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Marijuana Smoking clinical trials

The registry lists 25 studies for Marijuana Smoking across 3 countries. 7 are recruiting or about to start. 16 of them are mainly about Marijuana Smoking (how this is decided). Per ClinicalTrials.gov, last updated 2026-07-13.

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Example · made-up studies

Breast cancer · Recruiting: 2 came in, 3 changed

What changed in your saved searches, Oct 31 – Nov 6:

A study of drug A after surgery for early breast cancer

Came in · now Recruiting

Drug B with hormone therapy in advanced breast cancer

Changed

· Sites: 4 added, including Seoul and Busan

· Enrollment: 300 → 450 participants

Exercise during chemotherapy

Now Active, not recruiting

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Status

Completed
15
Recruiting
7
Status unknown
1
Active, not recruiting
1
Withdrawn
1

Phase

Phase 2
11
Phase 3
2
Phase 1
1

Where

United States
21
Canada
3
Switzerland
1

Who runs them

University of California, San Francisco (2) · Brown University (2) · New York State Psychiatric Institute (2) · National Institute on Alcohol Abuse and Alcoholism (NIAAA) (1) · Wayne State University (1) · University of Rhode Island (1) · Indiana University (1) · State University of New York at Buffalo (1)

What is being tested here

Drugs under test in Marijuana Smoking studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

DrugOpenPhase 3All
Cannabis sativa subsp. indica TOP102
Nicotine101
Dronabinol002
Cannabidiol001
Naltrexone001
Nabilone011
Varenicline001

Coming up

0phase 3 studies under way
1study finishes main data collection within a year

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The study

Who these studies take

Of the 7 Marijuana Smoking studies recruiting now, 0 (0%) set no upper age limit and 6 (86%) stop at 75 or younger. 1 (14%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 6 (86%) take healthy volunteers.

Recruiting studies that take each age, of 7
AgeWomenMen
100 (0%)0 (0%)
184 (57%)4 (57%)
305 (71%)5 (71%)
405 (71%)5 (71%)
505 (71%)5 (71%)
653 (43%)3 (43%)
751 (14%)1 (14%)
851 (14%)1 (14%)

Across all 25 studies, recruiting or not: 68% stop at 75 or younger and 64% at 65; 20% take children; 0% are for women only and 0% for men only; 64% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

Studies

Recruiting first, then most recently updated. Showing 25 of 25. search them.