Comparison of 23 mg Donepezil Sustained Release (SR) to 10 mg Donepezil Immediate Release (IR) in Patients With Moderate to Severe Alzheimer's Disease

Summary

The purpose of this study is to compare 23 mg donepezil sustained release (SR) to the currently marketed formulation of 10 mg donepezil immediate release (IR) in patients with moderate to severe Alzheimer's disease.

Timeline

Start

2007-06

Primary completion

2009-06

Completion

—

Outcome

Mixed primary results

paper At study end (week 24), the LSM (SE) Delta in SIB score was significantly greater with donepezil 23 mg/d than with donepezil 10 mg/d PMID 20678673 ↗

paper The between-treatment difference in CIBIC+ score was nonsignificant (4.23 [1.07] vs 4.29 [1.07]). PMID 20678673 ↗

Publications

• Schmitt FA, Saxton J, Ferris SH, Mackell J, Sun Y. Evaluation of an 8-item Severe Impairment Battery (SIB-8) vs. the full SIB in moderate to severe Alzheimer's disease patients participating in a donepezil study. Int J Clin Pract. 2013 Oct;67(10):1050-6. doi: 10.1111/ijcp.12188.
• Salloway S, Mintzer J, Cummings JL, Geldmacher D, Sun Y, Yardley J, Mackell J. Subgroup analysis of US and non-US patients in a global study of high-dose donepezil (23 mg) in moderate and severe Alzheimer's disease. Am J Alzheimers Dis Other Demen. 2012 Sep;27(6):421-32. doi: 10.1177/1533317512454708.
• Doody RS, Geldmacher DS, Farlow MR, Sun Y, Moline M, Mackell J. Efficacy and safety of donepezil 23 mg versus donepezil 10 mg for moderate-to-severe Alzheimer's disease: a subgroup analysis in patients already taking or not taking concomitant memantine. Dement Geriatr Cogn Disord. 2012;33(2-3):164-73. doi: 10.1159/000338236. Epub 2012 May 10.
• Ferris SH, Schmitt FA, Saxton J, Richardson S, Mackell J, Sun Y, Xu Y. Analyzing the impact of 23 mg/day donepezil on language dysfunction in moderate to severe Alzheimer's disease. Alzheimers Res Ther. 2011 Jun 20;3(3):22. doi: 10.1186/alzrt84.
• Farlow M, Veloso F, Moline M, Yardley J, Brand-Schieber E, Bibbiani F, Zou H, Hsu T, Satlin A. Safety and tolerability of donepezil 23 mg in moderate to severe Alzheimer's disease. BMC Neurol. 2011 May 25;11:57. doi: 10.1186/1471-2377-11-57.
• Farlow MR, Salloway S, Tariot PN, Yardley J, Moline ML, Wang Q, Brand-Schieber E, Zou H, Hsu T, Satlin A. Effectiveness and tolerability of high-dose (23 mg/d) versus standard-dose (10 mg/d) donepezil in moderate to severe Alzheimer's disease: A 24-week, randomized, double-blind study. Clin Ther. 2010 Jul;32(7):1234-51. doi: 10.1016/j.clinthera.2010.06.019.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Donepezil	Small molecule	10 mg	Oral
Subject	Donepezil	Small molecule	23 mg	Oral

Indications