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ANTI-TNF TREATMENT WITHDRAWAL IN ULCERATIVE COLITIS, A MULTICENTER, OPEN-LABEL, RANDOMIZED CONTROLLED TRIAL

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Introduction

The BIOSTOP Trial is a prospective, multicenter, randomized, controlled, open-label study conducted in Norway to evaluate the two-year outcomes of tumor necrosis factor-alpha (anti-TNF) antibody withdrawal in patients with ulcerative colitis (UC) in sustained clinical and endoscopic remission. Prior non-randomized studies have suggested that approximately half of such patients maintain remission after anti-TNF discontinuation and that reintroduction of anti-TNF therapy is generally effective and safe in the event of relapse.

Aims & Methods

A total of 174 UC patients in confirmed clinical and endoscopic remission were enrolled across 19 gastroenterology centers between June 2017 and December 2020 and randomized 1:1 to either continue or discontinue anti-TNF therapy. Eligibility criteria included at least 12 months of first-line anti-TNF maintenance treatment, clinical remission, fecal calprotectin <200 µg/g, and endoscopic remission (Mayo endoscopic score 0 or 1). Two-year follow-up data were available for 172 patients (86 in each group). In 156 of the patients endoscopies were available for central reading (77 in the withdrawal group and 79 in the maintenance group). The primary endpoint was sustained endoscopic remission at two years.

Results

At two years, central reading of follow-up colonoscopies confirmed endoscopic remission in 64 of 77 patients (83%, 95% CI 71.8 – 93.1) in the anti-TNF withdrawal group, compared to 77 of 79 patients (96 %, 95 % CI 92.1 – 100.8) in the anti-TNF maintenance group. The non-inferiority primary endpoint of the study was thus not met. During the study period, 48% of patients in the withdrawal group and 88% in the maintenance group remained in sustained clinical and endoscopic remission without relapse. Among the 45 patients in the withdrawal group who experienced endoscopic confirmed relapse, 28 (62%) resumed anti-TNF therapy, with 26 achieving both clinical and endoscopic remission. Additionally, 10 of 13 patients with mild relapses achieved endoscopic remission with optimized non-biologic therapy. There were no difference in serious adverse events between the groups.

Conclusion

After two years, 83% of patients in the anti-TNF withdrawal group and 96% in the maintenance group were in clinical and endoscopic remission, including those who experienced flares and achieved new remission after reintroduction of anti-TNF or optimized non-biologic therapy. Nearly half of the patients maintained remission without anti-TNF, and the majority of relapses were effectively managed. These findings suggest that anti-TNF withdrawal is a safe option for selected UC patients in confirmed remission, provided they are monitored closely.
Trial Registration: ClinicalTrials.gov Identifier: NCT03011268; EudraCT Number: 2016-001409-18. Trial completion date: 31 January 2025.

Disclosure

No disclosures

ANTI-TNF TREATMENT WITHDRAWAL IN ULCERATIVE COLITIS, A MULTICENTER, OPEN-LABEL, RANDOMIZED CONTROLLED TRIAL

Ingrid Prytz Berset 1, Frode Lerang 2, Dag Arne Lihaug Hoff 3, Knut E.A. Lundin 4

1 Gastroenterology Aalesund, Alesund, Norway

2 Central Hosspital of Ostfold, Grålum, Norway

3 Aalesund Hospital, Møre & Romsdal Hospital trust, Aalesund, Norway

4 K. G. Jebsen Coeliac Disease Research Centre, University of Oslo and Oslo University Hospital, Oslo, Norway

Event

UEG Week Berlin 2025

Topics

Endoscopy IBD

Submission format

Abstract

Session

Tackling IBD in clinics

Citation

United European Gastroenterology Journal 2025; 13 (Supplement 8)

Published

2025

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The treatment

Judith Wellens 1

1 University Hospitals Leuven, Leuven, Belgium

Event

UEG Week Berlin 2025

Topics

IBD Primary Care

Session

When IBD and IBS experts collaborate for optimal diagnosis and treatment of IBD with IBS-like symptoms

