title: Is there a relationship between clozapine and obsessive-compulsive disorder?: a retrospective chart review.
abstract: The emergence of obsessive-compulsive symptoms during clozapine treatment has been reported in recent case studies, yet the incidence and significance of this finding is still unclear pending reliable data from a larger sample of patients. Hospital records of 142 randomly selected inpatients started on clozapine treatment at McLean Hospital before July 1, 1992, were reviewed retrospectively. Based on a limited retrospective chart review, there were no definitive cases of patients who developed obsessive-compulsive disorder (OCD) or whose OCD worsened as a result of clozapine treatment. Although some fluctuation of OCD symptoms may have occurred in two cases, it is unclear whether those symptoms were related to treatment with clozapine (or other psychotropic drugs) or to undulations in the natural history of OCD. No definitive relationship between OCD symptoms and clozapine treatment could be established in this limited study. Further clarification of this matter awaits outcome research using prospective methodologies.
authors.affiliation: Psychopharmacology Program, McLean Hospital, Massachusetts General Hospital, Belmont 02114, USA.
authors.forename: S N
authors.initials: SN
authors.lastname: Ghaemi
authors.forename: C A
authors.initials: CA
authors.lastname: Zarate
authors.forename: A P
authors.initials: AP
authors.lastname: Popli
authors.forename: S S
authors.initials: SS
authors.lastname: Pillay
authors.forename: J O
authors.initials: JO
authors.lastname: Cole
mesh_terms: D000328:Adult; D003024:Clozapine / Q000009:adverse effects* / Q000627:therapeutic use; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009771:Obsessive-Compulsive Disorder / Q000188:drug therapy* / Q000523:psychology; D010343:Patient Admission; D011618:Psychotic Disorders / Q000188:drug therapy* / Q000523:psychology; D012189:Retrospective Studies; D012559:Schizophrenia / Q000188:drug therapy*; D012565:Schizophrenic Psychology
chemical_list: D003024:Clozapine