{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Influenza+A+%28H1N1%29+2009+Monovalent+Vaccine%2F+Influenza+A+%28H1N1%29+Monovalent+Vaccine+Live",
    "query": {
      "intervention": "Influenza A (H1N1) 2009 Monovalent Vaccine/ Influenza A (H1N1) Monovalent Vaccine Live"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-11T02:19:31.490Z",
  "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": "NCT01097941",
      "title": "Effect of Age and Prior Immunity on Response to H1N1 Vaccines in Children",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "2009 H1N1 Influenza"
      ],
      "interventions": [
        {
          "name": "Live Attenuated H1N1 Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Influenza A (H1N1) 2009 Monovalent Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Influenza A (H1N1) 2009 Monovalent Vaccine/ Influenza A (H1N1) Monovalent Vaccine Live",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "9 Years",
        "sex": "ALL",
        "summary": "4 Years to 9 Years"
      },
      "enrollment_count": 0,
      "start_date": "2010-03",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2015-09-24",
      "last_synced_at": "2026-10-11T02:19:31.490Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01097941"
    },
    {
      "nct_id": "NCT00946101",
      "title": "A Study to Evaluate the Safety of HIN1 Monovalent Vaccine (MEDI3414) in Children 2 to 17 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "MEDI3414 [Influenza A(H1N1) live attenuated, intranasal]",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "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": 326,
      "start_date": "2009-08",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2011-08-11",
      "last_synced_at": "2026-10-11T02:19:31.490Z",
      "location_count": 16,
      "location_summary": "Mobile, Alabama • Sacramento, California • San Diego, California + 13 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Bardstown",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00946101"
    },
    {
      "nct_id": "NCT00945893",
      "title": "A Study to Evaluate the Safety of H1N1 Monovalent Vaccine (MEDI3414) in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "MEDI3414 [Influenza A/H1N1 live attenuated, intranasal]",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "MedImmune LLC",
      "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": 300,
      "start_date": "2009-08",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2011-09-12",
      "last_synced_at": "2026-10-11T02:19:31.490Z",
      "location_count": 5,
      "location_summary": "Daytona Beach, Florida • Miami, Florida • South Miami, Florida + 2 more",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00945893"
    },
    {
      "nct_id": "NCT01055184",
      "title": "Effects of Age on Response to the 2009 H1N1 Virus Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "2009 H1N1 Influenza Virus"
      ],
      "interventions": [
        {
          "name": "2009 H1N1 Virus Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2010-03",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2016-05-30",
      "last_synced_at": "2026-10-11T02:19:31.490Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01055184"
    },
    {
      "nct_id": "NCT01023776",
      "title": "Infectivity, Replication & Immunogenicity of Live nH1N1 Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "A/California/07/09 live monovalent H1N1 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "32 Years",
        "sex": "ALL",
        "summary": "18 Years to 32 Years"
      },
      "enrollment_count": 20,
      "start_date": "2009-11",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2015-12-23",
      "last_synced_at": "2026-10-11T02:19:31.490Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01023776"
    }
  ]
}