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.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 42 Years |
| Sex | Women only |
| Enrollment | 5300 (estimated) |
| Sponsor | Assistance Publique - Hôpitaux de Paris Academic / other |
| Locations | 1 site (Paris) |
| Status | Recruiting |
| Started | May 2006 |
| Main results expected | June 2040 |
| Study ends | December 2040 |
| Registry record updated | November 20, 2025 |
| Trial ID | NCT04481321 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.
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Cannabinoid-based product for gynecologic pain in endometriosis, adenomyosis, or PID
This study tests a high-CBD, hemp-derived product against placebo in adults with gynecologic pain from endometriosis, adenomyosis, or PID over one week to see if it reduces pain and related symptoms.
-
Good pain consultation for endometriosis
This trial will test whether adding a 'good pain consultation' with early biopsychosocial pain education to usual care helps biological women with endometriosis manage pain and improve quality of life.
-
Effects of pelvic organ diseases on endometrial receptivity in infertile women
This study is trying to see how conditions like adenomyosis, fibroids, and endometriosis affect the ability of the uterus to support pregnancy in women who are having trouble getting pregnant.
-
Measuring L-PGDS levels in blood, urine, vaginal fluid and endometrial tissue
This project will test whether L-PGDS levels in blood, urine, vaginal fluid and uterine tissue differ between women with adenomyosis, other benign uterine conditions, and healthy controls.
-
Improving diagnosis of endometriosis and adenomyosis using advanced analysis techniques
This study is trying to find better ways to diagnose endometriosis and adenomyosis in women by using advanced techniques that look at genetics and imaging to help personalize treatments.
-
Comparing different techniques to treat endometriosis
This study is testing different methods to treat endometriosis, like laser and heat techniques, to see which one works best for relieving pain in women who are already having surgery for the condition.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.