Evaluating REC-4881 for Familial Adenomatous Polyposis (FAP)

This study is testing REC-4881 capsules in people with Familial Adenomatous Polyposis (FAP), a genetic condition that causes growths (polyps) in the colon and rectum. The study aims to understand how REC-4881 works in the body (pharmacokinetics), its safety, and how well it treats FAP. You may be able to join if you are 18 or older, have a diagnosis of FAP affecting your duodenum or remaining colon/rectum/pouch, and have had surgery to remove part or all of your colon. The study will measure how much REC-4881 is in your blood over about six weeks to understand its effects. The current status of this study is unclear.

Study design
This is a two-part study involving 67 participants. It is an interventional study, meaning participants will receive either REC-4881 or a placebo.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The primary measurements for REC-4881 in the body are taken from Day 1 through Day 43.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05552755

Evaluate REC-4881 in Participants With Familial Adenomatous Polyposis (FAP)

Recruiting
PHASE1Ages 18+InterventionalTreatment
Recursion Pharmaceuticals Inc.
~67 participants
Updated 2026-06-05 on ClinicalTrials.gov
What's tested:REC-4881Placebo

At a glance

Recruiting sites
7 of 17 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Part 1: Maximum (Peak) Plasma Drug Concentration (Cmax) of REC-4881
Measured over Day 1 through Day 43
+7 more outcomes measured
Familial Adenomatous Polyposis

NCT05552755

Where you'd take part

This study runs at 17 sites. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • Benaroya Research Institute at Virginia Mason

    Seattle, Washingtonstudy coordinator listed

    Recruiting

  • Genetic Cancer Prevention Clinic - UT Southwestern

    Dallas, Texasstudy coordinator listed

    Recruiting

  • Huntsman Cancer Institute and University of Utah

    Salt Lake City, Utahstudy coordinator listed

    Recruiting

  • MD Anderson Cancer Center

    Houston, Texasstudy coordinator listed

    Recruiting

  • University of Pennsylvania

    Philadelphia, Pennsylvaniastudy coordinator listed

    Recruiting

  • Vanderbilt Digestive Center

    Nashville, Tennesseestudy coordinator listed

    Recruiting

  • Washington University School of Medicine

    St Louis, Missouristudy coordinator listed

    Recruiting

  • Corewell Health (Spectrum Health Hospitals Colorectal Cancer Multis)

    Grand Rapids, Michiganno site contact published

    Active, not recruiting

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Opens a ready-to-send draft in your own email app — review before sending.

  • Part 1: Maximum (Peak) Plasma Drug Concentration (Cmax) of REC-4881Day 1 through Day 43
  • Part 1: Time to Reach Cmax (Tmax) of REC-4881Day 1 through Day 43
  • Part 1: Area Under the Plasma Concentration-time Curve (AUC) of REC-4881Day 1 through Day 43
  • Part 2: Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Day 1 through up to Week 37
  • Part 2: Number of Participants With Dose-limiting Toxicities (DLTs)First 28 days of treatment
  • Part 2: Number of Participants Who Discontinued TreatmentDay 1 through up to Week 37
  • Part 2: Number of Participants With Dose Modification Due to ToxicityDay 1 through up to Week 37
  • Part 2: Percent Change From Baseline in Polyp BurdenBaseline, up to Week 37