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Genetic risk score for low vitamin D may affect MS relapse rate
BALTIMORE – A genetic scoring system for identifying individuals at high risk for low vitamin D levels also detected multiple sclerosis patients with an increased risk for relapse in a multicenter cohort study.
The findings could have clinical significance in multiple sclerosis (MS) treatment and patient counseling, Jennifer S. Graves, MD, PhD, of the University of California, San Francisco, said in a brief oral and poster presentation of the study at the annual meeting of the American Neurological Association.
Low vitamin D levels are associated with an increased risk of MS, but whether this association is causal has not been determined. Dr. Graves and her colleagues sought to gain insight into the potential causality of vitamin D in the association by focusing on 29 single nucleotide polymorphisms (SNPs) within genes that had been previously been discovered to be involved in the manufacture of 25-OH vitamin D and finding their relationship to relapse in patients with MS.
The investigators compared the SNP profile of a discovery cohort of 181 patients with MS or high-risk clinically isolated syndrome (the discovery cohort) who were enrolled at two pediatric MS centers in California between 2006 and 2011 against a replication cohort of 110 patients of comparable age, race, and median vitamin D serum level who were enrolled at nine MS centers elsewhere in the United States from 2011 to 2015.
Three of the SNPs were strongly associated with the vitamin D levels in the discovery cohort after a statistical correction that revealed individual influences of genes among the 29 different mutations. The researchers used these three SNPs to generate risk scores for vitamin D levels. A comparison of the lowest and highest scores revealed a linear association with vitamin D levels. The highest scores were associated with serum vitamin D levels that were nearly 15 ng/mL lower in both the discovery and replication cohorts (P = .00000052 and .002, respectively).
The risk of MS relapse for individuals with the highest risk score in the discovery cohort was nearly twice as high as it was for individuals with the lowest risk score (hazard ratio, 1.94; 95% confidence interval, 1.19-3.15; P = .007).
“A genetic score of three functional SNPs captures risk of low vitamin D level and identifies those who may be at risk of relapse related to this risk factor. These findings support a causal association of vitamin D with relapse rate,” Dr. Graves said.
The study may potentially be important beyond MS. “This risk score may also have some utility in other disease states where vitamin D deficiency may be contributing to disease course,” she said.
The study was funded by The Race to Erase MS, the National Multiple Sclerosis Society, and the National Institute of Neurological Disorders and Stroke. Dr. Graves had no disclosures.
BALTIMORE – A genetic scoring system for identifying individuals at high risk for low vitamin D levels also detected multiple sclerosis patients with an increased risk for relapse in a multicenter cohort study.
The findings could have clinical significance in multiple sclerosis (MS) treatment and patient counseling, Jennifer S. Graves, MD, PhD, of the University of California, San Francisco, said in a brief oral and poster presentation of the study at the annual meeting of the American Neurological Association.
Low vitamin D levels are associated with an increased risk of MS, but whether this association is causal has not been determined. Dr. Graves and her colleagues sought to gain insight into the potential causality of vitamin D in the association by focusing on 29 single nucleotide polymorphisms (SNPs) within genes that had been previously been discovered to be involved in the manufacture of 25-OH vitamin D and finding their relationship to relapse in patients with MS.
The investigators compared the SNP profile of a discovery cohort of 181 patients with MS or high-risk clinically isolated syndrome (the discovery cohort) who were enrolled at two pediatric MS centers in California between 2006 and 2011 against a replication cohort of 110 patients of comparable age, race, and median vitamin D serum level who were enrolled at nine MS centers elsewhere in the United States from 2011 to 2015.
Three of the SNPs were strongly associated with the vitamin D levels in the discovery cohort after a statistical correction that revealed individual influences of genes among the 29 different mutations. The researchers used these three SNPs to generate risk scores for vitamin D levels. A comparison of the lowest and highest scores revealed a linear association with vitamin D levels. The highest scores were associated with serum vitamin D levels that were nearly 15 ng/mL lower in both the discovery and replication cohorts (P = .00000052 and .002, respectively).
The risk of MS relapse for individuals with the highest risk score in the discovery cohort was nearly twice as high as it was for individuals with the lowest risk score (hazard ratio, 1.94; 95% confidence interval, 1.19-3.15; P = .007).
“A genetic score of three functional SNPs captures risk of low vitamin D level and identifies those who may be at risk of relapse related to this risk factor. These findings support a causal association of vitamin D with relapse rate,” Dr. Graves said.
The study may potentially be important beyond MS. “This risk score may also have some utility in other disease states where vitamin D deficiency may be contributing to disease course,” she said.
The study was funded by The Race to Erase MS, the National Multiple Sclerosis Society, and the National Institute of Neurological Disorders and Stroke. Dr. Graves had no disclosures.
BALTIMORE – A genetic scoring system for identifying individuals at high risk for low vitamin D levels also detected multiple sclerosis patients with an increased risk for relapse in a multicenter cohort study.
The findings could have clinical significance in multiple sclerosis (MS) treatment and patient counseling, Jennifer S. Graves, MD, PhD, of the University of California, San Francisco, said in a brief oral and poster presentation of the study at the annual meeting of the American Neurological Association.
Low vitamin D levels are associated with an increased risk of MS, but whether this association is causal has not been determined. Dr. Graves and her colleagues sought to gain insight into the potential causality of vitamin D in the association by focusing on 29 single nucleotide polymorphisms (SNPs) within genes that had been previously been discovered to be involved in the manufacture of 25-OH vitamin D and finding their relationship to relapse in patients with MS.
The investigators compared the SNP profile of a discovery cohort of 181 patients with MS or high-risk clinically isolated syndrome (the discovery cohort) who were enrolled at two pediatric MS centers in California between 2006 and 2011 against a replication cohort of 110 patients of comparable age, race, and median vitamin D serum level who were enrolled at nine MS centers elsewhere in the United States from 2011 to 2015.
Three of the SNPs were strongly associated with the vitamin D levels in the discovery cohort after a statistical correction that revealed individual influences of genes among the 29 different mutations. The researchers used these three SNPs to generate risk scores for vitamin D levels. A comparison of the lowest and highest scores revealed a linear association with vitamin D levels. The highest scores were associated with serum vitamin D levels that were nearly 15 ng/mL lower in both the discovery and replication cohorts (P = .00000052 and .002, respectively).
The risk of MS relapse for individuals with the highest risk score in the discovery cohort was nearly twice as high as it was for individuals with the lowest risk score (hazard ratio, 1.94; 95% confidence interval, 1.19-3.15; P = .007).
“A genetic score of three functional SNPs captures risk of low vitamin D level and identifies those who may be at risk of relapse related to this risk factor. These findings support a causal association of vitamin D with relapse rate,” Dr. Graves said.
The study may potentially be important beyond MS. “This risk score may also have some utility in other disease states where vitamin D deficiency may be contributing to disease course,” she said.
The study was funded by The Race to Erase MS, the National Multiple Sclerosis Society, and the National Institute of Neurological Disorders and Stroke. Dr. Graves had no disclosures.
AT ANA 2016
Key clinical point:
Major finding: The risk of MS relapse was 94% greater for individuals with the highest genetic risk score for low serum vitamin D level, compared with those who had the lowest risk score.
Data source: Databases of patients enrolled at two pediatric MS centers in California and nine national MS centers.
Disclosures: The study was funded by The Race to Erase MS, the National Multiple Sclerosis Society, and the National Institute of Neurological Disorders and Stroke. Dr. Graves had no disclosures.
Earlier ischemic stroke presentation may sometimes mean delayed tPA
BALTIMORE – Going to the hospital soon after the development of symptoms of acute ischemic stroke may not guarantee quick treatment.
A study of 1,865 patients treated within the past decade at a large urban comprehensive stroke center has revealed delayed treatment with tissue plasminogen activator, compared with patients who came to the emergency room hours after symptom development, Dr. Kyle C. Rossi said at the annual meeting of the American Neurological Association.
“When there is a bit more time to treat, we do feel a sense of relief, as it gives us a bit more time to find out more about the patient’s situation. Unfortunately, this extra time can result in delayed treatment, compared to patients who come in later,” said Dr. Rossi, a third-year neurology resident at Mount Sinai Hospital, New York.
Treatment with tissue plasminogen activator (tPA) within 3 hours after the first symptoms of acute ischemic stroke definitely improves long-term outcomes, but meeting this target time remains a challenge. Patients who present to the emergency room soon after symptom development would seemingly have an advantage, yet Dr. Rossi’s preliminary scrutiny of patient records at Mount Sinai raised doubts about this and prompted the present study.
The hypothesis was that cases with a shorter time between symptom development and diagnosis of stroke (last known well-to-stroke code time, or LKW-to-code) will have a longer time between diagnosis and tPA administration (code-to-tPA), “possibly due to the perception on the part of evaluating physicians of sufficient remaining time before the end of the tPA window.”
The researchers examined patient records from the American Heart Association/American Stroke Association’s “Get with the Guidelines” stroke program, a voluntary observational registry for patients with acute stroke. Of the 1,865 ischemic stroke patients treated during 2009-2015, 122 who received intravenous tPA were allocated to three LKW-to-code groups: within an hour (38 patients), within the next hour (49 patients), or 2 hours or more (35 patients).
The patients tended to be in their late 60s. Just over half were female, and about 40% were white.
Overall, the average LKW-to-code time was 91 ± 48 minutes and the average code-to-tPA time was 67 ± 26 minutes.
Average code-to-tPA times were 80, 67, and 52 minutes, respectively, for the three groups (P less than .0001). On average, it took 28 minutes longer to give tPA to patients who presented within an hour than to patients presenting 2 hours or longer after their first stroke symptom. There was an increase in code-to-tPA time of 1 minute for every decrease in LKW-to-code time of 4 minutes (P less than .0001).
The delay in the time to treat patients who arrive sooner after development of stroke symptoms may result from a decision made by the evaluating neurologist to conduct additional testing prior to administering tPA. Sometimes other staff may be unaware of the decision to delay treatment, according to Dr. Rossi and his colleagues.
“Absolutely, folks coming in soon after symptoms develop should be treated early. But treatment needs to balance rapid delivery with adequate testing. Sometimes, when there is some time to spare before the optimum treatment window closes we can do a more thorough examination and address lingering questions,” Dr. Rossi said.
The decision to get more information about the patient’s condition reflects the goal to give tPA as soon as safely possible to the right patients. While laudable, the study highlights that the timing of treatment can be improved.
Dr. Rossi reported having no financial disclosures.
BALTIMORE – Going to the hospital soon after the development of symptoms of acute ischemic stroke may not guarantee quick treatment.
A study of 1,865 patients treated within the past decade at a large urban comprehensive stroke center has revealed delayed treatment with tissue plasminogen activator, compared with patients who came to the emergency room hours after symptom development, Dr. Kyle C. Rossi said at the annual meeting of the American Neurological Association.
“When there is a bit more time to treat, we do feel a sense of relief, as it gives us a bit more time to find out more about the patient’s situation. Unfortunately, this extra time can result in delayed treatment, compared to patients who come in later,” said Dr. Rossi, a third-year neurology resident at Mount Sinai Hospital, New York.
Treatment with tissue plasminogen activator (tPA) within 3 hours after the first symptoms of acute ischemic stroke definitely improves long-term outcomes, but meeting this target time remains a challenge. Patients who present to the emergency room soon after symptom development would seemingly have an advantage, yet Dr. Rossi’s preliminary scrutiny of patient records at Mount Sinai raised doubts about this and prompted the present study.
The hypothesis was that cases with a shorter time between symptom development and diagnosis of stroke (last known well-to-stroke code time, or LKW-to-code) will have a longer time between diagnosis and tPA administration (code-to-tPA), “possibly due to the perception on the part of evaluating physicians of sufficient remaining time before the end of the tPA window.”
