title: Venlafaxine in treatment-resistant obsessive-compulsive disorder.
abstract: BACKGROUND
  While selective serotonin reuptake inhibitors (SSRIs) are the first-line treatment of obsessive-compulsive disorder (OCD), approximately 40% of patients fail to respond to SSRIs. Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) that might be effective in the treatment of OCD, even among those who have failed previous SSRI trials.
  
  
  METHODS
  Thirty-nine patients who met DSM-IV criteria for OCD, including 29 who were resistant to prior SRI treatment trials, were treated with venlafaxine in an open, naturalistic fashion. Improvement was assessed using the Clinical Global Impressions-Improvement scale.
  
  
  RESULTS
  Of 39 patients treated with venlafaxine, 27 (69.2%) were rated as sustained treatment responders. Of the 29 patients who did not respond to 1 or more previous SRI trials, 22 (75.9%) were rated as having sustained response to treatment. Mean dose of venlafaxine was 232.2 mg/day (range, 37.5-375 mg/day), and it was generally well tolerated.
  
  
  CONCLUSIONS
  Venlafaxine may be beneficial to individuals with OCD, including those who have not responded to prior SSRI trials. However, these findings must be interpreted with caution, as the study is limited by its open, retrospective nature and its inclusion of patients with comorbid diagnoses and patients on concomitant medications. Prospective, controlled trials with a more homogeneous patient population are needed to replicate these preliminary findings.
authors.affiliation: Department of Psychiatry, Compulsive, Impulsive, and Anxiety Disorders Program, Mount Sinai School of Medicine, New York, NY 10029, USA. eric.hollander@mssm.edu
authors.forename: Eric
authors.initials: E
authors.lastname: Hollander
authors.forename: Jennifer
authors.initials: J
authors.lastname: Friedberg
authors.forename: Stacey
authors.initials: S
authors.lastname: Wasserman
authors.forename: Andrea
authors.initials: A
authors.lastname: Allen
authors.forename: Melissa
authors.initials: M
authors.lastname: Birnbaum
authors.forename: Lorrin M
authors.initials: LM
authors.lastname: Koran
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D015897:Comorbidity; D003511:Cyclohexanols / Q000627:therapeutic use*; D003692:Delayed-Action Preparations; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis / Q000188:drug therapy*; D010865:Pilot Projects; D011569:Psychiatric Status Rating Scales; D012189:Retrospective Studies; D017367:Selective Serotonin Reuptake Inhibitors / Q000627:therapeutic use*; D016896:Treatment Outcome; D000069470:Venlafaxine Hydrochloride
chemical_list: D003511:Cyclohexanols; D003692:Delayed-Action Preparations; D017367:Selective Serotonin Reuptake Inhibitors; D000069470:Venlafaxine Hydrochloride