Clinical trial Recruiting at 1 site Observational Ages 18 to 50 Women only

Identifying factors affecting hormonal treatment response in endometriosis patients

Official title: Risk Factors for Non-response to Hormonal Medical Therapy in Patients With Endometriosis

Run by IRCCS Azienda Ospedaliero-Universitaria di Bologna · NCT06413381 · Data updated 2026-11-12

This study is trying to find out why some women with endometriosis don’t respond to hormonal treatments by looking at their symptoms and ultrasound results.

Quick facts

Study typeObservational
Ages18 Years to 50 Years
SexWomen only
Enrollment250 (estimated)
SponsorIRCCS Azienda Ospedaliero-Universitaria di Bologna
Academic / other
Locations1 site (Bologna, BO)
StatusRecruiting
StartedApril 19, 2024
Main results expectedAugust 31, 2028
Study endsNovember 28, 2029
Registry record updatedAugust 1, 2024
Trial IDNCT06413381 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 18 to 50 with endometriosis-related pain symptoms and an indication for hormonal treatment.

Probably not a fit

Patients with contraindications to hormone treatment or those with a history of malignancy or pelvic infections 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 determine the proportion of patients with endometriosis who do not respond to hormonal medical therapy. It will compare the clinical and ultrasonographic characteristics of patients who are unresponsive to treatment with those who are responsive. By analyzing these characteristics, the study seeks to identify potential risk factors associated with non-response to therapy. The findings could help tailor treatment strategies for better patient outcomes.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with endometriosis, enhancing their quality of life.

How similar studies have gone: While this study focuses on a specific aspect of endometriosis treatment response, similar studies have shown promise in identifying risk factors for treatment non-response in other conditions.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age between 18 and 50 years;
* patients with endometriosis-related pain symptoms (dyspareunia, dyschezia, dysmenorrhea, chronic pelvic pain, dysuria, periovulatory pain, with at least one of these symptoms presenting Numerical Pain Rating Scale intensity \> 5);
* indication for administration of oral hormonal medical treatment for endometriosis;
* acquisition of informed consent.

Exclusion Criteria:

* patients with contraindications to oral hormone treatment
* current or previous pelvic infections
* history of malignancy or current suspicion of gynecologic malignant lesions
* previous pelvic surgery (hysterectomy, salpingectomy, ovarian cyst removal, myomectomy, surgery for endometriosis, bowel resections)
* positive history of other causes of chronic pelvic pain
* post-menopausal status

Where it's running

  • IRCCS Azienda Ospedaliero-Universitaria, Policlinico Sant'Orsola
    Bologna, Bo, Italy
    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.