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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: D-serine Clear all
Terminated Early Phase 1 Interventional Accepts healthy volunteers

AIH for Spinal Cord Repair

NCT03780829
View directory record Official record
Conditions
SCI
Interventions
hypoxia, sham hypoxia, D-cycloserine, sham-NMDA agonist, exercise training
Behavioral · Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Hines, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Lower Limb Function After Spinal Cord Injury

NCT02635893
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
D-Cycloserine, Placebo, Training, Stimulation, Placebo Stimulation
Drug · Other
Lead sponsor
Shirley Ryan AbilityLab
Other
Eligibility
18 Years to 85 Years
Enrollment
257 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 30, 2021 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 3 Interventional Results available

D-Serine Treatment of Negative Symptoms and Cognitive Deficits in Schizophrenia

NCT00237809
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
D-serine, Cognitive Retraining (CRT), Placebo, Cognitive Retraining Placebo
Drug · Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
104 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2012
U.S. locations
2
States / cities
New Haven, Connecticut • West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Sep 26, 2026, 7:42 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 26, 2026, 7:42 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 26, 2026, 7:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Food Exposure Therapy in Anorexia Nervosa

NCT00755820
View directory record Official record
Conditions
Anorexia Nervosa
Interventions
Exposure Therapy + D-Cycloserine, Exposure Therapy + Placebo, Supportive Psychotherapy
Behavioral
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 25, 2012 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 2 Interventional Results available

Sequential Therapy for the Treatment of Severe Bipolar Depression.

NCT02974010
View directory record Official record
Conditions
Bipolar Depression, Suicidal Ideas, Suicidal Ideation, Suicide, Attempted
Interventions
NRX-101 Oral Capsule, Lurasidone Oral Capsule, Ketamine Intravenous Infusion, Saline Solution Intravenous Infusion
Drug
Lead sponsor
NeuroRx, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
4
States / cities
Birmingham, Alabama • Fort Lauderdale, Florida • Charlotte, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated May 24, 2021 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 2 Interventional Results available

Fibrin Sealant for the Sealing of Dura Sutures

NCT00681824
View directory record Official record
Conditions
Pathological Processes in the Posterior Fossa, Dura Defects
Interventions
Fibrin Sealant, Vapor Heated, Solvent/Detergent-treated with 500 IU/mL thrombin and synthetic aprotinin (FS VH S/D 500 s-apr), Standard of care
Biological · Procedure
Lead sponsor
Baxter Healthcare Corporation
Industry
Eligibility
3 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
12
States / cities
Duarte, California • Sacramento, California • San Diego, California + 9 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2013 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin B6 Dependence of One-Carbon Metabolism

NCT00877812
View directory record Official record
Conditions
Vitamin B6 Deficiency
Interventions
Arm 1 glycine and leucine, Arm 2 Intervention of Serine and methionine infusion
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
20 Years to 40 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2013 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Dose Timing of D-Cycloserine to Augment CBT for Social Anxiety Disorder

NCT02066792
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
D-Cycloserine, Placebo, Cognitive Behavioral Therapy
Drug · Behavioral
Lead sponsor
Jasper A. Smits
Other
Eligibility
18 Years to 70 Years
Enrollment
152 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
3
States / cities
Chicago, Illinois • Boston, Massachusetts • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 26, 2026, 7:42 AM EDT
Not listed Early Phase 1 Interventional

Augmentation of Cognitive Training in Children With TBI With D-Cyloserine

NCT02312635
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
D-Cycloserine, Cogmed Working Memory Training
Drug · Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
11 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2014 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 2 Interventional Results available

D-Cycloserine and Cue Exposure in Cocaine-Dependent Individuals

NCT00780442
View directory record Official record
Conditions
Cocaine Use Disorders
Interventions
D-cycloserine, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 4 Interventional Results available

D-Cycloserine Enhancement of Exposure in Social Phobia

NCT00633984
View directory record Official record
Conditions
Social Anxiety Disorder
Interventions
Cognitive Behavioral Group Therapy (CBGT), D-Cycloserine, Placebo
Behavioral · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 13, 2014 · Synced Sep 26, 2026, 7:42 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Uncovering Neural and Immune Mechanisms of Chronic Pain in Post Treatment Lyme Syndrome

NCT02687165
View directory record Official record
Conditions
Post Treatment Lyme Syndrome (PTLS), Chronic Pain
Interventions
Milnacipran and D-cycloserine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 55 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 31, 2020 · Synced Sep 26, 2026, 7:42 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 26, 2026, 7:42 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

D-cycloserine Augmentation of Cognitive Behavioral Therapy (CBT) for Pediatric Obsessive-compulsive Disorder (OCD)

NCT01411774
View directory record Official record
Conditions
Obsessive-compulsive Disorder
Interventions
Cognitive-behavioral therapy, d-cycloserine, Pill placebo
Behavioral · Drug
Lead sponsor
University of South Florida
Other
Eligibility
7 Years to 17 Years
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
2
States / cities
St. Petersburg, Florida • Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Not applicable Interventional Results available

A Placebo-Controlled Trial of D-Cycloserine and Exposure Therapy for Combat-PTSD

NCT00371176
View directory record Official record
Conditions
Combat Disorders, Stress Disorders, Post-Traumatic
Interventions
Exposure therapy, D-Cycloserine, Placebo pill
Behavioral · Drug · Other
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 3, 2014 · Synced Sep 26, 2026, 7:42 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 26, 2026, 7:42 AM EDT
Completed Phase 3 Interventional Results available

Evaluating the Effectiveness of Aripiprazole and D-Cycloserine to Treat Symptoms Associated With Autism

NCT00198107
View directory record Official record
Conditions
Autistic Disorder
Interventions
Aripiprazole, Placebo, D-cycloserine
Drug
Lead sponsor
Indiana University
Other
Eligibility
5 Years to 17 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 1 Interventional Results available

A Study of LY2228820 in Participants With Advanced Cancer

NCT01393990
View directory record Official record
Conditions
Advanced Cancer
Interventions
LY2228820, Midazolam, Tamoxifen
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
2
States / cities
Rochester, Minnesota • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 23, 2020 · Synced Sep 26, 2026, 7:42 AM EDT
Active, not recruiting Phase 3 Interventional

Two Studies for Patients With Unfavorable Intermediate Risk Prostate Cancer Testing Less Intense Treatment for Patients With a Low Gene Risk Score and Testing a More Intense Treatment for Patients With a Higher Gene Risk Score, The Guidance Trial

NCT05050084
View directory record Official record
Conditions
Prostate Adenocarcinoma
Interventions
Bicalutamide, Buserelin, Darolutamide, Degarelix, Flutamide, Goserelin, Histrelin, Leuprolide, Radiation Therapy, Relugolix, Triptorelin
Drug · Radiation
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years and older · Male only
Enrollment
2,050 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
567
States / cities
Birmingham, Alabama • Gilbert, Arizona • Peoria, Arizona + 432 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 26, 2026, 7:42 AM EDT
Completed Phase 4 Interventional Results available

NMDA Antagonists in Bipolar Depression

NCT01833897
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Standard of Care, Ketamine, D-cycloserine
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 31, 2016 · Synced Sep 26, 2026, 7:42 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 26, 2026, 7:42 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 26, 2026, 7:42 AM EDT