Jennie Smith

High consumption of ultraprocessed foods increases the risk of developing Crohn’s disease, according to results from a large meta-analysis, but not ulcerative colitis.

Ultraprocessed foods contain large amounts of artificial flavors, stabilizers, emulsifiers, sweeteners, or preservatives. Studies have linked higher consumption of them to cardiovascular disease, diabetes, obesity, and cancers.

For their research, published in Clinical Gastroenterology and Hepatology, Neeraj Nerula, MD of McMaster University, Hamilton, Ont., and colleagues pooled data from five recent cohort studies to assess whether their consumption was also linked to inflammatory bowel disease.

The included cohort studies together enrolled more than 1 million participants (mean age, 43-56; 55%-85% female). Of these, 916 developed Crohn’s disease, and 1,934 developed ulcerative colitis, during follow-up. None of the participants had IBD at baseline, and all were followed up at least 1 year. All the studies used the same food classification system, called NOVA, to assess foods eaten, and all were conducted between 2020 and 2022.

People who consumed more ultraprocessed foods saw higher Crohn’s risk, compared with those classed as consuming lower amounts of these foods (hazard ratio, 1.71; 95% confidence interval, 1.37-2.14). Also, lower risk of Crohn’s was observed among participants who consumed more unprocessed or minimally processed foods, such as vegetables, chicken, milk, and eggs (HR, 0.71; 95% CI, 0.53-0.94). The same associations were not seen for ulcerative colitis.

“Our findings support the hypothesis that consumption of [ultraprocessed foods] and low consumption of unprocessed/minimally processed foods may increase the risk for CD,” Dr. Nerula and colleagues wrote. The lack of association seen with ulcerative colitis might be explained by differences in the pathogenesis of each disease.

Ultraprocessed foods might contribute to Crohn’s by disrupting gut microbiota, the authors wrote. “For instance, emulsifiers have been shown to increase epithelial permeability, disruption of the intestinal barrier, and gut dysbiosis in mice. Carboxymethyl cellulose has been shown to facilitate bacterial adherence to gut epithelium, possibly leading to bacterial overgrowth and invasion of bacteria in between the intestinal villi. Furthermore, additives such as carrageenan, titanium dioxide, and maltodextrin have been shown to promote intestinal inflammation.”

Dr. Nerula and colleagues described as strengths of their study its large size, the low heterogenicity of the included studies, and the use of validated, standardized questionnaires to measure dietary intake in each study. Nonetheless, they cautioned, the results might not apply to younger age groups, and the majority of participants were White North Americans and Europeans, making it difficult to generalize results.

“Advancements in food processing and associated changes in dietary patterns could explain the rise of IBD incidence during the 20th and 21st centuries,” Dr. Narula and colleagues concluded. “Further investigations are needed to identify the specific potential culprits among processed foods that could account for the increased risk of CD observed.”

The study authors did not report outside funding. Dr. Narula disclosed receiving fees from pharmaceutical manufacturers including Janssen, AbbVie, Takeda, Pfizer, Merck, and others. Two of coauthors also disclosed receiving funds from industry, and five additional coauthors had no conflicts.

High consumption of ultraprocessed foods increases the risk of developing Crohn’s disease, according to results from a large meta-analysis, but not ulcerative colitis.

Ultraprocessed foods contain large amounts of artificial flavors, stabilizers, emulsifiers, sweeteners, or preservatives. Studies have linked higher consumption of them to cardiovascular disease, diabetes, obesity, and cancers.

For their research, published in Clinical Gastroenterology and Hepatology, Neeraj Nerula, MD of McMaster University, Hamilton, Ont., and colleagues pooled data from five recent cohort studies to assess whether their consumption was also linked to inflammatory bowel disease.

The included cohort studies together enrolled more than 1 million participants (mean age, 43-56; 55%-85% female). Of these, 916 developed Crohn’s disease, and 1,934 developed ulcerative colitis, during follow-up. None of the participants had IBD at baseline, and all were followed up at least 1 year. All the studies used the same food classification system, called NOVA, to assess foods eaten, and all were conducted between 2020 and 2022.

People who consumed more ultraprocessed foods saw higher Crohn’s risk, compared with those classed as consuming lower amounts of these foods (hazard ratio, 1.71; 95% confidence interval, 1.37-2.14). Also, lower risk of Crohn’s was observed among participants who consumed more unprocessed or minimally processed foods, such as vegetables, chicken, milk, and eggs (HR, 0.71; 95% CI, 0.53-0.94). The same associations were not seen for ulcerative colitis.

“Our findings support the hypothesis that consumption of [ultraprocessed foods] and low consumption of unprocessed/minimally processed foods may increase the risk for CD,” Dr. Nerula and colleagues wrote. The lack of association seen with ulcerative colitis might be explained by differences in the pathogenesis of each disease.

Ultraprocessed foods might contribute to Crohn’s by disrupting gut microbiota, the authors wrote. “For instance, emulsifiers have been shown to increase epithelial permeability, disruption of the intestinal barrier, and gut dysbiosis in mice. Carboxymethyl cellulose has been shown to facilitate bacterial adherence to gut epithelium, possibly leading to bacterial overgrowth and invasion of bacteria in between the intestinal villi. Furthermore, additives such as carrageenan, titanium dioxide, and maltodextrin have been shown to promote intestinal inflammation.”

Dr. Nerula and colleagues described as strengths of their study its large size, the low heterogenicity of the included studies, and the use of validated, standardized questionnaires to measure dietary intake in each study. Nonetheless, they cautioned, the results might not apply to younger age groups, and the majority of participants were White North Americans and Europeans, making it difficult to generalize results.

“Advancements in food processing and associated changes in dietary patterns could explain the rise of IBD incidence during the 20th and 21st centuries,” Dr. Narula and colleagues concluded. “Further investigations are needed to identify the specific potential culprits among processed foods that could account for the increased risk of CD observed.”

The study authors did not report outside funding. Dr. Narula disclosed receiving fees from pharmaceutical manufacturers including Janssen, AbbVie, Takeda, Pfizer, Merck, and others. Two of coauthors also disclosed receiving funds from industry, and five additional coauthors had no conflicts.

High consumption of ultraprocessed foods increases the risk of developing Crohn’s disease, according to results from a large meta-analysis, but not ulcerative colitis.

Ultraprocessed foods contain large amounts of artificial flavors, stabilizers, emulsifiers, sweeteners, or preservatives. Studies have linked higher consumption of them to cardiovascular disease, diabetes, obesity, and cancers.

For their research, published in Clinical Gastroenterology and Hepatology, Neeraj Nerula, MD of McMaster University, Hamilton, Ont., and colleagues pooled data from five recent cohort studies to assess whether their consumption was also linked to inflammatory bowel disease.

The included cohort studies together enrolled more than 1 million participants (mean age, 43-56; 55%-85% female). Of these, 916 developed Crohn’s disease, and 1,934 developed ulcerative colitis, during follow-up. None of the participants had IBD at baseline, and all were followed up at least 1 year. All the studies used the same food classification system, called NOVA, to assess foods eaten, and all were conducted between 2020 and 2022.

People who consumed more ultraprocessed foods saw higher Crohn’s risk, compared with those classed as consuming lower amounts of these foods (hazard ratio, 1.71; 95% confidence interval, 1.37-2.14). Also, lower risk of Crohn’s was observed among participants who consumed more unprocessed or minimally processed foods, such as vegetables, chicken, milk, and eggs (HR, 0.71; 95% CI, 0.53-0.94). The same associations were not seen for ulcerative colitis.

“Our findings support the hypothesis that consumption of [ultraprocessed foods] and low consumption of unprocessed/minimally processed foods may increase the risk for CD,” Dr. Nerula and colleagues wrote. The lack of association seen with ulcerative colitis might be explained by differences in the pathogenesis of each disease.

Ultraprocessed foods might contribute to Crohn’s by disrupting gut microbiota, the authors wrote. “For instance, emulsifiers have been shown to increase epithelial permeability, disruption of the intestinal barrier, and gut dysbiosis in mice. Carboxymethyl cellulose has been shown to facilitate bacterial adherence to gut epithelium, possibly leading to bacterial overgrowth and invasion of bacteria in between the intestinal villi. Furthermore, additives such as carrageenan, titanium dioxide, and maltodextrin have been shown to promote intestinal inflammation.”

Dr. Nerula and colleagues described as strengths of their study its large size, the low heterogenicity of the included studies, and the use of validated, standardized questionnaires to measure dietary intake in each study. Nonetheless, they cautioned, the results might not apply to younger age groups, and the majority of participants were White North Americans and Europeans, making it difficult to generalize results.

“Advancements in food processing and associated changes in dietary patterns could explain the rise of IBD incidence during the 20th and 21st centuries,” Dr. Narula and colleagues concluded. “Further investigations are needed to identify the specific potential culprits among processed foods that could account for the increased risk of CD observed.”

The study authors did not report outside funding. Dr. Narula disclosed receiving fees from pharmaceutical manufacturers including Janssen, AbbVie, Takeda, Pfizer, Merck, and others. Two of coauthors also disclosed receiving funds from industry, and five additional coauthors had no conflicts.

Daily low-dose aspirin increased the risk of intracranial bleeding, including hemorrhagic stroke, by 38% among healthy older people with no history of cardiovascular events, and did not help prevent ischemic stroke, according to results from a large randomized trial.

The findings, published in JAMA Network Open, bolster recommendations published in 2022 by the U.S. Preventive Services Task Force against daily aspirin for primary prevention of stroke in older adults and add to a mounting consensus that it should be avoided in the healthy elderly, for whom bleeding risks outweigh potential benefits.

Stroke was a preplanned secondary outcome of the Aspirin in Reducing Events in the Elderly (ASPREE) trial, which randomized 19,114 community-living people in Australia and the United States (56% women, 91% White) to 100 mg. daily aspirin or placebo. Participants were aged 70 and older, with the exception of U.S. Black and Hispanic individuals, who could be as young as 65. Participants did not have disability or known cardiovascular disease at baseline, and blood pressure was adequately controlled.
 

ASPEE findings

In 2018 the ASPREE authors, led by John McNeil, PhD, of Monash University, Melbourne, published their findings that aspirin did not reduce mortality or cardiovascular events (including stroke) in the same large cohort.

The new analysis, led by Geoffrey Cloud, MB, BS, of Monash University, focuses on stroke and intracranial bleeding outcomes. At 5 years’ follow up, the ASPREE investigators saw no significant reduction in ischemic stroke incidence associated with aspirin (hazard ratio, 0.89; 95% confidence interval, 0.71-1.11), while incidence of all types of intracranial bleeding, including hemorrhagic stroke, was significantly increased (HR, 1.38; 95% CI, 1.03-1.84).

