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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: CBD Clear all
Completed Phase 4 Interventional Results available

Parcopa Versus Carbidopa-levodopa in a Single Dose Cross-over Comparison Study

NCT00590122
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Parcopa, carbidopa-levodopa (Sinemet)
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
31 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 13, 2023 · Synced Jul 22, 2026, 5:05 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy of Cannabidiol (CBD) for Symptoms of PTSD in Adults

NCT05269459
View directory record Official record
Conditions
PTSD
Interventions
Cannabidiol Administered as Nantheia ATL5, Placebo
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
21 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 22, 2026, 5:05 PM EDT
Recruiting Phase 1 Interventional

CBD for Breast Cancer Primary Tumors

NCT06148038
View directory record Official record
Conditions
Breast Cancer
Interventions
CBD Oral, Control
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 2 Interventional Results available

Acute and Short-term Effects of CBD on Cue-induced Craving in Drug-abstinent Heroin-dependent Humans

NCT02539823
View directory record Official record
Conditions
Opiate Addiction
Interventions
CBD 400 mg, CBD 800 mg, Control (placebo)
Drug
Lead sponsor
Hurd,Yasmin, Ph.D.
Individual
Eligibility
21 Years to 65 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2022 · Synced Jul 22, 2026, 5:05 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Effects of CBD Products on Anxiety Among U.S. Women

NCT05108220
View directory record Official record
Conditions
Anxiety, Generalized Anxiety Disorder
Interventions
Cannabidiol (CBD)- containing consumer products
Dietary Supplement
Lead sponsor
Radicle Science
Industry
Eligibility
24 Years to 44 Years · Female only
Enrollment
1,350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Jul 22, 2026, 5:05 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

A Study to Assess RAD011 (Cannabidiol Oral Solution) for the Treatment of Participants With Prader-Willi Syndrome

NCT05098509
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
RAD011, Placebo
Drug
Lead sponsor
Radius Pharmaceuticals, Inc.
Industry
Eligibility
8 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
8
States / cities
Los Angeles, California • San Diego, California • Iowa City, Iowa + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2023 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 1Phase 2 Interventional

NE3107 Activity and Safety in Patients With Parkinson's Disease Using Levodopa

NCT05083260
View directory record Official record
Conditions
Parkinson Disease
Interventions
NE3107, placebo
Drug
Lead sponsor
BioVie Inc.
Industry
Eligibility
30 Years to 80 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
16
States / cities
Englewood, Colorado • Boca Raton, Florida • Hallandale, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 2 Interventional Results available

High and Low Dose Carbidopa Treatment of Parkinson's Disease

NCT01399905
View directory record Official record
Conditions
Parkinson's Disease
Interventions
carbidopa
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
35 Years to 85 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 8, 2020 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 1 Interventional Results available

University of Alabama at Birmingham (UAB) Pediatric CBD Program

NCT02695537
View directory record Official record
Conditions
Epilepsy, Seizures
Interventions
Epidiolex
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Year to 19 Years
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 9, 2020 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 4 Interventional

Epidiolex® for Anxiety in Pediatric Epilepsy

NCT05324449
View directory record Official record
Conditions
Anxiety, Epilepsy
Interventions
Cannabidiol 100 MG/ML
Drug
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
6 Years to 17 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Jul 22, 2026, 5:05 PM EDT
Not listed Phase 2 Interventional

Sublingual Tablets With Cannabinoid Combinations for the Treatment of Dysmenorrhea

NCT04091789
View directory record Official record
Conditions
Dysmenorrhea, Headache, Migraine, Fatigue, Nausea, Mood Disturbance
Interventions
Pure Femme Tablets
Drug
Lead sponsor
Pure Green
Industry
Eligibility
21 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Sterling Heights, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced Jul 22, 2026, 5:05 PM EDT
Not yet recruiting Phase 1 Interventional

Topical CBD Scar Healing Study

NCT06129591
View directory record Official record
Conditions
Paramedian Forehead Flap
Interventions
Vantage Hemp CBD Isolate + Silicone patch, Silicone patch
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 2 Interventional Results available

Laboratory Study of Cannabidiol on the Effects of Smoked Marijuana

NCT01844687
View directory record Official record
Conditions
Smoking, Marijuana
Interventions
CBD
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
3
States / cities
Lexington, Kentucky • New York, New York • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

This Research Study Examines the Effects of Cannabidiol-infused Candy on Reducing the Bacteria Causing Tooth Decay, When Comparing it to a Sugar Free Candy on Adults.

