Evaluating Etrasimod for Treating Ulcerative Colitis in Adolescents

An Open-Label, Single-Arm Study to Evaluate the Efficacy, Pharmacokinetics, and Safety of Etrasimod in Adolescent Participants With Moderately to Severely Active Ulcerative Colitis

PHASE2 · Pfizer · NCT05287126

This study is testing if a new medication called etrasimod can help teenagers with moderate to severe ulcerative colitis feel better over a year and possibly longer.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment36 (estimated)
Ages12 Years to 17 Years
SexAll
SponsorPfizer (industry)
Locations24 sites (Little Rock, Arkansas and 23 other locations)
Trial IDNCT05287126 on ClinicalTrials.gov

What this trial studies

This study aims to assess the safety, efficacy, and pharmacokinetics of etrasimod in adolescents aged 12 to under 18 years with moderately to severely active ulcerative colitis. Participants will undergo a 52-week treatment period, with the option to continue into a Long-Term Extension period lasting up to 4 years. The study will involve monitoring the effects of etrasimod on ulcerative colitis symptoms and overall health outcomes.

Who should consider this trial

Good fit: Ideal candidates are adolescents aged 12 to under 18 years diagnosed with moderately to severely active ulcerative colitis.

Not a fit: Patients with severe extensive colitis, Crohn's disease, or other specified colitis types may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve the management of ulcerative colitis in adolescents, leading to better health outcomes.

How similar studies have performed: Other studies have shown promise with similar treatments for ulcerative colitis, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion criteria:

* Have a diagnosis of ulcerative colitis (UC) that is moderately to severely active
* Participants are permitted to be receiving a therapeutic dose of select UC therapies

Exclusion criteria:

* Severe extensive colitis
* Diagnosis of Crohn's disease (CD) or indeterminate colitis or the presence or history of a fistula consistent with CD
* Diagnosis of microscopic colitis, ischemic colitis, or infectious colitis

Where this trial is running

Little Rock, Arkansas and 23 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.

View on ClinicalTrials.gov →

Conditions: Ulcerative Colitis, Pharmacokinetics, Adolescents, Active Ulcerative Colitis, APD334

Last reviewed 2026-05-15 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.