” she concluded.

Dr. Callcut was supported in part by a National Institutes of Health award.

sworcester@frontlinemedcom.com

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AT THE AAST ANNUAL MEETING

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Key clinical point: A concerning proportion of trauma-related deaths occur after hospital discharge, according to findings from a prospective cohort study.

Major finding: The out-of-hospital mortality rate was 5.3% overall, and 10% for the most severely injured (hazard ratio, 2.7 for the most vs. least severely injured).

Data source: A prospective cohort study involving 908 patients.

Disclosures: Dr. Callcut was supported in part by a National Institutes of Health award.

Data support subcutaneous bortezomib in multiple myeloma

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Data support subcutaneous bortezomib in multiple myeloma

CHICAGO – Subcutaneous and intravenous bortezomib performed comparably well in patients with newly diagnosed multiple myeloma, according to a review of 372 cases.

The findings, which showed a trend toward higher cumulative dosage and improved outcomes with the subcutaneous route, are consistent with those from a phase III study (Lancet Oncology. 2011;12[5]:431-40) of patients with relapsed or refractory multiple myeloma, Dr. Robert M. Rifkin reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Median treatment duration in 248 patients who received subcutaneous bortezomib and 124 who received intravenous bortezomib was similar at 4.4 and 4.1 months, respectively. Dose reductions were required in the first 16 weeks in 10% and 13% of patients in the groups, respectively, and median time to dose reduction was 49 days in both groups, said Dr. Rifkin of the Rocky Mountain Cancer Center, McKesson Specialty Health/US Oncology Network, Denver.

Median relative dose intensities were the same in the two groups, but the subcutaneous group had a higher median cumulative dose (25.8 mg/m2 vs. 22.9 mg/m2). When dichotomized by median cumulative dose, those in the subcutaneous group were more likely to have received the higher dose (52% vs. 48%), he said, noting that a higher cumulative dose was associated with longer improved response and progression-free survival (PFS) at 12 weeks. The odds ratio for improved objective response with greater vs. less than 24.7 mg/m2 was 2.20 and the hazard ratio for PFS was 0.34.

Two-year overall survival was similar at 81% and 78%; 2-year PFS was 75% and 70% in the groups, respectively.

Among 204 patients who were evaluable with respect to response, the complete response/very good partial response rates at a median of 19.1 and 20.8 months were16% and 22% in the subcutaneous and intravenous groups, respectively, Dr. Rifkin said.

Adverse events included neuropathy in 34% and 38%, thrombocytopenia in 13% and 10%, neutropenia in 10% and 5%, and anemia in 25% and 24% of patients in the groups, respectively.

The previously observed noninferiority of subcutaneous vs. intravenous bortezomib has the potential to affect treatment outcomes in the clinical setting, but there was a lack of comparative effectiveness data on the two treatment approaches as initial therapy in newly diagnosed multiple myeloma patients, he noted.

The current findings, based on adults treated between Jan. 1 and Dec. 31, 2012, within the McKesson Specialty Health/US Oncology Network, demonstrate a trend toward higher cumulative dose in the subcutaneous group, which was associated with improved response and PFS. The findings support extended therapy for higher cumulative dosage and better treatment outcomes, he concluded.

Dr. Rifkin is a board or advisory committee member for Celgene, Millenium: The Takeda Oncology Company, and Onyx.

sworcester@frontlinemedcom.com

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CHICAGO – Subcutaneous and intravenous bortezomib performed comparably well in patients with newly diagnosed multiple myeloma, according to a review of 372 cases.

The findings, which showed a trend toward higher cumulative dosage and improved outcomes with the subcutaneous route, are consistent with those from a phase III study (Lancet Oncology. 2011;12[5]:431-40) of patients with relapsed or refractory multiple myeloma, Dr. Robert M. Rifkin reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Median treatment duration in 248 patients who received subcutaneous bortezomib and 124 who received intravenous bortezomib was similar at 4.4 and 4.1 months, respectively. Dose reductions were required in the first 16 weeks in 10% and 13% of patients in the groups, respectively, and median time to dose reduction was 49 days in both groups, said Dr. Rifkin of the Rocky Mountain Cancer Center, McKesson Specialty Health/US Oncology Network, Denver.

Median relative dose intensities were the same in the two groups, but the subcutaneous group had a higher median cumulative dose (25.8 mg/m2 vs. 22.9 mg/m2). When dichotomized by median cumulative dose, those in the subcutaneous group were more likely to have received the higher dose (52% vs. 48%), he said, noting that a higher cumulative dose was associated with longer improved response and progression-free survival (PFS) at 12 weeks. The odds ratio for improved objective response with greater vs. less than 24.7 mg/m2 was 2.20 and the hazard ratio for PFS was 0.34.

Two-year overall survival was similar at 81% and 78%; 2-year PFS was 75% and 70% in the groups, respectively.

Among 204 patients who were evaluable with respect to response, the complete response/very good partial response rates at a median of 19.1 and 20.8 months were16% and 22% in the subcutaneous and intravenous groups, respectively, Dr. Rifkin said.

Adverse events included neuropathy in 34% and 38%, thrombocytopenia in 13% and 10%, neutropenia in 10% and 5%, and anemia in 25% and 24% of patients in the groups, respectively.

The previously observed noninferiority of subcutaneous vs. intravenous bortezomib has the potential to affect treatment outcomes in the clinical setting, but there was a lack of comparative effectiveness data on the two treatment approaches as initial therapy in newly diagnosed multiple myeloma patients, he noted.

The current findings, based on adults treated between Jan. 1 and Dec. 31, 2012, within the McKesson Specialty Health/US Oncology Network, demonstrate a trend toward higher cumulative dose in the subcutaneous group, which was associated with improved response and PFS. The findings support extended therapy for higher cumulative dosage and better treatment outcomes, he concluded.

Dr. Rifkin is a board or advisory committee member for Celgene, Millenium: The Takeda Oncology Company, and Onyx.

sworcester@frontlinemedcom.com

CHICAGO – Subcutaneous and intravenous bortezomib performed comparably well in patients with newly diagnosed multiple myeloma, according to a review of 372 cases.

The findings, which showed a trend toward higher cumulative dosage and improved outcomes with the subcutaneous route, are consistent with those from a phase III study (Lancet Oncology. 2011;12[5]:431-40) of patients with relapsed or refractory multiple myeloma, Dr. Robert M. Rifkin reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Median treatment duration in 248 patients who received subcutaneous bortezomib and 124 who received intravenous bortezomib was similar at 4.4 and 4.1 months, respectively. Dose reductions were required in the first 16 weeks in 10% and 13% of patients in the groups, respectively, and median time to dose reduction was 49 days in both groups, said Dr. Rifkin of the Rocky Mountain Cancer Center, McKesson Specialty Health/US Oncology Network, Denver.

Median relative dose intensities were the same in the two groups, but the subcutaneous group had a higher median cumulative dose (25.8 mg/m2 vs. 22.9 mg/m2). When dichotomized by median cumulative dose, those in the subcutaneous group were more likely to have received the higher dose (52% vs. 48%), he said, noting that a higher cumulative dose was associated with longer improved response and progression-free survival (PFS) at 12 weeks. The odds ratio for improved objective response with greater vs. less than 24.7 mg/m2 was 2.20 and the hazard ratio for PFS was 0.34.

Two-year overall survival was similar at 81% and 78%; 2-year PFS was 75% and 70% in the groups, respectively.

Among 204 patients who were evaluable with respect to response, the complete response/very good partial response rates at a median of 19.1 and 20.8 months were16% and 22% in the subcutaneous and intravenous groups, respectively, Dr. Rifkin said.

Adverse events included neuropathy in 34% and 38%, thrombocytopenia in 13% and 10%, neutropenia in 10% and 5%, and anemia in 25% and 24% of patients in the groups, respectively.

The previously observed noninferiority of subcutaneous vs. intravenous bortezomib has the potential to affect treatment outcomes in the clinical setting, but there was a lack of comparative effectiveness data on the two treatment approaches as initial therapy in newly diagnosed multiple myeloma patients, he noted.

The current findings, based on adults treated between Jan. 1 and Dec. 31, 2012, within the McKesson Specialty Health/US Oncology Network, demonstrate a trend toward higher cumulative dose in the subcutaneous group, which was associated with improved response and PFS. The findings support extended therapy for higher cumulative dosage and better treatment outcomes, he concluded.

Dr. Rifkin is a board or advisory committee member for Celgene, Millenium: The Takeda Oncology Company, and Onyx.

sworcester@frontlinemedcom.com

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Key clinical point: Subcutaneous and intravenous bortezomib performed comparably well in patients with newly diagnosed multiple myeloma, according to a review of 372 cases.

Major finding: 2-year overall survival and progression-free survival were 81% and 78%, and 75% and 70% in the subcutaneous and intravenous groups, respectively.

Data source: A review of 372 newly diagnosed multiple myeloma cases.

Disclosures: Dr. Rifkin is a board or advisory committee member for Celgene, Millenium: The Takeda Oncology Company, and Onyx.

Readmissions for C. difficile infections high among elderly

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LAS VEGAS – More than one in 10 patients with Clostridium difficile infection at the time of hospital discharge are readmitted for C. difficile infection within 90 days, according to findings from a review of Medicare data from 2009 to 2011.

