{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+vaccine&page=28",
    "query": {
      "intervention": "Influenza vaccine",
      "page": 28
    },
    "page_size": 10
  },
  "pagination": {
    "page": 28,
    "page_size": 10,
    "total_count": 1158,
    "total_pages": 116,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+vaccine&page=29&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+vaccine&page=27&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T18:37:16.237Z",
  "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": "NCT01056354",
      "title": "Respiratory Virus Outpatient Study (FLU 002 Plus)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza and Other Novel Respiratory Viruses"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11719,
      "start_date": "2009-08",
      "completion_date": "2017-05-12",
      "has_results": false,
      "last_update_posted_date": "2017-08-18",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 17,
      "location_summary": "San Diego, California • Denver, Colorado • Washington D.C., District of Columbia + 13 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Pensacola",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01056354"
    },
    {
      "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": "2026-10-15T18:37:16.237Z",
      "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"
    },
    {
      "nct_id": "NCT03870997",
      "title": "Influenza Vaccination Digital Interventions for People Living With Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes"
      ],
      "interventions": [
        {
          "name": "Diabetes Digital Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Generic Digital Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Evidation Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 94321,
      "start_date": "2018-09-12",
      "completion_date": "2019-04-08",
      "has_results": true,
      "last_update_posted_date": "2020-06-09",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "San Mateo, California",
      "locations": [
        {
          "city": "San Mateo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03870997"
    },
    {
      "nct_id": "NCT02222870",
      "title": "Safety and Immunogenicity Among Healthy Children Receiving Fluzone® Quadrivalent, Influenza Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone® Quadrivalent Influenza Vaccine, No Preservative",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "6 Months to 8 Years"
      },
      "enrollment_count": 60,
      "start_date": "2014-08",
      "completion_date": "2015-06",
      "has_results": true,
      "last_update_posted_date": "2015-10-19",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 2,
      "location_summary": "Bardstown, Kentucky • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02222870"
    },
    {
      "nct_id": "NCT05755620",
      "title": "A Study to Evaluate the Safety and Immunogenicity of a Single Dose of H1ssF-3928 mRNA-LNP in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Quadrivalent Inactivated Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sodium Chloride, 0.9%",
          "type": "OTHER"
        },
        {
          "name": "VRC-FLUNPF099-00-VP (H1ssF_3928)",
          "type": "BIOLOGICAL"
        }
      ],
      "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": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 50,
      "start_date": "2023-04-05",
      "completion_date": "2025-10-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05755620"
    },
    {
      "nct_id": "NCT00297050",
      "title": "Safety and Dose Study of Peramivir for Influenza Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Peramivir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 100,
      "start_date": "2006-02-23",
      "completion_date": "2006-11-14",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00297050"
    },
    {
      "nct_id": "NCT01302990",
      "title": "Safety, Tolerability and Immunogenicity of a Plant-Made H1 VLP Influenza Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Flu"
      ],
      "interventions": [
        {
          "name": "Dose given at Day 0",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Medicago",
      "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": 100,
      "start_date": "2011-02",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2013-08-16",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Rockville, Maryland",
      "locations": [
        {
          "city": "Rockville",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01302990"
    },
    {
      "nct_id": "NCT03294473",
      "title": "Centralized Reminder Recall - Flu RCT2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza, Human",
        "Orthomyxoviridae Infections",
        "RNA Virus Infections",
        "Virus Disease",
        "Respiratory Tract Infections",
        "Respiratory Tract Disease",
        "Vaccines",
        "Physiological Effects of Drugs"
      ],
      "interventions": [
        {
          "name": "R/R - Autodialers",
          "type": "BEHAVIORAL"
        },
        {
          "name": "R/R - Texting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "R/R - mailed postcard",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Months to 17 Years"
      },
      "enrollment_count": 70190,
      "start_date": "2017-10-18",
      "completion_date": "2018-05-04",
      "has_results": false,
      "last_update_posted_date": "2019-06-05",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03294473"
    },
    {
      "nct_id": "NCT01591473",
      "title": "Safety Study of FluMist With and Without Ampligen",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "Poly I:Poly C12U 50 ug",
          "type": "DRUG"
        },
        {
          "name": "Poly I:Poly C12U 200 ug",
          "type": "DRUG"
        },
        {
          "name": "Poly I:Poly C12U 500 ug",
          "type": "DRUG"
        },
        {
          "name": "Poly I:Poly C12U 1250 ug",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "FluMist",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AIM ImmunoTech Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "19 Years to 49 Years"
      },
      "enrollment_count": 55,
      "start_date": "2012-04",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2018-07-26",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01591473"
    },
    {
      "nct_id": "NCT01421888",
      "title": "The NIH UNI Study: Urea Cycle Disorders, Nutrition and Immunity",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Argininosuccinic Aciduria",
        "Carbamoyl-Phosphate Synthase I Deficiency",
        "Citrullinemia",
        "Ornithine Carbamoyltransferase Deficiency",
        "Hyperargininemia",
        "N-Acetylglutamate Synthase Deficiency"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Human Genome Research Institute (NHGRI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "2 Years to 99 Years"
      },
      "enrollment_count": 4,
      "start_date": "2011-08-08",
      "completion_date": "2013-04-17",
      "has_results": false,
      "last_update_posted_date": "2019-12-09",
      "last_synced_at": "2026-10-15T18:37:16.237Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01421888"
    }
  ]
}