New hope for endometriosis sufferers: drug trial targets severe pain
NCT ID NCT05101317
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested an experimental drug called HMI-115 in 142 women with moderate-to-severe endometriosis pain. Over 12 weeks, researchers compared the drug to a placebo to see if it safely reduces pain during periods and pelvic pain. The goal is to find a new treatment option for this chronic condition.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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142 people
The number who actually took part.
- Started
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Oct 2021
- Finished
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Mar 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 49 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Pre-menopausal female subjects, between 18 and 49 years of age, inclusive, at the time of signing informed consent. 2. Subject must have a clinical diagnosis of endometriosis (laparoscopy or laparotomy) as documented by medical records within 10 years before screening. 3. Subject must have a Composite Pelvic Signs and Symptoms Score total score of ≥ 6 with a score of at least 2 for DYS and at least 2 for NMPP at screening. 4. Subject agrees not to participate in another interventional study while participating in the present study. Exclusion Criteria: 1. Subject is pregnant or breastfeeding or is planning a pregnancy during the study period. 2. Subject has chronic pelvic pain that is not caused by endometriosis or has any other chronic pain syndrome or other chronic therapy, or that would interfere with the assessment of endometriosis-related pain 3. Subject has clinically significant gynecologic condition other than endometriosis 4. Subject has previous history of a severe, life-threatening or other significant sensitivity to any opioids or non-steroidal anti inflammatory drugs (NSAIDS) or any contraindication to their use such as gastrointestinal ulcer or bleeding 5. Subject has history of hysterectomy and/or bilateral oophorectomy 6. Subjects with past or present pituitary tumor growth 7. Subjects has a history of osteoporosis or other metabolic bone disease
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Instytut Matki i Dziecka
Warsaw, Masovian Voivodeship, Poland
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Peking Union Medical College Hospital
Beijing, Beijing Municipality, 100703, China
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Physicians' Research Options, LLC- Corner Canyon Clinic
Draper, Utah, 84020, United States
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Specjalistyczna Poradnia Ginekologiczna Gabinet Ginekologiczny Dr med. Janusza Tomaszewskiego
Bialystok, Podlaskie Voivodeship, Poland
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Tidewater Clinical Research/TPW
Norfolk, Virginia, 23502, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can Pre-Surgery pelvic floor therapy stop endometriosis pain after the operation?
- Appendix: the hidden driver of endometriosis pain?
- Allergy pill put to the test against endometriosis pain
- Can ultrasound and tissue clues reveal which endometriosis lesions carry cancer risk?
- Can AI personalize exercise to ease pelvic pain?
- Can AI learn to spot endometriosis and fibroids on ultrasound?