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Vedolizumab effective at treating UC in wide range of patients
When treating patients for ulcerative colitis (UC), clinicians should consider using vedolizumab, because the drug has been found to be both safe and highly effective in patients who have never received tumor necrosis factor (TNF)–antagonist treatment and those who have but did not benefit from it, according to a study published in the February issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2016.08.044).
“Approximately 50% of patients with UC do not respond to induction therapy with TNF antagonists or lose response over time such that after 1 year of treatment, clinical remission is observed in only 17%-34% of patients,” explained the authors of the report, led by Brian G. Feagan, MD, of the University of Western Ontario in London. “Furthermore, the risk of serious infection (with immunosuppressants in general, and TNF antagonists specifically) is an important concern [so] alternative approaches to treatment are needed.”
For this study, Dr. Feagan and his colleagues turned to the GEMINI 1 trial, which evaluated vedolizumab in patients with moderate and severe UC via a multicenter, phase III, randomized, placebo-controlled trial. This study produced data on 374 subjects who had been randomized into cohorts receiving either vedolizumab intravenously or a placebo. However, this number was deemed too low, so a further 521 patients were enrolled for an open-label study and randomized in the same 3:2 ratio as the previous study. The former study was called Cohort 1 and the latter called Cohort 2.
“Eligible patients had UC for [at least] 6 months before enrollment, MCS [Mayo Clinic scores for disease activity] from 6 to 12, and endoscopic subscores of [at least] 2 within 7 days before the first dose of study drug, and evidence of disease extending [at least] 15 cm proximal to the rectum,” the authors explained.
Vedolizumab was administered at baseline, with follow-up evaluations at 2, 4, and 6 weeks. Subjects who experienced a clinical response – defined as an MCS reduction of at least 3 points and 30%, along with at least a 1-point reduction in rectal bleeding and an absolute rectal bleeding subscore of either 0 or 1 – were re-randomized into cohorts that received the drug every 4 weeks or every 8 weeks, for a period of up to 46 weeks. The total length of the study was, therefore, 52 weeks; for patients that were re-randomized, follow-up evaluations took place every 4 weeks.
A total of 464 patients who were enrolled and completed the study were naive to TNF antagonists, while 367 had previously been treated with TNF antagonists unsuccessfully. At 6-week follow-up, 53.1% of naive subjects receiving vedolizumab had achieved clinical response, versus 26.3% of naive subjects on placebo (absolute difference, 26.4%; 95% confidence interval, 12.4-40.4). Similarly, those with previous TNF antagonist exposure who were given vedolizumab had a 39.0% clinical response rate, versus 20.6% of those on placebo (AD, 18.1%; 95% CI, 2.8-33.5).
At week 52, naive subjects on vedolizumab continued to have far higher rates of clinical response than did those on placebo, with 46.9% and 19.0%, respectively (AD, 28.0%; 95% CI, 14.9-41.1). For those with previous TNF antagonist exposure, the disparity between vedolizumab and placebo was similarly profound: 36.1% versus 5.3%, respectively (AD, 29.5%; 95% CI, 12.8-46.1).
Adverse event rates between naive and previously exposed patients were not significantly different, according to the findings. In naive patients, 74% of those on vedolizumab experienced an adverse event, and 9% experienced a serious adverse event. For those on placebo, those rates were 75% and 16%, respectively. For patients who had previously been on a TNF antagonist, subjects on vedolizumab had an 88% rate of adverse events and a 17% rate of serious adverse events, compared with 84% and 11%, respectively, for those on placebo.
“It is notable that, in maintenance, the absolute remission rates were substantially lower in the TNF failure population for both vedolizumab-treated and placebo-treated patients,” the investigators noted, positing that “The relatively low placebo response rate in the TNF-failure group could be attributed to the presence of a greater proportion of patients with more refractory disease and poor prognostic factors, such as pancolitis and long disease duration.”
The study was funded by Millennium Pharmaceuticals. Dr. Feagan disclosed serving as a consultant and receiving financial support for research from Millennium and other companies. No other coauthors reported relevant financial disclosures.
When treating patients for ulcerative colitis (UC), clinicians should consider using vedolizumab, because the drug has been found to be both safe and highly effective in patients who have never received tumor necrosis factor (TNF)–antagonist treatment and those who have but did not benefit from it, according to a study published in the February issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2016.08.044).
“Approximately 50% of patients with UC do not respond to induction therapy with TNF antagonists or lose response over time such that after 1 year of treatment, clinical remission is observed in only 17%-34% of patients,” explained the authors of the report, led by Brian G. Feagan, MD, of the University of Western Ontario in London. “Furthermore, the risk of serious infection (with immunosuppressants in general, and TNF antagonists specifically) is an important concern [so] alternative approaches to treatment are needed.”
For this study, Dr. Feagan and his colleagues turned to the GEMINI 1 trial, which evaluated vedolizumab in patients with moderate and severe UC via a multicenter, phase III, randomized, placebo-controlled trial. This study produced data on 374 subjects who had been randomized into cohorts receiving either vedolizumab intravenously or a placebo. However, this number was deemed too low, so a further 521 patients were enrolled for an open-label study and randomized in the same 3:2 ratio as the previous study. The former study was called Cohort 1 and the latter called Cohort 2.
“Eligible patients had UC for [at least] 6 months before enrollment, MCS [Mayo Clinic scores for disease activity] from 6 to 12, and endoscopic subscores of [at least] 2 within 7 days before the first dose of study drug, and evidence of disease extending [at least] 15 cm proximal to the rectum,” the authors explained.
Vedolizumab was administered at baseline, with follow-up evaluations at 2, 4, and 6 weeks. Subjects who experienced a clinical response – defined as an MCS reduction of at least 3 points and 30%, along with at least a 1-point reduction in rectal bleeding and an absolute rectal bleeding subscore of either 0 or 1 – were re-randomized into cohorts that received the drug every 4 weeks or every 8 weeks, for a period of up to 46 weeks. The total length of the study was, therefore, 52 weeks; for patients that were re-randomized, follow-up evaluations took place every 4 weeks.
A total of 464 patients who were enrolled and completed the study were naive to TNF antagonists, while 367 had previously been treated with TNF antagonists unsuccessfully. At 6-week follow-up, 53.1% of naive subjects receiving vedolizumab had achieved clinical response, versus 26.3% of naive subjects on placebo (absolute difference, 26.4%; 95% confidence interval, 12.4-40.4). Similarly, those with previous TNF antagonist exposure who were given vedolizumab had a 39.0% clinical response rate, versus 20.6% of those on placebo (AD, 18.1%; 95% CI, 2.8-33.5).
At week 52, naive subjects on vedolizumab continued to have far higher rates of clinical response than did those on placebo, with 46.9% and 19.0%, respectively (AD, 28.0%; 95% CI, 14.9-41.1). For those with previous TNF antagonist exposure, the disparity between vedolizumab and placebo was similarly profound: 36.1% versus 5.3%, respectively (AD, 29.5%; 95% CI, 12.8-46.1).
Adverse event rates between naive and previously exposed patients were not significantly different, according to the findings. In naive patients, 74% of those on vedolizumab experienced an adverse event, and 9% experienced a serious adverse event. For those on placebo, those rates were 75% and 16%, respectively. For patients who had previously been on a TNF antagonist, subjects on vedolizumab had an 88% rate of adverse events and a 17% rate of serious adverse events, compared with 84% and 11%, respectively, for those on placebo.
“It is notable that, in maintenance, the absolute remission rates were substantially lower in the TNF failure population for both vedolizumab-treated and placebo-treated patients,” the investigators noted, positing that “The relatively low placebo response rate in the TNF-failure group could be attributed to the presence of a greater proportion of patients with more refractory disease and poor prognostic factors, such as pancolitis and long disease duration.”
The study was funded by Millennium Pharmaceuticals. Dr. Feagan disclosed serving as a consultant and receiving financial support for research from Millennium and other companies. No other coauthors reported relevant financial disclosures.
When treating patients for ulcerative colitis (UC), clinicians should consider using vedolizumab, because the drug has been found to be both safe and highly effective in patients who have never received tumor necrosis factor (TNF)–antagonist treatment and those who have but did not benefit from it, according to a study published in the February issue of Clinical Gastroenterology and Hepatology (doi: 10.1016/j.cgh.2016.08.044).
“Approximately 50% of patients with UC do not respond to induction therapy with TNF antagonists or lose response over time such that after 1 year of treatment, clinical remission is observed in only 17%-34% of patients,” explained the authors of the report, led by Brian G. Feagan, MD, of the University of Western Ontario in London. “Furthermore, the risk of serious infection (with immunosuppressants in general, and TNF antagonists specifically) is an important concern [so] alternative approaches to treatment are needed.”
For this study, Dr. Feagan and his colleagues turned to the GEMINI 1 trial, which evaluated vedolizumab in patients with moderate and severe UC via a multicenter, phase III, randomized, placebo-controlled trial. This study produced data on 374 subjects who had been randomized into cohorts receiving either vedolizumab intravenously or a placebo. However, this number was deemed too low, so a further 521 patients were enrolled for an open-label study and randomized in the same 3:2 ratio as the previous study. The former study was called Cohort 1 and the latter called Cohort 2.
“Eligible patients had UC for [at least] 6 months before enrollment, MCS [Mayo Clinic scores for disease activity] from 6 to 12, and endoscopic subscores of [at least] 2 within 7 days before the first dose of study drug, and evidence of disease extending [at least] 15 cm proximal to the rectum,” the authors explained.
Vedolizumab was administered at baseline, with follow-up evaluations at 2, 4, and 6 weeks. Subjects who experienced a clinical response – defined as an MCS reduction of at least 3 points and 30%, along with at least a 1-point reduction in rectal bleeding and an absolute rectal bleeding subscore of either 0 or 1 – were re-randomized into cohorts that received the drug every 4 weeks or every 8 weeks, for a period of up to 46 weeks. The total length of the study was, therefore, 52 weeks; for patients that were re-randomized, follow-up evaluations took place every 4 weeks.
A total of 464 patients who were enrolled and completed the study were naive to TNF antagonists, while 367 had previously been treated with TNF antagonists unsuccessfully. At 6-week follow-up, 53.1% of naive subjects receiving vedolizumab had achieved clinical response, versus 26.3% of naive subjects on placebo (absolute difference, 26.4%; 95% confidence interval, 12.4-40.4). Similarly, those with previous TNF antagonist exposure who were given vedolizumab had a 39.0% clinical response rate, versus 20.6% of those on placebo (AD, 18.1%; 95% CI, 2.8-33.5).
At week 52, naive subjects on vedolizumab continued to have far higher rates of clinical response than did those on placebo, with 46.9% and 19.0%, respectively (AD, 28.0%; 95% CI, 14.9-41.1). For those with previous TNF antagonist exposure, the disparity between vedolizumab and placebo was similarly profound: 36.1% versus 5.3%, respectively (AD, 29.5%; 95% CI, 12.8-46.1).
Adverse event rates between naive and previously exposed patients were not significantly different, according to the findings. In naive patients, 74% of those on vedolizumab experienced an adverse event, and 9% experienced a serious adverse event. For those on placebo, those rates were 75% and 16%, respectively. For patients who had previously been on a TNF antagonist, subjects on vedolizumab had an 88% rate of adverse events and a 17% rate of serious adverse events, compared with 84% and 11%, respectively, for those on placebo.
“It is notable that, in maintenance, the absolute remission rates were substantially lower in the TNF failure population for both vedolizumab-treated and placebo-treated patients,” the investigators noted, positing that “The relatively low placebo response rate in the TNF-failure group could be attributed to the presence of a greater proportion of patients with more refractory disease and poor prognostic factors, such as pancolitis and long disease duration.”
The study was funded by Millennium Pharmaceuticals. Dr. Feagan disclosed serving as a consultant and receiving financial support for research from Millennium and other companies. No other coauthors reported relevant financial disclosures.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Key clinical point:
Major finding: Response to vedolizumab in patients new to TNF antagonists was 53.1%, versus 26.3% in the placebo cohort; patients who failed TNF antagonist treatment previously had a 39.0% response rate to vedolizumab, versus 20.6% on placebo.
Data source: Post-hoc cohort analysis of 831 UC patients from the GEMINI 1 study population.
Disclosures: Funding provided by Millennium Pharmaceuticals. Dr. Feagan disclosed potential conflicts of interest.
Endoscopy during pregnancy increases risk of preterm, SGA birth
Women who undergo an endoscopy during pregnancy are increasing the chances that their baby will be born preterm, or be small for gestational age (SGA), according to research published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.016).
“Research in pregnancy outcome in women undergoing endoscopy during pregnancy is scarce,” wrote the authors, led by Jonas F. Ludvigsson, MD, of the Karolinska Institutet in Stockholm, adding that there are nine studies with original data on a total of 379 pregnant women undergoing endoscopy; two of these studies examined pregnancy outcome in upper endoscopy (n = 143), two examined pregnancy outcome in sigmoidoscopy or colonoscopy (n = 116), and four examined pregnancy outcome in endoscopic retrograde cholangiopancreatography (n = 120).
Additionally, the authors noted that, to their knowledge, there are no studies that offer data on the relative risk of endoscopy during pregnancy, and none that followed up subjects after birth. Of the few studies that do exist, a handful conclude that endoscopy during pregnancy is actually safe, but do not include data on stillbirths and neonatal deaths that did not occur immediately after patients underwent endoscopy, which could compromise that data.
To address the lack of reliable research on the effect of endoscopy on pregnancy, Dr. Ludvigsson and his coinvestigators launched a nationwide study of pregnancies in Sweden that occurred between 1992 and 2011, all of which were registered in the Swedish Medical Birth Registry and the Swedish Patient Registry. The databases revealed 2,025 upper endoscopies, 1,109 lower endoscopies, and 58 endoscopic retrograde cholangiopancreatographies, for a total of 3,052 pregnancies exposed to endoscopy over that time period.
The primary endpoint of the study was the frequency of preterm birth and stillbirth in this population. To measure this, the investigators used adjusted relative risk (ARR), calculated via Poisson regression by using data on 1,589,173 pregnancies that were not exposed to endoscopy as reference.
“Stillbirth is recorded from 22 completed gestational weeks since mid-2008, and before that from gestational week 28. Gestational age was determined using ultrasound, and when ultrasound data were missing, we used the first day of the last menstrual period for pregnancy start,” the authors wrote.
