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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Encephalitis Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of Eastern Equine Encephalitis (EEE) Vaccine

NCT00584805
View directory record Official record
Conditions
Eastern Equine Encephalitis
Interventions
Inactivated, Dried, TSI-GSD 104, EEE
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 65 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2017
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 23, 2019 · Synced Jul 22, 2026, 12:53 AM EDT
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity Study of Venezuelan Equine Encephalomyelitis (VEE) Vaccine as Booster Vaccine in Adults

NCT03531242
View directory record Official record
Conditions
Venezuelan Equine Encephalomyelitis
Interventions
0.5 mL Inactivated, Dried, C-84, TSI-GSD 205, Lot 7, Run 1
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 65 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 15, 2021 · Synced Jul 22, 2026, 12:53 AM EDT
Terminated No phase listed Observational

Prevalence of Pathogens in Cerebrospinal Fluid Obtained From Emergency Department Patients

NCT02207647
View directory record Official record
Conditions
Meningoencephalitis, Other Syndromes Requiring Lumbar Puncture in Emergency Department
Interventions
no intervention
Other
Lead sponsor
Olive View-UCLA Education & Research Institute
Other
Eligibility
3 Months and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Jul 22, 2026, 12:53 AM EDT
Terminated Phase 2 Interventional Results available

A Study to Test the Efficacy, Safety, and Pharmacokinetics of Rozanolixizumab in Adult Study Participants With Leucine-Rich Glioma Inactivated 1 Autoimmune Encephalitis

NCT04875975
View directory record Official record
Conditions
Leucine-Rich Glioma Inactivated 1 Autoimmune Encephalitis
Interventions
Rozanolixizumab, Placebo
Drug
Lead sponsor
UCB Biopharma SRL
Industry
Eligibility
18 Years to 89 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
9
States / cities
Aurora, Colorado • Jacksonville, Florida • Boston, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Jul 22, 2026, 12:53 AM EDT
Completed No phase listed Observational

Risk Factors and Outcomes of Immune-Mediated Encephalitis Following Exposure to Nivolumab

NCT02856451
View directory record Official record
Conditions
Encephalitis
Interventions
Nivolumab
Biological
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
Not listed
Enrollment
486 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Princeton, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Jul 22, 2026, 12:53 AM EDT
Completed No phase listed Observational

Natural History of West Nile Virus Infection

NCT00069303
View directory record Official record
Conditions
West Nile Virus, Encephalitis, Myelitis
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 12:53 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Safety, Reactogenicity and Immunogenicity of a Venezuelan Equine Encephalitis DNA Vaccine Candidate Administered by Jet Injection

NCT06002503
View directory record Official record
Conditions
Vaccine Reaction
Interventions
Venezuelan Equine Encephalitis DNA Vaccine, PharmaJet Stratis Needle-free Injection System, PharmaJet Tropis Needle-free Injection System
Drug · Device
Lead sponsor
PharmaJet, Inc.
Industry
Eligibility
18 Years to 49 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 23, 2024 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Vaccine to Prevent West Nile Virus Disease

NCT00106769
View directory record Official record
Conditions
Healthy, West Nile Fever, Healthy Volunteer, HV
Interventions
VRC-WNVDNA017-00-VP
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 12:53 AM EDT
Terminated Not applicable Interventional

An Exercise Intervention to Reduce Neuropathic Pain and Brain Inflammation After Spinal Cord Injury

NCT04137159
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Functional Electrical Stimulation rowing exercise
Other
Lead sponsor
Spaulding Rehabilitation Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety Study of ChimeriVax™-JE Vaccine to Prevent Japanese Encephalitis.

NCT00314132
View directory record Official record
Conditions
Encephalitis, Japanese Encephalitis
Interventions
ChimeriVax-JE, Japanese Encephalitis vaccine, 0.9% Saline
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
2,004 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
16
States / cities
Burbank, California • Costa Mesa, California • Davis, California + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 5, 2012 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of ChimeriVax West Nile Vaccine in Healthy Adults

NCT00746798
View directory record Official record
Conditions
West Nile Fever
Interventions
ChimeriVax-WN02 vaccine, Placebo
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
50 Years and older
Enrollment
479 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
15
States / cities
Anaheim, California • Colorado Springs, Colorado • South Miami, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 2, 2015 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 3 Interventional Results available

Long Term Treatment of Herpes Simplex Encephalitis (HSE) With Valacyclovir

NCT00031486
View directory record Official record
Conditions
Encephalitis
Interventions
Valacyclovir, Placebo
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2011
U.S. locations
13
States / cities
Birmingham, Alabama • Phoenix, Arizona • Sacramento, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2012 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional

MCLENA-1: A Clinical Trial for the Assessment of Lenalidomide in Amnestic MCI Patients

NCT04032626
View directory record Official record
Conditions
Cognitive Impairment, Mild, Cognitive Dysfunction, Amyloid Plaque, Neurodegeneration, Inflammation, Brain
Interventions
Lenalidomide 10 mg, Placebo
Drug
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
50 Years to 89 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Phoenix, Arizona • Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional

