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An Open-Label Assessment of Aripiprazole in the Treatment of PTSD.

Author(s): Robert S, Hamner MB, Durkalski VL, Brown MW, Ulmer HG

Affiliation(s): Ralph H. Johnson VA Medical Center and Medical University of South Carolina.

Publication date & source: 2009, Psychopharmacol Bull., 42(1):69-80.

Background: Recent studies suggest that atypical antipsychotics may be effective augmentation strategies for the treatment of posttraumatic stress disorder (PTSD). Limited data were available on the newest agent, aripiprazole, so we aimed to evaluate its efficacy and tolerability in the treatment of PTSD. Methods: A 12-week, prospective, open-label, flexible-dose, adjunctive trial of aripiprazole was conducted in military veterans meeting DSM-IV criteria for PTSD. Concomitant psychiatric medications continued unchanged, except for other neuroleptics which were not allowed. The primary outcome variable was change from baseline in the Clinician Administered PTSD scale (CAPS). Results: All 17 subjects were male, with an average age of 57 years. Total CAPS scores decreased from 78.2 (SD = 17.8) at baseline to 60.0 (23.5) at study end (p = 0.002). Re-experiencing (CAPS-B) and avoidance/numbing symptoms (CAPS-C) were significantly improved, and trend level reductions were observed in hyperarousal symptoms (CAPS-D). Fifty-three percent (9/17) were considered responders, as defined by a decrease in total CAPS scores of at least 20%. Reductions in the Positive and Negative Symptom Scale (PANSS) total score and positive and general psychopathology subscale scores were statistically significant. The final average dose of aripiprazole was 13.06 (SD = 6.45) mg daily. Nine patients discontinued because of side effects. The most common adverse events consisted of gastro-intestinal disturbances, sedation, and psychomotor activation. Tolerability was improved with lower starting doses (e.g., 5 mg daily) and slow titration. Conclusions: Addition of aripiprazole to ongoing treatment further reduced PTSD symptoms in military veterans with severe PTSD. These preliminary findings await confirmation in randomized, controlled trials.

Page last updated: 2009-10-20

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