The results showed that mothers who had any kind of endoscopy during pregnancy were more likely to experience a preterm birth or give birth to a baby who was SGA, with the ARR being 1.54 (95% confidence interval, 1.36-1.75) and 1.30 (95% CI, 1.07-1.57), respectively. However, the risk of other adverse effects, such as stillbirth or congenital malformation, was not significant: Stillbirth ARR was 1.45 (95% CI, 0.87-2.40) and congenital malformation ARR was 1.00 (95% CI, 0.83-1.20).
Women who were exposed to endoscopy during pregnancy were more likely to have a preterm birth, compared with women who had endoscopy 1 year before or after pregnancy, but were not more highly predisposed to SGA, stillbirth, or congenital malformations. Additionally, when data on multiple pregnancies carried by the same mother were compared, no correlation was found between endoscopy and gestational age or birth weight, if the mother was exposed to endoscopy during only one of the pregnancies.
“Earlier recommendations suggest that endoscopy should only be performed during pregnancy if there are strong indications, and if so, not during the second trimester, [but] our study shows that endoscopy is unlikely to have a more than marginal influence on pregnancy outcome independently of trimester,” the authors concluded. “Neither does it seem that sigmoidoscopy is preferable to a full colonoscopy in the pregnant woman.”
Regarding the latter conclusion, the authors clarified that “it is possible that in women with particularly severe gastrointestinal disease where endoscopy is inevitable, the physician will prefer a sigmoidoscopy rather than a full colonoscopy, and under such circumstances the sigmoidoscopy will signal a more severe disease.”
The investigators also noted that their study had several limitations, including not knowing the length of time each endoscopy took, the sedatives and bowel preparations that were used, the patient’s position during the procedure, and the indication that prompted the endoscopy in the first place.
The study was funded by grants from the Swedish Society of Medicine and the Stockholm County Council, and the Swedish Research Council. Dr. Ludvigsson and his coauthors did not report any relevant financial disclosures.
Women who undergo an endoscopy during pregnancy are increasing the chances that their baby will be born preterm, or be small for gestational age (SGA), according to research published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.016).
“Research in pregnancy outcome in women undergoing endoscopy during pregnancy is scarce,” wrote the authors, led by Jonas F. Ludvigsson, MD, of the Karolinska Institutet in Stockholm, adding that there are nine studies with original data on a total of 379 pregnant women undergoing endoscopy; two of these studies examined pregnancy outcome in upper endoscopy (n = 143), two examined pregnancy outcome in sigmoidoscopy or colonoscopy (n = 116), and four examined pregnancy outcome in endoscopic retrograde cholangiopancreatography (n = 120).
Additionally, the authors noted that, to their knowledge, there are no studies that offer data on the relative risk of endoscopy during pregnancy, and none that followed up subjects after birth. Of the few studies that do exist, a handful conclude that endoscopy during pregnancy is actually safe, but do not include data on stillbirths and neonatal deaths that did not occur immediately after patients underwent endoscopy, which could compromise that data.
To address the lack of reliable research on the effect of endoscopy on pregnancy, Dr. Ludvigsson and his coinvestigators launched a nationwide study of pregnancies in Sweden that occurred between 1992 and 2011, all of which were registered in the Swedish Medical Birth Registry and the Swedish Patient Registry. The databases revealed 2,025 upper endoscopies, 1,109 lower endoscopies, and 58 endoscopic retrograde cholangiopancreatographies, for a total of 3,052 pregnancies exposed to endoscopy over that time period.
The primary endpoint of the study was the frequency of preterm birth and stillbirth in this population. To measure this, the investigators used adjusted relative risk (ARR), calculated via Poisson regression by using data on 1,589,173 pregnancies that were not exposed to endoscopy as reference.
“Stillbirth is recorded from 22 completed gestational weeks since mid-2008, and before that from gestational week 28. Gestational age was determined using ultrasound, and when ultrasound data were missing, we used the first day of the last menstrual period for pregnancy start,” the authors wrote.
The results showed that mothers who had any kind of endoscopy during pregnancy were more likely to experience a preterm birth or give birth to a baby who was SGA, with the ARR being 1.54 (95% confidence interval, 1.36-1.75) and 1.30 (95% CI, 1.07-1.57), respectively. However, the risk of other adverse effects, such as stillbirth or congenital malformation, was not significant: Stillbirth ARR was 1.45 (95% CI, 0.87-2.40) and congenital malformation ARR was 1.00 (95% CI, 0.83-1.20).
Women who were exposed to endoscopy during pregnancy were more likely to have a preterm birth, compared with women who had endoscopy 1 year before or after pregnancy, but were not more highly predisposed to SGA, stillbirth, or congenital malformations. Additionally, when data on multiple pregnancies carried by the same mother were compared, no correlation was found between endoscopy and gestational age or birth weight, if the mother was exposed to endoscopy during only one of the pregnancies.
“Earlier recommendations suggest that endoscopy should only be performed during pregnancy if there are strong indications, and if so, not during the second trimester, [but] our study shows that endoscopy is unlikely to have a more than marginal influence on pregnancy outcome independently of trimester,” the authors concluded. “Neither does it seem that sigmoidoscopy is preferable to a full colonoscopy in the pregnant woman.”
Regarding the latter conclusion, the authors clarified that “it is possible that in women with particularly severe gastrointestinal disease where endoscopy is inevitable, the physician will prefer a sigmoidoscopy rather than a full colonoscopy, and under such circumstances the sigmoidoscopy will signal a more severe disease.”
The investigators also noted that their study had several limitations, including not knowing the length of time each endoscopy took, the sedatives and bowel preparations that were used, the patient’s position during the procedure, and the indication that prompted the endoscopy in the first place.
The study was funded by grants from the Swedish Society of Medicine and the Stockholm County Council, and the Swedish Research Council. Dr. Ludvigsson and his coauthors did not report any relevant financial disclosures.
Women who undergo an endoscopy during pregnancy are increasing the chances that their baby will be born preterm, or be small for gestational age (SGA), according to research published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.016).
“Research in pregnancy outcome in women undergoing endoscopy during pregnancy is scarce,” wrote the authors, led by Jonas F. Ludvigsson, MD, of the Karolinska Institutet in Stockholm, adding that there are nine studies with original data on a total of 379 pregnant women undergoing endoscopy; two of these studies examined pregnancy outcome in upper endoscopy (n = 143), two examined pregnancy outcome in sigmoidoscopy or colonoscopy (n = 116), and four examined pregnancy outcome in endoscopic retrograde cholangiopancreatography (n = 120).
Additionally, the authors noted that, to their knowledge, there are no studies that offer data on the relative risk of endoscopy during pregnancy, and none that followed up subjects after birth. Of the few studies that do exist, a handful conclude that endoscopy during pregnancy is actually safe, but do not include data on stillbirths and neonatal deaths that did not occur immediately after patients underwent endoscopy, which could compromise that data.
To address the lack of reliable research on the effect of endoscopy on pregnancy, Dr. Ludvigsson and his coinvestigators launched a nationwide study of pregnancies in Sweden that occurred between 1992 and 2011, all of which were registered in the Swedish Medical Birth Registry and the Swedish Patient Registry. The databases revealed 2,025 upper endoscopies, 1,109 lower endoscopies, and 58 endoscopic retrograde cholangiopancreatographies, for a total of 3,052 pregnancies exposed to endoscopy over that time period.
The primary endpoint of the study was the frequency of preterm birth and stillbirth in this population. To measure this, the investigators used adjusted relative risk (ARR), calculated via Poisson regression by using data on 1,589,173 pregnancies that were not exposed to endoscopy as reference.
“Stillbirth is recorded from 22 completed gestational weeks since mid-2008, and before that from gestational week 28. Gestational age was determined using ultrasound, and when ultrasound data were missing, we used the first day of the last menstrual period for pregnancy start,” the authors wrote.
The results showed that mothers who had any kind of endoscopy during pregnancy were more likely to experience a preterm birth or give birth to a baby who was SGA, with the ARR being 1.54 (95% confidence interval, 1.36-1.75) and 1.30 (95% CI, 1.07-1.57), respectively. However, the risk of other adverse effects, such as stillbirth or congenital malformation, was not significant: Stillbirth ARR was 1.45 (95% CI, 0.87-2.40) and congenital malformation ARR was 1.00 (95% CI, 0.83-1.20).
Women who were exposed to endoscopy during pregnancy were more likely to have a preterm birth, compared with women who had endoscopy 1 year before or after pregnancy, but were not more highly predisposed to SGA, stillbirth, or congenital malformations. Additionally, when data on multiple pregnancies carried by the same mother were compared, no correlation was found between endoscopy and gestational age or birth weight, if the mother was exposed to endoscopy during only one of the pregnancies.
“Earlier recommendations suggest that endoscopy should only be performed during pregnancy if there are strong indications, and if so, not during the second trimester, [but] our study shows that endoscopy is unlikely to have a more than marginal influence on pregnancy outcome independently of trimester,” the authors concluded. “Neither does it seem that sigmoidoscopy is preferable to a full colonoscopy in the pregnant woman.”
Regarding the latter conclusion, the authors clarified that “it is possible that in women with particularly severe gastrointestinal disease where endoscopy is inevitable, the physician will prefer a sigmoidoscopy rather than a full colonoscopy, and under such circumstances the sigmoidoscopy will signal a more severe disease.”
The investigators also noted that their study had several limitations, including not knowing the length of time each endoscopy took, the sedatives and bowel preparations that were used, the patient’s position during the procedure, and the indication that prompted the endoscopy in the first place.
The study was funded by grants from the Swedish Society of Medicine and the Stockholm County Council, and the Swedish Research Council. Dr. Ludvigsson and his coauthors did not report any relevant financial disclosures.
FROM GASTROENTEROLOGY
Key clinical point:
Major finding: The adjusted relative risk of preterm birth was 1.54 (95% CI, 1.36-1.75) and was 1.30 (95% CI, 1.07-1.57) for SGA.
Data source: A population-based cohort study of 3,052 pregnancies in Sweden exposed to endoscopy from 1992 through 2011.
Disclosures: The study was funded by the Swedish Society of Medicine and the Stockholm County Council, and the Swedish Research Council. The authors did not report any relevant financial disclosures.
VIDEO: Protein-rich diet can help manage type 2 diabetes, NAFLD
Patients with type 2 diabetes should be put on diets rich in either animal or plant protein to reduce not only liver fat, but insulin resistance and hepatic necroinflammation markers as well, according to a study published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.007).
“High-protein diets have shown variable and sometimes even favorable effects on glucose metabolism and insulin sensitivity in people with type 2 diabetes and it is unclear which metabolic pathways are involved,” wrote the authors of the study, led by Mariya Markova, MD, of the German Institute of Human Nutrition Potsdam-Rehbrücke in Nuthetal, Germany.
SOURCE: American Gastroenterological Association
Obesity and insulin resistance have long been linked to liver fat, with excessive amounts of the latter causing nonalcoholic fatty liver disease (NAFLD), with a significant risk of nonalcoholic steatohepatitis (NASH) developing as well. Compounding this issue, at least in the United States, are widespread dietary and nutritional habits that promote consumption of animal protein, carbohydrates, and saturated fats. This “hypercaloric Western style diet,” as the authors call it, exacerbates the accumulation of fat deposits in the liver and complicates the health of patients across the country, regardless of weight.
“Remarkably, diets restricted in methionine were shown to prevent the development of insulin resistance and of the metabolic syndrome in animal models [so] the type of protein may elicit different metabolic responses depending on the amino acid composition,” Dr. Markova and her coinvestigators noted. “It is therefore hypothesized that high-plant-protein diets exert favorable effects on hepatic fat content and metabolic responses as compared to high intake of animal protein rich in BCAA [branched-chain amino acids] and methionine,” both of which can be found in suitably low levels via plant protein.
Dr. Markova and her team devised a prospective, randomized, open-label clinical trial involving 44 patients with type 2 diabetes and NAFLD, all of whom were recruited at the department of clinical nutrition of the German Institute of Human Nutrition Potsdam-Rehbrücke between June 2013 and March 2015. Subjects were randomized into one of two cohorts, each of which were assigned a diet rich in either animal protein (AP) or plant protein (PP) for a period of 6 weeks. Median body mass index in the AP cohort was 31.0 ± 0.8, and was 29.4 ± 1.0 in the PP cohort.
The AP cohort diet consisted mainly of meat and dairy products, while legumes constituted the bulk of the PP cohort diet. Both diets were isocaloric and had the same macronutrient makeup: 30% protein, 40% carbohydrates, and 30% fat. Seven subjects dropped out prior to completion of the study; of the 37 that remained all the way through – 19 in the AP cohort, 18 in the PP cohort – the age range was 49-78 years. Subjects maintained the same physical exercise regimens throughout the study that they had beforehand, and were asked not to alter them. Hemoglobin A1c levels ranged from 5.8% to 8.8% at baseline, and evaluations were carried out at fasting levels for each subject.
Patients in both cohorts saw significant decreases in intrahepatic fat content by the end of the trial period. Those in the AP cohort saw decreases of 48.0% (P = .0002), while those in the PP cohort saw a decrease of 35.7% (P = .001). Perhaps most importantly, the reductions in both cohorts were not correlated to body weight. In addition, levels of fibroblast growth factor 21 (FGF21), which has been shown to be a predictive marker of NAFLD, decreased by nearly 50% for both AP and PP cohorts (P less than .0002 for both).
“Despite the elevated intake and postprandial uptake of methionine and BCAA in the AP group, there was no indication of negative effects of these components,” the authors stated in the study. “The origin of protein – animal or plant – did not play a major role. Both high-protein diets unexpectedly induced strong reductions of FGF21, which was associated with metabolic improvements and the decrease of IHL.”
Despite these findings, however, the 6-week time span used here is not sufficient to determine just how viable this diet may be in the long term, according to the authors. Further studies will be needed, and will need to take place over longer periods of time, to “show the durability of the responses and eventual adverse effects of the diets.” Furthermore, different age groups must be examined to find out if the benefits observed by Dr. Markova and her coinvestigators were somehow related to the age of these subjects.
The study was funded by grants from German Federal Ministry of Food and Agriculture and German Center for Diabetes Research. Dr. Markova and her coauthors did not report any financial disclosures.
Human studies to assess the effects of isocaloric macronutrient substitution are fraught with difficulty. If one macronutrient is increased, what happens to the others? If you observe an effect, is it the phenomenon you were seeking due to the macronutrient you altered, or an epiphenomenon due to changes in the others?