Of a random sample of nearly 900,000 Part A inpatients and Part D prescription drug claimants during the study period, about 8,500 were hospitalized with a primary or secondary diagnosis of C. difficile infection, and of 7,042 of those who were discharged alive and who were eligible for the study, 945 (13.4%) were readmitted within 90 days, Dr. Charles M. Psoinos reported at the annual meeting of the American Association for the Surgery of Trauma.

CDC/D. Holdeman

Compared with 1,900 patients not readmitted for any reason, those who were readmitted had more baseline comorbidities (average Elixhauser index, 5.9 vs. 4.7), and a significantly shorter length of stay during the index hospitalization (9.2 vs. 11.8 days), and those older than 95 years were twice as likely as those aged 65-70 years to be readmitted, as were those with an emergent vs. nonemergent index hospitalization, said Dr. Psoinos of the University of Massachusetts, Worcester.

Further, the readmission rate was lower in the 39% of patients discharged on oral metronidazole (19%), and in the 12% discharged on oral vancomycin (28%), than among the 38% discharged with no ongoing treatment (48%), while those discharged on both oral metronidazole and vancomycin were at increased risk for readmission (odds ratio, 1.29), he said.

The 90-day all cause mortality rate was nearly doubled in those who were readmitted, compared with those who were not (17.8% vs. 8.9%; OR, 1.77), he said.

Patients who were and were not readmitted did not differ significantly with respect to age (mean of about 80 years) and race distribution, and the outcomes were adjusted for the differences in baseline comorbidities and other confounding factors.

The findings could have important implications for reducing readmissions among Medicare beneficiaries, Dr. Psoinos said.

The incidence of C. difficile infections has increased nearly eightfold in the elderly population over the last several decades, and the elderly now account for more than 70% of hospitalized patients with such infections. Recurrence rates range from 5% to 31% after cessation of therapy, and readmission rates are similar, he explained, noting that treatment recommendations for C. difficile infections are commonly based on symptoms and their severity, with oral metronidazole recommended for mild and moderate disease, vancomycin only for severe disease, and dual therapy for complicated severe disease.

Though limited by the retrospective design of the study, the findings suggest that C. difficile patients discharged from the hospital may benefit from ongoing monotherapy treatment to reduce subclinical infections and induce long-term eradication, and that elderly patients on dual therapy may benefit from continued hospitalization until they are appropriate for discharge on monotherapy.

These strategies could reduce the rate of readmissions, Dr. Psoinos concluded.

Dr. Psoinos reported having no relevant financial conflicts.

sworcester@frontlinemedcom.com

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LAS VEGAS – More than one in 10 patients with Clostridium difficile infection at the time of hospital discharge are readmitted for C. difficile infection within 90 days, according to findings from a review of Medicare data from 2009 to 2011.

Of a random sample of nearly 900,000 Part A inpatients and Part D prescription drug claimants during the study period, about 8,500 were hospitalized with a primary or secondary diagnosis of C. difficile infection, and of 7,042 of those who were discharged alive and who were eligible for the study, 945 (13.4%) were readmitted within 90 days, Dr. Charles M. Psoinos reported at the annual meeting of the American Association for the Surgery of Trauma.

CDC/D. Holdeman

Compared with 1,900 patients not readmitted for any reason, those who were readmitted had more baseline comorbidities (average Elixhauser index, 5.9 vs. 4.7), and a significantly shorter length of stay during the index hospitalization (9.2 vs. 11.8 days), and those older than 95 years were twice as likely as those aged 65-70 years to be readmitted, as were those with an emergent vs. nonemergent index hospitalization, said Dr. Psoinos of the University of Massachusetts, Worcester.

Further, the readmission rate was lower in the 39% of patients discharged on oral metronidazole (19%), and in the 12% discharged on oral vancomycin (28%), than among the 38% discharged with no ongoing treatment (48%), while those discharged on both oral metronidazole and vancomycin were at increased risk for readmission (odds ratio, 1.29), he said.

The 90-day all cause mortality rate was nearly doubled in those who were readmitted, compared with those who were not (17.8% vs. 8.9%; OR, 1.77), he said.

Patients who were and were not readmitted did not differ significantly with respect to age (mean of about 80 years) and race distribution, and the outcomes were adjusted for the differences in baseline comorbidities and other confounding factors.

The findings could have important implications for reducing readmissions among Medicare beneficiaries, Dr. Psoinos said.

The incidence of C. difficile infections has increased nearly eightfold in the elderly population over the last several decades, and the elderly now account for more than 70% of hospitalized patients with such infections. Recurrence rates range from 5% to 31% after cessation of therapy, and readmission rates are similar, he explained, noting that treatment recommendations for C. difficile infections are commonly based on symptoms and their severity, with oral metronidazole recommended for mild and moderate disease, vancomycin only for severe disease, and dual therapy for complicated severe disease.

Though limited by the retrospective design of the study, the findings suggest that C. difficile patients discharged from the hospital may benefit from ongoing monotherapy treatment to reduce subclinical infections and induce long-term eradication, and that elderly patients on dual therapy may benefit from continued hospitalization until they are appropriate for discharge on monotherapy.

These strategies could reduce the rate of readmissions, Dr. Psoinos concluded.

Dr. Psoinos reported having no relevant financial conflicts.

sworcester@frontlinemedcom.com

LAS VEGAS – More than one in 10 patients with Clostridium difficile infection at the time of hospital discharge are readmitted for C. difficile infection within 90 days, according to findings from a review of Medicare data from 2009 to 2011.

Of a random sample of nearly 900,000 Part A inpatients and Part D prescription drug claimants during the study period, about 8,500 were hospitalized with a primary or secondary diagnosis of C. difficile infection, and of 7,042 of those who were discharged alive and who were eligible for the study, 945 (13.4%) were readmitted within 90 days, Dr. Charles M. Psoinos reported at the annual meeting of the American Association for the Surgery of Trauma.

CDC/D. Holdeman

Compared with 1,900 patients not readmitted for any reason, those who were readmitted had more baseline comorbidities (average Elixhauser index, 5.9 vs. 4.7), and a significantly shorter length of stay during the index hospitalization (9.2 vs. 11.8 days), and those older than 95 years were twice as likely as those aged 65-70 years to be readmitted, as were those with an emergent vs. nonemergent index hospitalization, said Dr. Psoinos of the University of Massachusetts, Worcester.

Further, the readmission rate was lower in the 39% of patients discharged on oral metronidazole (19%), and in the 12% discharged on oral vancomycin (28%), than among the 38% discharged with no ongoing treatment (48%), while those discharged on both oral metronidazole and vancomycin were at increased risk for readmission (odds ratio, 1.29), he said.

The 90-day all cause mortality rate was nearly doubled in those who were readmitted, compared with those who were not (17.8% vs. 8.9%; OR, 1.77), he said.

Patients who were and were not readmitted did not differ significantly with respect to age (mean of about 80 years) and race distribution, and the outcomes were adjusted for the differences in baseline comorbidities and other confounding factors.

The findings could have important implications for reducing readmissions among Medicare beneficiaries, Dr. Psoinos said.

The incidence of C. difficile infections has increased nearly eightfold in the elderly population over the last several decades, and the elderly now account for more than 70% of hospitalized patients with such infections. Recurrence rates range from 5% to 31% after cessation of therapy, and readmission rates are similar, he explained, noting that treatment recommendations for C. difficile infections are commonly based on symptoms and their severity, with oral metronidazole recommended for mild and moderate disease, vancomycin only for severe disease, and dual therapy for complicated severe disease.

Though limited by the retrospective design of the study, the findings suggest that C. difficile patients discharged from the hospital may benefit from ongoing monotherapy treatment to reduce subclinical infections and induce long-term eradication, and that elderly patients on dual therapy may benefit from continued hospitalization until they are appropriate for discharge on monotherapy.

These strategies could reduce the rate of readmissions, Dr. Psoinos concluded.

Dr. Psoinos reported having no relevant financial conflicts.

sworcester@frontlinemedcom.com

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Key clinical point: More than 1 in 10 patients with Clostridium difficile infection at the time of hospital discharge are readmitted for C. difficile infection within 90 days, according to findings from a review of Medicare data from 2009 to 2011.

Major finding: Of 7,042 discharged patients, 945 (13.4%) were readmitted within 90 days.

Data source: A retrospective cohort study of about 900,000 Medicare beneficiaries.

Disclosures: Dr. Psoinos reported having no relevant financial disclosures.

Damage control laparotomy an option for nontrauma secondary peritonitis

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LAS VEGAS – Damage control laparotomy is a safe and reliable approach to the surgical management of patients with severe nontrauma secondary peritonitis who require bowel resection, according a review of 182 cases.

For example, the deferred ostomy rate was 16.7% among 72 patients who underwent damage control laparotomy (DCL), which was significantly lower than the primary ostomy rate of 53.6% in 110 patients who underwent a definitive surgical procedure (DSP), Dr. Maria P. Garcia-Garcia reported at the annual meeting of the American Association for the Surgery of Trauma.

