IBD & Intestinal Disorders

Crohn’s disease (CD) involves altered B-cell expansion and maturation in draining mesenteric lymph nodes, according to investigators.

These findings begin to address a knowledge gap in Crohn’s disease that has been more thoroughly explored in ulcerative colitis, reported lead author Sonja Kappel-Latif, MD, PhD, of Medical University of Vienna, Vienna, Austria, and colleagues.

Medical University of Vienna

“Recent studies have investigated the role of B-cell responses in ulcerative colitis, which exclusively affects the colon, whereas data in CD, which mainly affects the terminal ileum, are insufficient,” the investigators wrote in wrote in Cellular and Molecular Gastroenterology and Hepatology. “Granuloma formation within the thickened, inflamed mesentery of patients with CD, however, is associated with significantly worse outcome, and microstructural analysis has suggested increased numbers of B cells in CD mesentery.”

Previous studies have shown that abnormal B-cell development in patients with CD leads to development of IgG targeting commensal — instead of pathogenic — gut bacteria. Yet B-cell receptor sequencing in CD has only been conducted on peripheral blood, despite awareness that anticommensal IgG antibodies can be transported across mucosal barriers in patients with ulcerative colitis, sustaining intestinal inflammation.

To better characterize local B-cell responses in CD, the investigators evaluated paired samples of draining mesenteric lymph nodes (MLNs) from both healthy and adjacently affected intestinal tissue, yielding a range of findings.

First, the investigators noted that CD19+ B cells and CD45+ leukocytes were expanded in affected MLNs, while T cells were reduced. A closer look showed that IgD-CD27- B cells were more abundant among CD19+CD45+ B cells in affected MLNs. Within this CD45+CD19+CD27+IgD- B-cell fraction, CD38- memory B cells were reduced.

The above findings suggest “ongoing antigenic stimulation within affected MLNs,” the investigators wrote.

Further comparison of paired samples showed that germinal centers (within which B cells mature) were significantly larger in affected MLNs, and contained dark and light zones. In contrast, healthy MLNs had smaller, more immature germinal centers.

Due to T-cell dependence during B-cell isotype switching within these germinal centers, the investigators next conducted immunohistochemistry staining for Bcl6, a “master regulator” of T-follicular helper cells expressed in class-switching B cells, and Ki67, which indicates cell proliferation. These analyses shows that both markers were “highly positive” within the germinal centers of affected MLNs.

Next, Dr. Kappel-Latif and colleagues conducted B-cell receptor (BCR) sequencing to characterize differences in class switching. Compared with healthy MLNs, affected MLNs showed decreased use of IGHA and IGHE alongside a significant uptick in IGHG1/2.

Further analyses showed that somatic hypermutation (SHM) frequency was significantly higher in IGHM and IGHA B cells, which was driven by mutations in complementary determining regions (CDRs) and framework regions of IGHA B cells, and mutations in the CDRs of IGHM B cells.

BCR diversity increased in the IGHG1/2 B cells, but remained unchanged in the IGHM or IGHA B cells.

“Overall, our results indicate ongoing class switching within draining MLNs of affected intestinal segments, with a shift toward IGHG1/2 BCRs,” the investigators concluded. “The lack of high SHM rates within IGHG1/2 BCRs, the difference between IGHA and IGHG1/2 BCRs in single MLNs, and increased diversity in IGHG1/2 BCRs suggests that many antigens do not result in long-lasting immunologic stimulation, and IGHA and IGHG1/2 responses may target different pathogens/commensals.”

The study was supported by the Austrian Science Fund and the Major of Vienna. The investigators disclosed no conflicts of interest.

Crohn’s disease (CD) involves altered B-cell expansion and maturation in draining mesenteric lymph nodes, according to investigators.

These findings begin to address a knowledge gap in Crohn’s disease that has been more thoroughly explored in ulcerative colitis, reported lead author Sonja Kappel-Latif, MD, PhD, of Medical University of Vienna, Vienna, Austria, and colleagues.

Medical University of Vienna

“Recent studies have investigated the role of B-cell responses in ulcerative colitis, which exclusively affects the colon, whereas data in CD, which mainly affects the terminal ileum, are insufficient,” the investigators wrote in wrote in Cellular and Molecular Gastroenterology and Hepatology. “Granuloma formation within the thickened, inflamed mesentery of patients with CD, however, is associated with significantly worse outcome, and microstructural analysis has suggested increased numbers of B cells in CD mesentery.”

Previous studies have shown that abnormal B-cell development in patients with CD leads to development of IgG targeting commensal — instead of pathogenic — gut bacteria. Yet B-cell receptor sequencing in CD has only been conducted on peripheral blood, despite awareness that anticommensal IgG antibodies can be transported across mucosal barriers in patients with ulcerative colitis, sustaining intestinal inflammation.

To better characterize local B-cell responses in CD, the investigators evaluated paired samples of draining mesenteric lymph nodes (MLNs) from both healthy and adjacently affected intestinal tissue, yielding a range of findings.

First, the investigators noted that CD19+ B cells and CD45+ leukocytes were expanded in affected MLNs, while T cells were reduced. A closer look showed that IgD-CD27- B cells were more abundant among CD19+CD45+ B cells in affected MLNs. Within this CD45+CD19+CD27+IgD- B-cell fraction, CD38- memory B cells were reduced.

The above findings suggest “ongoing antigenic stimulation within affected MLNs,” the investigators wrote.

Further comparison of paired samples showed that germinal centers (within which B cells mature) were significantly larger in affected MLNs, and contained dark and light zones. In contrast, healthy MLNs had smaller, more immature germinal centers.

Due to T-cell dependence during B-cell isotype switching within these germinal centers, the investigators next conducted immunohistochemistry staining for Bcl6, a “master regulator” of T-follicular helper cells expressed in class-switching B cells, and Ki67, which indicates cell proliferation. These analyses shows that both markers were “highly positive” within the germinal centers of affected MLNs.

Next, Dr. Kappel-Latif and colleagues conducted B-cell receptor (BCR) sequencing to characterize differences in class switching. Compared with healthy MLNs, affected MLNs showed decreased use of IGHA and IGHE alongside a significant uptick in IGHG1/2.

Further analyses showed that somatic hypermutation (SHM) frequency was significantly higher in IGHM and IGHA B cells, which was driven by mutations in complementary determining regions (CDRs) and framework regions of IGHA B cells, and mutations in the CDRs of IGHM B cells.

BCR diversity increased in the IGHG1/2 B cells, but remained unchanged in the IGHM or IGHA B cells.

“Overall, our results indicate ongoing class switching within draining MLNs of affected intestinal segments, with a shift toward IGHG1/2 BCRs,” the investigators concluded. “The lack of high SHM rates within IGHG1/2 BCRs, the difference between IGHA and IGHG1/2 BCRs in single MLNs, and increased diversity in IGHG1/2 BCRs suggests that many antigens do not result in long-lasting immunologic stimulation, and IGHA and IGHG1/2 responses may target different pathogens/commensals.”

The study was supported by the Austrian Science Fund and the Major of Vienna. The investigators disclosed no conflicts of interest.

Crohn’s disease (CD) involves altered B-cell expansion and maturation in draining mesenteric lymph nodes, according to investigators.

These findings begin to address a knowledge gap in Crohn’s disease that has been more thoroughly explored in ulcerative colitis, reported lead author Sonja Kappel-Latif, MD, PhD, of Medical University of Vienna, Vienna, Austria, and colleagues.

Medical University of Vienna

“Recent studies have investigated the role of B-cell responses in ulcerative colitis, which exclusively affects the colon, whereas data in CD, which mainly affects the terminal ileum, are insufficient,” the investigators wrote in wrote in Cellular and Molecular Gastroenterology and Hepatology. “Granuloma formation within the thickened, inflamed mesentery of patients with CD, however, is associated with significantly worse outcome, and microstructural analysis has suggested increased numbers of B cells in CD mesentery.”

Previous studies have shown that abnormal B-cell development in patients with CD leads to development of IgG targeting commensal — instead of pathogenic — gut bacteria. Yet B-cell receptor sequencing in CD has only been conducted on peripheral blood, despite awareness that anticommensal IgG antibodies can be transported across mucosal barriers in patients with ulcerative colitis, sustaining intestinal inflammation.

To better characterize local B-cell responses in CD, the investigators evaluated paired samples of draining mesenteric lymph nodes (MLNs) from both healthy and adjacently affected intestinal tissue, yielding a range of findings.

First, the investigators noted that CD19+ B cells and CD45+ leukocytes were expanded in affected MLNs, while T cells were reduced. A closer look showed that IgD-CD27- B cells were more abundant among CD19+CD45+ B cells in affected MLNs. Within this CD45+CD19+CD27+IgD- B-cell fraction, CD38- memory B cells were reduced.

The above findings suggest “ongoing antigenic stimulation within affected MLNs,” the investigators wrote.

Further comparison of paired samples showed that germinal centers (within which B cells mature) were significantly larger in affected MLNs, and contained dark and light zones. In contrast, healthy MLNs had smaller, more immature germinal centers.

Due to T-cell dependence during B-cell isotype switching within these germinal centers, the investigators next conducted immunohistochemistry staining for Bcl6, a “master regulator” of T-follicular helper cells expressed in class-switching B cells, and Ki67, which indicates cell proliferation. These analyses shows that both markers were “highly positive” within the germinal centers of affected MLNs.

Next, Dr. Kappel-Latif and colleagues conducted B-cell receptor (BCR) sequencing to characterize differences in class switching. Compared with healthy MLNs, affected MLNs showed decreased use of IGHA and IGHE alongside a significant uptick in IGHG1/2.

Further analyses showed that somatic hypermutation (SHM) frequency was significantly higher in IGHM and IGHA B cells, which was driven by mutations in complementary determining regions (CDRs) and framework regions of IGHA B cells, and mutations in the CDRs of IGHM B cells.

BCR diversity increased in the IGHG1/2 B cells, but remained unchanged in the IGHM or IGHA B cells.

“Overall, our results indicate ongoing class switching within draining MLNs of affected intestinal segments, with a shift toward IGHG1/2 BCRs,” the investigators concluded. “The lack of high SHM rates within IGHG1/2 BCRs, the difference between IGHA and IGHG1/2 BCRs in single MLNs, and increased diversity in IGHG1/2 BCRs suggests that many antigens do not result in long-lasting immunologic stimulation, and IGHA and IGHG1/2 responses may target different pathogens/commensals.”

The study was supported by the Austrian Science Fund and the Major of Vienna. The investigators disclosed no conflicts of interest.

Based on a synthesis of best available evidence, the American Gastroenterological Association (AGA) has released clinical recommendations on fecal microbiota-based therapies (FMT) in adults with gastrointestinal diseases.

Addressing Clostridium difficile infection (CDI), Crohn’s disease (CD) ulcerative colitis (UC), pouchitis, and irritable bowel syndrome (IBS), the guidance supports FMT for the prevention of recurrent CDI but not for inflammatory bowel disease (IBD) or IBS — outside of clinical trials.

The AGA’s recommendations were published in Gastroenterology.

“Fecal microbiota–based therapies are effective therapy to prevent recurrent C. difficile in select patients,” the AGA guideline states. “Conventional fecal microbiota transplant is an adjuvant treatment for select adults hospitalized with severe or fulminant C. difficile infection not responding to standard of care antibiotics. Fecal microbiota transplant cannot yet be recommended in other gastrointestinal conditions.”

“We thought it was important to write this guideline because of the growing number of trials of FMT in IBD and IBS populations. It was also important with the new FDA-approved treatments on the market,” the guideline’s first author, Anne F. Peery, MD, MSCR, AGAF, told this news organization, noting that the recently approved products did not yield better results than those of conventional rectal FMT. “The guidelines will help clinicians understand the available therapies and how to use these treatments,” added Dr. Peery, associate professor in the Division of Gastroenterology and Hepatology at the University of North Carolina School of Medicine in Chapel Hill.

Although the existing evidence is of low or very low certainty, Dr. Peery acknowledged, gastroenterologists “should be comfortable with conventional FMT and also the new FDA-approved products. We spent a considerable amount of time developing implementation considerations, which is practical advice to help clinicians use the guideline recommendations.”