Citation

United European Gastroenterology Journal 2025; 13 (Supplement 8)

Published

2025

UEG Presentation

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EFFICACY AND SAFETY OF MORF-057 THERAPY IN ADULTS WITH MODERATELY TO SEVERELY ACTIVE ULCERATIVE COLITIS: PHASE 2B EMERALD-2 STUDY RESULTS THROUGH WEEK 12

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Introduction

MORF-057 is an oral α₄β₇ integrin inhibitor that prevents immune cell entry into the gut to alleviate inflammation.

Aims & Methods

EMERALD-2 is a phase 2b, randomized, double-blind, placebo-controlled study evaluating MORF-057 efficacy and safety in adults with moderately to severely active ulcerative colitis (UC). Participants with Modified Mayo Score (MMS) 5–9, inadequate/loss of response or intolerance to conventional or advanced therapy (AT), and who were integrin inhibitor-naïve received 1 of 3 MORF-057 doses or placebo (1:1:1:1). The primary efficacy endpoint was clinical remission at Week 12; secondary and exploratory efficacy endpoints were rates of clinical response and endoscopic improvement, respectively. Pharmacokinetic and pharmacodynamic endpoints and safety were evaluated. The study is registered with ClinicalTrials.gov (NCT05611671).

Results

The study enrolled 280 participants (mean [SD] age, 40.2 [14.6] years; 55.4% male; mean [SD] time since UC diagnosis, 6.7 [7.2] years). At baseline, mean (SD) MMS was 6.7 (1.0); 39.3% of participants were on a stable corticosteroid dose, 20.4% were on an immunomodulator, and 31.1% were AT-experienced.
Clinical remission rate with MORF-057 at Week 12 was dose dependent, ranging from 17.1% (100 mg QD) to 31.9% (200 mg BID) vs. 24.3% with placebo (Table 1), with the same trend in the AT-experienced subgroup (N=87; 100 mg QD, 4.3%; 100 mg BID, 13.6%; 200 mg BID, 21.1%; placebo, 13.0%). Compared with placebo, 200 mg BID MORF-057 had numerically higher clinical response and endoscopic and histo-endoscopic mucosal improvement (HEMI) rates, with the latter 2 endpoints showing an increasing trend with higher doses.

Table 1. Efficacy endpoints in EMERALD-2 at Week 12

Rate (proportion of patients, %)	MORF-057			Placebo (n=70)
Rate (proportion of patients, %)	100 mg QD (n=70)	100 mg BID (n=71)	200 mg BID (n=69)	Placebo (n=70)
Clinical Remission^a	17.1	23.9	31.9	24.3
Clinical Response^b	57.1	53.5	62.3	54.3
Endoscopic Improvement^c	31.4	32.4	43.5	31.4
Histo-Endoscopic Mucosal Improvement^d	27.1	31.0	42.0	25.7

^aBased on MMS (stool frequency=0/1, RB=0, MES=0/1 [excluding friability]). Non-significant vs. placebo.
^b≥2-point reduction in MMS and ≥30% change from baseline, and ≥1-point reduction in RB score from baseline or RB=0/1.
^cMES≤1.
^dMES=0/1 (excluding friability) and neutrophil infiltration in <5% of crypts; no crypt destruction; and no erosions, ulcerations, or granulation tissue (Geboes scoring).
MES, Mayo Endoscopic Subscore; MMS, Modified Mayo Score; RB, rectal bleeding.

There was a dose-dependent increasing trend in α4β7 receptor occupancy. Treatment-emergent adverse events (TEAEs) in the MORF-057 groups were mostly of mild (42/76, 55.3%) or moderate (25/76, 32.9%) severity; TEAE frequency was similar to the placebo group (36.0% [pooled rate for 3 dose regimens] vs. 34.8%). Among all participants, there were 5 serious AEs not considered treatment-related (UC exacerbation [n=2], AST increase, pneumothorax, vertebral disc herniation). There were no cases of progressive multifocal leukoencephalopathy or meaningfully increased absolute lymphocyte count and no deaths.

