Recruiting

Oral Zasocitinib for Long-Term Safety in Active Ulcerative Colitis and Crohn's Disease

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What is being tested

Zasocitinib

Drug
Who is being recruted

Colitis+6

+ Colitis, Ulcerative

+ Colonic Diseases

From 18 to 76 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: May 2025
See protocol details

Summary

Principal SponsorTakeda
Study ContactTakeda Contact
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: May 28, 2025

Actual date on which the first participant was enrolled.

This study focuses on two serious types of inflammatory bowel diseases (IBD) known as Crohn's Disease and Ulcerative Colitis, which cause inflammation and pain in the intestines. The research aims to examine the long-term safety and effectiveness of a medicine called Zasocitinib (TAK-279) that helps reduce this inflammation. This trial is particularly important for adults with moderate to severe forms of these diseases, as it seeks to offer a potential long-term treatment option that can manage symptoms and improve quality of life. Participants in the study receive oral doses of TAK-279 over a period of up to two years. The study is designed as an extension of earlier trials, allowing those who benefited previously to continue their treatment. Throughout the trial, participants attend 11 clinic visits to monitor the drug's effectiveness and safety. This careful monitoring helps researchers understand the potential risks and benefits of prolonged use of the medication in managing IBD symptoms.

Official TitleA 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
NCT06764615
Principal SponsorTakeda
Study ContactTakeda Contact
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

183 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 76 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

ColitisColitis, UlcerativeColonic DiseasesCrohn DiseaseDigestive System DiseasesGastroenteritisGastrointestinal DiseasesIntestinal DiseasesInflammatory Bowel Diseases

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. Disease-Specific Inclusion Criteria: 2. Completion of Week 52 in the parent phase 2 CD and UC trials 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 in PRO2 at parent trial Week 52, 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 parent trial Week 52, 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. Other General Inclusion Criteria: 4. 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: 4. Participants taking oral corticosteroids for CD or UC during parent trial at or after Week 48.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
Participants with Crohn's Disease (CD) who completed Week 52 of the parent study, TAK-279-CD-2001 (NCT06233461) will be enrolled in this open-label extension trial to receive Zasocitinib, orally, once daily for up to 108 weeks.

Group II

Experimental
Participants with Ulcerative Colitis (UC) who completed Week 52 of the parent study, TAK-279-UC-2001 (NCT06254950) will be enrolled in this open-label extension trial to receive Zasocitinib, orally, once daily for up to 108 weeks.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 16 locations

Recruiting

Woodholme Gastroenterology Associates

Glen Burnie, United StatesOpen Woodholme Gastroenterology Associates in Google Maps
Recruiting

Tyler Research Institute, LLC

Tyler, United States
Recruiting

Chongqing General Hospital

Chongqing, China
Recruiting

The First Affiliated Hospital of Sun Yat-sen University

Guangdong, China
Recruiting
16 Study Centers