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J Clin Psychiatry. 2004 Jan;65(1):114-9.

A 3-month, randomized, placebo-controlled, neuroleptic discontinuation study in 100 people with dementia: the neuropsychiatric inventory median cutoff is a predictor of clinical outcome.

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  • 1Wolfson Research Centre, Newcastle General Hospital, Newcastle, UK. c.g.ballard@ncl.ac.uk

Abstract

BACKGROUND:

Although few placebo-controlled neuroleptic discontinuation studies have been conducted in people with dementia, such studies are essential to inform key clinical decisions.

METHOD:

A 3-month, double-blind, placebo-controlled, neuroleptic discontinuation study (June 2000 to June 2002) was completed in 100 care-facility residents with probable or possible Alzheimer's disease (according to National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Related Disorders Association criteria) who had no severe behavioral disturbances and had been taking neuroleptics for longer than 3 months. The Neuropsychiatric Inventory (NPI) was used to measure changes in behavioral and psychiatric symptoms. Quality of life was evaluated using Dementia Care Mapping.

RESULTS:

Eighty-two patients completed the 1-month assessment (36 placebo, 46 active). The number of participants withdrawing overall (N = 14 [30%] placebo, N = 14 [26%] active treatment) and because of exacerbation of behavioral symptoms (N = 6 [13%] placebo, N = 5 [9%] active treatment) was similar in the neuroleptic- and placebo-treated patients. As hypothesized, patients with baseline NPI scores at or below the median (< or = 14) had a particularly good outcome, with a significantly greater reduction of agitation in the patients receiving placebo (Mann-Whitney U test, z = 2.4, p =.018), while patients with higher baseline NPI scores were significantly more likely to develop marked behavioral problems if discontinued from neuroleptics (chi(2) = 6.8, p =.009). There was no overall difference in the change of quality of life parameters between groups.

DISCUSSION:

A standardized evaluation with an instrument such as the NPI may be a clinical indicator of which people with dementia are likely to benefit from discontinuation of neuroleptic treatment.

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PMID:
14744180
[PubMed - indexed for MEDLINE]
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