{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Norethindrone+acetate",
    "query": {
      "intervention": "Norethindrone acetate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 89,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Norethindrone+acetate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T01:23:35.241Z",
  "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": "NCT04948489",
      "title": "IUD and Norethindrone Acetate for Treatment of Endometriosis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endometriosis"
      ],
      "interventions": [
        {
          "name": "norethindrone acetate (NETA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "24 Years",
        "sex": "FEMALE",
        "summary": "13 Years to 24 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2026-01-01",
      "completion_date": "2029-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-03-21",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04948489"
    },
    {
      "nct_id": "NCT03262740",
      "title": "The Effect of BMS-986195 Combined With an Oral Contraceptive (Ethinyl Estradiol/Norethindrone) in Healthy Female Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "BMS-986195",
          "type": "DRUG"
        },
        {
          "name": "Loestrin 1.5/30 (1.5 mg norethindrone acetate/30 μg ethinyl estradiol)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 58,
      "start_date": "2017-09-11",
      "completion_date": "2018-01-30",
      "has_results": false,
      "last_update_posted_date": "2020-03-20",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 2,
      "location_summary": "South Miami, Florida • Salt Lake City, Utah",
      "locations": [
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03262740"
    },
    {
      "nct_id": "NCT07293728",
      "title": "A Randomized Feasibility Trial Comparing Drospirenone and Norethindrone for Postpartum Hypertension Management in Preeclampsia",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertension",
        "Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Norethindrone 0.35 MG",
          "type": "DRUG"
        },
        {
          "name": "Drospirenone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "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": 50,
      "start_date": "2026-07",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-19",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07293728"
    },
    {
      "nct_id": "NCT04709094",
      "title": "A Drug Interaction Study of Danicopan",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Danicopan",
          "type": "DRUG"
        },
        {
          "name": "Warfarin",
          "type": "DRUG"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Ethinyl Estradiol/Norethindrone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alexion Pharmaceuticals, Inc.",
      "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": 52,
      "start_date": "2019-07-28",
      "completion_date": "2020-04-17",
      "has_results": false,
      "last_update_posted_date": "2021-01-14",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04709094"
    },
    {
      "nct_id": "NCT03905941",
      "title": "Relative Desirability of Metformin vs. Birth Control Pill in Treating PCOS in Women of Later Reproductive Age",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome"
      ],
      "interventions": [
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Oral combined hormonal contraceptives",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 49 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2021-08-23",
      "completion_date": "2024-11-25",
      "has_results": false,
      "last_update_posted_date": "2026-02-23",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03905941"
    },
    {
      "nct_id": "NCT01040845",
      "title": "A Pharmacokinetic Study of Colchicine With an Oral Contraceptive",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pharmacokinetics"
      ],
      "interventions": [
        {
          "name": "Norethindrone/Ethinyl Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Colchicine",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for Colchicine)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mutual Pharmaceutical Company, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 30,
      "start_date": "2007-08",
      "completion_date": "2008-02",
      "has_results": true,
      "last_update_posted_date": "2010-01-05",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Fargo, North Dakota",
      "locations": [
        {
          "city": "Fargo",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01040845"
    },
    {
      "nct_id": "NCT01344369",
      "title": "Norethindrone/Ethinyl Estradiol 0.4 mg/35 Mcg Chewable Tablets Under Non-Fasted Conditions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Norethindrone/Ethinyl Estradiol",
          "type": "DRUG"
        },
        {
          "name": "FEMCON® Fe",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Pharmaceuticals USA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 36,
      "start_date": "2008-08",
      "completion_date": "2008-09",
      "has_results": true,
      "last_update_posted_date": "2011-05-30",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01344369"
    },
    {
      "nct_id": "NCT05916469",
      "title": "Heavy Menstrual Bleeding Progestin Treatment in Bleeding Disorders Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Heavy Menstrual Bleeding",
        "Bleeding Disorder",
        "Von Willebrand Diseases"
      ],
      "interventions": [
        {
          "name": "Levonorgestrel Intrauterine System",
          "type": "DRUG"
        },
        {
          "name": "Norethindrone Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "24 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 24 Years · Female only"
      },
      "enrollment_count": 300,
      "start_date": "2025-09-24",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2025-12-17",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 9,
      "location_summary": "Palo Alto, California • Aurora, Colorado • Atlanta, Georgia + 5 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05916469"
    },
    {
      "nct_id": "NCT00821496",
      "title": "Evaluate the Effect of VI-0521 on the Pharmacokinetics of Oral Contraceptive in Healthy Female Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "ethinyl estradiol, norethindrone, VI-0521",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "VIVUS LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "64 Years",
        "sex": "FEMALE",
        "summary": "19 Years to 64 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2009-01",
      "completion_date": "2009-04",
      "has_results": false,
      "last_update_posted_date": "2009-12-02",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00821496"
    },
    {
      "nct_id": "NCT00999479",
      "title": "Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Endometrioma"
      ],
      "interventions": [
        {
          "name": "Norethindrone acetate and ethinyl estradiol tablets, USP",
          "type": "DRUG"
        },
        {
          "name": "ferrous fumarate (placebo) tablets",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 35 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2009-10",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2013-12-10",
      "last_synced_at": "2026-09-03T01:23:35.241Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00999479"
    }
  ]
}