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NCT07461246Active, not recruiting

Familial Adenomatous Poliposys Italian Network (Rete Italiana Poliposi Adenomatosa Familiare)

Rete Italiana Poliposi Adenomatosa Familiare (RIPAF)

Source: ClinicalTrials.gov · Last updated 10 Mar 2026

Brief summary (registry, in English)

RIPAF (Rete Italiana Poliposi Adenomatosa Familiare) is a national, multicenter observational registry designed to establish a coordinated Italian network for the management of Familial Adenomatous Polyposis (FAP) and related adenomatous polyposis syndromes. The registry includes patients with APC-related FAP (classic and attenuated forms), MUTYH-associated polyposis (MAP), and adenomatous polyposis not associated with APC or MUTYH mutations (NAMP), including cases linked to other susceptibility genes or without identified pathogenic variants. The study combines retrospective and prospective data collection across 28 Italian centers. Its primary purpose is to generate standardized, large-scale clinical data to better characterize disease presentation and evolution, evaluate current surveillance and surgical strategies, and assess oncological outcomes and quality-of-care indicators in real-world practice. The registry will collect detailed information on genotype-phenotype correlations, colorectal and upper gastrointestinal cancer incidence, desmoid tumor development, timing and type of prophylactic surgery, postoperative outcomes, and long-term survival. Additional objectives include evaluating adherence to surveillance guidelines, timing of genetic diagnosis, and preventive surgical uptake among at-risk relatives. By harmonizing data collection and promoting collaboration among referral centers, RIPAF aims to reduce variability in clinical management across Italy, improve risk stratification and decision-making, and create a national platform to support future multicenter research initiatives and international collaborations in hereditary colorectal cancer syndromes.

Status (registry)
Active, not recruiting
Study type
Observational
Enrollment
1500 (estimated)
First submitted
26 Feb 2026
Start date
13 May 2024
Primary completion date
31 Dec 2027
Lead sponsor
Fondazione IRCCS Istituto Nazionale dei Tumori, Milano
NCT number
NCT07461246

What you commit to

  • Study type: Observational
  • Planned participants: 1500
  • From 13 May 2024 to the primary completion date, 31 Dec 2027
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Patients with polyposis syndromes of different etiology not meeting the above inclusion criteria, such as Peutz-Jeghers syndrome, Juvenile polyposis syndrome, Serrated polyposis syndrome, or Cowden syndrome.

Other

  • Patients whose polyp burden does not meet the specified thresholds or whose polyps are predominantly non-adenomatous (hyperplastic, serrated, hamartomatous).
  • Patients who refuse to provide informed consent.

Who the study is looking for

  • patients with documented colorectal polyposis (\>10 synchronous adenomas or ≥20 adenomas across multiple colonoscopies);
  • patients who have undergone genetic testing with the following results: a pathogenic variant (PV) in APC (FAP); biallelic pathogenic variants in MUTYH (MAP); other pathogenic variants identified in genes such as POLE, POLD1, NTHL1, MSH3, and GREM1;
  • patients in whom no pathogenic variants have been identified in known genes (NAMP);
  • histologically, the majority of polyps must be adenomas.

Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Fondazione IRCCS - Istituto Nazionale dei Tumori
Coordinator of this site? Confirm its status
MilanItalyUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.