{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Influenza+Vaccine&page=2",
    "query": {
      "condition": "Influenza Vaccine",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Influenza+Vaccine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T11:03:23.044Z",
  "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": "NCT00335855",
      "title": "Pharma-Pen (Formerly Innoject) Auto-injectory TIV",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Auto-injector for IM/SC vaccine administration",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 0,
      "start_date": null,
      "completion_date": "2006-10",
      "has_results": false,
      "last_update_posted_date": "2019-01-23",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00335855"
    },
    {
      "nct_id": "NCT00395174",
      "title": "Comparison of the Immunogenicity, Safety and Reactogenicity of FluBlok, To a Licensed Vaccine In Elderly Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza Vaccination",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Protein Sciences Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 870,
      "start_date": "2006-10",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2009-12-17",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 7,
      "location_summary": "Baltimore, Maryland • Rochester, Minnesota • Shrewsbury, New Jersey + 3 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Shrewsbury",
          "state": "New Jersey"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00395174"
    },
    {
      "nct_id": "NCT00382980",
      "title": "Dose-Escalating Trial Using Vero Cell-culture Derived H5N1 +/- Aluminum in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Aluminum hydroxide",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Inactivated Vero cell based whole virus influenza A/H5N1",
          "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": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 308,
      "start_date": "2006-10",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 5,
      "location_summary": "Stanford, California • Torrance, California • Baltimore, Maryland + 2 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00382980"
    },
    {
      "nct_id": "NCT06567860",
      "title": "Characterizing Late-season Influenza Vaccine Responses to Compare the 2023 and 2024 Vaccine Formulations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza A"
      ],
      "interventions": [
        {
          "name": "Influenza Fluzone vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "La Jolla Institute for Immunology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 23,
      "start_date": "2024-05-21",
      "completion_date": "2025-02-06",
      "has_results": true,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06567860"
    },
    {
      "nct_id": "NCT01709825",
      "title": "The Effect of Probiotics (L. Helveticus, B. Longum, and B. Bifidum) on Immune Function and Digestive Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Probiotic- Bifidobacterium Bifidum",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Sugar Pill",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Probiotic- Lactobacillus helveticus",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Probiotic- Bifidobacterium longum ss. Infantis R0033",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 583,
      "start_date": "2012-09",
      "completion_date": "2013-01",
      "has_results": false,
      "last_update_posted_date": "2015-01-29",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01709825"
    },
    {
      "nct_id": "NCT06087640",
      "title": "A Clinical Study to Evaluate the Efficacy, Safety and Immunogenicity of an Adjuvanted Influenza Vaccine Compared to a Non-adjuvanted Influenza Vaccine in Adults ≥65 Years of Age",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "aQIV or aTIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "QIV or TIV",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Seqirus",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 35800,
      "start_date": "2023-10-23",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 111,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 95 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06087640"
    },
    {
      "nct_id": "NCT02352389",
      "title": "A Pilot Study of Influenza Viruses Isolated From Immunocompromised Children and Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "Blood sample",
          "type": "OTHER"
        },
        {
          "name": "Nasal swab",
          "type": "OTHER"
        },
        {
          "name": "Oropharyngeal swab",
          "type": "OTHER"
        },
        {
          "name": "Stool sample",
          "type": "OTHER"
        },
        {
          "name": "Symptom checklist",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "Up to 21 Years"
      },
      "enrollment_count": 16,
      "start_date": "2015-03-30",
      "completion_date": "2022-12-08",
      "has_results": false,
      "last_update_posted_date": "2023-12-12",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02352389"
    },
    {
      "nct_id": "NCT02473510",
      "title": "Study to Evaluate the Safety of 3 New 6:2 Influenza Virus Reassortants in Adults for the 2015-2016 Season",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Trivalent Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "MedImmune LLC",
      "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": 301,
      "start_date": "2015-06",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2016-11-28",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 3,
      "location_summary": "South Miami, Florida • Stockbridge, Georgia • Portland, Oregon",
      "locations": [
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02473510"
    },
    {
      "nct_id": "NCT00192140",
      "title": "Trial to Assess the Shedding,Immunogenicity, and Safety of FluMist Administered to Healthy Individuals 5-49 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "FluMist",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "MedImmune LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "5 Years to 49 Years"
      },
      "enrollment_count": 345,
      "start_date": "2004-06",
      "completion_date": "2005-01",
      "has_results": false,
      "last_update_posted_date": "2007-12-28",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 11,
      "location_summary": "Miami, Florida • Chicago, Illinois • Bardstown, Kentucky + 8 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00192140"
    },
    {
      "nct_id": "NCT01173224",
      "title": "Influenza Antiviral DAS181-F03",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "DAS181",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 18,
      "start_date": "2010-11",
      "completion_date": "2011-09",
      "has_results": false,
      "last_update_posted_date": "2013-07-19",
      "last_synced_at": "2026-06-11T11:03:23.044Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01173224"
    }
  ]
}