{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Entecavir+%2B+Tenofovir",
    "query": {
      "intervention": "Entecavir + Tenofovir"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 23,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Entecavir+%2B+Tenofovir&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T13:02:41.970Z",
  "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": "NCT00662545",
      "title": "Entecavir Intensification for Persistent HBV Viremia in HIV-HBV Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infections",
        "Hepatitis B"
      ],
      "interventions": [
        {
          "name": "Entecavir with continued standard of care antiretroviral therapy",
          "type": "DRUG"
        },
        {
          "name": "continued standard of care with tenofovir in addition to emtricitabine or lamivudine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2008-04",
      "completion_date": "2010-05",
      "has_results": true,
      "last_update_posted_date": "2013-05-27",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00662545"
    },
    {
      "nct_id": "NCT02452528",
      "title": "Study of ARC-520 in Participants With Hepatitis B Virus e Antigen (HBeAg) Positive Chronic Hepatitis B Virus",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "ARC-520",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Entecavir",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir",
          "type": "DRUG"
        },
        {
          "name": "diphenhydramine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Arrowhead Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 4,
      "start_date": "2015-08",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2025-11-03",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 4,
      "location_summary": "San Francisco, California • Miami, Florida • New York, New York + 1 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02452528"
    },
    {
      "nct_id": "NCT03489239",
      "title": "Entecavir to TAF Switch",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis B"
      ],
      "interventions": [
        {
          "name": "Tenofovir Alafenamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 27,
      "start_date": "2017-11-16",
      "completion_date": "2020-09-16",
      "has_results": false,
      "last_update_posted_date": "2020-06-25",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03489239"
    },
    {
      "nct_id": "NCT02167113",
      "title": "Collection of Samples for the Clinical Evaluation of the Aptima HBV (Hepatitis B Virus) Quant (Quantification) Assay",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hepatitis B, Chronic"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Hologic, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 331,
      "start_date": "2014-03",
      "completion_date": "2018-01-23",
      "has_results": false,
      "last_update_posted_date": "2018-08-01",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 38,
      "location_summary": "Phoenix, Arizona • Garden Grove, California • Lancaster, California + 32 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02167113"
    },
    {
      "nct_id": "NCT04585789",
      "title": "A Study to Assess Intrahepatic and Peripheral Changes of Immunologic and Virologic Markers in Chronic Hepatitis B Virus Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis B"
      ],
      "interventions": [
        {
          "name": "JNJ-73763989",
          "type": "DRUG"
        },
        {
          "name": "JNJ-56136379",
          "type": "DRUG"
        },
        {
          "name": "Entecavir (ETV)",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir disoproxil",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir alafenamide (TAF)",
          "type": "DRUG"
        },
        {
          "name": "PegIFN-alpha-2a (Optional)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "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": 24,
      "start_date": "2021-03-11",
      "completion_date": "2024-01-09",
      "has_results": true,
      "last_update_posted_date": "2025-05-21",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04585789"
    },
    {
      "nct_id": "NCT04454567",
      "title": "A Study Evaluating Treatment Intensification With ABI-H0731 in Participants With Chronic Hepatitis B Infection on Nucleos(t)Ide Reverse Transcriptase Inhibitors",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "ABI-H0731",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "NrtI",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Assembly Biosciences",
      "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": 2,
      "start_date": "2020-11-11",
      "completion_date": "2021-04-08",
      "has_results": true,
      "last_update_posted_date": "2022-10-20",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 9,
      "location_summary": "Los Angeles, California • Pasadena, California • San Diego, California + 6 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04454567"
    },
    {
      "nct_id": "NCT04535544",
      "title": "A Study of JNJ-73763989 + Nucleos(t)Ide Analog in Participants Co-Infected With Hepatitis B and Hepatitis D Virus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis D, Chronic"
      ],
      "interventions": [
        {
          "name": "JNJ-73763989",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Entecavir (ETV) monohydrate",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir disoproxil",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir alafenamide (TAF)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Janssen Research & Development, LLC",
      "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": 52,
      "start_date": "2020-09-17",
      "completion_date": "2025-03-05",
      "has_results": true,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 2,
      "location_summary": "Redwood City, California • Boston, Massachusetts",
      "locations": [
        {
          "city": "Redwood City",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04535544"
    },
    {
      "nct_id": "NCT00605384",
      "title": "A Phase IIIb Study to Compare Entecavir Plus Tenofovir vs. Adefovir Added to Continuing Lamivudine Therapy in Adult Patients With Lamivudine-Resistant Hepatitis B Infection",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Hepatitis B"
      ],
      "interventions": [
        {
          "name": "Entecavir + Tenofovir",
          "type": "DRUG"
        },
        {
          "name": "Adefovir + continuing 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": 4,
      "start_date": "2008-08",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2010-11-23",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • San Francisco, California • Chicago, Illinois + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00605384"
    },
    {
      "nct_id": "NCT00410202",
      "title": "Entecavir Plus Adefovir Combination Therapy Versus Entecavir Monotherapy vs Therapy With Adefovir Plus Lamivudine for Chronic Hepatitis B Infected Subjects With Lamivudine-resistant Virus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis B, Chronic"
      ],
      "interventions": [
        {
          "name": "Entecavir",
          "type": "DRUG"
        },
        {
          "name": "Tenofovir",
          "type": "DRUG"
        },
        {
          "name": "Adefovir",
          "type": "DRUG"
        },
        {
          "name": "Lamivudine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 629,
      "start_date": "2008-03",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2013-11-21",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00410202"
    },
    {
      "nct_id": "NCT01943799",
      "title": "Safety and Efficacy of GS-4774 for the Treatment of Chronic Hepatitis B",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic HBV Infection"
      ],
      "interventions": [
        {
          "name": "GS-4774",
          "type": "BIOLOGICAL"
        },
        {
          "name": "OAV Regimen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "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": 178,
      "start_date": "2013-09-13",
      "completion_date": "2015-03-03",
      "has_results": true,
      "last_update_posted_date": "2019-11-01",
      "last_synced_at": "2026-09-25T13:02:41.970Z",
      "location_count": 16,
      "location_summary": "Los Angeles, California • Pasadena, California • Sacramento, California + 13 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Pasadena",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01943799"
    }
  ]
}