Altogether 108 of participants taking aspirin (1.1%) experienced some form of intracranial bleeding (subdural, extradural, and/or subarachnoid), compared with 79 (0.8%) in the placebo group. Aspirin-treated patients also saw more hemorrhagic stroke (0.5% vs. 0.4%). As the ASPREE investigators had reported in an earlier paper, upper gastrointestinal bleeding occurred in significantly more aspirin-treated patients than those on placebo (HR, 1.87; 95% CI, 1.32-2.66).

“These outcomes may alter the balance of risks and benefits of an antiplatelet drug, especially if given to individuals at low risk in a primary prevention setting. This concern is relevant given the high stroke risk in older individuals, worldwide increases in populations of older individuals, and the importance of evaluating preventive strategies in this age group,” the investigators wrote.

The investigators cited the study’s large size as a strength while noting among its weaknesses that fewer stroke and bleeding events occurred during follow-up than expected, and that not all ischemic stroke events among older participants were thoroughly investigated.
 

Patients need to know their risk

In an interview, Shlee Song, MD, director of the stroke center at Cedars-Sinai, Los Angeles, said that the new ASPREE findings underscore the importance of careful communication with patients and their families, who may be confused about which risk group they belong to and either cease taking aspirin when it is in fact indicated, or take it when it could harm them.

“We need to be clear for our patients whether these results are relevant to them or not,” Dr. Song said. “People with a history of ischemic stroke need to know aspirin therapy is helpful in reducing risk of another stroke.”

Some patients may come to believe that because their stroke occurred a long time ago, they are in a lower-risk group. “But people need to understand that with a history of a heart attack or stroke, you’re always a separate group,” Dr. Song said. “Our job is also surveillance screening – have you had a fall this past year? Have you had a change in bowel movements? The bleeding events seen in ASPREE include bleeding in the head and bleeding in the gut.”

A key issue to stress with patients, Dr. Song said, is blood pressure management. “Patients might take aspirin because a family member had a stroke, without controlling blood pressure first. That could be the perfect storm for a head bleed: uncontrolled hypertension and an antiplatelet agent.”

The ASPREE study was funded by the National Institutes of Health in the United States and Monash University and the Victorian Cancer Agency in Australia. Three coauthors reported receiving funding or fees from drug manufacturers. Dr. Song disclosed no financial conflicts related to her comments.

Daily low-dose aspirin increased the risk of intracranial bleeding, including hemorrhagic stroke, by 38% among healthy older people with no history of cardiovascular events, and did not help prevent ischemic stroke, according to results from a large randomized trial.

The findings, published in JAMA Network Open, bolster recommendations published in 2022 by the U.S. Preventive Services Task Force against daily aspirin for primary prevention of stroke in older adults and add to a mounting consensus that it should be avoided in the healthy elderly, for whom bleeding risks outweigh potential benefits.

Stroke was a preplanned secondary outcome of the Aspirin in Reducing Events in the Elderly (ASPREE) trial, which randomized 19,114 community-living people in Australia and the United States (56% women, 91% White) to 100 mg. daily aspirin or placebo. Participants were aged 70 and older, with the exception of U.S. Black and Hispanic individuals, who could be as young as 65. Participants did not have disability or known cardiovascular disease at baseline, and blood pressure was adequately controlled.
 

ASPEE findings

In 2018 the ASPREE authors, led by John McNeil, PhD, of Monash University, Melbourne, published their findings that aspirin did not reduce mortality or cardiovascular events (including stroke) in the same large cohort.

The new analysis, led by Geoffrey Cloud, MB, BS, of Monash University, focuses on stroke and intracranial bleeding outcomes. At 5 years’ follow up, the ASPREE investigators saw no significant reduction in ischemic stroke incidence associated with aspirin (hazard ratio, 0.89; 95% confidence interval, 0.71-1.11), while incidence of all types of intracranial bleeding, including hemorrhagic stroke, was significantly increased (HR, 1.38; 95% CI, 1.03-1.84).

Altogether 108 of participants taking aspirin (1.1%) experienced some form of intracranial bleeding (subdural, extradural, and/or subarachnoid), compared with 79 (0.8%) in the placebo group. Aspirin-treated patients also saw more hemorrhagic stroke (0.5% vs. 0.4%). As the ASPREE investigators had reported in an earlier paper, upper gastrointestinal bleeding occurred in significantly more aspirin-treated patients than those on placebo (HR, 1.87; 95% CI, 1.32-2.66).

“These outcomes may alter the balance of risks and benefits of an antiplatelet drug, especially if given to individuals at low risk in a primary prevention setting. This concern is relevant given the high stroke risk in older individuals, worldwide increases in populations of older individuals, and the importance of evaluating preventive strategies in this age group,” the investigators wrote.

The investigators cited the study’s large size as a strength while noting among its weaknesses that fewer stroke and bleeding events occurred during follow-up than expected, and that not all ischemic stroke events among older participants were thoroughly investigated.
 

Patients need to know their risk

In an interview, Shlee Song, MD, director of the stroke center at Cedars-Sinai, Los Angeles, said that the new ASPREE findings underscore the importance of careful communication with patients and their families, who may be confused about which risk group they belong to and either cease taking aspirin when it is in fact indicated, or take it when it could harm them.

“We need to be clear for our patients whether these results are relevant to them or not,” Dr. Song said. “People with a history of ischemic stroke need to know aspirin therapy is helpful in reducing risk of another stroke.”

Some patients may come to believe that because their stroke occurred a long time ago, they are in a lower-risk group. “But people need to understand that with a history of a heart attack or stroke, you’re always a separate group,” Dr. Song said. “Our job is also surveillance screening – have you had a fall this past year? Have you had a change in bowel movements? The bleeding events seen in ASPREE include bleeding in the head and bleeding in the gut.”

A key issue to stress with patients, Dr. Song said, is blood pressure management. “Patients might take aspirin because a family member had a stroke, without controlling blood pressure first. That could be the perfect storm for a head bleed: uncontrolled hypertension and an antiplatelet agent.”

The ASPREE study was funded by the National Institutes of Health in the United States and Monash University and the Victorian Cancer Agency in Australia. Three coauthors reported receiving funding or fees from drug manufacturers. Dr. Song disclosed no financial conflicts related to her comments.

Daily low-dose aspirin increased the risk of intracranial bleeding, including hemorrhagic stroke, by 38% among healthy older people with no history of cardiovascular events, and did not help prevent ischemic stroke, according to results from a large randomized trial.

The findings, published in JAMA Network Open, bolster recommendations published in 2022 by the U.S. Preventive Services Task Force against daily aspirin for primary prevention of stroke in older adults and add to a mounting consensus that it should be avoided in the healthy elderly, for whom bleeding risks outweigh potential benefits.

Stroke was a preplanned secondary outcome of the Aspirin in Reducing Events in the Elderly (ASPREE) trial, which randomized 19,114 community-living people in Australia and the United States (56% women, 91% White) to 100 mg. daily aspirin or placebo. Participants were aged 70 and older, with the exception of U.S. Black and Hispanic individuals, who could be as young as 65. Participants did not have disability or known cardiovascular disease at baseline, and blood pressure was adequately controlled.
 

ASPEE findings

In 2018 the ASPREE authors, led by John McNeil, PhD, of Monash University, Melbourne, published their findings that aspirin did not reduce mortality or cardiovascular events (including stroke) in the same large cohort.

The new analysis, led by Geoffrey Cloud, MB, BS, of Monash University, focuses on stroke and intracranial bleeding outcomes. At 5 years’ follow up, the ASPREE investigators saw no significant reduction in ischemic stroke incidence associated with aspirin (hazard ratio, 0.89; 95% confidence interval, 0.71-1.11), while incidence of all types of intracranial bleeding, including hemorrhagic stroke, was significantly increased (HR, 1.38; 95% CI, 1.03-1.84).

Altogether 108 of participants taking aspirin (1.1%) experienced some form of intracranial bleeding (subdural, extradural, and/or subarachnoid), compared with 79 (0.8%) in the placebo group. Aspirin-treated patients also saw more hemorrhagic stroke (0.5% vs. 0.4%). As the ASPREE investigators had reported in an earlier paper, upper gastrointestinal bleeding occurred in significantly more aspirin-treated patients than those on placebo (HR, 1.87; 95% CI, 1.32-2.66).

“These outcomes may alter the balance of risks and benefits of an antiplatelet drug, especially if given to individuals at low risk in a primary prevention setting. This concern is relevant given the high stroke risk in older individuals, worldwide increases in populations of older individuals, and the importance of evaluating preventive strategies in this age group,” the investigators wrote.

The investigators cited the study’s large size as a strength while noting among its weaknesses that fewer stroke and bleeding events occurred during follow-up than expected, and that not all ischemic stroke events among older participants were thoroughly investigated.
 

Patients need to know their risk

In an interview, Shlee Song, MD, director of the stroke center at Cedars-Sinai, Los Angeles, said that the new ASPREE findings underscore the importance of careful communication with patients and their families, who may be confused about which risk group they belong to and either cease taking aspirin when it is in fact indicated, or take it when it could harm them.

“We need to be clear for our patients whether these results are relevant to them or not,” Dr. Song said. “People with a history of ischemic stroke need to know aspirin therapy is helpful in reducing risk of another stroke.”

Some patients may come to believe that because their stroke occurred a long time ago, they are in a lower-risk group. “But people need to understand that with a history of a heart attack or stroke, you’re always a separate group,” Dr. Song said. “Our job is also surveillance screening – have you had a fall this past year? Have you had a change in bowel movements? The bleeding events seen in ASPREE include bleeding in the head and bleeding in the gut.”

A key issue to stress with patients, Dr. Song said, is blood pressure management. “Patients might take aspirin because a family member had a stroke, without controlling blood pressure first. That could be the perfect storm for a head bleed: uncontrolled hypertension and an antiplatelet agent.”

The ASPREE study was funded by the National Institutes of Health in the United States and Monash University and the Victorian Cancer Agency in Australia. Three coauthors reported receiving funding or fees from drug manufacturers. Dr. Song disclosed no financial conflicts related to her comments.

Nonalcoholic fatty liver disease will now be called metabolic dysfunction–associated steatotic liver disease, or MASLD, according to new nomenclature adopted by a global consensus panel composed mostly of hepatology researchers and clinicians.

The new nomenclature, published in the journal Hepatology, includes the umbrella term steatotic liver disease, or SLD, which will cover MASLD and MetALD, a term describing people with MASLD who consume more than 140 grams of alcohol per week for women and 210 grams per week for men.

