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ClinicalTrials.gov public records Last synced May 22, 2026, 1:12 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Psychoses, Substance-Induced Clear all
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Schizophrenia, Drug Abuse/Dependency
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
2
States / cities
Baltimore, Maryland • Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced May 22, 2026, 1:12 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Cocaine Dependence, Cannabis Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 64 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Healthy
Interventions
Active Delta-9-THC, Active Pregnenolone, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced May 22, 2026, 1:12 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Premature Infant, Mental Health Issue (E.G., Depression, Psychosis, Personality Disorder, Substance Abuse), Development, Child, Parent-Child Relations
Interventions
Cognitive Behavioral Therapy
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced May 22, 2026, 1:12 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Opioid Use Disorder, Dual Diagnosis, Housing Problems, Mental Disorder in Adolescence, Risk Behavior, Homelessness
Interventions
Motivational Interviewing/Community Reinforcement Approach (MI/CRA), Strengths-Based Outreach and Advocacy (SBOA ), Services as Usual (SAU)
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
14 Years to 24 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Alcohol Dependence, Bipolar Disorder, Depression, Mania, Psychosis
Interventions
Lamotrigine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Alcohol Drinking, Alcohol-Related Disorders, Disease, Inflammation, Alcoholism, Cognitive Dysfunction, Pathologic Processes, Drinking Behavior, Substance-Related Disorders, Chemically-Induced Disorders, Mental Disorder, Cognition Disorder, Neurocognitive Disorders, Minocycline, Anti-Bacterial Agents, Anti-Infective Agents
Interventions
Minocycline, Sugar pill
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
25 Years to 65 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 30, 2023 · Synced May 22, 2026, 1:12 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Schizophrenia, Mood Disorders, Substance Dependence
Interventions
Behavioral Treatment for Substance Abuse in SPMI (BTSAS), Supportive Treatment in Addiction Recovery (STAR), Critical Time Intervention (CTI)
Behavioral
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 55 Years
Enrollment
293 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
4
States / cities
Baltimore, Maryland • Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 17, 2022 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder, Cannabis Use Disorder
Interventions
Dronabinol, Cannabis
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Jul 11, 2021 · Synced May 22, 2026, 1:12 AM EDT
Terminated Phase 4 Interventional
View directory record Official record
Conditions
Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder, Substance Abuse, Alcohol Abuse
Interventions
Clozapine versus typical (conventional) and atypical antipsychotic medications
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
19 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
1
States / cities
Jamaica Plain, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced May 22, 2026, 1:12 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Substance Abuse, Criminal Behavior, Mental Disorder
Interventions
mobile and technology assisted aftercare, Treatment as usual
Behavioral · Other
Lead sponsor
Florida State University
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Jun 4, 2023 · Synced May 22, 2026, 1:12 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Traumatic Brain Injury, Major Depressive Disorder, Bipolar Disorder, Schizophrenia, Attention Deficit Hyperactivity Disorder, Borderline Personality Disorder, Substance Use Disorders
Interventions
Transcranial Direct Current Stimulation
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 9, 2025 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Schizophrenia and Disorders With Psychotic Features, Tobacco Use Disorder
Interventions
Bupropion, Contingent reinforcement plus placebo, non-contingent reinforcement plus bupropion, Non-contingent reinforcement plus placebo
Drug
Lead sponsor
Brown University
Other
Eligibility
18 Years to 80 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 6, 2015 · Synced May 22, 2026, 1:12 AM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Psychosis, Cannabis Use, THC, Marijuana, Schizophrenia
Interventions
Placebo, Very Low Dose THC, Low Dose THC
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2026
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Cannabis Dependence
Interventions
Behavioral Intervention
Behavioral
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 65 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
Glen Oaks, New York • Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced May 22, 2026, 1:12 AM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Nicotine Dependence, Schizophrenia
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Schizophrenia, Cannabis Abuse, Cannabis Dependence, Dual Diagnosis
Interventions
Clozapine, Risperidone
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
9
States / cities
Garden Grove, California • Oakland, California • Miami, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated May 4, 2020 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Mental Disorder, Substance Use
Interventions
New Beginnings Program
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
9 Years to 12 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 1, 2011 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Tobacco Use Disorder, Schizophrenia
Interventions
smoking abstinence
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Apr 26, 2012 · Synced May 22, 2026, 1:12 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Psychotic Disorders, Substance Use
Interventions
Peer Approach to Substances in Early Psychosis Programs, Usual Care Peer Services
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
15 Years to 32 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
15
States / cities
Austin, Texas • Beaumont, Texas • Big Spring, Texas + 12 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced May 22, 2026, 1:12 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tobacco Dependence, Schizophrenia
Interventions
Sampling Research Cigarettes
Combination Product
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
CET/PT, Treatment as Usual
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 55 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 12, 2020 · Synced May 22, 2026, 1:12 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Schizophrenia, Dual Diagnosis, Psychotic Disorder, Cannabis Use Disorder
Interventions
Marijuana, Dronabinol, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
263 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
2
States / cities
Lebanon, New Hampshire • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced May 22, 2026, 1:12 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Cannabis, Psychotic Disorders
Interventions
THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced May 22, 2026, 1:12 AM EDT