Markova et al. attempted to study a 6-week “isocaloric” increase of animal vs. plant protein (from 17% to 30% of calories as protein). However, a decrease of percent fat from 41% to 30%, and a reduction in carbohydrate from 42% to 40% occurred commensurately. This brings up three concerns. First, despite the diet’s being “isocaloric,” weight and body mass index decreased by 2 kg and 0.8 kg/m2, respectively. Reductions in intrahepatic, visceral, and subcutaneous fat, and an increase in lean body mass were noted. So was the diet isocaloric? Protein reduces plasma ghrelin levels and is more satiating. Furthermore, metabolism of protein to ATP is inefficient compared to that of carbohydrate or fat. The authors say only that calories were “unrestricted.” These issues do not engender “isocaloric” confidence.
Lastly, the type of carbohydrate was not controlled for. Fructose is significantly more lipogenic than glucose. Yet they were lumped together as “carbohydrate,” and were uncontrolled. So what macronutrient really caused the reduction in liver fat? These methodological issues detract from the author’s message, and this study must be considered preliminary.
Robert H. Lustig, MD, MSL, is in the division of pediatric endocrinology, UCSF Benioff Children’s Hospital, San Francisco; member, UCSF Institute for Health Policy Studies. Dr. Lustig declared no conflicts of interest.
Human studies to assess the effects of isocaloric macronutrient substitution are fraught with difficulty. If one macronutrient is increased, what happens to the others? If you observe an effect, is it the phenomenon you were seeking due to the macronutrient you altered, or an epiphenomenon due to changes in the others?
Markova et al. attempted to study a 6-week “isocaloric” increase of animal vs. plant protein (from 17% to 30% of calories as protein). However, a decrease of percent fat from 41% to 30%, and a reduction in carbohydrate from 42% to 40% occurred commensurately. This brings up three concerns. First, despite the diet’s being “isocaloric,” weight and body mass index decreased by 2 kg and 0.8 kg/m2, respectively. Reductions in intrahepatic, visceral, and subcutaneous fat, and an increase in lean body mass were noted. So was the diet isocaloric? Protein reduces plasma ghrelin levels and is more satiating. Furthermore, metabolism of protein to ATP is inefficient compared to that of carbohydrate or fat. The authors say only that calories were “unrestricted.” These issues do not engender “isocaloric” confidence.
Lastly, the type of carbohydrate was not controlled for. Fructose is significantly more lipogenic than glucose. Yet they were lumped together as “carbohydrate,” and were uncontrolled. So what macronutrient really caused the reduction in liver fat? These methodological issues detract from the author’s message, and this study must be considered preliminary.
Robert H. Lustig, MD, MSL, is in the division of pediatric endocrinology, UCSF Benioff Children’s Hospital, San Francisco; member, UCSF Institute for Health Policy Studies. Dr. Lustig declared no conflicts of interest.
Human studies to assess the effects of isocaloric macronutrient substitution are fraught with difficulty. If one macronutrient is increased, what happens to the others? If you observe an effect, is it the phenomenon you were seeking due to the macronutrient you altered, or an epiphenomenon due to changes in the others?
Markova et al. attempted to study a 6-week “isocaloric” increase of animal vs. plant protein (from 17% to 30% of calories as protein). However, a decrease of percent fat from 41% to 30%, and a reduction in carbohydrate from 42% to 40% occurred commensurately. This brings up three concerns. First, despite the diet’s being “isocaloric,” weight and body mass index decreased by 2 kg and 0.8 kg/m2, respectively. Reductions in intrahepatic, visceral, and subcutaneous fat, and an increase in lean body mass were noted. So was the diet isocaloric? Protein reduces plasma ghrelin levels and is more satiating. Furthermore, metabolism of protein to ATP is inefficient compared to that of carbohydrate or fat. The authors say only that calories were “unrestricted.” These issues do not engender “isocaloric” confidence.
Lastly, the type of carbohydrate was not controlled for. Fructose is significantly more lipogenic than glucose. Yet they were lumped together as “carbohydrate,” and were uncontrolled. So what macronutrient really caused the reduction in liver fat? These methodological issues detract from the author’s message, and this study must be considered preliminary.
Robert H. Lustig, MD, MSL, is in the division of pediatric endocrinology, UCSF Benioff Children’s Hospital, San Francisco; member, UCSF Institute for Health Policy Studies. Dr. Lustig declared no conflicts of interest.
Patients with type 2 diabetes should be put on diets rich in either animal or plant protein to reduce not only liver fat, but insulin resistance and hepatic necroinflammation markers as well, according to a study published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.007).
“High-protein diets have shown variable and sometimes even favorable effects on glucose metabolism and insulin sensitivity in people with type 2 diabetes and it is unclear which metabolic pathways are involved,” wrote the authors of the study, led by Mariya Markova, MD, of the German Institute of Human Nutrition Potsdam-Rehbrücke in Nuthetal, Germany.
SOURCE: American Gastroenterological Association
Obesity and insulin resistance have long been linked to liver fat, with excessive amounts of the latter causing nonalcoholic fatty liver disease (NAFLD), with a significant risk of nonalcoholic steatohepatitis (NASH) developing as well. Compounding this issue, at least in the United States, are widespread dietary and nutritional habits that promote consumption of animal protein, carbohydrates, and saturated fats. This “hypercaloric Western style diet,” as the authors call it, exacerbates the accumulation of fat deposits in the liver and complicates the health of patients across the country, regardless of weight.
“Remarkably, diets restricted in methionine were shown to prevent the development of insulin resistance and of the metabolic syndrome in animal models [so] the type of protein may elicit different metabolic responses depending on the amino acid composition,” Dr. Markova and her coinvestigators noted. “It is therefore hypothesized that high-plant-protein diets exert favorable effects on hepatic fat content and metabolic responses as compared to high intake of animal protein rich in BCAA [branched-chain amino acids] and methionine,” both of which can be found in suitably low levels via plant protein.
Dr. Markova and her team devised a prospective, randomized, open-label clinical trial involving 44 patients with type 2 diabetes and NAFLD, all of whom were recruited at the department of clinical nutrition of the German Institute of Human Nutrition Potsdam-Rehbrücke between June 2013 and March 2015. Subjects were randomized into one of two cohorts, each of which were assigned a diet rich in either animal protein (AP) or plant protein (PP) for a period of 6 weeks. Median body mass index in the AP cohort was 31.0 ± 0.8, and was 29.4 ± 1.0 in the PP cohort.
The AP cohort diet consisted mainly of meat and dairy products, while legumes constituted the bulk of the PP cohort diet. Both diets were isocaloric and had the same macronutrient makeup: 30% protein, 40% carbohydrates, and 30% fat. Seven subjects dropped out prior to completion of the study; of the 37 that remained all the way through – 19 in the AP cohort, 18 in the PP cohort – the age range was 49-78 years. Subjects maintained the same physical exercise regimens throughout the study that they had beforehand, and were asked not to alter them. Hemoglobin A1c levels ranged from 5.8% to 8.8% at baseline, and evaluations were carried out at fasting levels for each subject.
Patients in both cohorts saw significant decreases in intrahepatic fat content by the end of the trial period. Those in the AP cohort saw decreases of 48.0% (P = .0002), while those in the PP cohort saw a decrease of 35.7% (P = .001). Perhaps most importantly, the reductions in both cohorts were not correlated to body weight. In addition, levels of fibroblast growth factor 21 (FGF21), which has been shown to be a predictive marker of NAFLD, decreased by nearly 50% for both AP and PP cohorts (P less than .0002 for both).
“Despite the elevated intake and postprandial uptake of methionine and BCAA in the AP group, there was no indication of negative effects of these components,” the authors stated in the study. “The origin of protein – animal or plant – did not play a major role. Both high-protein diets unexpectedly induced strong reductions of FGF21, which was associated with metabolic improvements and the decrease of IHL.”
Despite these findings, however, the 6-week time span used here is not sufficient to determine just how viable this diet may be in the long term, according to the authors. Further studies will be needed, and will need to take place over longer periods of time, to “show the durability of the responses and eventual adverse effects of the diets.” Furthermore, different age groups must be examined to find out if the benefits observed by Dr. Markova and her coinvestigators were somehow related to the age of these subjects.
The study was funded by grants from German Federal Ministry of Food and Agriculture and German Center for Diabetes Research. Dr. Markova and her coauthors did not report any financial disclosures.
Patients with type 2 diabetes should be put on diets rich in either animal or plant protein to reduce not only liver fat, but insulin resistance and hepatic necroinflammation markers as well, according to a study published in the February issue of Gastroenterology (doi: 10.1053/j.gastro.2016.10.007).
“High-protein diets have shown variable and sometimes even favorable effects on glucose metabolism and insulin sensitivity in people with type 2 diabetes and it is unclear which metabolic pathways are involved,” wrote the authors of the study, led by Mariya Markova, MD, of the German Institute of Human Nutrition Potsdam-Rehbrücke in Nuthetal, Germany.
SOURCE: American Gastroenterological Association
Obesity and insulin resistance have long been linked to liver fat, with excessive amounts of the latter causing nonalcoholic fatty liver disease (NAFLD), with a significant risk of nonalcoholic steatohepatitis (NASH) developing as well. Compounding this issue, at least in the United States, are widespread dietary and nutritional habits that promote consumption of animal protein, carbohydrates, and saturated fats. This “hypercaloric Western style diet,” as the authors call it, exacerbates the accumulation of fat deposits in the liver and complicates the health of patients across the country, regardless of weight.
“Remarkably, diets restricted in methionine were shown to prevent the development of insulin resistance and of the metabolic syndrome in animal models [so] the type of protein may elicit different metabolic responses depending on the amino acid composition,” Dr. Markova and her coinvestigators noted. “It is therefore hypothesized that high-plant-protein diets exert favorable effects on hepatic fat content and metabolic responses as compared to high intake of animal protein rich in BCAA [branched-chain amino acids] and methionine,” both of which can be found in suitably low levels via plant protein.
Dr. Markova and her team devised a prospective, randomized, open-label clinical trial involving 44 patients with type 2 diabetes and NAFLD, all of whom were recruited at the department of clinical nutrition of the German Institute of Human Nutrition Potsdam-Rehbrücke between June 2013 and March 2015. Subjects were randomized into one of two cohorts, each of which were assigned a diet rich in either animal protein (AP) or plant protein (PP) for a period of 6 weeks. Median body mass index in the AP cohort was 31.0 ± 0.8, and was 29.4 ± 1.0 in the PP cohort.
The AP cohort diet consisted mainly of meat and dairy products, while legumes constituted the bulk of the PP cohort diet. Both diets were isocaloric and had the same macronutrient makeup: 30% protein, 40% carbohydrates, and 30% fat. Seven subjects dropped out prior to completion of the study; of the 37 that remained all the way through – 19 in the AP cohort, 18 in the PP cohort – the age range was 49-78 years. Subjects maintained the same physical exercise regimens throughout the study that they had beforehand, and were asked not to alter them. Hemoglobin A1c levels ranged from 5.8% to 8.8% at baseline, and evaluations were carried out at fasting levels for each subject.
Patients in both cohorts saw significant decreases in intrahepatic fat content by the end of the trial period. Those in the AP cohort saw decreases of 48.0% (P = .0002), while those in the PP cohort saw a decrease of 35.7% (P = .001). Perhaps most importantly, the reductions in both cohorts were not correlated to body weight. In addition, levels of fibroblast growth factor 21 (FGF21), which has been shown to be a predictive marker of NAFLD, decreased by nearly 50% for both AP and PP cohorts (P less than .0002 for both).
“Despite the elevated intake and postprandial uptake of methionine and BCAA in the AP group, there was no indication of negative effects of these components,” the authors stated in the study. “The origin of protein – animal or plant – did not play a major role. Both high-protein diets unexpectedly induced strong reductions of FGF21, which was associated with metabolic improvements and the decrease of IHL.”
Despite these findings, however, the 6-week time span used here is not sufficient to determine just how viable this diet may be in the long term, according to the authors. Further studies will be needed, and will need to take place over longer periods of time, to “show the durability of the responses and eventual adverse effects of the diets.” Furthermore, different age groups must be examined to find out if the benefits observed by Dr. Markova and her coinvestigators were somehow related to the age of these subjects.
The study was funded by grants from German Federal Ministry of Food and Agriculture and German Center for Diabetes Research. Dr. Markova and her coauthors did not report any financial disclosures.
FROM GASTROENTEROLOGY
Key clinical point:
Major finding: Animal- and plant-protein diets reduced liver fat for type 2 diabetes patients by 36%-48% over the course of 6 months (P = .0002 and P = .001, respectively).
Data source: Prospective study of 37 type 2 diabetes patients from June 2013 to March 2015.
Disclosures: The German Federal Ministry of Food and Agriculture and German Center for Diabetes Research supported the study. The authors did not report any financial disclosures.
AGA Clinical Practice Update: Treatment for severe alcohol hepatitis challenging
Acute alcoholic hepatitis carries a high risk of mortality, yet only a minority of patients admitted to the hospital with the condition receive appropriate treatment, said the authors of an expert review.
Writing in the January 2017 issue of Clinical Gastroenterology and Hepatology, Mack C. Mitchell Jr., MD, of the University of Texas Southwestern Medical Center, Dallas, and Craig J. McClain, MD, of the University of Louisville (Ky.), described the challenges associated with treating acute alcoholic hepatitis and its consequences.
Acute alcohol hepatitis develops in heavy drinkers and presents with rapid onset of malaise, anorexia, tender hepatomegaly, and features of the systemic inflammatory response syndrome. Patients with alcoholic hepatitis also are at high risk of nutritional deficiency, infection, acute kidney injury, and multiorgan failure.
The two most widely used therapies are glucocorticoids – generally considered the standard of care for severe alcoholic hepatitis – and the phosphodiesterase inhibitor pentoxifylline (Clin Gastroenterol Hepatol. 2017. doi: 10.1016/j.cgh.2016.08.047).
“Although in its most severe form AH has a high short-term mortality rate if untreated, in 2011, only 28% of more than 1,600 patients admitted to U.S. hospitals were treated with glucocorticoids and 17% with pentoxifylline (PTX), suggesting a lack of widespread confidence in the two most frequently used therapies for AH,” the authors wrote.