Metabolic dysfunction–associated steatohepatitis, or MASH, will replace the term nonalcoholic steatohepatitis, or NASH.

Mary E. Rinella, MD, of University of Chicago Medicine led the consensus group. The changes were needed, Dr. Rinella and her colleagues argued, because the terms “fatty liver disease” “and nonalcoholic” could be considered to confer stigma, and to better reflect the metabolic dysfunction occurring in the disease. Under the new nomenclature, people with MASLD must have a cardiometabolic risk factor, such as type 2 diabetes. People without metabolic parameters and no known cause will be classed as having cryptogenic SLD.

While the new nomenclature largely conserves existing disease definitions, it allows for alcohol consumption beyond current parameters for nonalcoholic forms of the disease. “There are individuals with risk factors for NAFLD, such as type 2 diabetes, who consume more alcohol than the relatively strict thresholds used to define the nonalcoholic nature of the disease [and] are excluded from trials and consideration for treatments,” the authors wrote.

Moreover, they wrote, “within MetALD there is a continuum where conceptually the condition can be seen to be MASLD or ALD predominant. This may vary over time within a given individual.”

Respondents overwhelmingly agreed, however, that even moderate alcohol use alters the natural history of the disease and that patients with more than minimal alcohol consumption should be analyzed separately in clinical trials.

The new nomenclature reflects a 3-year effort involving some 236 panelists from 56 countries who participated in several rounds of online surveys using a Delphi process. Pediatricians, gastroenterologists, and endocrinologists also participated as well as some patient advocates. Changes were based on a super-majority of opinion (67% or higher), though the consensus on whether the term “fatty” was stigmatizing never reached that threshold. In early rounds of surveys only 44% of respondents considered the word “fatty” to be stigmatizing, while more considered “nonalcoholic” to be problematic.

“Substantial proportions of the respondents deemed terms such as ‘fatty’ stigmatizing, hence its exclusion as part of any new name,” Dr. Rinella and her colleagues wrote. “Although health care professionals may contend that patients have not reported this previously, this likely reflects in part a failure to ask the question in the first place and the power imbalance in the doctor-patient relationship.” The authors noted that the new terminology may help raise awareness at a time when new therapeutics are in sight and it becomes more important to identify at-risk individuals.

Of concern was whether the new definitions would alter the utility of earlier data from registries and trials. However, the authors determined that some 98% of people registered in a European NAFLD cohort would meet the new criteria for MASLD. “Maintenance of the term, and clinical definition, of steatohepatitis ensures retention and validity of prior data from clinical trials and biomarker discovery studies of patients with NASH to be generalizable to individuals classified as MASLD or MASH under the new nomenclature, without impeding the efficiency of research,” they stated.

The effort was spearheaded by three international liver societies: La Asociación Latinoamericana para el Estudio del Hígado, the American Association for the Study of Liver Diseases, and the European Association for the Study of the Liver, as well as the cochairs of the NAFLD Nomenclature Initiative.

Each of the authors disclosed a number of potential conflicts of interest.

Nonalcoholic fatty liver disease will now be called metabolic dysfunction–associated steatotic liver disease, or MASLD, according to new nomenclature adopted by a global consensus panel composed mostly of hepatology researchers and clinicians.

The new nomenclature, published in the journal Hepatology, includes the umbrella term steatotic liver disease, or SLD, which will cover MASLD and MetALD, a term describing people with MASLD who consume more than 140 grams of alcohol per week for women and 210 grams per week for men.

Metabolic dysfunction–associated steatohepatitis, or MASH, will replace the term nonalcoholic steatohepatitis, or NASH.

Mary E. Rinella, MD, of University of Chicago Medicine led the consensus group. The changes were needed, Dr. Rinella and her colleagues argued, because the terms “fatty liver disease” “and nonalcoholic” could be considered to confer stigma, and to better reflect the metabolic dysfunction occurring in the disease. Under the new nomenclature, people with MASLD must have a cardiometabolic risk factor, such as type 2 diabetes. People without metabolic parameters and no known cause will be classed as having cryptogenic SLD.

While the new nomenclature largely conserves existing disease definitions, it allows for alcohol consumption beyond current parameters for nonalcoholic forms of the disease. “There are individuals with risk factors for NAFLD, such as type 2 diabetes, who consume more alcohol than the relatively strict thresholds used to define the nonalcoholic nature of the disease [and] are excluded from trials and consideration for treatments,” the authors wrote.

Moreover, they wrote, “within MetALD there is a continuum where conceptually the condition can be seen to be MASLD or ALD predominant. This may vary over time within a given individual.”

Respondents overwhelmingly agreed, however, that even moderate alcohol use alters the natural history of the disease and that patients with more than minimal alcohol consumption should be analyzed separately in clinical trials.

The new nomenclature reflects a 3-year effort involving some 236 panelists from 56 countries who participated in several rounds of online surveys using a Delphi process. Pediatricians, gastroenterologists, and endocrinologists also participated as well as some patient advocates. Changes were based on a super-majority of opinion (67% or higher), though the consensus on whether the term “fatty” was stigmatizing never reached that threshold. In early rounds of surveys only 44% of respondents considered the word “fatty” to be stigmatizing, while more considered “nonalcoholic” to be problematic.

“Substantial proportions of the respondents deemed terms such as ‘fatty’ stigmatizing, hence its exclusion as part of any new name,” Dr. Rinella and her colleagues wrote. “Although health care professionals may contend that patients have not reported this previously, this likely reflects in part a failure to ask the question in the first place and the power imbalance in the doctor-patient relationship.” The authors noted that the new terminology may help raise awareness at a time when new therapeutics are in sight and it becomes more important to identify at-risk individuals.

Of concern was whether the new definitions would alter the utility of earlier data from registries and trials. However, the authors determined that some 98% of people registered in a European NAFLD cohort would meet the new criteria for MASLD. “Maintenance of the term, and clinical definition, of steatohepatitis ensures retention and validity of prior data from clinical trials and biomarker discovery studies of patients with NASH to be generalizable to individuals classified as MASLD or MASH under the new nomenclature, without impeding the efficiency of research,” they stated.

The effort was spearheaded by three international liver societies: La Asociación Latinoamericana para el Estudio del Hígado, the American Association for the Study of Liver Diseases, and the European Association for the Study of the Liver, as well as the cochairs of the NAFLD Nomenclature Initiative.

Each of the authors disclosed a number of potential conflicts of interest.

Nonalcoholic fatty liver disease will now be called metabolic dysfunction–associated steatotic liver disease, or MASLD, according to new nomenclature adopted by a global consensus panel composed mostly of hepatology researchers and clinicians.

The new nomenclature, published in the journal Hepatology, includes the umbrella term steatotic liver disease, or SLD, which will cover MASLD and MetALD, a term describing people with MASLD who consume more than 140 grams of alcohol per week for women and 210 grams per week for men.

Metabolic dysfunction–associated steatohepatitis, or MASH, will replace the term nonalcoholic steatohepatitis, or NASH.

Mary E. Rinella, MD, of University of Chicago Medicine led the consensus group. The changes were needed, Dr. Rinella and her colleagues argued, because the terms “fatty liver disease” “and nonalcoholic” could be considered to confer stigma, and to better reflect the metabolic dysfunction occurring in the disease. Under the new nomenclature, people with MASLD must have a cardiometabolic risk factor, such as type 2 diabetes. People without metabolic parameters and no known cause will be classed as having cryptogenic SLD.

While the new nomenclature largely conserves existing disease definitions, it allows for alcohol consumption beyond current parameters for nonalcoholic forms of the disease. “There are individuals with risk factors for NAFLD, such as type 2 diabetes, who consume more alcohol than the relatively strict thresholds used to define the nonalcoholic nature of the disease [and] are excluded from trials and consideration for treatments,” the authors wrote.

Moreover, they wrote, “within MetALD there is a continuum where conceptually the condition can be seen to be MASLD or ALD predominant. This may vary over time within a given individual.”

Respondents overwhelmingly agreed, however, that even moderate alcohol use alters the natural history of the disease and that patients with more than minimal alcohol consumption should be analyzed separately in clinical trials.

The new nomenclature reflects a 3-year effort involving some 236 panelists from 56 countries who participated in several rounds of online surveys using a Delphi process. Pediatricians, gastroenterologists, and endocrinologists also participated as well as some patient advocates. Changes were based on a super-majority of opinion (67% or higher), though the consensus on whether the term “fatty” was stigmatizing never reached that threshold. In early rounds of surveys only 44% of respondents considered the word “fatty” to be stigmatizing, while more considered “nonalcoholic” to be problematic.

“Substantial proportions of the respondents deemed terms such as ‘fatty’ stigmatizing, hence its exclusion as part of any new name,” Dr. Rinella and her colleagues wrote. “Although health care professionals may contend that patients have not reported this previously, this likely reflects in part a failure to ask the question in the first place and the power imbalance in the doctor-patient relationship.” The authors noted that the new terminology may help raise awareness at a time when new therapeutics are in sight and it becomes more important to identify at-risk individuals.

Of concern was whether the new definitions would alter the utility of earlier data from registries and trials. However, the authors determined that some 98% of people registered in a European NAFLD cohort would meet the new criteria for MASLD. “Maintenance of the term, and clinical definition, of steatohepatitis ensures retention and validity of prior data from clinical trials and biomarker discovery studies of patients with NASH to be generalizable to individuals classified as MASLD or MASH under the new nomenclature, without impeding the efficiency of research,” they stated.

The effort was spearheaded by three international liver societies: La Asociación Latinoamericana para el Estudio del Hígado, the American Association for the Study of Liver Diseases, and the European Association for the Study of the Liver, as well as the cochairs of the NAFLD Nomenclature Initiative.

Each of the authors disclosed a number of potential conflicts of interest.

Patients with head and neck cancer and overweight saw better treatment response and survival after chemoradiation, compared with patients with the same type of cancer but a normal weight, a new study finds.

The findings, published in JAMA Network Open, are the latest to parse the complex relationship between body mass index (BMI) and treatment in cancers that is sometimes called the “obesity paradox.” The researchers compared outcomes among patients with normal weight, overweight, and obesity.

While higher BMI is an established risk factor for many types of cancer and for cancer-specific mortality overall, studies in some cancers have shown that patients with higher BMI do better, possibly because excess BMI acts as a nutrient reserve against treatment-associated weight loss.
 

Methods and results

For their research, Sung Jun Ma, MD, of Roswell Park Comprehensive Cancer Center, Buffalo, N.Y., and colleagues looked at records for 445 patients (84% men, median age 61) at Dr. Ma’s institution with nonmetastatic head and neck cancer who underwent chemoradiotherapy between 2005 and 2021. Patients were followed up for a median 48 months, and those with underweight at treatment initiation were excluded.