The researchers examined patient records from the American Heart Association/American Stroke Association’s “Get with the Guidelines” stroke program, a voluntary observational registry for patients with acute stroke. Of the 1,865 ischemic stroke patients treated during 2009-2015, 122 who received intravenous tPA were allocated to three LKW-to-code groups: within an hour (38 patients), within the next hour (49 patients), or 2 hours or more (35 patients).
The patients tended to be in their late 60s. Just over half were female, and about 40% were white.
Overall, the average LKW-to-code time was 91 ± 48 minutes and the average code-to-tPA time was 67 ± 26 minutes.
Average code-to-tPA times were 80, 67, and 52 minutes, respectively, for the three groups (P less than .0001). On average, it took 28 minutes longer to give tPA to patients who presented within an hour than to patients presenting 2 hours or longer after their first stroke symptom. There was an increase in code-to-tPA time of 1 minute for every decrease in LKW-to-code time of 4 minutes (P less than .0001).
The delay in the time to treat patients who arrive sooner after development of stroke symptoms may result from a decision made by the evaluating neurologist to conduct additional testing prior to administering tPA. Sometimes other staff may be unaware of the decision to delay treatment, according to Dr. Rossi and his colleagues.
“Absolutely, folks coming in soon after symptoms develop should be treated early. But treatment needs to balance rapid delivery with adequate testing. Sometimes, when there is some time to spare before the optimum treatment window closes we can do a more thorough examination and address lingering questions,” Dr. Rossi said.
The decision to get more information about the patient’s condition reflects the goal to give tPA as soon as safely possible to the right patients. While laudable, the study highlights that the timing of treatment can be improved.
Dr. Rossi reported having no financial disclosures.
BALTIMORE – Going to the hospital soon after the development of symptoms of acute ischemic stroke may not guarantee quick treatment.
A study of 1,865 patients treated within the past decade at a large urban comprehensive stroke center has revealed delayed treatment with tissue plasminogen activator, compared with patients who came to the emergency room hours after symptom development, Dr. Kyle C. Rossi said at the annual meeting of the American Neurological Association.
“When there is a bit more time to treat, we do feel a sense of relief, as it gives us a bit more time to find out more about the patient’s situation. Unfortunately, this extra time can result in delayed treatment, compared to patients who come in later,” said Dr. Rossi, a third-year neurology resident at Mount Sinai Hospital, New York.
Treatment with tissue plasminogen activator (tPA) within 3 hours after the first symptoms of acute ischemic stroke definitely improves long-term outcomes, but meeting this target time remains a challenge. Patients who present to the emergency room soon after symptom development would seemingly have an advantage, yet Dr. Rossi’s preliminary scrutiny of patient records at Mount Sinai raised doubts about this and prompted the present study.
The hypothesis was that cases with a shorter time between symptom development and diagnosis of stroke (last known well-to-stroke code time, or LKW-to-code) will have a longer time between diagnosis and tPA administration (code-to-tPA), “possibly due to the perception on the part of evaluating physicians of sufficient remaining time before the end of the tPA window.”
The researchers examined patient records from the American Heart Association/American Stroke Association’s “Get with the Guidelines” stroke program, a voluntary observational registry for patients with acute stroke. Of the 1,865 ischemic stroke patients treated during 2009-2015, 122 who received intravenous tPA were allocated to three LKW-to-code groups: within an hour (38 patients), within the next hour (49 patients), or 2 hours or more (35 patients).
The patients tended to be in their late 60s. Just over half were female, and about 40% were white.
Overall, the average LKW-to-code time was 91 ± 48 minutes and the average code-to-tPA time was 67 ± 26 minutes.
Average code-to-tPA times were 80, 67, and 52 minutes, respectively, for the three groups (P less than .0001). On average, it took 28 minutes longer to give tPA to patients who presented within an hour than to patients presenting 2 hours or longer after their first stroke symptom. There was an increase in code-to-tPA time of 1 minute for every decrease in LKW-to-code time of 4 minutes (P less than .0001).
The delay in the time to treat patients who arrive sooner after development of stroke symptoms may result from a decision made by the evaluating neurologist to conduct additional testing prior to administering tPA. Sometimes other staff may be unaware of the decision to delay treatment, according to Dr. Rossi and his colleagues.
“Absolutely, folks coming in soon after symptoms develop should be treated early. But treatment needs to balance rapid delivery with adequate testing. Sometimes, when there is some time to spare before the optimum treatment window closes we can do a more thorough examination and address lingering questions,” Dr. Rossi said.
The decision to get more information about the patient’s condition reflects the goal to give tPA as soon as safely possible to the right patients. While laudable, the study highlights that the timing of treatment can be improved.
Dr. Rossi reported having no financial disclosures.
AT ANA 2016
Key clinical point:
Major finding: TPA was delivered 28 minutes longer on average for patients presenting less than 1 hour after stroke symptoms, compared with patients presenting more than 2 hours after.
Data source: Analysis of 1,865 patients with acute ischemic stroke in the American Heart Association/American Stroke Association’s “Get with the Guidelines” stroke program who were diagnosed at Mount Sinai Hospital in New York.
Disclosures: Dr. Rossi reported having no financial disclosures.
Longer hospitalization, greater care needed for depressed ischemic stroke patients
BALTIMORE – Patients admitted with acute ischemic stroke (AIS) with preexisting major depressive disorder (MDD) are less likely to die while in the hospital but are often hospitalized longer and are more likely to need specialty care when they are discharged, in comparison to similar patients without depression in the National Inpatient Sample.
“Our study displayed an increasing proportion of patients with MDD admitted due to AIS in the last decade with lower mortality but higher morbidity post stroke. In addition, there was less utilization of thrombolysis in this population,” study presenter Arpita Hazra, MD, Northwell Health, Jersey City, N.J., said at the annual meeting of the American Neurological Association.
The influence of MDD following a stroke on patient outcome has been well studied. However, the influence of preexisting MDD on immediate and longer-term outcomes of AIS is unclear. To provide clarity, Dr. Hazra and her colleagues used recent data from more than 4.3 million hospital AIS-related admissions identified in the United States between 2002 and 2012 in the National Inpatient Sample. Nearly 372,000 (8.6%) of the patients had MDD, and the proportion of MDD-related cases rose from 6.4% in 2002 to 10.3% in 2012. The researchers acknowledged that this may not actually represent a real increase. It might reflect, at least in part, the increasing use of the diagnostic ICD-9-CM codes in that decade.
Thrombolysis was carried out in fewer depressed patients than in those without depression (3.8% vs. 4.8%; P less than .001). The odds of death during hospitalization were 36% less for patients with MDD. However, patients with MDD tended to be hospitalized longer than nondepressed patients (median 3.6 vs. 3.4 days; P less than .001) and were nearly 40% more likely to require specialty care following discharge.
“There is a need to explore the reasons behind this disparity in outcomes and thrombolysis utilization in order to improve poststroke outcome in this vulnerable population,” Dr. Hazra said.
At face value, the observation of decreased mortality in AIS patients with preexisting MDD was surprising, according to Dr. Hazra. She suggested that this may reflect prior hospital treatment for these patients, because of other comorbidities associated with depression.
Dr. Hazra reported having no financial disclosures.
BALTIMORE – Patients admitted with acute ischemic stroke (AIS) with preexisting major depressive disorder (MDD) are less likely to die while in the hospital but are often hospitalized longer and are more likely to need specialty care when they are discharged, in comparison to similar patients without depression in the National Inpatient Sample.
“Our study displayed an increasing proportion of patients with MDD admitted due to AIS in the last decade with lower mortality but higher morbidity post stroke. In addition, there was less utilization of thrombolysis in this population,” study presenter Arpita Hazra, MD, Northwell Health, Jersey City, N.J., said at the annual meeting of the American Neurological Association.
The influence of MDD following a stroke on patient outcome has been well studied. However, the influence of preexisting MDD on immediate and longer-term outcomes of AIS is unclear. To provide clarity, Dr. Hazra and her colleagues used recent data from more than 4.3 million hospital AIS-related admissions identified in the United States between 2002 and 2012 in the National Inpatient Sample. Nearly 372,000 (8.6%) of the patients had MDD, and the proportion of MDD-related cases rose from 6.4% in 2002 to 10.3% in 2012. The researchers acknowledged that this may not actually represent a real increase. It might reflect, at least in part, the increasing use of the diagnostic ICD-9-CM codes in that decade.
Thrombolysis was carried out in fewer depressed patients than in those without depression (3.8% vs. 4.8%; P less than .001). The odds of death during hospitalization were 36% less for patients with MDD. However, patients with MDD tended to be hospitalized longer than nondepressed patients (median 3.6 vs. 3.4 days; P less than .001) and were nearly 40% more likely to require specialty care following discharge.
“There is a need to explore the reasons behind this disparity in outcomes and thrombolysis utilization in order to improve poststroke outcome in this vulnerable population,” Dr. Hazra said.
At face value, the observation of decreased mortality in AIS patients with preexisting MDD was surprising, according to Dr. Hazra. She suggested that this may reflect prior hospital treatment for these patients, because of other comorbidities associated with depression.
Dr. Hazra reported having no financial disclosures.
BALTIMORE – Patients admitted with acute ischemic stroke (AIS) with preexisting major depressive disorder (MDD) are less likely to die while in the hospital but are often hospitalized longer and are more likely to need specialty care when they are discharged, in comparison to similar patients without depression in the National Inpatient Sample.
“Our study displayed an increasing proportion of patients with MDD admitted due to AIS in the last decade with lower mortality but higher morbidity post stroke. In addition, there was less utilization of thrombolysis in this population,” study presenter Arpita Hazra, MD, Northwell Health, Jersey City, N.J., said at the annual meeting of the American Neurological Association.
The influence of MDD following a stroke on patient outcome has been well studied. However, the influence of preexisting MDD on immediate and longer-term outcomes of AIS is unclear. To provide clarity, Dr. Hazra and her colleagues used recent data from more than 4.3 million hospital AIS-related admissions identified in the United States between 2002 and 2012 in the National Inpatient Sample. Nearly 372,000 (8.6%) of the patients had MDD, and the proportion of MDD-related cases rose from 6.4% in 2002 to 10.3% in 2012. The researchers acknowledged that this may not actually represent a real increase. It might reflect, at least in part, the increasing use of the diagnostic ICD-9-CM codes in that decade.
Thrombolysis was carried out in fewer depressed patients than in those without depression (3.8% vs. 4.8%; P less than .001). The odds of death during hospitalization were 36% less for patients with MDD. However, patients with MDD tended to be hospitalized longer than nondepressed patients (median 3.6 vs. 3.4 days; P less than .001) and were nearly 40% more likely to require specialty care following discharge.
“There is a need to explore the reasons behind this disparity in outcomes and thrombolysis utilization in order to improve poststroke outcome in this vulnerable population,” Dr. Hazra said.
At face value, the observation of decreased mortality in AIS patients with preexisting MDD was surprising, according to Dr. Hazra. She suggested that this may reflect prior hospital treatment for these patients, because of other comorbidities associated with depression.
Dr. Hazra reported having no financial disclosures.
AT ANA 2016
Key clinical point:
Major finding: In-hospital mortality was significantly lower for depressed patients with acute ischemic stroke, compared with nondepressed patients, but depressed patients had a significantly longer length of hospitalization and higher rate of discharge to specialty care.
Data source: Study of 4.3 million hospital AIS-related admissions identified in the United States during 2002-2012 in the National Inpatient Sample.
Disclosures: Dr. Hazra reported having no financial disclosures.
European ANCA-associated vasculitis guidance gets first makeover since 2009
LONDON – Updated management recommendations for patients with antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis from the European League Against Rheumatism and the European Renal Association-European Dialysis and Transplant Association aim to provide clinicians with reliable guidance on the best approach to treatment.
