{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluarix+Quadrivalent%C2%AE+Influenza+Virus+Vaccine&page=3",
    "query": {
      "intervention": "Fluarix Quadrivalent® Influenza Virus Vaccine",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluarix+Quadrivalent%C2%AE+Influenza+Virus+Vaccine&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluarix+Quadrivalent%C2%AE+Influenza+Virus+Vaccine&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T14:48:15.443Z",
  "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": "NCT03088904",
      "title": "Genetic and Environmental Factors in the Response to Influenza Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "FluMist® Quadrivalent",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone® Quadrivalent vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "12 Years to 49 Years"
      },
      "enrollment_count": 109,
      "start_date": "2014-10-03",
      "completion_date": "2018-12-12",
      "has_results": false,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03088904"
    },
    {
      "nct_id": "NCT05518500",
      "title": "A Deep Longitudinal Analysis of Next Generation Influenza Vaccines in Older Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Aging",
        "Influenza Vaccine",
        "Dendritic Cell",
        "Vaccine Response"
      ],
      "interventions": [
        {
          "name": "Flu Vaccine (Year 1)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Flu Vaccine (Year 2)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Flu Vaccine (Year 3)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Flu Vaccine (Year 4)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "The Jackson Laboratory",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2022-08-31",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-03",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 1,
      "location_summary": "Farmington, Connecticut",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05518500"
    },
    {
      "nct_id": "NCT05397223",
      "title": "A Study of Modified mRNA Vaccines in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "SARS-CoV-2",
        "Seasonal Influenza",
        "Respiratory Syncytial Virus",
        "Cytomegalovirus"
      ],
      "interventions": [
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1010",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1345",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FLUAD®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1647",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 308,
      "start_date": "2022-05-24",
      "completion_date": "2026-02-27",
      "has_results": false,
      "last_update_posted_date": "2026-03-12",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 8,
      "location_summary": "Hollywood, Florida • Savannah, Georgia • Sioux City, Iowa + 4 more",
      "locations": [
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        },
        {
          "city": "Sioux City",
          "state": "Iowa"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05397223"
    },
    {
      "nct_id": "NCT01946425",
      "title": "Safety and Immunogenicity Among Healthy Children Receiving Fluzone® Quadrivalent Influenza Virus Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone® Quadrivalent Influenza Virus 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": "2013-09",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2014-09-25",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "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/NCT01946425"
    },
    {
      "nct_id": "NCT02539108",
      "title": "Safety and Immunogenicity of the 2015-2016 Formulation of Fluzone® Quadrivalent (Influenza Vaccine) Among Healthy Children",
      "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": "2015-08",
      "completion_date": "2016-07",
      "has_results": true,
      "last_update_posted_date": "2016-11-29",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "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/NCT02539108"
    },
    {
      "nct_id": "NCT02600585",
      "title": "Post-Marketing Observational Study of Safety Following Vaccination With Flublok® Compared to Licensed IIV in Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Human Influenza"
      ],
      "interventions": [
        {
          "name": "Recombinant 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": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 254648,
      "start_date": "2015-11",
      "completion_date": "2016-09",
      "has_results": false,
      "last_update_posted_date": "2017-10-12",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02600585"
    },
    {
      "nct_id": "NCT05801978",
      "title": "Durability of Vaccine Responses",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vaccine Response"
      ],
      "interventions": [
        {
          "name": "Live Attenuated Yellow Fever 17D Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent seasonal influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 66,
      "start_date": "2023-04-11",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Decatur, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05801978"
    },
    {
      "nct_id": "NCT04969276",
      "title": "Study of a Quadrivalent High-Dose Influenza Vaccine and a Moderna COVID-19 Vaccine Administered Either Concomitantly or Singly in Participants 65 Years of Age and Older Previously Vaccinated With a 2-dose Schedule of Moderna COVID-19 Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza Immunization",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Quadrivalent Inactivated Influenza High Dose",
          "type": "BIOLOGICAL"
        },
        {
          "name": "COVID-19 mRNA Vaccine (nucleoside modified)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 306,
      "start_date": "2021-07-16",
      "completion_date": "2022-02-08",
      "has_results": true,
      "last_update_posted_date": "2025-09-12",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 6,
      "location_summary": "Glendale, Arizona • San Diego, California • Vista, California + 3 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Vista",
          "state": "California"
        },
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04969276"
    },
    {
      "nct_id": "NCT00988143",
      "title": "A Study of Influenza Virus Vaccines in Children and Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "2009-2010 Trivalent Influenza Virus Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "2008-2009 Trivalent Influenza Virus Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent Influenza Virus 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": 600,
      "start_date": "2009-10",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2013-12-12",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 4,
      "location_summary": "Durham, North Carolina • Cincinnati, Ohio • Jefferson Hills, Pennsylvania + 1 more",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        },
        {
          "city": "Jefferson Hills",
          "state": "Pennsylvania"
        },
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00988143"
    },
    {
      "nct_id": "NCT03617523",
      "title": "Safety and Immunogenicity of Fluzone® Quadrivalent, Flublok® Quadrivalent, and Fluzone® High-Dose, Influenza Vaccines, 2018-2019 Formulations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Fluzone Quadrivalent vaccine, 2018-2019 formulation",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Flublok Quadrivalent vaccine, 2018-2019 formulation",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone High-Dose vaccine, 2018-2019 formulation",
          "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": "2018-09-10",
      "completion_date": "2018-11-12",
      "has_results": true,
      "last_update_posted_date": "2022-03-29",
      "last_synced_at": "2026-10-10T14:48:15.443Z",
      "location_count": 3,
      "location_summary": "Bardstown, Kentucky • Metairie, Louisiana • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03617523"
    }
  ]
}