The researchers found that overweight BMI (25-29.9 kg/m²) was associated with improved overall survival at 5 years (71% vs. 58% of patients with normal weight), as well as 5-year progression-free survival (68% vs. 51%). No overall or progression-free survival benefit link was seen in patients with a BMI of 30 or higher, in contrast to some previous studies of patients with head and neck cancers. BMI was not associated with improved survival outcomes among human papillomavirus–positive patients.

Both overweight and obesity were associated with complete response on follow-up PET-CT, with nearly 92% of patients with overweight and 91% of patients with obesity (defined as having a BMI of 30 or higher) seeing a complete metabolic response, compared with 74% of patients with normal weight.

Having an overweight BMI was also associated with improvements in tumor recurrence, with fewer of patients with this type of BMI experiencing 5-year locoregional failure than patients with normal weight (7% vs 26%). Having an obese BMI was not associated with improvements in recurrence. All the reported differences reached statistical significance.

The study authors surmised that the discrepancies between outcomes for patients with overweight and obesity “may be due to a nonlinear association between BMI and survival, with the highest survival seen in the overweight BMI range.”

It was important to note that this study saw no differences in treatment interruptions between the BMI groups that could account for differences in outcomes. Only three patients in the cohort saw their radiotherapy treatment interrupted, Dr. Ma said in an interview.

“If we felt that the obesity paradox happens because people with normal BMI lose too much weight during the treatment course, treatment gets interrupted, and they get worse outcomes from suboptimal treatments, then we would have seen more treatment interruptions among those with normal BMI. However, that was not the case in our study,” he said. Rather, the results point to “a complex interaction among cancer, [a person’s build], and nutritional status.”

Clinicians should be aware, Dr. Ma added, “that the same head and neck cancer may behave more aggressively among patients with normal BMI, compared to others with overweight BMI. Patients with normal BMI may need to be monitored more closely and carefully for potentially worse outcomes.” 

The investigators acknowledged several weaknesses of their study, including its retrospective design, the measure of BMI using cutoffs rather than a continuum, and the collection of BMI information at a single time point. While 84% of patients in the study received cisplatin, the study did not contain information on cumulative cisplatin dose.
 

Importance of nutritional support during treatment highlighted

In an interview, Ari Rosenberg, MD, of the University of Chicago Medicine, commented that the findings highlighted the importance of expert nutritional supportive care during treatment and monitoring for patients with advanced head and neck cancers undergoing chemoradiation.

“Nutritional status is very important both at baseline and during treatment,” Dr. Rosenberg said. “Even small changes in weight or BMI can be a key indicator of supportive care during chemoradiation and represent a biomarker to guide supportive management. ... The take home message is that patients should be treated at centers that have a high volume of advanced head and neck cancer patients, which have all the supportive components and expertise to optimize treatment delivery and maximize survival.”

Dr. Ma and colleagues’ study was funded by the National Cancer Institute Cancer Center. None of its authors declared financial conflicts of interest. Dr. Rosenberg disclosed receiving consulting fees from EMD Serono related to head and neck cancer treatment.
 

Patients with head and neck cancer and overweight saw better treatment response and survival after chemoradiation, compared with patients with the same type of cancer but a normal weight, a new study finds.

The findings, published in JAMA Network Open, are the latest to parse the complex relationship between body mass index (BMI) and treatment in cancers that is sometimes called the “obesity paradox.” The researchers compared outcomes among patients with normal weight, overweight, and obesity.

While higher BMI is an established risk factor for many types of cancer and for cancer-specific mortality overall, studies in some cancers have shown that patients with higher BMI do better, possibly because excess BMI acts as a nutrient reserve against treatment-associated weight loss.
 

Methods and results

For their research, Sung Jun Ma, MD, of Roswell Park Comprehensive Cancer Center, Buffalo, N.Y., and colleagues looked at records for 445 patients (84% men, median age 61) at Dr. Ma’s institution with nonmetastatic head and neck cancer who underwent chemoradiotherapy between 2005 and 2021. Patients were followed up for a median 48 months, and those with underweight at treatment initiation were excluded.

The researchers found that overweight BMI (25-29.9 kg/m²) was associated with improved overall survival at 5 years (71% vs. 58% of patients with normal weight), as well as 5-year progression-free survival (68% vs. 51%). No overall or progression-free survival benefit link was seen in patients with a BMI of 30 or higher, in contrast to some previous studies of patients with head and neck cancers. BMI was not associated with improved survival outcomes among human papillomavirus–positive patients.

Both overweight and obesity were associated with complete response on follow-up PET-CT, with nearly 92% of patients with overweight and 91% of patients with obesity (defined as having a BMI of 30 or higher) seeing a complete metabolic response, compared with 74% of patients with normal weight.

Having an overweight BMI was also associated with improvements in tumor recurrence, with fewer of patients with this type of BMI experiencing 5-year locoregional failure than patients with normal weight (7% vs 26%). Having an obese BMI was not associated with improvements in recurrence. All the reported differences reached statistical significance.

The study authors surmised that the discrepancies between outcomes for patients with overweight and obesity “may be due to a nonlinear association between BMI and survival, with the highest survival seen in the overweight BMI range.”

It was important to note that this study saw no differences in treatment interruptions between the BMI groups that could account for differences in outcomes. Only three patients in the cohort saw their radiotherapy treatment interrupted, Dr. Ma said in an interview.

“If we felt that the obesity paradox happens because people with normal BMI lose too much weight during the treatment course, treatment gets interrupted, and they get worse outcomes from suboptimal treatments, then we would have seen more treatment interruptions among those with normal BMI. However, that was not the case in our study,” he said. Rather, the results point to “a complex interaction among cancer, [a person’s build], and nutritional status.”

Clinicians should be aware, Dr. Ma added, “that the same head and neck cancer may behave more aggressively among patients with normal BMI, compared to others with overweight BMI. Patients with normal BMI may need to be monitored more closely and carefully for potentially worse outcomes.” 

The investigators acknowledged several weaknesses of their study, including its retrospective design, the measure of BMI using cutoffs rather than a continuum, and the collection of BMI information at a single time point. While 84% of patients in the study received cisplatin, the study did not contain information on cumulative cisplatin dose.
 

Importance of nutritional support during treatment highlighted

In an interview, Ari Rosenberg, MD, of the University of Chicago Medicine, commented that the findings highlighted the importance of expert nutritional supportive care during treatment and monitoring for patients with advanced head and neck cancers undergoing chemoradiation.

“Nutritional status is very important both at baseline and during treatment,” Dr. Rosenberg said. “Even small changes in weight or BMI can be a key indicator of supportive care during chemoradiation and represent a biomarker to guide supportive management. ... The take home message is that patients should be treated at centers that have a high volume of advanced head and neck cancer patients, which have all the supportive components and expertise to optimize treatment delivery and maximize survival.”

Dr. Ma and colleagues’ study was funded by the National Cancer Institute Cancer Center. None of its authors declared financial conflicts of interest. Dr. Rosenberg disclosed receiving consulting fees from EMD Serono related to head and neck cancer treatment.
 

Patients with head and neck cancer and overweight saw better treatment response and survival after chemoradiation, compared with patients with the same type of cancer but a normal weight, a new study finds.

The findings, published in JAMA Network Open, are the latest to parse the complex relationship between body mass index (BMI) and treatment in cancers that is sometimes called the “obesity paradox.” The researchers compared outcomes among patients with normal weight, overweight, and obesity.

While higher BMI is an established risk factor for many types of cancer and for cancer-specific mortality overall, studies in some cancers have shown that patients with higher BMI do better, possibly because excess BMI acts as a nutrient reserve against treatment-associated weight loss.
 

Methods and results

For their research, Sung Jun Ma, MD, of Roswell Park Comprehensive Cancer Center, Buffalo, N.Y., and colleagues looked at records for 445 patients (84% men, median age 61) at Dr. Ma’s institution with nonmetastatic head and neck cancer who underwent chemoradiotherapy between 2005 and 2021. Patients were followed up for a median 48 months, and those with underweight at treatment initiation were excluded.

The researchers found that overweight BMI (25-29.9 kg/m²) was associated with improved overall survival at 5 years (71% vs. 58% of patients with normal weight), as well as 5-year progression-free survival (68% vs. 51%). No overall or progression-free survival benefit link was seen in patients with a BMI of 30 or higher, in contrast to some previous studies of patients with head and neck cancers. BMI was not associated with improved survival outcomes among human papillomavirus–positive patients.

Both overweight and obesity were associated with complete response on follow-up PET-CT, with nearly 92% of patients with overweight and 91% of patients with obesity (defined as having a BMI of 30 or higher) seeing a complete metabolic response, compared with 74% of patients with normal weight.

Having an overweight BMI was also associated with improvements in tumor recurrence, with fewer of patients with this type of BMI experiencing 5-year locoregional failure than patients with normal weight (7% vs 26%). Having an obese BMI was not associated with improvements in recurrence. All the reported differences reached statistical significance.

The study authors surmised that the discrepancies between outcomes for patients with overweight and obesity “may be due to a nonlinear association between BMI and survival, with the highest survival seen in the overweight BMI range.”

It was important to note that this study saw no differences in treatment interruptions between the BMI groups that could account for differences in outcomes. Only three patients in the cohort saw their radiotherapy treatment interrupted, Dr. Ma said in an interview.

“If we felt that the obesity paradox happens because people with normal BMI lose too much weight during the treatment course, treatment gets interrupted, and they get worse outcomes from suboptimal treatments, then we would have seen more treatment interruptions among those with normal BMI. However, that was not the case in our study,” he said. Rather, the results point to “a complex interaction among cancer, [a person’s build], and nutritional status.”

Clinicians should be aware, Dr. Ma added, “that the same head and neck cancer may behave more aggressively among patients with normal BMI, compared to others with overweight BMI. Patients with normal BMI may need to be monitored more closely and carefully for potentially worse outcomes.” 

The investigators acknowledged several weaknesses of their study, including its retrospective design, the measure of BMI using cutoffs rather than a continuum, and the collection of BMI information at a single time point. While 84% of patients in the study received cisplatin, the study did not contain information on cumulative cisplatin dose.
 

Importance of nutritional support during treatment highlighted

In an interview, Ari Rosenberg, MD, of the University of Chicago Medicine, commented that the findings highlighted the importance of expert nutritional supportive care during treatment and monitoring for patients with advanced head and neck cancers undergoing chemoradiation.

