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BRITISH JOURNAL OF PSYCHIATRY
卷 184, 期 -, 页码 337-345出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1192/bjp.184.4.337
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Background Few controlled studies have examined the use of atypical antipsychotic drugs for prevention of relapse in patients with bipolar I disorder Aims To evaluate whether olanzapine plus either lithium or valproate reduces the rate of relapse, compared with lithium or valproate alone. Method Patients achieving syndromic remission after 6 weeks' treatment with olanzapine plus either lithium (0.6- 1.2 mmol/l) or valproate (50-125 mug/ml) received lithium or valproate plus either olanzapine 5-20 mg/day (combination therapy) or placebo (monotherapy), and were followed in a double-masked trial for 18 months. Results The treatment difference in time to relapse into either mania or depression was not significant for syndromic relapse (median time to relapse: combination therapy 94 days, monotherapy 40.5 days; P=0.742), but was significant for symptomatic relapse (combination therapy 163 days, monotherapy 42 days; P=0.023). Conclusions Patients taking. olanzapine added to lithium or valproate experienced sustained symptomatic remission but not syndromic remission, for longer than those receiving lithium or valproate monotherapy. Declaration of interest M.T., R.W.B., P.D.F., A.R.E. and R.C.R. are stockholders in Eli Lilly & Company, the sponsor of this study.
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