Laparoscopic drainage plus hormonal therapy for large ovarian endometriomas

Evaluate the Therapy of Large Ovarian Endometrioma

Observational University Hospital, Lille · NCT04704115

This study will test whether laparoscopic cyst drainage followed by a GnRH agonist helps women of childbearing age with ovarian endometriomas 6 cm or larger have fewer recurrences and preserve ovarian reserve.

Quick facts

Study typeObservational
Enrollment62 (estimated)
Ages18 Years to 40 Years
SexFemale
SponsorUniversity Hospital, Lille Academic / other
Locations1 site (Lisle-sur-Tarn)
Trial IDNCT04704115 on ClinicalTrials.gov

What this trial studies

This is a prospective observational study enrolling women of childbearing age with ovarian endometriomas measuring 6 cm or more. Participants managed at Lille will undergo simple laparoscopic drainage followed by treatment with a GnRH agonist as practiced at the center. The study will track cyst recurrence and ovarian reserve over time, including measurement of anti-Müllerian hormone (AMH) and imaging follow-up. Data will be collected without randomization to compare outcomes of this conservative approach against expected recurrence and reserve patterns.

Who should consider this trial

Good fit: Women of childbearing age with one or bilateral ovarian endometriomas measuring 6 cm or larger on ultrasound or MRI who are eligible for laparoscopy and not pregnant.

Not a fit: Patients with cysts showing radiographic or intraoperative atypia, those who are pregnant, or those with contraindications to GnRH agonists, laparoscopy, or general anesthesia are unlikely to benefit from this approach.

Why it matters

Potential benefit: If successful, this approach could reduce the need for cystectomy and help preserve ovarian reserve and fertility in women with large endometriomas.

How similar studies have performed: Complete cystectomy has been well studied and lowers recurrence but often reduces ovarian reserve, whereas laparoscopic drainage combined with postoperative hormonal suppression is less well studied and has limited supporting data.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Endometrioma size ≥ 6cm determined by MRI or ultrasonography
* Women with isolated endometrioma or other extraovarian endometriosis: peritoneal, infiltrating endometriotic lesions and adenomyosis.
* Cyst single or bilateral

Exclusion Criteria:

* Cyst with radiographic or macroscopic in laparoscopy atypia
* Pregnancy
* Patient with contraindication to GnRH agonist (Enantone® 3,75 mg et Decapeptyl® 3 mg)
* Patient with contraindication to laparoscopy
* Patient with contraindication to general anesthesia
* Subject refusing to participate in the study

Where this trial is running

Lisle-sur-Tarn

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 EndometriomaEndometriosis OvaryEndometriomas measuring 6 cm or moreOvarian Endometriomalaparoscopic drainagerecurrenceAMHGnRH agonist therapy
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.