effects of psilocybin in obsessive-compulsive disorder - an update, medyczne- książki w j ang
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m a p s • v o l u m e x i i i n u m b e r 1 • s p r i n g 2 0 0 3
Effects of Psilocybin in Obsessive-
Compulsive Disorder: An Update
Christopher Wiegand, M.D., Co-Investigator (cbw@u.arizona.edu)
At the University of Arizona, we are currently conducting a study that investigates the effects
of psilocybin in obsessive-compulsive disorder (OCD). As this is an FDA Phase I study, our first and
foremost goal is to demonstrate safety and tolerability of psilocybin in human subjects. At the same
time, we are collecting pilot data regarding psilocybin’s efficacy in treating OCD. The latter effort is
based on anecdotal and
theoretical evidence which
suggests that psilocybin re-
lieves the symptoms of OCD
in some patients.
Thus far, we have had
7 subjects and a total of 22
psilocybin dosing sessions.
All sessions have been tolerated well with no significant adverse effects. All 7 subjects have said
that they would, if given the chance, repeat their session experience again. We are still looking
for volunteers to participate as subjects in the study, and hope to finish the study before July
2003. Preliminary findings will
be made available in May at the
American Psychiatric Associa-
tion meeting in San Francisco.
Potential subjects must
meet the following criteria: age
21-65 years old, must have pre-
vious experience with
psychedelic drugs, and must
have OCD which is
treatment resistant (e.g. have
tried one or more first-line
medications at adequate dosage
for a minimum of 4 weeks
without significant improve-
ment in OCD symptoms).
Those interested in volunteer-
ing can contact Dr. Chris
Wiegand at (520) 626-7708 or
via e-mail: psilocybinaz@yahoo.com.
If you are chosen to participate,
travel and lodging expenses can
be defrayed if you are in need
of assistance.
I
would like to thank MAPS for their support of my
trip to Switzerland and Germany. I had the opportunity
of visiting Dr. Franz Vollenweider and his team of re-
searchers at the Heffter Research Center, Psychiatric Uni-
versity Hospital in Zürich. We discussed projects cur-
rently underway or planned at both Arizona and Zurich.
We exchanged impressions and hypotheses about mecha-
nisms of potential therapeutic applications, and shared
experiences and strategies to overcome hurdles frequently
encountered in the process of conducting psychedelic
research. We also discussed the potential for collabora-
tions in current efforts and future projects.
I also visited Dr. Torsten Passie, a very gifted and
experienced psycholytic therapist and researcher in
Hannover, Germany, who is currently conducting some
interesting experimental studies in the effects of psilo-
cybin on binocular depth inversion, binocular rivalry, neu-
ropsychology and synaesthesias in healthy physician vol-
unteers. This experience was also very enriching.
–
Francisco Moreno, M.D., Co-Investigator
“As this is an FDA Phase I study, our first
and foremost goal is to demonstrate the
safety and tolerability of psilocybin in
human subjects.”
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