Both drugs work by addressing the underlying inflammation that plays a key role in liver injury, but the evidence for both is mixed: A 2008 Cochrane systematic review of 15 trials concluded there was no benefit from glucocorticoids, largely because of substantial variability in bias across the trials, while two meta-analyses of pentoxifylline trials concluded that there were no differences in short-term mortality between those who received it and those who did not.
Some patients are unsuitable for glucocorticoids and others may develop resistance. There is also the possibility that, while glucocorticoids may improve short-term survival, the associated increase in infection risk removes that advantage at 90 days and 1 year after diagnosis. These infections, in turn, often precede the development of acute kidney injury and multiorgan failure.
The authors, however, did suggest that the approach of very high, short-term bursts of glucocorticoids to induce “immune paralysis” – an approach taken for lupus nephritis – might be considered.
They stressed that abstinence was the cornerstone of treatment for acute alcoholic hepatitis, with studies showing that patients with alcoholic hepatitis who resume heavy drinking have significantly worse outcomes than those who don’t.
“Although abstinence is important at all stages, it is particularly important to emphasize abstinence beyond 90 days when many patients are regaining normal functioning,” Dr. Mitchell and Dr. McClain wrote.
Infection, kidney injury, and malnutrition are all significant concerns in patients with acute alcoholic hepatitis.
With respect to infection, the authors said considerable suspicion is required to pick up bacterial and fungal infections, as patients may not always have a fever and an elevated white blood cell count is an unreliable indicator. Infection also can lead to acute kidney injury.
Malnutrition is not only common in patients with alcohol hepatitis, but it has a significant negative impact on recovery. All patients should be encouraged to meet nutritional goals as early as possible, but just how to achieve this is controversial, the authors stressed.
For example, one study suggested that enteral nutrition was as good as glucocorticoids in reducing 28-day mortality, while another found enteral nutrition via nasogastric tube – in addition to glucocorticoids – was no better than glucocorticoids alone. “Whether [nasogastric] tubes should be used to provide enteral nutrition is a subject of controversy,” the authors wrote. “Normal- to high-protein diets are safe and do not increase the risk of encephalopathy in patients with AH.”
No conflicts of interest were declared.
Acute alcoholic hepatitis carries a high risk of mortality, yet only a minority of patients admitted to the hospital with the condition receive appropriate treatment, said the authors of an expert review.
Writing in the January 2017 issue of Clinical Gastroenterology and Hepatology, Mack C. Mitchell Jr., MD, of the University of Texas Southwestern Medical Center, Dallas, and Craig J. McClain, MD, of the University of Louisville (Ky.), described the challenges associated with treating acute alcoholic hepatitis and its consequences.
Acute alcohol hepatitis develops in heavy drinkers and presents with rapid onset of malaise, anorexia, tender hepatomegaly, and features of the systemic inflammatory response syndrome. Patients with alcoholic hepatitis also are at high risk of nutritional deficiency, infection, acute kidney injury, and multiorgan failure.
The two most widely used therapies are glucocorticoids – generally considered the standard of care for severe alcoholic hepatitis – and the phosphodiesterase inhibitor pentoxifylline (Clin Gastroenterol Hepatol. 2017. doi: 10.1016/j.cgh.2016.08.047).
“Although in its most severe form AH has a high short-term mortality rate if untreated, in 2011, only 28% of more than 1,600 patients admitted to U.S. hospitals were treated with glucocorticoids and 17% with pentoxifylline (PTX), suggesting a lack of widespread confidence in the two most frequently used therapies for AH,” the authors wrote.
Both drugs work by addressing the underlying inflammation that plays a key role in liver injury, but the evidence for both is mixed: A 2008 Cochrane systematic review of 15 trials concluded there was no benefit from glucocorticoids, largely because of substantial variability in bias across the trials, while two meta-analyses of pentoxifylline trials concluded that there were no differences in short-term mortality between those who received it and those who did not.
Some patients are unsuitable for glucocorticoids and others may develop resistance. There is also the possibility that, while glucocorticoids may improve short-term survival, the associated increase in infection risk removes that advantage at 90 days and 1 year after diagnosis. These infections, in turn, often precede the development of acute kidney injury and multiorgan failure.
The authors, however, did suggest that the approach of very high, short-term bursts of glucocorticoids to induce “immune paralysis” – an approach taken for lupus nephritis – might be considered.
They stressed that abstinence was the cornerstone of treatment for acute alcoholic hepatitis, with studies showing that patients with alcoholic hepatitis who resume heavy drinking have significantly worse outcomes than those who don’t.
“Although abstinence is important at all stages, it is particularly important to emphasize abstinence beyond 90 days when many patients are regaining normal functioning,” Dr. Mitchell and Dr. McClain wrote.
Infection, kidney injury, and malnutrition are all significant concerns in patients with acute alcoholic hepatitis.
With respect to infection, the authors said considerable suspicion is required to pick up bacterial and fungal infections, as patients may not always have a fever and an elevated white blood cell count is an unreliable indicator. Infection also can lead to acute kidney injury.
Malnutrition is not only common in patients with alcohol hepatitis, but it has a significant negative impact on recovery. All patients should be encouraged to meet nutritional goals as early as possible, but just how to achieve this is controversial, the authors stressed.
For example, one study suggested that enteral nutrition was as good as glucocorticoids in reducing 28-day mortality, while another found enteral nutrition via nasogastric tube – in addition to glucocorticoids – was no better than glucocorticoids alone. “Whether [nasogastric] tubes should be used to provide enteral nutrition is a subject of controversy,” the authors wrote. “Normal- to high-protein diets are safe and do not increase the risk of encephalopathy in patients with AH.”
No conflicts of interest were declared.
Acute alcoholic hepatitis carries a high risk of mortality, yet only a minority of patients admitted to the hospital with the condition receive appropriate treatment, said the authors of an expert review.
Writing in the January 2017 issue of Clinical Gastroenterology and Hepatology, Mack C. Mitchell Jr., MD, of the University of Texas Southwestern Medical Center, Dallas, and Craig J. McClain, MD, of the University of Louisville (Ky.), described the challenges associated with treating acute alcoholic hepatitis and its consequences.
Acute alcohol hepatitis develops in heavy drinkers and presents with rapid onset of malaise, anorexia, tender hepatomegaly, and features of the systemic inflammatory response syndrome. Patients with alcoholic hepatitis also are at high risk of nutritional deficiency, infection, acute kidney injury, and multiorgan failure.
The two most widely used therapies are glucocorticoids – generally considered the standard of care for severe alcoholic hepatitis – and the phosphodiesterase inhibitor pentoxifylline (Clin Gastroenterol Hepatol. 2017. doi: 10.1016/j.cgh.2016.08.047).
“Although in its most severe form AH has a high short-term mortality rate if untreated, in 2011, only 28% of more than 1,600 patients admitted to U.S. hospitals were treated with glucocorticoids and 17% with pentoxifylline (PTX), suggesting a lack of widespread confidence in the two most frequently used therapies for AH,” the authors wrote.
Both drugs work by addressing the underlying inflammation that plays a key role in liver injury, but the evidence for both is mixed: A 2008 Cochrane systematic review of 15 trials concluded there was no benefit from glucocorticoids, largely because of substantial variability in bias across the trials, while two meta-analyses of pentoxifylline trials concluded that there were no differences in short-term mortality between those who received it and those who did not.
Some patients are unsuitable for glucocorticoids and others may develop resistance. There is also the possibility that, while glucocorticoids may improve short-term survival, the associated increase in infection risk removes that advantage at 90 days and 1 year after diagnosis. These infections, in turn, often precede the development of acute kidney injury and multiorgan failure.
The authors, however, did suggest that the approach of very high, short-term bursts of glucocorticoids to induce “immune paralysis” – an approach taken for lupus nephritis – might be considered.
They stressed that abstinence was the cornerstone of treatment for acute alcoholic hepatitis, with studies showing that patients with alcoholic hepatitis who resume heavy drinking have significantly worse outcomes than those who don’t.
“Although abstinence is important at all stages, it is particularly important to emphasize abstinence beyond 90 days when many patients are regaining normal functioning,” Dr. Mitchell and Dr. McClain wrote.
Infection, kidney injury, and malnutrition are all significant concerns in patients with acute alcoholic hepatitis.
With respect to infection, the authors said considerable suspicion is required to pick up bacterial and fungal infections, as patients may not always have a fever and an elevated white blood cell count is an unreliable indicator. Infection also can lead to acute kidney injury.
Malnutrition is not only common in patients with alcohol hepatitis, but it has a significant negative impact on recovery. All patients should be encouraged to meet nutritional goals as early as possible, but just how to achieve this is controversial, the authors stressed.
For example, one study suggested that enteral nutrition was as good as glucocorticoids in reducing 28-day mortality, while another found enteral nutrition via nasogastric tube – in addition to glucocorticoids – was no better than glucocorticoids alone. “Whether [nasogastric] tubes should be used to provide enteral nutrition is a subject of controversy,” the authors wrote. “Normal- to high-protein diets are safe and do not increase the risk of encephalopathy in patients with AH.”
No conflicts of interest were declared.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Covered-stent TIPS tops large-volume paracentesis for cirrhosis survival
One-year survival without liver transplant was far more likely when transjugular intrahepatic portosystemic shunts (TIPS) with covered stents were used to treat cirrhosis with recurrent ascites, instead of ongoing large-volume paracenteses with albumin, in a 62-patient randomized trial from France.
“TIPS with covered stents ... should therefore be preferred to LVP [large-volume paracenteses] with volume expansion... These findings support TIPS as the first-line intervention,” said investigators led by gastroenterologist Christophe Bureau, MD, of Toulouse (France) University in the January issue of Gastroenterology (doi: 10.1053/j.gastro.2016.09.016).
All 62 patients had at least two LVPs prior to the study; 29 were then randomized to covered transjugular intrahepatic portosystemic shunt (TIPS), and 33 to LVP and albumin as needed. All the patients were on a low-salt diet.
Twenty-seven TIPS patients (93%) were alive without a liver transplant at 1 year, versus 17 (52%) in the LVP group (P = .003). TIPS patients had a total of 32 paracenteses in the first year, versus 320 in the LVP group. Six paracentesis patients (18%) had portal hypertension–related bleeding, and six had hernia-related complications; none of the TIPS patients had either. LVP patients spent a mean of 35 days in the hospital, versus 17 days for the TIPS group (P = .04). The probability of remaining free of encephalopathy at 1 year was the same in both groups, at 65%.
It has been shown before that TIPS has the edge on LVP for reducing recurrence of tense ascites. However, early studies used uncovered stents and, due to their almost 80% risk of dysfunction, they did not show a significant benefit for survival. As a result, repeated paracenteses have been recommended as first-line treatment, with TIPS held in reserve for patients who need very frequent LVP.
Polytetrafluoroethylene-covered stents appear to have changed the equation, “owing to a substantial decrease in the rate of shunt dysfunction,” the investigators said.
The French results are a bit better than previous reports of covered TIPS. “This could be related to greater experience with the TIPS procedure;” there were no technical failures. The study also mostly included patients younger than 65 years with Child-Pugh class B disease and no prior encephalopathy – favorable factors that also may have contributed to the results. However, “we believe that the use of covered stents was the main determinant of the observed improvement in outcomes... TIPS with uncovered stent[s] should not be considered effective or recommended any longer for the long-term treatment of” portal hypertension, they said.
Cirrhosis in the trial was due almost entirely to alcohol abuse. About three-quarters of both groups reported abstinence while enrolled. The mean age was 56 years, and the majority of subjects were men.
The work was funded by the French Ministry of Health and supported by Gore, maker of the covered stent used in the study. Dr. Bureau and another author are Gore consultants.
One-year survival without liver transplant was far more likely when transjugular intrahepatic portosystemic shunts (TIPS) with covered stents were used to treat cirrhosis with recurrent ascites, instead of ongoing large-volume paracenteses with albumin, in a 62-patient randomized trial from France.
“TIPS with covered stents ... should therefore be preferred to LVP [large-volume paracenteses] with volume expansion... These findings support TIPS as the first-line intervention,” said investigators led by gastroenterologist Christophe Bureau, MD, of Toulouse (France) University in the January issue of Gastroenterology (doi: 10.1053/j.gastro.2016.09.016).
All 62 patients had at least two LVPs prior to the study; 29 were then randomized to covered transjugular intrahepatic portosystemic shunt (TIPS), and 33 to LVP and albumin as needed. All the patients were on a low-salt diet.
Twenty-seven TIPS patients (93%) were alive without a liver transplant at 1 year, versus 17 (52%) in the LVP group (P = .003). TIPS patients had a total of 32 paracenteses in the first year, versus 320 in the LVP group. Six paracentesis patients (18%) had portal hypertension–related bleeding, and six had hernia-related complications; none of the TIPS patients had either. LVP patients spent a mean of 35 days in the hospital, versus 17 days for the TIPS group (P = .04). The probability of remaining free of encephalopathy at 1 year was the same in both groups, at 65%.
It has been shown before that TIPS has the edge on LVP for reducing recurrence of tense ascites. However, early studies used uncovered stents and, due to their almost 80% risk of dysfunction, they did not show a significant benefit for survival. As a result, repeated paracenteses have been recommended as first-line treatment, with TIPS held in reserve for patients who need very frequent LVP.
Polytetrafluoroethylene-covered stents appear to have changed the equation, “owing to a substantial decrease in the rate of shunt dysfunction,” the investigators said.
The French results are a bit better than previous reports of covered TIPS. “This could be related to greater experience with the TIPS procedure;” there were no technical failures. The study also mostly included patients younger than 65 years with Child-Pugh class B disease and no prior encephalopathy – favorable factors that also may have contributed to the results. However, “we believe that the use of covered stents was the main determinant of the observed improvement in outcomes... TIPS with uncovered stent[s] should not be considered effective or recommended any longer for the long-term treatment of” portal hypertension, they said.
Cirrhosis in the trial was due almost entirely to alcohol abuse. About three-quarters of both groups reported abstinence while enrolled. The mean age was 56 years, and the majority of subjects were men.
The work was funded by the French Ministry of Health and supported by Gore, maker of the covered stent used in the study. Dr. Bureau and another author are Gore consultants.
One-year survival without liver transplant was far more likely when transjugular intrahepatic portosystemic shunts (TIPS) with covered stents were used to treat cirrhosis with recurrent ascites, instead of ongoing large-volume paracenteses with albumin, in a 62-patient randomized trial from France.