“Nutritional status is very important both at baseline and during treatment,” Dr. Rosenberg said. “Even small changes in weight or BMI can be a key indicator of supportive care during chemoradiation and represent a biomarker to guide supportive management. ... The take home message is that patients should be treated at centers that have a high volume of advanced head and neck cancer patients, which have all the supportive components and expertise to optimize treatment delivery and maximize survival.”

Dr. Ma and colleagues’ study was funded by the National Cancer Institute Cancer Center. None of its authors declared financial conflicts of interest. Dr. Rosenberg disclosed receiving consulting fees from EMD Serono related to head and neck cancer treatment.
 

The SmartPill, a wireless ingestible capsule containing sensors that monitor pressure, pH, transit time and temperature as it passes through the gastrointestinal tract, is being discontinued, a spokesperson for its manufacturer, Medtronic, confirmed.

In a June 22 email, company representative Oded Cojocaru stated that the decision followed “several months of ongoing challenges with reliable supply of critical components to our SmartPill motility testing system.”

The SmartPill motility testing system’s maturity “means we cannot source an alternative supplier for the specialized components required to manufacture the SmartPill capsules and recorders. As a result, we have made the difficult decision to discontinue global sales,” Mr. Cojocaru said.

Customers have been notified and all sales of the device will be discontinued across all clinical applications when available inventory is exhausted, which is expected to occur in September. Medtronic has no plans to develop an alternative to the device.

Massachusetts General Hospital

Braden Kuo, MD, of Massachusetts General Hospital, Boston, a motility specialist who took part in the SmartPill’s development and testing at various stages, said that Medtronic’s decision to discontinue the device was already known among his GI colleagues, and was the subject of concern as there is no analogous Food and Drug Administration–approved device on the market. 

While the device’s clinical adoption “is not extremely widespread,” Dr. Kuo said, thousands of SmartPills are still used in GI clinics every year, and insurance tends to cover their use, especially in major metropolitan areas.

Originally developed by the SmartPill Corporation of Buffalo, N.Y., the device was first cleared by the FDA in 2006 for the evaluation of colonic transit time in patients with chronic constipation and suspected gastroparesis. Six years later that company was sold to Given Imaging, an Israeli firm making ingestible capsule endoscopy devices with cameras. In 2015, Given Imaging was purchased by Medtronic.

The SmartPill is ingested under clinical supervision, after which a patient can return home and allow the capsule to pass naturally through the body over a period of days. It is used in tandem with proprietary monitoring hardware, software, and a special food product. Known limitations of the device include that it can be difficult for some patients to swallow, and that it can get stuck in the lower digestive tract. Its use is contraindicated in patients with dysphagia, stricture, or bowel obstruction.

“Many motility doctors and some general GI docs find this test helpful,” said Dr. Kuo, who formerly served as a scientific adviser to SmartPill and later ran trials of the technology for Medtronic. It is useful as an alternative to costlier scintigraphy, he said, or to follow up after a negative endoscopy result. 

The SmartPill has also been fruitful for GI research, Dr. Kuo added, because the capsule is easy to administer, compared with nonambulatory ways of studying motility, which limited enrollment. “Now we can do studies with several hundred people, because this is much more easily tolerated, and we’ve made a lot of interesting insights about GI physiology and pathophysiology as a result of this technology.”

During its 17 years on the market, Dr. Kuo said, the SmartPill has helped galvanize interest in other capsule applications, including for drug delivery, imaging and sampling. 

Dr. Jack Semler

Jack Semler, PhD, the former chief technology officer of SmartPill and who alongside Dr. Kuo has coauthored some 40 papers on the SmartPill, said he, too, lamented the decision by Medtronic. “The company has only so many resources to devote to upgrading technology and those resources just aren’t available for this particular product,” he speculated. Nonetheless, Dr. Semler said, “I still feel there is a real untapped potential.”

Dr. Kuo and Dr. Semler both disclosed previous paid work for SmartPill and Medtronic. Both are currently consulting for Atmo Biosciences, a company that is developing a different motility capsule technology.

The SmartPill, a wireless ingestible capsule containing sensors that monitor pressure, pH, transit time and temperature as it passes through the gastrointestinal tract, is being discontinued, a spokesperson for its manufacturer, Medtronic, confirmed.

In a June 22 email, company representative Oded Cojocaru stated that the decision followed “several months of ongoing challenges with reliable supply of critical components to our SmartPill motility testing system.”

The SmartPill motility testing system’s maturity “means we cannot source an alternative supplier for the specialized components required to manufacture the SmartPill capsules and recorders. As a result, we have made the difficult decision to discontinue global sales,” Mr. Cojocaru said.

Customers have been notified and all sales of the device will be discontinued across all clinical applications when available inventory is exhausted, which is expected to occur in September. Medtronic has no plans to develop an alternative to the device.

Massachusetts General Hospital

Braden Kuo, MD, of Massachusetts General Hospital, Boston, a motility specialist who took part in the SmartPill’s development and testing at various stages, said that Medtronic’s decision to discontinue the device was already known among his GI colleagues, and was the subject of concern as there is no analogous Food and Drug Administration–approved device on the market. 

While the device’s clinical adoption “is not extremely widespread,” Dr. Kuo said, thousands of SmartPills are still used in GI clinics every year, and insurance tends to cover their use, especially in major metropolitan areas.

Originally developed by the SmartPill Corporation of Buffalo, N.Y., the device was first cleared by the FDA in 2006 for the evaluation of colonic transit time in patients with chronic constipation and suspected gastroparesis. Six years later that company was sold to Given Imaging, an Israeli firm making ingestible capsule endoscopy devices with cameras. In 2015, Given Imaging was purchased by Medtronic.

The SmartPill is ingested under clinical supervision, after which a patient can return home and allow the capsule to pass naturally through the body over a period of days. It is used in tandem with proprietary monitoring hardware, software, and a special food product. Known limitations of the device include that it can be difficult for some patients to swallow, and that it can get stuck in the lower digestive tract. Its use is contraindicated in patients with dysphagia, stricture, or bowel obstruction.

“Many motility doctors and some general GI docs find this test helpful,” said Dr. Kuo, who formerly served as a scientific adviser to SmartPill and later ran trials of the technology for Medtronic. It is useful as an alternative to costlier scintigraphy, he said, or to follow up after a negative endoscopy result. 

The SmartPill has also been fruitful for GI research, Dr. Kuo added, because the capsule is easy to administer, compared with nonambulatory ways of studying motility, which limited enrollment. “Now we can do studies with several hundred people, because this is much more easily tolerated, and we’ve made a lot of interesting insights about GI physiology and pathophysiology as a result of this technology.”

During its 17 years on the market, Dr. Kuo said, the SmartPill has helped galvanize interest in other capsule applications, including for drug delivery, imaging and sampling. 

Dr. Jack Semler

Jack Semler, PhD, the former chief technology officer of SmartPill and who alongside Dr. Kuo has coauthored some 40 papers on the SmartPill, said he, too, lamented the decision by Medtronic. “The company has only so many resources to devote to upgrading technology and those resources just aren’t available for this particular product,” he speculated. Nonetheless, Dr. Semler said, “I still feel there is a real untapped potential.”

Dr. Kuo and Dr. Semler both disclosed previous paid work for SmartPill and Medtronic. Both are currently consulting for Atmo Biosciences, a company that is developing a different motility capsule technology.

The SmartPill, a wireless ingestible capsule containing sensors that monitor pressure, pH, transit time and temperature as it passes through the gastrointestinal tract, is being discontinued, a spokesperson for its manufacturer, Medtronic, confirmed.

In a June 22 email, company representative Oded Cojocaru stated that the decision followed “several months of ongoing challenges with reliable supply of critical components to our SmartPill motility testing system.”

The SmartPill motility testing system’s maturity “means we cannot source an alternative supplier for the specialized components required to manufacture the SmartPill capsules and recorders. As a result, we have made the difficult decision to discontinue global sales,” Mr. Cojocaru said.

Customers have been notified and all sales of the device will be discontinued across all clinical applications when available inventory is exhausted, which is expected to occur in September. Medtronic has no plans to develop an alternative to the device.

Massachusetts General Hospital

Braden Kuo, MD, of Massachusetts General Hospital, Boston, a motility specialist who took part in the SmartPill’s development and testing at various stages, said that Medtronic’s decision to discontinue the device was already known among his GI colleagues, and was the subject of concern as there is no analogous Food and Drug Administration–approved device on the market. 

While the device’s clinical adoption “is not extremely widespread,” Dr. Kuo said, thousands of SmartPills are still used in GI clinics every year, and insurance tends to cover their use, especially in major metropolitan areas.

Originally developed by the SmartPill Corporation of Buffalo, N.Y., the device was first cleared by the FDA in 2006 for the evaluation of colonic transit time in patients with chronic constipation and suspected gastroparesis. Six years later that company was sold to Given Imaging, an Israeli firm making ingestible capsule endoscopy devices with cameras. In 2015, Given Imaging was purchased by Medtronic.

The SmartPill is ingested under clinical supervision, after which a patient can return home and allow the capsule to pass naturally through the body over a period of days. It is used in tandem with proprietary monitoring hardware, software, and a special food product. Known limitations of the device include that it can be difficult for some patients to swallow, and that it can get stuck in the lower digestive tract. Its use is contraindicated in patients with dysphagia, stricture, or bowel obstruction.

“Many motility doctors and some general GI docs find this test helpful,” said Dr. Kuo, who formerly served as a scientific adviser to SmartPill and later ran trials of the technology for Medtronic. It is useful as an alternative to costlier scintigraphy, he said, or to follow up after a negative endoscopy result. 

The SmartPill has also been fruitful for GI research, Dr. Kuo added, because the capsule is easy to administer, compared with nonambulatory ways of studying motility, which limited enrollment. “Now we can do studies with several hundred people, because this is much more easily tolerated, and we’ve made a lot of interesting insights about GI physiology and pathophysiology as a result of this technology.”

During its 17 years on the market, Dr. Kuo said, the SmartPill has helped galvanize interest in other capsule applications, including for drug delivery, imaging and sampling. 

Dr. Jack Semler

Jack Semler, PhD, the former chief technology officer of SmartPill and who alongside Dr. Kuo has coauthored some 40 papers on the SmartPill, said he, too, lamented the decision by Medtronic. “The company has only so many resources to devote to upgrading technology and those resources just aren’t available for this particular product,” he speculated. Nonetheless, Dr. Semler said, “I still feel there is a real untapped potential.”

Dr. Kuo and Dr. Semler both disclosed previous paid work for SmartPill and Medtronic. Both are currently consulting for Atmo Biosciences, a company that is developing a different motility capsule technology.

