Eagerly awaited results of the largest-ever study of psilocybin were announced Tuesday, with Compass Pathways revealing the psychedelic drug was highly efficacious as a therapy for treatment-resistant depression. Still, the company’s stock price dropped 16.4% by the close of trading, perhaps because of safety concerns among investors.
The Phase 2b study is the largest randomized, controlled, double-blind trial of psilocybin, the psychedelic compound in magic mushrooms. The company said it found that patients who were given the highest dose, 25 milligrams, had a significant decrease in depressive symptoms compared to those given 1 milligram, which is such a low dose it functions as a placebo.
Overall, 29.1% of patients in the highest-dose group were in remission three weeks after treatment, compared to 7.6% of those in the control group, and more than a quarter of the patients in the 25-milligram arm were still in remission three months after treatment.
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Largest psilocybin trial finds the psychedelic is effective in treating serious depression
Growing psychedelic mushrooms by Talakay Pakay is licensed under Creative Commons: Attribution 2.0 Generic (CC BY 2.0)