Ryan McVay/Thinkstock

Further, the fistula rate was lower among 60 DCL patients who underwent delayed anastomosis, compared with 51 DSP patients who underwent primary anastomosis (26.7% vs. 37.2%), and the mortality rate was lower in the DCL vs. DSP patients (16.7% vs. 24.5%). These differences did not meet statistical significance due to the sample size. Deaths in the DCL group all occurred in those who underwent delayed anastomosis; deaths in the DSP group occurred in 14 ostomy patients and 13 anastomosis patients, said Dr. Garcia-Garcia of Fundacion Valle del Lili, Cali, Colombia.

Disease severity, as measured by APACHE II scores, was similar in the two groups (mean of about 17 for each group). Septic shock was present in 37% at the time of admission. Mean hospital length of stay and mean intensive care unit length of stay did not differ significantly between the groups, nor did the systemic complication rate, or the rates of multiple organ failure and acute respiratory distress syndrome.

Small-bowel perforation occurred in 77 (42.3%), and colon perforation occurred in 105 (57.7%).

The patients included teens and adults aged 16 years or older (mean of 60.3 years) with severe nontrauma secondary peritonitis (NSPT) who were undergoing bowel resection after enteric perforations between 2003 and 2013. The DSP patients underwent either primary anastomosis or primary ostomy, and the DCL patients underwent segmental bowel resection, temporary abdominal closure, and subsequent delayed anastomosis or deferred ostomy.

DCL is a recognized strategy for managing bowel injuries in trauma patients. It was developed in response to the poor outcomes associated with attempting definitive repair, but evidence regarding the role and timing of anastomosis in DCL in NTSP – a condition associated with high morbidity and a 30% in-hospital mortality rate – is lacking, Dr. Garcia-Garcia said, noting that the current findings suggest it is the preferred approach.

“When a definite surgical repair is chosen, there is a 50/50 chance of performing anastomosis or ostomy. However, when a damage control abbreviated laparotomy is performed, there is a high bowel reconstruction success rate of about 80%. Therefore, damage control abbreviated laparotomy is a reliable and safe option in critically ill nontrauma secondary peritonitis patients. At the end of the day it’s your choice: Would you rather leave your patient with an ostomy or tube, or would you give your patient a chance of successful reconstruction without an ostomy?” she said.

Dr. Garcia-Garcia reported having no disclosures.

sworcester@frontlinemedcom.com

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LAS VEGAS – Damage control laparotomy is a safe and reliable approach to the surgical management of patients with severe nontrauma secondary peritonitis who require bowel resection, according a review of 182 cases.

For example, the deferred ostomy rate was 16.7% among 72 patients who underwent damage control laparotomy (DCL), which was significantly lower than the primary ostomy rate of 53.6% in 110 patients who underwent a definitive surgical procedure (DSP), Dr. Maria P. Garcia-Garcia reported at the annual meeting of the American Association for the Surgery of Trauma.

Ryan McVay/Thinkstock

Further, the fistula rate was lower among 60 DCL patients who underwent delayed anastomosis, compared with 51 DSP patients who underwent primary anastomosis (26.7% vs. 37.2%), and the mortality rate was lower in the DCL vs. DSP patients (16.7% vs. 24.5%). These differences did not meet statistical significance due to the sample size. Deaths in the DCL group all occurred in those who underwent delayed anastomosis; deaths in the DSP group occurred in 14 ostomy patients and 13 anastomosis patients, said Dr. Garcia-Garcia of Fundacion Valle del Lili, Cali, Colombia.

Disease severity, as measured by APACHE II scores, was similar in the two groups (mean of about 17 for each group). Septic shock was present in 37% at the time of admission. Mean hospital length of stay and mean intensive care unit length of stay did not differ significantly between the groups, nor did the systemic complication rate, or the rates of multiple organ failure and acute respiratory distress syndrome.

Small-bowel perforation occurred in 77 (42.3%), and colon perforation occurred in 105 (57.7%).

The patients included teens and adults aged 16 years or older (mean of 60.3 years) with severe nontrauma secondary peritonitis (NSPT) who were undergoing bowel resection after enteric perforations between 2003 and 2013. The DSP patients underwent either primary anastomosis or primary ostomy, and the DCL patients underwent segmental bowel resection, temporary abdominal closure, and subsequent delayed anastomosis or deferred ostomy.

DCL is a recognized strategy for managing bowel injuries in trauma patients. It was developed in response to the poor outcomes associated with attempting definitive repair, but evidence regarding the role and timing of anastomosis in DCL in NTSP – a condition associated with high morbidity and a 30% in-hospital mortality rate – is lacking, Dr. Garcia-Garcia said, noting that the current findings suggest it is the preferred approach.

“When a definite surgical repair is chosen, there is a 50/50 chance of performing anastomosis or ostomy. However, when a damage control abbreviated laparotomy is performed, there is a high bowel reconstruction success rate of about 80%. Therefore, damage control abbreviated laparotomy is a reliable and safe option in critically ill nontrauma secondary peritonitis patients. At the end of the day it’s your choice: Would you rather leave your patient with an ostomy or tube, or would you give your patient a chance of successful reconstruction without an ostomy?” she said.

Dr. Garcia-Garcia reported having no disclosures.

sworcester@frontlinemedcom.com

LAS VEGAS – Damage control laparotomy is a safe and reliable approach to the surgical management of patients with severe nontrauma secondary peritonitis who require bowel resection, according a review of 182 cases.

For example, the deferred ostomy rate was 16.7% among 72 patients who underwent damage control laparotomy (DCL), which was significantly lower than the primary ostomy rate of 53.6% in 110 patients who underwent a definitive surgical procedure (DSP), Dr. Maria P. Garcia-Garcia reported at the annual meeting of the American Association for the Surgery of Trauma.

Ryan McVay/Thinkstock

Further, the fistula rate was lower among 60 DCL patients who underwent delayed anastomosis, compared with 51 DSP patients who underwent primary anastomosis (26.7% vs. 37.2%), and the mortality rate was lower in the DCL vs. DSP patients (16.7% vs. 24.5%). These differences did not meet statistical significance due to the sample size. Deaths in the DCL group all occurred in those who underwent delayed anastomosis; deaths in the DSP group occurred in 14 ostomy patients and 13 anastomosis patients, said Dr. Garcia-Garcia of Fundacion Valle del Lili, Cali, Colombia.

Disease severity, as measured by APACHE II scores, was similar in the two groups (mean of about 17 for each group). Septic shock was present in 37% at the time of admission. Mean hospital length of stay and mean intensive care unit length of stay did not differ significantly between the groups, nor did the systemic complication rate, or the rates of multiple organ failure and acute respiratory distress syndrome.

Small-bowel perforation occurred in 77 (42.3%), and colon perforation occurred in 105 (57.7%).

The patients included teens and adults aged 16 years or older (mean of 60.3 years) with severe nontrauma secondary peritonitis (NSPT) who were undergoing bowel resection after enteric perforations between 2003 and 2013. The DSP patients underwent either primary anastomosis or primary ostomy, and the DCL patients underwent segmental bowel resection, temporary abdominal closure, and subsequent delayed anastomosis or deferred ostomy.

DCL is a recognized strategy for managing bowel injuries in trauma patients. It was developed in response to the poor outcomes associated with attempting definitive repair, but evidence regarding the role and timing of anastomosis in DCL in NTSP – a condition associated with high morbidity and a 30% in-hospital mortality rate – is lacking, Dr. Garcia-Garcia said, noting that the current findings suggest it is the preferred approach.

“When a definite surgical repair is chosen, there is a 50/50 chance of performing anastomosis or ostomy. However, when a damage control abbreviated laparotomy is performed, there is a high bowel reconstruction success rate of about 80%. Therefore, damage control abbreviated laparotomy is a reliable and safe option in critically ill nontrauma secondary peritonitis patients. At the end of the day it’s your choice: Would you rather leave your patient with an ostomy or tube, or would you give your patient a chance of successful reconstruction without an ostomy?” she said.

Dr. Garcia-Garcia reported having no disclosures.

sworcester@frontlinemedcom.com

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Key clinical point: Damage control laparotomy is a safe and reliable approach to the surgical management of patients with severe nontrauma secondary peritonitis who require bowel resection, according a review of 182 cases.

Major finding: The ostomy rate was 16.7% vs. 53.6% with DCL vs. DSP.

Data source: A review of 182 cases.

Disclosures: Dr. Garcia-Garcia reported having no disclosures.

Surgical stabilization bests medical management for rib fractures

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LAS VEGAS – Surgical stabilization of severe rib fractures leads to better outcomes than does the best medical management in critically ill trauma patients, findings from a 2-year, single-center, clinical trial suggest.

For example, the likelihood of respiratory failure was significantly lower in 35 patients who underwent surgical stabilization of severe rib fractures (SSRF) than among 35 who received optimal medical management (odds ratio, 0.22), and the likelihood of tracheostomy was also significantly lower with SSRF (OR, 0.20). These findings remained significant after controlling for a significantly higher RibScore – a radiographically derived score that predicts pulmonary outcomes in rib fracture patients – in the surgery group (score of 4 vs. 3 on a 0-6 scale), and for a significantly lower incidence of intracranial hemorrhage in the surgery group (5.7% vs. 28.6%), Dr. Fredric Pieracci reported at the annual meeting of the American Association for the Surgery of Trauma.

