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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Vaporized Marijuana Clear all
Completed Not applicable Interventional

MIVetsCan: Can-Coach Trial (Phase 1)

NCT06320470
View directory record Official record
Conditions
Chronic Pain
Interventions
Educational Session
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Cannabis Versus Oxycodone for Pain Relief

NCT02892591
View directory record Official record
Conditions
Back Pain, Neck Pain
Interventions
Cannabis, Oxycodone, Placebo for Cannabis, Placebo for Oxycodone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 21, 2024 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Results available

Opioid and Cannabinoid Interactions

NCT03705559
View directory record Official record
Conditions
Marijuana Usage, Opioid Use
Interventions
Vaporized Marijuana, Opioid Agonist, Placebo
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Effects of Vaporized Marijuana on Neuropathic Pain

NCT01037088
View directory record Official record
Conditions
Neuropathic Pain, Reflex Sympathetic Dystrophy, Peripheral Neuropathy, Post-herpetic Neuralgia, Spinal Cord Injury, Multiple Sclerosis
Interventions
Mild dose cannabis, Low dose cannabis, Cannabis
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 70 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jan 30, 2018 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Reinforcing Effects of Marijuana and Opioids

NCT05485012
View directory record Official record
Conditions
Marijuana Use, Opioid Use
Interventions
Marijuana, Opioid
Drug
Lead sponsor
Shanna Babalonis, PhD
Other
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Cannabis Administration Routes on Human Performance and Pharmacokinetics

NCT02177513
View directory record Official record
Conditions
Cannabis Use
Interventions
Placebo + Placebo, Oral Cannabis + Placebo, Placebo + Inhaled Cannabis, Placebo + Smoked Cannabis, 6.9% cannabis oral
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced Sep 2, 2026, 6:49 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Behavioral Pharmacology of THC and Beta-Myrcene

NCT05432284
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Not yet recruiting Early Phase 1 Interventional Accepts healthy volunteers

Lung Health and Breath Biomarkers: Acute Effects of Inhaled Cannabis

NCT07694466
View directory record Official record
Conditions
Cannabis Use, Tobacco, Biomarkers
Interventions
Cannabis (THC), Tobacco Cigarette
Drug
Lead sponsor
Hannah Harris
Other
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Delta-8-THC vs. Delta-9-THC on Simulated Driving Performance

NCT06218550
View directory record Official record
Conditions
Cannabis
Interventions
Delta-9-THC, Delta-8-THC, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Cannabis on Prescription Drug Abuse Liability and Analgesia

NCT03679949
View directory record Official record
Conditions
Pain, Abuse, Drug
Interventions
Oxycodone, Cannabis (THC:CBD = ~ 1:0), Cannabis (THC:CBD = ~ 0:1), Cannabis (THC:CBD = ~ 1:1), Placebo
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 53 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 4, 2024 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 2 Interventional Results available

Effect of Cannabis and Endocannabinoids on HIV Neuropathic Pain

NCT03099005
View directory record Official record
Conditions
Cannabis, HIV Neuropathy, Pain Syndrome
Interventions
Cannabis
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 2 Interventional Results available

Trial of Dronabinol and Vaporized Cannabis in Chronic Low Back Pain

NCT02460692
View directory record Official record
Conditions
Cannabis, Low Back Pain, Neuropathic Pain
Interventions
Placebos, dronabinol, Vaporized Cannabis 3.7% THC/5.6% CBD
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
19 Years to 70 Years
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparative Pharmacokinetic and Pharmacodynamic Effects of Delta-8 and Delta-9 THC

NCT05287256
View directory record Official record
Conditions
Behavioral Pharmacology of Cannabis
Interventions
Oral Delta-8-THC Cannabis, Oral Delta-9-THC Cannabis, Oral Placebo, Vaporized Delta-8-THC Cannabis, Vaporized Delta-9-THC Cannabis, Vaporized Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effect of Cannabis on E-Cigarette Use Behavior

NCT06609109
View directory record Official record
Conditions
Cannabis Use, Tobacco Use, Electronic Cigarette Use
Interventions
THC High Dose, THC Low Dose, THC 0mg, E-Cigarette Full Nicotine, E-Cigarette Placebo Nicotine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Suspended Phase 2 Interventional Accepts healthy volunteers

Repeated Administration of Cannabis Varying in THC and CBD

NCT05563948
View directory record Official record
Conditions
Cannabis
Interventions
Cannabis
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
21 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2034
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Analgesic and Subjective Effects of Terpenes

NCT04451863
View directory record Official record
Conditions
Pain, Abuse, Drug
Interventions
Low THC, High THC, Low Myrcene, High Myrcene, Low Beta-Caryophyllene, High Beta-Caryophyllene, Placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Vaporized Cannabis and Spinal Cord Injury Pain

NCT01555983
View directory record Official record
Conditions
Spinal Cord Injuries, Spinal Cord Diseases
Interventions
Vaporization of Cannabis
Drug
Lead sponsor
Barth Wilsey
Other
Eligibility
18 Years to 70 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Mather, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced Sep 2, 2026, 6:49 AM EDT
Not yet recruiting Phase 2 Interventional Accepts healthy volunteers

Acute Effects of Cannabis on Cognition and Affect

NCT07296874
View directory record Official record
Conditions
Cannabis Use
Interventions
THC 20mg, Placebo
Drug
Lead sponsor
Washington State University
Other
Eligibility
21 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pullman, Washington
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

THC and CBD: A Controlled Human Study Probing a Harm Reduction Strategy

NCT06859710
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 2, 2026, 6:49 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Effect of Cannabis on Cigarette Use Behavior

NCT06609083
View directory record Official record
Conditions
Cannabis Use, Tobacco Use, Cigarette Smoking
Interventions
THC 30mg, THC 5mg, THC 0mg, Cigarette Full Nicotine, Cigarette Reduced Nicotine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 2, 2026, 6:49 AM EDT
Recruiting Phase 2 Interventional

Pilot fMRI Studies of Aging-Related Effects of THC

NCT06647524
View directory record Official record
Conditions
THC
Interventions
THC, Placebo
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 8, 2025 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Differences in Cannabis Impairment and Its Measurement Due to Route of Administration

NCT03122691
View directory record Official record
Conditions
Behavioral Pharmacology of Cannabis
Interventions
cannabis
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 2, 2026, 6:49 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Neuroscience of Alcohol and Marijuana Impaired Driving

NCT03431987
View directory record Official record
Conditions
Marijuana Usage, Alcohol Drinking
Interventions
One day with a dose of placebo cannabis paired with alcohol, One day with a dose of active THC cannabis paired with alcohol
Drug
Lead sponsor
Hartford Hospital
Other
Eligibility
21 Years to 40 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 2, 2026, 6:49 AM EDT
Completed Phase 2 Interventional

Efficacy of Inhaled Cannabis for Acute Migraine Treatment

NCT04360044
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 27, 2023 · Synced Sep 2, 2026, 6:49 AM EDT