The update, presented at the European Congress of Rheumatology and recently published online in Annals of the Rheumatic Diseases (Ann Rheum Dis. 2016 Jun 23. doi:10.1136/annrheumdis-2016-209133), reassessed items in the 2009 recommendations for the management of primary systemic vasculitis and focused only on the management of ANCA-associated vasculitis (AAV), according to recommendations task force member Dr. Max Yates.
“In the past 5 years, 1,691 papers have been published on primary systemic vasculitis in internal medicine, rheumatology, and nephrology journals. Together with the licensing of rituximab for AAV, it was an opportune time to update the recommendations with an AAV focus,” Dr. Yates explained. The revised guidance is based on a systematic literature review from January 2007 to February 2015, focusing in particular on specific items that needed updating, such as the importance of ANCA testing and biopsy in diagnosis and follow-up, disease staging at diagnosis, the choices for remission-induction and remission-maintenance therapies, and the drug choices for relapsing and refractory disease. The task force considered for the first time the choice of immunosuppressive drugs and biologic agents (principally rituximab) and immunologic monitoring. They identified patient education as another priority.
“These updated recommendations provide a framework of practice and should apply to the majority of patients with AAV,” added Dr. Yates, who is a clinical fellow at Norwich Medical School at the University of East Anglia and works in the department of rheumatology at the Norfolk and Norwich (England) University Hospital.
The 22-member task force included rheumatologists, internists, nephrologists, a clinical immunologist, an otorhinolaryngologist, a chest physician, an ophthalmologist, a vasculitis nurse, and a patient with vasculitis from 11 countries in Europe and the United States. The task force was convened by rheumatologist Dr. Chetan Mukhtyar of the Norfolk and Norwich University Hospital on behalf of EULAR and by vasculitis and renal specialist Dr. David Jayne of Addenbrooke’s Hospital in Cambridge (England) on behalf of the European Renal Association-European Dialysis and Transplant Association.
The recommendations now contain one single, simple overarching principle, Dr. Mukhtyar said at the congress. That is, the need for shared decision making between the patient and the clinician. This principle is also included as the first point in many of the other recently updated EULAR recommendations on the management of rheumatic diseases.
Both previous and updated versions of the vasculitis recommendations contain 15 recommendations, with some changed and others combined. One key recommendation is about who should treat patients with AAV; it states that patients “should be managed in close collaboration with, or at, centers of expertise,” Dr. Mukhtyar said.“Patients with ANCA-associated vasculitis have often very complex presentations that involve several different specialties, and it is always worthwhile that these patients are looked after by people who commonly see them, because these are rare conditions,” he observed.
Deciding when to perform a biopsy is also covered, with the recommendation being that it can be used to establish a new diagnosis and to further evaluate cases of suspected relapsing vasculitis. “When do you do a biopsy?” Dr. Mukhtyar asked. “Well, every time you can, every time it is clinically feasible,” he suggested.
As for treatment, there are different recommendations depending on whether the aim is to induce or maintain remission and whether there has been a major relapse. In patients with organ- or life-threatening disease, for example, the advice is to use glucocorticoids and either cyclophosphamide or rituximab to induce remission, Dr. Mukhtyar said. The specific dosing or administration of glucocorticoids is not specified as this will depend on the clinical situation, but the advice is to taper down when possible, somewhere between month 3 and 5.
For remission induction in less severe (non–organ threatening) disease, the recommendation is to use glucocorticoids plus either methotrexate or mycophenolate mofetil. Situations when methotrexate or mycophenolate mofetil should and should not be used are specified, notably when cyclophosphamide or rituximab are not available or are contraindicated.
For maintenance of remission, the task force advised using low-dose glucocorticoids plus azathioprine, rituximab, methotrexate, or mycophenolate mofetil.
Guidance on when to use plasma exchange is given for patients with severe disease and options following failure of remission-induction therapy, and when to switch therapy is also covered.
There are also several follow-up recommendations, such as the periodic assessment of cardiovascular risk, and patient-focused recommendations on awareness of the nature, benefits, and risks of therapy.
The recommendations should provide clinicians with reliable guidance on the best approach to treating AAV, according to Dr. Yates. “From the patients’ point of view, these recommendations should provide useful insight into which treatments they are likely to be offered and when. They also emphasize that as a patient, you should have a voice in your treatment and if you have any questions or concerns, be sure to speak with your specialist.”
Dr. Yates and Dr. Mukhtyar did not report having any relevant disclosures.
The prior 2009 EULAR recommendations were very much in need of updating given the plethora of studies in the past 7 years addressing ANCA-associated vasculitis (AAV). The emergence of rituximab as an effective therapy in AAV had to be considered and included in these newer guidelines. Its potential role in both remission induction, as well as remission maintenance of AAV, is addressed.
The recommendations are somewhat complicated, particularly as eosinophilic granulomatosis with polyangiitis (EGPA, previously referred to as Churg-Strauss syndrome) has been included, but most of the well-done prospective clinical trials addressing remission induction and remission maintenance in AAV were limited to patients with granulomatosis with polyangiitis or microscopic polyangiitis and did not include patients with EGPA. The role of plasma exchange is also discussed, but the results of the PEXIVAS trial, which will address that more definitively, are not yet forthcoming. Those results are anticipated in the not too distant future and will much better define that component of management in those most severely ill patients with AAV.
Dr. Robert Spiera |
These recommendations serve as a framework for helping clinicians understand what is widely accepted as standard of care for these diseases but in no way can define individual treatment decisions as the authors acknowledge. Such decisions must become very personalized in relation to details of the patient’s individual comorbidities and other features of their medical and even socioeconomic status. For example, when choosing between rituximab and cyclophosphamide for remission induction in a young woman (or man, for that matter), future fertility concerns (which cyclophosphamide could potentially compromise) are very relevant. Moreover, the costs of rituximab are substantial, and the lack of superiority of rituximab over cyclophosphamide in many situations, particularly in patients with new severe disease, could be an important factor to consider when choosing which immunosuppressive will be used.
Many of the unanswered questions await results of ongoing or upcoming trials, including some addressing the relative efficacy of various remission maintenance regimens (rituximab vs. azathioprine) or the role of plasmapheresis. Many questions in AAV are not easily addressable in clinical trials, such as whether there are some groups of patients in whom remission maintenance therapy should never be withdrawn. However, such questions may be addressed through observational studies of the well-defined patient cohorts and registries that have been developed in the United States and Europe.
Robert F. Spiera, MD, is director of the Scleroderma, Vasculitis, & Myositis Center at the Hospital for Special Surgery, N.Y. He is also professor of clinical medicine at Cornell University, N.Y. He has received research funding and consulting fees from Roche/Genentech, which markets rituximab.
The prior 2009 EULAR recommendations were very much in need of updating given the plethora of studies in the past 7 years addressing ANCA-associated vasculitis (AAV). The emergence of rituximab as an effective therapy in AAV had to be considered and included in these newer guidelines. Its potential role in both remission induction, as well as remission maintenance of AAV, is addressed.
The recommendations are somewhat complicated, particularly as eosinophilic granulomatosis with polyangiitis (EGPA, previously referred to as Churg-Strauss syndrome) has been included, but most of the well-done prospective clinical trials addressing remission induction and remission maintenance in AAV were limited to patients with granulomatosis with polyangiitis or microscopic polyangiitis and did not include patients with EGPA. The role of plasma exchange is also discussed, but the results of the PEXIVAS trial, which will address that more definitively, are not yet forthcoming. Those results are anticipated in the not too distant future and will much better define that component of management in those most severely ill patients with AAV.
Dr. Robert Spiera |
These recommendations serve as a framework for helping clinicians understand what is widely accepted as standard of care for these diseases but in no way can define individual treatment decisions as the authors acknowledge. Such decisions must become very personalized in relation to details of the patient’s individual comorbidities and other features of their medical and even socioeconomic status. For example, when choosing between rituximab and cyclophosphamide for remission induction in a young woman (or man, for that matter), future fertility concerns (which cyclophosphamide could potentially compromise) are very relevant. Moreover, the costs of rituximab are substantial, and the lack of superiority of rituximab over cyclophosphamide in many situations, particularly in patients with new severe disease, could be an important factor to consider when choosing which immunosuppressive will be used.
Many of the unanswered questions await results of ongoing or upcoming trials, including some addressing the relative efficacy of various remission maintenance regimens (rituximab vs. azathioprine) or the role of plasmapheresis. Many questions in AAV are not easily addressable in clinical trials, such as whether there are some groups of patients in whom remission maintenance therapy should never be withdrawn. However, such questions may be addressed through observational studies of the well-defined patient cohorts and registries that have been developed in the United States and Europe.
Robert F. Spiera, MD, is director of the Scleroderma, Vasculitis, & Myositis Center at the Hospital for Special Surgery, N.Y. He is also professor of clinical medicine at Cornell University, N.Y. He has received research funding and consulting fees from Roche/Genentech, which markets rituximab.
The prior 2009 EULAR recommendations were very much in need of updating given the plethora of studies in the past 7 years addressing ANCA-associated vasculitis (AAV). The emergence of rituximab as an effective therapy in AAV had to be considered and included in these newer guidelines. Its potential role in both remission induction, as well as remission maintenance of AAV, is addressed.
The recommendations are somewhat complicated, particularly as eosinophilic granulomatosis with polyangiitis (EGPA, previously referred to as Churg-Strauss syndrome) has been included, but most of the well-done prospective clinical trials addressing remission induction and remission maintenance in AAV were limited to patients with granulomatosis with polyangiitis or microscopic polyangiitis and did not include patients with EGPA. The role of plasma exchange is also discussed, but the results of the PEXIVAS trial, which will address that more definitively, are not yet forthcoming. Those results are anticipated in the not too distant future and will much better define that component of management in those most severely ill patients with AAV.
Dr. Robert Spiera |
These recommendations serve as a framework for helping clinicians understand what is widely accepted as standard of care for these diseases but in no way can define individual treatment decisions as the authors acknowledge. Such decisions must become very personalized in relation to details of the patient’s individual comorbidities and other features of their medical and even socioeconomic status. For example, when choosing between rituximab and cyclophosphamide for remission induction in a young woman (or man, for that matter), future fertility concerns (which cyclophosphamide could potentially compromise) are very relevant. Moreover, the costs of rituximab are substantial, and the lack of superiority of rituximab over cyclophosphamide in many situations, particularly in patients with new severe disease, could be an important factor to consider when choosing which immunosuppressive will be used.
Many of the unanswered questions await results of ongoing or upcoming trials, including some addressing the relative efficacy of various remission maintenance regimens (rituximab vs. azathioprine) or the role of plasmapheresis. Many questions in AAV are not easily addressable in clinical trials, such as whether there are some groups of patients in whom remission maintenance therapy should never be withdrawn. However, such questions may be addressed through observational studies of the well-defined patient cohorts and registries that have been developed in the United States and Europe.
Robert F. Spiera, MD, is director of the Scleroderma, Vasculitis, & Myositis Center at the Hospital for Special Surgery, N.Y. He is also professor of clinical medicine at Cornell University, N.Y. He has received research funding and consulting fees from Roche/Genentech, which markets rituximab.
LONDON – Updated management recommendations for patients with antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis from the European League Against Rheumatism and the European Renal Association-European Dialysis and Transplant Association aim to provide clinicians with reliable guidance on the best approach to treatment.
The update, presented at the European Congress of Rheumatology and recently published online in Annals of the Rheumatic Diseases (Ann Rheum Dis. 2016 Jun 23. doi:10.1136/annrheumdis-2016-209133), reassessed items in the 2009 recommendations for the management of primary systemic vasculitis and focused only on the management of ANCA-associated vasculitis (AAV), according to recommendations task force member Dr. Max Yates.