Brian Strickland/University of North Carolina

Recommendations

The eight-member panel suggested the following practices on behalf of the AGA Clinical Guidelines Committee:

• In immunocompetent adults with recurrent CDI, select use of FMT can be used after completion of standard-of-care antibiotics to prevent recurrence. It can be considered after the second recurrence (episode 3) of CDI or in select patients at high risk for either recurrent CDI or a morbid CDI recurrence. Recurrent CDI is defined as clinically significant diarrhea ≥ 3 unformed stools in 24 hours with a confirmatory positive test within 8 weeks of completing antibiotics. Select use includes patients who have recovered from severe, fulminant, or particularly treatment-refractory CDI and patients with significant comorbidities. Severe CDI involves a leukocyte count of ≥15 × 109 cells/L and/or creatinine ≥1.5 mg/dL, while fulminant CDI involves shock, ileus, or megacolon and can be fatal.
• In mildly or moderately immunocompromised adults with recurrent CDI, the guidance recommends select use of conventional fecal microbiota transplant.
• In severely immunocompromised adults or those undergoing cytotoxic treatment, the AGA advises against the use of any fecal microbiota-based therapies to prevent recurrent CDI.
• Conventional FMT is not advised in patients who have bowel perforation or obstruction or are severely immunocompromised.
• For CDI patients not interested in FMT, reasonable alternatives to prevent recurrence are a vancomycin taper, tapered-pulsed fidaxomicin, or bezlotoxumab.
• In adults hospitalized with severe or fulminant CDI not responding to standard-of-care antibiotics, the AGA recommends select use of conventional FM transplant.
• In the current absence of evidence, the guidance advises against the use of conventional fecal microbiota transplant as treatment for IBD or IBS except in the context of clinical trials.

“We felt the data for using FMT in the treatment of UC was promising, but there is still a lot more work to be done in IBD and IBS,” Dr. Peery said. For each disease section the guideline outlined directions for future research. It will be updated in 3-5 years as more evidence becomes available.

This guideline was fully funded by the AGA Institute. Dr. Peery and fellow panel member Dr. Benjamin Lebwohl are supported by grants the National Institute of Diabetes and Digestive and Kidney Diseases. Panel member Colleen R. Kelly, MD, is supported by the National Institute of Allergy and Infectious Diseases.

None of the panel members had any conflicts of interest to report.

Based on a synthesis of best available evidence, the American Gastroenterological Association (AGA) has released clinical recommendations on fecal microbiota-based therapies (FMT) in adults with gastrointestinal diseases.

Addressing Clostridium difficile infection (CDI), Crohn’s disease (CD) ulcerative colitis (UC), pouchitis, and irritable bowel syndrome (IBS), the guidance supports FMT for the prevention of recurrent CDI but not for inflammatory bowel disease (IBD) or IBS — outside of clinical trials.

The AGA’s recommendations were published in Gastroenterology.

“Fecal microbiota–based therapies are effective therapy to prevent recurrent C. difficile in select patients,” the AGA guideline states. “Conventional fecal microbiota transplant is an adjuvant treatment for select adults hospitalized with severe or fulminant C. difficile infection not responding to standard of care antibiotics. Fecal microbiota transplant cannot yet be recommended in other gastrointestinal conditions.”

“We thought it was important to write this guideline because of the growing number of trials of FMT in IBD and IBS populations. It was also important with the new FDA-approved treatments on the market,” the guideline’s first author, Anne F. Peery, MD, MSCR, AGAF, told this news organization, noting that the recently approved products did not yield better results than those of conventional rectal FMT. “The guidelines will help clinicians understand the available therapies and how to use these treatments,” added Dr. Peery, associate professor in the Division of Gastroenterology and Hepatology at the University of North Carolina School of Medicine in Chapel Hill.

Although the existing evidence is of low or very low certainty, Dr. Peery acknowledged, gastroenterologists “should be comfortable with conventional FMT and also the new FDA-approved products. We spent a considerable amount of time developing implementation considerations, which is practical advice to help clinicians use the guideline recommendations.”

Brian Strickland/University of North Carolina

Recommendations

The eight-member panel suggested the following practices on behalf of the AGA Clinical Guidelines Committee:

• In immunocompetent adults with recurrent CDI, select use of FMT can be used after completion of standard-of-care antibiotics to prevent recurrence. It can be considered after the second recurrence (episode 3) of CDI or in select patients at high risk for either recurrent CDI or a morbid CDI recurrence. Recurrent CDI is defined as clinically significant diarrhea ≥ 3 unformed stools in 24 hours with a confirmatory positive test within 8 weeks of completing antibiotics. Select use includes patients who have recovered from severe, fulminant, or particularly treatment-refractory CDI and patients with significant comorbidities. Severe CDI involves a leukocyte count of ≥15 × 109 cells/L and/or creatinine ≥1.5 mg/dL, while fulminant CDI involves shock, ileus, or megacolon and can be fatal.
• In mildly or moderately immunocompromised adults with recurrent CDI, the guidance recommends select use of conventional fecal microbiota transplant.
• In severely immunocompromised adults or those undergoing cytotoxic treatment, the AGA advises against the use of any fecal microbiota-based therapies to prevent recurrent CDI.
• Conventional FMT is not advised in patients who have bowel perforation or obstruction or are severely immunocompromised.
• For CDI patients not interested in FMT, reasonable alternatives to prevent recurrence are a vancomycin taper, tapered-pulsed fidaxomicin, or bezlotoxumab.
• In adults hospitalized with severe or fulminant CDI not responding to standard-of-care antibiotics, the AGA recommends select use of conventional FM transplant.
• In the current absence of evidence, the guidance advises against the use of conventional fecal microbiota transplant as treatment for IBD or IBS except in the context of clinical trials.

“We felt the data for using FMT in the treatment of UC was promising, but there is still a lot more work to be done in IBD and IBS,” Dr. Peery said. For each disease section the guideline outlined directions for future research. It will be updated in 3-5 years as more evidence becomes available.

This guideline was fully funded by the AGA Institute. Dr. Peery and fellow panel member Dr. Benjamin Lebwohl are supported by grants the National Institute of Diabetes and Digestive and Kidney Diseases. Panel member Colleen R. Kelly, MD, is supported by the National Institute of Allergy and Infectious Diseases.

None of the panel members had any conflicts of interest to report.

Based on a synthesis of best available evidence, the American Gastroenterological Association (AGA) has released clinical recommendations on fecal microbiota-based therapies (FMT) in adults with gastrointestinal diseases.

Addressing Clostridium difficile infection (CDI), Crohn’s disease (CD) ulcerative colitis (UC), pouchitis, and irritable bowel syndrome (IBS), the guidance supports FMT for the prevention of recurrent CDI but not for inflammatory bowel disease (IBD) or IBS — outside of clinical trials.

The AGA’s recommendations were published in Gastroenterology.

“Fecal microbiota–based therapies are effective therapy to prevent recurrent C. difficile in select patients,” the AGA guideline states. “Conventional fecal microbiota transplant is an adjuvant treatment for select adults hospitalized with severe or fulminant C. difficile infection not responding to standard of care antibiotics. Fecal microbiota transplant cannot yet be recommended in other gastrointestinal conditions.”

“We thought it was important to write this guideline because of the growing number of trials of FMT in IBD and IBS populations. It was also important with the new FDA-approved treatments on the market,” the guideline’s first author, Anne F. Peery, MD, MSCR, AGAF, told this news organization, noting that the recently approved products did not yield better results than those of conventional rectal FMT. “The guidelines will help clinicians understand the available therapies and how to use these treatments,” added Dr. Peery, associate professor in the Division of Gastroenterology and Hepatology at the University of North Carolina School of Medicine in Chapel Hill.

Although the existing evidence is of low or very low certainty, Dr. Peery acknowledged, gastroenterologists “should be comfortable with conventional FMT and also the new FDA-approved products. We spent a considerable amount of time developing implementation considerations, which is practical advice to help clinicians use the guideline recommendations.”

Brian Strickland/University of North Carolina

Recommendations

The eight-member panel suggested the following practices on behalf of the AGA Clinical Guidelines Committee:

• In immunocompetent adults with recurrent CDI, select use of FMT can be used after completion of standard-of-care antibiotics to prevent recurrence. It can be considered after the second recurrence (episode 3) of CDI or in select patients at high risk for either recurrent CDI or a morbid CDI recurrence. Recurrent CDI is defined as clinically significant diarrhea ≥ 3 unformed stools in 24 hours with a confirmatory positive test within 8 weeks of completing antibiotics. Select use includes patients who have recovered from severe, fulminant, or particularly treatment-refractory CDI and patients with significant comorbidities. Severe CDI involves a leukocyte count of ≥15 × 109 cells/L and/or creatinine ≥1.5 mg/dL, while fulminant CDI involves shock, ileus, or megacolon and can be fatal.
• In mildly or moderately immunocompromised adults with recurrent CDI, the guidance recommends select use of conventional fecal microbiota transplant.
• In severely immunocompromised adults or those undergoing cytotoxic treatment, the AGA advises against the use of any fecal microbiota-based therapies to prevent recurrent CDI.
• Conventional FMT is not advised in patients who have bowel perforation or obstruction or are severely immunocompromised.
• For CDI patients not interested in FMT, reasonable alternatives to prevent recurrence are a vancomycin taper, tapered-pulsed fidaxomicin, or bezlotoxumab.
• In adults hospitalized with severe or fulminant CDI not responding to standard-of-care antibiotics, the AGA recommends select use of conventional FM transplant.
• In the current absence of evidence, the guidance advises against the use of conventional fecal microbiota transplant as treatment for IBD or IBS except in the context of clinical trials.

“We felt the data for using FMT in the treatment of UC was promising, but there is still a lot more work to be done in IBD and IBS,” Dr. Peery said. For each disease section the guideline outlined directions for future research. It will be updated in 3-5 years as more evidence becomes available.

This guideline was fully funded by the AGA Institute. Dr. Peery and fellow panel member Dr. Benjamin Lebwohl are supported by grants the National Institute of Diabetes and Digestive and Kidney Diseases. Panel member Colleen R. Kelly, MD, is supported by the National Institute of Allergy and Infectious Diseases.

None of the panel members had any conflicts of interest to report.

Approximately 1 in 12 adults worldwide has fecal incontinence (FI), according to a recent meta-analysis.

FI is more common among individuals 60 years and older, yet a considerable portion of younger people — almost 5% — may also suffer from FI, reported Isabelle Mack, PhD, of University Medical Hospital, Tübingen, Germany, and colleagues.

“Clinicians’ understanding of the prevalence and risk factors for FI have evolved with time,” the investigators wrote in Clinical Gastroenterology and Hepatology. “Initially, FI was regarded as a symptom that predominantly affected older people, especially nursing home residents. Its prevalence among community-dwelling adults was underrecognized, possibly because persons with FI were hesitant to even disclose that they were symptomatic. Now, we recognize that FI is common in the community.”

University Medical Hospital, Tübingen

The only previous meta-analysis of FI, published in 2006, included both community and noncommunity studies, and reported an FI prevalence of 4.3%. Two subsequent reviews put the median prevalence at 7.7%, yet neither offered geographic insights.

To address this knowledge gap, Dr. Mack and colleagues conducted a meta-analysis of 80 studies involving 548,316 community-dwelling teenagers and adults. The median response rate across the studies was 66%.

Evaluating these data revealed a pooled global prevalence of FI was 8.0%, with a lower rate of 5.4% when FI was confined to Rome criteria.

“Placed in perspective, the 8.0% prevalence of FI is lower than or similar to the global prevalence of IBS, as assessed by a meta-regression (11.2%) and by a systematic review (8.8%) using pre–Rome IV criteria, and it is twofold greater than the IBS prevalence assessed with Rome IV criteria,” the investigators wrote.

Among individuals aged 60 years and older, the FI prevalence was 9.3%, compared with 4.9% for younger people (odds ratio [OR], 1.75; 95% CI, 1.39-2.20).

“These differences are at least partly explained by age-associated declines in anorectal function (e.g., lower anal resting pressure and rectal distensibility, denervation of the external anal sphincter),” the investigators wrote.

FI was also significantly more common among women than men (9.1% vs 7.4%; OR, 1.17; 95% CI, 1.06-1.28).

“Although these differences in FI prevalence between men and women seem relatively small, most patients with FI who seek medical attention are women (unpublished data),” the investigators wrote. “We suspect that men less commonly seek medical attention for FI because they may be secretly resigned to having FI, because FI may have less of an emotional impact on men, and because health literacy with regard to FI is lower for men.”

Geographically, prevalence of FI was highest in Australia and Oceania, followed by North America, Asia, and Europe. Data were insufficient to estimates rates in the Middle East and Africa.

Dr. Mack and colleagues concluded by noting how bothersome FI is for so many individuals worldwide, which should warrant closer attention from the medical community.

“Because nearly one in four community-dwelling women with FI report that the symptom has a moderate or severe impact on one or more domains of quality of life, more resources should be devoted to research in this area,” they wrote. “Future epidemiologic studies of FI should also assess the severity of FI, risk factors for FI, and the impact of FI on quality of life. In addition, because some patients are reluctant to acknowledge or discuss FI during an in-person interview, written or internet-based surveys may be preferable.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The investigators disclosed no conflicts of interest.