Further, the average daily spirometry value was 280 mL higher in the operative group, and there were nonsignificant trends toward a decreased likelihood of pneumonia (20.1% vs. 31.5%, respectively), decreased number of ventilator days (6.4 vs. 10.6), decreased ICU length of stay (8.3 vs. 10.4 days), and decreased hospital length of stay (15.2 vs. 25.3 days).

Narcotic requirements were similar in the groups, and no deaths occurred, said Dr. Pieracci, of Denver Health Medical Center.

The study, which was conducted at a level 1 trauma center from 2013 to 2014, enrolled adult patients with various rib fracture patterns, including flail chest, three or more fractures with bicortical displacement, 30% or greater hemithorax volume loss, and either severe pain or respiratory failure despite optimal medical management. Only those who presented within 72 hours of their injury were included.

All eligible patients were managed nonoperatively in the first year of the study, and all were managed operatively in the second year using a standardized technique described recently in the Journal of Trauma and Acute Care Surgery. The nonoperative and operative patient groups were well matched with respect to age, gender, mechanism of injury, preexisting lung pathology, and tobacco use, Dr. Pieracci noted.

“In conclusion, we found that surgical stabilization of severe rib fractures was independently associated with improved pulmonary outcomes, specifically respiratory failure, tracheostomy, duration of mechanical ventilation, and spirometry, and based on this we recommend consideration of surgical stabilization in trauma patients who meet one or more of our inclusion criteria,” he said.

Dr. Pieracci reported serving as a speaker for, and receiving research funding and honorarium from DePuy Synthes.

sworcester@frontlinemedcom.com

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LAS VEGAS – Surgical stabilization of severe rib fractures leads to better outcomes than does the best medical management in critically ill trauma patients, findings from a 2-year, single-center, clinical trial suggest.

For example, the likelihood of respiratory failure was significantly lower in 35 patients who underwent surgical stabilization of severe rib fractures (SSRF) than among 35 who received optimal medical management (odds ratio, 0.22), and the likelihood of tracheostomy was also significantly lower with SSRF (OR, 0.20). These findings remained significant after controlling for a significantly higher RibScore – a radiographically derived score that predicts pulmonary outcomes in rib fracture patients – in the surgery group (score of 4 vs. 3 on a 0-6 scale), and for a significantly lower incidence of intracranial hemorrhage in the surgery group (5.7% vs. 28.6%), Dr. Fredric Pieracci reported at the annual meeting of the American Association for the Surgery of Trauma.

Further, the average daily spirometry value was 280 mL higher in the operative group, and there were nonsignificant trends toward a decreased likelihood of pneumonia (20.1% vs. 31.5%, respectively), decreased number of ventilator days (6.4 vs. 10.6), decreased ICU length of stay (8.3 vs. 10.4 days), and decreased hospital length of stay (15.2 vs. 25.3 days).

Narcotic requirements were similar in the groups, and no deaths occurred, said Dr. Pieracci, of Denver Health Medical Center.

The study, which was conducted at a level 1 trauma center from 2013 to 2014, enrolled adult patients with various rib fracture patterns, including flail chest, three or more fractures with bicortical displacement, 30% or greater hemithorax volume loss, and either severe pain or respiratory failure despite optimal medical management. Only those who presented within 72 hours of their injury were included.

All eligible patients were managed nonoperatively in the first year of the study, and all were managed operatively in the second year using a standardized technique described recently in the Journal of Trauma and Acute Care Surgery. The nonoperative and operative patient groups were well matched with respect to age, gender, mechanism of injury, preexisting lung pathology, and tobacco use, Dr. Pieracci noted.

“In conclusion, we found that surgical stabilization of severe rib fractures was independently associated with improved pulmonary outcomes, specifically respiratory failure, tracheostomy, duration of mechanical ventilation, and spirometry, and based on this we recommend consideration of surgical stabilization in trauma patients who meet one or more of our inclusion criteria,” he said.

Dr. Pieracci reported serving as a speaker for, and receiving research funding and honorarium from DePuy Synthes.

sworcester@frontlinemedcom.com

LAS VEGAS – Surgical stabilization of severe rib fractures leads to better outcomes than does the best medical management in critically ill trauma patients, findings from a 2-year, single-center, clinical trial suggest.

For example, the likelihood of respiratory failure was significantly lower in 35 patients who underwent surgical stabilization of severe rib fractures (SSRF) than among 35 who received optimal medical management (odds ratio, 0.22), and the likelihood of tracheostomy was also significantly lower with SSRF (OR, 0.20). These findings remained significant after controlling for a significantly higher RibScore – a radiographically derived score that predicts pulmonary outcomes in rib fracture patients – in the surgery group (score of 4 vs. 3 on a 0-6 scale), and for a significantly lower incidence of intracranial hemorrhage in the surgery group (5.7% vs. 28.6%), Dr. Fredric Pieracci reported at the annual meeting of the American Association for the Surgery of Trauma.

Further, the average daily spirometry value was 280 mL higher in the operative group, and there were nonsignificant trends toward a decreased likelihood of pneumonia (20.1% vs. 31.5%, respectively), decreased number of ventilator days (6.4 vs. 10.6), decreased ICU length of stay (8.3 vs. 10.4 days), and decreased hospital length of stay (15.2 vs. 25.3 days).

Narcotic requirements were similar in the groups, and no deaths occurred, said Dr. Pieracci, of Denver Health Medical Center.

The study, which was conducted at a level 1 trauma center from 2013 to 2014, enrolled adult patients with various rib fracture patterns, including flail chest, three or more fractures with bicortical displacement, 30% or greater hemithorax volume loss, and either severe pain or respiratory failure despite optimal medical management. Only those who presented within 72 hours of their injury were included.

All eligible patients were managed nonoperatively in the first year of the study, and all were managed operatively in the second year using a standardized technique described recently in the Journal of Trauma and Acute Care Surgery. The nonoperative and operative patient groups were well matched with respect to age, gender, mechanism of injury, preexisting lung pathology, and tobacco use, Dr. Pieracci noted.

“In conclusion, we found that surgical stabilization of severe rib fractures was independently associated with improved pulmonary outcomes, specifically respiratory failure, tracheostomy, duration of mechanical ventilation, and spirometry, and based on this we recommend consideration of surgical stabilization in trauma patients who meet one or more of our inclusion criteria,” he said.

Dr. Pieracci reported serving as a speaker for, and receiving research funding and honorarium from DePuy Synthes.

sworcester@frontlinemedcom.com

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Key clinical point: Surgical stabilization of severe rib fractures leads to better outcomes than does best medical management in critically ill trauma patients.

Major finding: Surgery patients were significantly less likely than medically managed patients to experience respiratory failure and tracheotomy (OR, 0.22 and 0.20, respectively).

Data source: A prospective, controlled clinical trial involving 70 patients.

Disclosures: Dr. Pieracci reported serving as a speaker for, and receiving research funding and honorarium from DePuy Synthes.

HELIOS trial: Ibrutinib safely boosts survival in CLL/SLL

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CHICAGO – Adding ibrutinib to bendamustine and rituximab improved outcomes without significantly reducing safety in patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) in the randomized, placebo-controlled, phase III HELIOS trial.

Efficacy results from the double-blind HELIOS trial, as reported by Dr. Asher Alban Chanan-Khan at the 2015 meeting of the American Society of Clinical Oncology, showed that adding ibrutinib to bendamustine and rituximab (BR) significantly extended progression-free survival, compared with BR plus placebo, in patients with CLL/SLL; the risk of progression and death was reduced by 80%.

The current findings, reported by Dr. Chanan-Khan at the American Society of Hematology Meeting on Hematologic Malignancies, demonstrate that this improvement was achieved without sacrificing safety, and they characterize the management of adverse events.

In 578 patients with active chronic CLL/SLL following at least one prior line of systemic therapy who were randomized to receive 420 mg of ibrutinib plus BR or placebo plus BR for six cycles, exposure was 14.7 months and 12.8 months, respectively. Infection rates were similar in the two groups, but exposure-adjusted analysis showed an overall lower infection rate in the ibrutinib group, compared with the placebo group (10.3/100 vs. 11.2/100 patient months), and the rates of grade 3 or higher infections was similar in the groups, said Dr. Chanan-Khan of the Mayo Clinic, Jacksonville, Fla.

The rates of all-grade and grade 3/4 anemia were 22.3% and 3.5%, respectively, in the ibrutinib group, and 28.9% and 8.0%, respectively, in the BR group. The ibrutinib patients also required fewer transfusions – most often red blood cell transfusions (23% vs. 29% in the BR group).This may have been a reflection of restoration of the hematopoietic system in the ibrutinib group, said Dr. Chanan-Khan.

Grade 3/4 neutropenia was similar in the groups (53.7% and 50.5%), but fewer patients discontinued treatment due to treatment-related neutropenia with ibrutinib (1% vs. 2.8%), he noted.

Thrombocytopenia occurred slightly more often in the ibrutinib group (30.7% vs. 24%), but grade 3/4 events occurred in 15% of patients in each group.

Atrial fibrillation (AF) occurred in a small number of patients, but was observed more often with ibrutinib (7.3% vs. 2.8% overall, and 2.8% vs. 0.7% for grade 3/4 AF). Only seven patients required dose interruption – for a median duration of 7 days – to manage AF.

“No dose reductions were required,” said Dr. Chanan-Khan, adding that four patients, all with grade 3/4 AF and all in the ibrutinib group, discontinued therapy because of AF.

