Pilot study of the 5-HT2AR agonist psilocybin in the treatment of tobacco addiction.

Pilot study of the 5-HT2AR agonist psilocybin in the treatment of tobacco addiction.
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DOI:
10.1177/0269881114548296
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发表时间:
2014-11
期刊:
Journal of psychopharmacology (Oxford, England)
影响因子:
--
通讯作者:
Griffiths RR
Griffiths RR
中科院分区:
其他
文献类型:
--
作者:
Johnson MW;Garcia-Romeu A;Cosimano MP;Griffiths RR

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Despite suggestive early findings on the therapeutic use of hallucinogens in the treatment of substance use disorders, rigorous follow up has not been conducted. To determine the safety and feasibility of psilocybin as an adjunct to tobacco smoking cessation treatment we conducted an open-label pilot study administering moderate (20mg/70kg) and high (30mg/70kg) doses of psilocybin within a structured 15-week smoking cessation treatment protocol. Participants were 15 psychiatrically healthy nicotine-dependent smokers (10 males; mean age of 51 years), with a mean of 6 previous lifetime quit attempts, and smoking a mean of 19 cigarettes per day for a mean of 31 years at intake. Biomarkers assessing smoking status, and self-report measures of smoking behavior demonstrated that 12 of 15 participants (80%) showed seven-day point prevalence abstinence at 6-month follow-up. The observed smoking cessation rate substantially exceeds rates commonly reported for other behavioral and/or pharmacological therapies (typically <35%). Although the open-label design does not allow for definitive conclusions regarding the efficacy of psilocybin, these findings suggest psilocybin may be a potentially efficacious adjunct to current smoking cessation treatment models. The present study illustrates a framework for future research on the efficacy and mechanisms of hallucinogen-facilitated treatment of addiction.
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