{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Yellow+Fever",
    "query": {
      "intervention": "Yellow Fever"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 22,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Yellow+Fever&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T14:16:20.713Z",
  "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": "NCT00616356",
      "title": "Characterization of T Cell Responses Following Yellow Fever Virus Vaccination in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Yellow Fever"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Rockefeller University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 8,
      "start_date": "2007-12",
      "completion_date": "2008-06",
      "has_results": false,
      "last_update_posted_date": "2011-11-08",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00616356"
    },
    {
      "nct_id": "NCT05859490",
      "title": "Immunogenicity of Yellow Fever Vaccine 17D in Adults With Prior 17D Vaccination",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Yellow Fever",
        "Immunization; Infection"
      ],
      "interventions": [
        {
          "name": "17D",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "20 Years to 49 Years"
      },
      "enrollment_count": 35,
      "start_date": "2023-08-01",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-07-31",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05859490"
    },
    {
      "nct_id": "NCT00254826",
      "title": "Yellow Fever Virus Vaccine and Immune Globulin Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Viremia"
      ],
      "interventions": [
        {
          "name": "YF-VAX® plus saline",
          "type": "BIOLOGICAL"
        },
        {
          "name": "17D YF Vaccine plus Ig,",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 80,
      "start_date": "2006-06",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2013-12-04",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00254826"
    },
    {
      "nct_id": "NCT05801978",
      "title": "Durability of Vaccine Responses",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vaccine Response"
      ],
      "interventions": [
        {
          "name": "Live Attenuated Yellow Fever 17D Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Quadrivalent seasonal influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "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": 66,
      "start_date": "2023-04-11",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-07-17",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 3,
      "location_summary": "Atlanta, Georgia • Decatur, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05801978"
    },
    {
      "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": "2026-09-03",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "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": "NCT07002060",
      "title": "Phase 3 Randomized, Modified Double-blind, Active-controlled Safety Study on vYF in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Yellow Fever Immunization"
      ],
      "interventions": [
        {
          "name": "Yellow fever vaccine (live)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "YF vaccine (live)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 640,
      "start_date": "2025-05-22",
      "completion_date": "2026-01-20",
      "has_results": false,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 7,
      "location_summary": "Decatur, Georgia • New Orleans, Louisiana • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07002060"
    },
    {
      "nct_id": "NCT00723489",
      "title": "Immune Response to Yellow Fever Vaccination in Adults With Atopic Dermatitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Atopic Dermatitis"
      ],
      "interventions": [
        {
          "name": "Live Yellow Fever Vaccine (YFV-17D)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "YFV-17D Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "27 Years",
        "maximum_age": "43 Years",
        "sex": "ALL",
        "summary": "27 Years to 43 Years"
      },
      "enrollment_count": 82,
      "start_date": "2008-08",
      "completion_date": "2011-04",
      "has_results": true,
      "last_update_posted_date": "2014-01-13",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Denver, Colorado • Portland, Oregon",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00723489"
    },
    {
      "nct_id": "NCT00995865",
      "title": "Trial of Yellow Fever Inactivated Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Yellow Fever"
      ],
      "interventions": [
        {
          "name": "XRX-001 Inactivated yellow fever vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GE Healthcare",
      "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": 60,
      "start_date": "2010-01",
      "completion_date": "2010-10",
      "has_results": true,
      "last_update_posted_date": "2016-05-05",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "Lenexa, Kansas",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00995865"
    },
    {
      "nct_id": "NCT05374317",
      "title": "Study of the Safety and Immunogenicity of Reduced Doses of the US Yellow Fever Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Yellow Fever Vaccination Reaction"
      ],
      "interventions": [
        {
          "name": "Yellow Fever Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "US Army Medical Research Institute of Infectious Diseases",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 88,
      "start_date": "2021-06-07",
      "completion_date": "2022-11-02",
      "has_results": true,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "Frederick, Maryland",
      "locations": [
        {
          "city": "Frederick",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05374317"
    },
    {
      "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": "2026-09-10T14:16:20.713Z",
      "location_count": 1,
      "location_summary": "Silver Spring, Maryland",
      "locations": [
        {
          "city": "Silver Spring",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04142086"
    }
  ]
}