{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=influenza+virus+vaccination",
    "query": {
      "intervention": "influenza virus vaccination"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 93,
    "total_pages": 10,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=influenza+virus+vaccination&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T17:51:16.937Z",
  "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": "NCT04613206",
      "title": "High vs. Standard Dose Influenza Vaccine in Adult SOT Recipients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Immunization; Infection",
        "Transplantation Infection",
        "Influenza",
        "Solid Organ Transplant"
      ],
      "interventions": [
        {
          "name": "High Dose Quadrivalent Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Standard Dose Quadrivalent Inactivated Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 396,
      "start_date": "2021-01-11",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04613206"
    },
    {
      "nct_id": "NCT01388439",
      "title": "Pharmacokinetics of Oseltamivir in Newborns and Infants",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Prematurity of Fetus"
      ],
      "interventions": [
        {
          "name": "Oseltamivir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. Louis Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "6 Months",
        "sex": "ALL",
        "summary": "Up to 6 Months"
      },
      "enrollment_count": 19,
      "start_date": "2011-01",
      "completion_date": "2011-01",
      "has_results": false,
      "last_update_posted_date": "2011-07-06",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01388439"
    },
    {
      "nct_id": "NCT06024096",
      "title": "Systems Biological Assessment of Statin Effect on Vaccine Responses",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vaccine Response"
      ],
      "interventions": [
        {
          "name": "Atorvastatin",
          "type": "DRUG"
        },
        {
          "name": "Quadrivalent seasonal influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "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": 63,
      "start_date": "2023-09-20",
      "completion_date": "2024-12-16",
      "has_results": true,
      "last_update_posted_date": "2026-01-14",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06024096"
    },
    {
      "nct_id": "NCT07147517",
      "title": "Preparedness Through Respiratory Virus Epidemiology and Community Engagement",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Respiratory Infection Virus",
        "COVID -19",
        "RSV",
        "FLU"
      ],
      "interventions": [
        {
          "name": "Component A0",
          "type": "OTHER"
        },
        {
          "name": "Component A1",
          "type": "OTHER"
        },
        {
          "name": "Component A2",
          "type": "OTHER"
        },
        {
          "name": "Component B",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 25000,
      "start_date": "2025-10-08",
      "completion_date": "2030-10-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 2,
      "location_summary": "La Jolla, California • San Ysidro, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "San Ysidro",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07147517"
    },
    {
      "nct_id": "NCT05858450",
      "title": "This Study Intends to Describe the Characteristics of Patients Given the Pfizer-BioNTech Bivalent mRNA COVID-19 Vaccine and Any Commercially Available Influenza Vaccines at the Same Time Versus at Different Times.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza, Human",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Comirnaty",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3442996,
      "start_date": "2023-05-05",
      "completion_date": "2023-05-12",
      "has_results": true,
      "last_update_posted_date": "2024-09-20",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05858450"
    },
    {
      "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": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00755274"
    },
    {
      "nct_id": "NCT02518555",
      "title": "Ibrutinib as an Immune Modulating Agent for Patients With Asymptomatic, High-risk CLL/SLL Risk Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Lymphocytic Leukemia",
        "Small Lymphocytic Lymphoma"
      ],
      "interventions": [
        {
          "name": "Diphtheria Toxoid/Tetanus Toxoid/Acellular Pertussis Vaccine Adsorbed",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ibrutinib",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Pharmacological Study",
          "type": "OTHER"
        },
        {
          "name": "Pneumococcal 13-valent Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quality-of-Life Assessment",
          "type": "OTHER"
        },
        {
          "name": "Trivalent Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Jennifer Woyach",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2016-01-12",
      "completion_date": "2026-01-05",
      "has_results": false,
      "last_update_posted_date": "2026-04-06",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02518555"
    },
    {
      "nct_id": "NCT00419224",
      "title": "Influenza Vaccination in Bone Marrow Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "inactivated split-virus influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 36,
      "start_date": "2002-10",
      "completion_date": "2003-04",
      "has_results": false,
      "last_update_posted_date": "2007-01-11",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00419224"
    },
    {
      "nct_id": "NCT04245800",
      "title": "Home Testing of Respiratory Illness",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza -Like Illness",
        "Influenza A",
        "Influenza Type B",
        "Respiratory Viral Infection",
        "Respiratory Tract Infections"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 5233,
      "start_date": "2019-12-13",
      "completion_date": "2020-07-06",
      "has_results": false,
      "last_update_posted_date": "2020-07-22",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 1,
      "location_summary": "San Mateo, California",
      "locations": [
        {
          "city": "San Mateo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04245800"
    },
    {
      "nct_id": "NCT04080531",
      "title": "Influenza Vaccination for Flu Prevention in Patients With Plasma Cell Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Plasma Cell Neoplasm"
      ],
      "interventions": [
        {
          "name": "Pneumococcal 13-valent Conjugate Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Trivalent Influenza Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 165,
      "start_date": "2019-10-18",
      "completion_date": "2022-12-15",
      "has_results": true,
      "last_update_posted_date": "2025-02-28",
      "last_synced_at": "2026-09-29T17:51:16.937Z",
      "location_count": 2,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04080531"
    }
  ]
}