“We then analyzed our data to identify potential risk factors for predisposition to AF ... no one baseline risk factor could be identified as causative. However, most patients who developed AF had a known risk factor,” he said.

He added that among those with a prior history of AF, 28% on the ibrutinib arm, and only 9% on the placebo arm, developed AF.

Baseline cardiac comorbidities also were found to have no effect on progression-free survival in either arm.

“We therefore concluded that the risk of AF is low at around 5%, it does not impact progression-free survival, prior history of AF is not a contraindication in the absence of any great freak event, ibrutinib dose interruption or reduction is not warranted, and you should treat CLL patients first for CLL and manage AF second,” he said.

Another important factor that often impacts clinical decision making is the use of anticoagulants or antiplatelet agents and the bleeding risk with ibrutinib, he said, noting that more than 40% of patients in the ibrutinib arm were using such agents.

“We did not see any impact on the progression-free survival outcomes on either of the arms in patients who were on anticoagulant or antiplatelet therapy,” he said.

Bleeding occurred in 31% and 14.6% of patients in the ibrutinib and placebo groups, respectively, and most cases involved grade 1 bruises and contusions. Only four patients discontinued therapy because of bleeding.

The rates of grade 3/4 major bleeding and major hemorrhage events were low in both groups, at less than 4%, and two patients discontinued therapy because of major bleeding. Two patients in the ibrutinib arm died because of major bleeding, including one who had a large preexisting abdominal aortic aneurysm, and one who experienced a large postsurgical intestinal perforation.

“Overall, these data support the use of ibrutinib in patients on concurrent anticoagulant or antiplatelet therapy, with no significantly increased major risk of bleeding with ibrutinib vs. placebo, and most bleeding events being grade 1 in nature,” said Dr. Chanan-Khan.

The rate of treatment-related lymphocytosis – a known pharmacodynamic effect of ibrutinib – occurred in 7% and 5.9% of the ibrutinib and placebo group patients, and most cases resolved within 2 weeks.

 

 

Based on the results of the 2014 phase III RESONATE trial and others looking at ibrutinib as a single-agent treatment for CLL, the agent is considered a new standard of care in patients with previously treated CLL/SLL. HELIOS was the first study to investigate ibrutinib in combination with BR.

“Considering the significant improvement in progression-free survival and overall survival, ibrutinib has a strong overall risk-benefit profile,” Dr. Chanan-Khan concluded.

The HELIOS study was sponsored by Janssen Pharmaceuticals. Dr. Chanan-Khan reported having no disclosures.

sworcester@frontlinemedcom.com

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CHICAGO – Adding ibrutinib to bendamustine and rituximab improved outcomes without significantly reducing safety in patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) in the randomized, placebo-controlled, phase III HELIOS trial.

Efficacy results from the double-blind HELIOS trial, as reported by Dr. Asher Alban Chanan-Khan at the 2015 meeting of the American Society of Clinical Oncology, showed that adding ibrutinib to bendamustine and rituximab (BR) significantly extended progression-free survival, compared with BR plus placebo, in patients with CLL/SLL; the risk of progression and death was reduced by 80%.

The current findings, reported by Dr. Chanan-Khan at the American Society of Hematology Meeting on Hematologic Malignancies, demonstrate that this improvement was achieved without sacrificing safety, and they characterize the management of adverse events.

In 578 patients with active chronic CLL/SLL following at least one prior line of systemic therapy who were randomized to receive 420 mg of ibrutinib plus BR or placebo plus BR for six cycles, exposure was 14.7 months and 12.8 months, respectively. Infection rates were similar in the two groups, but exposure-adjusted analysis showed an overall lower infection rate in the ibrutinib group, compared with the placebo group (10.3/100 vs. 11.2/100 patient months), and the rates of grade 3 or higher infections was similar in the groups, said Dr. Chanan-Khan of the Mayo Clinic, Jacksonville, Fla.

The rates of all-grade and grade 3/4 anemia were 22.3% and 3.5%, respectively, in the ibrutinib group, and 28.9% and 8.0%, respectively, in the BR group. The ibrutinib patients also required fewer transfusions – most often red blood cell transfusions (23% vs. 29% in the BR group).This may have been a reflection of restoration of the hematopoietic system in the ibrutinib group, said Dr. Chanan-Khan.

Grade 3/4 neutropenia was similar in the groups (53.7% and 50.5%), but fewer patients discontinued treatment due to treatment-related neutropenia with ibrutinib (1% vs. 2.8%), he noted.

Thrombocytopenia occurred slightly more often in the ibrutinib group (30.7% vs. 24%), but grade 3/4 events occurred in 15% of patients in each group.

Atrial fibrillation (AF) occurred in a small number of patients, but was observed more often with ibrutinib (7.3% vs. 2.8% overall, and 2.8% vs. 0.7% for grade 3/4 AF). Only seven patients required dose interruption – for a median duration of 7 days – to manage AF.

“No dose reductions were required,” said Dr. Chanan-Khan, adding that four patients, all with grade 3/4 AF and all in the ibrutinib group, discontinued therapy because of AF.

“We then analyzed our data to identify potential risk factors for predisposition to AF ... no one baseline risk factor could be identified as causative. However, most patients who developed AF had a known risk factor,” he said.

He added that among those with a prior history of AF, 28% on the ibrutinib arm, and only 9% on the placebo arm, developed AF.

Baseline cardiac comorbidities also were found to have no effect on progression-free survival in either arm.

“We therefore concluded that the risk of AF is low at around 5%, it does not impact progression-free survival, prior history of AF is not a contraindication in the absence of any great freak event, ibrutinib dose interruption or reduction is not warranted, and you should treat CLL patients first for CLL and manage AF second,” he said.

Another important factor that often impacts clinical decision making is the use of anticoagulants or antiplatelet agents and the bleeding risk with ibrutinib, he said, noting that more than 40% of patients in the ibrutinib arm were using such agents.

“We did not see any impact on the progression-free survival outcomes on either of the arms in patients who were on anticoagulant or antiplatelet therapy,” he said.

Bleeding occurred in 31% and 14.6% of patients in the ibrutinib and placebo groups, respectively, and most cases involved grade 1 bruises and contusions. Only four patients discontinued therapy because of bleeding.

The rates of grade 3/4 major bleeding and major hemorrhage events were low in both groups, at less than 4%, and two patients discontinued therapy because of major bleeding. Two patients in the ibrutinib arm died because of major bleeding, including one who had a large preexisting abdominal aortic aneurysm, and one who experienced a large postsurgical intestinal perforation.

“Overall, these data support the use of ibrutinib in patients on concurrent anticoagulant or antiplatelet therapy, with no significantly increased major risk of bleeding with ibrutinib vs. placebo, and most bleeding events being grade 1 in nature,” said Dr. Chanan-Khan.

The rate of treatment-related lymphocytosis – a known pharmacodynamic effect of ibrutinib – occurred in 7% and 5.9% of the ibrutinib and placebo group patients, and most cases resolved within 2 weeks.

 

 

Based on the results of the 2014 phase III RESONATE trial and others looking at ibrutinib as a single-agent treatment for CLL, the agent is considered a new standard of care in patients with previously treated CLL/SLL. HELIOS was the first study to investigate ibrutinib in combination with BR.

“Considering the significant improvement in progression-free survival and overall survival, ibrutinib has a strong overall risk-benefit profile,” Dr. Chanan-Khan concluded.

The HELIOS study was sponsored by Janssen Pharmaceuticals. Dr. Chanan-Khan reported having no disclosures.

sworcester@frontlinemedcom.com

CHICAGO – Adding ibrutinib to bendamustine and rituximab improved outcomes without significantly reducing safety in patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) in the randomized, placebo-controlled, phase III HELIOS trial.

Efficacy results from the double-blind HELIOS trial, as reported by Dr. Asher Alban Chanan-Khan at the 2015 meeting of the American Society of Clinical Oncology, showed that adding ibrutinib to bendamustine and rituximab (BR) significantly extended progression-free survival, compared with BR plus placebo, in patients with CLL/SLL; the risk of progression and death was reduced by 80%.

The current findings, reported by Dr. Chanan-Khan at the American Society of Hematology Meeting on Hematologic Malignancies, demonstrate that this improvement was achieved without sacrificing safety, and they characterize the management of adverse events.

In 578 patients with active chronic CLL/SLL following at least one prior line of systemic therapy who were randomized to receive 420 mg of ibrutinib plus BR or placebo plus BR for six cycles, exposure was 14.7 months and 12.8 months, respectively. Infection rates were similar in the two groups, but exposure-adjusted analysis showed an overall lower infection rate in the ibrutinib group, compared with the placebo group (10.3/100 vs. 11.2/100 patient months), and the rates of grade 3 or higher infections was similar in the groups, said Dr. Chanan-Khan of the Mayo Clinic, Jacksonville, Fla.

The rates of all-grade and grade 3/4 anemia were 22.3% and 3.5%, respectively, in the ibrutinib group, and 28.9% and 8.0%, respectively, in the BR group. The ibrutinib patients also required fewer transfusions – most often red blood cell transfusions (23% vs. 29% in the BR group).This may have been a reflection of restoration of the hematopoietic system in the ibrutinib group, said Dr. Chanan-Khan.

