{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Levonorgestrel&page=2",
    "query": {
      "intervention": "Levonorgestrel",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Levonorgestrel&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T15:39:17.659Z",
  "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": "NCT00520455",
      "title": "Randomized Trial of Advanced Provision Emergency Contraception Among Women With Gonorrhea or Chlamydia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "levonorgestrel 0.75mg taken twice 12 hours apart (Plan B) and condoms",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "16 Years to 60 Years · Female only"
      },
      "enrollment_count": 177,
      "start_date": "2004-01",
      "completion_date": "2005-06",
      "has_results": false,
      "last_update_posted_date": "2007-11-15",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00520455"
    },
    {
      "nct_id": "NCT03819114",
      "title": "Pharmacokinetic Study to Evaluate Double-Dose Levonorgestrel Emergency Contraception in Combination With Efavirenz-Based Antiretroviral Therapy or Rifampicin-Containing Anti-Tuberculosis Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections",
        "Tuberculosis"
      ],
      "interventions": [
        {
          "name": "Levonorgestrel (LNG)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "16 Years and older · Female only"
      },
      "enrollment_count": 122,
      "start_date": "2019-05-06",
      "completion_date": "2020-11-30",
      "has_results": true,
      "last_update_posted_date": "2021-12-27",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 7,
      "location_summary": "Chicago, Illinois • New York, New York • Chapel Hill, North Carolina + 3 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03819114"
    },
    {
      "nct_id": "NCT01170390",
      "title": "Oral Contraceptives and Body Mass Index",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Body Weight",
        "Contraceptive Usage"
      ],
      "interventions": [
        {
          "name": "All participants (Aviane)",
          "type": "DRUG"
        },
        {
          "name": "Portia",
          "type": "DRUG"
        },
        {
          "name": "Aviane",
          "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": 32,
      "start_date": "2009-09",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2015-12-31",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01170390"
    },
    {
      "nct_id": "NCT01161095",
      "title": "A Multicenter Analysis of Levonorgestrel-Intrauterine System (LNG-IUS) Use in the Postpartum Period",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contraception",
        "Postpartum Period"
      ],
      "interventions": [
        {
          "name": "LNG-IUS",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "United States Naval Medical Center, Portsmouth",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2010-07-01",
      "completion_date": "2014-05-28",
      "has_results": false,
      "last_update_posted_date": "2025-07-20",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 2,
      "location_summary": "Little Rock, Arkansas • Portsmouth, Virginia",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Portsmouth",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01161095"
    },
    {
      "nct_id": "NCT01546454",
      "title": "Relationship Between the Menstrual Cycle and Heart Disease in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Coronary Heart Disease"
      ],
      "interventions": [
        {
          "name": "Ethinyl Estradiol-Levonorgestrel combination",
          "type": "DRUG"
        },
        {
          "name": "leuprolide acetate",
          "type": "DRUG"
        },
        {
          "name": "Estradiol",
          "type": "DRUG"
        },
        {
          "name": "Progesterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 40 Years · Female only"
      },
      "enrollment_count": 5,
      "start_date": "2012-02",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2017-03-22",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01546454"
    },
    {
      "nct_id": "NCT02863445",
      "title": "Effectiveness of Orally Dosed Emergency Contraception in Obese Women - LNG",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Levonorgestrel-based emergency contraception 1.5 mg",
          "type": "DRUG"
        },
        {
          "name": "Levonorgestrel-based emergency contraception 3.0mg",
          "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": 70,
      "start_date": "2017-07-06",
      "completion_date": "2021-08-16",
      "has_results": true,
      "last_update_posted_date": "2023-06-15",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02863445"
    },
    {
      "nct_id": "NCT01385709",
      "title": "The Influence of the Menstrual Cycle on Lithium and Sertraline Blood Levels",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bipolar Affective Disorders",
        "Cyclothymic Disorder",
        "Schizoaffective Disorder",
        "Major Depressive Disorder",
        "Dysthymic Disorder",
        "Obsessive-Compulsive Disorder",
        "Panic Disorder",
        "Posttraumatic Stress Disorder",
        "Premenstrual Dysphoric Disorder",
        "Social Anxiety Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Weill Medical College of Cornell 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": 29,
      "start_date": "2008-08",
      "completion_date": "2013-08",
      "has_results": false,
      "last_update_posted_date": "2017-02-20",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01385709"
    },
    {
      "nct_id": "NCT02375425",
      "title": "Optimization of the ex Vivo Challenge: Reproductive Infections and Contraception",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "no intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "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": 294,
      "start_date": "2015-06",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2018-12-24",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02375425"
    },
    {
      "nct_id": "NCT01598662",
      "title": "Safety and Expulsion of Delayed Versus Immediate Postpartum Intrauterine Device Placement",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Mirena (levonorgestrel-releasing intrauterine system)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Louisville",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 45 Years · Female only"
      },
      "enrollment_count": 32,
      "start_date": "2009-07",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2018-09-25",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Louisville, Kentucky",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01598662"
    },
    {
      "nct_id": "NCT00117273",
      "title": "A Study to Evaluate Suppression of the Pituitary-Ovarian Axis With Three Different Oral Contraceptive Regimens",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Seasonale [levonorgestrel (LNG)/ethinyl estradiol (EE)]",
          "type": "DRUG"
        },
        {
          "name": "Seasonique (LNG/EE and EE)",
          "type": "DRUG"
        },
        {
          "name": "Portia (LNG/EE)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duramed Research",
      "sponsor_class": "INDUSTRY",
      "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": "2005-06",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2014-05-09",
      "last_synced_at": "2026-09-22T15:39:17.659Z",
      "location_count": 1,
      "location_summary": "Temple, Texas",
      "locations": [
        {
          "city": "Temple",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00117273"
    }
  ]
}