CANNABIS USE
Clinical trials for CANNABIS USE explained in plain language.
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New app aims to help teens quit weed
Disease control OngoingThis study is testing a new smartphone app designed to help teenagers who are involved with the court system reduce or stop their marijuana use. The app, called TECH, creates a private online community where teens can work on changing their behavior with support from other anonym…
Matched conditions: CANNABIS USE
Phase: NA • Sponsor: Northwestern University • Aim: Disease control
Last updated Mar 30, 2026 14:28 UTC
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Pharmacies vs street dealers: which cannabis is safer for your health?
Disease control OngoingThis study aims to understand if buying regulated cannabis from pharmacies, combined with pharmacist counseling, leads to better health and social outcomes for recreational users compared to buying from the illicit street market. Over 1,000 adult cannabis users in Switzerland are…
Matched conditions: CANNABIS USE
Phase: NA • Sponsor: University of Bern • Aim: Disease control
Last updated Mar 27, 2026 12:40 UTC
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Swiss study tests app to make cannabis use safer
Prevention ENROLLING_BY_INVITATIONThis study is testing a web application designed to help regular adult cannabis users learn and adopt safer habits to reduce potential harms. It involves 565 participants in Lausanne, Switzerland, who are already part of a pilot program for regulated cannabis sales. Researchers w…
Matched conditions: CANNABIS USE
Phase: NA • Sponsor: Jacques Gaume • Aim: Prevention
Last updated Mar 23, 2026 15:19 UTC
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Scientists test if pot changes how HIV drugs work
Knowledge-focused OngoingThis study aims to understand how using cannabis affects the levels of HIV medications in the body and brain, and whether it impacts mood and thinking. Researchers will first observe 120 people who already use cannabis, then give cannabis or a placebo to 40 people to measure imme…
Matched conditions: CANNABIS USE
Phase: PHASE2 • Sponsor: University of California, San Diego • Aim: Knowledge-focused
Last updated Apr 01, 2026 14:42 UTC
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Ottawa study seeks to unlock why homeless youth turn to drugs and tobacco
Knowledge-focused ENROLLING_BY_INVITATIONThis research project aims to understand why homeless or at-risk youth in Ottawa use multiple substances like tobacco, cannabis, and other drugs. The study will work directly with about 520 young people and adults, using surveys and interviews to learn about their experiences. Ba…
Matched conditions: CANNABIS USE
Sponsor: Ottawa Hospital Research Institute • Aim: Knowledge-focused
Last updated Apr 01, 2026 14:42 UTC
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Could your cannabis habit change your surgery? new study investigates
Knowledge-focused ENROLLING_BY_INVITATIONThis study aims to understand how a person's cannabis use affects the amount of anesthesia they need during back surgery and their recovery afterward. Researchers will observe 210 adults having lower back surgery, comparing those who use cannabis to those who don't. They will tra…
Matched conditions: CANNABIS USE
Sponsor: University of Missouri-Columbia • Aim: Knowledge-focused
Last updated Mar 23, 2026 15:17 UTC