While increases in colorectal cancer screening have been linked to drops in disease incidence, marginalized racial and ethnic populations in the United States continue to see lower screening rates along with higher disease incidence and mortality. Disparities in colorectal screening represent a serious public health challenge, say the authors of a new literature review that describes specific areas of concern and recommendations for improvement.

For their research, published in Techniques and Innovations in Gastrointestinal Endoscopy, gastroenterologists Abraham Segura, MD, and Shazia Mehmood Siddique, MD, of the University of Pennsylvania, Philadelphia, sought to identify studies that shed light on ethnicity or race-based differences in screening uptake, as well as known barriers and facilitators to screening.

Significant racial and ethnic disparities can be seen in rates of colonoscopy selection as a screening method, and of screening completion, Dr. Segura and Dr. Siddique noted, with White individuals who chose the method three times more likely to complete screening as Asian, Hispanic, or Black individuals. Disparities were also seen reflected in people’s choice of screening method, with non–English-speaking Hispanic individuals less likely to choose colonoscopy compared with other groups.

Use of stool-based screening methods, such as the fecal occult blood test (FOBT) and fecal immunochemical test (FIT), has risen over time across ethnic and racial groups. However, Hispanic and Asian individuals were more likely to complete and adhere to the FOBT, compared with non-Hispanic White individuals. Follow-up colonoscopy rates after FOBT or FIT also differ along ethnic and racial lines, Dr. Segura and Dr. Siddique noted, with Asian and American Indian groups less likely to complete follow-up after an abnormal result.

The study authors pointed to structural racism at the root of some observed disparities, citing barriers to healthcare access and quality that include higher rates of noninsurance among Black and Hispanic populations and a lower likelihood of the same populations to receive physician counseling regarding screening.

Barriers to economic stability, including living in impoverished neighborhoods, were also cited as contributors to lower colorectal screening. Patients covered by Medicaid were more than twice as likely as non-Medicaid patients to have suboptimal bowel preparation at screening, the authors noted. Access to transportation remained another frequently observed barrier to completing recommended testing and follow-up.

Mistrust of doctors has been linked to lower screening uptake among Black men. “Longstanding conscious and implicit racism, differences in communication, and socioeconomic context ... engender medical mistrust among racial and ethnic groups,” the authors wrote. Reversing it “ultimately requires vast societal change, and we as physicians can facilitate this by encouraging patient-centered discussions that humanize and empower traditionally marginalized populations.”

Dr. Segura and Dr. Siddique described strategies that have been shown to result in better uptake in specific populations, including removing out-of-pocket costs for screening and follow-up, and designing faith-based or culturally specific outreach delivered through churches and local businesses.

They recommended that researchers change how they study the disparities that bear on colorectal screening and outcomes. “Collection and use of data on race and ethnicity must be optimized and standardized to ensure that all groups are adequately captured,” they wrote. Standardizing self-reporting of race and ethnicity would help address issues of misclassification.

The authors also advised designing studies with longer follow-up, noting that “we must better understand the mechanisms of long-term adherence.” Additional research is needed, they said, to evaluate the efficacy of older outreach strategies after societal changes resulting from the COVID-19 pandemic. Efforts to increase the number of Black, Hispanic, Asian, and Alaskan Native/American Indian groups in CRC screening interventions and studies “must be prioritized.”

Dr. Segura’s and Dr. Siddique’s study was funded with grants from the National Institutes of Health. They disclosed no conflicts of interest.
 

While increases in colorectal cancer screening have been linked to drops in disease incidence, marginalized racial and ethnic populations in the United States continue to see lower screening rates along with higher disease incidence and mortality. Disparities in colorectal screening represent a serious public health challenge, say the authors of a new literature review that describes specific areas of concern and recommendations for improvement.

For their research, published in Techniques and Innovations in Gastrointestinal Endoscopy, gastroenterologists Abraham Segura, MD, and Shazia Mehmood Siddique, MD, of the University of Pennsylvania, Philadelphia, sought to identify studies that shed light on ethnicity or race-based differences in screening uptake, as well as known barriers and facilitators to screening.

Significant racial and ethnic disparities can be seen in rates of colonoscopy selection as a screening method, and of screening completion, Dr. Segura and Dr. Siddique noted, with White individuals who chose the method three times more likely to complete screening as Asian, Hispanic, or Black individuals. Disparities were also seen reflected in people’s choice of screening method, with non–English-speaking Hispanic individuals less likely to choose colonoscopy compared with other groups.

Use of stool-based screening methods, such as the fecal occult blood test (FOBT) and fecal immunochemical test (FIT), has risen over time across ethnic and racial groups. However, Hispanic and Asian individuals were more likely to complete and adhere to the FOBT, compared with non-Hispanic White individuals. Follow-up colonoscopy rates after FOBT or FIT also differ along ethnic and racial lines, Dr. Segura and Dr. Siddique noted, with Asian and American Indian groups less likely to complete follow-up after an abnormal result.

The study authors pointed to structural racism at the root of some observed disparities, citing barriers to healthcare access and quality that include higher rates of noninsurance among Black and Hispanic populations and a lower likelihood of the same populations to receive physician counseling regarding screening.

Barriers to economic stability, including living in impoverished neighborhoods, were also cited as contributors to lower colorectal screening. Patients covered by Medicaid were more than twice as likely as non-Medicaid patients to have suboptimal bowel preparation at screening, the authors noted. Access to transportation remained another frequently observed barrier to completing recommended testing and follow-up.

Mistrust of doctors has been linked to lower screening uptake among Black men. “Longstanding conscious and implicit racism, differences in communication, and socioeconomic context ... engender medical mistrust among racial and ethnic groups,” the authors wrote. Reversing it “ultimately requires vast societal change, and we as physicians can facilitate this by encouraging patient-centered discussions that humanize and empower traditionally marginalized populations.”

Dr. Segura and Dr. Siddique described strategies that have been shown to result in better uptake in specific populations, including removing out-of-pocket costs for screening and follow-up, and designing faith-based or culturally specific outreach delivered through churches and local businesses.

They recommended that researchers change how they study the disparities that bear on colorectal screening and outcomes. “Collection and use of data on race and ethnicity must be optimized and standardized to ensure that all groups are adequately captured,” they wrote. Standardizing self-reporting of race and ethnicity would help address issues of misclassification.

The authors also advised designing studies with longer follow-up, noting that “we must better understand the mechanisms of long-term adherence.” Additional research is needed, they said, to evaluate the efficacy of older outreach strategies after societal changes resulting from the COVID-19 pandemic. Efforts to increase the number of Black, Hispanic, Asian, and Alaskan Native/American Indian groups in CRC screening interventions and studies “must be prioritized.”

Dr. Segura’s and Dr. Siddique’s study was funded with grants from the National Institutes of Health. They disclosed no conflicts of interest.
 

While increases in colorectal cancer screening have been linked to drops in disease incidence, marginalized racial and ethnic populations in the United States continue to see lower screening rates along with higher disease incidence and mortality. Disparities in colorectal screening represent a serious public health challenge, say the authors of a new literature review that describes specific areas of concern and recommendations for improvement.

For their research, published in Techniques and Innovations in Gastrointestinal Endoscopy, gastroenterologists Abraham Segura, MD, and Shazia Mehmood Siddique, MD, of the University of Pennsylvania, Philadelphia, sought to identify studies that shed light on ethnicity or race-based differences in screening uptake, as well as known barriers and facilitators to screening.

Significant racial and ethnic disparities can be seen in rates of colonoscopy selection as a screening method, and of screening completion, Dr. Segura and Dr. Siddique noted, with White individuals who chose the method three times more likely to complete screening as Asian, Hispanic, or Black individuals. Disparities were also seen reflected in people’s choice of screening method, with non–English-speaking Hispanic individuals less likely to choose colonoscopy compared with other groups.

Use of stool-based screening methods, such as the fecal occult blood test (FOBT) and fecal immunochemical test (FIT), has risen over time across ethnic and racial groups. However, Hispanic and Asian individuals were more likely to complete and adhere to the FOBT, compared with non-Hispanic White individuals. Follow-up colonoscopy rates after FOBT or FIT also differ along ethnic and racial lines, Dr. Segura and Dr. Siddique noted, with Asian and American Indian groups less likely to complete follow-up after an abnormal result.

The study authors pointed to structural racism at the root of some observed disparities, citing barriers to healthcare access and quality that include higher rates of noninsurance among Black and Hispanic populations and a lower likelihood of the same populations to receive physician counseling regarding screening.

Barriers to economic stability, including living in impoverished neighborhoods, were also cited as contributors to lower colorectal screening. Patients covered by Medicaid were more than twice as likely as non-Medicaid patients to have suboptimal bowel preparation at screening, the authors noted. Access to transportation remained another frequently observed barrier to completing recommended testing and follow-up.

Mistrust of doctors has been linked to lower screening uptake among Black men. “Longstanding conscious and implicit racism, differences in communication, and socioeconomic context ... engender medical mistrust among racial and ethnic groups,” the authors wrote. Reversing it “ultimately requires vast societal change, and we as physicians can facilitate this by encouraging patient-centered discussions that humanize and empower traditionally marginalized populations.”

Dr. Segura and Dr. Siddique described strategies that have been shown to result in better uptake in specific populations, including removing out-of-pocket costs for screening and follow-up, and designing faith-based or culturally specific outreach delivered through churches and local businesses.

They recommended that researchers change how they study the disparities that bear on colorectal screening and outcomes. “Collection and use of data on race and ethnicity must be optimized and standardized to ensure that all groups are adequately captured,” they wrote. Standardizing self-reporting of race and ethnicity would help address issues of misclassification.

The authors also advised designing studies with longer follow-up, noting that “we must better understand the mechanisms of long-term adherence.” Additional research is needed, they said, to evaluate the efficacy of older outreach strategies after societal changes resulting from the COVID-19 pandemic. Efforts to increase the number of Black, Hispanic, Asian, and Alaskan Native/American Indian groups in CRC screening interventions and studies “must be prioritized.”

Dr. Segura’s and Dr. Siddique’s study was funded with grants from the National Institutes of Health. They disclosed no conflicts of interest.
 

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

A version of this article first appeared on Medscape.com.

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

A version of this article first appeared on Medscape.com.

People with nonalcoholic fatty liver disease (NAFLD) are more likely to develop severe infections requiring hospitalization, according to findings from a large Swedish cohort study.

The increased risk was equal to one extra severe infection in every six patients with NAFLD by 20 years after diagnosis, wrote Fahim Ebrahimi, MD, of the Karolinska Institute in Stockholm, and coauthors.

“Accumulating evidence suggests that NAFLD can affect multiple organ systems, which is not surprising, as the liver has multiple functions – regulating metabolism and being a central organ of the immune system,” Dr. Ebrahimi said in an interview.

