Clinical trial Recruiting at 29 sites Phase 3 Interventional Ages 18 and up

Phase 3 eRapa treatment for people with Familial Adenomatous Polyposis

Official title: A Phase 3, Multi-Site, Prospective, Randomized, Double-Blind, Placebo-Controlled Trial of eRapa to Improve Clinical Outcomes in Patients With Familial Adenomatous Polyposis

Run by Rapamycin Holdings Inc. · NCT06950385 · Data updated 2026-11-12

This will see if taking eRapa instead of placebo can slow disease progression and reduce polyps in adults with Familial Adenomatous Polyposis (FAP).

More Familial Adenomatous Polyposis trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment168 (estimated)
SponsorRapamycin Holdings Inc.
Industry-sponsored
Locations29 sites (Arcadia, California and 28 other locations)
StatusRecruiting
StartedJuly 18, 2025
Main results expectedJuly 2030
Study endsJanuary 2031
Registry record updatedJune 2, 2026
Trial IDNCT06950385 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) with genetically confirmed FAP who meet high-risk criteria such as >100 but ≤500 colonic polyps, or ≥10 polyps in a retained rectum/sigmoid or ileal pouch, or Spigelman stage 3–4 with at least one ≥10 mm polyp are the intended participants.

Probably not a fit

Patients with unresected or incompletely resected high-grade dysplasia or active cancer at screening, people without high-risk FAP features, or those unable to undergo regular endoscopy are unlikely to benefit from this trial.

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

What this trial studies

This is a randomized, double-blind, placebo-controlled Phase 3 trial enrolling 168 adults with genetically confirmed FAP who are considered high risk for progression. Participants are randomized 2:1 to oral 0.5 mg eRapa or matching placebo given once daily on an every-other-week dosing schedule, with treatment continued until disease progression or trial endpoint. Clinic visits occur every three months and endoscopic evaluations are performed at baseline and every six months to count and remove polyps and monitor progression. Patients are stratified by colon status (intact colon versus retained rectum/sigmoid or pouch) and by duodenal Spigelman stage.

Why it matters

Potential benefit: If successful, eRapa could slow FAP progression, reduce polyp burden, and delay or reduce the need for additional surgeries, improving patient outcomes and quality of life.

How similar studies have gone: Preclinical data and small early-phase reports suggest mTOR inhibitors like rapamycin can reduce polyp growth, but large randomized phase 3 evidence in FAP is limited, so this approach is relatively novel at scale.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participant must be ≥18 years of age inclusive.
2. Participant must have documented FAP, confirmed by adenomatous polyposis coli genotype mutation testing.
3. Participant must have at least 1 of the following high-risk features: \>100 polyps but ≤500 polyps in the colon, or ≥10 polyps in the retained rectum/sigmoid or ileal pouch (≥3 mm in size), or Spigelman stage 3 or 4 with at least 1 polyp ≥10 mm to be removed at baseline or on endoscopy performed within 18 months of screening.
4. Contraceptive use by participants or participant partners until at at least 12 weeks after stopping study treatment.
5. Agree not to donate gametes for the purpose of reproduction until at at least 12 weeks after stopping study treatment.
6. Willing to undergo endoscopic evaluation.

Exclusion Criteria:

1. Participant has unresected or incompletely resected high-grade dysplasia or cancer within the duodenum, colon, rectum, or ileal pouch at screening endoscopy.
2. Participant has any polyps ≥8 mm in the duodenum, colon, rectum, or ileal pouch remaining after screening endoscopy (polyps ≥8 mm are to be resected during screening endoscopy).
3. Participant has had surgery within 6 weeks of the trial.
4. Participant has active malignancy or history of malignancy diagnosed within 24 months of first dose of trial intervention.
5. Participant has a history of, or currently has, an acquired or primary (congenital) immunodeficiency.
6. Participant has active and clinically significant tuberculosis (positive Quantiferon Gold test), bacterial, fungal, or viral infection, including human immunodeficiency virus (HIV).
7. Participant has any medical or social condition that, in the opinion of the Investigator, might increase participant risk if enrolled, prevent participant compliance to trial procedures, or present an unacceptable confound to safety or clinical trial data.

Where it's running

  • City of Hope
    Arcadia, California, United States
    Recruiting
  • Yale Cancer Center
    New Haven, Connecticut, United States
    Recruiting
  • Georgetown University
    Washington D.C., District of Columbia, United States
    Recruiting
  • Digestive & Liver Center of Florida
    Orlando, Florida, United States
    Recruiting
  • Cleveland Clinic Florida
    Weston, Florida, United States
    Recruiting
  • University of Chicago
    Chicago, Illinois, United States
    Recruiting
Show 23 more locations
  • University of Kansas Medical Center
    Kansas City, Kansas, United States
    Recruiting
  • Johns Hopkins University
    Baltimore, Maryland, United States
    Recruiting
  • Dana Farber Cancer Institute
    Boston, Massachusetts, United States
    Recruiting
  • University of Michigan
    Ann Arbor, Michigan, United States
    Recruiting
  • Department of Surgery, Section of Colon Rectal and Surgery
    St Louis, Missouri, United States
    Recruiting
  • Cleveland Clinic
    Cleveland, Ohio, United States
    Recruiting
  • Ohio State University
    Columbus, Ohio, United States
    Recruiting
  • Geisinger Medical Center
    Danville, Pennsylvania, United States
    Recruiting
  • University of Pittsburgh Medical Center
    Pittsburgh, Pennsylvania, United States
    Recruiting
  • The University of Texas MD Anderson Cancer Center
    Houston, Texas, United States
    Recruiting
  • Benaroya Research Institute at Virginia Mason
    Seattle, Washington, United States
    Recruiting
  • University of Washington - Fred Hutchinson
    Seattle, Washington, United States
    Recruiting
  • Copenhagen University Hospital
    Copenhagen, Denmark
    Recruiting
  • Universitätsklinikum Bonn
    Bonn, Germany
    Recruiting
  • IRCCS Ospedale San Raffaele
    Milan, Italy
    Recruiting
  • Istituto Nazionale dei Tumori
    Milan, Italy
    Recruiting
  • Amsterdam UMC
    Amsterdam, Netherlands
    Recruiting
  • Radboud University Medical Center
    Nijmegen, Netherlands
    Recruiting
  • Hospital Oncologico - Puerto Rico Medical Center
    Rio Piedras, Puerto Rico
    Recruiting
  • Hospital Clínic de Barcelona
    Barcelona, Spain
    Recruiting
  • Hospital Comarcal de Inca
    Inca, Spain
    Recruiting
  • Hospital General Universitario Gregorio Marañón
    Madrid, Spain
    Recruiting
  • Hospital La Fe de Valencia
    Valencia, Spain
    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.