{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine+2&page=23",
    "query": {
      "intervention": "Influenza Vaccine 2",
      "page": 23
    },
    "page_size": 10
  },
  "pagination": {
    "page": 23,
    "page_size": 10,
    "total_count": 575,
    "total_pages": 58,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine+2&page=24&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Vaccine+2&page=22&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T13:35:37.952Z",
  "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": "NCT07192458",
      "title": "High vs. Standard Dose Influenza Vaccines in Lung Transplant (Repeater)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Immunization; Infection|Transplantation Infection|Influenza",
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone High Dose Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone Standard Dose Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2025-09-17",
      "completion_date": "2029-12",
      "has_results": false,
      "last_update_posted_date": "2025-10-07",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07192458"
    },
    {
      "nct_id": "NCT03308825",
      "title": "Safety and Immunogenicity of Fluzone® Quadrivalent and Fluzone® High-Dose, Influenza Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza",
        "Flu"
      ],
      "interventions": [
        {
          "name": "Fluzone Quadrivalent vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone High-Dose vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 240,
      "start_date": "2017-09-11",
      "completion_date": "2017-11-22",
      "has_results": true,
      "last_update_posted_date": "2022-03-29",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 3,
      "location_summary": "Council Bluffs, Iowa • Bardstown, Kentucky • Metairie, Louisiana",
      "locations": [
        {
          "city": "Council Bluffs",
          "state": "Iowa"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03308825"
    },
    {
      "nct_id": "NCT01335347",
      "title": "Safety Study of an Oral Vaccine to Prevent Avian Influenza",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Avian Influenza",
        "Bird Flu"
      ],
      "interventions": [
        {
          "name": "ND1.1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo control",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vaxart",
      "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": 54,
      "start_date": "2011-04",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2013-01-03",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01335347"
    },
    {
      "nct_id": "NCT02434276",
      "title": "Study of the Immunogenicity and Safety of a Quadrivalent Influenza Vaccine (VAX2012Q) in Adults 18-64 Years",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "VAX2012Q",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone Quadrivalent",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "VaxInnate Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 450,
      "start_date": "2015-05",
      "completion_date": "2016-06",
      "has_results": false,
      "last_update_posted_date": "2015-06-26",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 6,
      "location_summary": "Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "Mishawaka",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02434276"
    },
    {
      "nct_id": "NCT00253734",
      "title": "Immunogenicity and Safety of Different Doses of Fluzone® Influenza",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone® (IM)",
          "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": 217,
      "start_date": "2005-11",
      "completion_date": "2006-11",
      "has_results": false,
      "last_update_posted_date": "2013-06-03",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00253734"
    },
    {
      "nct_id": "NCT00614614",
      "title": "Immuno,Safety of GSK Vaccine 134612 Given at Age of 12-15 Months 15-18 Months Post-priming With GSK Vaccine 792014",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Infections, Meningococcal"
      ],
      "interventions": [
        {
          "name": "GSK Biologicals' Meningococcal vaccine GSK134612 (Nimenrix)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK Biologicals' Hib-meningococcal vaccine GSK 792014 (Menhibrix)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Infanrix®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "ActHIB®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pediarix®",
          "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": 1558,
      "start_date": "2008-02-13",
      "completion_date": "2009-09-17",
      "has_results": true,
      "last_update_posted_date": "2018-09-21",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 56,
      "location_summary": "Birmingham, Alabama • Dothan, Alabama • Benton, Arkansas + 50 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Benton",
          "state": "Arkansas"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00614614"
    },
    {
      "nct_id": "NCT06067555",
      "title": "Intradermal Influenza Vaccination",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Vaccine Reaction"
      ],
      "interventions": [
        {
          "name": "MicronJet",
          "type": "DEVICE"
        },
        {
          "name": "Fluzone® Quadrivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Bacteriostatic Saline",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 249,
      "start_date": "2024-01-24",
      "completion_date": "2026-05",
      "has_results": false,
      "last_update_posted_date": "2025-06-19",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06067555"
    },
    {
      "nct_id": "NCT01946438",
      "title": "Study of Fluzone® Quadrivalent, Fluzone® Intradermal, and Fluzone® High-Dose Influenza Virus Vaccines in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone® Quadrivalent, Influenza Virus Vaccine (2013-2014 formulation),",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® Intradermal, Influenza Virus Vaccine (2013-2014 formulation),",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® High-Dose, Influenza Virus Vaccine (2013-2014 formulation)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 208,
      "start_date": "2013-09",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2014-09-25",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 4,
      "location_summary": "Santa Rosa, California • Council Bluffs, Iowa • Metairie, Louisiana + 1 more",
      "locations": [
        {
          "city": "Santa Rosa",
          "state": "California"
        },
        {
          "city": "Council Bluffs",
          "state": "Iowa"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01946438"
    },
    {
      "nct_id": "NCT00570037",
      "title": "Feasibility of Cocooning Immunization Strategy With Influenza Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Trivalent inactivated influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 544,
      "start_date": "2007-10",
      "completion_date": "2008-04",
      "has_results": true,
      "last_update_posted_date": "2013-06-24",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00570037"
    },
    {
      "nct_id": "NCT00944073",
      "title": "Peds Sanofi H1N1 Influenza Vaccine Administered at Two Dose Levels",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Vaccine, Monovalent A/H1N1 A/California/7/2009 NYMC X-179A",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Months to 17 Years"
      },
      "enrollment_count": 583,
      "start_date": "2009-08",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2015-02-18",
      "last_synced_at": "2026-10-16T13:35:37.952Z",
      "location_count": 9,
      "location_summary": "Baltimore, Maryland • Kansas City, Missouri • St Louis, Missouri + 6 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00944073"
    }
  ]
}