NCT06301113
View directory record Official record
Conditions
Tooth Decay
Interventions
CBD infused candy, Sugar free Candy
Dietary Supplement
Lead sponsor
West Coast University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Mar 7, 2024 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 3 Interventional Results available

Phase 3 Trial of Cannabidiol (CBD; GWP42003-P) for Infantile Spasms: Open-label Extension Phase (GWPCARE7)

NCT02954887
View directory record Official record
Conditions
Infantile Spasms
Interventions
GWP42003-P
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
1 Month to 24 Months
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
5
States / cities
Little Rock, Arkansas • Winston-Salem, North Carolina • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2022 · Synced Jul 22, 2026, 5:05 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

The Study of Hemp Oil CBD for Evaluation of Efficacy and Safety in Treatment of Pain, Anxiety and Insomnia Management

NCT04729244
View directory record Official record
Conditions
CBD, Pain, Chronic, Anxiety, Insomnia, Opioid Use
Interventions
CBD
Drug
Lead sponsor
Advanced Pain and Rehab Specialists
Other
Eligibility
18 Years to 90 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hermitage, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Jul 22, 2026, 5:05 PM EDT
Recruiting Phase 2 Interventional

Mechanisms of Cannabidiol in Persons With MS: the Role of Sleep and Pain Phenotype

NCT05269628
View directory record Official record
Conditions
Multiple Sclerosis, Sleep, Pain
Interventions
Cannabidiol (CBD), Tetrahydrocannabinol (THC), Placebo CBD, Placebo THC
Drug
Lead sponsor
Tiffany J. Braley, MD, MS
Other
Eligibility
18 Years to 65 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Safety and Tolerability of ABBV-951 in Subjects With Parkinson's Disease (PD)

NCT03781167
View directory record Official record
Conditions
Parkinson's Disease (PD)
Interventions
ABBV-951
Drug
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
244 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
24
States / cities
Birmingham, Alabama • Sun City, Arizona • Fountain Valley, California + 21 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2023 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 1Phase 2 Interventional

An Exploratory Study of XP21279 (With Lodosyn®) and Sinemet® in Parkinson's Disease Subjects

NCT00914602
View directory record Official record
Conditions
Parkinson's Disease
Interventions
Sinemet 25-100 Oral Tablet, XP21279, Carbidopa Pill
Drug
Lead sponsor
XenoPort, Inc.
Industry
Eligibility
30 Years to 75 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
2
States / cities
Peoria, Arizona • Bingham Farms, Michigan
Source: ClinicalTrials.gov public record
Updated May 4, 2021 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Interaction Between Cannabidiol, Meal Ingestion, and Liver Function

NCT04971837
View directory record Official record
Conditions
Metabolism, Liver Function, Pharmacokinetics
Interventions
Cannabidiol (CBD) powder formulation, Cannabidiol (CBD) Oil based tincture formulation, Cannabidiol (CBD) Gum Arabic, maltodextrin base formulation, Cannabidiol (CBD) Gum Arabic, sorbitol base formulation, Cannabidiol (CBD) Isolate in water formulation, CBD matching Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Investigation of the Pharmacokinetic Profile of CBD

NCT05269706
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
Cannabidiol 200mg, Epidiolex, Cannabidiol 400mg, Placebo
Drug
Lead sponsor
Yasmin Hurd
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Jul 22, 2026, 5:05 PM EDT
Completed Phase 3 Interventional

Study To Assess Adverse Events and Change in Disease Activity Of 24-hour Continuous Subcutaneous Infusion Of ABBV-951 In Adult Participants With Advanced Parkinson's Disease

NCT04750226
View directory record Official record
Conditions
Parkinson's Disease (PD)
Interventions
ABBV-951
Drug
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
47
States / cities
Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 41 more
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Jul 22, 2026, 5:05 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Effects of Cannabidiol and Tetrahydrocannabinol on Microbiome and Neuroinflammation in HIV

NCT05514899
View directory record Official record
Conditions
HIV, Cannabis, THC, Neuroinflammatory Disease, Neuroinflammatory Response, Microbiome
Interventions
THC, CBD
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 70 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jul 22, 2026, 5:05 PM EDT