Approximately 1 in 12 adults worldwide has fecal incontinence (FI), according to a recent meta-analysis.

FI is more common among individuals 60 years and older, yet a considerable portion of younger people — almost 5% — may also suffer from FI, reported Isabelle Mack, PhD, of University Medical Hospital, Tübingen, Germany, and colleagues.

“Clinicians’ understanding of the prevalence and risk factors for FI have evolved with time,” the investigators wrote in Clinical Gastroenterology and Hepatology. “Initially, FI was regarded as a symptom that predominantly affected older people, especially nursing home residents. Its prevalence among community-dwelling adults was underrecognized, possibly because persons with FI were hesitant to even disclose that they were symptomatic. Now, we recognize that FI is common in the community.”

University Medical Hospital, Tübingen

The only previous meta-analysis of FI, published in 2006, included both community and noncommunity studies, and reported an FI prevalence of 4.3%. Two subsequent reviews put the median prevalence at 7.7%, yet neither offered geographic insights.

To address this knowledge gap, Dr. Mack and colleagues conducted a meta-analysis of 80 studies involving 548,316 community-dwelling teenagers and adults. The median response rate across the studies was 66%.

Evaluating these data revealed a pooled global prevalence of FI was 8.0%, with a lower rate of 5.4% when FI was confined to Rome criteria.

“Placed in perspective, the 8.0% prevalence of FI is lower than or similar to the global prevalence of IBS, as assessed by a meta-regression (11.2%) and by a systematic review (8.8%) using pre–Rome IV criteria, and it is twofold greater than the IBS prevalence assessed with Rome IV criteria,” the investigators wrote.

Among individuals aged 60 years and older, the FI prevalence was 9.3%, compared with 4.9% for younger people (odds ratio [OR], 1.75; 95% CI, 1.39-2.20).

“These differences are at least partly explained by age-associated declines in anorectal function (e.g., lower anal resting pressure and rectal distensibility, denervation of the external anal sphincter),” the investigators wrote.

FI was also significantly more common among women than men (9.1% vs 7.4%; OR, 1.17; 95% CI, 1.06-1.28).

“Although these differences in FI prevalence between men and women seem relatively small, most patients with FI who seek medical attention are women (unpublished data),” the investigators wrote. “We suspect that men less commonly seek medical attention for FI because they may be secretly resigned to having FI, because FI may have less of an emotional impact on men, and because health literacy with regard to FI is lower for men.”

Geographically, prevalence of FI was highest in Australia and Oceania, followed by North America, Asia, and Europe. Data were insufficient to estimates rates in the Middle East and Africa.

Dr. Mack and colleagues concluded by noting how bothersome FI is for so many individuals worldwide, which should warrant closer attention from the medical community.

“Because nearly one in four community-dwelling women with FI report that the symptom has a moderate or severe impact on one or more domains of quality of life, more resources should be devoted to research in this area,” they wrote. “Future epidemiologic studies of FI should also assess the severity of FI, risk factors for FI, and the impact of FI on quality of life. In addition, because some patients are reluctant to acknowledge or discuss FI during an in-person interview, written or internet-based surveys may be preferable.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The investigators disclosed no conflicts of interest.

Approximately 1 in 12 adults worldwide has fecal incontinence (FI), according to a recent meta-analysis.

FI is more common among individuals 60 years and older, yet a considerable portion of younger people — almost 5% — may also suffer from FI, reported Isabelle Mack, PhD, of University Medical Hospital, Tübingen, Germany, and colleagues.

“Clinicians’ understanding of the prevalence and risk factors for FI have evolved with time,” the investigators wrote in Clinical Gastroenterology and Hepatology. “Initially, FI was regarded as a symptom that predominantly affected older people, especially nursing home residents. Its prevalence among community-dwelling adults was underrecognized, possibly because persons with FI were hesitant to even disclose that they were symptomatic. Now, we recognize that FI is common in the community.”

University Medical Hospital, Tübingen

The only previous meta-analysis of FI, published in 2006, included both community and noncommunity studies, and reported an FI prevalence of 4.3%. Two subsequent reviews put the median prevalence at 7.7%, yet neither offered geographic insights.

To address this knowledge gap, Dr. Mack and colleagues conducted a meta-analysis of 80 studies involving 548,316 community-dwelling teenagers and adults. The median response rate across the studies was 66%.

Evaluating these data revealed a pooled global prevalence of FI was 8.0%, with a lower rate of 5.4% when FI was confined to Rome criteria.

“Placed in perspective, the 8.0% prevalence of FI is lower than or similar to the global prevalence of IBS, as assessed by a meta-regression (11.2%) and by a systematic review (8.8%) using pre–Rome IV criteria, and it is twofold greater than the IBS prevalence assessed with Rome IV criteria,” the investigators wrote.

Among individuals aged 60 years and older, the FI prevalence was 9.3%, compared with 4.9% for younger people (odds ratio [OR], 1.75; 95% CI, 1.39-2.20).

“These differences are at least partly explained by age-associated declines in anorectal function (e.g., lower anal resting pressure and rectal distensibility, denervation of the external anal sphincter),” the investigators wrote.

FI was also significantly more common among women than men (9.1% vs 7.4%; OR, 1.17; 95% CI, 1.06-1.28).

“Although these differences in FI prevalence between men and women seem relatively small, most patients with FI who seek medical attention are women (unpublished data),” the investigators wrote. “We suspect that men less commonly seek medical attention for FI because they may be secretly resigned to having FI, because FI may have less of an emotional impact on men, and because health literacy with regard to FI is lower for men.”

Geographically, prevalence of FI was highest in Australia and Oceania, followed by North America, Asia, and Europe. Data were insufficient to estimates rates in the Middle East and Africa.

Dr. Mack and colleagues concluded by noting how bothersome FI is for so many individuals worldwide, which should warrant closer attention from the medical community.

“Because nearly one in four community-dwelling women with FI report that the symptom has a moderate or severe impact on one or more domains of quality of life, more resources should be devoted to research in this area,” they wrote. “Future epidemiologic studies of FI should also assess the severity of FI, risk factors for FI, and the impact of FI on quality of life. In addition, because some patients are reluctant to acknowledge or discuss FI during an in-person interview, written or internet-based surveys may be preferable.”

This study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The investigators disclosed no conflicts of interest.

The American Gastroenterological Association (AGA) has released a clinical practice update on the role of diet and nutritional therapies in patients with inflammatory bowel disease (IBD).

The new guidance, authored by Jana G. Al Hashash, MD, MSc, AGAF, of Mayo Clinic, Jacksonville, Florida, and colleagues, includes 12 best practices that address dietary options, enteral and parenteral nutrition, patient monitoring, and the need for multidisciplinary care.

Mayo Clinic

“There is growing recognition of the role of diet in the care of patients with IBD, as both an etiopathogenic risk factor and, more recently, as a disease-modifying modality,” the update panelists wrote in Gastroenterology.

Historically, they noted, patients with IBD had been advised to avoid many different foods including fiber, but this strategy may result in unintended consequences.

“[T]hese approaches frequently led patients with IBD to avoid what are traditionally considered healthy foods, even after achieving clinical remission,” Dr. Al Hashash and colleagues wrote.

With an increasing body of data available for dietary interventions in both Crohn’s disease and ulcerative colitis, they wrote the present clinical practice update to offer some needed clarity.
 

A Starting Point

First, the panelists advise that, unless contraindicated, all patients with IBD follow a Mediterranean diet while minimizing salt, sugar, and ultraprocessed foods.

Patients with symptomatic intestinal strictures may struggle to digest raw fruits and vegetables due to their fibrous nature, they added, so these patients should first soften these foods through cooking, steaming, or “careful chewing” before consumption.

“No diet has consistently been found to decrease the rate of flares in adults with IBD,” the update panelists noted. “A diet low in red and processed meat may reduce ulcerative colitis flares, but has not been found to reduce relapse in Crohn’s disease.”

Beyond these dietary suggestions for adults, the update advises breastfeeding for newborns and a Mediterranean diet for children, as both may reduce risk of developing IBD.
 

Enteral Nutrition

The update suggests that exclusive enteral nutrition is a reasonable option to induce clinical remission and endoscopic response, or as a steroid-sparing bridge, in Crohn’s disease, although this may be more effective in children than adults.

Malnourished patients may also benefit from exclusive enteral nutrition prior to elective surgery for Crohn’s disease, Dr. Al Hashash and colleagues added, as this strategy can “optimize nutritional status and reduce postoperative complications.”

A Crohn’s disease exclusion diet, which involves partial enteral nutrition therapy, may be considered in mild or moderate cases, according to the update.

“Data on the use of enteral nutrition in the treatment of active ulcerative colitis are limited,” the panelists wrote, although early data suggest it is safe and well tolerated, and can improve prealbumin levels.
 

Parenteral Nutrition

The update recommends short-term parenteral nutrition for patients with phlegmonous inflammation and/or an intra-abdominal abscess, as this can act as a bridge to surgical intervention.

Patients with prolonged ileus, short bowel syndrome, or high-output gastrointestinal fistula may also be candidates for parenteral nutrition, as well as those who have tried and failed both oral and enteral nutrition.

Lastly, the update encourages transition from long-term parenteral nutrition to oral intake and customized hydration management “whenever possible.”
 

Monitoring and Multidisciplinary Care

Dr. Al Hashash and colleagues concluded by advising that all patients with complicated IBD be comanaged by a gastroenterologist and a registered dietitian, both of whom should remain watchful for signs of malnutrition.

Using serum protein as a surrogate marker of malnutrition is no longer recommended and there are different criteria that should be utilized to identify malnutrition. Routine iron and vitamin D testing are warranted, as well as B12 testing for patients with extensive ileal disease or a history of ileal surgery.

This clinical practice update was commissioned and approved by the AGA. The update panelists disclosed relationships with Merck, Celgene, Janssen, and others.

The American Gastroenterological Association (AGA) has released a clinical practice update on the role of diet and nutritional therapies in patients with inflammatory bowel disease (IBD).

The new guidance, authored by Jana G. Al Hashash, MD, MSc, AGAF, of Mayo Clinic, Jacksonville, Florida, and colleagues, includes 12 best practices that address dietary options, enteral and parenteral nutrition, patient monitoring, and the need for multidisciplinary care.

Mayo Clinic

“There is growing recognition of the role of diet in the care of patients with IBD, as both an etiopathogenic risk factor and, more recently, as a disease-modifying modality,” the update panelists wrote in Gastroenterology.

Historically, they noted, patients with IBD had been advised to avoid many different foods including fiber, but this strategy may result in unintended consequences.

“[T]hese approaches frequently led patients with IBD to avoid what are traditionally considered healthy foods, even after achieving clinical remission,” Dr. Al Hashash and colleagues wrote.

With an increasing body of data available for dietary interventions in both Crohn’s disease and ulcerative colitis, they wrote the present clinical practice update to offer some needed clarity.
 

A Starting Point

First, the panelists advise that, unless contraindicated, all patients with IBD follow a Mediterranean diet while minimizing salt, sugar, and ultraprocessed foods.

Patients with symptomatic intestinal strictures may struggle to digest raw fruits and vegetables due to their fibrous nature, they added, so these patients should first soften these foods through cooking, steaming, or “careful chewing” before consumption.

“No diet has consistently been found to decrease the rate of flares in adults with IBD,” the update panelists noted. “A diet low in red and processed meat may reduce ulcerative colitis flares, but has not been found to reduce relapse in Crohn’s disease.”

Beyond these dietary suggestions for adults, the update advises breastfeeding for newborns and a Mediterranean diet for children, as both may reduce risk of developing IBD.
 

Enteral Nutrition

The update suggests that exclusive enteral nutrition is a reasonable option to induce clinical remission and endoscopic response, or as a steroid-sparing bridge, in Crohn’s disease, although this may be more effective in children than adults.

Malnourished patients may also benefit from exclusive enteral nutrition prior to elective surgery for Crohn’s disease, Dr. Al Hashash and colleagues added, as this strategy can “optimize nutritional status and reduce postoperative complications.”

A Crohn’s disease exclusion diet, which involves partial enteral nutrition therapy, may be considered in mild or moderate cases, according to the update.

“Data on the use of enteral nutrition in the treatment of active ulcerative colitis are limited,” the panelists wrote, although early data suggest it is safe and well tolerated, and can improve prealbumin levels.
 

Parenteral Nutrition

The update recommends short-term parenteral nutrition for patients with phlegmonous inflammation and/or an intra-abdominal abscess, as this can act as a bridge to surgical intervention.