“In the past 5 years, 1,691 papers have been published on primary systemic vasculitis in internal medicine, rheumatology, and nephrology journals. Together with the licensing of rituximab for AAV, it was an opportune time to update the recommendations with an AAV focus,” Dr. Yates explained. The revised guidance is based on a systematic literature review from January 2007 to February 2015, focusing in particular on specific items that needed updating, such as the importance of ANCA testing and biopsy in diagnosis and follow-up, disease staging at diagnosis, the choices for remission-induction and remission-maintenance therapies, and the drug choices for relapsing and refractory disease. The task force considered for the first time the choice of immunosuppressive drugs and biologic agents (principally rituximab) and immunologic monitoring. They identified patient education as another priority.
“These updated recommendations provide a framework of practice and should apply to the majority of patients with AAV,” added Dr. Yates, who is a clinical fellow at Norwich Medical School at the University of East Anglia and works in the department of rheumatology at the Norfolk and Norwich (England) University Hospital.
The 22-member task force included rheumatologists, internists, nephrologists, a clinical immunologist, an otorhinolaryngologist, a chest physician, an ophthalmologist, a vasculitis nurse, and a patient with vasculitis from 11 countries in Europe and the United States. The task force was convened by rheumatologist Dr. Chetan Mukhtyar of the Norfolk and Norwich University Hospital on behalf of EULAR and by vasculitis and renal specialist Dr. David Jayne of Addenbrooke’s Hospital in Cambridge (England) on behalf of the European Renal Association-European Dialysis and Transplant Association.
The recommendations now contain one single, simple overarching principle, Dr. Mukhtyar said at the congress. That is, the need for shared decision making between the patient and the clinician. This principle is also included as the first point in many of the other recently updated EULAR recommendations on the management of rheumatic diseases.
Both previous and updated versions of the vasculitis recommendations contain 15 recommendations, with some changed and others combined. One key recommendation is about who should treat patients with AAV; it states that patients “should be managed in close collaboration with, or at, centers of expertise,” Dr. Mukhtyar said.“Patients with ANCA-associated vasculitis have often very complex presentations that involve several different specialties, and it is always worthwhile that these patients are looked after by people who commonly see them, because these are rare conditions,” he observed.
Deciding when to perform a biopsy is also covered, with the recommendation being that it can be used to establish a new diagnosis and to further evaluate cases of suspected relapsing vasculitis. “When do you do a biopsy?” Dr. Mukhtyar asked. “Well, every time you can, every time it is clinically feasible,” he suggested.
As for treatment, there are different recommendations depending on whether the aim is to induce or maintain remission and whether there has been a major relapse. In patients with organ- or life-threatening disease, for example, the advice is to use glucocorticoids and either cyclophosphamide or rituximab to induce remission, Dr. Mukhtyar said. The specific dosing or administration of glucocorticoids is not specified as this will depend on the clinical situation, but the advice is to taper down when possible, somewhere between month 3 and 5.
For remission induction in less severe (non–organ threatening) disease, the recommendation is to use glucocorticoids plus either methotrexate or mycophenolate mofetil. Situations when methotrexate or mycophenolate mofetil should and should not be used are specified, notably when cyclophosphamide or rituximab are not available or are contraindicated.
For maintenance of remission, the task force advised using low-dose glucocorticoids plus azathioprine, rituximab, methotrexate, or mycophenolate mofetil.
Guidance on when to use plasma exchange is given for patients with severe disease and options following failure of remission-induction therapy, and when to switch therapy is also covered.
There are also several follow-up recommendations, such as the periodic assessment of cardiovascular risk, and patient-focused recommendations on awareness of the nature, benefits, and risks of therapy.
The recommendations should provide clinicians with reliable guidance on the best approach to treating AAV, according to Dr. Yates. “From the patients’ point of view, these recommendations should provide useful insight into which treatments they are likely to be offered and when. They also emphasize that as a patient, you should have a voice in your treatment and if you have any questions or concerns, be sure to speak with your specialist.”
Dr. Yates and Dr. Mukhtyar did not report having any relevant disclosures.
LONDON – Updated management recommendations for patients with antineutrophil cytoplasmic antibody (ANCA)–associated vasculitis from the European League Against Rheumatism and the European Renal Association-European Dialysis and Transplant Association aim to provide clinicians with reliable guidance on the best approach to treatment.
The update, presented at the European Congress of Rheumatology and recently published online in Annals of the Rheumatic Diseases (Ann Rheum Dis. 2016 Jun 23. doi:10.1136/annrheumdis-2016-209133), reassessed items in the 2009 recommendations for the management of primary systemic vasculitis and focused only on the management of ANCA-associated vasculitis (AAV), according to recommendations task force member Dr. Max Yates.
“In the past 5 years, 1,691 papers have been published on primary systemic vasculitis in internal medicine, rheumatology, and nephrology journals. Together with the licensing of rituximab for AAV, it was an opportune time to update the recommendations with an AAV focus,” Dr. Yates explained. The revised guidance is based on a systematic literature review from January 2007 to February 2015, focusing in particular on specific items that needed updating, such as the importance of ANCA testing and biopsy in diagnosis and follow-up, disease staging at diagnosis, the choices for remission-induction and remission-maintenance therapies, and the drug choices for relapsing and refractory disease. The task force considered for the first time the choice of immunosuppressive drugs and biologic agents (principally rituximab) and immunologic monitoring. They identified patient education as another priority.
“These updated recommendations provide a framework of practice and should apply to the majority of patients with AAV,” added Dr. Yates, who is a clinical fellow at Norwich Medical School at the University of East Anglia and works in the department of rheumatology at the Norfolk and Norwich (England) University Hospital.
The 22-member task force included rheumatologists, internists, nephrologists, a clinical immunologist, an otorhinolaryngologist, a chest physician, an ophthalmologist, a vasculitis nurse, and a patient with vasculitis from 11 countries in Europe and the United States. The task force was convened by rheumatologist Dr. Chetan Mukhtyar of the Norfolk and Norwich University Hospital on behalf of EULAR and by vasculitis and renal specialist Dr. David Jayne of Addenbrooke’s Hospital in Cambridge (England) on behalf of the European Renal Association-European Dialysis and Transplant Association.
The recommendations now contain one single, simple overarching principle, Dr. Mukhtyar said at the congress. That is, the need for shared decision making between the patient and the clinician. This principle is also included as the first point in many of the other recently updated EULAR recommendations on the management of rheumatic diseases.
Both previous and updated versions of the vasculitis recommendations contain 15 recommendations, with some changed and others combined. One key recommendation is about who should treat patients with AAV; it states that patients “should be managed in close collaboration with, or at, centers of expertise,” Dr. Mukhtyar said.“Patients with ANCA-associated vasculitis have often very complex presentations that involve several different specialties, and it is always worthwhile that these patients are looked after by people who commonly see them, because these are rare conditions,” he observed.
Deciding when to perform a biopsy is also covered, with the recommendation being that it can be used to establish a new diagnosis and to further evaluate cases of suspected relapsing vasculitis. “When do you do a biopsy?” Dr. Mukhtyar asked. “Well, every time you can, every time it is clinically feasible,” he suggested.
As for treatment, there are different recommendations depending on whether the aim is to induce or maintain remission and whether there has been a major relapse. In patients with organ- or life-threatening disease, for example, the advice is to use glucocorticoids and either cyclophosphamide or rituximab to induce remission, Dr. Mukhtyar said. The specific dosing or administration of glucocorticoids is not specified as this will depend on the clinical situation, but the advice is to taper down when possible, somewhere between month 3 and 5.
For remission induction in less severe (non–organ threatening) disease, the recommendation is to use glucocorticoids plus either methotrexate or mycophenolate mofetil. Situations when methotrexate or mycophenolate mofetil should and should not be used are specified, notably when cyclophosphamide or rituximab are not available or are contraindicated.
For maintenance of remission, the task force advised using low-dose glucocorticoids plus azathioprine, rituximab, methotrexate, or mycophenolate mofetil.
Guidance on when to use plasma exchange is given for patients with severe disease and options following failure of remission-induction therapy, and when to switch therapy is also covered.
There are also several follow-up recommendations, such as the periodic assessment of cardiovascular risk, and patient-focused recommendations on awareness of the nature, benefits, and risks of therapy.
The recommendations should provide clinicians with reliable guidance on the best approach to treating AAV, according to Dr. Yates. “From the patients’ point of view, these recommendations should provide useful insight into which treatments they are likely to be offered and when. They also emphasize that as a patient, you should have a voice in your treatment and if you have any questions or concerns, be sure to speak with your specialist.”
Dr. Yates and Dr. Mukhtyar did not report having any relevant disclosures.
AT THE EULAR 2016 CONGRESS
VIDEO: FDG-PET/CT useful for fever, inflammation of unknown origin
LONDON – The use of combined modality imaging with 18F-fluorodeoxyglucose-PET/CT may provide enough information to make a definitive diagnosis in patients who present with fever or inflammation of unknown origin, particularly in those who are aged 50 years or older, have elevated C-reactive protein, and have no fever, according to findings from a single-center study of 240 cases.
The retrospective study of patients seen at the University Clinic of Erlangen (Germany) during 2007-2015 found that 18F-FDG-PET/CT was helpful in finding a diagnosis for a majority of patients with fever of unknown origin (FUO) and inflammation of unknown origin (IUO).
In an interview prior to his presentation at the European Congress of Rheumatology, the study’s senior investigator Dr. Georg Schett said that “By implementing a single 18F-FDG-PET/CT scan in a structured diagnostic approach for patients with FUO or IUO we were able to catch the underlying disease in the majority (79%) of the 240 patients studied. In the FUO group the leading diagnosis was adult-onset Still’s disease, [and] in the IUO group it was large-vessel vasculitis and polymyalgia rheumatica.”
FUO was defined about 50 years ago as several episodes of temperature exceeding 38.3° C that accompany an illness lasting more than 3 weeks, with no diagnosis after a week of testing following hospital admittance. If inflammation but no fever is involved, the condition is termed IUO.
FUO and IUO are severe, sometimes even life-threatening conditions, in which the cause of fever and inflammation, respectively, has not been defined using standard diagnostic approaches. This makes diagnosis challenging and requires a costly and complicated work-up. A delayed diagnosis can be serious, resulting in severe organ damage in patients with FUO and IUO due to the underlying, and uncontrolled, inflammatory disease.
The current diagnostic approaches for FUO and IUO include a thorough medical history, physical examination, laboratory testing, and imaging. 18F-FDG-PET/CT imaging could be potentially useful for the diagnosis of FUO/IUO because of its high-resolution detection of inflammation and malignancy. Dr. Schett and his colleagues explored this potential and examined clinical markers that would increase the likelihood of accurate 18F-FDG-PET/CT-based diagnosis in patients presenting with FUO or IUO.
The 240 patients in the study included 72 with FUO and 142 with IUO; the remaining 26 no longer fulfilled the criteria for either condition when they presented to the clinic (“ex-FUO/IUO” patients). The diagnostic work-up included 18F-FDG-PET/CT scans. Scans were considered to be positive when uptake of the tracer occurred at foci in addition to the other expected locations. The investigators explored whether the scans aided the final diagnosis, with multivariable regression analysis clarifying clinical parameters that aided the success of the scans in patients with and without FUO or IUO.
The mean age was 52 for FUO patients, 61 for IUO, and 51 for patients who no longer had IUO or FUO symptoms at presentation. These patients had mean C-reactive protein (CRP) levels of 95, 48, and 2 mg/L, respectively. Males comprised 64% of FUO, 40% of IUO, and 58% of ex-FUO/IUO patients.
18F-FDG-PET/CT was helpful in finding the diagnosis in 57% of all patients and 72% of the patients with a later diagnosis. A definitive diagnosis was not reached in 29% of patients with FUO and 17% of patients with IUO. Predictive markers for a diagnostic 18F-FDG-PET/CT for FUO and IUO were age over 50 years (P = .002 and P = .005, respectively), CRP level over 30 mg/L (P = .003 and P = .005, respectively), and the absence of fever (both P = .003). If all three parameters were fulfilled, 18F-FDG-PET/CT was diagnostic in nearly 80% of the cases, while it was successful in only 8% of cases where none of the three parameters was met.
