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Showing 1–24 of 29 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Neuropsychiatric Syndrome Clear all
Not yet recruiting Phase 1Phase 2 Interventional

A Phase I/II, First-In-Human Trial to Evaluate the Safety, Tolerability, and Pharmacokinetic Activity to Prevent or Treat Neuropsychiatric Symptoms in Pediatric Subjects With Timothy Syndrome

NCT07600658
View directory record Official record
Conditions
CACNA1C
Interventions
TS1-ASO
Drug
Lead sponsor
Stanford University
Other
Eligibility
2 Months and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Recruiting No phase listed Observational

PEDI Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcus Study

NCT06811935
View directory record Official record
Conditions
PANS, PANDAS
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
3 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Lebanon, New Hampshire • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational

Neuropsychiatric Effects of Interferon-Alpha and Ribavirin

NCT00001547
View directory record Official record
Conditions
Mental Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 1:32 AM EDT
Enrolling by invitation No phase listed Observational

Blood-Brain Barrier Integrity and Immune Dynamics in Neuropsychiatric Sequelae of Post-SARS-CoV-2 Onset ME/CFS Versus Pre-Pandemic ME/CFS Patients

NCT07256795
View directory record Official record
Conditions
Chronic Fatigue Syndrome
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 70 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Recruiting No phase listed Observational

Patterns of Neurodevelopmental Disorders

NCT06213090
View directory record Official record
Conditions
Neurodevelopmental Disorders, Autism Spectrum Disorder, Pediatric Autoimmune Neuropsychiatric Disorder Associated With Streptococcal Infection, Pediatric Acute-Onset Neuropsychiatric Syndrome, Down Syndrome, Epilepsy, Mitochondrial Encephalomyopathies, Cerebral Folate Deficiency
Interventions
Not listed
Lead sponsor
Richard Frye
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational

Effects of HIV and Hepatitis C Virus on the Brain

NCT00494936
View directory record Official record
Conditions
HIV Infections, Hepatitis C
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years to 65 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 24, 2015 · Synced Jul 23, 2026, 1:32 AM EDT
Not listed Phase 4 Interventional

A Study to Evaluate the Benefit of Octagam 5%® in Subjects With Pediatric Acute-onset Neuropsychiatric Syndrome (PANS)

NCT03348618
View directory record Official record
Conditions
Pediatric Acute-Onset Neuropsychiatric Syndrome, Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infections
Interventions
IVIG
Biological
Lead sponsor
IMMUNOe Research Centers
Industry
Eligibility
4 Years to 16 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Centennial, Colorado • Papillion, Nebraska • Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Phase 4 Interventional

A Study to Investigate Behavioral and Other Co-Occurring Outcomes With Epidiolex as Add-On Therapy in Participants Aged 1 to 65 Years of Age With Tuberous Sclerosis Complex

NCT05864846
View directory record Official record
Conditions
Tuberous Sclerosis Complex Associated Neuropsychiatric Disease
Interventions
Cannabidiol Oral Solution [Epidiolex]
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
1 Year to 65 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
12
States / cities
Aurora, Colorado • New Haven, Connecticut • Gainesville, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Phase 1 Interventional

A Phase I Trial of Peptide T: Efficacy for the Neuropsychiatric Complications of Acquired Immunodeficiency Syndrome (AIDS).

NCT00000393
View directory record Official record
Conditions
HIV Infections, Cognition Disorders
Interventions
Peptide T
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1988
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 1, 2015 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A PET Brain Imaging Study of mGluR5 in Subjects With Neuropsychiatric Conditions

NCT00870974
View directory record Official record
Conditions
Parkinson Disease, Huntington Disease, Autistic Spectrum Disorders, Fragile X Syndrome, Alzheimer Disease, Mild Cognitive Impairment
Interventions
[18F]FPEB
Drug
Lead sponsor
Institute for Neurodegenerative Disorders
Other
Eligibility
18 Years to 85 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 5, 2017 · Synced Jul 23, 2026, 1:32 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Identifying Correlates of Brain Microglial Activation in Neuropsychiatric Syndromes: a Dimensional Approach

NCT03705715
View directory record Official record
Conditions
Neuropsychiatric Syndromes
Interventions
PET with radiotracer [11C]PBR-28 ( or [11C]ER176), Affective challenge
Drug · Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 80 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Phase 3 Interventional Results available

Phase III Study To Compare The Effect of Panzyga Versus Placebo in Patients With Pediatric Acute-onset Neuropsychiatric Syndrome (PANS/PANDAS)

