{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Linzagolix",
    "query": {
      "intervention": "Linzagolix"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T18:33:49.237Z",
  "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": "NCT03070951",
      "title": "Efficacy and Safety of OBE2109 in Subjects With Heavy Menstrual Bleeding Associated With Uterine Fibroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uterine Fibroids",
        "Heavy Menstrual Bleeding"
      ],
      "interventions": [
        {
          "name": "OBE2109",
          "type": "DRUG"
        },
        {
          "name": "Placebo to match OBE2109",
          "type": "DRUG"
        },
        {
          "name": "Placebo to match Add-back",
          "type": "DRUG"
        },
        {
          "name": "Add-back",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ObsEva SA",
      "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": 511,
      "start_date": "2017-05-23",
      "completion_date": "2020-10-04",
      "has_results": false,
      "last_update_posted_date": "2021-03-05",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 23,
      "location_summary": "Chino, California • Huntington Park, California • San Diego, California + 19 more",
      "locations": [
        {
          "city": "Chino",
          "state": "California"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Bradenton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03070951"
    },
    {
      "nct_id": "NCT02778399",
      "title": "A Study to Assess the Efficacy and Safety of OBE2109 in Subjects With Endometriosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "OBE2109",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ObsEva SA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 328,
      "start_date": "2016-07",
      "completion_date": "2019-07-01",
      "has_results": true,
      "last_update_posted_date": "2022-07-21",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 71,
      "location_summary": "Chandler, Arizona • Scottsdale, Arizona • Arcadia, California + 59 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Arcadia",
          "state": "California"
        },
        {
          "city": "Chino",
          "state": "California"
        },
        {
          "city": "Huntington Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02778399"
    },
    {
      "nct_id": "NCT03992846",
      "title": "Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Add-back capsule (E2 1 mg / NETA 0.5 mg)",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsule to match Add-back capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kissei Pharmaceutical Co., Ltd.",
      "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": 486,
      "start_date": "2019-06-13",
      "completion_date": "2022-04-01",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Chiefland, Florida + 19 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Chiefland",
          "state": "Florida"
        },
        {
          "city": "Homestead",
          "state": "Florida"
        },
        {
          "city": "Lake City",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03992846"
    },
    {
      "nct_id": "NCT03986944",
      "title": "A Phase 3 Study to Confirm the Efficacy and Safety of Linzagolix to Treat Endometriosis-associated Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Add-back capsule (E2 1 mg / NETA 0.5 mg)",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsule to match Add-back capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kissei Pharmaceutical Co., Ltd.",
      "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": 85,
      "start_date": "2019-05-23",
      "completion_date": "2021-02-16",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 107,
      "location_summary": "Birmingham, Alabama • Mesa, Arizona • Phoenix, Arizona + 79 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03986944"
    },
    {
      "nct_id": "NCT03070899",
      "title": "Efficacy and Safety of OBE2109 in Subjects With Heavy Menstrual Bleeding Associated With Uterine Fibroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uterine Fibroids",
        "Heavy Menstrual Bleeding"
      ],
      "interventions": [
        {
          "name": "OBE2109",
          "type": "DRUG"
        },
        {
          "name": "Placebo to match OBE2109",
          "type": "DRUG"
        },
        {
          "name": "Placebo to match Add-back",
          "type": "DRUG"
        },
        {
          "name": "Add-back",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ObsEva SA",
      "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": 526,
      "start_date": "2017-04-20",
      "completion_date": "2021-04-12",
      "has_results": false,
      "last_update_posted_date": "2021-06-09",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 116,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Mobile, Alabama + 93 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Vestavia Hills",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03070899"
    },
    {
      "nct_id": "NCT03962049",
      "title": "Safety and Pharmacokinetics Study of Linzagolix in Female Subjects With Normal and Impaired Hepatic Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hepatic Impairment",
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Linzagolix",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ObsEva SA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 75 Years · Female only"
      },
      "enrollment_count": 24,
      "start_date": "2019-05-15",
      "completion_date": "2019-11-01",
      "has_results": false,
      "last_update_posted_date": "2020-01-13",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 2,
      "location_summary": "Hialeah, Florida • Orlando, Florida",
      "locations": [
        {
          "city": "Hialeah",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03962049"
    },
    {
      "nct_id": "NCT04335591",
      "title": "Extension to Study on Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain (EDELWEISS 6)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Add-back capsule (E2 1 mg / NETA 0.5 mg)",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsule to match Add-back capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kissei Pharmaceutical Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 356,
      "start_date": "2020-03-05",
      "completion_date": "2022-12-15",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 8,
      "location_summary": "Dothan, Alabama • Homestead, Florida • Tampa, Florida + 5 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Homestead",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Nampa",
          "state": "Idaho"
        },
        {
          "city": "Shawnee Mission",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04335591"
    },
    {
      "nct_id": "NCT04372121",
      "title": "Extension to Study on Efficacy and Safety of Linzagolix for the Treatment of Endometriosis-associated Pain",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Add-back capsule (E2 1 mg / NETA 0.5 mg)",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 75 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo tablet to match 200 mg linzagolix tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsule to match Add-back capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kissei Pharmaceutical Co., Ltd.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2020-03-23",
      "completion_date": "2021-02-16",
      "has_results": true,
      "last_update_posted_date": "2025-04-02",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 23,
      "location_summary": "Little Rock, Arkansas • Norwalk, California • Greenwood Village, Colorado + 17 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Norwalk",
          "state": "California"
        },
        {
          "city": "Greenwood Village",
          "state": "Colorado"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04372121"
    },
    {
      "nct_id": "NCT03961932",
      "title": "Safety and Pharmacokinetics of Linzagolix in Female Subjects With Normal and Impaired Renal Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Renal Impairment",
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Linzagolix",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ObsEva SA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 33,
      "start_date": "2019-05-15",
      "completion_date": "2020-01-31",
      "has_results": false,
      "last_update_posted_date": "2020-03-05",
      "last_synced_at": "2026-09-06T18:33:49.237Z",
      "location_count": 2,
      "location_summary": "Orlando, Florida • Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03961932"
    }
  ]
}