Patients with prolonged ileus, short bowel syndrome, or high-output gastrointestinal fistula may also be candidates for parenteral nutrition, as well as those who have tried and failed both oral and enteral nutrition.

Lastly, the update encourages transition from long-term parenteral nutrition to oral intake and customized hydration management “whenever possible.”
 

Monitoring and Multidisciplinary Care

Dr. Al Hashash and colleagues concluded by advising that all patients with complicated IBD be comanaged by a gastroenterologist and a registered dietitian, both of whom should remain watchful for signs of malnutrition.

Using serum protein as a surrogate marker of malnutrition is no longer recommended and there are different criteria that should be utilized to identify malnutrition. Routine iron and vitamin D testing are warranted, as well as B12 testing for patients with extensive ileal disease or a history of ileal surgery.

This clinical practice update was commissioned and approved by the AGA. The update panelists disclosed relationships with Merck, Celgene, Janssen, and others.

The American Gastroenterological Association (AGA) has released a clinical practice update on the role of diet and nutritional therapies in patients with inflammatory bowel disease (IBD).

The new guidance, authored by Jana G. Al Hashash, MD, MSc, AGAF, of Mayo Clinic, Jacksonville, Florida, and colleagues, includes 12 best practices that address dietary options, enteral and parenteral nutrition, patient monitoring, and the need for multidisciplinary care.

Mayo Clinic

“There is growing recognition of the role of diet in the care of patients with IBD, as both an etiopathogenic risk factor and, more recently, as a disease-modifying modality,” the update panelists wrote in Gastroenterology.

Historically, they noted, patients with IBD had been advised to avoid many different foods including fiber, but this strategy may result in unintended consequences.

“[T]hese approaches frequently led patients with IBD to avoid what are traditionally considered healthy foods, even after achieving clinical remission,” Dr. Al Hashash and colleagues wrote.

With an increasing body of data available for dietary interventions in both Crohn’s disease and ulcerative colitis, they wrote the present clinical practice update to offer some needed clarity.
 

A Starting Point

First, the panelists advise that, unless contraindicated, all patients with IBD follow a Mediterranean diet while minimizing salt, sugar, and ultraprocessed foods.

Patients with symptomatic intestinal strictures may struggle to digest raw fruits and vegetables due to their fibrous nature, they added, so these patients should first soften these foods through cooking, steaming, or “careful chewing” before consumption.

“No diet has consistently been found to decrease the rate of flares in adults with IBD,” the update panelists noted. “A diet low in red and processed meat may reduce ulcerative colitis flares, but has not been found to reduce relapse in Crohn’s disease.”

Beyond these dietary suggestions for adults, the update advises breastfeeding for newborns and a Mediterranean diet for children, as both may reduce risk of developing IBD.
 

Enteral Nutrition

The update suggests that exclusive enteral nutrition is a reasonable option to induce clinical remission and endoscopic response, or as a steroid-sparing bridge, in Crohn’s disease, although this may be more effective in children than adults.

Malnourished patients may also benefit from exclusive enteral nutrition prior to elective surgery for Crohn’s disease, Dr. Al Hashash and colleagues added, as this strategy can “optimize nutritional status and reduce postoperative complications.”

A Crohn’s disease exclusion diet, which involves partial enteral nutrition therapy, may be considered in mild or moderate cases, according to the update.

“Data on the use of enteral nutrition in the treatment of active ulcerative colitis are limited,” the panelists wrote, although early data suggest it is safe and well tolerated, and can improve prealbumin levels.
 

Parenteral Nutrition

The update recommends short-term parenteral nutrition for patients with phlegmonous inflammation and/or an intra-abdominal abscess, as this can act as a bridge to surgical intervention.

Patients with prolonged ileus, short bowel syndrome, or high-output gastrointestinal fistula may also be candidates for parenteral nutrition, as well as those who have tried and failed both oral and enteral nutrition.

Lastly, the update encourages transition from long-term parenteral nutrition to oral intake and customized hydration management “whenever possible.”
 

Monitoring and Multidisciplinary Care

Dr. Al Hashash and colleagues concluded by advising that all patients with complicated IBD be comanaged by a gastroenterologist and a registered dietitian, both of whom should remain watchful for signs of malnutrition.

Using serum protein as a surrogate marker of malnutrition is no longer recommended and there are different criteria that should be utilized to identify malnutrition. Routine iron and vitamin D testing are warranted, as well as B12 testing for patients with extensive ileal disease or a history of ileal surgery.

This clinical practice update was commissioned and approved by the AGA. The update panelists disclosed relationships with Merck, Celgene, Janssen, and others.

A new AGA white paper, published in Clinical Gastroenterology and Hepatology, highlights barriers to care and calls for collaboration among our healthcare community, insurers, pharmaceutical companies, and legislators to improve and optimize care for more than 3 million Americans living with inflammatory bowel disease (IBD).

Over the last two decades, there has been a revolution in therapeutics fueled by exciting research and development that continues to expand the treatment options for IBD, offering tools for better disease control. However, the most effective therapies are cost prohibitive and have largely become inaccessible due to insurer-mandated barriers to care, such as prior authorization and step therapy.

AGA has created a plan that addresses these barriers and proposes tangible solutions to provide patients with high quality, high value care.

1. The lived experiences and valuable insights from both patients and expert clinicians should be reflected in the data and research represented in the field.

2. AGA recognizes the powerful benefit of individually tailoring IBD therapy based on risk, comorbidities and response, and encourages all stakeholders to do the same.

3. As a field, we need to move beyond insurer-mandated step therapy and fail first policies.

4. AGA urges insurers to cover all necessary disease activity and drug level monitoring, which will ensure patients are able to achieve treat-to-target-driven outcomes.

5. Streamlined and expedited expert reviews should be guaranteed to all providers when they are mandated by an insurer.

6. To ensure transparency and accountability, AGA wants to require that payors publish their denial and appeals data.

7. AGA believes that holistic patient-centered multidisciplinary care, including psychosocial and dietary support, should be covered by insurance. Having access to such care contributes to improved patient resilience and well-being, which will lead to decreased health care utilization and better health outcomes.

8. AGA supports the creation and continuation of a variety of patient education programs to improve health literacy and awareness of complex health care systems.

9. AGA is committed to improving patients’ access to expert specialized clinical IBD care. This includes flexible delivery models to ensure that underserved populations are being reached. In addition, AGA supports training and educating specialty providers across the spectrum of medical care (advanced practice providers, nurse educators, etc.) to increase the number of qualified IBD providers.

10. Piloting innovative shared incentive partnerships between high value subspecialty care practices and payors will be a new shared goal.

11. AGA wants to engage pharmaceutical partners in developing equitable programs to address prohibitive drug costs while also expanding patient access and support.

12. AGA plans to continue to advocate for legislation to make access to therapy equitable for Medicare and Medicaid patients.

“Unaffordable drug costs, step therapy, and other insurer-mandated barriers are fixable problems,” said M. Anthony Sofia, MD, a coauthor of the AGA white paper and an IBD specialist at Oregon Health and Science University, Portland.

Oregon Health and Science University

“Every day, we see people that have been harmed by delayed and inadequate care. Solving these barriers would lift an unimaginable weight off our patient’s shoulders and allow them to lead healthier lives. We must work together to collaborate on solutions to strengthen and advance the care for all people with IBD.”

View the full white paper here.

A new AGA white paper, published in Clinical Gastroenterology and Hepatology, highlights barriers to care and calls for collaboration among our healthcare community, insurers, pharmaceutical companies, and legislators to improve and optimize care for more than 3 million Americans living with inflammatory bowel disease (IBD).

Over the last two decades, there has been a revolution in therapeutics fueled by exciting research and development that continues to expand the treatment options for IBD, offering tools for better disease control. However, the most effective therapies are cost prohibitive and have largely become inaccessible due to insurer-mandated barriers to care, such as prior authorization and step therapy.

AGA has created a plan that addresses these barriers and proposes tangible solutions to provide patients with high quality, high value care.

1. The lived experiences and valuable insights from both patients and expert clinicians should be reflected in the data and research represented in the field.

2. AGA recognizes the powerful benefit of individually tailoring IBD therapy based on risk, comorbidities and response, and encourages all stakeholders to do the same.

3. As a field, we need to move beyond insurer-mandated step therapy and fail first policies.

4. AGA urges insurers to cover all necessary disease activity and drug level monitoring, which will ensure patients are able to achieve treat-to-target-driven outcomes.

5. Streamlined and expedited expert reviews should be guaranteed to all providers when they are mandated by an insurer.

6. To ensure transparency and accountability, AGA wants to require that payors publish their denial and appeals data.

7. AGA believes that holistic patient-centered multidisciplinary care, including psychosocial and dietary support, should be covered by insurance. Having access to such care contributes to improved patient resilience and well-being, which will lead to decreased health care utilization and better health outcomes.

8. AGA supports the creation and continuation of a variety of patient education programs to improve health literacy and awareness of complex health care systems.

9. AGA is committed to improving patients’ access to expert specialized clinical IBD care. This includes flexible delivery models to ensure that underserved populations are being reached. In addition, AGA supports training and educating specialty providers across the spectrum of medical care (advanced practice providers, nurse educators, etc.) to increase the number of qualified IBD providers.

10. Piloting innovative shared incentive partnerships between high value subspecialty care practices and payors will be a new shared goal.

11. AGA wants to engage pharmaceutical partners in developing equitable programs to address prohibitive drug costs while also expanding patient access and support.

12. AGA plans to continue to advocate for legislation to make access to therapy equitable for Medicare and Medicaid patients.

“Unaffordable drug costs, step therapy, and other insurer-mandated barriers are fixable problems,” said M. Anthony Sofia, MD, a coauthor of the AGA white paper and an IBD specialist at Oregon Health and Science University, Portland.

Oregon Health and Science University

“Every day, we see people that have been harmed by delayed and inadequate care. Solving these barriers would lift an unimaginable weight off our patient’s shoulders and allow them to lead healthier lives. We must work together to collaborate on solutions to strengthen and advance the care for all people with IBD.”

View the full white paper here.

A new AGA white paper, published in Clinical Gastroenterology and Hepatology, highlights barriers to care and calls for collaboration among our healthcare community, insurers, pharmaceutical companies, and legislators to improve and optimize care for more than 3 million Americans living with inflammatory bowel disease (IBD).

Over the last two decades, there has been a revolution in therapeutics fueled by exciting research and development that continues to expand the treatment options for IBD, offering tools for better disease control. However, the most effective therapies are cost prohibitive and have largely become inaccessible due to insurer-mandated barriers to care, such as prior authorization and step therapy.

AGA has created a plan that addresses these barriers and proposes tangible solutions to provide patients with high quality, high value care.

1. The lived experiences and valuable insights from both patients and expert clinicians should be reflected in the data and research represented in the field.

2. AGA recognizes the powerful benefit of individually tailoring IBD therapy based on risk, comorbidities and response, and encourages all stakeholders to do the same.

3. As a field, we need to move beyond insurer-mandated step therapy and fail first policies.

4. AGA urges insurers to cover all necessary disease activity and drug level monitoring, which will ensure patients are able to achieve treat-to-target-driven outcomes.

5. Streamlined and expedited expert reviews should be guaranteed to all providers when they are mandated by an insurer.

6. To ensure transparency and accountability, AGA wants to require that payors publish their denial and appeals data.

7. AGA believes that holistic patient-centered multidisciplinary care, including psychosocial and dietary support, should be covered by insurance. Having access to such care contributes to improved patient resilience and well-being, which will lead to decreased health care utilization and better health outcomes.

8. AGA supports the creation and continuation of a variety of patient education programs to improve health literacy and awareness of complex health care systems.

9. AGA is committed to improving patients’ access to expert specialized clinical IBD care. This includes flexible delivery models to ensure that underserved populations are being reached. In addition, AGA supports training and educating specialty providers across the spectrum of medical care (advanced practice providers, nurse educators, etc.) to increase the number of qualified IBD providers.

10. Piloting innovative shared incentive partnerships between high value subspecialty care practices and payors will be a new shared goal.

11. AGA wants to engage pharmaceutical partners in developing equitable programs to address prohibitive drug costs while also expanding patient access and support.

12. AGA plans to continue to advocate for legislation to make access to therapy equitable for Medicare and Medicaid patients.

“Unaffordable drug costs, step therapy, and other insurer-mandated barriers are fixable problems,” said M. Anthony Sofia, MD, a coauthor of the AGA white paper and an IBD specialist at Oregon Health and Science University, Portland.

Oregon Health and Science University

“Every day, we see people that have been harmed by delayed and inadequate care. Solving these barriers would lift an unimaginable weight off our patient’s shoulders and allow them to lead healthier lives. We must work together to collaborate on solutions to strengthen and advance the care for all people with IBD.”

