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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: d-cycloserine Clear all
Completed Not applicable Interventional

D-Cycloserine to Enhance Extinction to Alcohol Cues

NCT01362309
View directory record Official record
Conditions
Alcohol Use Disorders.
Interventions
d-cycloserine.
Drug
Lead sponsor
University of Georgia
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 18, 2014 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2 Interventional Results available

NMDA Receptors in Motor Learning in Humans

NCT02082912
View directory record Official record
Conditions
Stroke
Interventions
D-cycloserine, Placebo, HandMentor Pro
Drug · Other · Device
Lead sponsor
Emory University
Other
Eligibility
18 Years to 95 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 6, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Available No phase listed Expanded access

NRX-101 Expanded Access

NCT05779267
View directory record Official record
Conditions
Treatment-Resistant Depression
Interventions
NRX-101, Transcranial Magnetic Stimulation Sham
Drug · Device
Lead sponsor
NeuroRx, Inc.
Industry
Eligibility
18 Years and older
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Enhancing Panic and Smoking Reduction Treatment With D-Cycloserine

NCT01944423
View directory record Official record
Conditions
Nicotine Addiction, Panic Attack
Interventions
d-cycloserine, Pill Placebo, Nicotine replacement therapy, Panic and Smoking Reduction Treatment
Drug · Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Not applicable Interventional Results available

Augmentation of Brief Habit Reversal Training With D-cycloserine or Placebo

NCT02582515
View directory record Official record
Conditions
Tourette Disorder, Chronic Tic Disorder
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
8 Years to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 3 Interventional

Safety and Effectiveness of D-Cycloserine in Children With Autism

NCT00198120
View directory record Official record
Conditions
Autistic Disorder
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
3 Years to 12 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 11, 2016 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2 Interventional Results available

D-Cycloserine Facilitation of Cocaine - Cue Extinction

NCT00759473
View directory record Official record
Conditions
Cocaine Use Disorders
Interventions
D-Cycloserine (DCS), Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Charleston, South Carolina • Pickens, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2016 · Synced Sep 17, 2026, 7:15 AM EDT
Terminated Phase 2 Interventional Results available

Efficacy of D-Cycloserine for Enhancing the Effects of CBT for Substance Use

NCT00430573
View directory record Official record
Conditions
Substance-Related Disorders
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 70 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 16, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Withdrawn Early Phase 1 Interventional

D-cycloserine Augmented Treatment for Youth With Tic Disorders

NCT04357951
View directory record Official record
Conditions
Tourette Syndrome
Interventions
d-cycloserine, Placebo pill, Behavior Therapy
Drug · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
8 Years to 17 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 13, 2023 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 3 Interventional Results available

A Randomized Controlled Trial of Cognitive Remediation and D-cycloserine for Individuals With Bipolar Disorder

NCT01934972
View directory record Official record
Conditions
Bipolar Disorder
Interventions
CR + DCS (D-cycloserine), CR + placebo
Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 15, 2020 · Synced Sep 17, 2026, 7:15 AM EDT
Not listed Phase 2 Interventional

The Use of D-Cycloserine to Augment CBT for Pediatric OCD

NCT01687140
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
D-Cycloserine, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
7 Years to 17 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 17, 2012 · Synced Sep 17, 2026, 7:15 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Medication Enhanced Rapid Therapy

NCT02099825
View directory record Official record
Conditions
Anxiety Disorders
Interventions
d-cycloserine and mifepristone
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 25, 2023 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2 Interventional Results available

D-cycloserine: A Novel Treatment for Gulf War Illness (GWDCS)

NCT02983734
View directory record Official record
Conditions
Gulf War Illness
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
43 Years to 85 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

fMRI Study Examining Effects of D-cycloserine in Specific Phobia

NCT00591825
View directory record Official record
Conditions
Phobias
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Not applicable Interventional Results available

Cognitive Enhancement and Relapse Prevention in Cocaine Addiction

NCT01067846
View directory record Official record
Conditions
Cocaine Addiction
Interventions
Seromycin (D-cycloserine, DCS), Placebo, Computerized Cognitive Behavioral Therapy
Drug · Behavioral
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2Phase 3 Interventional

NRX101 Glx Biomarker Validation Study

NCT03402152
View directory record Official record
Conditions
Bipolar Depression, Suicidal Ideation
Interventions
NRX-101, Lurasidone HCl, Placebo
Drug
Lead sponsor
NeuroRx, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Sep 17, 2026, 7:15 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Effect of D-cycloserine on a Short Imagery Rescripting Intervention for Subclinical PTSD

NCT03216356
View directory record Official record
Conditions
PTSD
Interventions
CBT + ImRs, CBT + I.E., D-Cycloserine, Placebo, Study Pill
Behavioral · Drug
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 3 Interventional Results available

Effect of D-cycloserine Plus Cognitive Behavioral Therapy on People With Social Phobia

NCT00515879
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
D-cycloserine, Cognitive behavioral therapy (CBT), Placebo
Drug · Behavioral
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 25, 2019 · Synced Sep 17, 2026, 7:15 AM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

D-cycloserine (DCS) Pretreatment + CBT + Nicotine Replacement Therapy for Smoking Cessation (DCS)

NCT01842334
View directory record Official record
Conditions
Nicotine Dependence, Smoking Cessation
Interventions
Cognitive Behavioral Therapy, Nicotine Replacement Therapy
Behavioral · Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 2 Interventional Results available

Exposure, D-Cycloserine Enhancement, and Genetic Modulators in Panic Disorder

NCT00790868
View directory record Official record
Conditions
Panic Disorder
Interventions
d-cycloserine, placebo
Drug
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 80 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
4
States / cities
Hartford, Connecticut • Chicago, Illinois • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 6, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Terminated Phase 2 Interventional Results available

D-cycloserine for the Treatment of Chronic, Refractory Low Back Pain

NCT03535688
View directory record Official record
Conditions
Low Back Pain, Pain
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 17, 2026, 7:15 AM EDT
Withdrawn Phase 2 Interventional

D-Cycloserine and Virtual Reality Exposure Therapy

NCT02933684
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
Seromycin, Virtual Reality Exposure Therapy, Placebo
Drug · Behavioral
Lead sponsor
Georgia State University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 12, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Not applicable Interventional Results available

D-cycloserine Augmentation of Cognitive Remediation in Schizophrenia

NCT00963924
View directory record Official record
Conditions
Schizophrenia
Interventions
D-cycloserine, Placebo, Cognitive Remediation
Drug · Behavioral
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 5, 2018 · Synced Sep 17, 2026, 7:15 AM EDT
Completed Phase 4 Interventional Results available

Effects of Weekly Dosing of D-cycloserine on Cognitive Function in Individuals With Schizophrenia

NCT00455702
View directory record Official record
Conditions
Schizophrenia
Interventions
d-cycloserine
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Sep 17, 2026, 7:15 AM EDT