{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=6",
    "query": {
      "intervention": "Hepatitis A Vaccine",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 136,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Hepatitis+A+Vaccine&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T02:47:46.280Z",
  "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": "NCT03620162",
      "title": "A Study to Evaluate the Interchangeability of V114 and Prevnar 13™ in Healthy Infants (V114-027/PNEU-DIRECTION)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Infections"
      ],
      "interventions": [
        {
          "name": "Prevnar 13™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "V114",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RotaTeq™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pentacel™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RECOMBIVAX HB™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HIBERIX™",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R™ II",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VARIVAX™",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "42 Days",
        "maximum_age": "90 Days",
        "sex": "ALL",
        "summary": "42 Days to 90 Days"
      },
      "enrollment_count": 900,
      "start_date": "2018-10-18",
      "completion_date": "2020-12-14",
      "has_results": true,
      "last_update_posted_date": "2023-01-17",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 22,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Jonesboro, Arkansas + 16 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03620162"
    },
    {
      "nct_id": "NCT00841477",
      "title": "An Hepatitis B Vaccine Model for HIV Vaccine Trials in Drug Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hepatitis B Infection",
        "Hepatitis C Infection",
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "hepatitis B vaccine 3 dose schedule (0,1,2 month)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "HBV Vaccination Self-Efficacy Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "BEHAVIORAL"
      ],
      "sponsor": "National Institute on Drug Abuse (NIDA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1260,
      "start_date": "2004-01",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2017-01-11",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00841477"
    },
    {
      "nct_id": "NCT00799825",
      "title": "Safety Study of GSK Biologicals' Human Papillomavirus Vaccine in 580299/008 Subjects From Canada or the US",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infections, Papillomavirus"
      ],
      "interventions": [
        {
          "name": "GSK Biological's HPV vaccine GSK580299 (Cervarix™)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 346,
      "start_date": "2009-01-01",
      "completion_date": "2012-08-02",
      "has_results": true,
      "last_update_posted_date": "2018-07-12",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 39,
      "location_summary": "San Diego, California • San Francisco, California • Denver, Colorado + 34 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Louisville",
          "state": "Colorado"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00799825"
    },
    {
      "nct_id": "NCT05084508",
      "title": "A Study on the Immune Response and Safety of Various Potencies of an Investigational Chickenpox Vaccine Compared With a Marketed Chickenpox Vaccine, Given to Healthy Children 12 to 15 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chickenpox"
      ],
      "interventions": [
        {
          "name": "Investigational varicella vaccine low potency",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational varicella vaccine medium potency",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational varicella vaccine high potency",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed varicella vaccine Lot 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed varicella vaccine Lot 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Measles, mumps, and rubella vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Hepatitis A vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "13-valent pneumococcal conjugate vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 800,
      "start_date": "2022-02-03",
      "completion_date": "2024-06-13",
      "has_results": true,
      "last_update_posted_date": "2025-02-28",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 41,
      "location_summary": "Bryant, Arkansas • Jonesboro, Arkansas • Little Rock, Arkansas + 37 more",
      "locations": [
        {
          "city": "Bryant",
          "state": "Arkansas"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Downey",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05084508"
    },
    {
      "nct_id": "NCT00133445",
      "title": "Pentavalent DTaP-Hep B-IPV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Diphtheria",
        "Hepatitis B",
        "Poliomyelitis",
        "Pertussis",
        "Tetanus"
      ],
      "interventions": [
        {
          "name": "DTaP-Hep B-IPV Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Monovalent Hep B Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "5 Days",
        "sex": "ALL",
        "summary": "Up to 5 Days"
      },
      "enrollment_count": 5,
      "start_date": "2005-12",
      "completion_date": "2006-08",
      "has_results": false,
      "last_update_posted_date": "2011-11-07",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 1,
      "location_summary": "Torrance, California",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00133445"
    },
    {
      "nct_id": "NCT03827395",
      "title": "Safety Study of Hepatitis E Vaccine (HEV239)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hepatitis E",
        "Immunisation"
      ],
      "interventions": [
        {
          "name": "HEV 239",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 25,
      "start_date": "2019-04-12",
      "completion_date": "2020-08-28",
      "has_results": true,
      "last_update_posted_date": "2021-09-24",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03827395"
    },
    {
      "nct_id": "NCT00449124",
      "title": "TG4040 in Patients With Chronic HCV",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "TG4040",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": null,
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2019-01-23",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 2,
      "location_summary": "St Louis, Missouri • Cincinnati, Ohio",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00449124"
    },
    {
      "nct_id": "NCT00244374",
      "title": "A Randomized Trial of Vaccine Adherence in Young Injection Drug Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Medication Adherence",
        "Substance Abuse, Intravenous",
        "Risk Behavior",
        "Hepatitis A",
        "Hepatitis B",
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Hepatitis A & B vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Outreach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "AIC",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SEP",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "14 Years to 29 Years"
      },
      "enrollment_count": 546,
      "start_date": "2004-08",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2013-09-30",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00244374"
    },
    {
      "nct_id": "NCT01681992",
      "title": "Immunogenicity and Safety Study of GlaxoSmithKline (GSK) Biologicals' Combined Measles-mumps-rubella (MMR) Vaccine in Children in Their Second Year of Life",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Measles",
        "Mumps",
        "Rubella",
        "Measles-Mumps-Rubella Vaccine"
      ],
      "interventions": [
        {
          "name": "Priorix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "M-M-R II",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Varivax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Havrix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Prevnar 13",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "15 Months",
        "sex": "ALL",
        "summary": "12 Months to 15 Months"
      },
      "enrollment_count": 4538,
      "start_date": "2012-10-10",
      "completion_date": "2015-08-18",
      "has_results": true,
      "last_update_posted_date": "2021-01-07",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 40,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 33 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01681992"
    },
    {
      "nct_id": "NCT01282216",
      "title": "Patient-donor Vaccination in the Context of Allogeneic Bone Marrow Transplant With Post-transplant Cyclophosphamide",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Transplant-Related Cancer"
      ],
      "interventions": [
        {
          "name": "Havrix",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PCV13",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2011-04",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2019-05-30",
      "last_synced_at": "2026-10-10T02:47:46.280Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01282216"
    }
  ]
}