NCT06950385 · Rapamycin Holdings Inc.
Phase 3 Trial of eRapa in Patients With Familial Adenomatous Polyposis
(SERENTA)
What this study is about
The main goal of this clinical trial is to learn if the drug eRapa works to slow down the progression of disease in patients diagnosed with Familial Adenomatous Polyposis (FAP). Researchers will compare eRapa to Placebo.
View original scientific description
The main goal of this clinical trial is to learn if the drug eRapa works to slow down the progression of disease in patients diagnosed with Familial Adenomatous Polyposis (FAP). Researchers will compare eRapa to Placebo.
Interventions
DRUG
eRapa (encapsulated rapamycin)
0.5 mg capsules for oral use; white opaque capsule filled with off-white powder; Trial intervention will be provided in 28-count round high-density polyethylene bottles with a polypropylene child-resistant screw cap and foil induction seal.
DRUG
Placebo
Capsules in 28-count round high-density polyethylene bottles with a polypropylene child-resistant screw cap and foil induction seal.
Primary outcome measures
Progression-free survival (PFS) in high-risk patients with FAP treated with eRapa versus placebo.
Time frame: 3 years
* Death from any cause * Cancer/high-grade dysplasia * Major FAP-related surgery (e.g., colectomy, proctectomy, total proctocolectomy with ileal pouch anal anastomosis \[IPAA\], pouch resection, ileostomy, duodenectomy, or surgical ampullectomy) * Advancement of Spigelman stage (not related solely to increase in polyp number) * Meets criteria for surgery (consistent with United States \[US\] and European Union \[EU\] practice guidelines) (Yang, Gurudu et al. 2020, Zaffaroni, Mannucci et al.2024) * Retained rectum/sigmoid or pouch (≥10 polyps ≥3 mm in size at baseline) * Duodenum (Stage 3/4 and at least 1 polyp ≥10 mm removed in last 18 months)
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- 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
- 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
Where
- Arcadia, California
- New Haven, Connecticut
- Washington D.C., District of Columbia
- Orlando, Florida
- Weston, Florida
- Chicago, Illinois
- Kansas City, Kansas
- Baltimore, Maryland
- Boston, Massachusetts
- Ann Arbor, Michigan
- St Louis, Missouri
- Cleveland, Ohio
And 5 more locations — see the full list below.
Collaborators
Biodexa Pharmaceuticals
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 2, 2026 · Source of record for eligibility and locations