Conclusion

Dose-dependent responses to MORF-057 were observed for clinical remission and hard-to-achieve endpoints such as HEMI at Week 12. The clinical remission rate with MORF-057 was numerically higher but did not achieve statistical significance vs. placebo, which showed higher-than-expected responses. MORF-057 had a favorable safety profile with no meaningful safety findings. The study is ongoing to evaluate maintenance safety and efficacy, with further clinical development of MORF-057 planned.

Disclosure

BES: Honoraria for consulting--AbbVie, Adiso Therapeutics, Agomab, Alimentiv, Amgen, AnaptysBio, Arena Pharmaceuticals, Artugen Therapeutics, Astra Zeneca, Biolojic Design, Biora Therapeutics, Boehringer Ingelheim, Boston Pharmaceuticals, Calibr, Celgene, Celltrion, ClostraBio, Equillium, Enthera, Enveda Biosciences, Evommune, Ferring, Fresenius Kabi, Fzata, Galapagos, Genentech (Roche), Gilead Sciences, GlaxoSmithKline, Gossamer Bio, Imhotex, Index Pharmaceuticals, Innovation Pharmaceuticals, Inotrem, Kaleido, Kallyope, Merck & Co., Microbiotica, Mitsubishi Tanabe, Mobius Care, Morphic Therapeutics, MRM Health, Nexus Therapeutics, Nimbus Discovery, Odyssey Therapeutics, OSE Immunotherapeutics, Palisade Bio, Progenity, Prometheus Biosciences, Prometheus Laboratories, Protagonist Therapeutics, Q32 Bio, Rasayana Therapeutics, Recludix Therapeutics, Reistone Biopharma, Sanofi, Sorriso Therapeutics, Spyre Therapeutics, Surrozen, Target RWE, Teva, TLL Pharmaceutical, Tr1X, Union Therapeutics, Ventyx Biosciences. Consulting and speaking fees--Abivax. Consulting and speaking fees and other support--Eli Lilly and Company. Research grants, consulting and speaking fees, and other support--Bristol Myers Squibb, Eli Lilly and Company, Janssen, Pfizer, Takeda. Research grants and consulting fees--Janssen. Stock/stock options--Ventyx Biopharma.
BGF: Senior Scientific Director at Alimentiv Inc. Consulting--AbbVie, Abivax, Adiso, AgomAB Therapeutics, Akros, Alira Health, Ally Bridge Group, AnaptysBio, Apini Therapeutics, Argenx, Attovia Tx, Avoro Capital Advisors, Belmore Law, BioFactura, BioJamp, Biora Therapeutics, Blackbird Laboratories, Boehringer-Ingelheim, Boxer Capital, Celsius Therapeutics, Celgene/Bristol Myers Squibb, Celltrion, Clarivate, Connect BioPharma, Disc Medicine, Duality, EcoR1, Eli Lilly and Company, Ensho Therapeutics, Equillium, Evida, Enveda, Faes Farma, First Wave, Forbion, Galapagos, Galen Atlantica, Genentech/Roche, General Atlantic, Genesis Therapeutics, Gilead, Gossamer Pharma, GSK, Imhotex, ImmiDomics, Immunic Therapeutics, Intercept, Janssen, Japan Tobacco Inc., Klick Health, LifeMine Therapeutics, Mage Biologics, Merck, Mestag, Mirador Therapeutics, Mobius Care, Monte Rosa Tx, Morphic Therapeutics, Nexys Therapeutics, Nighthawk Therapeutics, Nimbus