View the full white paper here.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — An artificial intelligence (AI)–assisted image-enhanced endoscopy system accurately assessed vascular healing and predicted long-term clinical relapse in patients with ulcerative colitis (UC), according to data from the study of a novel investigational tool. 

Clinical relapse was predicted in 3% of patients identified as having vascular healing in all segments compared with 23.9% in those with vascular activity (ie, one or more segments were active), reported Yasuharu Maeda, MD, gastroenterologist from Showa University Northern Yokohama Hospital, Digestive Disease Center, Yokohama, Japan.

In patients with a Mayo Endoscopic Score (MES) ≤ 1, the clinical relapse rate was 3% and 18.6% in the vascular healing and vascular active groups, respectively, he said. 

Endoscopic remission is a crucial treat-to-target goal in patients with UC, and image-enhanced endoscopy is spreading in routine practice as a way to detect inflammation and to predict outcomes, Dr. Maeda said. 

“Image-enhanced vascular findings lead to a stronger correlation with histological activities and long-term prognosis compared with white light endoscopy assessment,” he explained. “It also means that assessment can be done on-site without biopsy, pathologist effort, and associated costs; however, specialist training is required to achieve a high accuracy in outputs.” 

Dr. Maeda presented the data (Abstract OP16) at the annual congress of the European Crohn’s and Colitis Organisation.

Stratifying the Relapse Risk

Dr. Maeda and colleagues developed a novel AI-based narrow-band imaging system, training it by using 8853 images from 167 patients with UC. 

The AI system, EndoBRAIN-UC (Cybernet System Corp, Tokyo), is in use and currently adapted for only one endoscope, the Endocyto CFH290EC (Olympus EMEA, Tokyo), but for the purpose of this study, it was trained on images from five different scopes. 

“By combining narrow-band imaging and AI, we developed a system where we can differentiate between vascular activity and vascular healing. This allows us to predict relapse,” Dr. Maeda said.

In an open-label, prospective cohort study, they tested the system with the aim of assessing the efficacy of AI-identified vascular healing to stratify the relapse risk in 100 patients showing clinical remission of UC (ie, partial MES ≤ 1). 

Patient characteristics were similar between both groups with an average disease duration of 10 years. 

In the vascular healing group (n = 33), the average age was 52 years, 20% were men, 58% had extensive colitis, and 52% had a MES score of 0.

In the vascular active group (n = 67), the average age was 56 years, 32% were men, 61% had extensive colitis, and 25% had a MES score of 0.

Colonoscopy was performed using the AI system to identify mucosa as healing or active for six colorectal segments of each patient. The MES and histologic assessment for these segments were also recorded. Patients were then followed for up to 12 months and assessed for clinical relapse.

The clinical relapse rate was higher in the vascular active group than in the vascular healing group as identified by AI. 

“We only evaluated the diagnostic output of the AI but obtained white light endoscopies and biopsies for contrast studies,” Dr. Maeda noted.

They also looked at whether the endoscopist’s level of experience (ie, trainee or expert) was important but found that clinical relapse predictive values were independent of the endoscopist’s experience. 

Still in the Early Stages

AI-assisted colonoscopy work is still at an early stage , said session co-moderator, Monika Ferlitsch, MD, head of Internal Medicine Department II, gastroenterology and hepatology, Evangelical Hospital, in Vienna, Austria. 

We now have initial results, but “I suspect it will take 10-20 years for implementation into routine clinical practice,” she said. 

The best outcome for our patients is to be able to predict response to therapy and recurrence rates, “and we see this is possible now with AI. But of course, we need more clinical data to support it,” Dr. Ferlitsch said.

Dr. Maeda and Dr. Ferlitsch have declared no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Eight live bacterial strains have been identified as having the potential to regulate the inflammatory imbalance in the gut microbiome of patients with mild to moderate ulcerative colitis (UC). 

The eight-strain live biotherapeutic product (MB310, Microbiotica) is due to enter its first clinical trial later this year.

In patients with UC who showed clinical benefit after fecal microbiota transplantation (FMT), these eight specific bacterial strains were shown to be consistently elevated, reported Ron Carter, MD, chief medical officer at Microbiotica, Cambridge, UK, the company developing the product. 

In addition, “in lab studies, we’ve found they exhibit anti-inflammatory effects when incubated with different cells of the immune system,” he explained. With the biotherapeutic product, “we want to prompt the immune system to realign the gut inflammation” in UC.

On February 23, at the annual congress of the European Crohn’s and Colitis Organisation, Dr. Carter presented the work-to-date and the near-term plans for a phase 1b randomized, placebo-controlled, double-blind trial to be conducted across roughly 20 sites in Europe (Abstract DOP 67). The trial, COMPOSER-1, will investigate the engraftment and initial signs of clinical activity of MB310 in 30 patients with active, mild to moderate UC (modified Mayo score 4-7; endoscopic subscore ≥ 2).

 Calming Inflammation With Specific Bacteria 

To date, the researchers have focused on identifying bacterial species that correlate with clinical outcomes in individual patients with UC after treatment with FMT. Dr. Carter and colleagues worked in collaboration with Sam Costello, MBBS, gastroenterologist at The Queen Elizabeth Hospital in Adelaide, Australia.

The initial research involved analyzing stool samples from a round 70 patients diagnosed with mild to moderate UC, who were randomly assigned to receive either pooled, anaerobically prepared, healthy donor FMT, or their own autologous FMT as a comparative control. FMT was delivered via colonoscopy and two enemas over 7 days. The primary endpoint of the study was achieving steroid-free remission of UC on the basis of specific Mayo scores, at the end of week 8.

“Results indicated that the group receiving the pooled donor FMT showed a 32% success rate with respect to the primary outcome compared with only 9% of the control group,” said Dr. Carter. “This suggested a promising therapeutic strategy.”

Based on these outcomes, Microbiotica then decided to conduct a local study in which they analyzed fecal samples from FMT donors and from pre-FMT and post-FMT recipients in order to precisely identify which bacterial species were associated with clinical response. 

“With our precision microbiome analysis platform, we determined eight bacterial species that were consistently elevated in FMT responders, but absent or not elevated in non-responders,” reported Dr. Carter.

Next, they carried out subspecies-level bioinformatic analysis and identified one bacterial strain from each of the eight species, which were then cultured individually, freeze-dried, and combined into a custom delayed-release capsule. 

The researchers tested the resulting live biotherapeutic product in cellular assays using human cell lines to confirm that they effectively modulated immune functions. 

The cellular assays showed that in epithelial cell monolayer tests, MB310 not only enhanced barrier integrity but also protected the cellular barrier from inflammation. 

The eight bacterial strain combination also exhibited anti-inflammatory effects when incubated with different primary innate immune cells, dendritic cells, and M1 macrophages. 

And, Dr. Carter emphasized, the specific MB310 bacterial strains were found to regulate T-cells directly or via metabolites.

Moving in the Right Direction

Julien Kirchgesner, MD, Saint-Antoine Hospital and Sorbonne University, Paris, France, who co-moderated the session where the research was presented, welcomed the work.

“Many more trials need to be done before we see this enter the clinic, but this is moving in the right direction,” Dr. Kirchgesner noted.

“We need to find only the functionally active bacterial strains, rather than just take the fecal transplant alone [as is done with FMT],” he said. That is what is being done here.

“The researchers want to identify which bacterial strains will impact the effectiveness in patients, and to select for these strains before industrializing the process and producing them at the optimal strength, at scale,” Dr. Kirchgesner said.

Dr. Carter is chief medical officer at Microbiotica and Dr Kirshgensner has no financial disclosures.

A version of this article appeared on Medscape.com.

STOCKHOLM — Long-term data on risankizumab (Skyrizi) in moderate to severe Crohn’s disease (CD) show that clinical remission and endoscopic response rates remain stable for up to 3 years, according to results of the FORTIFY extension study.

“For me, most striking are the endoscopic endpoints,” Marc Ferrante, MD, PhD, AGAF, said in an interview. In the most conservative analysis, “you see a benefit the longer you follow the patients ... We haven’t seen this with many — if any — other compounds before.”

Dr. Ferrante, from University Hospitals Leuven in Belgium, added that patients showed less antibody formation in response to risankizumab, an anti-interleukin (IL)–23 p19 inhibitor, compared with anti–tumor necrosis factor agents. 

University Hospitals Leuven

“Most patients seemed to continue on treatment without the formation of antibodies to risankizumab becoming a problem,” he said. Also, for patients who achieve a good response to risankizumab, the effects were the same whether “they received this biologic first line, or only after failing other compounds.”

Generally, “I think we all have the impression that the IL-23 inhibitors have good efficacy, probably even better than other compounds available,” said Dr. Ferrante. “And, importantly, this is true without any increased adverse effects.”

“Now, with these new long-term data in risankizumab, we see the benefit-risk ratio continues to be favorable,” he added.

Dr. Ferrante presented the data (Abstract DOP 53) on February 23 at the annual congress of the European Crohn’s and Colitis Organisation.
 

Open-Label Extension up to 152 Weeks

The ongoing FORTIFY maintenance open-label extension study is evaluating the long-term efficacy and safety of risankizumab in patients with moderate to severe CD. 

These data follow the initial 52-week study published in 2022 showing that subcutaneous risankizumab was a safe and efficacious treatment for maintenance of remission in patients with moderately to severely active CD. Dr. Ferrante also led that study.

Participants in this open-label extension study who had already completed 52-weeks maintenance dosing received 180-mg subcutaneous risankizumab every 8 weeks (n = 872) at week 56. Those who had received prior rescue therapy, a single 1200-mg intravenous risankizumab dose followed by 360-mg subcutaneously every 8 weeks, continued with this latter regimen (n = 275). Data for analysis were pooled from both treatment groups (risankizumab 180 mg and 360 mg), and clinical outcomes were evaluated every 6 months. 

Data for the population, after patients who received rescue treatment were imputed as nonresponders, showed Clinical Disease Activity Index (CDAI) clinical response of 84.9% at week 56 and 52.7% at week 152. CDAI clinical remission was 66.7% at week 56 and 47.2% at week 152 for this population. 

For endoscopic outcomes, additional benefit was seen over time. Endoscopic response, considered to be the best available predictor of long-term outcomes, was 50.8% at week 56 and 52.5% at week 152. Endoscopic remission was 35.8% at week 56 and 41.8% at week 152, and ulcer-free endoscopy was seen in 28.6% patients at week 56 and 35.5% at week 152.

The safety profile of risankizumab is consistent and supports long-term treatment, Dr. Ferrante said. 

Treatment emergent adverse events included major adverse cardiovascular events in five patients on risankizumab and 50 serious infections.
 

‘Effective and Durable Option’

Providing comment, Tim Raine, MD, a consultant gastroenterologist & IBD lead at Cambridge University Hospitals, United Kingdom, remarked on the value of long-term extension studies for understanding the impact of continued drug administration beyond the typical 1-year time horizon of registrational clinical trials given that CD is currently incurable.

“However, there are limitations with long-term extension studies,” he said in an interview. In particular, the patients who remain in the study tend to be “those who have had a good experience with the drug and remain motivated to take part in ongoing monitoring.” 

But “patients will drop out of a long-term extension study for reasons that may or may not reflect loss of benefit from the drug, and this can be problematic with handling of missing data,” he explained.

In light of this issue, “the investigators have used the most stringent way of handling these patients, regarding all who drop out as instances of failure of the drug. This offers the most robust assessment of durability of response that may slightly underestimate the true long-term efficacy,” said Dr. Raine. 

“Nevertheless, the response and remission rates for clinical endpoints suggest good durability of effect out to 3 years of follow-up. The endoscopic data are also encouraging,” he asserted. 

“Taken together, these data suggest that risankizumab can offer an effective and durable option for some patients with Crohn’s disease and is associated with a favorable safety profile.”

Dr. Ferrante disclosed ties with AbbVie, Agomab Therapeutics, Amgen, Biogen, Boehringer Ingelheim, Celgene, Celltrion, EG, Eli Lilly, Falk, Ferring, Janssen, Janssen-Cilag, Lamepro, Medtronic, MRM, MSD, Pfizer, Regeneron, Samsung Bioepis, Sandoz, Takeda, ThermoFisher, Truvion Healthcare, and Viatris. Dr. Raine disclosed ties with AbbVie, Arena, Aslan, AstraZeneca, Boehringer-Ingelheim, BMS, Celgene, Ferring, Galapagos, Gilead, GSK, Heptares, LabGenius, Janssen, Mylan, MSD, Novartis, Pfizer, Sandoz, Takeda, and UCB.

A version of this article appeared on Medscape.com.

