Adjunctive risperidone in the treatment of chronic combat-related posttraumatic stress disorder.
BACKGROUND
The efficacy and safety of risperidone was evaluated in veteran patients with chronic combat-related posttraumatic stress disorder (PTSD) who were referred to a residential treatment program.


METHODS
Seventy-three subjects volunteered to participate in this double-blind, placebo-controlled study, which comprised of a 5 week residential program followed by a 3-month outpatient follow-up. Risperidone was added to a stable psychotropic medication regimen in 92% of subjects. Primary outcome measures were the Clinician-Administered PTSD scale (CAPS-total) and its three subscales; B (Re-experiencing), C (Avoidance) and D (Arousal). Secondary outcome measures were the Hamilton Anxiety (HAM-A) and Depression (HAM-D) scales, and the Positive and Negative Syndrome Scale, Positive Subscale (PANSS-P).


RESULTS
Sixty-five subjects were randomized and 48 completed the 4-month study. Significantly greater improvement in symptoms was observed in subjects receiving risperidone compared to placebo on the CAPS-total and CAPS-D subscale scores and also on HAM-A and PANSS-P. Numerically greater improvements in all the remaining measures were noted with risperidone, but the differences did not reach statistical significance. Risperidone was well tolerated.


CONCLUSIONS
These results suggest that adjunctive risperidone improved a broad range of psychiatric symptoms in patients with chronic combat-related PTSD. The data support the concept that atypical antipsychotic medications may have a wider therapeutic spectrum that goes beyond the treatment of psychosis.
Bartzokis
George
G
Department of Neurology, University of California School of Medicine, Los Angeles, California, USA. gbar@ucla.edu
Lu
Po H
PH
Turner
Jana
J
Mintz
Jim
J
Saunders
C Scott
CS
D000328:Adult; D014150:Antipsychotic Agents / Q000627:therapeutic use*; D004311:Double-Blind Method; D004341:Drug Evaluation; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011569:Psychiatric Status Rating Scales; D018967:Risperidone / Q000627:therapeutic use*; D013313:Stress Disorders, Post-Traumatic / Q000188:drug therapy*; D016896:Treatment Outcome; D014728:Veterans; D014857:Warfare
D014150:Antipsychotic Agents; D010919:Placebos; D018967:Risperidone