{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ulipristal+acetate",
    "query": {
      "intervention": "Ulipristal acetate"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 37,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ulipristal+acetate&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T09:08:45.538Z",
  "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": "NCT03537768",
      "title": "Study Comparing Emergency Contraception Effectiveness in Women Who Weight ≥ 80 kg",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Ulipristal Acetate",
          "type": "DRUG"
        },
        {
          "name": "Levonorgestrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kimberly Myer",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 532,
      "start_date": "2018-07-12",
      "completion_date": "2022-04-20",
      "has_results": false,
      "last_update_posted_date": "2025-11-20",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 18,
      "location_summary": "Los Angeles, California • Sacramento, California • San Francisco, California + 14 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03537768"
    },
    {
      "nct_id": "NCT02922127",
      "title": "Compare Daily Ulipristal Acetate and Combined Oral Contraceptive Effects on Breast Epithelial Cell Proliferation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Ulipristal Acetate",
          "type": "DRUG"
        },
        {
          "name": "Combined Oral Contraceptive Pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 39 Years · Female only"
      },
      "enrollment_count": 29,
      "start_date": "2016-12-16",
      "completion_date": "2019-10-21",
      "has_results": false,
      "last_update_posted_date": "2020-02-07",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 2,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02922127"
    },
    {
      "nct_id": "NCT02147197",
      "title": "A Study of the Efficacy and Safety of a 3-month Treatment Course of Ulipristal Acetate for the Treatment of Abnormal Uterine Bleeding Associated With Leiomyomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Leiomyoma",
        "Uterine Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Ulipristal acetate (UPA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "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": 157,
      "start_date": "2014-03-31",
      "completion_date": "2016-03-29",
      "has_results": true,
      "last_update_posted_date": "2019-04-30",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 28,
      "location_summary": "Tucson, Arizona • San Diego, California • Denver, Colorado + 23 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02147197"
    },
    {
      "nct_id": "NCT01953679",
      "title": "Efficacy Study of Two Continuous Regimens of Oral Daily 5 mg or 10 mg of Ulipristal Acetate (UPA), Versus a Dose of 5.0mg UPA for 24/4 Days",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Focus: Estrogen-free Oral Contraception"
      ],
      "interventions": [
        {
          "name": "Ulipristal Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Premier Research",
      "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": 180,
      "start_date": "2014-03",
      "completion_date": "2015-11",
      "has_results": false,
      "last_update_posted_date": "2016-02-22",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • San Francisco, California • Aurora, Colorado + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01953679"
    },
    {
      "nct_id": "NCT01539720",
      "title": "Levonorgestrel Intrauterine System For Emergency Contraception",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy, Unplanned",
        "Pregnancy; Accident"
      ],
      "interventions": [
        {
          "name": "Ulipristal acetate",
          "type": "DRUG"
        },
        {
          "name": "levonorgestrel IUS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Planned Parenthood of the St. Louis Region and Southwest Missouri",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 45 Years · Female only"
      },
      "enrollment_count": 274,
      "start_date": "2012-12",
      "completion_date": "2018-11-30",
      "has_results": true,
      "last_update_posted_date": "2024-02-20",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Indianapolis, Indiana • St Louis, Missouri",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01539720"
    },
    {
      "nct_id": "NCT02577601",
      "title": "Impact of Combined Hormonal Contraceptives on UPA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Ulipristal Acetate",
          "type": "DRUG"
        },
        {
          "name": "Levonorgestrel (LNG)/Ethinyl estradiol birth control pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "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": 36,
      "start_date": "2015-09-08",
      "completion_date": "2017-06-17",
      "has_results": true,
      "last_update_posted_date": "2019-11-08",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02577601"
    },
    {
      "nct_id": "NCT00290251",
      "title": "Treatment of Uterine Fibroids With the Selective Progesterone Receptor Modulator CDB-2914",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Leiomyoma"
      ],
      "interventions": [
        {
          "name": "ulipristal acetate 20 mg",
          "type": "DRUG"
        },
        {
          "name": "ulipristal acetate 10 mg",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 50 Years · Female only"
      },
      "enrollment_count": 72,
      "start_date": "2006-02",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2024-07-15",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00290251"
    },
    {
      "nct_id": "NCT03296098",
      "title": "Study of the Safety and Efficacy of Ulipristal Acetate (UPA) Used Daily as a Contraceptive",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Contraception",
        "Healthy Female"
      ],
      "interventions": [
        {
          "name": "Ulipristal acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Premier Research",
      "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": "2020-12",
      "completion_date": "2022-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-20",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 18,
      "location_summary": "Los Angeles, California • Sacramento, California • San Francisco, California + 14 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Honolulu",
          "state": "Hawaii"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03296098"
    },
    {
      "nct_id": "NCT00271583",
      "title": "Efficacy Trial of CDB 2914 for Emergency Contraception",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Emergency Contraception"
      ],
      "interventions": [
        {
          "name": "CDB-2914",
          "type": "DRUG"
        },
        {
          "name": "levonorgestrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pittsburgh",
      "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": 1672,
      "start_date": "1999-09",
      "completion_date": "2001-09",
      "has_results": false,
      "last_update_posted_date": "2007-12-17",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 6,
      "location_summary": "Los Angeles, California • Denver, Colorado • New York, New York + 3 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00271583"
    },
    {
      "nct_id": "NCT03325868",
      "title": "Effect of Ulipristal Acetate on Bleeding Patterns and Dysmenorrhea in Women With Adenomyosis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Adenomyosis",
        "Heavy Uterine Bleeding",
        "Dysmenorrhea"
      ],
      "interventions": [
        {
          "name": "Ulipristal Acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "51 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 51 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2018-02",
      "completion_date": "2019-05",
      "has_results": false,
      "last_update_posted_date": "2018-02-08",
      "last_synced_at": "2026-09-24T09:08:45.538Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03325868"
    }
  ]
}