“TIPS with covered stents ... should therefore be preferred to LVP [large-volume paracenteses] with volume expansion... These findings support TIPS as the first-line intervention,” said investigators led by gastroenterologist Christophe Bureau, MD, of Toulouse (France) University in the January issue of Gastroenterology (doi: 10.1053/j.gastro.2016.09.016).
All 62 patients had at least two LVPs prior to the study; 29 were then randomized to covered transjugular intrahepatic portosystemic shunt (TIPS), and 33 to LVP and albumin as needed. All the patients were on a low-salt diet.
Twenty-seven TIPS patients (93%) were alive without a liver transplant at 1 year, versus 17 (52%) in the LVP group (P = .003). TIPS patients had a total of 32 paracenteses in the first year, versus 320 in the LVP group. Six paracentesis patients (18%) had portal hypertension–related bleeding, and six had hernia-related complications; none of the TIPS patients had either. LVP patients spent a mean of 35 days in the hospital, versus 17 days for the TIPS group (P = .04). The probability of remaining free of encephalopathy at 1 year was the same in both groups, at 65%.
It has been shown before that TIPS has the edge on LVP for reducing recurrence of tense ascites. However, early studies used uncovered stents and, due to their almost 80% risk of dysfunction, they did not show a significant benefit for survival. As a result, repeated paracenteses have been recommended as first-line treatment, with TIPS held in reserve for patients who need very frequent LVP.
Polytetrafluoroethylene-covered stents appear to have changed the equation, “owing to a substantial decrease in the rate of shunt dysfunction,” the investigators said.
The French results are a bit better than previous reports of covered TIPS. “This could be related to greater experience with the TIPS procedure;” there were no technical failures. The study also mostly included patients younger than 65 years with Child-Pugh class B disease and no prior encephalopathy – favorable factors that also may have contributed to the results. However, “we believe that the use of covered stents was the main determinant of the observed improvement in outcomes... TIPS with uncovered stent[s] should not be considered effective or recommended any longer for the long-term treatment of” portal hypertension, they said.
Cirrhosis in the trial was due almost entirely to alcohol abuse. About three-quarters of both groups reported abstinence while enrolled. The mean age was 56 years, and the majority of subjects were men.
The work was funded by the French Ministry of Health and supported by Gore, maker of the covered stent used in the study. Dr. Bureau and another author are Gore consultants.
FROM GASTROENTEROLOGY
Key clinical point:
Major finding: Twenty-seven TIPS patients (93%) were alive without a liver transplant at 1 year, versus 17 (52%) in the LVP group (P = .003).
Data source: Randomized trial with 62 patients.
Disclosures: The work was funded by the French Ministry of Health and supported by Gore, maker of the covered stent used in the study. The lead and one other investigator are Gore consultants.
Fecal calprotectin tops CRP as Crohn’s marker
Stool calprotectin correlates with severity of small-bowel Crohn’s disease, as measured against balloon-assisted enteroscopy and computed tomography enterography, according to a review reported in the January issue of Clinical Gastroenterology and Hepatology of 89 patients at Toho University in Chiba, Japan.
Although the correlation was moderate, the findings suggest that fecal calprotectin (FC), with additional work, might turn out to be a good biomarker for tracking small-bowel Crohn’s disease (CD) and its response to tumor necrosis factor blockers. “Currently, it is not widely accepted that FC relates to disease activity in patients with small-intestinal CD,” said investigators led by Tsunetaka Arai of Toho University’s division of gastroenterology and hepatology (Clin Gastroenterol Hepatol. 2016 Aug 23. doi: 10.1016/j.cgh.2016.08.015).
Gastroenterologists need a decent biomarker for small-bowel Crohn’s because old-school endoscopy falls short. Adhesions and strictures block endoscopes, and sometimes scopes simply can’t reach the disease site.
Balloon-assisted enteroscopy (BAE) and computed tomography enterography (CTE) have emerged in recent years as alternatives, but, even so, the need persists for a noninvasive and inexpensive biomarker that’s better than the current standard of C-reactive protein (CRP), which can be thrown off by systemic inflammation, among other problems. The Toho investigators “believe that FC could be a relevant surrogate marker of disease activity in small-bowel CD.” Stool calprotectin paralleled disease activity in their study, while “neither the CDAI [CD activity index] score nor serum CRP showed similar correlation,” they said.
However, elevations in FC – a calcium- and zinc-binding protein released when neutrophils, monocytes, and macrophages inflame the intestinal mucosa – was independent of CD location, which signals the need for further investigation.
Meanwhile, the decent correlation between FC and CTE in the study “should [also] mean that” they could be used together to reliably define mucosal healing. CTE on its own “showed good correlation” with BAE; a CTE score/segment less than 2 [was] associated with endoscopic mucosal healing” on BAE, the investigators said.
The study subjects were an average of 32 years old, and had CD for 9 years; most were men. They had highly active disease at their first endoscopy (average CDAI of 120 points), and an average CRP of 1.09 mg/dL. Twenty-seven patients (30.3%) had small-bowel CD, 50 (56.2%) had ileocolonic CD, and 12 (13.5%) had colonic CD.
They all had endoscopic exams, BAE, and FC stool testing; those with strictures (17) went on to CTE; CTE detected every lesion despite the strictures.
The authors had no conflicts of interest.
Stool calprotectin correlates with severity of small-bowel Crohn’s disease, as measured against balloon-assisted enteroscopy and computed tomography enterography, according to a review reported in the January issue of Clinical Gastroenterology and Hepatology of 89 patients at Toho University in Chiba, Japan.
Although the correlation was moderate, the findings suggest that fecal calprotectin (FC), with additional work, might turn out to be a good biomarker for tracking small-bowel Crohn’s disease (CD) and its response to tumor necrosis factor blockers. “Currently, it is not widely accepted that FC relates to disease activity in patients with small-intestinal CD,” said investigators led by Tsunetaka Arai of Toho University’s division of gastroenterology and hepatology (Clin Gastroenterol Hepatol. 2016 Aug 23. doi: 10.1016/j.cgh.2016.08.015).
Gastroenterologists need a decent biomarker for small-bowel Crohn’s because old-school endoscopy falls short. Adhesions and strictures block endoscopes, and sometimes scopes simply can’t reach the disease site.
Balloon-assisted enteroscopy (BAE) and computed tomography enterography (CTE) have emerged in recent years as alternatives, but, even so, the need persists for a noninvasive and inexpensive biomarker that’s better than the current standard of C-reactive protein (CRP), which can be thrown off by systemic inflammation, among other problems. The Toho investigators “believe that FC could be a relevant surrogate marker of disease activity in small-bowel CD.” Stool calprotectin paralleled disease activity in their study, while “neither the CDAI [CD activity index] score nor serum CRP showed similar correlation,” they said.
However, elevations in FC – a calcium- and zinc-binding protein released when neutrophils, monocytes, and macrophages inflame the intestinal mucosa – was independent of CD location, which signals the need for further investigation.
Meanwhile, the decent correlation between FC and CTE in the study “should [also] mean that” they could be used together to reliably define mucosal healing. CTE on its own “showed good correlation” with BAE; a CTE score/segment less than 2 [was] associated with endoscopic mucosal healing” on BAE, the investigators said.
The study subjects were an average of 32 years old, and had CD for 9 years; most were men. They had highly active disease at their first endoscopy (average CDAI of 120 points), and an average CRP of 1.09 mg/dL. Twenty-seven patients (30.3%) had small-bowel CD, 50 (56.2%) had ileocolonic CD, and 12 (13.5%) had colonic CD.
They all had endoscopic exams, BAE, and FC stool testing; those with strictures (17) went on to CTE; CTE detected every lesion despite the strictures.
The authors had no conflicts of interest.
Stool calprotectin correlates with severity of small-bowel Crohn’s disease, as measured against balloon-assisted enteroscopy and computed tomography enterography, according to a review reported in the January issue of Clinical Gastroenterology and Hepatology of 89 patients at Toho University in Chiba, Japan.
Although the correlation was moderate, the findings suggest that fecal calprotectin (FC), with additional work, might turn out to be a good biomarker for tracking small-bowel Crohn’s disease (CD) and its response to tumor necrosis factor blockers. “Currently, it is not widely accepted that FC relates to disease activity in patients with small-intestinal CD,” said investigators led by Tsunetaka Arai of Toho University’s division of gastroenterology and hepatology (Clin Gastroenterol Hepatol. 2016 Aug 23. doi: 10.1016/j.cgh.2016.08.015).
Gastroenterologists need a decent biomarker for small-bowel Crohn’s because old-school endoscopy falls short. Adhesions and strictures block endoscopes, and sometimes scopes simply can’t reach the disease site.
Balloon-assisted enteroscopy (BAE) and computed tomography enterography (CTE) have emerged in recent years as alternatives, but, even so, the need persists for a noninvasive and inexpensive biomarker that’s better than the current standard of C-reactive protein (CRP), which can be thrown off by systemic inflammation, among other problems. The Toho investigators “believe that FC could be a relevant surrogate marker of disease activity in small-bowel CD.” Stool calprotectin paralleled disease activity in their study, while “neither the CDAI [CD activity index] score nor serum CRP showed similar correlation,” they said.
However, elevations in FC – a calcium- and zinc-binding protein released when neutrophils, monocytes, and macrophages inflame the intestinal mucosa – was independent of CD location, which signals the need for further investigation.
Meanwhile, the decent correlation between FC and CTE in the study “should [also] mean that” they could be used together to reliably define mucosal healing. CTE on its own “showed good correlation” with BAE; a CTE score/segment less than 2 [was] associated with endoscopic mucosal healing” on BAE, the investigators said.
The study subjects were an average of 32 years old, and had CD for 9 years; most were men. They had highly active disease at their first endoscopy (average CDAI of 120 points), and an average CRP of 1.09 mg/dL. Twenty-seven patients (30.3%) had small-bowel CD, 50 (56.2%) had ileocolonic CD, and 12 (13.5%) had colonic CD.
They all had endoscopic exams, BAE, and FC stool testing; those with strictures (17) went on to CTE; CTE detected every lesion despite the strictures.
The authors had no conflicts of interest.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Key clinical point:
Major finding: A fecal calprotectin cutoff of 215 mcg/g identified mucosal healing with 82.8% sensitivity, 71.4% specificity, and an AUC of 0.81.
Data source: Review of 89 Crohn’s patients
Disclosures: The investigators had no conflicts of interest.
Mobile health indexes accurately detected active inflammatory bowel disease
Mobile health indexes for remotely monitoring Crohn’s disease and ulcerative colitis accurately identified clinically active disease and changed significantly as disease activity did, researchers reported in the December issue of Clinical Gastroenterology and Hepatology.
The mobile health index for Crohn’s disease predicted clinical disease activity with an area under the receiver operating characteristic curve (AUC) of 0.90, Welmoed K. van Deen, MD, of the University of California, Los Angeles, and her associates wrote in Clinical Gastroenterology and Hepatology. The AUC for the ulcerative colitis index for ulcerative colitis was very similar, at 0.91. “The [mobile health indexes] are specifically designed for implementation on a mobile application, and are currently available to patients with IBD [inflammatory bowel disease] treated at the UCLA Center for IBD,” the researchers said. “Prospective, randomized studies need to assess the effect of remote monitoring on disease control, quality of life, patient satisfaction, and health care costs.”
Inspired by the lack of smartphone applications for remotely managing inflammatory bowel disease, the researchers administered comprehensive disease-specific questionnaires to 110 patients with Crohn’s disease and 109 patients with ulcerative colitis who visited the UCLA IBD center in 2013 and 2014. They compared patient-reported outcomes across 10 domains of disease activity with scores on a number of existing disease activity indexes, and used logistic regression to identify which self-reported outcomes best predicted disease activity in both Crohn’s disease and ulcerative colitis (Clin Gastroenterol Hepatol. 2015 Nov 18. doi: 10.1016/j.cgh.2015.10.035).
The resulting Crohn’s disease mobile health index asked how many liquid or “very soft” stools patients had per day, if they had abdominal pain, and how they would rate their well-being and level of disease control on scales ranging between 0 and 10. The ulcerative colitis mobile health index asked about number of stools the day before and had patients score abdominal pain, frequency of rectal bleeding, and level of disease control between 0 and 10. The researchers also validated each mobile health index in multicenter cohorts of 301 patients with Crohn’s disease and 265 patients with ulcerative colitis.
Each mobile health index detected clinical disease activity with about 90% accuracy, compared with standard measures, including the Crohn’s disease activity index and the Harvey Bradshaw index for Crohn’s disease, the partial Mayo score, the simple clinical colitis activity index, and the modified Truelove and Witts index for ulcerative colitis. But the mobile indexes detected endoscopic disease activity less accurately, with AUCs of 0.82 for ulcerative colitis and only 0.63 for Crohn’s disease. “As previously shown, ulcerative colitis clinical disease activity highly correlates with endoscopic disease activity, whereas correlation between Crohn’s disease symptoms and endoscopic findings is poor,” the researchers noted. However, both mobile indexes reliably detected changes in disease activity, varying significantly depending on whether patients were clinically improved, stable, or worse, regardless of whether they had Crohn’s disease (P = .003) or ulcerative colitis (P = .0025).
To explore intrapatient reliability, the researchers also compared initial and follow-up mobile health index results for subgroups of 40 Crohn’s disease patients tested a median of 21 hours apart, and 37 ulcerative colitis patients tested a median of 23 hours apart. In both cases, the intraclass correlation coefficient reached 0.94 (95% confidence interval, 0.89-0.97). “Cloud-based health technologies are predicted to revolutionize care delivery and patient engagement,” the investigators commented. “Patients can participate in their care by signaling meaningful health outcomes during year-round monitoring. Barriers for more widespread implementation of mobile health in inflammatory bowel disease care include policies affecting reimbursement and regulatory requirements, and privacy and security concerns.”
Genova Diagnostics provided stool collection kits and fecal calprotectin testing. The investigators had no disclosures.
To make mobile applications for inflammatory bowel disease valuable, it is critical to accurately capture disease activity in a consistent and reproducible manner. With this in mind, Dr. Van Deen and colleagues designed and evaluated specific “mobile health indexes” (mHIs) for patients with Crohn’s disease and ulcerative colitis.
Patients were invited to complete validated questionnaires assessing patient-reported outcomes (PROs) and clinical disease activity. PROs across 10 domains with the strongest correlation to clinical disease activity scores were identified and used to generate the mobile health indexes.