The study was published online in Clinical Gastroenterology and Hepatology.

“Up to a fifth of cells in the liver are immune cells that process numerous antigens and pathogens from the gastrointestinal tract,” Dr. Ebrahimi noted. “We were intrigued by experimental studies showing that, in NAFLD, many of these key immune cells become dysfunctional at various levels, which may affect disease progression, but at the same time also increase the susceptibility to viral, bacterial, and fungal infections.”

Patients with NAFLD have metabolic risk factors known to increase infection risk, but a smaller study by a different research group had found that NAFLD could independently predispose patients to bacterial infections.

To further explore a connection between NAFLD and infection risk, the researchers looked at data for 12,133 Swedish adults with simple steatosis, nonfibrotic steatohepatitis, noncirrhotic fibrosis, or cirrhosis caused by NAFLD confirmed by liver biopsies performed between 1969 and 2017.

Each patient was matched to five or more contemporary controls from the general population by age, sex, and region of residence. The authors conducted an additional analysis that also adjusted for education, country of birth, and baseline clinical comorbidities, including diabetes, obesity, dyslipidemia, and hypertension, as well as hospitalization preceding the biopsy and chronic obstructive pulmonary disease.

The primary endpoint was severe infections requiring hospital admission. Secondary endpoints included seven prespecified infection subgroups: sepsis; respiratory tract; most gastrointestinal infections; bacterial peritonitis; urogenital; muscle, skin, and soft tissue; and other infections.
 

Elevated risk at all NAFLD stages

Dr. Ebrahimi and colleagues found that over a median follow-up of 14 years, patients with NAFLD had a higher incidence of severe infections – most often respiratory or urinary tract infections – compared with those without NAFLD (32% vs. 17%, respectively).

Biopsy-confirmed NAFLD was also associated with a 71% higher hazard and a 20-year absolute excess risk of 17.3% for severe infections requiring hospital admission versus comparators. The elevated risk showed up in patients with steatosis and increased with the severity of NAFLD. Simple steatosis saw a 64% higher risk (adjusted hazard ratio, 1.64; 95% confidence interval, 1.55-1.73), whereas patients with cirrhosis saw a more than twofold higher risk, compared with controls (aHR, 2.32; 95% CI, 1.92-2.82).

When Dr. Ebrahimi and colleagues adjusted for parameters of the metabolic syndrome, they found an independent increased risk for severe infection. For patients with NAFLD, the increased risk may come from greater susceptibility to infections in general or to a more severe course of infections.

“Our study clearly demonstrates the complexity and high disease burden associated with NAFLD,” Dr. Ebrahimi said. “We are beginning to understand the different layers involved and will eventually move away from a liver-centric view to a more holistic view of the disease.”

Clinicians caring for patients with NAFLD need to be aware of the increased risk for infection, Dr. Ebrahimi said. They also should assess their patients’ vaccination status, and seek to control modifiable risk factors, such as diabetes.

Nancy Reau, MD, of Rush University, Chicago, described the study’s message as important.

“Patients with NAFLD and advancing liver disease are at risk for severe infections,” Dr. Reau said. “When we consider the fact that patients with advanced liver disease tend to die from infectious complications, awareness leading to early recognition and efficient treatment is imperative.”

The authors acknowledged the following limitations: only severe infections requiring hospitalization could be captured; whether infection led to decompensation or vice versa among patients with cirrhosis could not be determined; and detailed data on smoking, alcohol, vaccinations, body mass, and other potentially relevant measures were not available.

The Swiss National Science Foundation, Syskonen Svensson Foundation, and Bengt Ihre Foundation provided grants to Dr. Ebrahimi or coauthors. One coauthor disclosed previous research funding from Janssen and MSD. Dr. Reau disclosed receiving research support and consulting fees from AbbVie and Gilead, as well as consulting fees from Arbutus, Intercept, and Salix.

A version of this article first appeared on Medscape.com.

Treatment-resistant patients with active ulcerative colitis and Crohn’s disease saw high remission rates and fast response after being switched to upadacitinib, according to results from a real-world study at a Chicago treatment center.

The results suggest that upadacitinib may be an appropriate salvage treatment for patients who have failed other advanced therapies, including tofacitinib.

Treatment-resistant patients with active ulcerative colitis and Crohn’s disease saw high remission rates and fast response after being switched to upadacitinib, according to results from a real-world study at a Chicago treatment center.

The results suggest that upadacitinib may be an appropriate salvage treatment for patients who have failed other advanced therapies, including tofacitinib.

Treatment-resistant patients with active ulcerative colitis and Crohn’s disease saw high remission rates and fast response after being switched to upadacitinib, according to results from a real-world study at a Chicago treatment center.

The results suggest that upadacitinib may be an appropriate salvage treatment for patients who have failed other advanced therapies, including tofacitinib.

Expert treatment centers should consider performing certain endoscopic ultrasound (EUS)-guided vascular interventions with current levels of supporting evidence, according to a practice update from the American Gastroenterological Association.

The AGA Institute’s Clinical Practice Update on interventional EUS, published in Clinical Gastroenterology and Hepatology , makes the case for broader adoption of two clinically available interventions – EUS-guided coil injection therapy of gastric varices and EUS-guided portosystemic pressure gradient measurement – while listing key research questions that remain to be answered. The update also describes current evidence for several emerging EUS interventions.

Brigham and Women's Hospital

The update’s authors, led by Marvin Ryou, MD, of Brigham and Women’s Hospital, Boston, advised, when available, EUS-guided coil injection therapy of gastric varices over conventional direct endoscopic injection with cyanoacrylate glue, noting that EUS guidance “enhances the precision of injection,” expands treatment options to include placement of hemostatic coils, and uses Doppler to provide real-time feedback on hemostasis.

Available evidence suggests that EUS-guided gastric variceal therapy is “safe, with excellent acute hemostasis and low re-bleeding rates, and likely superiority over traditional direct endoscopic glue injection,” Dr. Ryou and colleagues wrote in their update.

Nonetheless, they cautioned, “the development of a consensus technique would be helpful,” better training of technicians is needed, and large, multicenter studies comparing EUS with standard interventional radiology approaches are still needed.

EUS-guided direct measurement of the portosystemic pressure gradient (PPG) may offer improved clinical efficiency over a percutaneous endovascular approach, Dr. Ryou and colleagues determined, notably when there is concern for a pre-sinusoidal cause of portal hypertension. The EUS intervention allows for the “concurrent ability to perform esophagogastroduodenoscopy and EUS as a one-stop shop during which PPG, liver biopsy, and endoscopic features of portal hypertension … can all be evaluated, obtained, and potentially treated during a single procedure.” The authors updated guidance on four emerging interventions for which evidence remains limited: EUS-guided injection therapy of rectal varices, EUS-guided splenic artery embolization, EUS-guided injection therapy in patients with splenic artery pseudoaneurysms, and EUS-guided portal vein sampling.

While the last of these interventions appears safe, the authors cautioned, it should be performed only as part of a research protocol. The authors described an experimental intervention tested in animal models using a EUS-guided intrahepatic portosystemic shunt in which a self-expanding metal stent was deployed via EUS to bridge the hepatic and portal vein and decompress a hypertensive portal system.

The authors cautioned that the guidance was not the product of a formal systematic review, but represented a summary of practical advice gleaned from a literature review to provide practical advice. As a general rule, they said, EUS-guided vascular interventions should be considered when the vascular target occurs in or near the gastrointestinal wall, “which may confer an advantage to an endoscopic rather than percutaneous access,” and when the intervention has “a clinical efficacy and safety profile comparable, if not superior, to current alternatives.” All the interventions described in the clinical practice update satisfy the first condition, but not the second.

Dr. Ryou and two of his three coauthors disclosed financial relationships, including consulting fees and research support, from device manufacturers.

Expert treatment centers should consider performing certain endoscopic ultrasound (EUS)-guided vascular interventions with current levels of supporting evidence, according to a practice update from the American Gastroenterological Association.

The AGA Institute’s Clinical Practice Update on interventional EUS, published in Clinical Gastroenterology and Hepatology , makes the case for broader adoption of two clinically available interventions – EUS-guided coil injection therapy of gastric varices and EUS-guided portosystemic pressure gradient measurement – while listing key research questions that remain to be answered. The update also describes current evidence for several emerging EUS interventions.

Brigham and Women's Hospital

The update’s authors, led by Marvin Ryou, MD, of Brigham and Women’s Hospital, Boston, advised, when available, EUS-guided coil injection therapy of gastric varices over conventional direct endoscopic injection with cyanoacrylate glue, noting that EUS guidance “enhances the precision of injection,” expands treatment options to include placement of hemostatic coils, and uses Doppler to provide real-time feedback on hemostasis.

Available evidence suggests that EUS-guided gastric variceal therapy is “safe, with excellent acute hemostasis and low re-bleeding rates, and likely superiority over traditional direct endoscopic glue injection,” Dr. Ryou and colleagues wrote in their update.

Nonetheless, they cautioned, “the development of a consensus technique would be helpful,” better training of technicians is needed, and large, multicenter studies comparing EUS with standard interventional radiology approaches are still needed.

EUS-guided direct measurement of the portosystemic pressure gradient (PPG) may offer improved clinical efficiency over a percutaneous endovascular approach, Dr. Ryou and colleagues determined, notably when there is concern for a pre-sinusoidal cause of portal hypertension. The EUS intervention allows for the “concurrent ability to perform esophagogastroduodenoscopy and EUS as a one-stop shop during which PPG, liver biopsy, and endoscopic features of portal hypertension … can all be evaluated, obtained, and potentially treated during a single procedure.” The authors updated guidance on four emerging interventions for which evidence remains limited: EUS-guided injection therapy of rectal varices, EUS-guided splenic artery embolization, EUS-guided injection therapy in patients with splenic artery pseudoaneurysms, and EUS-guided portal vein sampling.

While the last of these interventions appears safe, the authors cautioned, it should be performed only as part of a research protocol. The authors described an experimental intervention tested in animal models using a EUS-guided intrahepatic portosystemic shunt in which a self-expanding metal stent was deployed via EUS to bridge the hepatic and portal vein and decompress a hypertensive portal system.

The authors cautioned that the guidance was not the product of a formal systematic review, but represented a summary of practical advice gleaned from a literature review to provide practical advice. As a general rule, they said, EUS-guided vascular interventions should be considered when the vascular target occurs in or near the gastrointestinal wall, “which may confer an advantage to an endoscopic rather than percutaneous access,” and when the intervention has “a clinical efficacy and safety profile comparable, if not superior, to current alternatives.” All the interventions described in the clinical practice update satisfy the first condition, but not the second.