STOCKHOLM — Long-term data on risankizumab (Skyrizi) in moderate to severe Crohn’s disease (CD) show that clinical remission and endoscopic response rates remain stable for up to 3 years, according to results of the FORTIFY extension study.

“For me, most striking are the endoscopic endpoints,” Marc Ferrante, MD, PhD, AGAF, said in an interview. In the most conservative analysis, “you see a benefit the longer you follow the patients ... We haven’t seen this with many — if any — other compounds before.”

Dr. Ferrante, from University Hospitals Leuven in Belgium, added that patients showed less antibody formation in response to risankizumab, an anti-interleukin (IL)–23 p19 inhibitor, compared with anti–tumor necrosis factor agents. 

University Hospitals Leuven

“Most patients seemed to continue on treatment without the formation of antibodies to risankizumab becoming a problem,” he said. Also, for patients who achieve a good response to risankizumab, the effects were the same whether “they received this biologic first line, or only after failing other compounds.”

Generally, “I think we all have the impression that the IL-23 inhibitors have good efficacy, probably even better than other compounds available,” said Dr. Ferrante. “And, importantly, this is true without any increased adverse effects.”

“Now, with these new long-term data in risankizumab, we see the benefit-risk ratio continues to be favorable,” he added.

Dr. Ferrante presented the data (Abstract DOP 53) on February 23 at the annual congress of the European Crohn’s and Colitis Organisation.
 

Open-Label Extension up to 152 Weeks

The ongoing FORTIFY maintenance open-label extension study is evaluating the long-term efficacy and safety of risankizumab in patients with moderate to severe CD. 

These data follow the initial 52-week study published in 2022 showing that subcutaneous risankizumab was a safe and efficacious treatment for maintenance of remission in patients with moderately to severely active CD. Dr. Ferrante also led that study.

Participants in this open-label extension study who had already completed 52-weeks maintenance dosing received 180-mg subcutaneous risankizumab every 8 weeks (n = 872) at week 56. Those who had received prior rescue therapy, a single 1200-mg intravenous risankizumab dose followed by 360-mg subcutaneously every 8 weeks, continued with this latter regimen (n = 275). Data for analysis were pooled from both treatment groups (risankizumab 180 mg and 360 mg), and clinical outcomes were evaluated every 6 months. 

Data for the population, after patients who received rescue treatment were imputed as nonresponders, showed Clinical Disease Activity Index (CDAI) clinical response of 84.9% at week 56 and 52.7% at week 152. CDAI clinical remission was 66.7% at week 56 and 47.2% at week 152 for this population. 

For endoscopic outcomes, additional benefit was seen over time. Endoscopic response, considered to be the best available predictor of long-term outcomes, was 50.8% at week 56 and 52.5% at week 152. Endoscopic remission was 35.8% at week 56 and 41.8% at week 152, and ulcer-free endoscopy was seen in 28.6% patients at week 56 and 35.5% at week 152.

The safety profile of risankizumab is consistent and supports long-term treatment, Dr. Ferrante said. 

Treatment emergent adverse events included major adverse cardiovascular events in five patients on risankizumab and 50 serious infections.
 

‘Effective and Durable Option’

Providing comment, Tim Raine, MD, a consultant gastroenterologist & IBD lead at Cambridge University Hospitals, United Kingdom, remarked on the value of long-term extension studies for understanding the impact of continued drug administration beyond the typical 1-year time horizon of registrational clinical trials given that CD is currently incurable.

“However, there are limitations with long-term extension studies,” he said in an interview. In particular, the patients who remain in the study tend to be “those who have had a good experience with the drug and remain motivated to take part in ongoing monitoring.” 

But “patients will drop out of a long-term extension study for reasons that may or may not reflect loss of benefit from the drug, and this can be problematic with handling of missing data,” he explained.

In light of this issue, “the investigators have used the most stringent way of handling these patients, regarding all who drop out as instances of failure of the drug. This offers the most robust assessment of durability of response that may slightly underestimate the true long-term efficacy,” said Dr. Raine. 

“Nevertheless, the response and remission rates for clinical endpoints suggest good durability of effect out to 3 years of follow-up. The endoscopic data are also encouraging,” he asserted. 

“Taken together, these data suggest that risankizumab can offer an effective and durable option for some patients with Crohn’s disease and is associated with a favorable safety profile.”

Dr. Ferrante disclosed ties with AbbVie, Agomab Therapeutics, Amgen, Biogen, Boehringer Ingelheim, Celgene, Celltrion, EG, Eli Lilly, Falk, Ferring, Janssen, Janssen-Cilag, Lamepro, Medtronic, MRM, MSD, Pfizer, Regeneron, Samsung Bioepis, Sandoz, Takeda, ThermoFisher, Truvion Healthcare, and Viatris. Dr. Raine disclosed ties with AbbVie, Arena, Aslan, AstraZeneca, Boehringer-Ingelheim, BMS, Celgene, Ferring, Galapagos, Gilead, GSK, Heptares, LabGenius, Janssen, Mylan, MSD, Novartis, Pfizer, Sandoz, Takeda, and UCB.

A version of this article appeared on Medscape.com.

STOCKHOLM — Long-term data on risankizumab (Skyrizi) in moderate to severe Crohn’s disease (CD) show that clinical remission and endoscopic response rates remain stable for up to 3 years, according to results of the FORTIFY extension study.

“For me, most striking are the endoscopic endpoints,” Marc Ferrante, MD, PhD, AGAF, said in an interview. In the most conservative analysis, “you see a benefit the longer you follow the patients ... We haven’t seen this with many — if any — other compounds before.”

Dr. Ferrante, from University Hospitals Leuven in Belgium, added that patients showed less antibody formation in response to risankizumab, an anti-interleukin (IL)–23 p19 inhibitor, compared with anti–tumor necrosis factor agents. 

University Hospitals Leuven

“Most patients seemed to continue on treatment without the formation of antibodies to risankizumab becoming a problem,” he said. Also, for patients who achieve a good response to risankizumab, the effects were the same whether “they received this biologic first line, or only after failing other compounds.”

Generally, “I think we all have the impression that the IL-23 inhibitors have good efficacy, probably even better than other compounds available,” said Dr. Ferrante. “And, importantly, this is true without any increased adverse effects.”

“Now, with these new long-term data in risankizumab, we see the benefit-risk ratio continues to be favorable,” he added.

Dr. Ferrante presented the data (Abstract DOP 53) on February 23 at the annual congress of the European Crohn’s and Colitis Organisation.
 

Open-Label Extension up to 152 Weeks

The ongoing FORTIFY maintenance open-label extension study is evaluating the long-term efficacy and safety of risankizumab in patients with moderate to severe CD. 

These data follow the initial 52-week study published in 2022 showing that subcutaneous risankizumab was a safe and efficacious treatment for maintenance of remission in patients with moderately to severely active CD. Dr. Ferrante also led that study.

Participants in this open-label extension study who had already completed 52-weeks maintenance dosing received 180-mg subcutaneous risankizumab every 8 weeks (n = 872) at week 56. Those who had received prior rescue therapy, a single 1200-mg intravenous risankizumab dose followed by 360-mg subcutaneously every 8 weeks, continued with this latter regimen (n = 275). Data for analysis were pooled from both treatment groups (risankizumab 180 mg and 360 mg), and clinical outcomes were evaluated every 6 months. 

Data for the population, after patients who received rescue treatment were imputed as nonresponders, showed Clinical Disease Activity Index (CDAI) clinical response of 84.9% at week 56 and 52.7% at week 152. CDAI clinical remission was 66.7% at week 56 and 47.2% at week 152 for this population. 

For endoscopic outcomes, additional benefit was seen over time. Endoscopic response, considered to be the best available predictor of long-term outcomes, was 50.8% at week 56 and 52.5% at week 152. Endoscopic remission was 35.8% at week 56 and 41.8% at week 152, and ulcer-free endoscopy was seen in 28.6% patients at week 56 and 35.5% at week 152.

The safety profile of risankizumab is consistent and supports long-term treatment, Dr. Ferrante said. 

Treatment emergent adverse events included major adverse cardiovascular events in five patients on risankizumab and 50 serious infections.
 

‘Effective and Durable Option’

Providing comment, Tim Raine, MD, a consultant gastroenterologist & IBD lead at Cambridge University Hospitals, United Kingdom, remarked on the value of long-term extension studies for understanding the impact of continued drug administration beyond the typical 1-year time horizon of registrational clinical trials given that CD is currently incurable.

“However, there are limitations with long-term extension studies,” he said in an interview. In particular, the patients who remain in the study tend to be “those who have had a good experience with the drug and remain motivated to take part in ongoing monitoring.” 

But “patients will drop out of a long-term extension study for reasons that may or may not reflect loss of benefit from the drug, and this can be problematic with handling of missing data,” he explained.

In light of this issue, “the investigators have used the most stringent way of handling these patients, regarding all who drop out as instances of failure of the drug. This offers the most robust assessment of durability of response that may slightly underestimate the true long-term efficacy,” said Dr. Raine. 

“Nevertheless, the response and remission rates for clinical endpoints suggest good durability of effect out to 3 years of follow-up. The endoscopic data are also encouraging,” he asserted. 

“Taken together, these data suggest that risankizumab can offer an effective and durable option for some patients with Crohn’s disease and is associated with a favorable safety profile.”

Dr. Ferrante disclosed ties with AbbVie, Agomab Therapeutics, Amgen, Biogen, Boehringer Ingelheim, Celgene, Celltrion, EG, Eli Lilly, Falk, Ferring, Janssen, Janssen-Cilag, Lamepro, Medtronic, MRM, MSD, Pfizer, Regeneron, Samsung Bioepis, Sandoz, Takeda, ThermoFisher, Truvion Healthcare, and Viatris. Dr. Raine disclosed ties with AbbVie, Arena, Aslan, AstraZeneca, Boehringer-Ingelheim, BMS, Celgene, Ferring, Galapagos, Gilead, GSK, Heptares, LabGenius, Janssen, Mylan, MSD, Novartis, Pfizer, Sandoz, Takeda, and UCB.

A version of this article appeared on Medscape.com.

STOCKHOLM — A proactive treat-to-target strategy in patients with Crohn’s disease (CD) who are in remission but are considered to be high risk as determined by video capsule endoscopy was superior for prevention of clinical flare within the next 2 years compared with continued standard care, a new study showed.

Capsule endoscopy reveals small-intestinal inflammation in over 70% of patients with CD who are in clinical remission, said Shomron Ben-Horin, MD, from Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel. The question remains however, which patients would benefit from treatment intensification. 

The randomized controlled CURE-CD trial showed that patients who have high inflammatory activity — a Lewis score ≥ 350 as seen in video capsule endoscopy findings — experienced statistically significantly fewer relapses during the 2-year follow-up vs patients with the same amount of inflammation who continued their standard treatment, he said.

Dr. Ben-Horin presented the results at the annual congress of the European Crohn’s and Colitis Organisation on behalf of the Israeli IBD Research Nucleus. 

He and his colleagues aimed to examine the value of video capsule endoscopy to guide proactive treat-to-target strategy in patients with CD who are in clinical remission, adding onto their previous work published in 2019 that established the benefit of video capsule endoscopy over calprotectin in predicting relapse. 

The prospective randomized controlled trial recruited 60 patients with CD involving the small bowel who were in clinical remission (Crohn’s Disease Activity Index [CDAI] < 150). Patients underwent clinical, biomarker, and imaging checks as well as video capsule endoscopies at baseline and every 6 months thereafter for up to 24 months. 

A total of 40 patients with a Lewis score ≥ 350 and who were considered high-risk were randomized to either proactive treatment optimization (targeting video capsule endoscopy mucosal healing, n = 20) or to continued standard care (n = 20) for 24 months. Patients with a Lewis score < 350 who were considered to be low-risk continued standard care (n = 20) which may or may not have been biologic. 

The primary outcome was the rate of clinical relapse (disease exacerbation comprised of a CDAI increase > 70 points or hospitalization/surgery) by 24 months in high-risk patients who received standard care vs proactive care. 

Secondary outcomes included risk for flare in the low-risk group (all on standard care) vs the high-risk group also on standard care, predictive profiles for flare of calprotectin, MRI, intestinal ultrasound, and Lewis score over the 24 months. 
 

A Nearly Threefold Difference

Treatment intensification in the high-risk proactive strategy group was split between therapeutic drug monitoring–based biologic dose-escalation (n = 11 in 20), starting a biologic (8 in 20), or swapping a biologic (1 in 20). 

By 24 months, clinical flare occurred in 5 in 20 (25%) of the high-risk proactive group vs 14 (70%) of the high-risk standard-care group (odds ratio [OR], 0.14; 95% CI, 0.04-0.57; P = .006), Dr. Ben-Horin reported. 

