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Am J Geriatr Psychiatry. 2008 Jul;16(7):537-50. doi: 10.1097/JGP.0b013e318165db77.

A randomized, double-blind, placebo-controlled study of aripiprazole for the treatment of psychosis in nursing home patients with Alzheimer disease.

Author information

  • 1Section on Geriatric Psychiatry, University of Pennsylvania, Philadelphia, PA 19104-3309, USA. jstreim@mail.med.upenn.edu

Abstract

OBJECTIVE:

To evaluate the efficacy and safety of aripiprazole treatment for psychotic symptoms associated with Alzheimer disease (AD).

METHODS:

In this parallel group, randomized, double-blind, placebo-controlled, flexible-dose trial, institutionalized subjects with AD and psychotic symptoms were randomized to aripiprazole (n = 131) or placebo (n = 125) for 10 weeks. The aripiprazole starting dose was 2 mg/day, and could be titrated to higher doses (5, 10, and 15 mg/day) based on efficacy and tolerability.

RESULTS:

No significant differences in mean change [2 x SD] from baseline between aripiprazole (mean dose approximately 9 mg/day at endpoint; range = 0.7-15.0 mg) and placebo were detected in the coprimary efficacy endpoints of Neuropsychiatric Inventory-Nursing Home Version (NPI-NH) Psychosis score (aripiprazole, -4.53 [9.23]; placebo, -4.62 [9.56]; F = 0.02, df = 1, 222, p = 0.883 [ANCOVA]) and Clinical Global Impression (CGI)-Severity score (aripiprazole, -0.57 [1.63]; placebo, -0.43 [1.65]; F = 1.67, df = 1, 220, p = 0.198 [ANCOVA]) at endpoint. However, improvements in several secondary efficacy measures (NPI-NH Total, Brief Psychiatric Rating Scale Total, CGI - improvement, Cohen-Mansfield Agitation Inventory and Cornell Depression Scale scores) indicated that aripiprazole may confer clinical benefits beyond the primary outcome measures. Treatment-emergent adverse events (AEs) were similar in both groups, except for somnolence (aripiprazole, 14%; placebo, 4%). Somnolence with aripiprazole was of mild or moderate intensity, and not associated with accidental injury. Incidence of AEs related to extrapyramidal symptoms was low with aripiprazole (5%) and placebo (4%).

CONCLUSIONS:

In nursing home residents with AD and psychosis, aripiprazole did not confer specific benefits for the treatment of psychotic symptoms; but psychological and behavioral symptoms, including agitation, anxiety, and depression, were improved with aripiprazole, with a low risk of AEs.

PMID:
18591574
[PubMed - indexed for MEDLINE]
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