{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+A%2FH9N2+vaccine",
    "query": {
      "intervention": "Influenza A/H9N2 vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-05T03:10:43.464Z",
  "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": "NCT01674205",
      "title": "Study of Immune Responses in Healthy Adults Receiving Live Influenza Virus Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "A/swine/Missouri/4296424/2006 (H2N3) x A/Ann Arbor/6/60 ca (H2N3 MO 2006/AA ca)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "A/chicken/Hong Kong/G9/97 (H9N2) x A/Ann Arbor/6/60 ca (H9N2 G9/AA ca)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "2012-2013 trivalent seasonal live attenuated influenza vaccine (FluMist®)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine placebo (Leibovitz-15 [L-15])",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Vaccine placebo (FluMist®)",
          "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": "42 Years",
        "sex": "ALL",
        "summary": "18 Years to 42 Years"
      },
      "enrollment_count": 36,
      "start_date": "2012-09",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2015-12-15",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01674205"
    },
    {
      "nct_id": "NCT00133471",
      "title": "Inactivated Influenza A/H9N2 Vaccine With and Without MF59 Adjuvant in Ambulatory Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza A/H9N2 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MF59 adjuvant",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "18 Years to 34 Years"
      },
      "enrollment_count": 96,
      "start_date": "2005-03",
      "completion_date": "2005-12",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00133471"
    },
    {
      "nct_id": "NCT01320696",
      "title": "Reverse Genetic H9N2 Influenza Vaccine Study in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Reverse Genetic (RG) reassortant A/H9N2 influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Alachua Government Services, Inc.",
      "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": 353,
      "start_date": "2011-03",
      "completion_date": "2012-05",
      "has_results": true,
      "last_update_posted_date": "2023-02-16",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 5,
      "location_summary": "Huntsville, Alabama • Melbourne, Florida • Peoria, Illinois + 2 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Melbourne",
          "state": "Florida"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        },
        {
          "city": "South Bend",
          "state": "Indiana"
        },
        {
          "city": "Rockville",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01320696"
    },
    {
      "nct_id": "NCT02415842",
      "title": "A Laboratory Evaluation of the Humoral Immune Response in Adults and Children to the H1 Hemagglutinin (HA) Stalk Domain and Other Influenza A Virus Protein Epitopes, After Administration of GlaxoSmithKline (GSK) Biologicals' Pandemic Influenza Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunologic Tests"
      ],
      "interventions": [
        {
          "name": "Serum samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "6 Months to 64 Years"
      },
      "enrollment_count": 414,
      "start_date": "2015-10-26",
      "completion_date": "2018-02-16",
      "has_results": true,
      "last_update_posted_date": "2019-07-23",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02415842"
    },
    {
      "nct_id": "NCT00380237",
      "title": "Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study B)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Virus Diseases"
      ],
      "interventions": [
        {
          "name": "H9N2 (6-2) AA ca Reassortant (A/Chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)",
          "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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2006-10",
      "completion_date": "2007-01",
      "has_results": false,
      "last_update_posted_date": "2008-01-21",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00380237"
    },
    {
      "nct_id": "NCT01659086",
      "title": "Study to Evaluate the Safety and Immunogenicity of GlaxoSmithKline (GSK) Biologicals' Influenza Vaccines GSK2654911A and GSK2654909A Administered to Adults 18 to 64 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Investigational H9N2 vaccine GSK2654911A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational H9N2 vaccine GSK2654909A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "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": 422,
      "start_date": "2012-08-22",
      "completion_date": "2014-03-19",
      "has_results": false,
      "last_update_posted_date": "2018-06-18",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 3,
      "location_summary": "Miami, Florida • Edison, New Jersey • Austin, Texas",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Edison",
          "state": "New Jersey"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01659086"
    },
    {
      "nct_id": "NCT00110279",
      "title": "Safety of and Immune Response to a Bird Flu Virus Vaccine (H9N2) in Healthy Adults (Study A)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Virus Diseases"
      ],
      "interventions": [
        {
          "name": "H9N2 (6-2) AA ca Reassortant (A/chicken/Hong Kong/G9/97 x A/Ann Arbor/6/60 ca)",
          "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": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2005-06",
      "completion_date": "2005-09",
      "has_results": false,
      "last_update_posted_date": "2008-01-21",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00110279"
    },
    {
      "nct_id": "NCT03816878",
      "title": "Immunogenicity and Safety Study of Inactivated Subunit H5N1 Influenza Vaccine in Prior Recipients of Live Attenuated H2N2, H6N1 and H9N2 Influenza Vaccines and in H5N1 and Live Attenuated Vaccine Naïve Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "H5N1 pISV",
          "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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 32,
      "start_date": "2019-01-08",
      "completion_date": "2020-03-17",
      "has_results": true,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03816878"
    },
    {
      "nct_id": "NCT00617331",
      "title": "H9 Priming Study in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Subvirion inactivated influenza A/H9N2 (G9 variant) vaccine",
          "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": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 121,
      "start_date": "2008-02",
      "completion_date": "2009-01",
      "has_results": false,
      "last_update_posted_date": "2011-07-22",
      "last_synced_at": "2026-10-05T03:10:43.464Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00617331"
    }
  ]
}