Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 75

627 for moderate to severe ulcerative colitis: see if it helps

Official title: A Multicenter, Randomized, Double-blind, Placebo-controlled Phase II Clinical Study to Evaluate the Safety, Efficacy, Pharmacokinetics and Immunogenicity of SSGJ-627 in Subjects With Moderate to Severe Active Ulcerative Colitis (UC)

Run by Sunshine Guojian Pharmaceutical (Shanghai) Co., Ltd. · NCT07507513 · Data updated 2026-11-12

This study tests whether 627 can help adults with moderate to severe ulcerative colitis who haven’t fully benefited from other therapies.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment288 (estimated)
SponsorSunshine Guojian Pharmaceutical (Shanghai) Co., Ltd.
Industry-sponsored
Locations1 site (Guangzhou, Guangdong)
StatusRecruiting
StartedMarch 28, 2026
Main results expectedFebruary 28, 2029
Study endsDecember 30, 2029
Registry record updatedJuly 28, 2026
Trial IDNCT07507513 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18-75 with a confirmed ulcerative colitis diagnosis and moderate to severe disease who have had an inadequate response, intolerance, or dependence on corticosteroids or other therapies.

Probably not a fit

Patients who respond poorly to 627 or placebo, or who discontinue due to adverse events, may not experience a clinical benefit.

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

What this trial studies

This Phase 2, randomized, interventional study evaluates the efficacy and safety of 627 compared with placebo in adults with moderate to severe ulcerative colitis. Eligible participants have a confirmed UC diagnosis for at least 3 months and an inadequate response or intolerance to previous therapies, or corticosteroid dependence. The trial will include adults 18-75 and will require contraception during the study and for six months after the last dose. Participants will receive either 627 or placebo to assess improvements in disease activity and monitor safety. The study is conducted at The First Affiliated Hospital, Sun Yat-sen University, with Sunshine Guojian Pharmaceutical (Shanghai) as lead sponsor.

Why it matters

Potential benefit: If successful, participants may experience reduced disease activity and improved symptoms associated with UC.

How similar studies have gone: Previous studies of similar agents in UC have shown signals of efficacy; this study tests a new compound in a comparable population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Able to understand and comply with the requirements of the study protocol, and sign the written informed consent form (ICF).
2. Male or female subjects aged 18-75 years old when signing the ICF.
3. Subjects must have been diagnosed with UC for at least 3 months prior to randomization.
4. Moderate to Severe Active Ulcerative Colitis (UC).
5. Inadequate or lost response, intolerance to one or more therapies, or corticosteroid dependence.
6. Female subjects of childbearing potential and male subjects (and their female partners) must use highly effective contraception from the screening period through at least 6 months after the last dose. The subjects must have no plans for pregnancy, sperm donation, or oocyte donation during the same period (from screening through at least 6 months post-last dose).

Exclusion Criteria:

1. History of severe opportunistic infection within 2 months prior to screening or randomization that remains not adequately controlled.
2. Receiving protocol-prohibited treatments prior to screening or randomization.
3. Presence of any laboratory test abnormalities during screening and/or determination by the investigator that enrollment in the study may pose uncontrollable safety risks to the subject.
4. Positive hepatitis B test result, positive hepatitis C virus antibody (HCV Ab), positive human immunodeficiency virus antibody (HIV Ab), or positive serum Treponema pallidum antibody (TP Ab) during screening, as specified in the protocol.
5. History of clinically significant cardiovascular and cerebrovascular diseases within 6 months prior to screening.
6. History of any malignancy within 5 years prior to screening or currently active malignancy.
7. Allergy to the investigational medicinal product, any of its components, or excipients.
8. History of alcohol or substance abuse within 6 months prior to screening.
9. Undergone major surgery within 6 months prior to screening or planned major surgery during the study period.
10. Blood donation or significant blood loss within 4 weeks prior to screening.
11. Participation in any drug clinical trial within 3 months prior to screening or within 5 half-lives of the investigational drug (whichever is longer).
12. Vaccination with live/attenuated live vaccines within 4 weeks prior to screening or planned vaccination during the study period.
13. Pregnant or lactating female subjects.
14. Other conditions deemed unsuitable for trial participation by the investigator.

Where it's running

  • The First Affiliated Hospital, Sun Yat-sen University
    Guangzhou, Guangdong, China
    Recruiting

Study contacts

Similar studies

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

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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.