{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Yellow+Fever+%28Healthy+Volunteers%29",
    "query": {
      "condition": "Yellow Fever (Healthy Volunteers)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T09:28:59.936Z",
  "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": "NCT02743455",
      "title": "A Trial to Evaluate the Safety, Reactogenicity, and Immunogenicity of MVA-BN Yellow Fever Vaccine With and Without Montanide ISA-720 Adjuvant in 18-45 Year Old Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Yellow Fever",
        "Yellow Fever Immunisation"
      ],
      "interventions": [
        {
          "name": "ISA-720",
          "type": "DRUG"
        },
        {
          "name": "MVA Smallpox Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MVA-BN Yellow Fever Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "YF Vax 17D Strain",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 92,
      "start_date": "2016-07-05",
      "completion_date": "2018-03-22",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-07-24T09:28:59.936Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • St Louis, Missouri",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02743455"
    },
    {
      "nct_id": "NCT03342898",
      "title": "Immunogenicity and Safety of Tetravalent Dengue Vaccine (TDV) Administered With a Yellow Fever Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dengue"
      ],
      "interventions": [
        {
          "name": "YF-17D",
          "type": "BIOLOGICAL"
        },
        {
          "name": "TDV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Takeda",
      "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": 900,
      "start_date": "2018-02-28",
      "completion_date": "2019-05-22",
      "has_results": true,
      "last_update_posted_date": "2020-10-08",
      "last_synced_at": "2026-07-24T09:28:59.936Z",
      "location_count": 11,
      "location_summary": "Mobile, Alabama • Pomona, California • Meridian, Idaho + 8 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Pomona",
          "state": "California"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03342898"
    },
    {
      "nct_id": "NCT04942210",
      "title": "Study on an Investigational Yellow Fever Vaccine Compared With YF-VAX in Adults in the USA",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Yellow Fever",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Yellow fever vaccine (produced on serum-free Vero cells)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Yellow fever 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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 568,
      "start_date": "2021-07-01",
      "completion_date": "2027-06-29",
      "has_results": true,
      "last_update_posted_date": "2025-06-18",
      "last_synced_at": "2026-07-24T09:28:59.936Z",
      "location_count": 11,
      "location_summary": "Decatur, Georgia • New Orleans, Louisiana • Baltimore, Maryland + 8 more",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04942210"
    },
    {
      "nct_id": "NCT04142086",
      "title": "Dose-ranging Study of an Investigational Yellow Fever Candidate Vaccine in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Yellow Fever (Healthy Volunteers)"
      ],
      "interventions": [
        {
          "name": "Yellow fever vaccine (produced on serum-free Vero cells), Dosage 1 vYF vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Yellow fever vaccine (produced on serum-free Vero cells), Dosage 2 vYF vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Yellow fever vaccine (produced on serum-free Vero cells), Dosage 3 vYF vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Yellow fever 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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 73,
      "start_date": "2020-01-15",
      "completion_date": "2021-06-24",
      "has_results": false,
      "last_update_posted_date": "2025-09-22",
      "last_synced_at": "2026-07-24T09:28:59.936Z",
      "location_count": 1,
      "location_summary": "Silver Spring, Maryland",
      "locations": [
        {
          "city": "Silver Spring",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04142086"
    }
  ]
}