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Effectiveness, safety, and clinical outcomes of treatment with the oral α4-integrin antagonist carotegrast methyl in patients with active ulcerative colitis: a multicenter observational study (CANAL study)
Inflammatory Bowel Diseases

Cure8 research brief

Effectiveness, safety, and clinical outcomes of treatment with the oral α4-integrin antagonist carotegrast methyl in patients with active ulcerative colitis: a multicenter observational study (CANAL study)

2 min read
Medications Rectal Bleeding Clinical study Adult patients Clinicians Researchers Patients On Biologics Ulcerative colitis

Why This Matters

This study provides real-world data suggesting the oral α4-integrin antagonist carotegrast methyl can improve patient-reported stool frequency and rectal bleeding in many people with ulcerative colitis who did not respond adequately to 5‑ASA.

It also reports a tolerability profile without serious adverse events in this cohort.

Who Should Pay Attention

Adults with ulcerative colitis with inadequate response to 5‑ASA; gastroenterologists and IBD clinicians; researchers studying oral anti-integrin agents or real-world UC treatment outcomes.

Study Snapshot

Story typeResearch paper
Evidence typeResearch paper
Source depthJournal abstract

What To Know

A multicenter retrospective observational study reported real-world outcomes for carotegrast methyl, an oral α4-integrin antagonist, in patients with ulcerative colitis who had an inadequate response to 5‑ASA.

Among 180 effectiveness-evaluable patients, patient-reported symptom response at week 8 (PRO-2) was 57.8% and remission 43.3%; rates were similar or modestly higher at the end of treatment and increased through week 16. Adverse drug reactions were reported in about 16% of patients (31 of 196), with no serious events recorded in this cohort.

The study used PRO-2 (stool frequency and rectal bleeding subscores) to assess effectiveness and followed patients for up to 52 weeks (median treatment duration ~84 days).

This is a retrospective, observational series from clinical practice rather than a randomized trial; findings describe symptom changes and reported safety in this treated population but do not establish comparative efficacy.

Keep In Mind

The study is retrospective and observational (real-world practice) and uses PRO-2 as the effectiveness measure. Results describe associations in treated patients but do not come from a randomized controlled trial; generalizability beyond the studied population may be limited.

Source Details

Review the original publication for the complete reporting, methods, and context.

Read Original Source
Research paper Evidence type derived from source or registry metadata.
PublicationInflammatory Bowel Diseases
PublisherOxford University Press (OUP)
AuthorsFumihito Hirai, Katsuyoshi Matsuoka, Kenji Watanabe +26 more
Study typeJournal Article
Indexed viaCrossref
Source typeResearch paper
PublishedSep 28, 2026, 12:00 AM
Content availableJournal abstract

Funding disclosed by the source: EA Pharma Co., Ltd; Kissei Pharmaceutical Co., Ltd

This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.

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