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 18, 2026, 8:42 AM EDT

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

Showing 265–288 of 340 matching trials from the live ClinicalTrials.gov search.
Conditions
Cannabis, Drug Effect
Interventions
CBD, THC, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cannabis and Schizophrenia: Self-Medication and Agonist Treatment

NCT00946348
Conditions
Schizophrenia, Dual Diagnosis, Schizoaffective Disorder, Psychotic Disorder, Cannabis Use Disorder
Interventions
Dronabinol, Cannabis
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Lebanon, New Hampshire
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Behavioral Pharmacology of THC and Beta-Myrcene

NCT05432284
Conditions
Cannabis Use
Interventions
Placebo, THC, Beta-Myrcene
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Spasticity With Multiple Sclerosis
Interventions
Nabiximols, Placebo
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
6
States / cities
Denver, Colorado • Naples, Florida • Tampa, Florida + 3 more
Conditions
COVID-19, Cardiovascular Diseases, Cardiovascular Risk Factor
Interventions
Cannabidiol, pharmaceutically produced with < 5 ppm THC, Placebo
Drug
Lead sponsor
Cardiol Therapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
7
States / cities
Phoenix, Arizona • Cutler Bay, Florida • Miami, Florida + 4 more
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cannabinoid vs Opioid for Photorefractive Keratectomy Pain Control

NCT05477875
Conditions
Photorefractive Keratectomy, Myopia, Hyperopia
Interventions
oral cannabinoid, oral codeine/acetaminophen
Drug · Combination Product
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Primary Immune Deficiency Disorders, Common Variable Immunodeficiency, X-linked Agammaglobulinemia, Hyper-IgM Syndrome, Wiskott-Aldrich Syndrome
Interventions
Gammaplex
Biological
Lead sponsor
Bio Products Laboratory
Other
Eligibility
2 Years to 16 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
8
States / cities
Irvine, California • Los Angeles, California • Centennial, Colorado + 5 more
Conditions
Insomnia, Malignant Solid Neoplasm
Interventions
Biospecimen Collection, Placebo Administration, Single Agent Therapy
Procedure · Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
25 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Abuse, Drug, Pain
Interventions
Placebo, THC, CBD 20 mg, CBD 40 mg, CBD 80 mg
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Cannabis Use, Impaired Driving, Cognitive Impairment
Interventions
Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 60 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Repeated Cannabis Administration on Experimental Pain and Abuse Liability

NCT04576507
Conditions
Cannabis, Pain, Tolerance, Hyperalgesia
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 60 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New York, New York
Conditions
SCID, Omenn's Syndrome, Reticular Dysgenesis, Wiskott-Aldrich Syndrome, Bare Lymphocyte Syndrome, Common Variable Immunodeficiency, Chronic Granulomatous Disease, CD40 Ligand Deficiency, Hyper IgM Syndrome, X-linked Lymphoproliferative Disease, Hemophagocytic Lymphohistiocytosis, Griscelli Syndrome, Chediak-Higashi Syndrome, Langerhan's Cell Histiocytosis
Interventions
Alemtuzumab 0.3 mg, Cyclophosphamide, Busulfan, Stem Cell Transplantation, Fludarabine phosphate 40 mg, Melphalan, Alemtuzumab 0.2 mg, Fludarabine phosphate 30 mg, MESNA
Drug · Biological
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
Up to 50 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Mechanistic Studies of Psilocybin in Headache Disorders

NCT06464367
Conditions
Migraine
Interventions
Psilocybin, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 70 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Conditions
Healthy Subjects
Interventions
Sativex® (Treatment A), Sativex® and fluconazole concomitantly (Treatment B)
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years to 45 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Anaheim, California
Conditions
Immunodeficiencies, Immune Dysregulation Syndromes
Interventions
Apha/beta T and CD19+ cell depletion using CliniMACS device
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Up to 25 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Brain Mechanisms Supporting Cannabis-induced Pain Relief

NCT04982965
Conditions
Sciatica, Lumbar Radiculopathy, Lower Back Pain, Degenerative Disc Disease, Chronic Low-back Pain (cLBP), Chronic Low Back and Leg Pain, Back Pain
Interventions
Active Cannabis, Placebo Cannabis
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
La Jolla, California
Conditions
Obstructive Sleep Apnea
Interventions
IHL-42X Low Dose, IHL-42X High Dose, Placebo, IHL-42X (Optimal Dose), Dronabinol, Acetazolamide
Drug
Lead sponsor
Incannex Healthcare Ltd
Industry
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
20
States / cities
Chula Vista, California • Long Beach, California • Upland, California + 16 more
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effects of Low-dose Naltrexone in Combination With a Range of Smoked Marijuana

NCT00743145
Conditions
Marijuana Smoking
Interventions
Inactive Marijuana (0% THC), Active Marijuana (5.5% THC), Active Marijuana (6.2% THC), Naltrexone, Placebo naltrexone
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Conditions
Sickle Cell Disease
Interventions
Dronabinol 2.5 MG, Microcrystalline cellulose
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
THC, Cannabis, Cannabis Use, Cannabis Smoking, Tobacco Use, Vaping
Interventions
Cannabis, Nicotine, Pax Loose Leaf Vaporizer, Placebo Marijuana
Drug · Device · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Francisco, California
Conditions
Wiskott-Aldrich Syndrome
Interventions
Hematopoietic stem cell transplantation, Miltenyi CliniMACS selection system, Fludarabine, Melphalan, Thiotepa
Procedure · Device · Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 18 Years · Male only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Memphis, Tennessee
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetic and Pharmacodynamic Effects of Passive Cannabis Inhalation

NCT01798186
Conditions
Cannabis Toxicology
Interventions
Cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Baltimore, Maryland
Suspended Not applicable Interventional Accepts healthy volunteers

Cannabis THC Potency, Metabolism, and Cognitive Impairment in Young Adults

NCT06077292
Conditions
Cannabis Use, THC, Marijuana Use, Cognitive Impairment, THC Vaping
Interventions
15% THC Potency Reduction, 35% THC Potency Reduction
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 25 Years
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Francisco, California
Conditions
Osteoarthritis, Knee
Interventions
Dronabinol, Placebo
Drug · Other
Lead sponsor
Colorado Joint Replacement
Other
Eligibility
21 Years to 75 Years
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Denver, Colorado