Grade 3/4 neutropenia was similar in the groups (53.7% and 50.5%), but fewer patients discontinued treatment due to treatment-related neutropenia with ibrutinib (1% vs. 2.8%), he noted.

Thrombocytopenia occurred slightly more often in the ibrutinib group (30.7% vs. 24%), but grade 3/4 events occurred in 15% of patients in each group.

Atrial fibrillation (AF) occurred in a small number of patients, but was observed more often with ibrutinib (7.3% vs. 2.8% overall, and 2.8% vs. 0.7% for grade 3/4 AF). Only seven patients required dose interruption – for a median duration of 7 days – to manage AF.

“No dose reductions were required,” said Dr. Chanan-Khan, adding that four patients, all with grade 3/4 AF and all in the ibrutinib group, discontinued therapy because of AF.

“We then analyzed our data to identify potential risk factors for predisposition to AF ... no one baseline risk factor could be identified as causative. However, most patients who developed AF had a known risk factor,” he said.

He added that among those with a prior history of AF, 28% on the ibrutinib arm, and only 9% on the placebo arm, developed AF.

Baseline cardiac comorbidities also were found to have no effect on progression-free survival in either arm.

“We therefore concluded that the risk of AF is low at around 5%, it does not impact progression-free survival, prior history of AF is not a contraindication in the absence of any great freak event, ibrutinib dose interruption or reduction is not warranted, and you should treat CLL patients first for CLL and manage AF second,” he said.

Another important factor that often impacts clinical decision making is the use of anticoagulants or antiplatelet agents and the bleeding risk with ibrutinib, he said, noting that more than 40% of patients in the ibrutinib arm were using such agents.

“We did not see any impact on the progression-free survival outcomes on either of the arms in patients who were on anticoagulant or antiplatelet therapy,” he said.

Bleeding occurred in 31% and 14.6% of patients in the ibrutinib and placebo groups, respectively, and most cases involved grade 1 bruises and contusions. Only four patients discontinued therapy because of bleeding.

The rates of grade 3/4 major bleeding and major hemorrhage events were low in both groups, at less than 4%, and two patients discontinued therapy because of major bleeding. Two patients in the ibrutinib arm died because of major bleeding, including one who had a large preexisting abdominal aortic aneurysm, and one who experienced a large postsurgical intestinal perforation.

“Overall, these data support the use of ibrutinib in patients on concurrent anticoagulant or antiplatelet therapy, with no significantly increased major risk of bleeding with ibrutinib vs. placebo, and most bleeding events being grade 1 in nature,” said Dr. Chanan-Khan.

The rate of treatment-related lymphocytosis – a known pharmacodynamic effect of ibrutinib – occurred in 7% and 5.9% of the ibrutinib and placebo group patients, and most cases resolved within 2 weeks.

 

 

Based on the results of the 2014 phase III RESONATE trial and others looking at ibrutinib as a single-agent treatment for CLL, the agent is considered a new standard of care in patients with previously treated CLL/SLL. HELIOS was the first study to investigate ibrutinib in combination with BR.

“Considering the significant improvement in progression-free survival and overall survival, ibrutinib has a strong overall risk-benefit profile,” Dr. Chanan-Khan concluded.

The HELIOS study was sponsored by Janssen Pharmaceuticals. Dr. Chanan-Khan reported having no disclosures.

sworcester@frontlinemedcom.com

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Key clinical point: Adding ibrutinib to bendamustine and rituximab improved outcomes without significantly reducing safety in patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL).

Major finding: The overall infection rate was lower in the ibrutinib group than in the placebo group (10.3/100 vs. 11.2/100 patient months).

Data source: The phase III HELIOS study involving 578 patients.

Disclosures: Janssen Pharmaceuticals sponsored the study. Dr. Chanan-Khan reported having no disclosures.

Statins curb skeletal events in multiple myeloma

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CHICAGO – Statin use is associated with a decrease in the prevalence of skeletal-related events in patients with stage I multiple myeloma, findings from a review of 120 cases suggest.

The prevalence of skeletal-related events (SREs) was 35% in 54 patients who had been treated with statins, compared with 56% in 66 statin-naive patients. The difference between the groups remained significant after adjusting for bisphosphonate use, calcium and vitamin D supplementation, history of osteoporosis, and second malignancy, Dr. Fernando Vargas of the University of Miami reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Study subjects were adults with multiple myeloma seen at a single institution between 2007 and 2012. Those with statin use prior to the development of SREs – defined as pathologic fractures, necessity of orthopedic intervention, radiation therapy, or spinal cord compression – were included. Patients with smoldering myeloma or monoclonal gammopathy of indeterminate significance were excluded.

The statin-experienced and statin-naive groups were similar with respect to smoking history, alcohol abuse, documented diagnosis of osteoporosis, coexistent malignancy, hypothyroidsim, Paget’s disease of the bone, and use of bisphosphonates or calcium plus vitamin D supplementation. The groups also were similar with respect to distribution of cancer staging, and after correcting for International Surgical Staging stage, the SRE risk reduction associated with statin use was significant only in patients with stage I multiple myeloma. One patient with stage I disease (10%) in the statin-experienced group developed SREs, compared with 6 (62%) in the statin-naive group, Dr. Vargas said.

SREs are associated with significant morbidity and mortality in patients with multiple myeloma, and the results of studies assessing the effect of statins on overall disease response in myeloma patients undergoing chemotherapy have been conflicting, he explained, noting that “this analysis was proposed on the grounds that statins inhibit the mevalonic acid pathway upstream from the site of action of bisphosphonates (i.e. famesyl diphosphate synthase blockade), an integral part of multiple myeloma supportive treatment.”

He and his colleagues hypothesized that, given their site of action, statins would have bone protective effects.

Indeed, statins were found to be associated with a decrease in the prevalence of SREs in patients with stage I multiple myeloma, he said.

“Given the well documented safety profile of statins and their ease of use, we suggest that a prospective study be done to further assess their role in the prevention of SREs in multiple myeloma patients,” he concluded, noting that the findings in ISS stage I patients also suggest a possible role for statin use in patients with high-risk smoldering myeloma.

Dr. Vargas reported having no disclosures.

sworcester@frontlinemedcom.com

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CHICAGO – Statin use is associated with a decrease in the prevalence of skeletal-related events in patients with stage I multiple myeloma, findings from a review of 120 cases suggest.

The prevalence of skeletal-related events (SREs) was 35% in 54 patients who had been treated with statins, compared with 56% in 66 statin-naive patients. The difference between the groups remained significant after adjusting for bisphosphonate use, calcium and vitamin D supplementation, history of osteoporosis, and second malignancy, Dr. Fernando Vargas of the University of Miami reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Study subjects were adults with multiple myeloma seen at a single institution between 2007 and 2012. Those with statin use prior to the development of SREs – defined as pathologic fractures, necessity of orthopedic intervention, radiation therapy, or spinal cord compression – were included. Patients with smoldering myeloma or monoclonal gammopathy of indeterminate significance were excluded.

The statin-experienced and statin-naive groups were similar with respect to smoking history, alcohol abuse, documented diagnosis of osteoporosis, coexistent malignancy, hypothyroidsim, Paget’s disease of the bone, and use of bisphosphonates or calcium plus vitamin D supplementation. The groups also were similar with respect to distribution of cancer staging, and after correcting for International Surgical Staging stage, the SRE risk reduction associated with statin use was significant only in patients with stage I multiple myeloma. One patient with stage I disease (10%) in the statin-experienced group developed SREs, compared with 6 (62%) in the statin-naive group, Dr. Vargas said.

SREs are associated with significant morbidity and mortality in patients with multiple myeloma, and the results of studies assessing the effect of statins on overall disease response in myeloma patients undergoing chemotherapy have been conflicting, he explained, noting that “this analysis was proposed on the grounds that statins inhibit the mevalonic acid pathway upstream from the site of action of bisphosphonates (i.e. famesyl diphosphate synthase blockade), an integral part of multiple myeloma supportive treatment.”

He and his colleagues hypothesized that, given their site of action, statins would have bone protective effects.

Indeed, statins were found to be associated with a decrease in the prevalence of SREs in patients with stage I multiple myeloma, he said.

“Given the well documented safety profile of statins and their ease of use, we suggest that a prospective study be done to further assess their role in the prevention of SREs in multiple myeloma patients,” he concluded, noting that the findings in ISS stage I patients also suggest a possible role for statin use in patients with high-risk smoldering myeloma.

Dr. Vargas reported having no disclosures.

sworcester@frontlinemedcom.com

CHICAGO – Statin use is associated with a decrease in the prevalence of skeletal-related events in patients with stage I multiple myeloma, findings from a review of 120 cases suggest.

The prevalence of skeletal-related events (SREs) was 35% in 54 patients who had been treated with statins, compared with 56% in 66 statin-naive patients. The difference between the groups remained significant after adjusting for bisphosphonate use, calcium and vitamin D supplementation, history of osteoporosis, and second malignancy, Dr. Fernando Vargas of the University of Miami reported in a poster at the American Society of Hematology Meeting on Hematologic Malignancies.

Study subjects were adults with multiple myeloma seen at a single institution between 2007 and 2012. Those with statin use prior to the development of SREs – defined as pathologic fractures, necessity of orthopedic intervention, radiation therapy, or spinal cord compression – were included. Patients with smoldering myeloma or monoclonal gammopathy of indeterminate significance were excluded.

