Clinical trial Recruiting at 1 site Observational Ages 18 to 42 Women only

Understanding the progression of endometriosis and adenomyosis

Official title: ENDOCHAP Monocentric Cohort: Clinical and Molecular Study of Endometriosis and Adenomyosis

Run by Assistance Publique - Hôpitaux de Paris · NCT04481321 · Data updated 2026-11-12

This study is trying to see if endometriosis and adenomyosis get worse over time by looking at symptoms and other factors to help improve diagnosis and treatment for those affected.

More Endometriosis trials

Quick facts

Study typeObservational
Ages18 Years to 42 Years
SexWomen only
Enrollment5300 (estimated)
SponsorAssistance Publique - Hôpitaux de Paris
Academic / other
Locations1 site (Paris)
StatusRecruiting
StartedMay 2006
Main results expectedJune 2040
Study endsDecember 2040
Registry record updatedNovember 20, 2025
Trial IDNCT04481321 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 18 to 42 who are experiencing pelvic pain, infertility, or have a pelvic mass, and have a radiological diagnosis.

Probably not a fit

Patients who are HIV-positive, pregnant, have a cancer diagnosis, or refuse to sign consent will not benefit from this study.

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

What this trial studies

This observational study aims to investigate whether endometriosis and adenomyosis are progressive diseases by examining symptoms such as pain, abnormal uterine bleeding, and infertility, as well as the size of anatomical lesions and recurrence rates. The study will also explore molecular aspects, including immune interactions between ectopic lesions and the normal endometrium, autoimmune responses, and the role of microbiota in these conditions. By identifying specific clinical and molecular markers, the research seeks to reduce the time taken for accurate diagnosis and management of these conditions.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic methods and management strategies for women suffering from endometriosis and adenomyosis.

How similar studies have gone: Other studies have explored aspects of endometriosis and adenomyosis, but this specific approach focusing on disease progression and molecular markers is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Women of age between - 18 and 42 years old.
* In-service care for one of the pelvic pain and/or infertility, or for a pelvic mass.
* Having a radiological diagnosis made by a referral practitioner and/or operated in the department

Exclusion Criteria:

* HIV-positive women, HBV and HCV
* During pregnancy
* Having a cancer diagnosis
* Refusing to sign a consent.

Where it's running

  • Port Royal, hospital cochin
    Paris, France
    Recruiting

Study contacts

  • Principal investigator: Louis Marcellin, MD, PhD — Assistance Publique - Hôpitaux de Paris
  • Study coordinator: Charles Chapron, MD
  • Email: charles.chapron@aphp.fr
  • Phone: 1 58 41 19 33

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.