Strengths of this particular study include the prospective design that incorporated reliability assessments and independent validation cohorts. Potential weaknesses include patient recall bias, small sample size, and lack of knowledge on how language and numerical scales were interpreted across health literacy levels and cultural backgrounds. Nevertheless, these mobile health indexes have promise, both as disease-monitoring and engagement tools, whose clinical impact has yet to be fully realized.
Lauren K. Tormey, MD, is an assistant professor of medicine at the Geisel School of Medicine at Dartmouth and member of the Dartmouth-Hitchcock Inflammatory Bowel Disease Center in Lebanon, N.H. She discloses no conflicts.
To make mobile applications for inflammatory bowel disease valuable, it is critical to accurately capture disease activity in a consistent and reproducible manner. With this in mind, Dr. Van Deen and colleagues designed and evaluated specific “mobile health indexes” (mHIs) for patients with Crohn’s disease and ulcerative colitis.
Patients were invited to complete validated questionnaires assessing patient-reported outcomes (PROs) and clinical disease activity. PROs across 10 domains with the strongest correlation to clinical disease activity scores were identified and used to generate the mobile health indexes.
Strengths of this particular study include the prospective design that incorporated reliability assessments and independent validation cohorts. Potential weaknesses include patient recall bias, small sample size, and lack of knowledge on how language and numerical scales were interpreted across health literacy levels and cultural backgrounds. Nevertheless, these mobile health indexes have promise, both as disease-monitoring and engagement tools, whose clinical impact has yet to be fully realized.
Lauren K. Tormey, MD, is an assistant professor of medicine at the Geisel School of Medicine at Dartmouth and member of the Dartmouth-Hitchcock Inflammatory Bowel Disease Center in Lebanon, N.H. She discloses no conflicts.
To make mobile applications for inflammatory bowel disease valuable, it is critical to accurately capture disease activity in a consistent and reproducible manner. With this in mind, Dr. Van Deen and colleagues designed and evaluated specific “mobile health indexes” (mHIs) for patients with Crohn’s disease and ulcerative colitis.
Patients were invited to complete validated questionnaires assessing patient-reported outcomes (PROs) and clinical disease activity. PROs across 10 domains with the strongest correlation to clinical disease activity scores were identified and used to generate the mobile health indexes.
Strengths of this particular study include the prospective design that incorporated reliability assessments and independent validation cohorts. Potential weaknesses include patient recall bias, small sample size, and lack of knowledge on how language and numerical scales were interpreted across health literacy levels and cultural backgrounds. Nevertheless, these mobile health indexes have promise, both as disease-monitoring and engagement tools, whose clinical impact has yet to be fully realized.
Lauren K. Tormey, MD, is an assistant professor of medicine at the Geisel School of Medicine at Dartmouth and member of the Dartmouth-Hitchcock Inflammatory Bowel Disease Center in Lebanon, N.H. She discloses no conflicts.
Mobile health indexes for remotely monitoring Crohn’s disease and ulcerative colitis accurately identified clinically active disease and changed significantly as disease activity did, researchers reported in the December issue of Clinical Gastroenterology and Hepatology.
The mobile health index for Crohn’s disease predicted clinical disease activity with an area under the receiver operating characteristic curve (AUC) of 0.90, Welmoed K. van Deen, MD, of the University of California, Los Angeles, and her associates wrote in Clinical Gastroenterology and Hepatology. The AUC for the ulcerative colitis index for ulcerative colitis was very similar, at 0.91. “The [mobile health indexes] are specifically designed for implementation on a mobile application, and are currently available to patients with IBD [inflammatory bowel disease] treated at the UCLA Center for IBD,” the researchers said. “Prospective, randomized studies need to assess the effect of remote monitoring on disease control, quality of life, patient satisfaction, and health care costs.”
Inspired by the lack of smartphone applications for remotely managing inflammatory bowel disease, the researchers administered comprehensive disease-specific questionnaires to 110 patients with Crohn’s disease and 109 patients with ulcerative colitis who visited the UCLA IBD center in 2013 and 2014. They compared patient-reported outcomes across 10 domains of disease activity with scores on a number of existing disease activity indexes, and used logistic regression to identify which self-reported outcomes best predicted disease activity in both Crohn’s disease and ulcerative colitis (Clin Gastroenterol Hepatol. 2015 Nov 18. doi: 10.1016/j.cgh.2015.10.035).
The resulting Crohn’s disease mobile health index asked how many liquid or “very soft” stools patients had per day, if they had abdominal pain, and how they would rate their well-being and level of disease control on scales ranging between 0 and 10. The ulcerative colitis mobile health index asked about number of stools the day before and had patients score abdominal pain, frequency of rectal bleeding, and level of disease control between 0 and 10. The researchers also validated each mobile health index in multicenter cohorts of 301 patients with Crohn’s disease and 265 patients with ulcerative colitis.
Each mobile health index detected clinical disease activity with about 90% accuracy, compared with standard measures, including the Crohn’s disease activity index and the Harvey Bradshaw index for Crohn’s disease, the partial Mayo score, the simple clinical colitis activity index, and the modified Truelove and Witts index for ulcerative colitis. But the mobile indexes detected endoscopic disease activity less accurately, with AUCs of 0.82 for ulcerative colitis and only 0.63 for Crohn’s disease. “As previously shown, ulcerative colitis clinical disease activity highly correlates with endoscopic disease activity, whereas correlation between Crohn’s disease symptoms and endoscopic findings is poor,” the researchers noted. However, both mobile indexes reliably detected changes in disease activity, varying significantly depending on whether patients were clinically improved, stable, or worse, regardless of whether they had Crohn’s disease (P = .003) or ulcerative colitis (P = .0025).
To explore intrapatient reliability, the researchers also compared initial and follow-up mobile health index results for subgroups of 40 Crohn’s disease patients tested a median of 21 hours apart, and 37 ulcerative colitis patients tested a median of 23 hours apart. In both cases, the intraclass correlation coefficient reached 0.94 (95% confidence interval, 0.89-0.97). “Cloud-based health technologies are predicted to revolutionize care delivery and patient engagement,” the investigators commented. “Patients can participate in their care by signaling meaningful health outcomes during year-round monitoring. Barriers for more widespread implementation of mobile health in inflammatory bowel disease care include policies affecting reimbursement and regulatory requirements, and privacy and security concerns.”
Genova Diagnostics provided stool collection kits and fecal calprotectin testing. The investigators had no disclosures.
Mobile health indexes for remotely monitoring Crohn’s disease and ulcerative colitis accurately identified clinically active disease and changed significantly as disease activity did, researchers reported in the December issue of Clinical Gastroenterology and Hepatology.
The mobile health index for Crohn’s disease predicted clinical disease activity with an area under the receiver operating characteristic curve (AUC) of 0.90, Welmoed K. van Deen, MD, of the University of California, Los Angeles, and her associates wrote in Clinical Gastroenterology and Hepatology. The AUC for the ulcerative colitis index for ulcerative colitis was very similar, at 0.91. “The [mobile health indexes] are specifically designed for implementation on a mobile application, and are currently available to patients with IBD [inflammatory bowel disease] treated at the UCLA Center for IBD,” the researchers said. “Prospective, randomized studies need to assess the effect of remote monitoring on disease control, quality of life, patient satisfaction, and health care costs.”
Inspired by the lack of smartphone applications for remotely managing inflammatory bowel disease, the researchers administered comprehensive disease-specific questionnaires to 110 patients with Crohn’s disease and 109 patients with ulcerative colitis who visited the UCLA IBD center in 2013 and 2014. They compared patient-reported outcomes across 10 domains of disease activity with scores on a number of existing disease activity indexes, and used logistic regression to identify which self-reported outcomes best predicted disease activity in both Crohn’s disease and ulcerative colitis (Clin Gastroenterol Hepatol. 2015 Nov 18. doi: 10.1016/j.cgh.2015.10.035).
The resulting Crohn’s disease mobile health index asked how many liquid or “very soft” stools patients had per day, if they had abdominal pain, and how they would rate their well-being and level of disease control on scales ranging between 0 and 10. The ulcerative colitis mobile health index asked about number of stools the day before and had patients score abdominal pain, frequency of rectal bleeding, and level of disease control between 0 and 10. The researchers also validated each mobile health index in multicenter cohorts of 301 patients with Crohn’s disease and 265 patients with ulcerative colitis.
Each mobile health index detected clinical disease activity with about 90% accuracy, compared with standard measures, including the Crohn’s disease activity index and the Harvey Bradshaw index for Crohn’s disease, the partial Mayo score, the simple clinical colitis activity index, and the modified Truelove and Witts index for ulcerative colitis. But the mobile indexes detected endoscopic disease activity less accurately, with AUCs of 0.82 for ulcerative colitis and only 0.63 for Crohn’s disease. “As previously shown, ulcerative colitis clinical disease activity highly correlates with endoscopic disease activity, whereas correlation between Crohn’s disease symptoms and endoscopic findings is poor,” the researchers noted. However, both mobile indexes reliably detected changes in disease activity, varying significantly depending on whether patients were clinically improved, stable, or worse, regardless of whether they had Crohn’s disease (P = .003) or ulcerative colitis (P = .0025).
To explore intrapatient reliability, the researchers also compared initial and follow-up mobile health index results for subgroups of 40 Crohn’s disease patients tested a median of 21 hours apart, and 37 ulcerative colitis patients tested a median of 23 hours apart. In both cases, the intraclass correlation coefficient reached 0.94 (95% confidence interval, 0.89-0.97). “Cloud-based health technologies are predicted to revolutionize care delivery and patient engagement,” the investigators commented. “Patients can participate in their care by signaling meaningful health outcomes during year-round monitoring. Barriers for more widespread implementation of mobile health in inflammatory bowel disease care include policies affecting reimbursement and regulatory requirements, and privacy and security concerns.”
Genova Diagnostics provided stool collection kits and fecal calprotectin testing. The investigators had no disclosures.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Key clinical point: Two short mobile health indexes accurately identified disease activity in Crohn’s disease and ulcerative colitis.
Major finding: Areas under the receiver operating curve (AUC) were 0.91 for Crohn’s disease and 0.90 for ulcerative colitis when compared with standard measures of clinical disease activity.
Data source: A prospective, observational study of 110 patients with Crohn’s disease and 109 patients with ulcerative colitis.
Disclosures: Genova Diagnostics provided stool collection kits and fecal calprotectin testing. The investigators had no disclosures.
Second course of rifaximin edges out placebo in IBS-D trial
Patients with diarrhea-predominant irritable bowel syndrome (IBS-D) who responded to rifaximin but relapsed after completing treatment were significantly more likely to respond to a second course of the antibiotic than to placebo, according to a report in the December issue of Gastroenterology (2016 Aug 5. doi: 10.1053/j.gastro.2016.08.003).
A total of 38% of patients who received a second course of rifaximin met the primary endpoint in the randomized double-blinded trial, compared with 31.5% of the placebo group (P = .03), Dr. Anthony Lembo of Beth Israel Deaconess Medical Center, Boston, and his associates wrote in Gastroenterology. “Although this study had a positive outcome, questions remain regarding the role of nonsystemic antibiotics in the long term, particularly when patients with IBS-D may require years of symptom management,” they added. “Further research is needed to better understand the treatment algorithm in patients who may lose responsiveness to rifaximin.”
Rifaximin (Xifaxan) has been approved in the United States for treating IBS-D since 2015. The agent is an oral, minimally absorbed, broad-spectrum antibiotic that targets the gastrointestinal tract and has rarely been linked to “clinically relevant” antibiotic resistance, the researchers said. However, pivotal IBS-D trials had not investigated the durability of response to rifaximin or the efficacy and safety of repeat treatment, they noted. Therefore, they followed 1,074 patients with IBS-D who had responded to an open-label 2-week course of rifaximin dosed orally at 550 mg three times daily. By definition, these responders had met a combined primary endpoint that included at least a 30% decrease in abdominal pain and at least a 50% decrease in the frequency of loose stools during at least 2 of 4 weeks of follow-up.
In all, 692 (64%) responders relapsed up to 18 weeks after finishing the first rifaximin course, the investigators said. They randomly assigned 636 of these relapsers to double-blinded treatment with either placebo or a second course of rifaximin. In all, 125 of 328 patients (38.1%) in the rifaximin group again met the combined primary endpoint, compared with 97 of 308 patients (31.5%) in the placebo group (P = .03). Repeat rifaximin treatment also significantly outperformed placebo in terms of the individual abdominal pain endpoint (51% versus 42%, respectively; P = .02), but not the stool consistency endpoint (52% versus 50%).
“Adverse event rates were low and similar between groups,” the researchers said. Patients who received a second course of rifaximin most commonly developed nausea (3.7%), upper respiratory infection (3.7%), urinary tract infection (3.4%), and nasopharyngitis (3.0%). Four patients (1%) in each treatment group developed serious adverse events, none of which were deemed treatment related. One patient developed Clostridium difficile colitis 37 days after completing the second course of rifaximin. However, this patient had a past history of C. difficile infection, had tested negative for C. difficile toxins A and B at enrollment, and had completed a 10-day course of cefdinir for a urinary tract infection immediately before developing C. difficile colitis.
Salix Pharmaceuticals makes rifaximin and funded the study. Dr. Lembo and his coinvestigators disclosed ties to Salix.
Patients with diarrhea-predominant irritable bowel syndrome (IBS-D) who responded to rifaximin but relapsed after completing treatment were significantly more likely to respond to a second course of the antibiotic than to placebo, according to a report in the December issue of Gastroenterology (2016 Aug 5. doi: 10.1053/j.gastro.2016.08.003).
A total of 38% of patients who received a second course of rifaximin met the primary endpoint in the randomized double-blinded trial, compared with 31.5% of the placebo group (P = .03), Dr. Anthony Lembo of Beth Israel Deaconess Medical Center, Boston, and his associates wrote in Gastroenterology. “Although this study had a positive outcome, questions remain regarding the role of nonsystemic antibiotics in the long term, particularly when patients with IBS-D may require years of symptom management,” they added. “Further research is needed to better understand the treatment algorithm in patients who may lose responsiveness to rifaximin.”
Rifaximin (Xifaxan) has been approved in the United States for treating IBS-D since 2015. The agent is an oral, minimally absorbed, broad-spectrum antibiotic that targets the gastrointestinal tract and has rarely been linked to “clinically relevant” antibiotic resistance, the researchers said. However, pivotal IBS-D trials had not investigated the durability of response to rifaximin or the efficacy and safety of repeat treatment, they noted. Therefore, they followed 1,074 patients with IBS-D who had responded to an open-label 2-week course of rifaximin dosed orally at 550 mg three times daily. By definition, these responders had met a combined primary endpoint that included at least a 30% decrease in abdominal pain and at least a 50% decrease in the frequency of loose stools during at least 2 of 4 weeks of follow-up.