The statin-experienced and statin-naive groups were similar with respect to smoking history, alcohol abuse, documented diagnosis of osteoporosis, coexistent malignancy, hypothyroidsim, Paget’s disease of the bone, and use of bisphosphonates or calcium plus vitamin D supplementation. The groups also were similar with respect to distribution of cancer staging, and after correcting for International Surgical Staging stage, the SRE risk reduction associated with statin use was significant only in patients with stage I multiple myeloma. One patient with stage I disease (10%) in the statin-experienced group developed SREs, compared with 6 (62%) in the statin-naive group, Dr. Vargas said.

SREs are associated with significant morbidity and mortality in patients with multiple myeloma, and the results of studies assessing the effect of statins on overall disease response in myeloma patients undergoing chemotherapy have been conflicting, he explained, noting that “this analysis was proposed on the grounds that statins inhibit the mevalonic acid pathway upstream from the site of action of bisphosphonates (i.e. famesyl diphosphate synthase blockade), an integral part of multiple myeloma supportive treatment.”

He and his colleagues hypothesized that, given their site of action, statins would have bone protective effects.

Indeed, statins were found to be associated with a decrease in the prevalence of SREs in patients with stage I multiple myeloma, he said.

“Given the well documented safety profile of statins and their ease of use, we suggest that a prospective study be done to further assess their role in the prevention of SREs in multiple myeloma patients,” he concluded, noting that the findings in ISS stage I patients also suggest a possible role for statin use in patients with high-risk smoldering myeloma.

Dr. Vargas reported having no disclosures.

sworcester@frontlinemedcom.com

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Key clinical point: Statin use may reduce the risk of skeletal-related events in patients with stage I multiple myeloma.

Major finding: The prevalence of skeletal-related events was 35% in statin-experienced patients and 56% in statin-naive patients.

Data source: A retrospective cohort study of 120 cases.

Disclosures: Dr. Vargas reported having no disclosures.

PROPPR finds resuscitation strategy had no effect on laparotomy outcomes

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LAS VEGAS – Choice of damage control resuscitation – plasma-platelet-red blood cell ratio of either 1:1:1 or 1:1:2 – did not affect whether severely injured patients required an emergency laparotomy, nor did it affect time to laparotomy or survival following laparotomy, according to findings from the Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial.

“We were unable to detect significant effects of damage control resuscitation on the frequency and time to emergency laparotomy, outcomes, disposition at 30 days, or main endpoint survival,” said Dr. Vicente J. Undurraga Perl of the Oregon Health and Science University, Portland. The lack of a difference between the treatment groups with respect to emergency laparotomy and 30-day survival may be a result of the low overall mortality of 23% and to the study being underpowered to detect a difference between the groups.

The PROPPR trial demonstrated that damage control resuscitation, defined as “a massive transfusion strategy targeting a balanced delivery of plasma-platelet-RBC in a ratio of 1:1:1,” allows earlier achievement of hemostasis in a greater number of severely injured patients than does a 1:1:2 ratio. A corresponding reduction in deaths because of exsanguination was observed in the study subjects, who were enrolled from 12 level-1 trauma centers in North America, where they presented with severe injuries.

Of 680 patients who had severe injuries and were predicted to require massive transfusions, 613 underwent a surgical procedure and 397 underwent a laparotomy. Of the latter, 346 were emergency laparotomies. Of those who received damage control resuscitation using the 1:1:1 ratio, 52% underwent emergency laparotomy (defined as laparotomy within 90 minutes of arrival at a trauma center). Of those who received the 1:1:2 ratio, 50% underwent emergency laparotomy. The difference between the groups was not statistically significant, Dr. Perl reported at the annual meeting of the American Association for the Surgery of Trauma.

The median time to laparotomy was 28 minutes in both groups, and the proportions of patients who survived to 3 hours, 6 hours, 24 hours, and 30 days also were similar in the two groups. For example, 88% and 85% of those in the 1:1:1 and 1:1:2 groups, respectively, survived to 24 hours; 82% and 77%, respectively, survived to 30 days, he said.

There was no overall difference in mortality between the groups (hazard ratio, 0.78), nor was there a difference in survival by study site, he noted.

Dr. Perl reported having no disclosures.

sworcester@frontlinemedcom.com

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LAS VEGAS – Choice of damage control resuscitation – plasma-platelet-red blood cell ratio of either 1:1:1 or 1:1:2 – did not affect whether severely injured patients required an emergency laparotomy, nor did it affect time to laparotomy or survival following laparotomy, according to findings from the Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial.

“We were unable to detect significant effects of damage control resuscitation on the frequency and time to emergency laparotomy, outcomes, disposition at 30 days, or main endpoint survival,” said Dr. Vicente J. Undurraga Perl of the Oregon Health and Science University, Portland. The lack of a difference between the treatment groups with respect to emergency laparotomy and 30-day survival may be a result of the low overall mortality of 23% and to the study being underpowered to detect a difference between the groups.

The PROPPR trial demonstrated that damage control resuscitation, defined as “a massive transfusion strategy targeting a balanced delivery of plasma-platelet-RBC in a ratio of 1:1:1,” allows earlier achievement of hemostasis in a greater number of severely injured patients than does a 1:1:2 ratio. A corresponding reduction in deaths because of exsanguination was observed in the study subjects, who were enrolled from 12 level-1 trauma centers in North America, where they presented with severe injuries.

Of 680 patients who had severe injuries and were predicted to require massive transfusions, 613 underwent a surgical procedure and 397 underwent a laparotomy. Of the latter, 346 were emergency laparotomies. Of those who received damage control resuscitation using the 1:1:1 ratio, 52% underwent emergency laparotomy (defined as laparotomy within 90 minutes of arrival at a trauma center). Of those who received the 1:1:2 ratio, 50% underwent emergency laparotomy. The difference between the groups was not statistically significant, Dr. Perl reported at the annual meeting of the American Association for the Surgery of Trauma.

The median time to laparotomy was 28 minutes in both groups, and the proportions of patients who survived to 3 hours, 6 hours, 24 hours, and 30 days also were similar in the two groups. For example, 88% and 85% of those in the 1:1:1 and 1:1:2 groups, respectively, survived to 24 hours; 82% and 77%, respectively, survived to 30 days, he said.

There was no overall difference in mortality between the groups (hazard ratio, 0.78), nor was there a difference in survival by study site, he noted.

Dr. Perl reported having no disclosures.

sworcester@frontlinemedcom.com

LAS VEGAS – Choice of damage control resuscitation – plasma-platelet-red blood cell ratio of either 1:1:1 or 1:1:2 – did not affect whether severely injured patients required an emergency laparotomy, nor did it affect time to laparotomy or survival following laparotomy, according to findings from the Pragmatic Randomized Optimal Platelet and Plasma Ratios (PROPPR) trial.

“We were unable to detect significant effects of damage control resuscitation on the frequency and time to emergency laparotomy, outcomes, disposition at 30 days, or main endpoint survival,” said Dr. Vicente J. Undurraga Perl of the Oregon Health and Science University, Portland. The lack of a difference between the treatment groups with respect to emergency laparotomy and 30-day survival may be a result of the low overall mortality of 23% and to the study being underpowered to detect a difference between the groups.

The PROPPR trial demonstrated that damage control resuscitation, defined as “a massive transfusion strategy targeting a balanced delivery of plasma-platelet-RBC in a ratio of 1:1:1,” allows earlier achievement of hemostasis in a greater number of severely injured patients than does a 1:1:2 ratio. A corresponding reduction in deaths because of exsanguination was observed in the study subjects, who were enrolled from 12 level-1 trauma centers in North America, where they presented with severe injuries.

Of 680 patients who had severe injuries and were predicted to require massive transfusions, 613 underwent a surgical procedure and 397 underwent a laparotomy. Of the latter, 346 were emergency laparotomies. Of those who received damage control resuscitation using the 1:1:1 ratio, 52% underwent emergency laparotomy (defined as laparotomy within 90 minutes of arrival at a trauma center). Of those who received the 1:1:2 ratio, 50% underwent emergency laparotomy. The difference between the groups was not statistically significant, Dr. Perl reported at the annual meeting of the American Association for the Surgery of Trauma.

The median time to laparotomy was 28 minutes in both groups, and the proportions of patients who survived to 3 hours, 6 hours, 24 hours, and 30 days also were similar in the two groups. For example, 88% and 85% of those in the 1:1:1 and 1:1:2 groups, respectively, survived to 24 hours; 82% and 77%, respectively, survived to 30 days, he said.

There was no overall difference in mortality between the groups (hazard ratio, 0.78), nor was there a difference in survival by study site, he noted.

Dr. Perl reported having no disclosures.

sworcester@frontlinemedcom.com

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Vitals

Key clinical point: Choice of damage control resuscitation – plasma-platelet-red blood cell ratio of either 1:1:1 or 1:1:2 – does not affect whether severely injured patients require an emergency laparotomy, time to laparotomy, or survival following laparotomy.

Major finding: 52% of patients in the 1:1:1-ratio emergency resuscitation group and 50% in the 1:1:2-ratio group underwent emergency laparotomy, and 30-day survival was 82% and 77%, respectively.

Data source: An analysis of data for 680 patients from the PROPPR trial.

