{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=EFV",
    "query": {
      "intervention": "EFV"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 104,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=EFV&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T11:26:49.896Z",
  "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": "NCT01980342",
      "title": "Pharmacokinetics and Pharmacodynamics of the Etonogestrel Contraceptive Implant When Co-administered With Efavirenz",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Drug Interaction"
      ],
      "interventions": [
        {
          "name": "Efavirenz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "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": 1,
      "start_date": "2014-10",
      "completion_date": "2018-04-04",
      "has_results": true,
      "last_update_posted_date": "2018-05-11",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01980342"
    },
    {
      "nct_id": "NCT01571414",
      "title": "Evaluating the Safety and Drug Interaction of PA-824, an Investigational Tuberculosis Medication, Together With Efavirenz, Ritonavir-Boosted Lopinavir, or Rifampin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tuberculosis"
      ],
      "interventions": [
        {
          "name": "PA-824",
          "type": "DRUG"
        },
        {
          "name": "Efavirenz (EFV)",
          "type": "DRUG"
        },
        {
          "name": "Lopinavir/Ritonavir (LPV/r)",
          "type": "DRUG"
        },
        {
          "name": "Rifampin (RIF)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "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": "2012-05",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2021-11-05",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • Baltimore, Maryland • Columbus, Ohio + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01571414"
    },
    {
      "nct_id": "NCT00023218",
      "title": "Effect of a Change in HIV Therapy on Liver Steatosis, Inflammation, and Fibrosis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections",
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Lopinavir/Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Efavirenz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 0,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-03-09",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 3,
      "location_summary": "Honolulu, Hawaii • Tripler AMC, Hawaii • New York, New York",
      "locations": [
        {
          "city": "Honolulu",
          "state": "Hawaii"
        },
        {
          "city": "Tripler AMC",
          "state": "Hawaii"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00023218"
    },
    {
      "nct_id": "NCT00039741",
      "title": "Anti-HIV Drug Regimens and Treatment-Switching Guidelines in HIV Infected Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "NRTIs (ABC, FTC, FTC/TDF, 3TC, 3TC/AZT, d4T, TDF, ddC, AZT)",
          "type": "DRUG"
        },
        {
          "name": "NNRTIs (EFV, NVP)",
          "type": "DRUG"
        },
        {
          "name": "PIs (AMP, IDV, LPV/r, NFV, SQV, RTV)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Days",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "30 Days to 18 Years"
      },
      "enrollment_count": 266,
      "start_date": "2002-08",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2021-11-05",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 29,
      "location_summary": "Alhambra, California • Long Beach, California • Los Angeles, California + 22 more",
      "locations": [
        {
          "city": "Alhambra",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00039741"
    },
    {
      "nct_id": "NCT00162227",
      "title": "An Expanded Access Study of Oral Liquid Efavirenz in the Treatment of Children With HIV Infection",
      "overall_status": "NO_LONGER_AVAILABLE",
      "study_type": "EXPANDED_ACCESS",
      "phases": [],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "Efavirenz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "3 Years to 16 Years"
      },
      "enrollment_count": null,
      "start_date": "2000-09",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2014-01-09",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 27,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Washington D.C., District of Columbia + 19 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00162227"
    },
    {
      "nct_id": "NCT00863668",
      "title": "Raltegravir Activity In Lymphoid Tissues",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infection",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Efavirenz + Tenofovir DF/Emtricitabine",
          "type": "DRUG"
        },
        {
          "name": "Raltegravir + Tenofovir DF/Emtricitabine",
          "type": "DRUG"
        },
        {
          "name": "Colonoscopy with biopsies",
          "type": "PROCEDURE"
        },
        {
          "name": "Inguinal Lymph Node Excision",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2009-03",
      "completion_date": "2011-03",
      "has_results": false,
      "last_update_posted_date": "2015-05-18",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00863668"
    },
    {
      "nct_id": "NCT00112047",
      "title": "Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Emtricitabine (FTC)",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir Disoproxil Fumarate (TDF)",
          "type": "DRUG"
        },
        {
          "name": "Efavirenz (EFV)",
          "type": "DRUG"
        },
        {
          "name": "FTC/TDF",
          "type": "DRUG"
        },
        {
          "name": "FTC/TDF/EFV",
          "type": "DRUG"
        },
        {
          "name": "Lamivudine/zidovudine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 517,
      "start_date": "2003-07",
      "completion_date": "2009-06",
      "has_results": true,
      "last_update_posted_date": "2010-10-13",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 5,
      "location_summary": "Beverly Hills, California • Washington D.C., District of Columbia • Orlando, Florida + 2 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Huntersville",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00112047"
    },
    {
      "nct_id": "NCT00116116",
      "title": "DART II - A Phase IV Study of 3 Antiretroviral Medicines in Combination, in HIV Patients Who Have Not Been Previously Treated With Antiretroviral Therapy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infections",
        "AIDS"
      ],
      "interventions": [
        {
          "name": "efavirenz, stavudine extended release, lamivudine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2002-03",
      "completion_date": "2005-06",
      "has_results": false,
      "last_update_posted_date": "2011-04-26",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 10,
      "location_summary": "Bakersfield, California • San Francisco, California • Washington D.C., District of Columbia + 7 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00116116"
    },
    {
      "nct_id": "NCT02285114",
      "title": "Study To Evaluate Emtricitabine/Tenofovir Alafenamide (F/TAF) in Human Immunodeficiency Virus 1 (HIV-1) Infected Children and Adolescents Virologically Suppressed on a 2-Nucleoside/Nucleotide Reverse Transcriptase Inhibitor (2-NRTI)-Containing Regimen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "HIV-1"
      ],
      "interventions": [
        {
          "name": "F/TAF",
          "type": "DRUG"
        },
        {
          "name": "3rd ARV agent",
          "type": "DRUG"
        },
        {
          "name": "Boosted PIs",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Month",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Month to 17 Years"
      },
      "enrollment_count": 41,
      "start_date": "2015-01-20",
      "completion_date": "2024-12-11",
      "has_results": true,
      "last_update_posted_date": "2025-06-27",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • Aurora, Colorado • Philadelphia, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02285114"
    },
    {
      "nct_id": "NCT00001086",
      "title": "A Study of Abacavir Plus Indinavir Sulfate Plus Efavirenz in HIV-Infected Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Indinavir sulfate",
          "type": "DRUG"
        },
        {
          "name": "Abacavir sulfate",
          "type": "DRUG"
        },
        {
          "name": "Efavirenz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 300,
      "start_date": null,
      "completion_date": "1999-09",
      "has_results": false,
      "last_update_posted_date": "2021-11-01",
      "last_synced_at": "2026-09-03T11:26:49.896Z",
      "location_count": 55,
      "location_summary": "Los Angeles, California • San Francisco, California • Stanford, California + 32 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001086"
    }
  ]
}