NCT04508530
View directory record Official record
Conditions
Pediatric Acute-Onset Neuropsychiatric Syndrome
Interventions
Panzyga, Placebo
Biological · Other
Lead sponsor
Octapharma
Industry
Eligibility
6 Years to 17 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
7
States / cities
Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Brain Tissue Collection for Neuropathological Studies

NCT00001260
View directory record Official record
Conditions
Bipolar Disorder, Depression, Anxiety Disorders, Schizophrenia, Tourette's Syndrome, Brain Diseases
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
2,161 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1990 – 2017
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational

The Unhide™ Project: Economic Impact Study of IVIG Treatment for PANS

NCT06818656
View directory record Official record
Conditions
PANDAS, PANS, PANS Pediatric Acute-Onset Neuropsychiatric Syndrome, Pediatric Acute-onset Neuropsychiatric Syndrome (PANS), Pediatric Acute-Onset Neuropsychiatric Syndrome, Pediatric Autoimmune Neuropsychiatric Disorders Associated With Streptococcal Infections
Interventions
Not listed
Lead sponsor
Brain Inflammation Collaborative
Other
Eligibility
2 Years to 89 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
Delafield, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational

The Neuropsychiatric Evaluation of HIV-Positive and Negative Drug Using Individuals: Study 215

NCT01034800
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2009 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Not applicable Interventional

A Pilot rTMS Trial for Neuropsychiatric Symptoms of Long-COVID

NCT06586398
View directory record Official record
Conditions
Long Covid-19, PASC Post Acute Sequelae of COVID 19, Brain Fog, Fatigue
Interventions
rTMS
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

I-123 Brain Studies of Serotonin Metabolism in Psychiatric Patients and Normal Volunteers

NCT00001771
View directory record Official record
Conditions
Healthy, Mental Disorder, Obsessive Compulsive Disorder, Schizophrenia, Tourette Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Synbiotic Therapy for NP-PASC

NCT06620406
View directory record Official record
Conditions
Post-Acute COVID-19 Syndrome, Long COVID-19
Interventions
Synbiotic IVS-1, Maltodextrin
Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2025 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Not applicable Interventional Results available

CogT BEEM Study (a tDCS Study)

NCT04099524
View directory record Official record
Conditions
Mild Cognitive Impairment, Neuropsychiatric Syndrome
Interventions
tDCS
Device
Lead sponsor
University of Rochester
Other
Eligibility
60 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Jul 23, 2026, 1:32 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

TANDem-2: Closing the Gap to Interventions for TAND

NCT06879665
View directory record Official record
Conditions
Adult Caregivers of Individuals With TSC, Tuberous Sclerosis Complex (TSC)
Interventions
Well-Beans for Caregivers Program
Behavioral
Lead sponsor
Vrije Universiteit Brussel
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Jul 23, 2026, 1:32 AM EDT
Completed Not applicable Interventional

Remote Assessment and Intervention for Behavior Problems in Kids With TSC

NCT06311474
View directory record Official record
Conditions
Tuberous Sclerosis
Interventions
Parent-Child Interaction Therapy (PCIT)
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
3 Years to 6 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS)

NCT03507218
View directory record Official record
Conditions
Pediatric Acute-onset Neuropsychiatric Syndrome (PANS)
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
3 Years and older
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
8
States / cities
Tucson, Arizona • Stanford, California • Wilmington, Delaware + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 24, 2019 · Synced Jul 23, 2026, 1:32 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Electrophysiologic Sleep Phenotyping and Sleep-Dependent Neuro-maturation in Clinical and Healthy Pediatric Populations

NCT04639830
View directory record Official record
Conditions
Healthy Children, Children With Neurodevelopmental Disorders, Children With Neuropsychiatric Disorders, Children With Behavioral Syndromes
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
6 Months to 8 Years
Enrollment
244 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
5
States / cities
Bethesda, Maryland • Boston, Massachusetts • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jul 23, 2026, 1:32 AM EDT
Completed No phase listed Observational

Pediatric Acute-Onset Neuropsychiatric Syndrome (PANS): Clinical Characterization and Prospective Course

NCT04382716
View directory record Official record
Conditions
PANS, PANDAS
Interventions
No intervention
Other
Lead sponsor
University of Minnesota
Other
Eligibility
4 Years to 16 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 10, 2020 · Synced Jul 23, 2026, 1:32 AM EDT