{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Encephalitis%2C+Viral",
    "query": {
      "condition": "Encephalitis, Viral"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 68,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Encephalitis%2C+Viral&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T09:32:52.742Z",
  "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": "NCT00001048",
      "title": "Comparison of Anti HIV Drugs Used Alone or in Combination With Cytosine Arabinoside to Treat Progressive Multifocal Leukoencephalopathy (PML) in HIV-Infected Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections",
        "Leukoencephalopathy, Progressive Multifocal"
      ],
      "interventions": [
        {
          "name": "Filgrastim",
          "type": "DRUG"
        },
        {
          "name": "Cytarabine",
          "type": "DRUG"
        },
        {
          "name": "Zidovudine",
          "type": "DRUG"
        },
        {
          "name": "Zalcitabine",
          "type": "DRUG"
        },
        {
          "name": "Didanosine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 90,
      "start_date": null,
      "completion_date": "1997-04",
      "has_results": false,
      "last_update_posted_date": "2021-11-01",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 9,
      "location_summary": "Aurora, Colorado • Miami, Florida • Chicago, Illinois + 6 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001048"
    },
    {
      "nct_id": "NCT01923376",
      "title": "Hepatic Encephalopathy: Lactulose or Polyethylene Glycol (H.E.L.P.)",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatic Encephalopathy",
        "HE",
        "Cirrhosis",
        "Altered Mental Status",
        "AMS"
      ],
      "interventions": [
        {
          "name": "Lactulose",
          "type": "DRUG"
        },
        {
          "name": "Polyethylene Glycol 3350",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "New York Presbyterian Brooklyn Methodist Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2013-02",
      "completion_date": "2014-02",
      "has_results": false,
      "last_update_posted_date": "2015-05-12",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01923376"
    },
    {
      "nct_id": "NCT00000674",
      "title": "A Pilot Study of Oral Clindamycin and Pyrimethamine for the Treatment of Toxoplasmic Encephalitis in Patients With AIDS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Toxoplasmosis, Cerebral",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Pyrimethamine",
          "type": "DRUG"
        },
        {
          "name": "Leucovorin calcium",
          "type": "DRUG"
        },
        {
          "name": "Clindamycin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 30,
      "start_date": null,
      "completion_date": "1992-08",
      "has_results": false,
      "last_update_posted_date": "2012-05-18",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 13,
      "location_summary": "Los Angeles, California • Palo Alto, California • San Diego, California + 8 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000674"
    },
    {
      "nct_id": "NCT02910037",
      "title": "Precision Diagnosis of Acute Infectious Diseases; Neuroinflammatory Cohort",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Encephalitis",
        "Meningitis"
      ],
      "interventions": [
        {
          "name": "mNGS for pathogen detection",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Minute",
        "maximum_age": "110 Years",
        "sex": "ALL",
        "summary": "1 Minute to 110 Years"
      },
      "enrollment_count": 214,
      "start_date": "2016-06-01",
      "completion_date": "2017-07-31",
      "has_results": true,
      "last_update_posted_date": "2021-05-27",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 7,
      "location_summary": "Davis, California • Los Angeles, California • San Francisco, California + 3 more",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02910037"
    },
    {
      "nct_id": "NCT04131595",
      "title": "Vaccination Trial of a Recombinant MVA-BN-WEV Vaccine in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Equine Encephalitis"
      ],
      "interventions": [
        {
          "name": "MVA-BN-WEV Dose 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MVA-BN-WEV Dose 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MVA-BN-WEV Dose 3",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Bavarian Nordic",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 45,
      "start_date": "2019-10-07",
      "completion_date": "2020-07-22",
      "has_results": false,
      "last_update_posted_date": "2020-08-20",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Lenexa, Kansas",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04131595"
    },
    {
      "nct_id": "NCT00300417",
      "title": "Phase I Study of West Nile Virus Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "West Nile Fever"
      ],
      "interventions": [
        {
          "name": "VRC-WNVDNA020-00-VP",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2006-03-03",
      "completion_date": "2007-12-28",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00300417"
    },
    {
      "nct_id": "NCT00002395",
      "title": "Safety and Effectiveness of Topotecan HCl to Treat HIV-Infected Patients With AIDS-Related Progressive Multifocal Leukoencephalopathy (PML)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections",
        "Leukoencephalopathy, Progressive Multifocal"
      ],
      "interventions": [
        {
          "name": "Topotecan",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "SmithKline Beecham",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 54,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • San Francisco, California • Miami, Florida + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Albany",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002395"
    },
    {
      "nct_id": "NCT00319592",
      "title": "A Safety and Efficacy Study of Two Japanese Encephalitis Vaccines ChimeriVaxTM-JE and JE-VAX",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Japanese Encephalitis"
      ],
      "interventions": [
        {
          "name": "ChimeriVax™-JE vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "JE-VAX® vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "48 Years",
        "sex": "ALL",
        "summary": "18 Years to 48 Years"
      },
      "enrollment_count": 60,
      "start_date": "2005-05",
      "completion_date": "2006-09",
      "has_results": true,
      "last_update_posted_date": "2012-08-20",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Lenexa, Kansas",
      "locations": [
        {
          "city": "Lenexa",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00319592"
    },
    {
      "nct_id": "NCT03776994",
      "title": "Venezuelan Equine Encephalitis Monovalent Virus-Like Particle Vaccine",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Encephalitis",
        "Encephalitis, Viral",
        "Infectious Encephalitis",
        "Virus Diseases",
        "Encephalomyelitis, Venezuelan Equine",
        "Brain Diseases",
        "Central Nervous System Diseases",
        "Central Nervous System Viral Diseases",
        "Alphavirus Infections",
        "Togaviridae Infections",
        "RNA Virus Infections",
        "Central Nervous System Infections",
        "Encephalomyelitis",
        "Physiological Effects of Drugs",
        "Vaccines",
        "Encephalomyelitis, Equine",
        "Nervous System Diseases"
      ],
      "interventions": [
        {
          "name": "Vaccinations on Day 0, Day 28, and Day 140",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "SRI International",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 48,
      "start_date": "2018-07-17",
      "completion_date": "2021-04",
      "has_results": false,
      "last_update_posted_date": "2021-02-23",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Plymouth, Michigan",
      "locations": [
        {
          "city": "Plymouth",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03776994"
    },
    {
      "nct_id": "NCT00106769",
      "title": "Vaccine to Prevent West Nile Virus Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "West Nile Fever",
        "Healthy Volunteer",
        "HV"
      ],
      "interventions": [
        {
          "name": "VRC-WNVDNA017-00-VP",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 15,
      "start_date": "2005-03-22",
      "completion_date": "2008-01-15",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-07-23T09:32:52.742Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00106769"
    }
  ]
}