The data also showed that low-risk patients had a lower incidence of clinical flare at approximately 45% compared with 70% in high-risk patients also on standard care (P = .11 by intention-to-treat analysis; P = .06 by per-protocol analysis).

In an interview, Dr. Ben-Horin said that despite the results, there remained a “big dilemma” about who should be treated if they show mucosal inflammation on video capsule endoscopy. 

“Crohn’s disease is a progressive disease, and we don’t want flares down the road in a patient that currently feels okay but has underlying inflammation,” he said. “On the other hand, it’s important to consider that our therapies are sometimes associated with adverse events, they can be very costly, and become a huge burden to our healthcare systems and to some of the patients.” 

It is important to ask whether we should or treat patients in remission more aggressively “because not everyone will progress and some of them may never flare,” he explained. 

The findings offer three layers of added evidence to the field, Dr. Ben-Horin said. First, it offers further support to the treat-to-target approach if tailored to a high-risk group. Second, the study suggests that treat-to-target studies should be looking only at the high-risk patients and not the entire study population. “This is the first study of its kind to take this approach,” he pointed out. 

“Thirdly, our results build on our preceding trial to show that using video capsule endoscopy enables us to stratify the risk of patients’ with small-bowel Crohn’s disease and tailor their treatment accordingly, probably more accurately than calprotectin or C-reactive protein.”

Asked to comment on the results, Maria Abreu, MD, AGAF, a gastroenterologist who specializes in inflammatory bowel disease at the University of Miami, Miami, Florida, said that though it was a small study, it highlights that patients need to be closely monitored with objective, quantifiable tests for the best outcomes. 

She continued: “Capsule endoscopy is certainly the most sensitive test we have and lends itself in short order to artificial intelligence interpretation and quantification to make it even more robust.”

“We now need to nuance who needs a capsule vs intestinal ultrasound vs a colonoscopy, and that is likely to depend on disease location and manifestations of the disease,” ie, mucosa-only or transmural-predominant disease, she noted. 

Dr. Ben-Horin has declared that the trial was funded by the Helmsley Charitable Trust. The VCE was partly provided by Medtronic. He disclosed advisory board fees and/or consulting and/or research support from Janssen, AbbVie, CellTrion, Takeda, Schering Plough, Pfizer, Ferring, Falk Pharma, GlaxoSmithKline, Novartis, Roche, Galmed, EviNature, Galmed, PredictaMed, NeoPharm. 

Dr. Abreu has served as a consultant and scientific advisory board member for AbbVie, Arena Pharmaceuticals, Bristol-Myers Squibb, Eli Lilly Pharmaceuticals, Gilead, Janssen Biotech, and Prometheus Biosciences, University of California, Berkeley; a speaker for Alimentiv; and has had projects funded by Pfizer, Prometheus Laboratories, and Takeda Pharmaceuticals.

A version of this article appeared on Medscape.com.

STOCKHOLM — A proactive treat-to-target strategy in patients with Crohn’s disease (CD) who are in remission but are considered to be high risk as determined by video capsule endoscopy was superior for prevention of clinical flare within the next 2 years compared with continued standard care, a new study showed.

Capsule endoscopy reveals small-intestinal inflammation in over 70% of patients with CD who are in clinical remission, said Shomron Ben-Horin, MD, from Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel. The question remains however, which patients would benefit from treatment intensification. 

The randomized controlled CURE-CD trial showed that patients who have high inflammatory activity — a Lewis score ≥ 350 as seen in video capsule endoscopy findings — experienced statistically significantly fewer relapses during the 2-year follow-up vs patients with the same amount of inflammation who continued their standard treatment, he said.

Dr. Ben-Horin presented the results at the annual congress of the European Crohn’s and Colitis Organisation on behalf of the Israeli IBD Research Nucleus. 

He and his colleagues aimed to examine the value of video capsule endoscopy to guide proactive treat-to-target strategy in patients with CD who are in clinical remission, adding onto their previous work published in 2019 that established the benefit of video capsule endoscopy over calprotectin in predicting relapse. 

The prospective randomized controlled trial recruited 60 patients with CD involving the small bowel who were in clinical remission (Crohn’s Disease Activity Index [CDAI] < 150). Patients underwent clinical, biomarker, and imaging checks as well as video capsule endoscopies at baseline and every 6 months thereafter for up to 24 months. 

A total of 40 patients with a Lewis score ≥ 350 and who were considered high-risk were randomized to either proactive treatment optimization (targeting video capsule endoscopy mucosal healing, n = 20) or to continued standard care (n = 20) for 24 months. Patients with a Lewis score < 350 who were considered to be low-risk continued standard care (n = 20) which may or may not have been biologic. 

The primary outcome was the rate of clinical relapse (disease exacerbation comprised of a CDAI increase > 70 points or hospitalization/surgery) by 24 months in high-risk patients who received standard care vs proactive care. 

Secondary outcomes included risk for flare in the low-risk group (all on standard care) vs the high-risk group also on standard care, predictive profiles for flare of calprotectin, MRI, intestinal ultrasound, and Lewis score over the 24 months. 
 

A Nearly Threefold Difference

Treatment intensification in the high-risk proactive strategy group was split between therapeutic drug monitoring–based biologic dose-escalation (n = 11 in 20), starting a biologic (8 in 20), or swapping a biologic (1 in 20). 

By 24 months, clinical flare occurred in 5 in 20 (25%) of the high-risk proactive group vs 14 (70%) of the high-risk standard-care group (odds ratio [OR], 0.14; 95% CI, 0.04-0.57; P = .006), Dr. Ben-Horin reported. 

The data also showed that low-risk patients had a lower incidence of clinical flare at approximately 45% compared with 70% in high-risk patients also on standard care (P = .11 by intention-to-treat analysis; P = .06 by per-protocol analysis).

In an interview, Dr. Ben-Horin said that despite the results, there remained a “big dilemma” about who should be treated if they show mucosal inflammation on video capsule endoscopy. 

“Crohn’s disease is a progressive disease, and we don’t want flares down the road in a patient that currently feels okay but has underlying inflammation,” he said. “On the other hand, it’s important to consider that our therapies are sometimes associated with adverse events, they can be very costly, and become a huge burden to our healthcare systems and to some of the patients.” 

It is important to ask whether we should or treat patients in remission more aggressively “because not everyone will progress and some of them may never flare,” he explained. 

The findings offer three layers of added evidence to the field, Dr. Ben-Horin said. First, it offers further support to the treat-to-target approach if tailored to a high-risk group. Second, the study suggests that treat-to-target studies should be looking only at the high-risk patients and not the entire study population. “This is the first study of its kind to take this approach,” he pointed out. 

“Thirdly, our results build on our preceding trial to show that using video capsule endoscopy enables us to stratify the risk of patients’ with small-bowel Crohn’s disease and tailor their treatment accordingly, probably more accurately than calprotectin or C-reactive protein.”

Asked to comment on the results, Maria Abreu, MD, AGAF, a gastroenterologist who specializes in inflammatory bowel disease at the University of Miami, Miami, Florida, said that though it was a small study, it highlights that patients need to be closely monitored with objective, quantifiable tests for the best outcomes. 

She continued: “Capsule endoscopy is certainly the most sensitive test we have and lends itself in short order to artificial intelligence interpretation and quantification to make it even more robust.”

“We now need to nuance who needs a capsule vs intestinal ultrasound vs a colonoscopy, and that is likely to depend on disease location and manifestations of the disease,” ie, mucosa-only or transmural-predominant disease, she noted. 

Dr. Ben-Horin has declared that the trial was funded by the Helmsley Charitable Trust. The VCE was partly provided by Medtronic. He disclosed advisory board fees and/or consulting and/or research support from Janssen, AbbVie, CellTrion, Takeda, Schering Plough, Pfizer, Ferring, Falk Pharma, GlaxoSmithKline, Novartis, Roche, Galmed, EviNature, Galmed, PredictaMed, NeoPharm. 

Dr. Abreu has served as a consultant and scientific advisory board member for AbbVie, Arena Pharmaceuticals, Bristol-Myers Squibb, Eli Lilly Pharmaceuticals, Gilead, Janssen Biotech, and Prometheus Biosciences, University of California, Berkeley; a speaker for Alimentiv; and has had projects funded by Pfizer, Prometheus Laboratories, and Takeda Pharmaceuticals.

A version of this article appeared on Medscape.com.

STOCKHOLM — A proactive treat-to-target strategy in patients with Crohn’s disease (CD) who are in remission but are considered to be high risk as determined by video capsule endoscopy was superior for prevention of clinical flare within the next 2 years compared with continued standard care, a new study showed.

Capsule endoscopy reveals small-intestinal inflammation in over 70% of patients with CD who are in clinical remission, said Shomron Ben-Horin, MD, from Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel. The question remains however, which patients would benefit from treatment intensification. 

The randomized controlled CURE-CD trial showed that patients who have high inflammatory activity — a Lewis score ≥ 350 as seen in video capsule endoscopy findings — experienced statistically significantly fewer relapses during the 2-year follow-up vs patients with the same amount of inflammation who continued their standard treatment, he said.

Dr. Ben-Horin presented the results at the annual congress of the European Crohn’s and Colitis Organisation on behalf of the Israeli IBD Research Nucleus. 

He and his colleagues aimed to examine the value of video capsule endoscopy to guide proactive treat-to-target strategy in patients with CD who are in clinical remission, adding onto their previous work published in 2019 that established the benefit of video capsule endoscopy over calprotectin in predicting relapse. 

The prospective randomized controlled trial recruited 60 patients with CD involving the small bowel who were in clinical remission (Crohn’s Disease Activity Index [CDAI] < 150). Patients underwent clinical, biomarker, and imaging checks as well as video capsule endoscopies at baseline and every 6 months thereafter for up to 24 months. 

A total of 40 patients with a Lewis score ≥ 350 and who were considered high-risk were randomized to either proactive treatment optimization (targeting video capsule endoscopy mucosal healing, n = 20) or to continued standard care (n = 20) for 24 months. Patients with a Lewis score < 350 who were considered to be low-risk continued standard care (n = 20) which may or may not have been biologic. 

The primary outcome was the rate of clinical relapse (disease exacerbation comprised of a CDAI increase > 70 points or hospitalization/surgery) by 24 months in high-risk patients who received standard care vs proactive care. 

Secondary outcomes included risk for flare in the low-risk group (all on standard care) vs the high-risk group also on standard care, predictive profiles for flare of calprotectin, MRI, intestinal ultrasound, and Lewis score over the 24 months. 
 

A Nearly Threefold Difference

Treatment intensification in the high-risk proactive strategy group was split between therapeutic drug monitoring–based biologic dose-escalation (n = 11 in 20), starting a biologic (8 in 20), or swapping a biologic (1 in 20). 

By 24 months, clinical flare occurred in 5 in 20 (25%) of the high-risk proactive group vs 14 (70%) of the high-risk standard-care group (odds ratio [OR], 0.14; 95% CI, 0.04-0.57; P = .006), Dr. Ben-Horin reported. 

The data also showed that low-risk patients had a lower incidence of clinical flare at approximately 45% compared with 70% in high-risk patients also on standard care (P = .11 by intention-to-treat analysis; P = .06 by per-protocol analysis).

In an interview, Dr. Ben-Horin said that despite the results, there remained a “big dilemma” about who should be treated if they show mucosal inflammation on video capsule endoscopy. 

“Crohn’s disease is a progressive disease, and we don’t want flares down the road in a patient that currently feels okay but has underlying inflammation,” he said. “On the other hand, it’s important to consider that our therapies are sometimes associated with adverse events, they can be very costly, and become a huge burden to our healthcare systems and to some of the patients.” 

It is important to ask whether we should or treat patients in remission more aggressively “because not everyone will progress and some of them may never flare,” he explained. 

The findings offer three layers of added evidence to the field, Dr. Ben-Horin said. First, it offers further support to the treat-to-target approach if tailored to a high-risk group. Second, the study suggests that treat-to-target studies should be looking only at the high-risk patients and not the entire study population. “This is the first study of its kind to take this approach,” he pointed out. 

“Thirdly, our results build on our preceding trial to show that using video capsule endoscopy enables us to stratify the risk of patients’ with small-bowel Crohn’s disease and tailor their treatment accordingly, probably more accurately than calprotectin or C-reactive protein.”

Asked to comment on the results, Maria Abreu, MD, AGAF, a gastroenterologist who specializes in inflammatory bowel disease at the University of Miami, Miami, Florida, said that though it was a small study, it highlights that patients need to be closely monitored with objective, quantifiable tests for the best outcomes. 

