NCT06963177 A Phase IIa Clinical Study to Assess the Efficacy and Safety of GenSci048 in Patients With Moderate to Severe Endometriosis-Associated Pain

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 200 participants in total. It began in 2025-05-26 with a primary completion date of 2028-05-15.

Brief Summary

This study is designed to evaluate the safety and efficacy of GenSci048 for moderate to severe endometriosis-associated pain treatment.

Eligibility Criteria

Inclusion Criteria: 1. Pre-menopausal female participants, between 18 and 49 years of age, inclusive, at the time of signing informed consent. 2. Participants must have a diagnosis of endometriosis within 10 years before screening. 3. Have moderate to severe endometrial related pain. 4. Have at least one regular, natural menstrual cycles (ranging from 21 to 35 days (inclusive)) before and during the screening period. 5. Agree to switch from her usual analgesic medication to only that which is permitted in the study from the screening period to the end of treatment and agree to stop using other treatments for endometriosis. 6. Agree to use non-hormonal contraception from the time of signing the informed consent until 4 weeks after the last dose of the study medication. Exclusion Criteria: 1. Participants who have previously received hysterectomy and/or bilateral oophorectomy, or plan to undergo these procedures during the study period. 2. Participants who suffer from chronic pelvic and/or non-pelvic pain that is not caused by EM and require chronic analgesia or other chronic treatment, which is expected to affect the assessment of EAP. 3. Pelvic ultrasound screening indicating a need for surgery or suspicion of malignancy. 4. Participants with abnormal and undiagnosed vaginal and/or uterine bleeding within 3 months prior to screening. 5. Participants who plan to schedule elective surgery during the study; or those who have had a surgery within 4 months prior to screening and need ongoing pain management. 6. History of severe depression or post-traumatic stress disorder within the two years prior to screening, or history of any other severe mental disorder at any time. 7. History of drug or alcohol abuse within the six months prior to screening. 8. Participants who have participated in any other interventional clinical trial (including clinical trials of drugs and devices) within 1 month prior to screening. 9. Have used a prohibited long-acting anesthetic or immediate-release anesthetic for more than 2 consecutive weeks for the treatment of endometriosis associated pain in the 6 months prior to screening. 10. Participant is pregnant, breast feeding, or planning a pregnancy.

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