{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+for+Elagolix", "query": { "intervention": "Placebo for Elagolix" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 12, "total_pages": 2, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+for+Elagolix&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-26T07:33:21.228Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT06375811", "title": "Pre-IVF Treatment With a GnRH Antagonist in Women With endometriosis_temp", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Infertility", "Endometriosis" ], "interventions": [ { "name": "Elagolix 200 MG", "type": "DRUG" }, { "name": "Placebo or SOC IVF", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Yale University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "40 Years", "sex": "FEMALE", "summary": "18 Years to 40 Years · Female only" }, "enrollment_count": 97, "start_date": "2024-03-16", "completion_date": "2027-03-31", "has_results": false, "last_update_posted_date": "2026-06-05", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 5, "location_summary": "Aurora, Colorado • New Haven, Connecticut • Chicago, Illinois + 2 more", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "New Haven", "state": "Connecticut" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "Morrisville", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT06375811" }, { "nct_id": "NCT03886220", "title": "A Study to Evaluate the Safety and Efficacy of Elagolix for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Uterine Fibroids" ], "interventions": [ { "name": "Elagolix", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AbbVie", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "51 Years", "sex": "FEMALE", "summary": "18 Years to 51 Years · Female only" }, "enrollment_count": 82, "start_date": "2019-04-12", "completion_date": "2021-04-28", "has_results": true, "last_update_posted_date": "2022-03-31", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 45, "location_summary": "Birmingham, Alabama • Searcy, Arkansas • La Mesa, California + 35 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Searcy", "state": "Arkansas" }, { "city": "La Mesa", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03886220" }, { "nct_id": "NCT03213457", "title": "A Clinical Study to Evaluate the Safety and Efficacy of Elagolix in Participants With Moderate to Severe Endometriosis-Associated Pain", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Endometriosis" ], "interventions": [ { "name": "Estradiol/Norethindrone Acetate", "type": "DRUG" }, { "name": "Placebo for Elagolix", "type": "DRUG" }, { "name": "Elagolix", "type": "DRUG" }, { "name": "Placebo for E2/NETA", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AbbVie", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "49 Years", "sex": "FEMALE", "summary": "18 Years to 49 Years · Female only" }, "enrollment_count": 681, "start_date": "2017-07-07", "completion_date": "2023-12-06", "has_results": true, "last_update_posted_date": "2024-12-20", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 188, "location_summary": "Birmingham, Alabama • Fairhope, Alabama • Mobile, Alabama + 140 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Fairhope", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT03213457" }, { "nct_id": "NCT02691494", "title": "Efficacy and Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women (Replicate Study)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Uterine Fibroids", "Heavy Menstrual Bleeding" ], "interventions": [ { "name": "Elagolix", "type": "DRUG" }, { "name": "Placebo for Estradiol/Norethindrone Acetate", "type": "DRUG" }, { "name": "Estradiol/Norethindrone Acetate", "type": "DRUG" }, { "name": "Placebo for Elagolix", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AbbVie", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "51 Years", "sex": "FEMALE", "summary": "18 Years to 51 Years · Female only" }, "enrollment_count": 378, "start_date": "2016-02-03", "completion_date": "2019-01-23", "has_results": true, "last_update_posted_date": "2021-07-13", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 103, "location_summary": "Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 89 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Dothan", "state": "Alabama" }, { "city": "Fairhope", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Mesa", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT02691494" }, { "nct_id": "NCT02925494", "title": "An Extension Study to Evaluate the Efficacy and Safety of Elagolix in Premenopausal Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Uterine Fibroids", "Heavy Menstrual Bleeding" ], "interventions": [ { "name": "Estradiol/Norethindrone Acetate", "type": "DRUG" }, { "name": "Elagolix", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AbbVie", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "51 Years", "sex": "FEMALE", "summary": "18 Years to 51 Years · Female only" }, "enrollment_count": 433, "start_date": "2016-09-14", "completion_date": "2019-03-22", "has_results": true, "last_update_posted_date": "2021-07-13", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 