Investigating blood and tissue markers for diagnosing endometriosis

Blood and Tissue Markers for Improving Diagnosis and Prognosis of Endometriosis. a Prospective Multicenter Nationwide Study. (ENDOBIO)

Observational Region Stockholm · NCT05339451

This study is trying to find blood and tissue markers that can help doctors diagnose endometriosis earlier and more accurately in women who are having surgery for suspected cases.

Quick facts

Study typeObservational
Enrollment345 (estimated)
Ages18 Years to 45 Years
SexFemale
SponsorRegion Stockholm Government
Locations3 sites (Stockholm, Huddinge and 2 other locations)
Trial IDNCT05339451 on ClinicalTrials.gov

What this trial studies

This observational study aims to identify and validate biomarkers associated with endometriosis to improve diagnosis and prognosis. It will involve women of reproductive age who are undergoing laparoscopic surgery for suspected endometriosis or other benign gynecological conditions. The study will analyze blood and tissue samples to correlate these biomarkers with clinical manifestations, relapse rates, and fertility outcomes. The goal is to develop a laboratory test that can facilitate earlier and more accurate diagnosis of endometriosis.

Who should consider this trial

Good fit: Ideal candidates are women aged 18-45 who are undergoing surgery for suspected endometriosis or other benign gynecological issues.

Not a fit: Patients who are postmenopausal, have a BMI over 40, or have certain other medical conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to earlier diagnosis and better management of endometriosis, reducing the time patients suffer before receiving appropriate care.

How similar studies have performed: While there have been studies exploring biomarkers in endometriosis, this specific approach to validate them for diagnosis and prognosis is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
IInclusion Criteria:

* women of reproductive age (18-45) who are operated because of suspected endometriosis (dysmenorrhea, dyspareunia, infertility, etc.) (patient group)
* women of reproductive age (18-45) who are operated for other benign gynecological causes with laparoscopy (ovarian cysts, sterilization, fibroids, etc.) and are found without macroscopic endometriosis perioperatively and confirmed with blind biopsies (control group
* talk swedish or english in order to complete questionnaires and give informed consent for their participation in the study.

Exclusion Criteria:

* BMI\> 40
* postmenopausal women
* premature ovarian failure
* pelvic inflammatory disease (PID)
* current or previous malignancy
* pregnancy and 6 months postpartum
* corticosteroids in the last 3 months
* pituitary, kidney, liver, adrenal disease
* endometrial hyperplasia or endometrial polyp
* cardiovascular or systemic inflammatory diseases.

Where this trial is running

Stockholm, Huddinge and 2 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 Endometriosisendometriosisbiomarkers
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.