{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Relugolix+%2B+Estradiol+%2B+Norethindrone+Acetate",
    "query": {
      "intervention": "Relugolix + Estradiol + Norethindrone Acetate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 15,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Relugolix+%2B+Estradiol+%2B+Norethindrone+Acetate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T22:46:57.774Z",
  "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": "NCT04756037",
      "title": "Study of the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are at Risk for Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Relugolix Combination Therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma Switzerland GmbH",
      "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": 1164,
      "start_date": "2021-03-18",
      "completion_date": "2026-03-31",
      "has_results": true,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 109,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 89 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04756037"
    },
    {
      "nct_id": "NCT03204318",
      "title": "SPIRIT 1: Efficacy and Safety Study of Relugolix in Women With Endometriosis-Associated Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis Related Pain"
      ],
      "interventions": [
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate placebo",
          "type": "DRUG"
        },
        {
          "name": "Relugolix placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "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": 638,
      "start_date": "2017-12-07",
      "completion_date": "2021-04-08",
      "has_results": false,
      "last_update_posted_date": "2021-06-28",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 43,
      "location_summary": "Dothan, Alabama • Mesa, Arizona • Scottsdale, Arizona + 37 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03204318"
    },
    {
      "nct_id": "NCT03204331",
      "title": "SPIRIT 2: Efficacy and Safety Study of Relugolix in Women With Endometriosis-Associated Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis Related Pain"
      ],
      "interventions": [
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate placebo",
          "type": "DRUG"
        },
        {
          "name": "Relugolix placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "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": 623,
      "start_date": "2017-11-01",
      "completion_date": "2021-05-31",
      "has_results": false,
      "last_update_posted_date": "2021-06-28",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 41,
      "location_summary": "Andalusia, Alabama • Washington D.C., District of Columbia • Aventura, Florida + 36 more",
      "locations": [
        {
          "city": "Andalusia",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03204331"
    },
    {
      "nct_id": "NCT03103087",
      "title": "LIBERTY 2: Efficacy & Safety Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heavy Menstrual Bleeding",
        "Uterine Fibroid"
      ],
      "interventions": [
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate",
          "type": "DRUG"
        },
        {
          "name": "Relugolix placebo",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "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": 382,
      "start_date": "2017-06-14",
      "completion_date": "2020-09-16",
      "has_results": true,
      "last_update_posted_date": "2022-04-20",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 89,
      "location_summary": "Birmingham, Alabama • Mesa, Arizona • Tucson, Arizona + 78 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03103087"
    },
    {
      "nct_id": "NCT05739136",
      "title": "MYFEMBREE®: A Retrospective Cohort Study Using an Administrative Healthcare Database to Assess Pregnancy Outcomes in Women Treated With Relugolix Combination Therapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy Related",
        "Pregnancy Complications",
        "Pregnancy, High Risk"
      ],
      "interventions": [
        {
          "name": "Relugolix + Estradiol + Norethindrone Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma Switzerland GmbH",
      "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": 530,
      "start_date": "2025-04-30",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2025-08-01",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 1,
      "location_summary": "Marlborough, Massachusetts",
      "locations": [
        {
          "city": "Marlborough",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05739136"
    },
    {
      "nct_id": "NCT04714554",
      "title": "A Study of the Effects of Erythromycin on the Pharmacokinetics of Relugolix, Estradiol, and Norethindrone in Healthy Postmenopausal Women and on the Pharmacokinetics of Relugolix in Healthy Adult Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Relugolix/E2/NETA FDC",
          "type": "DRUG"
        },
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Erythromycin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 43,
      "start_date": "2021-01-06",
      "completion_date": "2021-03-29",
      "has_results": false,
      "last_update_posted_date": "2021-09-01",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 1,
      "location_summary": "Hialeah, Florida",
      "locations": [
        {
          "city": "Hialeah",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04714554"
    },
    {
      "nct_id": "NCT03412890",
      "title": "LIBERTY EXTENSION: Efficacy and Safety Extension Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heavy Menstrual Bleeding",
        "Uterine Fibroid"
      ],
      "interventions": [
        {
          "name": "Relugolix",
          "type": "DRUG"
        },
        {
          "name": "Estradiol/norethindrone acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myovant Sciences GmbH",
      "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": 477,
      "start_date": "2017-10-19",
      "completion_date": "2021-01-13",
      "has_results": true,
      "last_update_posted_date": "2024-05-09",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 104,
      "location_summary": "Andalusia, Alabama • Birmingham, Alabama • Mobile, Alabama + 84 more",
      "locations": [
        {
          "city": "Andalusia",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03412890"
    },
    {
      "nct_id": "NCT06439524",
      "title": "The Effect of Medical Management Following Excisional Surgery for Endometriosis: A Randomized Controlled Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "40 mg relugolix, 1 mg estradiol, 0.5 mg norethindrone acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Main Line Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2024-08-15",
      "completion_date": "2028-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 1,
      "location_summary": "Wynnewood, Pennsylvania",
      "locations": [
        {
          "city": "Wynnewood",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06439524"
    },
    {
      "nct_id": "NCT05862272",
      "title": "A Phase 3B Study to Evaluate Bone Mineral Density With Long-Term Use of Relugolix Combination Tablet in Women With Uterine Fibroids or Endometriosis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Uterine Fibroids",
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "Relugolix Combination Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sumitomo Pharma Switzerland GmbH",
      "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": 1000,
      "start_date": "2023-08-14",
      "completion_date": "2030-09",
      "has_results": false,
      "last_update_posted_date": "2025-08-06",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 120,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 98 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05862272"
    },
    {
      "nct_id": "NCT05538689",
      "title": "Surgical Myomectomy Followed by Oral Myfembree Versus Standard of Care Trial (SOUL)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Metrorrhagia",
        "Pelvic Pain",
        "Menorrhagia",
        "Leiomyoma"
      ],
      "interventions": [
        {
          "name": "Myfembree Oral Product",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2022-11-20",
      "completion_date": "2024-10-24",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-10-01T22:46:57.774Z",
      "location_count": 6,
      "location_summary": "Chicago, Illinois • Flossmoor, Illinois • Orland Park, Illinois + 1 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Flossmoor",
          "state": "Illinois"
        },
        {
          "city": "Orland Park",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05538689"
    }
  ]
}