She continued: “Capsule endoscopy is certainly the most sensitive test we have and lends itself in short order to artificial intelligence interpretation and quantification to make it even more robust.”

“We now need to nuance who needs a capsule vs intestinal ultrasound vs a colonoscopy, and that is likely to depend on disease location and manifestations of the disease,” ie, mucosa-only or transmural-predominant disease, she noted. 

Dr. Ben-Horin has declared that the trial was funded by the Helmsley Charitable Trust. The VCE was partly provided by Medtronic. He disclosed advisory board fees and/or consulting and/or research support from Janssen, AbbVie, CellTrion, Takeda, Schering Plough, Pfizer, Ferring, Falk Pharma, GlaxoSmithKline, Novartis, Roche, Galmed, EviNature, Galmed, PredictaMed, NeoPharm. 

Dr. Abreu has served as a consultant and scientific advisory board member for AbbVie, Arena Pharmaceuticals, Bristol-Myers Squibb, Eli Lilly Pharmaceuticals, Gilead, Janssen Biotech, and Prometheus Biosciences, University of California, Berkeley; a speaker for Alimentiv; and has had projects funded by Pfizer, Prometheus Laboratories, and Takeda Pharmaceuticals.

A version of this article appeared on Medscape.com.

Select adult patients with immunoglobulin A-tissue transglutaminase antibody levels (IgA-tTG) greater than or equal to 10 times the upper limit of normal (ULN) and a moderate-to-high pretest probability of celiac disease could be diagnosed without undergoing invasive endoscopy and duodenal biopsy, according to a new study.

Current international guidelines recommend duodenal biopsies to confirm a celiac disease diagnosis in adult patients, but growing evidence suggests invasive procedures may not be needed, the authors wrote.

“Our study confirms the high accuracy of serology-based diagnosis of coeliac disease in select adult patients,” said Mohamed G. Shiha, MBBCh, MRCP, lead author and a clinical research fellow in gastroenterology at Sheffield Teaching Hospitals in the United Kingdom.

iStock/Getty Images

“This no-biopsy approach could lead to a shorter time to diagnosis, increased patient satisfaction, and reduced healthcare costs,” he said.

The study was published online in Gastroenterology.
 

Evaluating the No-Biopsy Approach

Dr. Shiha and colleagues conducted a systematic review and meta-analysis to evaluate to the accuracy of a no-biopsy approach for diagnosing celiac disease in adults. They looked for studies that reported the sensitivity and specificity of IgA-tTG ≥10xULN compared with duodenal biopsies (with a Marsh grade ≥2) in adults with suspected celiac disease.

The research team used a bivariate random-effects model to calculate the summary estimates of sensitivity, specificity, and positive and negative likelihood ratios. Then the positive and negative likelihood ratios were used to calculate the positive predictive value (PPV) of the no-biopsy approach across different pretest probabilities of celiac disease.

Among 18 studies with 12,103 participants from 15 countries, the pooled prevalence of biopsy-proven celiac disease was 62%. The proportion of patients with IgA-tTG ≥10xULN was 32%.

The summary sensitivity of IgA-tTG ≥10xULN was 51%, and the summary specificity was 100% for the diagnosis of celiac disease. The positive and negative likelihood ratios were 183.42 and .49, respectively. The area under the summary receiver operating characteristic curve was .83.

Overall, the PPV of IgA-tTG ≥10xULN to identify patients with celiac disease was 98%, which varied according to pretest probability of celiac disease in the studied population. Specifically, the PPV was 65%, 88%, 95%, and 99% if celiac disease prevalence was 1%, 4%, 10%, and 40%, respectively. The 40% prevalence represents the lower confidence interval of the pooled prevalence from the included studies, the authors noted.

“We provided PPV estimates of IgA-tTG ≥10xULN for common pretest probabilities of coeliac disease to aid clinicians and patients in reaching an informed decision on a no-biopsy diagnosis based on the best available evidence,” the authors wrote.
 

Considering Additional Factors

Due to the increased accuracy of serological tests, pediatric guidelines have adopted a no-biopsy approach, the authors wrote. Children with IgA-tTG ≥10xULN and positive serum endomysial antibodies (EMA) can be diagnosed with celiac disease without biopsy.

However, the no-biopsy approach remains controversial for diagnosing adult patients and requires additional study, the authors wrote. They noted a limitation that all included studies were conducted in secondary and tertiary care settings and excluded patients with known celiac disease or on a gluten-free diet, so the results may not be generalizable to primary care settings.

In addition, relying on serology testing alone could lead to potential false-positive diagnoses, unnecessary dietary restriction, and negative effects on patients’ quality of life, the authors wrote.

At the same time, duodenal biopsy may not always be accurate due to inadequate sampling and could result in false-negative histology. The no-biopsy approach could mitigate this potential risk, the authors noted.

“This study systematically collates the growing data supporting the accuracy of antibody testing to diagnose celiac disease,” said Benjamin Lebwohl, MD, AGAF, professor of medicine and epidemiology at Columbia University Medical Center and director of clinical research for the Celiac Disease Center at Columbia University, New York. Dr. Lebwohl wasn’t involved with this study.

Select adult patients with immunoglobulin A-tissue transglutaminase antibody levels (IgA-tTG) greater than or equal to 10 times the upper limit of normal (ULN) and a moderate-to-high pretest probability of celiac disease could be diagnosed without undergoing invasive endoscopy and duodenal biopsy, according to a new study.

Current international guidelines recommend duodenal biopsies to confirm a celiac disease diagnosis in adult patients, but growing evidence suggests invasive procedures may not be needed, the authors wrote.

“Our study confirms the high accuracy of serology-based diagnosis of coeliac disease in select adult patients,” said Mohamed G. Shiha, MBBCh, MRCP, lead author and a clinical research fellow in gastroenterology at Sheffield Teaching Hospitals in the United Kingdom.

iStock/Getty Images

“This no-biopsy approach could lead to a shorter time to diagnosis, increased patient satisfaction, and reduced healthcare costs,” he said.

The study was published online in Gastroenterology.
 

Evaluating the No-Biopsy Approach

Dr. Shiha and colleagues conducted a systematic review and meta-analysis to evaluate to the accuracy of a no-biopsy approach for diagnosing celiac disease in adults. They looked for studies that reported the sensitivity and specificity of IgA-tTG ≥10xULN compared with duodenal biopsies (with a Marsh grade ≥2) in adults with suspected celiac disease.

The research team used a bivariate random-effects model to calculate the summary estimates of sensitivity, specificity, and positive and negative likelihood ratios. Then the positive and negative likelihood ratios were used to calculate the positive predictive value (PPV) of the no-biopsy approach across different pretest probabilities of celiac disease.

Among 18 studies with 12,103 participants from 15 countries, the pooled prevalence of biopsy-proven celiac disease was 62%. The proportion of patients with IgA-tTG ≥10xULN was 32%.

The summary sensitivity of IgA-tTG ≥10xULN was 51%, and the summary specificity was 100% for the diagnosis of celiac disease. The positive and negative likelihood ratios were 183.42 and .49, respectively. The area under the summary receiver operating characteristic curve was .83.

Overall, the PPV of IgA-tTG ≥10xULN to identify patients with celiac disease was 98%, which varied according to pretest probability of celiac disease in the studied population. Specifically, the PPV was 65%, 88%, 95%, and 99% if celiac disease prevalence was 1%, 4%, 10%, and 40%, respectively. The 40% prevalence represents the lower confidence interval of the pooled prevalence from the included studies, the authors noted.

“We provided PPV estimates of IgA-tTG ≥10xULN for common pretest probabilities of coeliac disease to aid clinicians and patients in reaching an informed decision on a no-biopsy diagnosis based on the best available evidence,” the authors wrote.
 

Considering Additional Factors

Due to the increased accuracy of serological tests, pediatric guidelines have adopted a no-biopsy approach, the authors wrote. Children with IgA-tTG ≥10xULN and positive serum endomysial antibodies (EMA) can be diagnosed with celiac disease without biopsy.

However, the no-biopsy approach remains controversial for diagnosing adult patients and requires additional study, the authors wrote. They noted a limitation that all included studies were conducted in secondary and tertiary care settings and excluded patients with known celiac disease or on a gluten-free diet, so the results may not be generalizable to primary care settings.

In addition, relying on serology testing alone could lead to potential false-positive diagnoses, unnecessary dietary restriction, and negative effects on patients’ quality of life, the authors wrote.

At the same time, duodenal biopsy may not always be accurate due to inadequate sampling and could result in false-negative histology. The no-biopsy approach could mitigate this potential risk, the authors noted.

“This study systematically collates the growing data supporting the accuracy of antibody testing to diagnose celiac disease,” said Benjamin Lebwohl, MD, AGAF, professor of medicine and epidemiology at Columbia University Medical Center and director of clinical research for the Celiac Disease Center at Columbia University, New York. Dr. Lebwohl wasn’t involved with this study.

Select adult patients with immunoglobulin A-tissue transglutaminase antibody levels (IgA-tTG) greater than or equal to 10 times the upper limit of normal (ULN) and a moderate-to-high pretest probability of celiac disease could be diagnosed without undergoing invasive endoscopy and duodenal biopsy, according to a new study.

Current international guidelines recommend duodenal biopsies to confirm a celiac disease diagnosis in adult patients, but growing evidence suggests invasive procedures may not be needed, the authors wrote.

“Our study confirms the high accuracy of serology-based diagnosis of coeliac disease in select adult patients,” said Mohamed G. Shiha, MBBCh, MRCP, lead author and a clinical research fellow in gastroenterology at Sheffield Teaching Hospitals in the United Kingdom.

iStock/Getty Images

“This no-biopsy approach could lead to a shorter time to diagnosis, increased patient satisfaction, and reduced healthcare costs,” he said.

The study was published online in Gastroenterology.
 

Evaluating the No-Biopsy Approach

Dr. Shiha and colleagues conducted a systematic review and meta-analysis to evaluate to the accuracy of a no-biopsy approach for diagnosing celiac disease in adults. They looked for studies that reported the sensitivity and specificity of IgA-tTG ≥10xULN compared with duodenal biopsies (with a Marsh grade ≥2) in adults with suspected celiac disease.

The research team used a bivariate random-effects model to calculate the summary estimates of sensitivity, specificity, and positive and negative likelihood ratios. Then the positive and negative likelihood ratios were used to calculate the positive predictive value (PPV) of the no-biopsy approach across different pretest probabilities of celiac disease.

Among 18 studies with 12,103 participants from 15 countries, the pooled prevalence of biopsy-proven celiac disease was 62%. The proportion of patients with IgA-tTG ≥10xULN was 32%.

The summary sensitivity of IgA-tTG ≥10xULN was 51%, and the summary specificity was 100% for the diagnosis of celiac disease. The positive and negative likelihood ratios were 183.42 and .49, respectively. The area under the summary receiver operating characteristic curve was .83.

Overall, the PPV of IgA-tTG ≥10xULN to identify patients with celiac disease was 98%, which varied according to pretest probability of celiac disease in the studied population. Specifically, the PPV was 65%, 88%, 95%, and 99% if celiac disease prevalence was 1%, 4%, 10%, and 40%, respectively. The 40% prevalence represents the lower confidence interval of the pooled prevalence from the included studies, the authors noted.

“We provided PPV estimates of IgA-tTG ≥10xULN for common pretest probabilities of coeliac disease to aid clinicians and patients in reaching an informed decision on a no-biopsy diagnosis based on the best available evidence,” the authors wrote.
 

Considering Additional Factors

Due to the increased accuracy of serological tests, pediatric guidelines have adopted a no-biopsy approach, the authors wrote. Children with IgA-tTG ≥10xULN and positive serum endomysial antibodies (EMA) can be diagnosed with celiac disease without biopsy.

However, the no-biopsy approach remains controversial for diagnosing adult patients and requires additional study, the authors wrote. They noted a limitation that all included studies were conducted in secondary and tertiary care settings and excluded patients with known celiac disease or on a gluten-free diet, so the results may not be generalizable to primary care settings.

In addition, relying on serology testing alone could lead to potential false-positive diagnoses, unnecessary dietary restriction, and negative effects on patients’ quality of life, the authors wrote.

At the same time, duodenal biopsy may not always be accurate due to inadequate sampling and could result in false-negative histology. The no-biopsy approach could mitigate this potential risk, the authors noted.

“This study systematically collates the growing data supporting the accuracy of antibody testing to diagnose celiac disease,” said Benjamin Lebwohl, MD, AGAF, professor of medicine and epidemiology at Columbia University Medical Center and director of clinical research for the Celiac Disease Center at Columbia University, New York. Dr. Lebwohl wasn’t involved with this study.