The latter finding is particularly important, according to Dr. Schett, as it “indicates which patient subgroup is profiting the most from 18F-FDG-PET/CT.”
“FUO and IUO patients should be referred to specialized centers where 18F-FDG-PET/CT scanning is available to improve diagnosis. Simple clinical parameters such as age, CRP-level, and presence/absence of fever can guide targeted use of 18F-FDG-PET/CT,” said Dr. Schett, director of the department of internal medicine III and the Institute for Clinical Immunology at the University of Erlangen-Nuremberg (Germany).
False-positive results with 18F-FDG-PET/CT – when patients had tracer uptake that did not lead to diagnosis of the underlying diseases – are a challenge. “False-positives happen quite often due to activation of bone marrow and lymph node metabolism during inflammation, which does not support diagnosis,” Dr. Schett said. He added that, when tracer uptake associated with systemic inflammation was not considered, false positives were much less common. False-negative results – when 18F-FDG-PET/CT was negative but a diagnosis was made using other approaches – were rare, occurring in only 12 out of the 240 patients.
The research will support establishing recommendations for the use of 18F-FDG-PET/CT in FUO and IUO patients. Other patients could benefit as well. “It may be important to investigate also those patients who were referred for FUO or IUO but do not show fever or inflammation at time of admission,” Dr. Schett said. Of these ex-FUO/IUO patients, four were diagnosed with IgG4-related disease and three with familial Mediterranean syndrome by applying 18F-FDG-PET/CT.
Dr. Schett and the other authors had no disclosures.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
LONDON – The use of combined modality imaging with 18F-fluorodeoxyglucose-PET/CT may provide enough information to make a definitive diagnosis in patients who present with fever or inflammation of unknown origin, particularly in those who are aged 50 years or older, have elevated C-reactive protein, and have no fever, according to findings from a single-center study of 240 cases.
The retrospective study of patients seen at the University Clinic of Erlangen (Germany) during 2007-2015 found that 18F-FDG-PET/CT was helpful in finding a diagnosis for a majority of patients with fever of unknown origin (FUO) and inflammation of unknown origin (IUO).
In an interview prior to his presentation at the European Congress of Rheumatology, the study’s senior investigator Dr. Georg Schett said that “By implementing a single 18F-FDG-PET/CT scan in a structured diagnostic approach for patients with FUO or IUO we were able to catch the underlying disease in the majority (79%) of the 240 patients studied. In the FUO group the leading diagnosis was adult-onset Still’s disease, [and] in the IUO group it was large-vessel vasculitis and polymyalgia rheumatica.”
FUO was defined about 50 years ago as several episodes of temperature exceeding 38.3° C that accompany an illness lasting more than 3 weeks, with no diagnosis after a week of testing following hospital admittance. If inflammation but no fever is involved, the condition is termed IUO.
FUO and IUO are severe, sometimes even life-threatening conditions, in which the cause of fever and inflammation, respectively, has not been defined using standard diagnostic approaches. This makes diagnosis challenging and requires a costly and complicated work-up. A delayed diagnosis can be serious, resulting in severe organ damage in patients with FUO and IUO due to the underlying, and uncontrolled, inflammatory disease.
The current diagnostic approaches for FUO and IUO include a thorough medical history, physical examination, laboratory testing, and imaging. 18F-FDG-PET/CT imaging could be potentially useful for the diagnosis of FUO/IUO because of its high-resolution detection of inflammation and malignancy. Dr. Schett and his colleagues explored this potential and examined clinical markers that would increase the likelihood of accurate 18F-FDG-PET/CT-based diagnosis in patients presenting with FUO or IUO.
The 240 patients in the study included 72 with FUO and 142 with IUO; the remaining 26 no longer fulfilled the criteria for either condition when they presented to the clinic (“ex-FUO/IUO” patients). The diagnostic work-up included 18F-FDG-PET/CT scans. Scans were considered to be positive when uptake of the tracer occurred at foci in addition to the other expected locations. The investigators explored whether the scans aided the final diagnosis, with multivariable regression analysis clarifying clinical parameters that aided the success of the scans in patients with and without FUO or IUO.
The mean age was 52 for FUO patients, 61 for IUO, and 51 for patients who no longer had IUO or FUO symptoms at presentation. These patients had mean C-reactive protein (CRP) levels of 95, 48, and 2 mg/L, respectively. Males comprised 64% of FUO, 40% of IUO, and 58% of ex-FUO/IUO patients.
18F-FDG-PET/CT was helpful in finding the diagnosis in 57% of all patients and 72% of the patients with a later diagnosis. A definitive diagnosis was not reached in 29% of patients with FUO and 17% of patients with IUO. Predictive markers for a diagnostic 18F-FDG-PET/CT for FUO and IUO were age over 50 years (P = .002 and P = .005, respectively), CRP level over 30 mg/L (P = .003 and P = .005, respectively), and the absence of fever (both P = .003). If all three parameters were fulfilled, 18F-FDG-PET/CT was diagnostic in nearly 80% of the cases, while it was successful in only 8% of cases where none of the three parameters was met.
The latter finding is particularly important, according to Dr. Schett, as it “indicates which patient subgroup is profiting the most from 18F-FDG-PET/CT.”
“FUO and IUO patients should be referred to specialized centers where 18F-FDG-PET/CT scanning is available to improve diagnosis. Simple clinical parameters such as age, CRP-level, and presence/absence of fever can guide targeted use of 18F-FDG-PET/CT,” said Dr. Schett, director of the department of internal medicine III and the Institute for Clinical Immunology at the University of Erlangen-Nuremberg (Germany).
False-positive results with 18F-FDG-PET/CT – when patients had tracer uptake that did not lead to diagnosis of the underlying diseases – are a challenge. “False-positives happen quite often due to activation of bone marrow and lymph node metabolism during inflammation, which does not support diagnosis,” Dr. Schett said. He added that, when tracer uptake associated with systemic inflammation was not considered, false positives were much less common. False-negative results – when 18F-FDG-PET/CT was negative but a diagnosis was made using other approaches – were rare, occurring in only 12 out of the 240 patients.
The research will support establishing recommendations for the use of 18F-FDG-PET/CT in FUO and IUO patients. Other patients could benefit as well. “It may be important to investigate also those patients who were referred for FUO or IUO but do not show fever or inflammation at time of admission,” Dr. Schett said. Of these ex-FUO/IUO patients, four were diagnosed with IgG4-related disease and three with familial Mediterranean syndrome by applying 18F-FDG-PET/CT.
Dr. Schett and the other authors had no disclosures.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
LONDON – The use of combined modality imaging with 18F-fluorodeoxyglucose-PET/CT may provide enough information to make a definitive diagnosis in patients who present with fever or inflammation of unknown origin, particularly in those who are aged 50 years or older, have elevated C-reactive protein, and have no fever, according to findings from a single-center study of 240 cases.
The retrospective study of patients seen at the University Clinic of Erlangen (Germany) during 2007-2015 found that 18F-FDG-PET/CT was helpful in finding a diagnosis for a majority of patients with fever of unknown origin (FUO) and inflammation of unknown origin (IUO).
In an interview prior to his presentation at the European Congress of Rheumatology, the study’s senior investigator Dr. Georg Schett said that “By implementing a single 18F-FDG-PET/CT scan in a structured diagnostic approach for patients with FUO or IUO we were able to catch the underlying disease in the majority (79%) of the 240 patients studied. In the FUO group the leading diagnosis was adult-onset Still’s disease, [and] in the IUO group it was large-vessel vasculitis and polymyalgia rheumatica.”
FUO was defined about 50 years ago as several episodes of temperature exceeding 38.3° C that accompany an illness lasting more than 3 weeks, with no diagnosis after a week of testing following hospital admittance. If inflammation but no fever is involved, the condition is termed IUO.
FUO and IUO are severe, sometimes even life-threatening conditions, in which the cause of fever and inflammation, respectively, has not been defined using standard diagnostic approaches. This makes diagnosis challenging and requires a costly and complicated work-up. A delayed diagnosis can be serious, resulting in severe organ damage in patients with FUO and IUO due to the underlying, and uncontrolled, inflammatory disease.
The current diagnostic approaches for FUO and IUO include a thorough medical history, physical examination, laboratory testing, and imaging. 18F-FDG-PET/CT imaging could be potentially useful for the diagnosis of FUO/IUO because of its high-resolution detection of inflammation and malignancy. Dr. Schett and his colleagues explored this potential and examined clinical markers that would increase the likelihood of accurate 18F-FDG-PET/CT-based diagnosis in patients presenting with FUO or IUO.
The 240 patients in the study included 72 with FUO and 142 with IUO; the remaining 26 no longer fulfilled the criteria for either condition when they presented to the clinic (“ex-FUO/IUO” patients). The diagnostic work-up included 18F-FDG-PET/CT scans. Scans were considered to be positive when uptake of the tracer occurred at foci in addition to the other expected locations. The investigators explored whether the scans aided the final diagnosis, with multivariable regression analysis clarifying clinical parameters that aided the success of the scans in patients with and without FUO or IUO.
The mean age was 52 for FUO patients, 61 for IUO, and 51 for patients who no longer had IUO or FUO symptoms at presentation. These patients had mean C-reactive protein (CRP) levels of 95, 48, and 2 mg/L, respectively. Males comprised 64% of FUO, 40% of IUO, and 58% of ex-FUO/IUO patients.
18F-FDG-PET/CT was helpful in finding the diagnosis in 57% of all patients and 72% of the patients with a later diagnosis. A definitive diagnosis was not reached in 29% of patients with FUO and 17% of patients with IUO. Predictive markers for a diagnostic 18F-FDG-PET/CT for FUO and IUO were age over 50 years (P = .002 and P = .005, respectively), CRP level over 30 mg/L (P = .003 and P = .005, respectively), and the absence of fever (both P = .003). If all three parameters were fulfilled, 18F-FDG-PET/CT was diagnostic in nearly 80% of the cases, while it was successful in only 8% of cases where none of the three parameters was met.
The latter finding is particularly important, according to Dr. Schett, as it “indicates which patient subgroup is profiting the most from 18F-FDG-PET/CT.”
“FUO and IUO patients should be referred to specialized centers where 18F-FDG-PET/CT scanning is available to improve diagnosis. Simple clinical parameters such as age, CRP-level, and presence/absence of fever can guide targeted use of 18F-FDG-PET/CT,” said Dr. Schett, director of the department of internal medicine III and the Institute for Clinical Immunology at the University of Erlangen-Nuremberg (Germany).
False-positive results with 18F-FDG-PET/CT – when patients had tracer uptake that did not lead to diagnosis of the underlying diseases – are a challenge. “False-positives happen quite often due to activation of bone marrow and lymph node metabolism during inflammation, which does not support diagnosis,” Dr. Schett said. He added that, when tracer uptake associated with systemic inflammation was not considered, false positives were much less common. False-negative results – when 18F-FDG-PET/CT was negative but a diagnosis was made using other approaches – were rare, occurring in only 12 out of the 240 patients.
The research will support establishing recommendations for the use of 18F-FDG-PET/CT in FUO and IUO patients. Other patients could benefit as well. “It may be important to investigate also those patients who were referred for FUO or IUO but do not show fever or inflammation at time of admission,” Dr. Schett said. Of these ex-FUO/IUO patients, four were diagnosed with IgG4-related disease and three with familial Mediterranean syndrome by applying 18F-FDG-PET/CT.
Dr. Schett and the other authors had no disclosures.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
AT THE EULAR 2016 CONGRESS
Key clinical point: An 18F-FDG-PET/CT scan is most likely to aid diagnosis in patients who present with fever of unknown origin or inflammation of unknown origin if they are aged over 50 years, have elevated CRP level over 30 mg/L, and do not have fever.