Disclosures: Dr. Perl reported having no disclosures.

ICEID: TCAD regimen shows promise against H3N2 flu variant

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ICEID: TCAD regimen shows promise against H3N2 flu variant

ATLANTA – Triple combination antiviral drug therapy offers a broad-spectrum treatment option for H3N2 variant influenza virus, according to findings from an in vitro study.

The finding suggest that the combination could play an important role in the event of an influenza pandemic, Carrie Sitz reported in a poster at the International Conference on Emerging Infectious Diseases.

CDC/Dr. Michael Shaw; Doug Jordan, M.A.
Triple therapy achieved a therapeutic effect with lower doses of component drugs in an in vitro study of the treatment for an H3N2 variant.

After a human infection with the novel A/H3N2 variant was reported in 2011, and trivalent inactivated influenza vaccine was found to be of limited use, as it provided protection against H3N2 but not the H3N2 variant (H3N2v) in ferrets and elicited cross-protection against H3N2 in young adults but not older adults or children, a triple combination antiviral therapy (TCAD) regimen was considered.

Amantadine, oseltamivir carboxylate, and ribavirin each were tested alone and in double and triple combinations against the novel H3N2 variant virus carrying genes from avian, swine, and human origins. Triple therapy achieved a therapeutic effect with lower doses of component drugs, compared with monotherapies of antivirals as single agents, said Ms. Sitz, a microbiology research assistant at the Naval Health Research Center, San Diego.

The agents, which each have different mechanisms of action and which function at distinct points in the virus life cycle, were tested using the various combinations in 96-well plates seeded with Madin-Darby Canine Kidney (MDCK) epithelial cells. They were found to produce synergistic antiviral activity, she noted.

A control experiment in the absence of the drugs also was performed.

Of note, amantadine had no activity as a single agent against H3N2v, even at 100 mcg/mL, the highest dose tested. However, amantadine did contribute to the synergy of the TCAD regimen. This effect was concentration dependent; the potential synergy volume increased steadily and significantly from about 300 to about 450, to about 575, and to about 600 as the amantadine concentration increased from +0.32, to +1.0, to +3.2, to +10, Ms. Sitz noted, adding that this may indicate that amantadine, which is known to have widespread resistance, can still play a therapeutic role in the setting of the TCAD regimen.

Vaccines are usually an effective safeguard against seasonal influenza but may be inadequate in seasons when a novel influenza emerges, resulting in compromised standard of care for treating the emergent viruses, she said, noting that this is especially true in immunocompromised patients.

“These issues point to the likelihood that we may be unprepared for a novel influenza virus displaying both virulence and transmissibility,” she added.

The current findings suggest that TCAD, which has previously been shown to be effective against seasonal and H5 influenza strains, is a broad-spectrum treatment option that could potentially play a role in pandemic preparedness. The mechanism by which oseltamivir carboxylate and ribavirin potentiate amantadine in combination therapy is unknown, and further testing is needed for evaluation, she concluded.

This study was sponsored by the Armed Forces Health Surveillance Center. The authors reported having no conflicts of interest.

sworcester@frontlinemedcom.com

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ATLANTA – Triple combination antiviral drug therapy offers a broad-spectrum treatment option for H3N2 variant influenza virus, according to findings from an in vitro study.

The finding suggest that the combination could play an important role in the event of an influenza pandemic, Carrie Sitz reported in a poster at the International Conference on Emerging Infectious Diseases.

CDC/Dr. Michael Shaw; Doug Jordan, M.A.
Triple therapy achieved a therapeutic effect with lower doses of component drugs in an in vitro study of the treatment for an H3N2 variant.

After a human infection with the novel A/H3N2 variant was reported in 2011, and trivalent inactivated influenza vaccine was found to be of limited use, as it provided protection against H3N2 but not the H3N2 variant (H3N2v) in ferrets and elicited cross-protection against H3N2 in young adults but not older adults or children, a triple combination antiviral therapy (TCAD) regimen was considered.

Amantadine, oseltamivir carboxylate, and ribavirin each were tested alone and in double and triple combinations against the novel H3N2 variant virus carrying genes from avian, swine, and human origins. Triple therapy achieved a therapeutic effect with lower doses of component drugs, compared with monotherapies of antivirals as single agents, said Ms. Sitz, a microbiology research assistant at the Naval Health Research Center, San Diego.

The agents, which each have different mechanisms of action and which function at distinct points in the virus life cycle, were tested using the various combinations in 96-well plates seeded with Madin-Darby Canine Kidney (MDCK) epithelial cells. They were found to produce synergistic antiviral activity, she noted.

A control experiment in the absence of the drugs also was performed.

Of note, amantadine had no activity as a single agent against H3N2v, even at 100 mcg/mL, the highest dose tested. However, amantadine did contribute to the synergy of the TCAD regimen. This effect was concentration dependent; the potential synergy volume increased steadily and significantly from about 300 to about 450, to about 575, and to about 600 as the amantadine concentration increased from +0.32, to +1.0, to +3.2, to +10, Ms. Sitz noted, adding that this may indicate that amantadine, which is known to have widespread resistance, can still play a therapeutic role in the setting of the TCAD regimen.

Vaccines are usually an effective safeguard against seasonal influenza but may be inadequate in seasons when a novel influenza emerges, resulting in compromised standard of care for treating the emergent viruses, she said, noting that this is especially true in immunocompromised patients.

“These issues point to the likelihood that we may be unprepared for a novel influenza virus displaying both virulence and transmissibility,” she added.

The current findings suggest that TCAD, which has previously been shown to be effective against seasonal and H5 influenza strains, is a broad-spectrum treatment option that could potentially play a role in pandemic preparedness. The mechanism by which oseltamivir carboxylate and ribavirin potentiate amantadine in combination therapy is unknown, and further testing is needed for evaluation, she concluded.

This study was sponsored by the Armed Forces Health Surveillance Center. The authors reported having no conflicts of interest.

sworcester@frontlinemedcom.com

ATLANTA – Triple combination antiviral drug therapy offers a broad-spectrum treatment option for H3N2 variant influenza virus, according to findings from an in vitro study.

The finding suggest that the combination could play an important role in the event of an influenza pandemic, Carrie Sitz reported in a poster at the International Conference on Emerging Infectious Diseases.

CDC/Dr. Michael Shaw; Doug Jordan, M.A.
Triple therapy achieved a therapeutic effect with lower doses of component drugs in an in vitro study of the treatment for an H3N2 variant.

After a human infection with the novel A/H3N2 variant was reported in 2011, and trivalent inactivated influenza vaccine was found to be of limited use, as it provided protection against H3N2 but not the H3N2 variant (H3N2v) in ferrets and elicited cross-protection against H3N2 in young adults but not older adults or children, a triple combination antiviral therapy (TCAD) regimen was considered.

Amantadine, oseltamivir carboxylate, and ribavirin each were tested alone and in double and triple combinations against the novel H3N2 variant virus carrying genes from avian, swine, and human origins. Triple therapy achieved a therapeutic effect with lower doses of component drugs, compared with monotherapies of antivirals as single agents, said Ms. Sitz, a microbiology research assistant at the Naval Health Research Center, San Diego.

The agents, which each have different mechanisms of action and which function at distinct points in the virus life cycle, were tested using the various combinations in 96-well plates seeded with Madin-Darby Canine Kidney (MDCK) epithelial cells. They were found to produce synergistic antiviral activity, she noted.

A control experiment in the absence of the drugs also was performed.

Of note, amantadine had no activity as a single agent against H3N2v, even at 100 mcg/mL, the highest dose tested. However, amantadine did contribute to the synergy of the TCAD regimen. This effect was concentration dependent; the potential synergy volume increased steadily and significantly from about 300 to about 450, to about 575, and to about 600 as the amantadine concentration increased from +0.32, to +1.0, to +3.2, to +10, Ms. Sitz noted, adding that this may indicate that amantadine, which is known to have widespread resistance, can still play a therapeutic role in the setting of the TCAD regimen.

Vaccines are usually an effective safeguard against seasonal influenza but may be inadequate in seasons when a novel influenza emerges, resulting in compromised standard of care for treating the emergent viruses, she said, noting that this is especially true in immunocompromised patients.

“These issues point to the likelihood that we may be unprepared for a novel influenza virus displaying both virulence and transmissibility,” she added.

The current findings suggest that TCAD, which has previously been shown to be effective against seasonal and H5 influenza strains, is a broad-spectrum treatment option that could potentially play a role in pandemic preparedness. The mechanism by which oseltamivir carboxylate and ribavirin potentiate amantadine in combination therapy is unknown, and further testing is needed for evaluation, she concluded.

This study was sponsored by the Armed Forces Health Surveillance Center. The authors reported having no conflicts of interest.

sworcester@frontlinemedcom.com

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AT ICEID 2015

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Inside the Article

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Key clinical point: Triple combination antiviral drug therapy, or TCAD, offers a broad-spectrum treatment option for H3N2 variant influenza virus.

Major finding: Triple therapy achieved a therapeutic effect with lower doses of component drugs, compared with monotherapies of antivirals as single agents.

Data source: An in vitro study of TCAD for H3N2v.

Disclosures: This study was sponsored by the Armed Forces Health Surveillance Center. The authors reported having no conflicts of interest.