{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=TDF+Placebo",
    "query": {
      "intervention": "TDF Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 115,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=TDF+Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T02:56:49.174Z",
  "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": "NCT01421368",
      "title": "Contraception and Menstrual Cycle Effect on Pharmacokinetics, Pharmacodynamics and Safety in Tenofovir Vaginal Gel Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Prevention"
      ],
      "interventions": [
        {
          "name": "Tenofovir 1% vaginal gel",
          "type": "DRUG"
        },
        {
          "name": "Depo-medroxyprogesterone acetate (DMPA)",
          "type": "DRUG"
        },
        {
          "name": "Oral contraceptive: LNG 150 mcg and EE 30 mcg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "CONRAD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 72,
      "start_date": "2012-03",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2015-04-10",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 2,
      "location_summary": "Pittsburgh, Pennsylvania • Norfolk, Virginia",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01421368"
    },
    {
      "nct_id": "NCT02932150",
      "title": "Study of Tenofovir Alafenamide (TAF) in Children and Teen Participants With Chronic Hepatitis B Virus Infection",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 150,
      "start_date": "2016-11",
      "completion_date": "2029-10",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 15,
      "location_summary": "Los Angeles, California • San Diego, California • San Francisco, California + 12 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02932150"
    },
    {
      "nct_id": "NCT01095796",
      "title": "Study to Evaluate the Safety and Efficacy of Stribild Versus Atripla in Human Immunodeficiency Virus, Type 1 (HIV-1) Infected, Antiretroviral Treatment-Naive Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Stribild",
          "type": "DRUG"
        },
        {
          "name": "Atripla",
          "type": "DRUG"
        },
        {
          "name": "Stribild Placebo",
          "type": "DRUG"
        },
        {
          "name": "Atripla Placebo",
          "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": 707,
      "start_date": "2010-03",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2015-11-11",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 97,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 63 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Hayward",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01095796"
    },
    {
      "nct_id": "NCT01940471",
      "title": "Study to Compare Tenofovir Alafenamide (TAF) Versus Tenofovir Disoproxil Fumarate (TDF) in Participants With Chronic Hepatitis B Infection Who Are Positive for Hepatitis B e Antigen",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HBeAg-positive Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "TAF",
          "type": "DRUG"
        },
        {
          "name": "TDF",
          "type": "DRUG"
        },
        {
          "name": "TAF Placebo",
          "type": "DRUG"
        },
        {
          "name": "TDF Placebo",
          "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": 875,
      "start_date": "2013-09-11",
      "completion_date": "2022-10-13",
      "has_results": true,
      "last_update_posted_date": "2023-10-10",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 15,
      "location_summary": "Los Angeles, California • Palo Alto, California • Pasadena, California + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Jose",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01940471"
    },
    {
      "nct_id": "NCT00002396",
      "title": "The Safety and Effectiveness of PMPA Prodrug in HIV-Infected Patients",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Tenofovir disoproxil fumarate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 60,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 3,
      "location_summary": "San Francisco, California • Baltimore, Maryland • Seattle, Washington",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002396"
    },
    {
      "nct_id": "NCT02607956",
      "title": "Study to Evaluate the Safety and Efficacy of Bictegravir/Emtricitabine/Tenofovir Alafenamide Versus Dolutegravir + Emtricitabine/Tenofovir Alafenamide in Human Immunodeficiency Virus (HIV-1) Infected, Antiretroviral Treatment-Naive Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "DTG",
          "type": "DRUG"
        },
        {
          "name": "F/TAF",
          "type": "DRUG"
        },
        {
          "name": "B/F/TAF",
          "type": "DRUG"
        },
        {
          "name": "DTG Placebo",
          "type": "DRUG"
        },
        {
          "name": "F/TAF Placebo",
          "type": "DRUG"
        },
        {
          "name": "B/F/TAF Placebo",
          "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": 657,
      "start_date": "2015-11-11",
      "completion_date": "2021-07-05",
      "has_results": true,
      "last_update_posted_date": "2022-03-07",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 74,
      "location_summary": "Phoenix, Arizona • Beverly Hills, California • Los Angeles, California + 53 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02607956"
    },
    {
      "nct_id": "NCT01106586",
      "title": "Study to Evaluate the Safety and Efficacy of Stribild Versus Ritonavir-Boosted Atazanavir Plus Truvada in Human Immunodeficiency Virus, Type 1 (HIV-1) Infected, Antiretroviral Treatment-Naive Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Stribild",
          "type": "DRUG"
        },
        {
          "name": "ATV",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "FTC/TDF",
          "type": "DRUG"
        },
        {
          "name": "Stribild Placebo",
          "type": "DRUG"
        },
        {
          "name": "ATV Placebo",
          "type": "DRUG"
        },
        {
          "name": "RTV Placebo",
          "type": "DRUG"
        },
        {
          "name": "FTC/TDF Placebo",
          "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": 708,
      "start_date": "2010-04",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2015-11-11",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 86,
      "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 57 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Costa Mesa",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01106586"
    },
    {
      "nct_id": "NCT01967940",
      "title": "Efficacy of Tenofovir Alafenamide Versus Placebo Added to a Failing Regimen Followed by Treatment With Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide Plus Atazanavir in HIV-1 Positive, Antiretroviral Treatment-Experienced Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV",
        "HIV Infections",
        "Acquired Immunodeficiency Syndrome"
      ],
      "interventions": [
        {
          "name": "TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "E/C/F/TAF",
          "type": "DRUG"
        },
        {
          "name": "Current failing ARV regimen",
          "type": "DRUG"
        },
        {
          "name": "ATV",
          "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": 55,
      "start_date": "2013-10-25",
      "completion_date": "2017-07-31",
      "has_results": true,
      "last_update_posted_date": "2018-11-16",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 5,
      "location_summary": "Ft. Pierce, Florida • West Palm Beach, Florida • Wilton Manors, Florida + 2 more",
      "locations": [
        {
          "city": "Ft. Pierce",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Wilton Manors",
          "state": "Florida"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01967940"
    },
    {
      "nct_id": "NCT02556268",
      "title": "Interaction With HIV Antiretroviral Agents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV-DDI"
      ],
      "interventions": [
        {
          "name": "Riociguat (Adempas, BAY 63-2521)",
          "type": "DRUG"
        },
        {
          "name": "ATRIPLA",
          "type": "DRUG"
        },
        {
          "name": "COMPLERA",
          "type": "DRUG"
        },
        {
          "name": "STRIBILD",
          "type": "DRUG"
        },
        {
          "name": "TRIUMEQ",
          "type": "DRUG"
        },
        {
          "name": "Antiretroviral protease inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2016-02-23",
      "completion_date": "2016-12-07",
      "has_results": false,
      "last_update_posted_date": "2017-12-06",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 2,
      "location_summary": "Orlando, Florida • Boston, Massachusetts",
      "locations": [
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02556268"
    },
    {
      "nct_id": "NCT06274398",
      "title": "Rectal Insert TAF/EVG Pre-Exposure Prophylaxis (RITE PrEP) Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Safety Issues"
      ],
      "interventions": [
        {
          "name": "TAF/EVG rectal insert",
          "type": "DRUG"
        },
        {
          "name": "Matching placebo rectal insert",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eastern Virginia Medical School",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 21,
      "start_date": "2024-01-16",
      "completion_date": "2025-05-16",
      "has_results": false,
      "last_update_posted_date": "2025-07-25",
      "last_synced_at": "2026-09-06T02:56:49.174Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06274398"
    }
  ]
}