{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+B+Vaccination&page=3",
    "query": {
      "intervention": "Hepatitis B Vaccination",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 49,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+B+Vaccination&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+B+Vaccination&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T04:34:15.415Z",
  "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": "NCT01182311",
      "title": "Duration of Long-term Immunity After Hepatitis B Virus Immunization",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hepatitis B"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 205,
      "start_date": "2010-09-08",
      "completion_date": "2020-12-09",
      "has_results": false,
      "last_update_posted_date": "2020-12-11",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01182311"
    },
    {
      "nct_id": "NCT01000974",
      "title": "Consistency & Immunogenicity Study of 3 Lots of GSK's Hib Conjugate Vaccine Versus ActHIB & Pentacel in Healthy Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Haemophilus Influenzae Type b"
      ],
      "interventions": [
        {
          "name": "GSK Biologicals' Haemophilus influenzae type b vaccine (GSK 208108)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "ActHIB™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pentacel™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pediarix™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Rotarix™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Engerix™-B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Infanrix™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Weeks",
        "maximum_age": "12 Weeks",
        "sex": "ALL",
        "summary": "6 Weeks to 12 Weeks"
      },
      "enrollment_count": 4003,
      "start_date": "2010-06-18",
      "completion_date": "2013-07-17",
      "has_results": true,
      "last_update_posted_date": "2018-07-12",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 63,
      "location_summary": "Dothan, Alabama • Benton, Arkansas • Fayetteville, Arkansas + 59 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Benton",
          "state": "Arkansas"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01000974"
    },
    {
      "nct_id": "NCT00142753",
      "title": "Immunologic Memory (Supp. of ATN 024)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Engerix B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Twinrix for ATN 024",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Recombivax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Twinrix for ATN 025",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "12 Years to 25 Years"
      },
      "enrollment_count": 95,
      "start_date": "2005-08",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2017-02-28",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 4,
      "location_summary": "Los Angeles, California • San Franciso, California • Washington D.C., District of Columbia + 1 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Franciso",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00142753"
    },
    {
      "nct_id": "NCT01311674",
      "title": "Hepatitis B Virus Antibody Booster Program for the Production of Hepatitis B Immune Globulin (HBIG)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "hepatitis B vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emergent BioSolutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 141,
      "start_date": "2009-09",
      "completion_date": "2011-03-11",
      "has_results": true,
      "last_update_posted_date": "2024-03-18",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 2,
      "location_summary": "Altamonte Springs, Florida • Frederick, Maryland",
      "locations": [
        {
          "city": "Altamonte Springs",
          "state": "Florida"
        },
        {
          "city": "Frederick",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01311674"
    },
    {
      "nct_id": "NCT01339000",
      "title": "Improving the Immune System With Human IL-7 Vaccine in Older Subjects Who Have Had Chemotherapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Colon Cancer",
        "Bladder Cancer"
      ],
      "interventions": [
        {
          "name": "Glycosylated Recombinant Human Interleukin-7",
          "type": "DRUG"
        },
        {
          "name": "Diphtheria/Tetanus Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Polio Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pneumococcal Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hepatitis A Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hepatitis B Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "60 Years to 100 Years"
      },
      "enrollment_count": 1,
      "start_date": "2011-04",
      "completion_date": "2016-04",
      "has_results": true,
      "last_update_posted_date": "2016-06-22",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 2,
      "location_summary": "Bethesda, Maryland • New York, New York",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01339000"
    },
    {
      "nct_id": "NCT03408730",
      "title": "Lot-to-lot Consistency of Sci-B-Vac™ in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis B Vaccines"
      ],
      "interventions": [
        {
          "name": "Hepatitis B Vaccination",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "VBI Vaccines Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 2838,
      "start_date": "2017-12-14",
      "completion_date": "2019-10-01",
      "has_results": true,
      "last_update_posted_date": "2021-03-25",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Tempe, Arizona • Anaheim, California + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "North Hollywood",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03408730"
    },
    {
      "nct_id": "NCT01146808",
      "title": "Adefovir Plus Vaccination in Transplant Patients Without Hepatitis B That Receive a Core Antibody Positive Liver",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis B",
        "Liver Transplantation"
      ],
      "interventions": [
        {
          "name": "Adefovir dipivoxil and hepatitis B vaccination",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2006-03",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2021-08-10",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01146808"
    },
    {
      "nct_id": "NCT02055365",
      "title": "Pilot Study: Gene Expression Profiling of Immune Response to HBV Vaccination in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatitis B"
      ],
      "interventions": [
        {
          "name": "Hepatitis B Vaccine (Recombinant)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 10,
      "start_date": "2014-02-18",
      "completion_date": "2015-01-06",
      "has_results": true,
      "last_update_posted_date": "2018-05-07",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02055365"
    },
    {
      "nct_id": "NCT03530124",
      "title": "Apnea in Hospitalized Preterm Infants Following the Administration of Routine Childhood Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Apnea",
        "Apnea Neonatal",
        "Prematurity"
      ],
      "interventions": [
        {
          "name": "PCV13",
          "type": "BIOLOGICAL"
        },
        {
          "name": "DTaP",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HBV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "IPV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hib",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Weeks",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Weeks and older"
      },
      "enrollment_count": 223,
      "start_date": "2018-07-17",
      "completion_date": "2021-11-01",
      "has_results": true,
      "last_update_posted_date": "2024-02-14",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 4,
      "location_summary": "Atlanta, Georgia • Chapel Hill, North Carolina • Durham, North Carolina + 1 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03530124"
    },
    {
      "nct_id": "NCT04054752",
      "title": "Vaccine Response With NT-I7",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Breast Carcinoma",
        "Colorectal Adenocarcinoma",
        "Bladder Carcinoma"
      ],
      "interventions": [
        {
          "name": "Recombinant human IL-7-hyFc (NT-I7)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine sequence 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine sequence 2",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2023-05-30",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2023-11-02",
      "last_synced_at": "2026-10-06T04:34:15.415Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04054752"
    }
  ]
}