Immune profile of people with desmoid-type fibromatosis

Immunological Profile of Patients With Desmoid-type Fibromatosis Under Active Surveillance.

Observational Fondazione IRCCS Istituto Nazionale dei Tumori, Milano · NCT07496242

This project will test whether immune and inflammatory signals in tumors and blood can explain why some people with sporadic desmoid-type fibromatosis get better on their own or after systemic treatment.

Quick facts

Study typeObservational
Enrollment200 (estimated)
Ages18 Years and up
SexAll
SponsorFondazione IRCCS Istituto Nazionale dei Tumori, Milano Academic / other
Locations8 sites (Candiolo and 7 other locations)
Trial IDNCT07496242 on ClinicalTrials.gov

What this trial studies

This observational multicenter project collects tumor samples and blood from patients with primary sporadic desmoid-type fibromatosis who are either under active surveillance or receiving systemic therapy. Investigators will analyze the tumor immune microenvironment, circulating immune and inflammatory molecules, immune cell subsets, and circulating tumor DNA (ctDNA). Results will be correlated with specific ß-catenin mutations to look for biomarkers linked to spontaneous or treatment-induced tumor regression. The aim is to define immune and molecular signatures that differentiate regressing from stable or progressing disease.

Who should consider this trial

Good fit: Adults with primary sporadic desmoid-type fibromatosis who have measurable disease and are either being actively monitored without immediate treatment or are receiving systemic therapy are the intended participants.

Not a fit: Patients without measurable disease, those with hereditary (FAP-associated) desmoids, or individuals unwilling/unable to provide tumor or blood samples are unlikely to benefit from this project.

Why it matters

Potential benefit: If successful, the findings could help doctors predict which patients are likely to regress or respond to therapy and guide more personalized monitoring and treatment decisions.

How similar studies have performed: Small prior studies have described immune involvement and links to ß-catenin in desmoid tumors, but combining detailed tumor immune microenvironment profiling with circulating markers and ctDNA is relatively novel and not yet proven to guide care.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with primary sporadic desmoid-type fibromatosis with measurable disease under active surveillance
* Patients with primary sporadic desmoid-type fibromatosis with measurable disease receiving systemic treatment.

Where this trial is running

Candiolo and 7 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Desmoid-Type Fibromatosis
Last reviewed 2026-06-13 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.