{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine+%28Fluzone%C2%AE%29&page=4",
    "query": {
      "intervention": "Influenza Virus Vaccine (Fluzone®)",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 173,
    "total_pages": 18,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine+%28Fluzone%C2%AE%29&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+Virus+Vaccine+%28Fluzone%C2%AE%29&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T16:09:31.699Z",
  "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": "NCT02563093",
      "title": "Study of Fluzone® Quadrivalent, Fluzone® Intradermal Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone Quadrivalent vaccine, 2015-2016 formulation, No Preservative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone Intradermal Quadrivalent vaccine, 2015-2016 formulation",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone High-Dose vaccine, 2015-2016 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": "2015-09",
      "completion_date": "2016-07",
      "has_results": true,
      "last_update_posted_date": "2016-12-12",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "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/NCT02563093"
    },
    {
      "nct_id": "NCT02285998",
      "title": "Protective Efficacy of Flublok® Quadrivalent Versus Licensed Inactivated Influenza Vaccine in Adults ≥50 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Flublok Quadrivalent Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Protein Sciences Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 9003,
      "start_date": "2014-10",
      "completion_date": "2015-05",
      "has_results": true,
      "last_update_posted_date": "2017-10-27",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 38,
      "location_summary": "Mobile, Alabama • Tempe, Arizona • Little Rock, Arkansas + 34 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Redding",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02285998"
    },
    {
      "nct_id": "NCT02544880",
      "title": "PDE5 Inhibition Via Tadalafil to Enhance Anti-Tumor Mucin 1 (MUC1) Vaccine Efficacy in Patients With HNSCC",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma",
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Anti-MUC1 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Anti-Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tadalafil Placebo",
          "type": "OTHER"
        },
        {
          "name": "Anti-MUC1 Vaccine Placebo",
          "type": "OTHER"
        },
        {
          "name": "Standard of Care Treatment",
          "type": "OTHER"
        },
        {
          "name": "Anti-Influenza Vaccine Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Donald T. Weed, MD, FACS",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2016-04-25",
      "completion_date": "2021-06-08",
      "has_results": false,
      "last_update_posted_date": "2021-06-15",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02544880"
    },
    {
      "nct_id": "NCT02675608",
      "title": "Vaccine Efficacy in Diabetic and Elderly Patients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Tulane University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 164,
      "start_date": "2015-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2017-01-13",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02675608"
    },
    {
      "nct_id": "NCT01737710",
      "title": "Atopic Dermatitis Research Network (ADRN) Influenza Vaccine Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dermatitis, Atopic"
      ],
      "interventions": [
        {
          "name": "Fluzone® Intradermal Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® (Intramuscular) 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": "64 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 64 Years · Female only"
      },
      "enrollment_count": 368,
      "start_date": "2012-10",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2017-03-29",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 5,
      "location_summary": "Denver, Colorado • Chicago, Illinois • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "New York"
        },
        {
          "city": "Protland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01737710"
    },
    {
      "nct_id": "NCT05513391",
      "title": "Study With Quadrivalent Recombinant Influenza Vaccine (RIV4) Compared With Egg-Based Quadrivalent Influenza Vaccine (IIV4) in Participants Aged 3 to 8 Years",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza Immunization"
      ],
      "interventions": [
        {
          "name": "Recombinant influenza vaccine (RIV4)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent influenza vaccine (IIV4)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "3 Years to 8 Years"
      },
      "enrollment_count": 366,
      "start_date": "2022-11-10",
      "completion_date": "2023-10-03",
      "has_results": true,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 18,
      "location_summary": "Birmingham, Alabama • Jonesboro, Arkansas • San Diego, California + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Sioux City",
          "state": "Iowa"
        },
        {
          "city": "Newton",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05513391"
    },
    {
      "nct_id": "NCT00755274",
      "title": "Annual Study for Serum Collection for Immunogenicity and Safety Evaluation in Healthy Children Receiving Fluzone®",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza",
        "Orthomyxoviridae Infections"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Vaccine No Preservative: Pediatric Dose",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "6 Months to 5 Years"
      },
      "enrollment_count": 32,
      "start_date": "2008-09",
      "completion_date": "2009-01",
      "has_results": true,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00755274"
    },
    {
      "nct_id": "NCT00831987",
      "title": "Safety and Immunogenicity of the World Health Organization (WHO) Formulation of the 2004-2005 Fluzone® Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone®: Influenza virus vaccine 2004-2005 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": 120,
      "start_date": "2004-08",
      "completion_date": "2006-02",
      "has_results": true,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00831987"
    },
    {
      "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": "2026-10-13T16:09:31.699Z",
      "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": "NCT07431840",
      "title": "Immune Defense Protein Impact On Respiratory Immune Outcomes",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Upper Respiratory Disease",
        "Influenza",
        "Viral Upper Respiratory Infection"
      ],
      "interventions": [
        {
          "name": "Immune Defense Protein 50mg Dose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "IDP 200mg Dose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Matching Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Quantec Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2025-12-05",
      "completion_date": "2026-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-10-13T16:09:31.699Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07431840"
    }
  ]
}