Major finding: 18F-FDG-PET/CT was helpful in finding a diagnosis in 57% of all patients and 72% of the patients who eventually received a diagnosis.
Data source: A single-center study of 240 cases of fever of unknown origin or inflammation of unknown origin who underwent 18F-FDG-PET/CT scanning during 2007-2015.
Disclosures: Dr. Schett and the other authors had no disclosures.
Real-world MS relapse rate is low for dimethyl fumarate
NATIONAL HARBOR, MD. – A real-world comparison of relapse rates in multiple sclerosis (MS) patients for five disease-modifying therapies (DMTs) found the largest decrease for delayed-release dimethyl fumarate (DMF) followed by fingolimod. Patients were less likely to adhere to treatment involving teriflunomide, glatiramer acetate, or interferon-beta (IFN-beta).
Real-world outcome data have been limited, so these findings from nearly 6,400 patients presented as a poster at the annual meeting of the Consortium of Multiple Sclerosis Centers will likely be important in guiding decisions on therapy in the management of MS.
“We need real-world data to better understand the behavior of these drugs in our real-world patients. We learn a tremendous amount from phase II and III clinical trials. We attempt to look at clinical trial results and then extrapolate to our real-world patient. However, by virtue of their design, clinical trial populations represent an incomplete MS demographic,” said Dr. Aaron Boster of Riverside Methodist Hospital, Columbus, Ohio.
The retrospective study collected claims data from Truven Health MarketScan databases between January 2012 and September 2014 for adults with MS who commenced DMT with an oral or injectable drug. Annualized relapse rates (ARRs) and DMT adherence were compared for teriflunomide (n = 500), fingolimod (n = 579), IFN-beta (n = 884), glatiramer acetate (n = 1,057), and DMF (n = 3,352).
The primary outcome was ARR, which was determined before and after initiation of DMT, based on the number of MS-related relapses before and in the year following initiation of therapy. Adherence to therapy was measured using the proportion of days covered within the first year after therapy began.
The DMF cohort had the largest reduction in unadjusted ARR, from 0.425 prior to therapy to 0.296 after therapy began (–0.129; P less than .0001), followed by those treated with fingolimod, from 0.442 prior to therapy to 0.307 following therapy (–0.135; P less than .001).
After researchers adjusted for baseline demographics, clinical characteristics, and prior DMT exposure, DMF was associated with significantly lower ARR than was glatiramer acetate, IFN-beta, and teriflunomide. DMF remained better than fingolimod, but the difference was not significant.
Relative to the DMF cohort, the adjusted incidence rate ratio of ARR in the year after DMT began was 1.34 (95% confidence interval, 1.17-1.53) for glatiramer acetate, 1.27 (95% CI, 1.10-1.46) for IFN-beta, 1.23 (95% CI, 1.05-1.45) for teriflunomide, and 1.03 (95% CI, 0.88-1.21) for fingolimod.
“Despite differences in patient demographics and comorbidities between DMT clinical trial populations and these U.S. claims data, the real-world effectiveness reported here is consistent with previous mixed and indirect treatment comparisons based on clinical trial data,” Dr. Boster and his colleagues said.
The implied differences in the real-world comparative effectiveness of the various DMTs should be considered when making decisions about the best therapy to manage MS, according to the researchers.
Dr. Boster disclosed research funding from Genentech, Actelion, and Mallinckrodt, and has received consulting/speaking remuneration from Genzyme, Novartis, Teva, Biogen, and Medtronic. The other researchers have received compensation from or are employees of Biogen.
NATIONAL HARBOR, MD. – A real-world comparison of relapse rates in multiple sclerosis (MS) patients for five disease-modifying therapies (DMTs) found the largest decrease for delayed-release dimethyl fumarate (DMF) followed by fingolimod. Patients were less likely to adhere to treatment involving teriflunomide, glatiramer acetate, or interferon-beta (IFN-beta).
Real-world outcome data have been limited, so these findings from nearly 6,400 patients presented as a poster at the annual meeting of the Consortium of Multiple Sclerosis Centers will likely be important in guiding decisions on therapy in the management of MS.
“We need real-world data to better understand the behavior of these drugs in our real-world patients. We learn a tremendous amount from phase II and III clinical trials. We attempt to look at clinical trial results and then extrapolate to our real-world patient. However, by virtue of their design, clinical trial populations represent an incomplete MS demographic,” said Dr. Aaron Boster of Riverside Methodist Hospital, Columbus, Ohio.
The retrospective study collected claims data from Truven Health MarketScan databases between January 2012 and September 2014 for adults with MS who commenced DMT with an oral or injectable drug. Annualized relapse rates (ARRs) and DMT adherence were compared for teriflunomide (n = 500), fingolimod (n = 579), IFN-beta (n = 884), glatiramer acetate (n = 1,057), and DMF (n = 3,352).
The primary outcome was ARR, which was determined before and after initiation of DMT, based on the number of MS-related relapses before and in the year following initiation of therapy. Adherence to therapy was measured using the proportion of days covered within the first year after therapy began.
The DMF cohort had the largest reduction in unadjusted ARR, from 0.425 prior to therapy to 0.296 after therapy began (–0.129; P less than .0001), followed by those treated with fingolimod, from 0.442 prior to therapy to 0.307 following therapy (–0.135; P less than .001).
After researchers adjusted for baseline demographics, clinical characteristics, and prior DMT exposure, DMF was associated with significantly lower ARR than was glatiramer acetate, IFN-beta, and teriflunomide. DMF remained better than fingolimod, but the difference was not significant.
Relative to the DMF cohort, the adjusted incidence rate ratio of ARR in the year after DMT began was 1.34 (95% confidence interval, 1.17-1.53) for glatiramer acetate, 1.27 (95% CI, 1.10-1.46) for IFN-beta, 1.23 (95% CI, 1.05-1.45) for teriflunomide, and 1.03 (95% CI, 0.88-1.21) for fingolimod.
“Despite differences in patient demographics and comorbidities between DMT clinical trial populations and these U.S. claims data, the real-world effectiveness reported here is consistent with previous mixed and indirect treatment comparisons based on clinical trial data,” Dr. Boster and his colleagues said.
The implied differences in the real-world comparative effectiveness of the various DMTs should be considered when making decisions about the best therapy to manage MS, according to the researchers.
Dr. Boster disclosed research funding from Genentech, Actelion, and Mallinckrodt, and has received consulting/speaking remuneration from Genzyme, Novartis, Teva, Biogen, and Medtronic. The other researchers have received compensation from or are employees of Biogen.
NATIONAL HARBOR, MD. – A real-world comparison of relapse rates in multiple sclerosis (MS) patients for five disease-modifying therapies (DMTs) found the largest decrease for delayed-release dimethyl fumarate (DMF) followed by fingolimod. Patients were less likely to adhere to treatment involving teriflunomide, glatiramer acetate, or interferon-beta (IFN-beta).
Real-world outcome data have been limited, so these findings from nearly 6,400 patients presented as a poster at the annual meeting of the Consortium of Multiple Sclerosis Centers will likely be important in guiding decisions on therapy in the management of MS.
“We need real-world data to better understand the behavior of these drugs in our real-world patients. We learn a tremendous amount from phase II and III clinical trials. We attempt to look at clinical trial results and then extrapolate to our real-world patient. However, by virtue of their design, clinical trial populations represent an incomplete MS demographic,” said Dr. Aaron Boster of Riverside Methodist Hospital, Columbus, Ohio.
The retrospective study collected claims data from Truven Health MarketScan databases between January 2012 and September 2014 for adults with MS who commenced DMT with an oral or injectable drug. Annualized relapse rates (ARRs) and DMT adherence were compared for teriflunomide (n = 500), fingolimod (n = 579), IFN-beta (n = 884), glatiramer acetate (n = 1,057), and DMF (n = 3,352).
The primary outcome was ARR, which was determined before and after initiation of DMT, based on the number of MS-related relapses before and in the year following initiation of therapy. Adherence to therapy was measured using the proportion of days covered within the first year after therapy began.
The DMF cohort had the largest reduction in unadjusted ARR, from 0.425 prior to therapy to 0.296 after therapy began (–0.129; P less than .0001), followed by those treated with fingolimod, from 0.442 prior to therapy to 0.307 following therapy (–0.135; P less than .001).
After researchers adjusted for baseline demographics, clinical characteristics, and prior DMT exposure, DMF was associated with significantly lower ARR than was glatiramer acetate, IFN-beta, and teriflunomide. DMF remained better than fingolimod, but the difference was not significant.
Relative to the DMF cohort, the adjusted incidence rate ratio of ARR in the year after DMT began was 1.34 (95% confidence interval, 1.17-1.53) for glatiramer acetate, 1.27 (95% CI, 1.10-1.46) for IFN-beta, 1.23 (95% CI, 1.05-1.45) for teriflunomide, and 1.03 (95% CI, 0.88-1.21) for fingolimod.
“Despite differences in patient demographics and comorbidities between DMT clinical trial populations and these U.S. claims data, the real-world effectiveness reported here is consistent with previous mixed and indirect treatment comparisons based on clinical trial data,” Dr. Boster and his colleagues said.
The implied differences in the real-world comparative effectiveness of the various DMTs should be considered when making decisions about the best therapy to manage MS, according to the researchers.
Dr. Boster disclosed research funding from Genentech, Actelion, and Mallinckrodt, and has received consulting/speaking remuneration from Genzyme, Novartis, Teva, Biogen, and Medtronic. The other researchers have received compensation from or are employees of Biogen.
AT THE CMSC ANNUAL MEETING
Key clinical point: Comparison of five disease-modifying therapies for MS has revealed the lowest relapse rate for dimethyl fumarate, which should help guide management decisions.
Major finding: Dimethyl fumarate treatment was associated with an unadjusted annualized relapse rate of –0.129, with fingolimod also having a significantly decreased relapse rate.
Data source: Data from claims databases involving nearly 6,400 MS patients.
Disclosures: The study was funded by Biogen. Dr. Boster disclosed research funding from Genentech, Actelion, and Mallinckrodt, and has received consulting/speaking remuneration from Genzyme, Novartis, Teva, Biogen, and Medtronic.
Alemtuzumab beneficial for MS patients of African descent
NATIONAL HARBOR, MD. – A subgroup analysis of 46 patients of African descent with active relapsing-remitting multiple sclerosis (RRMS) from the CARE-MS I and CARE-MS II trials has demonstrated the efficacy of alemtuzumab over 5 years.
The long-term results implicate alemtuzumab as a valuable treatment option for RRMS patients of African descent. These patients are at higher risk of more severe disease.
“In patients of African descent, alemtuzumab had clinical and [magnetic resonance imaging] efficacy comparable with that observed in the overall CARE-MS study population. Efficacy was durable over 5 years, with the majority of patients not receiving alemtuzumab treatment after month 12,” Dr. Annette Okai of the Multiple Sclerosis Treatment Center of Dallas reported at the annual meeting of the Consortium of Multiple Sclerosis Centers.
Patients of African descent have a heightened risk of MS that is more severe and more rapidly debilitating than that of white patients. As well, disease-modifying therapies may not be as effective in this group. To seek a better treatment option, Dr. Okai and colleagues performed a subgroup analysis involving the alemtuzumab treatment arm of the CARE I and II phase III randomized trials.
In CARE-MS I and II, a total of 811 patients received two annual intravenous injections of 12 mg alemtuzumab during the 2-year core phase of the trial and as-needed treatment during the extension phase from years 3 to 5. The trial cohort comprised 46 patients of African descent (80% from the United States, 76% female). Thirty-two of the 46 patients entered the extension phase.
