Can cannabis alter sperm and testosterone? a trial seeks answers
Knowledge-focused
Cancelled
This trial explores whether cannabis use changes male reproductive health, including sperm quality, testosterone levels, and genetic markers in sperm. Men who use cannabis regularly and those who don't will be randomly assigned to vape cannabis with different THC doses, a placebo…
Phase 1 • Sponsor: Kanako Hayashi • Aim: Knowledge-focused
Last updated Aug 21, 2026 00:00 UTC