A Study to Learn About the Safety of BIIB091 and Its Effect on Brain Inflammation When Taken Alone or With Diroximel Fumarate (DRF) in Adults With Relapsing Forms of Multiple Sclerosis (MS)

NCT05798520
View directory record Official record
Conditions
Relapsing Forms of Multiple Sclerosis
Interventions
BIIB091, DRF, Placebo
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years
Enrollment
127 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
23
States / cities
Scottsdale, Arizona • Berkeley, California • Orange, California + 20 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jul 22, 2026, 12:53 AM EDT
Active, not recruiting Phase 2 Interventional

Autologous Stem Cell Transplant for Neurologic Autoimmune Diseases

NCT00716066
View directory record Official record
Conditions
Autoimmune Disease, Neurologic Autoimmune Disease, Autologous Transplant Autoimmune, Multiple Sclerosis Transplant, MS Stem Cell Transplant, Multiple Sclerosis Stem Cell Transplant, Stiff Person Syndrome, HCT for Neurologic Autoimmune Disorders, CIDP Transplant, Myasthenia Gravis Transplant, Autoimmune Nervous System Disorder, Central Nervous System Vasculitis, Cerebellar Degeneration, Chronic Inflammatory Demyelinating Polyneuropathy, Lambert Eaton Myasthenic Syndrome, Myasthenia Gravis, Neuromyelitis Optica, Opsoclonus Myoclonus Syndrome, Rasmussen Subacute Encephalitis
Interventions
Anti-Thymocyte Globulin, Autologous Hematopoietic Stem Cell Transplantation, Carmustine, Cytarabine, Etoposide, Laboratory Biomarker Analysis, Melphalan, Peripheral Blood Stem Cell Transplantation, Prednisone, Syngeneic Bone Marrow Transplantation
Biological · Procedure · Drug + 1 more
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
Up to 71 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2030
U.S. locations
3
States / cities
Denver, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jul 22, 2026, 12:53 AM EDT
Completed No phase listed Observational

Role of Inflammation in Progressive Multifocal Leukoencephalopathy (PML)

NCT01132053
View directory record Official record
Conditions
Progressive Multifocal Leukoencephalopathy
Interventions
Not listed
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Not applicable Interventional Results available

tDCS and Cognition in Adults With Multiple Sclerosis or Encephalitis

NCT02538094
View directory record Official record
Conditions
Multiple Sclerosis, Encephalitis
Interventions
Sham Transcranial direct current stimulation, Anodal Transcranial direct current stimulation
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 5, 2020 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Safety and Efficacy Study of Two Japanese Encephalitis Vaccines ChimeriVaxTM-JE and JE-VAX

NCT00319592
View directory record Official record
Conditions
Japanese Encephalitis
Interventions
ChimeriVax™-JE vaccine, JE-VAX® vaccine
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 48 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 19, 2012 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Safety and Immunogenicity Study of the Eastern Equine Encephalitis (EEE) Vaccine

NCT02654509
View directory record Official record
Conditions
Eastern Equine Encephalitis
Interventions
Eastern Equine Encephalitis Vaccine, Inactivated, Dried, TSI-GSD 104
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 65 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 16, 2020 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

VRC 313: A Trivalent Virus-like Particle (VLP) Encephalitis Vaccine (WEVEE) in Healthy Adults

NCT03879603
View directory record Official record
Conditions
Venezuelan Equine Encephalitis, Western Equine Encephalitis, Eastern Equine Encephalitis, Alphavirus Infections
Interventions
VRC-WEVVLP073-00-VP, VRC-GENMIX083-AL-VP
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Jul 22, 2026, 12:53 AM EDT
Completed No phase listed Observational

Structure of the Herpes Simplex Virus Receptor

NCT00001648
View directory record Official record
Conditions
Encephalitis, Herpes Simplex, Keratitis, Mouth Disease, Skin Disease
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Not applicable Interventional

Toxoplasmic Encephalitis in Patients With AIDS. Treatment and Prevention of Relapse

NCT00002064
View directory record Official record
Conditions
Toxoplasmosis, Cerebral, HIV Infections
Interventions
Pyrimethamine, Clindamycin
Drug
Lead sponsor
Palo Alto Medical Foundation
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 22, 2026, 12:53 AM EDT
Completed Phase 2 Interventional

Omr-IgG-am(Trademark) for Treating Patients With or at High Risk for West Nile Virus Disease

NCT00069316
View directory record Official record
Conditions
West Nile Virus
Interventions
Omr-IgG-am
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 12:53 AM EDT
Recruiting No phase listed Observational

Recovery Trajectory for Coma and Disorders of Consciousness

NCT07614074
View directory record Official record
Conditions
Coma, Disorders of Consciousness, Cardiac Arrest (CA), Traumatic Brain Injuries, Ischemic Stroke, Hemorrhagic Stroke, Intracerebral, Meningitis/Encephalitis, Status Epilepticus
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2033
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 22, 2026, 12:53 AM EDT