{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Influenza+A",
    "query": {
      "condition": "Influenza A"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 680,
    "total_pages": 68,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Influenza+A&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:10:52.342Z",
  "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": "NCT01196975",
      "title": "A Study to Evaluate the Safety and Immunogenicity of GSK Biologicals' Seasonal Influenza Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Quadrivalent seasonal influenza vaccine GSK2282512A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluLavalTM-VB",
          "type": "BIOLOGICAL"
        },
        {
          "name": "FluLavalTM-YB",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1707,
      "start_date": "2010-10-01",
      "completion_date": "2011-06-24",
      "has_results": true,
      "last_update_posted_date": "2018-09-21",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 6,
      "location_summary": "Mesa, Arizona • Wichita, Kansas • Elkridge, Maryland + 3 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        },
        {
          "city": "Elkridge",
          "state": "Maryland"
        },
        {
          "city": "Endwell",
          "state": "New York"
        },
        {
          "city": "Jefferson Hills",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01196975"
    },
    {
      "nct_id": "NCT04596657",
      "title": "Vitamin D3 Supplementation to Prevent Respiratory Tract Infections",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Tract Infections",
        "Covid19",
        "Flu Like Illness"
      ],
      "interventions": [
        {
          "name": "Vitamin D supplementation",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "The Cooper Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 877,
      "start_date": "2020-10-27",
      "completion_date": "2023-10-19",
      "has_results": false,
      "last_update_posted_date": "2023-12-08",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 1,
      "location_summary": "Camden, New Jersey",
      "locations": [
        {
          "city": "Camden",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04596657"
    },
    {
      "nct_id": "NCT01381029",
      "title": "Immune Response to Seasonal Influenza Vaccine in HIV Infected Individuals",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza, Human",
        "Human Immunodeficiency Virus I Infection"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 74,
      "start_date": "2009-09",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2023-05-19",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01381029"
    },
    {
      "nct_id": "NCT04590066",
      "title": "Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates at a Large Retail Pharmacy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "Flu shot text messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 734383,
      "start_date": "2020-09-25",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-02-01",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04590066"
    },
    {
      "nct_id": "NCT03035396",
      "title": "Clinical Performance of the Diassess Influenza A and B Test",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza, Human",
        "Influenza",
        "Flu"
      ],
      "interventions": [
        {
          "name": "Diassess Influenza A and B Test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Diassess Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 567,
      "start_date": "2016-12-29",
      "completion_date": "2017-05",
      "has_results": false,
      "last_update_posted_date": "2018-02-06",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03035396"
    },
    {
      "nct_id": "NCT00979251",
      "title": "Oral Triple Combination Antiviral Drug Therapy for Treatment of Influenza A in Immunocompromised Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Oseltamivir Phosphate",
          "type": "DRUG"
        },
        {
          "name": "ADS-8902",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Adamas Pharmaceuticals, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "1 Year to 65 Years"
      },
      "enrollment_count": 2,
      "start_date": "2009-09",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2014-04-14",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 16,
      "location_summary": "San Francisco, California • Hollywood, Florida • Miramar, Florida + 11 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Miramar",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00979251"
    },
    {
      "nct_id": "NCT02212106",
      "title": "A Study to Evaluate the Safety and Tolerability of Trivalent Influenza Virus Vaccine in Children Aged 5 Years to < 9 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "bioCSL Trivalent Influenza Virus Vaccine (CSL TIV)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Comparator Quadrivalent Influenza Virus Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Seqirus",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "5 Years to 8 Years"
      },
      "enrollment_count": 402,
      "start_date": "2014-09",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2015-10-16",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 11,
      "location_summary": "Los Angeles, California • Boise, Idaho • St Louis, Missouri + 8 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Binghamton",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02212106"
    },
    {
      "nct_id": "NCT06207929",
      "title": "Wearable Assisted Viral Evidence (WAVE) Study A Decentralized, Prospective Study Exploring the Relationship Between Passively-collected Data From Wearable Activity Devices and Respiratory Viral Infections",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Influenza, Human",
        "COVID-19",
        "Influenza A",
        "Influenza B",
        "Respiratory Syncytial Virus (RSV)"
      ],
      "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": 18157,
      "start_date": "2024-01-21",
      "completion_date": "2024-08-07",
      "has_results": false,
      "last_update_posted_date": "2024-09-05",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 1,
      "location_summary": "San Mateo, California",
      "locations": [
        {
          "city": "San Mateo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06207929"
    },
    {
      "nct_id": "NCT00192153",
      "title": "Trial to Investigate Immune Responses Elicited by a Liquid Formulation of Influenza Virus Vaccine(CAIV-T)in Healthy Adults Aged 18 to 59 and Healthy Adults Aged 60 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "CAIV-T or TIV",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "MedImmune LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 240,
      "start_date": "2001-07",
      "completion_date": "2001-10",
      "has_results": false,
      "last_update_posted_date": "2021-09-13",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 2,
      "location_summary": "New Port Richey, Florida • Charlottesville, Virginia",
      "locations": [
        {
          "city": "New Port Richey",
          "state": "Florida"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00192153"
    },
    {
      "nct_id": "NCT01855945",
      "title": "Safety and Immunogenicity of Three Dosage Levels of Swine Influenza Vaccine in Children Ages 3 to <9 Years, Adolescents 9 to <18 Years, Adults 18 to <65 Years and Elderly 65 Years and Older.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Prophylaxis of A/H3N2v Influenza"
      ],
      "interventions": [
        {
          "name": "Swine Influenza",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis Vaccines",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "92 Years",
        "sex": "ALL",
        "summary": "3 Years to 92 Years"
      },
      "enrollment_count": 627,
      "start_date": "2013-05",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2016-02-17",
      "last_synced_at": "2026-05-22T08:10:52.342Z",
      "location_count": 11,
      "location_summary": "Redding, California • Sacramento, California • Lenexa, Kansas + 8 more",
      "locations": [
        {
          "city": "Redding",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01855945"
    }
  ]
}