Of the 32 patients, 17 (53%) did not receive retreatment beginning in year 2, and 28 (88%) did not receive another disease-modifying treatment. The efficacy of alemtuzumab in the overall CARE-MS cohort and in patients of African descent was durable over the full 5 years of the study. In those of African descent, the cumulative 0- to 5-year annualized relapse rate was 0.16. Sixty percent of the patients of African descent were relapse free in years 3-5.
Disease severity as measured by Expanded Disability Status Scale scores did not change appreciably over the 5 years (mean change, +0.52). No evidence of disease activity (NEDA) was observed in 33% of alemtuzumab patients in years 0-2, compared with 13% of those in the subcutaneous interferon beta-1a arm of CARE-MS I and II. Rates of NEDA in year 3, 4, and 5 were 45%, 42%, and 56%, respectively, and NEDA was achieved by 25% of the patients of African descent from years 3 to 5.
There were no serious infusion-associated reactions in the patients of African descent and the safety profile was similar to the overall cohort.
The efficacy and durability of alemtuzumab in the overall cohort generally, and in the patients of African descent more particularly, could reflect immunomodulation that is linked to lymphocyte repopulation, Dr. Okai suggested.
“Based on these findings, alemtuzumab may provide a unique treatment approach with durable efficacy in this high-risk population,” she concluded.
The studies were sponsored by Genzyme and Bayer Healthcare Pharmaceuticals. Dr. Okai disclosed receiving consulting fees from Genzyme, Novartis, Teva, Genentech, Biogen, and EMD Serono.
NATIONAL HARBOR, MD. – A subgroup analysis of 46 patients of African descent with active relapsing-remitting multiple sclerosis (RRMS) from the CARE-MS I and CARE-MS II trials has demonstrated the efficacy of alemtuzumab over 5 years.
The long-term results implicate alemtuzumab as a valuable treatment option for RRMS patients of African descent. These patients are at higher risk of more severe disease.
“In patients of African descent, alemtuzumab had clinical and [magnetic resonance imaging] efficacy comparable with that observed in the overall CARE-MS study population. Efficacy was durable over 5 years, with the majority of patients not receiving alemtuzumab treatment after month 12,” Dr. Annette Okai of the Multiple Sclerosis Treatment Center of Dallas reported at the annual meeting of the Consortium of Multiple Sclerosis Centers.
Patients of African descent have a heightened risk of MS that is more severe and more rapidly debilitating than that of white patients. As well, disease-modifying therapies may not be as effective in this group. To seek a better treatment option, Dr. Okai and colleagues performed a subgroup analysis involving the alemtuzumab treatment arm of the CARE I and II phase III randomized trials.
In CARE-MS I and II, a total of 811 patients received two annual intravenous injections of 12 mg alemtuzumab during the 2-year core phase of the trial and as-needed treatment during the extension phase from years 3 to 5. The trial cohort comprised 46 patients of African descent (80% from the United States, 76% female). Thirty-two of the 46 patients entered the extension phase.
Of the 32 patients, 17 (53%) did not receive retreatment beginning in year 2, and 28 (88%) did not receive another disease-modifying treatment. The efficacy of alemtuzumab in the overall CARE-MS cohort and in patients of African descent was durable over the full 5 years of the study. In those of African descent, the cumulative 0- to 5-year annualized relapse rate was 0.16. Sixty percent of the patients of African descent were relapse free in years 3-5.
Disease severity as measured by Expanded Disability Status Scale scores did not change appreciably over the 5 years (mean change, +0.52). No evidence of disease activity (NEDA) was observed in 33% of alemtuzumab patients in years 0-2, compared with 13% of those in the subcutaneous interferon beta-1a arm of CARE-MS I and II. Rates of NEDA in year 3, 4, and 5 were 45%, 42%, and 56%, respectively, and NEDA was achieved by 25% of the patients of African descent from years 3 to 5.
There were no serious infusion-associated reactions in the patients of African descent and the safety profile was similar to the overall cohort.
The efficacy and durability of alemtuzumab in the overall cohort generally, and in the patients of African descent more particularly, could reflect immunomodulation that is linked to lymphocyte repopulation, Dr. Okai suggested.
“Based on these findings, alemtuzumab may provide a unique treatment approach with durable efficacy in this high-risk population,” she concluded.
The studies were sponsored by Genzyme and Bayer Healthcare Pharmaceuticals. Dr. Okai disclosed receiving consulting fees from Genzyme, Novartis, Teva, Genentech, Biogen, and EMD Serono.
NATIONAL HARBOR, MD. – A subgroup analysis of 46 patients of African descent with active relapsing-remitting multiple sclerosis (RRMS) from the CARE-MS I and CARE-MS II trials has demonstrated the efficacy of alemtuzumab over 5 years.
The long-term results implicate alemtuzumab as a valuable treatment option for RRMS patients of African descent. These patients are at higher risk of more severe disease.
“In patients of African descent, alemtuzumab had clinical and [magnetic resonance imaging] efficacy comparable with that observed in the overall CARE-MS study population. Efficacy was durable over 5 years, with the majority of patients not receiving alemtuzumab treatment after month 12,” Dr. Annette Okai of the Multiple Sclerosis Treatment Center of Dallas reported at the annual meeting of the Consortium of Multiple Sclerosis Centers.
Patients of African descent have a heightened risk of MS that is more severe and more rapidly debilitating than that of white patients. As well, disease-modifying therapies may not be as effective in this group. To seek a better treatment option, Dr. Okai and colleagues performed a subgroup analysis involving the alemtuzumab treatment arm of the CARE I and II phase III randomized trials.
In CARE-MS I and II, a total of 811 patients received two annual intravenous injections of 12 mg alemtuzumab during the 2-year core phase of the trial and as-needed treatment during the extension phase from years 3 to 5. The trial cohort comprised 46 patients of African descent (80% from the United States, 76% female). Thirty-two of the 46 patients entered the extension phase.
Of the 32 patients, 17 (53%) did not receive retreatment beginning in year 2, and 28 (88%) did not receive another disease-modifying treatment. The efficacy of alemtuzumab in the overall CARE-MS cohort and in patients of African descent was durable over the full 5 years of the study. In those of African descent, the cumulative 0- to 5-year annualized relapse rate was 0.16. Sixty percent of the patients of African descent were relapse free in years 3-5.
Disease severity as measured by Expanded Disability Status Scale scores did not change appreciably over the 5 years (mean change, +0.52). No evidence of disease activity (NEDA) was observed in 33% of alemtuzumab patients in years 0-2, compared with 13% of those in the subcutaneous interferon beta-1a arm of CARE-MS I and II. Rates of NEDA in year 3, 4, and 5 were 45%, 42%, and 56%, respectively, and NEDA was achieved by 25% of the patients of African descent from years 3 to 5.
There were no serious infusion-associated reactions in the patients of African descent and the safety profile was similar to the overall cohort.
The efficacy and durability of alemtuzumab in the overall cohort generally, and in the patients of African descent more particularly, could reflect immunomodulation that is linked to lymphocyte repopulation, Dr. Okai suggested.
“Based on these findings, alemtuzumab may provide a unique treatment approach with durable efficacy in this high-risk population,” she concluded.
The studies were sponsored by Genzyme and Bayer Healthcare Pharmaceuticals. Dr. Okai disclosed receiving consulting fees from Genzyme, Novartis, Teva, Genentech, Biogen, and EMD Serono.
AT THE CMSC ANNUAL MEETING
Key clinical point: Alemtuzumab had clinical and radiologic benefits in patients of African descent with active RRMS.
Major finding: No evidence of disease activity was evident in 33% of patients of African descent treated with alemtuzumab in the first 2 years of treatment, compared with 13% of patients treated with subcutaneous interferon beta-1a.
Data source: Data from the CARE-MS I and CARE-MS II phase III randomized controlled trials.
Disclosures: The studies were sponsored by Genzyme and Bayer Healthcare Pharmaceuticals. Dr. Okai disclosed receiving consulting fees from Genzyme, Novartis, Teva, Genentech, Biogen, and EMD Serono.
Exercise Improves Sleep and May Improve Cognitive/Physical Function in MS
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
AT THE CMSC ANNUAL MEETING
Exercise improves sleep and may improve cognitive/physical function in MS
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
NATIONAL HARBOR, MD. – A pair of studies by the same research team has clarified how poor sleep worsens cognitive and physical function in people with multiple sclerosis (MS) and how poor sleep can be improved by exercise.
Whether the better sleep directly relates to the cognitive and physical improvements was not shown conclusively. However, a link between exercise and transient cognitive improvement has been demonstrated by others.
“Exercise may be a nonpharmacological and an inexpensive method to address sleep symptoms,” said Catherine Siengsukon, Ph.D., of the University of Kansas Medical Center, Kansas City, at the annual meeting of the Consortium of Multiple Sclerosis Centers.
About half of all people with MS experience poor sleep that results from the disease itself, medications, anxiety/depression, or other causes. The fatigue and reduced physical and psychological function diminish the quality of life and can increase the risk of mortality. “But it is unknown if poor sleep quality may impact physical function in individuals with MS,” said Dr. Siengsukon.
In healthy individuals, cognitive aspects like attention, working and long-term memory, information processing, decision making, and problem solving can all be affected by poor sleep. “But which cognitive domains are associated with poor sleep quality in people with MS is unknown,” said Dr. Siengsukon.
In the first study, 40 people (36 females) with MS (mainly relapsing-remitting MS) were analyzed through a battery of established tests of sleep quality, cognitive function, physical function, depression, anxiety, and quality of life. The subjects had a disease duration of about 12 years. All were ambulatory without the need of assistance, and none had sleep apnea.
About 68% of the subjects were considered poor sleepers with the remainder being good sleepers. They were comparable in age, sex, type of MS, disease duration, and cognitive impairment.
Compared with good sleepers, poor sleepers were significantly impaired in visuospatial memory and questionnaire-assessed physical function, were more fatigued, were more prone to be anxious and depressed, and had a worse quality of life. Independent factors of poor sleep quality included state and trait anxiety (P = .003 and .02, respectively).
“Evidence demonstrates that sleep consolidates memory. Therefore, poor sleep may selectively impair memory while not impacting other cognitive domains,” said Dr. Siengsukon.
In the second study, the influence of supervised, moderate exercise and home exercise on sleep quality was assessed in 22 other MS patients. Most had relapsing-remitting MS. The inclusion and exclusion criteria were similar to those for the first study, with additional exclusion criteria concerning cardiovascular risk of exercise.
The supervised stretching and exercise program for 12 subjects was done at a social center and utilized recumbent exercise machines, with the home-based program for 10 subjects consisting of stretching and outdoor walking. Both exercise programs were done three times weekly for 12 weeks.
Both exercise programs were beneficial in improving sleep, with the moderate-intensity program being relatively more effective than home-based exercise in two measurement scales of sleep. The greater benefit of moderate exercise might reflect the mode of exercise, with subjects feeling safer and more relaxed using a recumbent exerciser, Dr. Siengsukon said. Offering the exercise in a social setting might have been another plus.
“The results suggest that moderate-intensity exercise may improve cardiovascular fitness in people with MS. While both groups experienced moderate to large effects on sleep quality, the mechanism for improvement in sleep quality remains to be determined, as the improvement was not related to change in cardiorespiratory fitness,” said Dr. Siengsukon.
A link between treadmill exercise and transient cognitive improvement has been reported.
The studies were supported by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
AT THE CMSC ANNUAL MEETING
Key clinical point: Moderate-intensity exercise may benefit MS patients in terms of improved sleep and perhaps improved cognitive and physical function.
Major finding: Exercise, especially a structured regimen of moderate exercise, improves sleep, and better-quality sleep improves visuospatial cognition and physical functioning in MS patients.
Data source: Two small exercise-intervention studies from the same research team.
Disclosures: Funded by the National Institutes of Health and the National Multiple Sclerosis Society. Dr. Siengsukon disclosed grant support from the National Multiple Sclerosis Society.