121, "location_summary": "Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 90 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Dothan", "state": "Alabama" }, { "city": "Fairhope", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT02925494" }, { "nct_id": "NCT04173169", "title": "Pre-IVF Treatment With a GnRH Antagonist in Women With Endometriosis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Infertility", "Endometriosis" ], "interventions": [ { "name": "Elagolix 200 MG", "type": "DRUG" }, { "name": "Placebo or SOC IVF", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Yale University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "40 Years", "sex": "FEMALE", "summary": "18 Years to 40 Years · Female only" }, "enrollment_count": 103, "start_date": "2022-03-15", "completion_date": "2025-05-02", "has_results": true, "last_update_posted_date": "2026-06-12", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 5, "location_summary": "Aurora, Colorado • New Haven, Connecticut • Chicago, Illinois + 2 more", "locations": [ { "city": "Aurora", "state": "Colorado" }, { "city": "New Haven", "state": "Connecticut" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "Morrisville", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT04173169" }, { "nct_id": "NCT04333576", "title": "Study Of Oral Elagolix Tablets In Combination With Combined Oral Contraceptive Capsules/Tablets To Assess Dysmenorrhea Response In Adult Female Participants With Endometriosis And Associated Moderate To Severe Pain", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Endometriosis" ], "interventions": [ { "name": "Elagolix", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Combined Oral Contraceptive", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "AbbVie", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "49 Years", "sex": "FEMALE", "summary": "18 Years to 49 Years · Female only" }, "enrollment_count": 800, "start_date": "2020-08-10", "completion_date": "2027-07", "has_results": false, "last_update_posted_date": "2026-06-12", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 176, "location_summary": "Anniston, Alabama • Birmingham, Alabama • Dothan, Alabama + 134 more", "locations": [ { "city": "Anniston", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT04333576" }, { "nct_id": "NCT04614246", "title": "Study to Gather Information How Well Three Different Doses of BAY1817080 Given Twice Daily Over 12 Weeks Work in Comparison to an Inactive Pill (Placebo) and Elagolix in Women Suffering From Pain Related to a Condition Where the Tissue That Usually Grows Inside the Womb Grows Outside of the Womb", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Endometriosis" ], "interventions": [ { "name": "BAY1817080", "type": "DRUG" }, { "name": "Elagolix", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bayer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 215, "start_date": "2021-01-29", "completion_date": "2022-05-03", "has_results": true, "last_update_posted_date": "2023-08-01", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 47, "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 36 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Encinitas", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT04614246" }, { "nct_id": "NCT06253702", "title": "Brain Blood Flow Responses to Stress: Sex Differences", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Cerebrovascular Disorders" ], "interventions": [ { "name": "Indomethacin", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Orilissa", "type": "DRUG" }, { "name": "Testosterone gel", "type": "DRUG" }, { "name": "Anastrozole", "type": "DRUG" }, { "name": "Estradiol", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Wisconsin, Madison", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "40 Years", "sex": "ALL", "summary": "18 Years to 40 Years" }, "enrollment_count": 22, "start_date": "2024-07-24", "completion_date": "2025-05-31", "has_results": true, "last_update_posted_date": "2026-09-24", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 1, "location_summary": "Madison, Wisconsin", "locations": [ { "city": "Madison", "state": "Wisconsin" } ], "official_url": "https://clinicaltrials.gov/study/NCT06253702" }, { "nct_id": "NCT06798571", "title": "Role of Menopause in Thermoregulation", "overall_status": "RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Menopause", "Aging" ], "interventions": [ { "name": "Elagolix Oral Tablet", "type": "DRUG" }, { "name": "Estradiol patch", "type": "DRUG" }, { "name": "cellulose placebo", "type": "OTHER" }, { "name": "placebo patch", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Penn State University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "42 Years", "maximum_age": "64 Years", "sex": "FEMALE", "summary": "42 Years to 64 Years · Female only" }, "enrollment_count": 24, "start_date": "2025-03-01", "completion_date": "2026-09-01", "has_results": false, "last_update_posted_date": "2026-06-24", "last_synced_at": "2026-09-26T07:33:21.228Z", "location_count": 1, "location_summary": "University Park, Pennsylvania", "locations": [ { "city": "University Park", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT06798571" } ] }