Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 80

SL-325 in Crohn's Disease: a phase 2 test for adults with moderate to severe disease

Official title: A Phase 2 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of SL-325 in Participants With Moderately to Severely Active Crohn's Disease

Run by Shattuck Labs, Inc. · NCT07753850 · Data updated 2026-11-12

This phase 2 study tests SL-325 against placebo in adults with moderately to severely active Crohn's disease to see if it helps improve symptoms and disease activity.

More Crohn's Disease trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment232 (estimated)
SponsorShattuck Labs, Inc.
Industry-sponsored
Locations20 sites (Little Rock, Arkansas and 19 other locations)
StatusRecruiting
StartedOctober 21, 2026
Main results expectedJuly 2028
Study endsJune 2030
Registry record updatedNovember 3, 2026
Trial IDNCT07753850 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with moderate to severely active Crohn's disease, confirmed by endoscopy and histopathology, who have not adequately responded to standard therapies.

Probably not a fit

Patients with Crohn's disease outside the specified activity range or with excluded disease locations or complications may 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 randomized, controlled phase 2 trial evaluates the efficacy of SL-325 in adults with moderate to severely active Crohn's disease. Participants undergo a screening period, a 12-week induction, a 38-week maintenance, a 52-week long-term extension, and a 10-week follow-up, with placebo as the comparator. Inclusion requires established Crohn's diagnosis, 특정 CDAI range, and prior inadequate response or intolerance to standard Crohn's therapies. Exclusion criteria remove those with non-Crohn GI conditions or Crohn's limited to non-colonic/ileal sites or with certain complications. Primary sponsor is Shattuck Labs, with sites in Little Rock, AR; Oxnard, CA; and Temple City, CA.

Why it matters

Potential benefit: If successful, participants could experience improved Crohn's symptoms and disease control with SL-325.

How similar studies have gone: Other Crohn's disease studies with targeted therapies have shown benefit in similar populations, though this exact agent is novel for Crohn's.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

* A diagnosis of Crohn's disease confirmed by endoscopy and histopathology ≥ 3 months prior to Screening
* Moderately to severely active CD as defined by CDAI of ≥ 220 and ≤ 450
* SES-CD score ≥ 6 if ileocolonic or colonic disease, or ≥ 4 if isolated ileal disease, as assessed by central review
* Demonstrated inadequate response, loss of response, or intolerance to one or more of the following Crohn's disease treatments: corticosteroids, immunomodulators, or an approved anti-tumor necrosis factor (TNF), anti-integrin, anti-interleukin (IL)-12/23, anti-interleukin (IL)-23p19, or Janus kinase inhibitor (JAK)

Key Exclusion Criteria:

* Diagnosis of UC, indeterminate colitis, or any other gastrointestinal condition that could undermine the diagnosis of CD
* CD isolated to the stomach, duodenum, jejunum, or perianal region, without colonic and/or ileal involvement
* Presence or suspicion of any of the following CD complications: intra-abdominal or perianal abscess; symptomatic stricture or colonic stenosis not passable in ileocolonoscopy, fistula, except for perianal fistula; active toxic megacolon or fulminant colitis; short bowel syndrome
* Surgical bowel resection within 3 months before Screening, ≥ 3 bowel resections, or previous ileo-colonic resection of \> 2 segments
* Diagnosis of primary sclerosing cholangitis
* Has a stoma, ileostomy, or colostomy.
* Has prior or current gastrointestinal dysplasia, other than a completely removed low-grade dysplastic lesion.
* Has active tuberculosis (TB) or inadequately treated latent tuberculosis (LTBI)
* Prior exposure to any anti-DR3 or anti-TL1A agent or agent with an anti-DR3 or anti-TL1A component

Where it's running

  • Clinical Trial Site
    Kissimmee, Florida, United States
    Recruiting
  • Clinical Trial Site
    Little Rock, Arkansas, United States
    Not yet recruiting
  • Clinical Trial Site
    Oxnard, California, United States
    Not yet recruiting
  • Clinical Trial Site
    Temple City, California, United States
    Not yet recruiting
  • Clinical Trial Site
    West Hills, California, United States
    Not yet recruiting
  • Clinical Trial Site
    Inverness, Florida, United States
    Not yet recruiting
Show 14 more locations
  • Clinical Trial Site
    Naples, Florida, United States
    Not yet recruiting
  • Clinical Trial Site
    Orlando, Florida, United States
    Not yet recruiting
  • Clinical Trial Site
    Tampa, Florida, United States
    Not yet recruiting
  • Clinical Trial Site
    Kansas City, Kansas, United States
    Not yet recruiting
  • Clinical Trial Site
    Houma, Louisiana, United States
    Not yet recruiting
  • Clinical Trial Site
    Marrero, Louisiana, United States
    Not yet recruiting
  • Clinical Trial Site
    Glen Burnie, Maryland, United States
    Not yet recruiting
  • Clinical Trial Site
    Boston, Massachusetts, United States
    Not yet recruiting
  • Clinical Trial Site
    Liberty, Missouri, United States
    Not yet recruiting
  • Clinical Trial Site
    St Louis, Missouri, United States
    Not yet recruiting
  • Clinical Trial Site
    Maspeth, New York, United States
    Not yet recruiting
  • Clinical Trial Site
    Cincinnati, Ohio, United States
    Not yet recruiting
  • Clinical Trial Site
    Columbus, Ohio, United States
    Not yet recruiting
  • Clinical Trial Site
    Nashville, Tennessee, United States
    Not yet 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.
Browse more
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.