{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=OC+%28ethinyl+estradiol+and+levonorgestrel%29",
    "query": {
      "intervention": "OC (ethinyl estradiol and levonorgestrel)"
    },
    "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": "2026-10-08T14:02:33.037Z",
  "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": "NCT03662516",
      "title": "A Study to Determine the Effects of PF-04965842 on the Pharmacokinetics of Oral Contraceptive Steroids in Healthy Female Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Females"
      ],
      "interventions": [
        {
          "name": "PF-04965842",
          "type": "DRUG"
        },
        {
          "name": "Ethinyl estradiol (EE) and levonorgestrel (LN)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 17,
      "start_date": "2018-09-26",
      "completion_date": "2019-01-19",
      "has_results": false,
      "last_update_posted_date": "2020-03-23",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03662516"
    },
    {
      "nct_id": "NCT04267250",
      "title": "Effect Of Multiple Dose PF-06700841 On The Pharmacokinetics Of Single Dose Oral Contraceptive Steroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Female Volunteers"
      ],
      "interventions": [
        {
          "name": "PF-06700841",
          "type": "DRUG"
        },
        {
          "name": "Ethinyl estradiol (EE) and levonorgestrel (LN)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 18,
      "start_date": "2020-08-24",
      "completion_date": "2020-11-06",
      "has_results": false,
      "last_update_posted_date": "2020-11-13",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 2,
      "location_summary": "Coral Gables, Florida • Miami, Florida",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04267250"
    },
    {
      "nct_id": "NCT06071442",
      "title": "Potential Drug Interaction Study Between Vemircopan and Rosuvastatin, Metformin, Levonorgestrel/Ethinyl Estradiol-containing Oral Contraceptives, and Carbamazepine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Vemircopan",
          "type": "DRUG"
        },
        {
          "name": "Rosuvastatin",
          "type": "DRUG"
        },
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Levonorgestrel / Ethinyl Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Carbamazepine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alexion Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 60,
      "start_date": "2024-01-17",
      "completion_date": "2024-04-12",
      "has_results": false,
      "last_update_posted_date": "2025-08-12",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "Brooklyn, Maryland",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06071442"
    },
    {
      "nct_id": "NCT04018274",
      "title": "Effect of PF-06651600 on the Pharmacokinetics of Oral Contraceptive Steroids",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "PF-06651600",
          "type": "DRUG"
        },
        {
          "name": "Ethinyl estradiol (EE) and levonorgestrel(LN)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 29,
      "start_date": "2019-08-09",
      "completion_date": "2019-10-16",
      "has_results": false,
      "last_update_posted_date": "2019-11-15",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 2,
      "location_summary": "Coral Gables, Florida • Miami, Florida",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04018274"
    },
    {
      "nct_id": "NCT03324685",
      "title": "A Drug Interaction Study of BIIB074 and an Oral Contraceptive Regimen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Drug Interactions"
      ],
      "interventions": [
        {
          "name": "BIIB074",
          "type": "DRUG"
        },
        {
          "name": "OC (ethinyl estradiol and levonorgestrel)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "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": "2017-11-11",
      "completion_date": "2018-03-15",
      "has_results": false,
      "last_update_posted_date": "2018-09-25",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "Daytona Beach, Florida",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03324685"
    },
    {
      "nct_id": "NCT01941134",
      "title": "Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Bariatric Surgery Candidate",
        "Contraception"
      ],
      "interventions": [
        {
          "name": "ethinyl estradiol-levonorgestrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 40 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2013-04",
      "completion_date": "2017-12-06",
      "has_results": false,
      "last_update_posted_date": "2018-03-21",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01941134"
    },
    {
      "nct_id": "NCT04309643",
      "title": "Drug-drug Interaction Study of CTP-543 and Oral Contraceptives in Healthy Female Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "CTP-543",
          "type": "DRUG"
        },
        {
          "name": "Combined oral contraceptive containing Ethinyl estradiol (EE) and Levonorgestrel (LNG)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Concert Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 65 Years · Female only"
      },
      "enrollment_count": 21,
      "start_date": "2020-06-09",
      "completion_date": "2020-07-08",
      "has_results": false,
      "last_update_posted_date": "2020-07-16",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04309643"
    },
    {
      "nct_id": "NCT01236768",
      "title": "Transdermal Contraceptive Delivery System (TCDS), Also Known as AG200-15 Patch Arm",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "AG200-15",
          "type": "DRUG"
        },
        {
          "name": "Levora",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Agile Therapeutics",
      "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": 407,
      "start_date": "2010-10",
      "completion_date": "2011-06",
      "has_results": true,
      "last_update_posted_date": "2017-09-15",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 21,
      "location_summary": "Mobile, Alabama • Green Valley, Arizona • Tucson, Arizona + 16 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Green Valley",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01236768"
    },
    {
      "nct_id": "NCT02846142",
      "title": "Study to Assess the Safety, Tolerability, PK, ECG Effects, Food Effect, and Drug-drug Interaction (DDI) of Hormonal Contraceptives of PTI-428 in Healthy Female Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "PTI-428",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "ethinyl estradiol and levonorgestrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Proteostasis Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 94,
      "start_date": "2016-06",
      "completion_date": "2017-03",
      "has_results": false,
      "last_update_posted_date": "2018-05-24",
      "last_synced_at": "2026-10-08T14:02:33.037Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02846142"
    }
  ]
}