An early Beckley-sponsored pilot trial was the first in modern times to investigate the efficacy of psilocybin as an aid to psychotherapy in overcoming nicotine addiction. The results were extremely promising, with 80% of participants still abstinent at 6-month follow-up – an unprecedented success rate. A second, larger trial with a brain-imaging component to investigate the neurobiological effects of this approach is currently underway.
So far, the research has shown that psilocybin, administered within a structured 15-week smoking cessation treatment protocol, has highly promising efficacy. The intervention was extremely successful, with 12 of 15 participants (80%) still abstinent at 6 month follow-up. This is a substantially higher percentage than for any other behavioural or pharmaceutical intervention. Although the study was open-label (subjects knew they were getting psilocybin), it demonstrates the potential of psilocybin as an addition to smoking cessation programmes.
The Johns Hopkins University is a private research university in Baltimore, Maryland, USA. A founding member of the American Association of Universities, Johns Hopkins has been considered one of the world’s top universities throughout its history. The University stands among the top 10 in US News’ Best National Universities Rankings, and top 20 on a number of international league tables. Over the course of almost 140 years, it has produced 36 Nobel laureates.
Prof Roland Griffiths is a Professor in the Departments of Psychiatry and Neurosciences at the Johns Hopkins University School of Medicine. His principal research focus is on the behavioural and subjective effects of mood-altering drugs. In 1999 he initiated a research programme investigating the effects of psilocybin, including mystical-type experiences, psilocybin-facilitated treatment of psychological distress and smoking cessation, and effects of psilocybin on meditation. He is currently a member of the Expert Advisory Panel on Drug Dependence for the World Health Organization.
Dr Matthew Johnson is an Associate Professor of Psychiatry at the Johns Hopkins University School of Medicine. For 18 years he has conducted research in psychopharmacology and addictions, and for >10 years he has conducted human research with psychedelics. Dr Johnson has conducted human studies with psilocybin, dextromethorphan, salvinorin A, cocaine, methamphetamine, nicotine, caffeine, GHB, alcohol, triazolam, and ramelteon. Current research with psilocybin is examining its potential for facilitating behaviour change.
The American Journal of Drug and Alcohol Abuse, 2016
Journal of Psychopharmacology, 2014
Current Drug Abuse Reviews, 2014
Psilocybin for Depression
Type of publication