Dimebon disappointment
- PMID: 20836898
- PMCID: PMC2983434
- DOI: 10.1186/alzrt49
Dimebon disappointment
Abstract
Dimebon (latrepirdine) has received widespread publicity as a potential therapy for Alzheimer's disease following a very positive phase 2 study carried out in Russia and published in the Lancet in 2008. In this study there were improvements over 6 months in all endpoints (cognitive, global, daily function and behaviour), with continuing improvement at 12 months in cognition and daily function. A more recent multinational phase 3 study, however, showed no improvements whatsoever and no difference between the two drug-treated groups and the placebo group. Of note, there was little deterioration in any of the groups after 6 months in contrast to the placebo group in the phase 2 study. The potential reasons for these disappointing results are discussed, as well as the implication for dimebon and drug treatment in Alzheimer's disease.
References
-
- Dimebon Disappoints in Phase 3 Trial. http://www.alzforum.org/new/detail.Asp?id=2387
-
- Pfizer and Medivation Announce Results from two Phase 3 Studies in Dimebon (Latrepirdine) Alzheimer's Disease Clinical Development Program. http://investors.medivation.com/releasedetail.Cfm?ReleaseID=448818
-
- Doody RS, Gavrilova SI, Sano M, Thomas RG, Aisen PS, Bachurin SO, Seely L, Hung D. on behalf of the dimebon investigators. Effect of dimebon on cognition, activities of daily living, behaviour, and global function in patients with mild-to-moderate Alzheimer's disease: a randomised, double-blind, placebo-controlled study. Lancet. 2008;372:207–215. doi: 10.1016/S0140-6736(08)61074-0. - DOI - PubMed
Publication types
LinkOut - more resources
Full Text Sources
Other Literature Sources