Absence of placebo response in obsessive-compulsive disorder

Matig R. Mavissakalian, Bruce Jones, Stephen Olson

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

Analyses in 30 patients with a diagnosis of obsessive-compulsive disorder given singleblind placebo over a 2-week period and of 12 of these patients who continued treatment on double-blind placebo for an additional 10 weeks revealed virtual absence of improvement on both clinician and self-rating scales of obsessions, compulsions, phobias, depression, and anxiety. This result would imply that the contribution of the placebo effect to the pharmacotherapy of patients with obsessive-compulsive disorder is negligible although considerable effort and work is still required to reliably identify one of four panic disorder with agoraphobia patients who respond to placebo. The placebo response thus presents a clear distinction between these two phenomenologically complex anxiety disorders.

Original languageEnglish (US)
Pages (from-to)268-270
Number of pages3
JournalJournal of Nervous and Mental Disease
Volume178
Issue number4
DOIs
StatePublished - Apr 1990

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