{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Egg-derived+influenza+virus+vaccine",
    "query": {
      "intervention": "Egg-derived influenza virus vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 15,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Egg-derived+influenza+virus+vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T00:22:22.848Z",
  "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": "NCT00645411",
      "title": "Pediatric Safety and Immunogenicity Study of Cell-Culture Derived and Egg-based Subunit Influenza Vaccines in Healthy Children and Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Cell culture-derived influenza subunit vaccine (cTIV)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Egg derived influenza subunit vaccine (eTIV)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "3 Years to 17 Years"
      },
      "enrollment_count": 3604,
      "start_date": "2007-10",
      "completion_date": "2008-07",
      "has_results": true,
      "last_update_posted_date": "2015-11-23",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 16,
      "location_summary": "Fayetteville, Arkansas • Downey, California • Bardstown, Kentucky + 12 more",
      "locations": [
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00645411"
    },
    {
      "nct_id": "NCT00972816",
      "title": "Safety and Immunogenicity of A/H1N1-SOIV (Swine Flu) Vaccine With and Without Adjuvant in Children (3 to < 9 Years)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "MF59-eH1N1",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis Vaccines",
      "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": 1357,
      "start_date": "2009-09",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2016-04-14",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 34,
      "location_summary": "Downey, California • Madera, California • Paramount, California + 29 more",
      "locations": [
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "Paramount",
          "state": "California"
        },
        {
          "city": "Paramount",
          "state": "California"
        },
        {
          "city": "West Covina",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00972816"
    },
    {
      "nct_id": "NCT04576702",
      "title": "Safety and Immunogenicity of an MF59-Adjuvanted Influenza Vaccine in Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza",
        "Human"
      ],
      "interventions": [
        {
          "name": "Investigational aIIV4c",
          "type": "BIOLOGICAL"
        },
        {
          "name": "IIV4c",
          "type": "BIOLOGICAL"
        },
        {
          "name": "aIIV4",
          "type": "BIOLOGICAL"
        },
        {
          "name": "RIV4",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Seqirus",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 471,
      "start_date": "2020-10-08",
      "completion_date": "2021-05-24",
      "has_results": true,
      "last_update_posted_date": "2024-04-17",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 21,
      "location_summary": "Mobile, Alabama • Tempe, Arizona • Jacksonville, Florida + 17 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Oakland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04576702"
    },
    {
      "nct_id": "NCT01825200",
      "title": "Comparison of the Safety of Flublok® Versus Licensed IIV in Healthy, Medically Stable Adults ≥ 50 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Flublok",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Afluria",
          "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": 2640,
      "start_date": "2013-03",
      "completion_date": "2013-05",
      "has_results": true,
      "last_update_posted_date": "2015-02-18",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 14,
      "location_summary": "Tucson, Arizona • Coral Gables, Florida • Savannah, Georgia + 11 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Savannah",
          "state": "Georgia"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01825200"
    },
    {
      "nct_id": "NCT00782431",
      "title": "Immunogenicity and Safety Study of an Inactivated Influenza Vaccine (Split Virus, Vero Cell Derived) in Adults Aged 50 Years and Older",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Vero cell derived, trivalent, seasonal influenza vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed egg-derived, trivalent seasonal influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Alachua Government Services, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 3208,
      "start_date": "2008-11",
      "completion_date": "2009-07",
      "has_results": true,
      "last_update_posted_date": "2026-01-02",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 30,
      "location_summary": "Mobile, Alabama • Tucson, Arizona • Sacramento, California + 25 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00782431"
    },
    {
      "nct_id": "NCT01857206",
      "title": "Safety of Two Trivalent Influenza Vaccines Evaluated in Children and Adolescents 4 to 17 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza",
        "Fever"
      ],
      "interventions": [
        {
          "name": "Mammalian cell based flu vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Egg based flu vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis Vaccines",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "4 Years to 17 Years"
      },
      "enrollment_count": 2055,
      "start_date": "2013-05",
      "completion_date": "2014-06",
      "has_results": true,
      "last_update_posted_date": "2014-12-05",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 18,
      "location_summary": "Mobile, Alabama • Ponte Vedra, Florida • Augusta, Kansas + 12 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Ponte Vedra",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Kansas"
        },
        {
          "city": "Newton",
          "state": "Kansas"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01857206"
    },
    {
      "nct_id": "NCT07703514",
      "title": "Safety and Immunogenicity of Chimeric Hemagglutinin mRNA Vaccine Candidates",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "cH15/3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cH4/3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cH5/1N1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "cH8/1N1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Saline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 60,
      "start_date": "2026-08-28",
      "completion_date": "2027-04-12",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07703514"
    },
    {
      "nct_id": "NCT00973349",
      "title": "Safety and Immunogenicity of A/H1N1-SOIV (Swine Flu) Vaccine With and Without Adjuvant in Non-Elderly and Elderly Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "MF59-eH1N1_f",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2719,
      "start_date": "2009-09",
      "completion_date": "2010-12",
      "has_results": true,
      "last_update_posted_date": "2015-12-07",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 20,
      "location_summary": "Miami, Florida • Lenexa, Kansas • Omaha, Nebraska + 16 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Endwell",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00973349"
    },
    {
      "nct_id": "NCT00264576",
      "title": "Study of the Safety and Immunogenicity of an Influenza Vaccine Administered to Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza Disease; Flu"
      ],
      "interventions": [
        {
          "name": "Influenza Virus Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis Vaccines",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 613,
      "start_date": "2005-10",
      "completion_date": "2006-05",
      "has_results": true,
      "last_update_posted_date": "2017-03-24",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 4,
      "location_summary": "Bardstown, Kentucky • Pittsburgh, Pennsylvania • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Bardstown",
          "state": "Kentucky"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00264576"
    },
    {
      "nct_id": "NCT00395174",
      "title": "Comparison of the Immunogenicity, Safety and Reactogenicity of FluBlok, To a Licensed Vaccine In Elderly Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Influenza Vaccination",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Protein Sciences Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 870,
      "start_date": "2006-10",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2009-12-17",
      "last_synced_at": "2026-10-06T00:22:22.848Z",
      "location_count": 7,
      "location_summary": "Baltimore, Maryland • Rochester, Minnesota • Shrewsbury, New Jersey + 3 more",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Shrewsbury",
          "state": "New Jersey"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00395174"
    }
  ]
}