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A Randomized, Controlled Trial of Linopirdine in the Treatment of Alzheimer's Disease

Kenneth Rockwood, B. Lynn Beattie, M. Robin Eastwood, Howard Feldman,
Erich Mohr, William Pryse-Phillips and Serge Gauthier

 

Abstract: Objectives: We tested the efficacy and safety of linopirdine, a novel phenylindolinone, in the treatment of Alzheimer's disease. Methods: A multicentre, randomized, double-blind, parallel group, placebo-controlled trial of linopirdine (30 mg three times per day or placebo). Patients (n = 382, 55% male, 98% Caucasian, age range 51-95 years) with mild or moderate Alzheimer's disease, of whom 375 received at least one treatment dose were analysed. There were no important differences between the groups at baseline. Results: No difference was seen in Clinical Global Impression scores between patients receiving placebo and those receiving linopirdine (n = 189). Small differences in the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog) scores were seen throughout the study favouring linopirdine; at 6 months the ADAS-Cog scores were 20.2 (linopirdine) and 22.1 (placebo) p = 0.01. Conclusions: This trial did not detect clinically meaningful differences in patients receiving linopirdine for 6 months, despite evidence of a small degree of improved cognitive function. Further studies may benefit from more sensitive tests of treatment effects in Alzheimer's disease.

Can. J. Neurol. Sci. 1997; 24: 140-145

 


 
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