Therapeutics, Novartis, OncoC4, OrbiMed, Orphagen, Palisade Bio, Pendopharm, Pfizer, Protagonist,32 Bio, REDX, Roche, Roivant/Televant, Sanofi, Sobi, Sorriso, Spyre Therapeutics, SRT Therapeutics, Sun Pharma, Surrozen Inc., Synedgen, Takeda, Teva, Triastek, Trex Bio, TR1X Inc. TVM Lifesciences, Ventyx Biosciences, Versant Ventures, Vida Ventures, Zagbio. Speaker's Bureau--AbbVie, Janssen, Takeda. Scientific Advisory Board (DSMB)--AbbVie, AnaptysBio, Boehringer-Ingelheim, Celgene/Bristol Myers Squibb, Eli Lilly and Company, Genentech/Roche, Janssen, Merck, MiroBio, Origo BioPharma, Pfizer, REDX Pharma, Sanofi, Takeda, Teva, Ecor1Capital, Morphic, GSK. Stock shareholder--Connect BioPharma, EnGene. Provided expert testimony--Belmore Law.
SS: Received fees--AbbVie, Amgen, Arena, Biogen, Bristol Meyers Squibb, Celgene, Celltrion, Falk, Ferring, Fresenius Kabi, Galapagos, Gilead, IMAB, Janssen, Eli Lilly and Company, MSD, Mylan, Novartis, Pfizer, Protagonist, Provention Bio, Roche, Sandoz/Hexal, Shire, Takeda, Ventyx.
LP-B: Consulting--AbbVie, Abivax, Adacyte, Alimentiv, Amgen, Applied Molecular Transport, Arena, Banook, Biogen, Bristol Myers Squibb, Celltrion, Connect Biopharm, Cytoki Pharma, Enthera, Ferring, Fresenius Kabi, Galapagos, Genentech, Gilead, Gossamer Bio, GSK, IAC Image Analysis, Index Pharmaceuticals, Inotrem, Janssen, Lilly, Medac, Mopac, Morphic, MSD, Nordic Pharma, Novartis, Oncodesign Precision Medicine, ONO Pharma, OSE Immunotherapeuthics, Pandion Therapeuthics, Par' Immune, Pfizer, Prometheus, Protagonist, Roche, Samsung, Sandoz, Sanofi, Satisfay, Takeda, Telavant, Theravance, Thermo Fischer, Tigenix, Tillots, Viatris, Vectivbio, Ventyx, Ysopia. Grants--Celltrion, Fresenius Kabi, Medac, MSD, Takeda. Lectures--AbbVie, Alfasigma, Amgen, Arena, Biogen, Celltrion, Ferring, Galapagos, Genentech, Gilead, Janssen, Kern Pharma, Eli Lilly and Company, Medac, MSD, Nordic Pharma, Pfizer, Sandoz, Takeda, Tillots, Viatris. Travel support--AbbVie, Alfasigma, Amgen, Celltrion, Connect Biopharm, Ferring, Galapagos, Genentech, Gilead, Gossamer Bio, Janssen, Eli Lilly and Company, Medac, Morphic, MSD, Pfizer, Sandoz, Takeda, Thermo Fischer, Tillots.
SD: Consultancy fees--AbbVie, Alimentiv, Allergan, Amgen, Applied Molecular Transport, AstraZeneca, Athos Therapeutics, Biogen, Boehringer Ingelheim, Bristol Myers Squibb, Celgene, Celltrion, Dr Falk Pharma, Eli Lilly and Company, Enthera, Ferring Pharmaceuticals Inc., Gilead, Hospira, Inotrem, Janssen, Johnson & Johnson, Morphic, MSD, Mundipharma, Mylan, Pfizer, Roche, Sandoz, Sublimity Therapeutics, Takeda, Teladoc Health, TiGenix, UCB Inc., Vial, Vifor. Lecture fees--AbbVie, Amgen, Ferring Pharmaceuticals Inc., Gilead, Janssen, Mylan, Pfizer, Takeda.
BA, MC, YW, SKL, MM, AW, XZ, NME: Employees and stockholders of Eli Lilly and Company.