Dr. Ryou and two of his three coauthors disclosed financial relationships, including consulting fees and research support, from device manufacturers.

Expert treatment centers should consider performing certain endoscopic ultrasound (EUS)-guided vascular interventions with current levels of supporting evidence, according to a practice update from the American Gastroenterological Association.

The AGA Institute’s Clinical Practice Update on interventional EUS, published in Clinical Gastroenterology and Hepatology , makes the case for broader adoption of two clinically available interventions – EUS-guided coil injection therapy of gastric varices and EUS-guided portosystemic pressure gradient measurement – while listing key research questions that remain to be answered. The update also describes current evidence for several emerging EUS interventions.

Brigham and Women's Hospital

The update’s authors, led by Marvin Ryou, MD, of Brigham and Women’s Hospital, Boston, advised, when available, EUS-guided coil injection therapy of gastric varices over conventional direct endoscopic injection with cyanoacrylate glue, noting that EUS guidance “enhances the precision of injection,” expands treatment options to include placement of hemostatic coils, and uses Doppler to provide real-time feedback on hemostasis.

Available evidence suggests that EUS-guided gastric variceal therapy is “safe, with excellent acute hemostasis and low re-bleeding rates, and likely superiority over traditional direct endoscopic glue injection,” Dr. Ryou and colleagues wrote in their update.

Nonetheless, they cautioned, “the development of a consensus technique would be helpful,” better training of technicians is needed, and large, multicenter studies comparing EUS with standard interventional radiology approaches are still needed.

EUS-guided direct measurement of the portosystemic pressure gradient (PPG) may offer improved clinical efficiency over a percutaneous endovascular approach, Dr. Ryou and colleagues determined, notably when there is concern for a pre-sinusoidal cause of portal hypertension. The EUS intervention allows for the “concurrent ability to perform esophagogastroduodenoscopy and EUS as a one-stop shop during which PPG, liver biopsy, and endoscopic features of portal hypertension … can all be evaluated, obtained, and potentially treated during a single procedure.” The authors updated guidance on four emerging interventions for which evidence remains limited: EUS-guided injection therapy of rectal varices, EUS-guided splenic artery embolization, EUS-guided injection therapy in patients with splenic artery pseudoaneurysms, and EUS-guided portal vein sampling.

While the last of these interventions appears safe, the authors cautioned, it should be performed only as part of a research protocol. The authors described an experimental intervention tested in animal models using a EUS-guided intrahepatic portosystemic shunt in which a self-expanding metal stent was deployed via EUS to bridge the hepatic and portal vein and decompress a hypertensive portal system.

The authors cautioned that the guidance was not the product of a formal systematic review, but represented a summary of practical advice gleaned from a literature review to provide practical advice. As a general rule, they said, EUS-guided vascular interventions should be considered when the vascular target occurs in or near the gastrointestinal wall, “which may confer an advantage to an endoscopic rather than percutaneous access,” and when the intervention has “a clinical efficacy and safety profile comparable, if not superior, to current alternatives.” All the interventions described in the clinical practice update satisfy the first condition, but not the second.

Dr. Ryou and two of his three coauthors disclosed financial relationships, including consulting fees and research support, from device manufacturers.

Fecal washes of the distal colon combined with single-cell RNA sequencing can provide extensive, accurate information about the severity and location of inflammation, not only in the distal colon itself, but the proximal colon and terminal ileum.

The noninvasive distal washes also reveal information on gene expression that can predict response to therapies in inflammatory bowel disease.

The findings, from the research group of Shalev Itzkovitz, MD, at the Weizmann Institute of Science in Rehovot, Israel, were published online in the journal Cellular and Molecular Gastroenterology and Hepatology.

Dr. Itzkovitz and his colleagues performed colonoscopies on 29 patients with ulcerative colitis (UC) and 30 with Crohn’s disease (CD) recruited from a single center, as well as 50 healthy controls. The researchers took biopsies and obtained fecal washes at different locations on the ileal-colonic axis. Results were analyzed using host transcriptomics, a method to determine which genes are being expressed in tissue samples.

While previous studies established the value of distal fecal washes in disease affecting the distal colon, Dr. Itzkovitz and colleagues found that the washes obtained from the distal colon contained accurate information “not only of distal colonic inflammation in UC patients, but also of CD inflammation, including when the inflammatory segments are ileal and no colonic involvement is observed.”

They also found that the distal fecal washes, including from CD patients with no distal involvement, showed gene expression of immune, stromal, and epithelial origin correlating with disease severity. The sequencing revealed “a strong transcriptomic signature of gene modules” seen in previous studies to be associated with response to biological therapies, the study authors wrote,

Remarkably, the transcriptomics from fecal washes were more sensitive and specific in revealing inflammation, compared with transcriptomics conducted on the tissue biopsies. “This higher statistical power may be a result of the fact that fecal washes capture cells that are shed throughout the gastrointestinal tract and therefore are not sensitive to the precise location from which a biopsy specimen is obtained,” the authors surmised.

Fecal wash host transcriptomics offer a noninvasive option, without the risks associated with colonoscopy, for selecting therapies in inflammatory bowel disease, the researchers wrote. “This is critical, given that current clinical remission rates with different biological agents are only approximately 30%-60%.”

Dr. Itzkovitz and colleagues’ study was supported by outside entities including the Wolfson Family Charitable Trust, the Edmond de Rothschild Foundations, the Fannie Sherr Fund, the Dr. Beth Rom-Rymer Stem Cell Research Fund, the Minerva Stiftung grant, the Weizmann-Sheba joint research program, the Israel Science Foundation, and the European Research Council, among others. Three coauthors disclosed financial relationships with drug manufacturers.

Fecal washes of the distal colon combined with single-cell RNA sequencing can provide extensive, accurate information about the severity and location of inflammation, not only in the distal colon itself, but the proximal colon and terminal ileum.

The noninvasive distal washes also reveal information on gene expression that can predict response to therapies in inflammatory bowel disease.

The findings, from the research group of Shalev Itzkovitz, MD, at the Weizmann Institute of Science in Rehovot, Israel, were published online in the journal Cellular and Molecular Gastroenterology and Hepatology.

Dr. Itzkovitz and his colleagues performed colonoscopies on 29 patients with ulcerative colitis (UC) and 30 with Crohn’s disease (CD) recruited from a single center, as well as 50 healthy controls. The researchers took biopsies and obtained fecal washes at different locations on the ileal-colonic axis. Results were analyzed using host transcriptomics, a method to determine which genes are being expressed in tissue samples.

While previous studies established the value of distal fecal washes in disease affecting the distal colon, Dr. Itzkovitz and colleagues found that the washes obtained from the distal colon contained accurate information “not only of distal colonic inflammation in UC patients, but also of CD inflammation, including when the inflammatory segments are ileal and no colonic involvement is observed.”

They also found that the distal fecal washes, including from CD patients with no distal involvement, showed gene expression of immune, stromal, and epithelial origin correlating with disease severity. The sequencing revealed “a strong transcriptomic signature of gene modules” seen in previous studies to be associated with response to biological therapies, the study authors wrote,

Remarkably, the transcriptomics from fecal washes were more sensitive and specific in revealing inflammation, compared with transcriptomics conducted on the tissue biopsies. “This higher statistical power may be a result of the fact that fecal washes capture cells that are shed throughout the gastrointestinal tract and therefore are not sensitive to the precise location from which a biopsy specimen is obtained,” the authors surmised.

Fecal wash host transcriptomics offer a noninvasive option, without the risks associated with colonoscopy, for selecting therapies in inflammatory bowel disease, the researchers wrote. “This is critical, given that current clinical remission rates with different biological agents are only approximately 30%-60%.”

Dr. Itzkovitz and colleagues’ study was supported by outside entities including the Wolfson Family Charitable Trust, the Edmond de Rothschild Foundations, the Fannie Sherr Fund, the Dr. Beth Rom-Rymer Stem Cell Research Fund, the Minerva Stiftung grant, the Weizmann-Sheba joint research program, the Israel Science Foundation, and the European Research Council, among others. Three coauthors disclosed financial relationships with drug manufacturers.

Fecal washes of the distal colon combined with single-cell RNA sequencing can provide extensive, accurate information about the severity and location of inflammation, not only in the distal colon itself, but the proximal colon and terminal ileum.

The noninvasive distal washes also reveal information on gene expression that can predict response to therapies in inflammatory bowel disease.

The findings, from the research group of Shalev Itzkovitz, MD, at the Weizmann Institute of Science in Rehovot, Israel, were published online in the journal Cellular and Molecular Gastroenterology and Hepatology.

Dr. Itzkovitz and his colleagues performed colonoscopies on 29 patients with ulcerative colitis (UC) and 30 with Crohn’s disease (CD) recruited from a single center, as well as 50 healthy controls. The researchers took biopsies and obtained fecal washes at different locations on the ileal-colonic axis. Results were analyzed using host transcriptomics, a method to determine which genes are being expressed in tissue samples.

While previous studies established the value of distal fecal washes in disease affecting the distal colon, Dr. Itzkovitz and colleagues found that the washes obtained from the distal colon contained accurate information “not only of distal colonic inflammation in UC patients, but also of CD inflammation, including when the inflammatory segments are ileal and no colonic involvement is observed.”

They also found that the distal fecal washes, including from CD patients with no distal involvement, showed gene expression of immune, stromal, and epithelial origin correlating with disease severity. The sequencing revealed “a strong transcriptomic signature of gene modules” seen in previous studies to be associated with response to biological therapies, the study authors wrote,

Remarkably, the transcriptomics from fecal washes were more sensitive and specific in revealing inflammation, compared with transcriptomics conducted on the tissue biopsies. “This higher statistical power may be a result of the fact that fecal washes capture cells that are shed throughout the gastrointestinal tract and therefore are not sensitive to the precise location from which a biopsy specimen is obtained,” the authors surmised.

Fecal wash host transcriptomics offer a noninvasive option, without the risks associated with colonoscopy, for selecting therapies in inflammatory bowel disease, the researchers wrote. “This is critical, given that current clinical remission rates with different biological agents are only approximately 30%-60%.”

Dr. Itzkovitz and colleagues’ study was supported by outside entities including the Wolfson Family Charitable Trust, the Edmond de Rothschild Foundations, the Fannie Sherr Fund, the Dr. Beth Rom-Rymer Stem Cell Research Fund, the Minerva Stiftung grant, the Weizmann-Sheba joint research program, the Israel Science Foundation, and the European Research Council, among others. Three coauthors disclosed financial relationships with drug manufacturers.