Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:10 PM EDT

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

Showing 1–24 of 504 matching trials from the live ClinicalTrials.gov search.
Conditions
Spinal Cord Injuries
Interventions
5HTP, L-DOPA, Placebo oral tablet, Carbidopa
Drug
Lead sponsor
Jessica M D'Amico
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Louisville, Kentucky
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
Conditions
Posttraumatic Stress Disorder
Interventions
Trauma Memory Reactivation, Cannabidiol (CBD) Broad-Spectrum Oil, Placebo Oil
Behavioral · Dietary Supplement
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Austin, Texas
Conditions
Parkinson's Disease
Interventions
ABBV-951
Drug
Lead sponsor
AbbVie
Industry
Eligibility
30 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
10
States / cities
Aurora, Colorado • Washington D.C., District of Columbia • Chicago, Illinois + 7 more
Recruiting Phase 1 Interventional Accepts healthy volunteers

The Pharmacokinetics of a Hemp-Based Topical Product

NCT07603518
Conditions
Cannabis
Interventions
CBD, THC
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Parkinson's Disease
Interventions
Istradefylline (KW-6002)
Drug
Lead sponsor
Kyowa Kirin, Inc.
Industry
Eligibility
30 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
2
States / cities
Princeton, New Jersey
Conditions
Parkinson's Disease
Interventions
IPX066, IR CD-LD
Drug
Lead sponsor
Impax Laboratories, LLC
Industry
Eligibility
30 Years and older
Enrollment
471 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
35
States / cities
Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 30 more
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
Conditions
Advanced Parkinson's Disease
Interventions
Levodopa-carbidopa intestinal gel, CADD-Legacy® 1400 ambulatory infusion pump, PEG tube, J-tube
Drug · Device
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
30 Years and older
Enrollment
354 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
31
States / cities
Birmingham, Alabama • Fountain Valley, California • Los Angeles, California + 25 more
Conditions
Opioid Use Disorder
Interventions
Dronabinol Capsules, Epidiolex 100 mg/mL Oral Solution, Placebo Dronabinol, Placebo Epidiolex
Drug · Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Cannabis
Interventions
CBD 1mg/Kg, CBD 2mg/Kg, CBD 4mg/Kg, Placebo CBD
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Anorexia Nervosa
Interventions
Cannabidiol, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
San Diego, California
Conditions
Diabetic Peripheral Neuropathic Pain
Interventions
CBD/PEA, Placebo
Drug
Lead sponsor
Pure Green Pharmaceuticals Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Southfield, Michigan
Conditions
Parkinson Disease
Interventions
Neurostimulation, Carbidopa 25/Levodopa 100Mg Tab
Device · Drug
Lead sponsor
David Escobar
Other
Eligibility
18 Years to 80 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Chronic Pain, Pain
Interventions
Medical Cannabis
Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Glioblastoma
Interventions
Cannabidiol (CBD), Placebo
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
San Francisco, California
Not listed Phase 2 Interventional Accepts healthy volunteers

Outcomes Mandate National Integration With Cannabis as Medicine

NCT03944447
Conditions
Chronic Pain, Chronic Pain Syndrome, Chronic Pain Due to Injury, Chronic Pain Due to Trauma, Fibromyalgia, Seizures, Hepatitis C, Cancer, Crohn Disease, HIV/AIDS, Multiple Sclerosis, Traumatic Brain Injury, Sickle Cell Disease, Post Traumatic Stress Disorder, Tourette Syndrome, Ulcerative Colitis, Glaucoma, Epilepsy, Inflammatory Bowel Diseases, Parkinson Disease, Amyotrophic Lateral Sclerosis, Chronic Traumatic Encephalopathy, Anxiety, Depression, Insomnia, Autism, Opioid-use Disorder, Bipolar Disorder, Covid19, SARS-CoV Infection, COVID-19, Corona Virus Infection, Coronavirus
Interventions
Cannabis, Medical, RYAH-Medtech Inhaler
Drug · Device
Lead sponsor
OMNI Medical Services, LLC
Network
Eligibility
7 Years and older
Enrollment
200,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
17
States / cities
Boca Raton, Florida • Bradenton, Florida • Fort Lauderdale, Florida + 13 more
Conditions
Migraine, Cannabis, THC, CBD
Interventions
THC ~5%, CBD ~12%, THC ~5% and CBD ~12%, Sham Cannabis
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 65 Years
Enrollment
92 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
La Jolla, California
Completed Phase 2 Interventional Accepts healthy volunteers

Levodopa for Diabetic Retinopathy

NCT07444892
Conditions
Diabetic Retinopathy
Interventions
Levodopa, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Decatur, Georgia
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
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
Completed Phase 1Phase 2 Interventional Results available

CBD for Dental Pain

NCT04642404
Conditions
Odontalgia, Toothache
Interventions
Epidiolex 100 mg/mL Oral Solution, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 75 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
San Antonio, Texas
Conditions
Chronic Inflammation
Interventions
CBD oil
Drug
Lead sponsor
University of Florida
Other
Eligibility
21 Years to 60 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Gainesville, Florida
Completed Not applicable Interventional Accepts healthy volunteers Results available

Interaction Between Cannabidiol, Meal Ingestion, and Liver Function

NCT04971837
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