{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Loestrin+1%2F20",
    "query": {
      "intervention": "Loestrin 1/20"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T02:49:14.433Z",
  "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": "NCT06310616",
      "title": "A Study to Investigate the Potential Drug-Drug Interaction Between VH4524184 and Oral Contraceptive (Loestrin) in Healthy Adult Female Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "VH4524184",
          "type": "DRUG"
        },
        {
          "name": "Loestrin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ViiV Healthcare",
      "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": 26,
      "start_date": "2024-03-06",
      "completion_date": "2024-08-15",
      "has_results": false,
      "last_update_posted_date": "2024-12-10",
      "last_synced_at": "2026-09-04T02:49:14.433Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06310616"
    },
    {
      "nct_id": "NCT02214550",
      "title": "Chronic Pain Risk Associated With Menstrual Period Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cystitis, Interstitial",
        "Dysmenorrhea",
        "Migraine Disorders",
        "Pelvic Pain",
        "Endometriosis",
        "Visceral Pain",
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "cyclic microgestin 1/20",
          "type": "DRUG"
        },
        {
          "name": "continuous microgestin 1/20",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endeavor Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 353,
      "start_date": "2014-07",
      "completion_date": "2021-01",
      "has_results": true,
      "last_update_posted_date": "2023-06-18",
      "last_synced_at": "2026-09-04T02:49:14.433Z",
      "location_count": 1,
      "location_summary": "Evanston, Illinois",
      "locations": [
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02214550"
    },
    {
      "nct_id": "NCT00475189",
      "title": "Study of Loestrin 24(24 Days of \"Real\" Pills) Fe Versus Loestrin 1/20 (21 \"Real\" Pills)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pelvic Pain",
        "Headaches",
        "Emotional"
      ],
      "interventions": [
        {
          "name": "loestrin 24/4 vs loestrin 1/20",
          "type": "DRUG"
        },
        {
          "name": "loestrin 1/20",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Scott and White Hospital & Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "48 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 48 Years · Female only"
      },
      "enrollment_count": 51,
      "start_date": "2007-06",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2011-07-25",
      "last_synced_at": "2026-09-04T02:49:14.433Z",
      "location_count": 1,
      "location_summary": "Temple, Texas",
      "locations": [
        {
          "city": "Temple",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00475189"
    },
    {
      "nct_id": "NCT01318005",
      "title": "Oral Contraceptive (OC) Estrogen Dose and Breast Proliferation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Oral Contraceptive"
      ],
      "interventions": [
        {
          "name": "Oral Contraceptive: Ortho-Novum® 1/35",
          "type": "DRUG"
        },
        {
          "name": "Oral Contraceptive: Ovcon® 35",
          "type": "DRUG"
        },
        {
          "name": "Oral Contraceptive: Microgestin Fe® 1/20",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Southern California",
      "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": 82,
      "start_date": "2011-02-14",
      "completion_date": "2015-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-04T02:49:14.433Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01318005"
    },
    {
      "nct_id": "NCT00704912",
      "title": "Treatment of Hyperandrogenism Versus Insulin Resistance in Infertile Polycystic Ovary Syndrome (PCOS) Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Polycystic Ovary Syndrome"
      ],
      "interventions": [
        {
          "name": "Orlistat/Meal Replacement/Lifestyle Modification",
          "type": "DRUG"
        },
        {
          "name": "Loestrin 1/20",
          "type": "DRUG"
        },
        {
          "name": "Combination of treatments",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "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": 217,
      "start_date": "2008-09",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2016-11-07",
      "last_synced_at": "2026-09-04T02:49:14.433Z",
      "location_count": 2,
      "location_summary": "Hershey, Pennsylvania • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00704912"
    },
    {
      "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": "2026-09-04T02:49:14.433Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00999479"
    }
  ]
}