In all, 692 (64%) responders relapsed up to 18 weeks after finishing the first rifaximin course, the investigators said. They randomly assigned 636 of these relapsers to double-blinded treatment with either placebo or a second course of rifaximin. In all, 125 of 328 patients (38.1%) in the rifaximin group again met the combined primary endpoint, compared with 97 of 308 patients (31.5%) in the placebo group (P = .03). Repeat rifaximin treatment also significantly outperformed placebo in terms of the individual abdominal pain endpoint (51% versus 42%, respectively; P = .02), but not the stool consistency endpoint (52% versus 50%).
“Adverse event rates were low and similar between groups,” the researchers said. Patients who received a second course of rifaximin most commonly developed nausea (3.7%), upper respiratory infection (3.7%), urinary tract infection (3.4%), and nasopharyngitis (3.0%). Four patients (1%) in each treatment group developed serious adverse events, none of which were deemed treatment related. One patient developed Clostridium difficile colitis 37 days after completing the second course of rifaximin. However, this patient had a past history of C. difficile infection, had tested negative for C. difficile toxins A and B at enrollment, and had completed a 10-day course of cefdinir for a urinary tract infection immediately before developing C. difficile colitis.
Salix Pharmaceuticals makes rifaximin and funded the study. Dr. Lembo and his coinvestigators disclosed ties to Salix.
Patients with diarrhea-predominant irritable bowel syndrome (IBS-D) who responded to rifaximin but relapsed after completing treatment were significantly more likely to respond to a second course of the antibiotic than to placebo, according to a report in the December issue of Gastroenterology (2016 Aug 5. doi: 10.1053/j.gastro.2016.08.003).
A total of 38% of patients who received a second course of rifaximin met the primary endpoint in the randomized double-blinded trial, compared with 31.5% of the placebo group (P = .03), Dr. Anthony Lembo of Beth Israel Deaconess Medical Center, Boston, and his associates wrote in Gastroenterology. “Although this study had a positive outcome, questions remain regarding the role of nonsystemic antibiotics in the long term, particularly when patients with IBS-D may require years of symptom management,” they added. “Further research is needed to better understand the treatment algorithm in patients who may lose responsiveness to rifaximin.”
Rifaximin (Xifaxan) has been approved in the United States for treating IBS-D since 2015. The agent is an oral, minimally absorbed, broad-spectrum antibiotic that targets the gastrointestinal tract and has rarely been linked to “clinically relevant” antibiotic resistance, the researchers said. However, pivotal IBS-D trials had not investigated the durability of response to rifaximin or the efficacy and safety of repeat treatment, they noted. Therefore, they followed 1,074 patients with IBS-D who had responded to an open-label 2-week course of rifaximin dosed orally at 550 mg three times daily. By definition, these responders had met a combined primary endpoint that included at least a 30% decrease in abdominal pain and at least a 50% decrease in the frequency of loose stools during at least 2 of 4 weeks of follow-up.
In all, 692 (64%) responders relapsed up to 18 weeks after finishing the first rifaximin course, the investigators said. They randomly assigned 636 of these relapsers to double-blinded treatment with either placebo or a second course of rifaximin. In all, 125 of 328 patients (38.1%) in the rifaximin group again met the combined primary endpoint, compared with 97 of 308 patients (31.5%) in the placebo group (P = .03). Repeat rifaximin treatment also significantly outperformed placebo in terms of the individual abdominal pain endpoint (51% versus 42%, respectively; P = .02), but not the stool consistency endpoint (52% versus 50%).
“Adverse event rates were low and similar between groups,” the researchers said. Patients who received a second course of rifaximin most commonly developed nausea (3.7%), upper respiratory infection (3.7%), urinary tract infection (3.4%), and nasopharyngitis (3.0%). Four patients (1%) in each treatment group developed serious adverse events, none of which were deemed treatment related. One patient developed Clostridium difficile colitis 37 days after completing the second course of rifaximin. However, this patient had a past history of C. difficile infection, had tested negative for C. difficile toxins A and B at enrollment, and had completed a 10-day course of cefdinir for a urinary tract infection immediately before developing C. difficile colitis.
Salix Pharmaceuticals makes rifaximin and funded the study. Dr. Lembo and his coinvestigators disclosed ties to Salix.
FROM GASTROENTEROLOGY
Key clinical point: A second course of rifaximin may be merited in patients with diarrhea-predominant irritable bowel syndrome.
Major finding: In all, 38% of patients who received a second course of the antibiotic met the primary endpoint, compared with 31.5% of those who received placebo (P = .03),
Data source: A randomized, double-blind, phase III trial of 692 patients with IBS-D who relapsed after initially responding to a 2-week course of rifaximin.
Disclosures: Salix Pharmaceuticals, maker of rifaximin, funded the study. Dr. Lembo and his coinvestigators disclosed ties to Salix.
Yoga holds up to medications, walking for irritable bowel syndrome
Yoga may be a feasible and safe add-on therapy for patients with irritable bowel syndrome, based on a systematic review of six randomized controlled trials of 273 patients published in the December issue of Clinical Gastroenterology and Hepatology.
Yoga significantly outperformed no treatment and resembled pharmacologic therapies for IBS on measures of bowel symptoms, anxiety, and quality of life, said Dania Schumann of the University of Duisburg-Essen, Essen, Germany.
“Yoga also seems to be equally effective as a walking program in improving patient-reported outcomes,” she and her coinvestigators wrote. But “wide methodological heterogeneity” and a “mostly unclear risk of bias,” precluded a direct recommendation for yoga in IBS, they said. Nonetheless, “its practice need not be discouraged in this patient population, especially when [patients] believe that it benefits their health, quality of life, or IBS-related comorbidities.”
Experts have increasingly emphasized the role of stress, psychological disorders, and the bidirectional gut-brain axis in IBS, the reviewers noted. Because yoga had been found to cut stress and improve psychological functioning in past studies, they hypothesized that it also might improve IBS symptoms. By searching MEDLINE/Pubmed, the Cochrane Library, CAM-QUEST, CAMbase, and IndMED for studies of IBS and yoga, they identified 93 records, including six randomized controlled trials from India, the United States, and Canada. One trial defined IBS based on Rome I criteria, another used Rome II criteria, three used Rome III criteria, and the sixth trial relied solely on clinical and laboratory measures. Patients ranged in age from 14 to 44 years (median, 32 years), and most were female. They were allowed to continue their usual IBS care (Clin Gastroenterol Hepatol. 2016 Apr 22. doi: 10.1016/j.cgh.2016.04.026). Two trials compared 9-12 weeks of yoga with pharmacologic therapies. In one study, yoga and loperamide were associated with similar improvements in bowel symptoms, state anxiety, gastric motility, and other measures of autonomic reactivity. The second study found no significant differences in the colonic myoelectrical effects of yoga, placebo, and a regimen of psyllium husk, propantheline, and diazepam.
Three studies compared 4-12 weeks of Iyengar or hatha yoga with usual IBS care. Yoga outperformed standard care on measures of IBS symptoms, quality of life, psychological distress, and fatigue in two trials. The third study found a benefit for yoga after wait-listed controls joined the yoga intervention and the researchers combined their data with the other yoga group.
The sixth trial compared yoga with a walking program and found similar effects. Yoga was associated with significant improvements in abdominal pain, visceral sensitivity, and GI symptoms, while walking improved gastrointestinal symptoms, negative affect, and state anxiety. But at 6-month follow-up, walkers had fewer gastrointestinal symptoms than did the yoga group, perhaps because a walking program is easier to maintain at home, the reviewers noted.
Only one trial adequately performed adequate blinding during outcome assessments, and several others were at high risk of performance bias, reporting bias, and attrition bias, the reviewers said. The trials also did not adequately describe methods to randomize patients or conceal group allocations, and “selective reporting and high dropout rates [were] an issue,” they added.
Adverse events related to yoga included three cases of temporarily aggravated lower back pain and one fall after a participant slipped and hit his knee while in a headstand. However, only two trials assessed adverse events, the reviewers noted. “Future studies should ensure rigorous reporting of adverse events, and the correct use of terminology,” they said.
Because meditation, breathing exercises, and yoga seem to improve both stress and IBS symptoms, researchers should consider these practices when studying patients with “an increased gastrointestinal response to stress,” the reviewers concluded. “So far, the recent global guidelines of the World Gastroenterology Organization on IBS consider sufficient physical activity and relaxation techniques to be appropriate nonpharmacologic approaches.”
The reviewers did not report funding sources. They had no relevant conflicts of interest.
Yoga may be a feasible and safe add-on therapy for patients with irritable bowel syndrome, based on a systematic review of six randomized controlled trials of 273 patients published in the December issue of Clinical Gastroenterology and Hepatology.
Yoga significantly outperformed no treatment and resembled pharmacologic therapies for IBS on measures of bowel symptoms, anxiety, and quality of life, said Dania Schumann of the University of Duisburg-Essen, Essen, Germany.
“Yoga also seems to be equally effective as a walking program in improving patient-reported outcomes,” she and her coinvestigators wrote. But “wide methodological heterogeneity” and a “mostly unclear risk of bias,” precluded a direct recommendation for yoga in IBS, they said. Nonetheless, “its practice need not be discouraged in this patient population, especially when [patients] believe that it benefits their health, quality of life, or IBS-related comorbidities.”
Experts have increasingly emphasized the role of stress, psychological disorders, and the bidirectional gut-brain axis in IBS, the reviewers noted. Because yoga had been found to cut stress and improve psychological functioning in past studies, they hypothesized that it also might improve IBS symptoms. By searching MEDLINE/Pubmed, the Cochrane Library, CAM-QUEST, CAMbase, and IndMED for studies of IBS and yoga, they identified 93 records, including six randomized controlled trials from India, the United States, and Canada. One trial defined IBS based on Rome I criteria, another used Rome II criteria, three used Rome III criteria, and the sixth trial relied solely on clinical and laboratory measures. Patients ranged in age from 14 to 44 years (median, 32 years), and most were female. They were allowed to continue their usual IBS care (Clin Gastroenterol Hepatol. 2016 Apr 22. doi: 10.1016/j.cgh.2016.04.026). Two trials compared 9-12 weeks of yoga with pharmacologic therapies. In one study, yoga and loperamide were associated with similar improvements in bowel symptoms, state anxiety, gastric motility, and other measures of autonomic reactivity. The second study found no significant differences in the colonic myoelectrical effects of yoga, placebo, and a regimen of psyllium husk, propantheline, and diazepam.
Three studies compared 4-12 weeks of Iyengar or hatha yoga with usual IBS care. Yoga outperformed standard care on measures of IBS symptoms, quality of life, psychological distress, and fatigue in two trials. The third study found a benefit for yoga after wait-listed controls joined the yoga intervention and the researchers combined their data with the other yoga group.
The sixth trial compared yoga with a walking program and found similar effects. Yoga was associated with significant improvements in abdominal pain, visceral sensitivity, and GI symptoms, while walking improved gastrointestinal symptoms, negative affect, and state anxiety. But at 6-month follow-up, walkers had fewer gastrointestinal symptoms than did the yoga group, perhaps because a walking program is easier to maintain at home, the reviewers noted.
Only one trial adequately performed adequate blinding during outcome assessments, and several others were at high risk of performance bias, reporting bias, and attrition bias, the reviewers said. The trials also did not adequately describe methods to randomize patients or conceal group allocations, and “selective reporting and high dropout rates [were] an issue,” they added.
Adverse events related to yoga included three cases of temporarily aggravated lower back pain and one fall after a participant slipped and hit his knee while in a headstand. However, only two trials assessed adverse events, the reviewers noted. “Future studies should ensure rigorous reporting of adverse events, and the correct use of terminology,” they said.
Because meditation, breathing exercises, and yoga seem to improve both stress and IBS symptoms, researchers should consider these practices when studying patients with “an increased gastrointestinal response to stress,” the reviewers concluded. “So far, the recent global guidelines of the World Gastroenterology Organization on IBS consider sufficient physical activity and relaxation techniques to be appropriate nonpharmacologic approaches.”
The reviewers did not report funding sources. They had no relevant conflicts of interest.
Yoga may be a feasible and safe add-on therapy for patients with irritable bowel syndrome, based on a systematic review of six randomized controlled trials of 273 patients published in the December issue of Clinical Gastroenterology and Hepatology.
Yoga significantly outperformed no treatment and resembled pharmacologic therapies for IBS on measures of bowel symptoms, anxiety, and quality of life, said Dania Schumann of the University of Duisburg-Essen, Essen, Germany.
“Yoga also seems to be equally effective as a walking program in improving patient-reported outcomes,” she and her coinvestigators wrote. But “wide methodological heterogeneity” and a “mostly unclear risk of bias,” precluded a direct recommendation for yoga in IBS, they said. Nonetheless, “its practice need not be discouraged in this patient population, especially when [patients] believe that it benefits their health, quality of life, or IBS-related comorbidities.”
Experts have increasingly emphasized the role of stress, psychological disorders, and the bidirectional gut-brain axis in IBS, the reviewers noted. Because yoga had been found to cut stress and improve psychological functioning in past studies, they hypothesized that it also might improve IBS symptoms. By searching MEDLINE/Pubmed, the Cochrane Library, CAM-QUEST, CAMbase, and IndMED for studies of IBS and yoga, they identified 93 records, including six randomized controlled trials from India, the United States, and Canada. One trial defined IBS based on Rome I criteria, another used Rome II criteria, three used Rome III criteria, and the sixth trial relied solely on clinical and laboratory measures. Patients ranged in age from 14 to 44 years (median, 32 years), and most were female. They were allowed to continue their usual IBS care (Clin Gastroenterol Hepatol. 2016 Apr 22. doi: 10.1016/j.cgh.2016.04.026). Two trials compared 9-12 weeks of yoga with pharmacologic therapies. In one study, yoga and loperamide were associated with similar improvements in bowel symptoms, state anxiety, gastric motility, and other measures of autonomic reactivity. The second study found no significant differences in the colonic myoelectrical effects of yoga, placebo, and a regimen of psyllium husk, propantheline, and diazepam.
