{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluzone+HD+Vaccine",
    "query": {
      "intervention": "Fluzone HD Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 211,
    "total_pages": 22,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluzone+HD+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T03:32:44.983Z",
  "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": "NCT01808456",
      "title": "Standard-dose Versus High-dose Flu Vaccine in Solid Organ Transplant.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza, Human",
        "Transplantation Infection"
      ],
      "interventions": [
        {
          "name": "influenza trivalent inactive vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "influenza trivalent inactive vaccine high dose",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Inova Health Care Services",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 62,
      "start_date": "2013-10",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2022-07-22",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "Falls Church, Virginia",
      "locations": [
        {
          "city": "Falls Church",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01808456"
    },
    {
      "nct_id": "NCT01831934",
      "title": "Responses to Influenza Vaccine in Patients With Mitochondrial Disorders (MELAS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "MELAS Syndrome"
      ],
      "interventions": [
        {
          "name": "Fluzone®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "13 Years to 65 Years"
      },
      "enrollment_count": 22,
      "start_date": "2010-09",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01831934"
    },
    {
      "nct_id": "NCT00138281",
      "title": "Influenza Immunity Against Pandemic Respiratory Virus",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "FluMist",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 60,
      "start_date": null,
      "completion_date": "2006-01",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00138281"
    },
    {
      "nct_id": "NCT02242643",
      "title": "Study to Evaluate the Immunogenicity and Safety of GlaxoSmithKline (GSK) Biologicals' Quadrivalent Influenza Vaccine (GSK2282512A) Compared to Fluzone® Quadrivalent in Children 6 to 35 Months of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "FluLaval™ Quadrivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® Quadrivalent",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "35 Months",
        "sex": "ALL",
        "summary": "6 Months to 35 Months"
      },
      "enrollment_count": 2432,
      "start_date": "2014-10-01",
      "completion_date": "2015-06-23",
      "has_results": true,
      "last_update_posted_date": "2018-09-07",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 64,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Tucson, Arizona + 56 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02242643"
    },
    {
      "nct_id": "NCT01248208",
      "title": "FluMist in Egg Allergic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Egg Allergy",
        "Eligible for Vaccination Against Influenza"
      ],
      "interventions": [
        {
          "name": "FluMist intranasal influenza vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Intramuscular influenza injection (\"flu shot\")",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Walter Reed Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 17,
      "start_date": "2010-09",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2018-10-03",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01248208"
    },
    {
      "nct_id": "NCT00845429",
      "title": "Immunogenicity of a Split, Cell-Based, Inactivated, Trivalent Influenza Vaccine in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza",
        "Orthomyxoviruses",
        "Myxovirus Infection"
      ],
      "interventions": [
        {
          "name": "Influenza virus vaccine - cell-based (2007-2008 Formulation)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Influenza virus vaccine (2007-2008 Formulation)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 729,
      "start_date": "2007-10",
      "completion_date": "2008-11",
      "has_results": true,
      "last_update_posted_date": "2012-12-19",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 15,
      "location_summary": "Hoover, Alabama • Mobile, Alabama • Tucson, Arizona + 12 more",
      "locations": [
        {
          "city": "Hoover",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        },
        {
          "city": "Pinellas Park",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00845429"
    },
    {
      "nct_id": "NCT05091307",
      "title": "A Study of Ad26.COV2.S and Influenza Vaccines in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "COVID-19 Prevention"
      ],
      "interventions": [
        {
          "name": "Ad26.COV2.S",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Janssen Vaccines & Prevention B.V.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 861,
      "start_date": "2021-11-02",
      "completion_date": "2022-11-15",
      "has_results": true,
      "last_update_posted_date": "2025-05-25",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 17,
      "location_summary": "Tempe, Arizona • San Diego, California • Coral Gables, Florida + 12 more",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05091307"
    },
    {
      "nct_id": "NCT03453801",
      "title": "The Role of CD4+ Memory Phenotype, Memory, and Effector T Cells in Vaccination and Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Fluzone®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluMist®",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "10 Years",
        "sex": "ALL",
        "summary": "6 Months to 10 Years"
      },
      "enrollment_count": 80,
      "start_date": "2014-09-30",
      "completion_date": "2019-01-14",
      "has_results": false,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03453801"
    },
    {
      "nct_id": "NCT00115531",
      "title": "Eldery High Dose TIV 2005",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Trivalent inactivated influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 414,
      "start_date": "2005-04",
      "completion_date": "2005-11",
      "has_results": false,
      "last_update_posted_date": "2014-12-19",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 5,
      "location_summary": "Iowa City, Iowa • Baltimore, Maryland • St Louis, Missouri + 2 more",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00115531"
    },
    {
      "nct_id": "NCT02566265",
      "title": "Study of High-dose Influenza Vaccine Efficacy by Repeated Dosing IN Gammopathy Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza",
        "Multiple Myeloma",
        "Waldenstrom's Macroglobulinemia",
        "Plasma Cell Disorders",
        "MGUS"
      ],
      "interventions": [
        {
          "name": "Fluzone High Dose Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Standard of care/Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 122,
      "start_date": "2015-09",
      "completion_date": "2018-06",
      "has_results": true,
      "last_update_posted_date": "2019-01-30",
      "last_synced_at": "2026-09-14T03:32:44.983Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02566265"
    }
  ]
}