EFFICACY AND SAFETY OF MORF-057 THERAPY IN ADULTS WITH MODERATELY TO SEVERELY ACTIVE ULCERATIVE COLITIS: PHASE 2B EMERALD-2 STUDY RESULTS THROUGH WEEK 12

Bruce E. Sands 1, Brian G. Feagan 2, Stefan Schreiber 3, Brihad Abhyankar 4, Michael Choi 5, Yujun Wu 5, Sun Ku Lee 5, Maloy Mangada 5, Andrew Wey 5, Xin Zhang 5, Nadezhda Mincheva Eberhart 5, Laurent Peyrin-Biroulet 6, Silvio Danese 7

1 Icahn School of Medicine at Mount Sinai, New York, United States

2 Alimentiv Inc., London, Canada

3 University Hospital Schleswig-Holstein, Kiel, Germany

4 Eli Lilly and Company Limited, Basingstoke, United Kingdom

5 Eli Lilly and Company, Indianapolis, United States

6 Centre Hospitalier Régional Universitaire de Nancy, Nancy, France

7 Vita-Salute San Raffaele University - IRCCS Ospedale San Raffaele, Milan, Italy

Event

UEG Week Berlin 2025

Topics

IBD Mechanisms & Personalised Medicine

Submission format

Abstract

Session

Advanced therapies in ulcerative colitis

Citation

United European Gastroenterology Journal 2025; 13 (Supplement 8)

Published

2025

UEG Presentation

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SPATIALLY DIFFERENTIATED MEASUREMENT OF INFLAMMATORY CELLS WITH DEEP LEARNING REVEALS THE HETEROGENEITY OF CHANGES IN ULCERATIVE COLITIS

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Introduction

Histological assessment in Inflammatory Bowel Disease (IBD) is often required with endoscopic diagnoses to establish disease activity. This is evident in patients where histological healing is a major therapeutic goal and when endoscopic healing can also exhibit microscopic disease. IBD can manifest in numerous landmark features which are structural and inflammatory related. Histological activity is determined through erosion/ulceration, architectural changes in tissue morphology, mucin depletion and presence of varied inflammatory cells the colonic crypts, Muscularis Mucosae (MM) and Lamina Propria (LP). Histological scoring systems vary in complexity and methodology and subject to discrepancies in inter-rater consensus. Our model aims to provide accurate measurements of key histological features in Ulcerative Colitis (UC) used in scoring systems as both a decision support tool for improving pathologist scoring alignment and sensitive quantitative metrics of inflammatory cells to evaluate disease activity.

Aims & Methods

We developed an ensemble of convolutional neural networks to identify cell types, tissue foreground, crypts, MM, and haemorrhage in H&E images of IBD biopsy data. Models were trained with expert-labelled annotations comprising 34,289 image-annotation pairs (80% training, 20% validation) from in-house and publicly available data. Model accuracy was assessed with 6,464 held-out image-annotation pairs from 26 Whole Slide Images (WSIs) from all sites of the large intestine commonly sampled during endoscopic investigation, while ground truth annotations were reviewed by GI-trained pathologists to certify accuracy. We used geospatial methods to derive boundaries of the LP from other predicted domains, associate cells to delineated regions, measure architectural changes and derive spatially differentiated metrics of inflammatory burden in 66 patients with confirmed UC.

Results

The AI model spatially differentiates and segments cell types and tissue compartments. This produces metrics for inflammatory cell counts in regions of interest such as crypts, LP, and MM. Goblet cell segmentation within crypts allows for measurement of mucin depletion. This can be visualized for pathologists where each inflammatory cell type across the WSI is represented as density metrics. Automated quantification of inflammatory cells across AI-identified tissue domains throughout the bowels of UC patients revealed large intra- and inter-patient variability.

Conclusion

Our AI model can measure histological healing by detecting architectural change, inflammatory cell number, goblet cell reduction and erosions and ulceration. This allows for metrics and visual overlays to assist with pathologist reading and quantifying changes in mucosal biopsies in a clinical trial setting which requires extremely sensitive tools only AI can provide.