Nonbenzodiazepines reduce time to extubation, compared with benzodiazepines
The nonbenzodiazepines propofol and dexmedetomidine reduce the time to extubation, compared with benzodiazepines, suggest results of an observational study published in Chest.
“This study found that sedatives vary in their associations with [ventilator-associated events] and time to extubation but not in their associations with time to hospital discharge or mortality. Both propofol and dexmedetomidine were associated with less time to extubation, compared with benzodiazepines,” wrote Dr. Michael Klompas of the department of population medicine at Harvard Medical School and Harvard Pilgrim Health Care Institute, both in Boston, and colleagues (Chest. 2016 Jun;149[6]:1373-9).
Current sedation guidelines for mechanical ventilation recommend using nonbenzodiazepines to lightly sedate patients, whenever possible.
Compared with the use of benzodiazepines, the uses of propofol and dexmedetomidine were associated with shorter times to extubation with hazard ratios of propofol vs. benzodiazepines and dexmedetomidine vs. benzodiazepines of 1.4 (P less than .0001) and 2.3 (P less than .0001), respectively. In the relatively few cases involving uses of dexmedetomidine that were available, this sedative was also associated with shorter time to extubation, compared with propofol (HR, 1.7; P less than .0001).
Uses of benzodiazepines and propofol were associated with increased risk for ventilator-associated events (VAEs), compared with regimens not involving them; for benzodiazepine use, the HR was 1.4 (P = .002) and for propofol, the HR was 1.3 (P = .003). Dexmedetomidine use, in contrast, was not associated with increased risk for VAEs (P = .92).
Regarding hazards for hospital discharges and hospital deaths, using each sedative or sedative class studied had similar outcomes.
The observational study involved 9,603 retrospectively identified mechanical ventilations. All consecutively occurring invasive mechanical ventilations lasting 3 days or longer in Boston’s Brigham and Women’s Hospital between July 1, 2006 and December 31, 2013 were studied. The researchers evaluated the impact that daily use of propofol, dexmedetomidine, and benzodiazepines have on VAEs, time to extubation, time to hospital discharge, and death in a large cohort of patients.
This study’s findings were similar to those of prior randomized controlled trials, especially concerning the time to extubation, the researchers said. “The large number of episodes of mechanical ventilation in our trial dataset, however, allowed us to extend conceivable but underpowered signals from randomized controlled trials.”
A limitation of this study is that it was a single-center retrospective analysis, which may have caused some of its findings to be attributable to “residual confounding and/or idiosyncratic local practice patterns.” Other limitations include the lack of measurements of patients’ total doses or adjusted doses per kilogram of body weight, a possible overtraining of the analysis model used to adjust for severity of illness, and a relatively low number of patients treated with dexmedetomidine, with most of such patients undergoing cardiac surgery.
Funding was provided by the Centers for Disease Control and Prevention. Dr. Klompas and the other researchers had no disclosures.
While sedatives are the most widely used pharmacologic compounds in the critical care of patients, data on the real-world patterns of sedative use are lacking,
Klompas et al. are to be commended for conducting an observational trial that addressed the real-world patterns of sedative use. “Their data speak to what many clinicians believe to be their clinical sedative administration experience.”
This is an important study that begins to address a basic pharmacologic issue. The researchers’ observations of the effects of the two nonbenzodiazepines (dexmedetomidine and propofol) and benzodiazepines on the patients studied will help to clarify whether such effects can be attributed to the specific drug used or the sedative effect that a drug had on a patient.
The study was limited by the relatively low number of patients who received dexmedetomidine. This limitation, which might have suggested a selection bias, made the conclusions less robust.
Dr. Yoanna Skrobik is from the faculty of medicine, department of medicine at the McGill University Health Centre, Montreal. She reported having no relevant financial disclosures. These remarks are adapted from an accompanying editorial (Chest. 2016 Jun;149[6]:1355-6).
While sedatives are the most widely used pharmacologic compounds in the critical care of patients, data on the real-world patterns of sedative use are lacking,
Klompas et al. are to be commended for conducting an observational trial that addressed the real-world patterns of sedative use. “Their data speak to what many clinicians believe to be their clinical sedative administration experience.”
This is an important study that begins to address a basic pharmacologic issue. The researchers’ observations of the effects of the two nonbenzodiazepines (dexmedetomidine and propofol) and benzodiazepines on the patients studied will help to clarify whether such effects can be attributed to the specific drug used or the sedative effect that a drug had on a patient.
The study was limited by the relatively low number of patients who received dexmedetomidine. This limitation, which might have suggested a selection bias, made the conclusions less robust.
Dr. Yoanna Skrobik is from the faculty of medicine, department of medicine at the McGill University Health Centre, Montreal. She reported having no relevant financial disclosures. These remarks are adapted from an accompanying editorial (Chest. 2016 Jun;149[6]:1355-6).
While sedatives are the most widely used pharmacologic compounds in the critical care of patients, data on the real-world patterns of sedative use are lacking,
Klompas et al. are to be commended for conducting an observational trial that addressed the real-world patterns of sedative use. “Their data speak to what many clinicians believe to be their clinical sedative administration experience.”
This is an important study that begins to address a basic pharmacologic issue. The researchers’ observations of the effects of the two nonbenzodiazepines (dexmedetomidine and propofol) and benzodiazepines on the patients studied will help to clarify whether such effects can be attributed to the specific drug used or the sedative effect that a drug had on a patient.
The study was limited by the relatively low number of patients who received dexmedetomidine. This limitation, which might have suggested a selection bias, made the conclusions less robust.
Dr. Yoanna Skrobik is from the faculty of medicine, department of medicine at the McGill University Health Centre, Montreal. She reported having no relevant financial disclosures. These remarks are adapted from an accompanying editorial (Chest. 2016 Jun;149[6]:1355-6).
The nonbenzodiazepines propofol and dexmedetomidine reduce the time to extubation, compared with benzodiazepines, suggest results of an observational study published in Chest.
“This study found that sedatives vary in their associations with [ventilator-associated events] and time to extubation but not in their associations with time to hospital discharge or mortality. Both propofol and dexmedetomidine were associated with less time to extubation, compared with benzodiazepines,” wrote Dr. Michael Klompas of the department of population medicine at Harvard Medical School and Harvard Pilgrim Health Care Institute, both in Boston, and colleagues (Chest. 2016 Jun;149[6]:1373-9).
Current sedation guidelines for mechanical ventilation recommend using nonbenzodiazepines to lightly sedate patients, whenever possible.
Compared with the use of benzodiazepines, the uses of propofol and dexmedetomidine were associated with shorter times to extubation with hazard ratios of propofol vs. benzodiazepines and dexmedetomidine vs. benzodiazepines of 1.4 (P less than .0001) and 2.3 (P less than .0001), respectively. In the relatively few cases involving uses of dexmedetomidine that were available, this sedative was also associated with shorter time to extubation, compared with propofol (HR, 1.7; P less than .0001).
Uses of benzodiazepines and propofol were associated with increased risk for ventilator-associated events (VAEs), compared with regimens not involving them; for benzodiazepine use, the HR was 1.4 (P = .002) and for propofol, the HR was 1.3 (P = .003). Dexmedetomidine use, in contrast, was not associated with increased risk for VAEs (P = .92).
Regarding hazards for hospital discharges and hospital deaths, using each sedative or sedative class studied had similar outcomes.
The observational study involved 9,603 retrospectively identified mechanical ventilations. All consecutively occurring invasive mechanical ventilations lasting 3 days or longer in Boston’s Brigham and Women’s Hospital between July 1, 2006 and December 31, 2013 were studied. The researchers evaluated the impact that daily use of propofol, dexmedetomidine, and benzodiazepines have on VAEs, time to extubation, time to hospital discharge, and death in a large cohort of patients.
This study’s findings were similar to those of prior randomized controlled trials, especially concerning the time to extubation, the researchers said. “The large number of episodes of mechanical ventilation in our trial dataset, however, allowed us to extend conceivable but underpowered signals from randomized controlled trials.”
A limitation of this study is that it was a single-center retrospective analysis, which may have caused some of its findings to be attributable to “residual confounding and/or idiosyncratic local practice patterns.” Other limitations include the lack of measurements of patients’ total doses or adjusted doses per kilogram of body weight, a possible overtraining of the analysis model used to adjust for severity of illness, and a relatively low number of patients treated with dexmedetomidine, with most of such patients undergoing cardiac surgery.
Funding was provided by the Centers for Disease Control and Prevention. Dr. Klompas and the other researchers had no disclosures.
The nonbenzodiazepines propofol and dexmedetomidine reduce the time to extubation, compared with benzodiazepines, suggest results of an observational study published in Chest.
“This study found that sedatives vary in their associations with [ventilator-associated events] and time to extubation but not in their associations with time to hospital discharge or mortality. Both propofol and dexmedetomidine were associated with less time to extubation, compared with benzodiazepines,” wrote Dr. Michael Klompas of the department of population medicine at Harvard Medical School and Harvard Pilgrim Health Care Institute, both in Boston, and colleagues (Chest. 2016 Jun;149[6]:1373-9).
Current sedation guidelines for mechanical ventilation recommend using nonbenzodiazepines to lightly sedate patients, whenever possible.
Compared with the use of benzodiazepines, the uses of propofol and dexmedetomidine were associated with shorter times to extubation with hazard ratios of propofol vs. benzodiazepines and dexmedetomidine vs. benzodiazepines of 1.4 (P less than .0001) and 2.3 (P less than .0001), respectively. In the relatively few cases involving uses of dexmedetomidine that were available, this sedative was also associated with shorter time to extubation, compared with propofol (HR, 1.7; P less than .0001).
Uses of benzodiazepines and propofol were associated with increased risk for ventilator-associated events (VAEs), compared with regimens not involving them; for benzodiazepine use, the HR was 1.4 (P = .002) and for propofol, the HR was 1.3 (P = .003). Dexmedetomidine use, in contrast, was not associated with increased risk for VAEs (P = .92).
Regarding hazards for hospital discharges and hospital deaths, using each sedative or sedative class studied had similar outcomes.
The observational study involved 9,603 retrospectively identified mechanical ventilations. All consecutively occurring invasive mechanical ventilations lasting 3 days or longer in Boston’s Brigham and Women’s Hospital between July 1, 2006 and December 31, 2013 were studied. The researchers evaluated the impact that daily use of propofol, dexmedetomidine, and benzodiazepines have on VAEs, time to extubation, time to hospital discharge, and death in a large cohort of patients.
This study’s findings were similar to those of prior randomized controlled trials, especially concerning the time to extubation, the researchers said. “The large number of episodes of mechanical ventilation in our trial dataset, however, allowed us to extend conceivable but underpowered signals from randomized controlled trials.”
A limitation of this study is that it was a single-center retrospective analysis, which may have caused some of its findings to be attributable to “residual confounding and/or idiosyncratic local practice patterns.” Other limitations include the lack of measurements of patients’ total doses or adjusted doses per kilogram of body weight, a possible overtraining of the analysis model used to adjust for severity of illness, and a relatively low number of patients treated with dexmedetomidine, with most of such patients undergoing cardiac surgery.
Funding was provided by the Centers for Disease Control and Prevention. Dr. Klompas and the other researchers had no disclosures.
FROM CHEST
Key clinical point: Dexmedetomidine and propofol reduce the time to extubation, compared with benzodiazepines.
Major finding: Compared with the use of benzodiazepines, the uses of propofol and dexmedetomidine were associated with shorter times to extubation with hazard ratios of propofol vs. benzodiazepines and dexmedetomidine vs. benzodiazepines of 1.4 and 2.3, respectively.
Data source: A observational study of 9,603 consecutive episodes of mechanical ventilation lasting 3 days or longer at a large medical center.
Disclosures: Funding for the study came from the Centers for Disease Control and Prevention. Dr. Klompas and his coauthors had no disclosures.