THC
Clinical trials for THC explained in plain language.
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Can CBD tame a THC high? scientists test the mix
Knowledge-focused Recruiting nowThis study aims to understand if taking cannabidiol (CBD) changes the mind-altering effects of tetrahydrocannabinol (THC), the main psychoactive part of cannabis. Researchers will recruit 100 healthy, occasional cannabis users to inhale different combinations of CBD and THC. They…
Matched conditions: THC
Phase: PHASE1, PHASE2 • Sponsor: Centre hospitalier de l'Université de Montréal (CHUM) • Aim: Knowledge-focused
Last updated Mar 24, 2026 12:02 UTC
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Scientists scan brains to see how marijuana impairs memory
Knowledge-focused Recruiting nowThis Yale University study uses brain scans to understand how THC, the main active ingredient in marijuana, affects memory, decision-making, and balance in adults. Ten participants will complete thinking tasks in an MRI scanner after receiving either THC or a placebo. The goal is…
Matched conditions: THC
Phase: PHASE2 • Sponsor: Yale University • Aim: Knowledge-focused
Last updated Mar 23, 2026 15:19 UTC
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Can switching to weaker weed sharpen your mind?
Knowledge-focused Recruiting nowThis study aims to understand if using cannabis with lower THC (the main psychoactive compound) can improve memory and thinking skills in young adults who use it frequently. Researchers will recruit 110 participants aged 21-25 in San Francisco, provide incentives for them to swit…
Matched conditions: THC
Phase: NA • Sponsor: University of California, San Francisco • Aim: Knowledge-focused
Last updated Mar 02, 2026 15:26 UTC
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Scientists probe the hidden effects of mixing weed and tobacco
Knowledge-focused Recruiting nowThis study aims to understand what happens in the body when people use marijuana and tobacco together. Researchers will measure drug levels in the blood and physical effects like heart rate in 48 healthy adults who regularly use both substances. The goal is to gather foundational…
Matched conditions: THC
Phase: PHASE2 • Sponsor: University of California, San Francisco • Aim: Knowledge-focused
Last updated Mar 02, 2026 15:20 UTC