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Taking people in South KoreaPhase 2

Tests MK-8690 for moderately to severely active ulcerative colitis

Tests MK-8690 against placebo in adults with active ulcerative colitis.

Plain-language title generated from the registry record
Registry title: A Study to Evaluate Efficacy and Safety of MK-8690 in Participants With Moderately to Severely Active Ulcerative Colitis (MK-8690-002)

Key facts

Where
Ansan-si, Seoul, and Wŏnju, South KoreaSee the 3 sites
Phase
Phase 2

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 75 years old?

Source: NCT07463183, who can take part

Where in South Korea

  • Korea University Ansan Hospital (Site 1603)Ansan-si, South KoreaTaking people
  • Kangbuk Samsung Hospital (Site 1601)Seoul, South KoreaTaking people
  • Wonju Severance Christian Hospital (Site 1602)Wŏnju, South KoreaTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Merck Sharp & Dohme LLC
Trial code
NCT07463183EU 2025-523479-49-00
Record updated
23 October 2026
Original description
The purpose of this protocol is to evaluate the efficacy of MK-8690 in participants with moderately to severely active ulcerative colitis. The primary hypothesis is that MK-8690 is superior to placebo with respect to the proportion of participants achieving clinical remission per Modified Mayo Score at Week 12.Read full original descriptionShow less

A Phase 2a Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of MK-8690 in Adult Participants With Moderately to Severely Active Ulcerative Colitis

The purpose of this protocol is to evaluate the efficacy of MK-8690 in participants with moderately to severely active ulcerative colitis. The primary hypothesis is that MK-8690 is superior to placebo with respect to the proportion of participants achieving clinical remission per Modified Mayo Score at Week 12.

The main inclusion criteria include but are not limited to the following:; Has had ulcerative colitis (UC) (from onset of symptoms) for at least 3 months before Randomization; Has moderately to severely active UC; Has a weight ≥40 kg; Satisfies at least 1 of the criteria: Has had an inadequate response or loss of response to 1 or more protocol-specified treatments; protocol specified corticosteroid dependence; has been intolerant to 1 or more protocol-specified UC treatments; Is on treatment with any protocol-specified drugs during the study and meets drug stabilization requirements, as applicable; The main exclusion criteria include but are not limited to the following:; Has a diagnosis of Crohn's Disease (CD) or indeterminate colitis (inflammatory bowel disease (IBD)-undefined) or other types of colitis or enteritis that may confound efficacy assessment; Has a current diagnosis of fulminant colitis and/or toxic megacolon; Has UC limited to the rectum; Has a current or impending need for colostomy or ileostomy; Has had a total proctocolectomy or partial colectomy; Has UC exacerbation requiring hospitalization within 2 weeks before Screening; Has any active infection as specified in the protocol; Is known to be infected with hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV); Has evidence of active tuberculosis (TB) or meets TB exclusionary parameters; Has a history of cancer (except fully treated nonmelanoma skin cell cancers or cervical carcinoma in situ after complete surgical removal) and is disease free for <5 years before Randomization or has a history of colorectal cancer at any time; Has prior or current evidence of definite colonic dysplasia except for low-grade dysplasia that has been completely removed; Has had major surgery within 3 months before Screening or has a major surgery (ie, surgical procedure requiring general anesthesia) planned during the study; Has received protocol-specified prohibited medications.

ClinicalTrials.gov NCT07463183 · EU CTIS 2025-523479-49-00