Clinical trial Recruiting at 16 sites Phase 2 Interventional Ages 18 to 75

Continued TAK-279 treatment in adults with ulcerative colitis or Crohn's disease

Official title: A Phase 2, Open-Label Extension Trial to Evaluate the Long-term Safety and Tolerability of Oral Zasocitinib (TAK-279) in Participants With Moderately to Severely Active Ulcerative Colitis and Moderately to Severely Active Crohn's Disease

Run by Takeda · NCT06764615 · Data updated 2026-11-12

Adults with moderate to severe ulcerative colitis or Crohn's disease who responded to earlier TAK-279 can continue TAK-279 for up to two years to see if it remains safe and lowers bowel inflammation and symptoms.

More Ulcerative Colitis trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment192 (estimated)
SponsorTakeda
Industry-sponsored
Locations16 sites (Glen Burnie, Maryland and 15 other locations)
StatusRecruiting
StartedMay 28, 2025
Main results expectedDecember 30, 2029
Study endsDecember 30, 2029
Registry record updatedMay 22, 2026
Trial IDNCT06764615 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with moderately to severely active ulcerative colitis or Crohn's disease who completed Week 52 of the parent TAK-279 trials and showed a clinical or symptomatic response are eligible.

Probably not a fit

Patients who did not respond to TAK-279 in the parent trials or who have medical reasons that prevent continued use of the drug are unlikely to benefit from this extension.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is an extension for adults who completed the parent TAK-279 Phase 2 trials and were clinical or symptomatic responders at Week 52, allowing them to continue TAK-279 treatment for up to 108 weeks. Participants will have about 11 clinic visits during the treatment period to monitor safety, symptoms, and bowel inflammation. The study focuses primarily on long-term safety and durability of response while collecting data on symptom control and inflammatory markers. Entry requires completion of the parent trial with valid electronic diary data and documented response at Week 52.

Why it matters

Potential benefit: If successful, long-term TAK-279 could maintain symptom control and reduce bowel inflammation with an understood safety profile over two years.

How similar studies have gone: Long-term extension programs of other JAK inhibitors for inflammatory bowel disease have shown durable symptom control and manageable safety profiles, supporting the general approach though TAK-279 itself is still being characterized.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. The participant is willing and able to understand and fully comply with trial procedures and requirements (including digital tools and applications), in the opinion of the investigator.

   The participant has provided informed consent (that is, in writing, documented via a signed and dated informed consent form \[ICF\]) and any required privacy authorization prior to the initiation of any trial procedures.
2. Completion of Week 52 in the parent trials (phase 2b CD and phase 2 UC) with valid electronic (e) Diary data for Week 52 (TAK-279-CD-2001 and TAK-279-UC-2001).
3. Clinical or symptomatic responder at parent trial Week 52 as defined below:

   1. TAK-279-CD-2001: Clinical response at Week 52 of the parent trial based on PRO2, assessed as \>=30% decrease in average daily very soft or liquid stools and/ or \>=30% decrease in average AP from parent trial baseline.
   2. TAK-279-UC-2001: Symptomatic response at Week 52 of the parent trial, assessed as a reduction in partial modified Mayo score (pmMS) of \>=1 points and \>=30% from parent trial baseline; and a decrease from parent trial baseline in the rectal bleeding sub-score of \>=1 point or an absolute rectal bleeding sub-score of \<=1 point.
4. TAK-279-CD-2003: Endoscopic response at Week 12 of the parent trial, assessed as a participant achieving decrease in SES-CD \>50% from baseline (or for participants with isolated ileal disease, SES-CD \<=4 or at least a 2-point reduction from baseline).

   Other General Inclusion Criteria:
5. Participants must meet the contraception recommendations.

Exclusion Criteria:

1. Participant considered by the investigator to be unsuitable for the OLE trial due to their trial compliance and medication adherence concerns.
2. Participants with malignancy or dysplasia per endoscopy any time during the parent trial or at the beginning of the OLE.

   Exclusion Criteria related to Laboratory Investigations:
3. Participants meeting the exclusion criteria related to laboratory investigations as defined in the protocol.

   Exclusion criteria related to other prohibited concomitant medication for TAK-279-CD-2001 and TAK-279-UC-2001 Cohorts:
4. Participants taking oral corticosteroids for CD or UC during parent trial at or after Week 48.

Where it's running

  • Woodholme Gastroenterology Associates
    Glen Burnie, Maryland, United States
    Recruiting
  • Tyler Research Institute, LLC
    Tyler, Texas, United States
    Recruiting
  • Chongqing General Hospital
    Chongqing, Chongqing Municipality, China
    Recruiting
  • The First Affiliated Hospital of Sun Yat-sen University
    Guangdong, Guangdong, China
    Recruiting
  • The Sixth Affiliated Hospital of Sun Yat-sen University
    Guangzhou, Guangdong, China
    Recruiting
  • Renji Hospital Shanghai Jiaotong University School of Medicine
    Shanghai, Shanghai Municipality, China
    Recruiting
Show 10 more locations
  • Hepato-Gastroenterologie HK s.r.o.
    Hradec Králové, Czechia
    Recruiting
  • Pannonia Maganorvosi Centrum
    Budapest, Hungary
    Recruiting
  • St. Antonius Ziekenhuis
    Tilburg, North Brabant, Netherlands
    Recruiting
  • Gastromed Kopon Zmudzinski i Wspolnicy Sp.j.Specjalistyczne Centrum Gastrologii i Endoskopii Specj
    Torun, Kuyavian-Pomeranian Voivodeship, Poland
    Recruiting
  • Centrum Medyczne MedykSp. z o.o. Sp. K.
    Lublin, Poland
    Recruiting
  • Twoja Przychodnia - Szczecinskie Centrum Medyczne
    Szczecin, Poland
    Recruiting
  • WIP Warsaw IBD Point Profesor Kierkus
    Warsaw, Poland
    Recruiting
  • Endomed
    Košice, Slovakia
    Recruiting
  • Inje University Haeundae Paik Hospital
    Haeundae, Busan Gwangyeogsi, South Korea
    Recruiting
  • Yonsei University Wonju Severance Christian Hospital
    Wŏnju, Gangwon-do, South Korea
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.