Disclosure

DW/AM/RL/PA/PW and CL are employees at Perspectum Ltd. EF and RG are consultants for Perspectum Ltd. All other co-authors have no conflicts of interest to declare relevant to this work.

SPATIALLY DIFFERENTIATED MEASUREMENT OF INFLAMMATORY CELLS WITH DEEP LEARNING REVEALS THE HETEROGENEITY OF CHANGES IN ULCERATIVE COLITIS

Dylan Windell 1, Alastair Magness 1, Rongqi Li 1, Paul Aljabar 1, Eve Fryer 2, Robert D. Goldin 3, Phil Wakefield 1, Caitlin Langford 4, Jonathan Landy 5

1 Perspectum Ltd., Oxford, United Kingdom

2 John Radcliffe Hospital, Oxford, United Kingdom

3 Centre for Pathology, London, United Kingdom

4 Perspectum, Cambridge, United States

5 London North West University Healthcare NHS Trust, London, United Kingdom

Event

UEG Week Berlin 2025

Topics

IBD

Submission format

Abstract

Session

Artificial intelligence in IBD

Citation

United European Gastroenterology Journal 2025; 13 (Supplement 8)

Published

2025

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Managing IBD in a patient with new or recent cancer

Hannah Gordon 1

1 Royal London Hospital, London, United Kingdom

Event

UEG Postgraduate Teaching Programme Berlin 2025

Topics

Digestive Oncology IBD

Session

Cancer and IBD: Mitigating risk among uncertainty

Citation

United European Gastroenterology Journal 2025; 13 (Supplement 8)

Published

2025

UEG Presentation

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UP-FRONT VEDOLIZUMAB VERSUS CONVENTIONAL TREATMENT FOR CHECKPOINT INHIBITOR INDUCED COLITIS – VEICO: AN OPEN LABEL RANDOMIZED CLINICAL TRIAL

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Introduction

Immune checkpoint inhibitor (ICI) mediated enterocolitis (IMC) may lead to treatment discontinuation. Corticosteroids for IMC is associated with serious side effects and might affect cancer progression in addition to preclude continued ICI treatment. We hypothesized that vedolizumab, a gut selective α4β7 integrin inhibitor, is effective as a first-line treatment and investigated whether vedolizumab reduces corticosteroid exposure and facilitate ICI resumption.

Aims & Methods

We conducted a single center, open-label, explorative phase 2 trial including patients treated with ICI who developed IMC. Patients were randomized 1:1 ratio to receive vedolizumab (300 mg) or standard treatment with corticosteroids, with infliximab used as recue therapy for corticosteroid failure. The primary outcome was cumulative corticosteroid dose at week 30. Key secondary outcomes included cumulative corticosteroid dose at week 10, corticosteroid free remission at week 10 and ICI resumption rates.

Results

Twenty-two patients received vedolizumab, and 19 patients received standard treatment. At week 10, the mean cumulative corticosteroid use was significantly lower in the vedolizumab arm (1157 mg vs. 2207 mg). By week 30, the mean corticosteroid use remained lower but not statistically significant (1378 mg vs. 2390 mg, estimated difference 1012 mg, 95% CI -229 to 2253, p=0.107), Among patients with less severe IMC, who did not need corticosteroids during screening, vedolizumab-treated patients used in average 1729 mg less corticosteroid (95% CI 631 to 2827). Corticosteroid-free remission at weeks 2 and 10 was more common with vedolizumab. Seven patients (33.3%) in the vedolizumab group resumed with ICI compared to three (16.7%) in the standard arm. In patients with severe colitis, who required upfront corticosteroid treatment, a trend towards longer hospitalization in the vedolizumab arm was observed.

Conclusion

For patients with less severe colitis, not needing corticosteroids during screening, vedolizumab may be a viable corticosteroid-sparing option, enabling faster remission and ICI resumption.