{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fluarix+Quadrivalent%C2%AE+Influenza+Virus+Vaccine",
    "query": {
      "intervention": "Fluarix Quadrivalent® Influenza Virus Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "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=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T05:44:53.878Z",
  "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": "NCT06118151",
      "title": "Safety and Immunogenicity of a Monovalent mRNA Vaccine Encoding Influenza Hemagglutinin in Adult Participants 18 Years of Age and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza",
        "Influenza Immunization"
      ],
      "interventions": [
        {
          "name": "Influenza Hemagglutinin mRNA vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent Recombinant Influenza Vaccine",
          "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": 388,
      "start_date": "2022-04-11",
      "completion_date": "2023-02-17",
      "has_results": false,
      "last_update_posted_date": "2023-11-07",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 20,
      "location_summary": "Rolling Hills Estates, California • San Diego, California • Coral Gables, Florida + 14 more",
      "locations": [
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06118151"
    },
    {
      "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": "2026-10-07T05:44:53.878Z",
      "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": "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": "2026-10-07T05:44:53.878Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03088904"
    },
    {
      "nct_id": "NCT01997450",
      "title": "A Case Control Study of the Effectiveness of Q/LAIV Versus Inactivated Influenza Vaccine and No Vaccine in Subjects 2-17 Years of Age",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza Vaccine Effectiveness"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "MedImmune LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "2 Years to 17 Years"
      },
      "enrollment_count": 4121,
      "start_date": "2013-12-02",
      "completion_date": "2016-04-15",
      "has_results": false,
      "last_update_posted_date": "2025-03-10",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 8,
      "location_summary": "Gainesville, Florida • Bloomington, Minnesota • Winston-Salem, North Carolina + 5 more",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Bloomington",
          "state": "Minnesota"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Akron",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01997450"
    },
    {
      "nct_id": "NCT03739112",
      "title": "Efficacy of a Plant-derived Quadrivalent Virus-like Particle (VLP) Vaccine in the Elderly",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Virus Diseases",
        "RNA Virus Infections",
        "Respiratory Tract Diseases",
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Quadrivalent VLP Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluarix Quadrivalent® Comparator Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Medicago",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 12794,
      "start_date": "2018-09-18",
      "completion_date": "2019-07-16",
      "has_results": true,
      "last_update_posted_date": "2023-06-23",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 50,
      "location_summary": "Mobile, Alabama • Tempe, Arizona • Banning, California + 42 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Banning",
          "state": "California"
        },
        {
          "city": "Redding",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03739112"
    },
    {
      "nct_id": "NCT01240746",
      "title": "Study of Quadrivalent Influenza Vaccine Among Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Licensed 2010-2011 Trivalent Influenza Vaccine, No Preservative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational Trivalent Influenza Vaccine with alternate B strain, No Preservative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "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": 4363,
      "start_date": "2010-11",
      "completion_date": "2012-02",
      "has_results": true,
      "last_update_posted_date": "2015-07-14",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 67,
      "location_summary": "Dothan, Alabama • Chandler, Arizona • Mesa, Arizona + 55 more",
      "locations": [
        {
          "city": "Dothan",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01240746"
    },
    {
      "nct_id": "NCT03898986",
      "title": "The Effects of Attenuated Versus Inactivated Flu Vaccine in Twin Sets",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Live attenuated influenza vaccine (LAIV4)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Inactivated Influenza Vaccine (IIV4)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "2 Years to 20 Years"
      },
      "enrollment_count": 18,
      "start_date": "2019-10-08",
      "completion_date": "2023-12-31",
      "has_results": true,
      "last_update_posted_date": "2025-03-06",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03898986"
    },
    {
      "nct_id": "NCT01218646",
      "title": "Study of Quadrivalent Influenza Vaccine Among Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Investigational Quadrivalent Inactivated Influenza Vaccine, No Preservative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational Trivalent Inactivated Influenza Vaccine, No Preservative",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone®: 2010-2011 Trivalent Inactivated Influenza Vaccine, No Preservative",
          "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": 739,
      "start_date": "2010-10",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2013-10-23",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 12,
      "location_summary": "Hoover, Alabama • South Miami, Florida • Springfield, Missouri + 9 more",
      "locations": [
        {
          "city": "Hoover",
          "state": "Alabama"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Springfield",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01218646"
    },
    {
      "nct_id": "NCT01712984",
      "title": "Study of Intradermal Quadrivalent Influenza Vaccine in Adults Aged 18 Through 64 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Vaccine USP Quadrivalent, (Zonal Purified Subvirion) 2012 2013 Formulation",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Influenza Virus Vaccine USP Trivalent Types A and B (Zonal Purified Subvirion) Fluzone Intradermal",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "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": 3360,
      "start_date": "2012-10",
      "completion_date": "2013-10",
      "has_results": true,
      "last_update_posted_date": "2015-05-07",
      "last_synced_at": "2026-10-07T05:44:53.878Z",
      "location_count": 38,
      "location_summary": "Hoover, Alabama • Huntsville, Alabama • Chandler, Arizona + 32 more",
      "locations": [
        {
          "city": "Hoover",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01712984"
    },
    {
      "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": "2026-10-07T05:44:53.878Z",
      "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"
    }
  ]
}