Clinical trial Recruiting at 1 site Observational Ages 18 to 45 Women only

Identifying biomarkers for endometriosis using menstrual blood

Official title: RECHERCHE DE MARQUEURS DIAGNOSTIQUES ET PRONOSTIQUES DE L'ENDOMETRIOSE DANS LE SANG DES REGLES CHEZ LES FEMMES EN AGE DE PROCREER

Run by Institut National de la Santé Et de la Recherche Médicale, France · NCT06245512 · Data updated 2026-11-12

This study is trying to find markers in menstrual blood that can help diagnose and understand endometriosis in women aged 18-45, both those with the condition and those without.

Quick facts

Study typeObservational
Ages18 Years to 45 Years
SexWomen only
Enrollment250 (estimated)
SponsorInstitut National de la Santé Et de la Recherche Médicale, France
Government
Locations1 site (Paris)
StatusRecruiting
StartedJuly 31, 2024
Main results expectedMarch 30, 2027
Study endsMarch 30, 2027
Registry record updatedApril 16, 2026
Trial IDNCT06245512 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include women aged 18-45 who have their period and reside or work in the Ile de France area, with some having a diagnosis of endometriosis.

Probably not a fit

Patients with autoimmune diseases or chronic conditions other than endometriosis may 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 identify diagnostic and prognostic biomarkers for endometriosis by analyzing menstrual blood, a readily accessible biological fluid. Women aged 18-45, both with and without endometriosis, will provide menstrual blood samples using a menstrual cup, with some participants also undergoing surgery for their condition. The study will compare the menstrual blood of women affected by endometriosis to those without the condition, as well as before and after surgical treatment, to identify significant differences that could aid in diagnosis and prognosis.

Why it matters

Potential benefit: If successful, this study could lead to improved diagnostic methods for endometriosis, allowing for earlier and more accurate identification of the condition.

How similar studies have gone: While the approach of using menstrual blood for biomarker identification is relatively novel, similar studies have shown promise in identifying biomarkers for other conditions.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

For all participants:

Women 18-45 of age who

* Have their period
* Have given their written consent
* Have already used a menstrual cup as a method of hygienic protection
* Residing or working in Ile de France (Paris Metropolitan area, France)

For participants with endometriosis:

* diagnosis of endometriosis established by surgery or imaging (ultrasound and/or MRI)
* presence of one or more painful symptoms \> 3 on a visual scale (dysmenorrhea and/or dyspareunia and/or chronic pelvic pain) and/or infertility
* for the surgery subgroup: planned surgery in the next 3 months

For participants without endometriosis:

* painful symptoms \< or equal to 3 on a visual scale (for dysmenorrhea and dyspareunia and chronic pelvic pain),
* absence of intense period pain in adolescence (leading to taking pills to control this pain and/or peri-menstrual school absenteeism)

Exclusion Criteria:

For all participants:

* Autoimmune diseases
* Chronic diseases other than endometriosis (diabetes, hypertension)
* A person who is the subject of a judicial safeguard measure (by declaration)
* Infectious diseases (HIV, HBV, if known)
* History of menstrual toxic shock syndrome

For patients with endometriosis:

* endometriosis surgery within the last 3 months.

Where it's running

  • Hopital Cochin
    Paris, France
    Recruiting

Study contacts

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.