50
Participants
Start Date
February 5, 2025
Primary Completion Date
June 30, 2027
Study Completion Date
December 31, 2027
Placebo
inactive substance
Psilocybin
active comparator for psychedelic effects
Ketamine
psychoactive substance
Dextromethorphan (DXM)
psychoactive substance
Dimethyltryptamine (DMT)
psychoactive substance
Methylenedioxymethamphetamine (MDMA)
psychoactive substance
Tetrahydrocannabinol (THC)
psychoactive substance
RECRUITING
Johns Hopkins Center for Psychedelic and Consciousness Research, Baltimore
Johns Hopkins University
OTHER