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ClinicalTrials.gov public records Last synced May 22, 2026, 5:19 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.
Local D1 index available.
Filters: Condition: Substance Withdrawal Clear all
Completed Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Nicotine Withdrawal, Marijuana Dependence, Cannabis Dependence, Nicotine Dependence, Cannabis Abuse
Interventions
Placebo Aprepitant, Active Aprepitant
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 45 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 31, 2012 · Synced May 22, 2026, 5:19 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Nicotine lozenge
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 20, 2017 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Opioid-Related Disorders, Dependency (Psychology), Pain, Chronic, Opiate Withdrawal Syndrome
Interventions
Buspirone oral capsule, Placebo oral capsule
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced May 22, 2026, 5:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Substance-Related Disorders
Interventions
Palonosetron, Hydroxyzine, Placebo
Drug · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 35 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2Phase 3 Interventional Results available
View directory record Official record
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Nabilone, Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 31, 2018 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Alcohol Withdrawal
Interventions
intranasal oxytocin spray, intranasal spray without oxytocin
Drug · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated May 12, 2014 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Cocaine Dependence, Cocaine Withdrawal
Interventions
controlled release carvedilol, Placebo
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jul 30, 2015 · Synced May 22, 2026, 5:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Withdrawal Symptoms
Interventions
SSB withdrawal
Behavioral
Lead sponsor
University of California, Berkeley
Other
Eligibility
13 Years to 18 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2014 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid Dependence
Interventions
Isradipine, Placebo
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Nicotine Dependence, Nicotine Withdrawal
Interventions
Progesterone, Placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 4, 2022 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tobacco Dependence, Withdrawal Symptoms, Smoking Cessation
Interventions
1.0mg Varenicline b.i.d., 0.5mg Varenicline b.i.d., 0.0mg placebo Varenicline b.i.d.
Drug
Lead sponsor
Arizona State University
Other
Eligibility
21 Years and older
Enrollment
313 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
2
States / cities
Phoenix, Arizona • Burbank, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid Abuse, Opioid Dependence
Interventions
buprenorphine, morphine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 2, 2017 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Cannabis Dependence, Alcohol Dependence, Cannabis Use Disorder, Alcohol Use Disorder
Interventions
aprepitant, Placebo, Manual-guided behavioral counseling
Drug · Behavioral
Lead sponsor
The Scripps Research Institute
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced May 22, 2026, 5:19 AM EDT
Recruiting Phase 2 Interventional
View directory record Official record
Conditions
Opioid Withdrawal, Opioid Use Disorder, Opioid Craving
Interventions
Hydromorphone, Naloxone + lofexidine pretreatment, Naloxone + placebo pretreatment, Lofexidine
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid Withdrawal
Interventions
Dexmedetomidine, Placebo
Drug
Lead sponsor
BioXcel Therapeutics Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
3
States / cities
Miami Lakes, Florida • Marlton, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 25, 2023 · Synced May 22, 2026, 5:19 AM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Cervical transcutaneous vagus nerve stimulation (active comparator), Cervical transcutaneous vagus nerve stimulation (sham comparator)
Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional Results available
View directory record Official record
Conditions
Opioid Dependence, Opioid Withdrawal
Interventions
Intranasal Oxytocin Spray, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
21 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 6, 2019 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Alcoholism
Interventions
gabapentin (Neurontin), lorazepam (Ativan)
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years to 70 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 22, 2006 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Smoking Cessation, Tobacco Use Disorder
Interventions
nicotine transdermal system
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2005
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 2Phase 3 Interventional Results available
View directory record Official record
Conditions
Alcohol Dependence
Interventions
Flumazenil and Gabapentin, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced May 22, 2026, 5:19 AM EDT
Recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Tobacco Use, Smoking Cessation, Smoking Behaviors, Nicotine Dependence, Nicotine Withdrawal
Interventions
Nicotine Replacement Therapy (NRT) Sampling, Practice Quitting (PQ) Counseling, Motivational Interviewing (MI) Counseling
Drug · Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
780 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced May 22, 2026, 5:19 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Opioid Use Disorder, Opioid Withdrawal
Interventions
BXCL501 (180 micrograms), BXCL501 (240 micrograms), Placebo, Lofexidine (Positive Control)
Drug · Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
4
States / cities
New Haven, Connecticut • Eatontown, New Jersey • Marlton, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced May 22, 2026, 5:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
THC, Cannabis, Cannabis Smoking, Cannabis Use, Unspecified, Cigarette Smoking, Tobacco Use, Nicotine Dependence, Nicotine Withdrawal, Cardiovascular Risk Factor
Interventions
Smoked Cannabis, Vaped Cannabis, Tobacco Cigarette
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2024 · Synced May 22, 2026, 5:19 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Tobacco Use Disorder
Interventions
Very low nicotine content cigarettes
Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
775 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
Baltimore, Maryland • Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced May 22, 2026, 5:19 AM EDT