Afimkibart for children with moderately to severely active ulcerative colitis

A Phase III Randomized Double-Blind Multi-Center Treat-Through Study to Evaluate the Pharmacokinetics, Safety and Efficacy of Induction and Maintenance Therapy With Afimkibart (RO7790121) in Children Aged 2 - 17 Years With Moderately to Severely Active Ulcerative Colitis

Phase 3 Interventional Hoffmann-La Roche · NCT07158242

This Phase III study will try Afimkibart to see if it helps children with moderate to severe ulcerative colitis and is safe for them.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment100 (estimated)
Ages2 Years to 17 Years
SexAll
SponsorHoffmann-La Roche Industry-sponsored
Drugs / interventionsradiation
Locations9 sites (Atlanta, Georgia and 8 other locations)
Trial IDNCT07158242 on ClinicalTrials.gov

What this trial studies

This randomized, double-blind, multicenter Phase III trial enrolls pediatric participants with moderate to severe active ulcerative colitis who have had inadequate response or intolerance to systemic corticosteroids, immunomodulators, or biologic therapies. Participants receive Afimkibart during an induction period and responders enter a maintenance phase to compare longer-term efficacy and safety against placebo or comparator. The protocol includes pharmacokinetic sampling to establish pediatric dosing, regular safety monitoring, and efficacy endpoints such as clinical remission and symptom improvement. The study is conducted at major pediatric and academic centers in the United States and Taiwan.

Who should consider this trial

Good fit: Children with a confirmed diagnosis of moderate to severe ulcerative colitis who weigh at least 10 kg and who have had an inadequate response or intolerance to systemic corticosteroids, immunomodulators, or biologic therapies.

Not a fit: Patients with Crohn's disease or other non-UC colitis diagnoses, monogenic infant-onset IBD, an ostomy or ileoanal pouch, suspected primary sclerosing cholangitis, active tuberculosis, or recent major surgery are excluded and unlikely to benefit from this study.

Why it matters

Potential benefit: If successful, Afimkibart could provide a new treatment option that reduces symptoms and helps maintain remission in children whose ulcerative colitis is not controlled by current therapies.

How similar studies have performed: Earlier-phase trials of Afimkibart and related biologic agents in adults and preliminary pediatric data have shown promising safety and efficacy signals, but robust pediatric Phase III evidence is still needed.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Bodyweight \>= 10 kilogram (kg)
* Confirmed diagnosis of UC
* Demonstrated intolerance or inadequate response (IR) to one or more of the following categories of drugs: systemic corticosteroids, immunomodulators, and/or biologic therapies as outlined in the protocol

Exclusion Criteria:

* Monogenic disorder pertaining to infant onset inflammatory bowel disease (IBD)
* Current diagnosis of Crohn's disease (CD), abdominal/intrabdominal/perianal fistula and/or abscess, indeterminant colitis, IBD-unclassified, microscopic colitis, ischemic colitis, infectious colitis, radiation colitis, or active diverticular disease
* Presence of an ostomy or ileoanal pouch
* Current diagnosis or suspicion of primary sclerosing cholangitis
* Any major surgery within 6 weeks prior to screening or a major planned surgery during the study
* Active tuberculosis (TB) infection suggested by positive TB testing, clinical symptoms, and/or chest imaging (X-ray or CT)

Where this trial is running

Atlanta, Georgia and 8 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Moderately to Severely Active Ulcerative Colitis
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.