Clinical trial Recruiting at 32 sites Phase 2 Interventional Ages 18 to 75

OD-07656 followed by vedolizumab for moderate to severe ulcerative colitis

Official title: A Phase 2a, Two-Part, Open-Label and Randomized Study to Evaluate the Safety and Efficacy of OD-07656 and of Subsequent Vedolizumab Therapy in Patients With Moderately to Severely Active Ulcerative Colitis

Run by Odyssey Therapeutics, Inc. · NCT06850727 · Data updated 2026-11-12

This test tries OD-07656, followed by vedolizumab, to see if it improves symptoms in people with moderate to severe ulcerative colitis who have not responded well to other treatments.

More Ulcerative Colitis (UC) trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment57 (estimated)
SponsorOdyssey Therapeutics, Inc.
Industry-sponsored
Drugs / interventionsvedolizumab
Locations32 sites (Birtinya and 31 other locations)
StatusRecruiting
StartedJune 2, 2025
Main results expectedApril 2026
Study endsNovember 2026
Registry record updatedFebruary 11, 2026
Trial IDNCT06850727 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults with confirmed moderate to severe ulcerative colitis by the 3-component Modified Mayo score who have had inadequate response, loss of response, or intolerance to at least one prior UC therapy.

Probably not a fit

People with Crohn's disease or indeterminate colitis, those who have had extensive colonic resection or an ostomy, or those with uncontrolled primary sclerosing cholangitis are excluded and likely would not 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 interventional trial gives participants with moderately to severely active ulcerative colitis OD-07656 and monitors safety and clinical outcomes using measures such as the 3-component Modified Mayo clinic score. Eligible participants are those with inadequate response, loss of response, or intolerance to prior therapies including aminosalicylates, corticosteroids, immunosuppressants, biologics, JAK inhibitors, or S1P modulators. A key objective is to determine whether OD-07656 can enhance the therapeutic benefit of vedolizumab when vedolizumab is administered after OD-07656. Study visits will take place at Australian sites including Sunshine Coast University (Birtinya), Eastern Health (Box Hill), and Coastal Digestive Health (Maroochydore).

Why it matters

Potential benefit: If successful, this approach could help more people achieve symptom control or remission, especially those who have not benefited from existing treatments.

How similar studies have gone: Vedolizumab is an established treatment for UC, but OD-07656 is experimental and using it to boost subsequent vedolizumab response is a novel approach with limited prior data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

The main inclusion criteria include but are not limited to the following:

* Has a confirmed diagnosis of ulcerative colitis (UC)
* Has moderate to severely active UC as defined by the 3-component Modified Mayo clinic score
* Has an inadequate response, loss of response, or intolerance/medical contraindication to at least one of the following therapies: oral aminosalicylates, corticosteroids, immunosuppressants, anti-tumor necrosis factor biologic, anti-interleukin 12/23 biologic, Janus kinase inhibitors, or sphingosine-1-phosphate (S1P) modulators

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

* Has diagnosis of Crohn's disease or indeterminate colitis
* Has had extensive colonic resection
* Has colostomy or ileostomy
* Has uncontrolled primary sclerosing cholangitis

Where it's running

  • Sunshine Coast University
    Birtinya, Australia
    Recruiting
  • Eastern Health
    Box Hill, Australia
    Recruiting
  • Coastal Digestive Health
    Maroochydore, Australia
    Recruiting
  • Alfred Health
    Melbourne, Australia
    Recruiting
  • Fiona Stanley Hospital
    Murdoch, Australia
    Recruiting
  • Royal Melbourne Hospital
    Parkville, Australia
    Recruiting
Show 26 more locations
  • Medical University of Graz
    Graz, Austria
    Recruiting
  • Chum
    Montreal, Canada
    Recruiting
  • Montreal General Hospital/McGill University
    Montreal, Canada
    Recruiting
  • CHUM - Pavillon R
    Polička, Czechia
    Recruiting
  • Jordan University Hospital
    Amman, Jordan
    Recruiting
  • The Specialty Hospital (TSH) / Advanced Clinical Center
    Amman, Jordan
    Recruiting
  • Irbid Specialty Hospital
    Irbid, Jordan
    Recruiting
  • The Hospital of Lithuanian University of Health Sciences
    Kaunas, Lithuania
    Recruiting
  • IMSP Spitalul Clinic Republican Timofei Moneaga
    Chisinau, Moldova
    Recruiting
  • PCRN Auckland
    Auckland, New Zealand
    Recruiting
  • PCRN Christchurch
    Christchurch, New Zealand
    Recruiting
  • PCRN Waikato
    Hamilton, New Zealand
    Recruiting
  • PCRN Tasman
    Nelson, New Zealand
    Recruiting
  • PCRN Wellington
    Upper Hutt, New Zealand
    Recruiting
  • Centrum Medyczne
    Bydgoszcz, Poland
    Recruiting
  • Centrum Medyczne LukaMed
    Chojnice, Poland
    Recruiting
  • Vita Longa Sp. z.o.o.
    Katowice, Poland
    Recruiting
  • Centrum Medyczne Medyk
    Rzeszów, Poland
    Recruiting
  • Endoskopia Sp. z.o.o
    Sopot, Poland
    Recruiting
  • Nowe zdrowie-CK, Kiełtucki
    Staszów, Poland
    Recruiting
  • Medical Network Company
    Warsaw, Poland
    Recruiting
  • Penta Hospitals Przychodnie
    Wroclaw, Poland
    Recruiting
  • Regional Clinical Hospital
    Ivano-Frankivsk, Ukraine
    Recruiting
  • Medical centre of ARENSIA Exploratory Medicine LCC
    Kyiv, Ukraine
    Recruiting
  • Danylo Halytsky Lviv National Medical University
    Lviv, Ukraine
    Recruiting
  • Lviv Regional Clinical Hospital
    Lviv, Ukraine
    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.