Three studies compared 4-12 weeks of Iyengar or hatha yoga with usual IBS care. Yoga outperformed standard care on measures of IBS symptoms, quality of life, psychological distress, and fatigue in two trials. The third study found a benefit for yoga after wait-listed controls joined the yoga intervention and the researchers combined their data with the other yoga group.
The sixth trial compared yoga with a walking program and found similar effects. Yoga was associated with significant improvements in abdominal pain, visceral sensitivity, and GI symptoms, while walking improved gastrointestinal symptoms, negative affect, and state anxiety. But at 6-month follow-up, walkers had fewer gastrointestinal symptoms than did the yoga group, perhaps because a walking program is easier to maintain at home, the reviewers noted.
Only one trial adequately performed adequate blinding during outcome assessments, and several others were at high risk of performance bias, reporting bias, and attrition bias, the reviewers said. The trials also did not adequately describe methods to randomize patients or conceal group allocations, and “selective reporting and high dropout rates [were] an issue,” they added.
Adverse events related to yoga included three cases of temporarily aggravated lower back pain and one fall after a participant slipped and hit his knee while in a headstand. However, only two trials assessed adverse events, the reviewers noted. “Future studies should ensure rigorous reporting of adverse events, and the correct use of terminology,” they said.
Because meditation, breathing exercises, and yoga seem to improve both stress and IBS symptoms, researchers should consider these practices when studying patients with “an increased gastrointestinal response to stress,” the reviewers concluded. “So far, the recent global guidelines of the World Gastroenterology Organization on IBS consider sufficient physical activity and relaxation techniques to be appropriate nonpharmacologic approaches.”
The reviewers did not report funding sources. They had no relevant conflicts of interest.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Key clinical point: Yoga may be an appropriate adjunctive therapy for patients with irritable bowel syndrome.
Major finding: Yoga outperformed no treatment on measures of gastrointestinal symptoms, anxiety, and quality of life, and was comparable to standard medications and a walking program.
Data source: A systematic review of six randomized controlled trials of 273 patients with irritable bowel syndrome.
Disclosures: The reviewers did not report funding sources. They had no relevant conflicts of interest.
VIDEO: No difference between PPI and H2RA for low-dose aspirin gastroprotection
Among patients on low-dose aspirin at risk for recurrent GI bleeding, there were slightly fewer GI bleeds or ulcers when patients were on the proton pump inhibitor rabeprazole (Aciphex) instead of the histamine2-receptor antagonist famotidine (Pepcid), but the difference was not statistically significant according to a study reported in the January issue of Gastroenterology.
SOURCE: American Gastroenterological Association
In a 270-subject, double-blind, randomized trial in Hong Kong and Japan led by Francis Chan, MD, of the Chinese University of Hong Kong, investigators found, “Among high-risk aspirin users, the incidence of recurrent bleeding is comparable with either use of PPI [proton pump inhibitor] or H2RA [H2-receptor antagonist].” However, “since a small difference in efficacy cannot be excluded, PPI probably remains the preferred treatment for long-term protection against upper GI bleeding in high-risk aspirin users” (Gastroenterology. 2016 Sep 15. doi: 10.1053/j.gastro.2016.09.006).
Even so, “our findings suggest that famotidine may be a reasonable alternative option for aspirin users who disfavor long-term PPI therapy,” they said.
Because of concerns about the long-term safety of PPIs, including the association between PPIs and increased risk of serious cardiovascular events in patients on clopidogrel (Plavix), clinicians have been looking for alternatives. The findings reassure that H2RAs are a reasonable choice; many clinicians have already turned to them.
All 270 subjects had previously had endoscopically confirmed ulcer bleeding while on low-dose aspirin (325 mg or less per day). “Considering clinicians will be most concerned with the adequacy of gastroprotective treatment effect in aspirin users with the highest risk, we exclusively enrolled patients with endoscopy-proven upper GI bleeding,” Dr. Chan and his colleagues said.
After the ulcers healed, the subjects resumed aspirin (80 mg) daily and were randomized to either famotidine 40 mg once daily (n = 132) or rabeprazole 20 mg daily (n = 138) for up to 12 months. Helicobacter pylori was eradicated prior to randomization in patients who tested positive. Subjects were evaluated every 2 months, with repeat endoscopy for symptoms of upper GI bleeding or significant drops in hemoglobin, as well as at the end of the study.
During the 12-month study period, upper GI bleeding recurred in one patient receiving rabeprazole (0.7%) and four receiving famotidine (3.1%; P = .16). The composite endpoint of recurrent bleeding or endoscopic ulcers at month 12 was reached by nine patients in the rabeprazole group (7.9%) and 13 receiving famotidine (12.4%; P = .26).
“Our findings indicate that both treatments are comparable in preventing recurrent upper GI bleeding in high-risk aspirin users, although a small difference in efficacy cannot be excluded,” the investigators said.
Over two-thirds of the subjects were men, and the mean age was 73 years. About a quarter in the PPI group and almost 40% in the H2RA group had H. pylori cleared before randomization.
The Research Grant Council of Hong Kong funded the work. Dr. Chan has served as a consultant to Pfizer, Eisai, Takeda, and Otsuka, and has received research grants from Pfizer and lecture fees from Pfizer, AstraZeneca, and Takeda. Several other authors reported similar industry disclosures.
Aspirin is widely used for primary and secondary prophylaxis of cardiovascular disease. Dr. Chan and colleagues present a randomized, controlled trial comparing rabeprazole 20 mg once a day to famotidine 40 mg once a day in preventing recurrent GI hemorrhage and endoscopic ulcers in low-dose (less than 325 mg) aspirin users. The authors conclude that no statistical difference was found between the two agents. The study contrasts with another study from Hong Kong, which found that proton pump inhibitors were more effective.
The authors are to be complimented on this important addition to the literature but the reader should not conclude that H2-receptor antagonists and proton pump inhibitors are equivalent in preventing recurrent bleeding from aspirin-induced ulcers.
Nimish Vakil, MD, AGAF, is clinical professor of medicine at the University of Wisconsin–Madison. He has consulted for Ironwood and AstraZeneca.
Aspirin is widely used for primary and secondary prophylaxis of cardiovascular disease. Dr. Chan and colleagues present a randomized, controlled trial comparing rabeprazole 20 mg once a day to famotidine 40 mg once a day in preventing recurrent GI hemorrhage and endoscopic ulcers in low-dose (less than 325 mg) aspirin users. The authors conclude that no statistical difference was found between the two agents. The study contrasts with another study from Hong Kong, which found that proton pump inhibitors were more effective.
The authors are to be complimented on this important addition to the literature but the reader should not conclude that H2-receptor antagonists and proton pump inhibitors are equivalent in preventing recurrent bleeding from aspirin-induced ulcers.
Nimish Vakil, MD, AGAF, is clinical professor of medicine at the University of Wisconsin–Madison. He has consulted for Ironwood and AstraZeneca.
Aspirin is widely used for primary and secondary prophylaxis of cardiovascular disease. Dr. Chan and colleagues present a randomized, controlled trial comparing rabeprazole 20 mg once a day to famotidine 40 mg once a day in preventing recurrent GI hemorrhage and endoscopic ulcers in low-dose (less than 325 mg) aspirin users. The authors conclude that no statistical difference was found between the two agents. The study contrasts with another study from Hong Kong, which found that proton pump inhibitors were more effective.
The authors are to be complimented on this important addition to the literature but the reader should not conclude that H2-receptor antagonists and proton pump inhibitors are equivalent in preventing recurrent bleeding from aspirin-induced ulcers.
Nimish Vakil, MD, AGAF, is clinical professor of medicine at the University of Wisconsin–Madison. He has consulted for Ironwood and AstraZeneca.
Among patients on low-dose aspirin at risk for recurrent GI bleeding, there were slightly fewer GI bleeds or ulcers when patients were on the proton pump inhibitor rabeprazole (Aciphex) instead of the histamine2-receptor antagonist famotidine (Pepcid), but the difference was not statistically significant according to a study reported in the January issue of Gastroenterology.
SOURCE: American Gastroenterological Association
In a 270-subject, double-blind, randomized trial in Hong Kong and Japan led by Francis Chan, MD, of the Chinese University of Hong Kong, investigators found, “Among high-risk aspirin users, the incidence of recurrent bleeding is comparable with either use of PPI [proton pump inhibitor] or H2RA [H2-receptor antagonist].” However, “since a small difference in efficacy cannot be excluded, PPI probably remains the preferred treatment for long-term protection against upper GI bleeding in high-risk aspirin users” (Gastroenterology. 2016 Sep 15. doi: 10.1053/j.gastro.2016.09.006).
Even so, “our findings suggest that famotidine may be a reasonable alternative option for aspirin users who disfavor long-term PPI therapy,” they said.
Because of concerns about the long-term safety of PPIs, including the association between PPIs and increased risk of serious cardiovascular events in patients on clopidogrel (Plavix), clinicians have been looking for alternatives. The findings reassure that H2RAs are a reasonable choice; many clinicians have already turned to them.
All 270 subjects had previously had endoscopically confirmed ulcer bleeding while on low-dose aspirin (325 mg or less per day). “Considering clinicians will be most concerned with the adequacy of gastroprotective treatment effect in aspirin users with the highest risk, we exclusively enrolled patients with endoscopy-proven upper GI bleeding,” Dr. Chan and his colleagues said.
After the ulcers healed, the subjects resumed aspirin (80 mg) daily and were randomized to either famotidine 40 mg once daily (n = 132) or rabeprazole 20 mg daily (n = 138) for up to 12 months. Helicobacter pylori was eradicated prior to randomization in patients who tested positive. Subjects were evaluated every 2 months, with repeat endoscopy for symptoms of upper GI bleeding or significant drops in hemoglobin, as well as at the end of the study.
During the 12-month study period, upper GI bleeding recurred in one patient receiving rabeprazole (0.7%) and four receiving famotidine (3.1%; P = .16). The composite endpoint of recurrent bleeding or endoscopic ulcers at month 12 was reached by nine patients in the rabeprazole group (7.9%) and 13 receiving famotidine (12.4%; P = .26).
“Our findings indicate that both treatments are comparable in preventing recurrent upper GI bleeding in high-risk aspirin users, although a small difference in efficacy cannot be excluded,” the investigators said.
Over two-thirds of the subjects were men, and the mean age was 73 years. About a quarter in the PPI group and almost 40% in the H2RA group had H. pylori cleared before randomization.
The Research Grant Council of Hong Kong funded the work. Dr. Chan has served as a consultant to Pfizer, Eisai, Takeda, and Otsuka, and has received research grants from Pfizer and lecture fees from Pfizer, AstraZeneca, and Takeda. Several other authors reported similar industry disclosures.
Among patients on low-dose aspirin at risk for recurrent GI bleeding, there were slightly fewer GI bleeds or ulcers when patients were on the proton pump inhibitor rabeprazole (Aciphex) instead of the histamine2-receptor antagonist famotidine (Pepcid), but the difference was not statistically significant according to a study reported in the January issue of Gastroenterology.
SOURCE: American Gastroenterological Association
In a 270-subject, double-blind, randomized trial in Hong Kong and Japan led by Francis Chan, MD, of the Chinese University of Hong Kong, investigators found, “Among high-risk aspirin users, the incidence of recurrent bleeding is comparable with either use of PPI [proton pump inhibitor] or H2RA [H2-receptor antagonist].” However, “since a small difference in efficacy cannot be excluded, PPI probably remains the preferred treatment for long-term protection against upper GI bleeding in high-risk aspirin users” (Gastroenterology. 2016 Sep 15. doi: 10.1053/j.gastro.2016.09.006).
Even so, “our findings suggest that famotidine may be a reasonable alternative option for aspirin users who disfavor long-term PPI therapy,” they said.
Because of concerns about the long-term safety of PPIs, including the association between PPIs and increased risk of serious cardiovascular events in patients on clopidogrel (Plavix), clinicians have been looking for alternatives. The findings reassure that H2RAs are a reasonable choice; many clinicians have already turned to them.
All 270 subjects had previously had endoscopically confirmed ulcer bleeding while on low-dose aspirin (325 mg or less per day). “Considering clinicians will be most concerned with the adequacy of gastroprotective treatment effect in aspirin users with the highest risk, we exclusively enrolled patients with endoscopy-proven upper GI bleeding,” Dr. Chan and his colleagues said.
After the ulcers healed, the subjects resumed aspirin (80 mg) daily and were randomized to either famotidine 40 mg once daily (n = 132) or rabeprazole 20 mg daily (n = 138) for up to 12 months. Helicobacter pylori was eradicated prior to randomization in patients who tested positive. Subjects were evaluated every 2 months, with repeat endoscopy for symptoms of upper GI bleeding or significant drops in hemoglobin, as well as at the end of the study.
During the 12-month study period, upper GI bleeding recurred in one patient receiving rabeprazole (0.7%) and four receiving famotidine (3.1%; P = .16). The composite endpoint of recurrent bleeding or endoscopic ulcers at month 12 was reached by nine patients in the rabeprazole group (7.9%) and 13 receiving famotidine (12.4%; P = .26).
“Our findings indicate that both treatments are comparable in preventing recurrent upper GI bleeding in high-risk aspirin users, although a small difference in efficacy cannot be excluded,” the investigators said.
Over two-thirds of the subjects were men, and the mean age was 73 years. About a quarter in the PPI group and almost 40% in the H2RA group had H. pylori cleared before randomization.
The Research Grant Council of Hong Kong funded the work. Dr. Chan has served as a consultant to Pfizer, Eisai, Takeda, and Otsuka, and has received research grants from Pfizer and lecture fees from Pfizer, AstraZeneca, and Takeda. Several other authors reported similar industry disclosures.
FROM GASTROENTEROLOGY
Key clinical point:
Major finding: During the 12-month study period, upper GI bleeding recurred in one patient receiving rabeprazole (0.7%) and four receiving famotidine (3.1%; P = .16). The composite endpoint of recurrent bleeding or endoscopic ulcers at month 12 was reached by nine patients in the rabeprazole group (7.9%) and 13 receiving famotidine (12.4%; P = .26).
Data source: A 270-subject, double-blind, randomized trial in Hong Kong and Japan.
Disclosures: The Research Grant Council of Hong Kong funded the work. The lead investigator has served as a consultant to Pfizer, Eisai, Takeda, and Otsuka, and has received research grants from Pfizer and lecture fees from Pfizer, AstraZeneca, and Takeda. Several other authors reported similar industry disclosures.