Discontinuation of Alzheimer's Treatment Linked to Adverse Events
Adverse effects and cost are cited as major factors in treatment discontinuation.
HealthDay News — Discontinuation of acetylcholinesterase inhibitors (AChEIs) for treatment of Alzheimer's disease is common, with adverse effects and cost cited as major factors, according to a study published in the Journal of the American Geriatrics Society.
Noll L. Campbell, PharmD, from the Purdue University School of Pharmacy in West Lafayette, Ind., and colleagues randomized 196 older adults with a diagnosis of possible or probable Alzheimer's disease who were initiating treatment with an AChEI to one of three AChEIs (1:1:1) for 18 weeks.
In the intent to treat analysis, the researchers found that discontinuation rates at the end of 18 weeks were 38.8% for donepezil, 53% for galantamine, and 58.7% for rivastigmine (P =.063). Adverse events explained 73.1% of discontinuation, while cost explained 25.4%. More than 81% of participants reported adverse events, but rates were similar between groups.
"This pragmatic comparative trial showed high rates of adverse events and cost-related nonadherence with AChEIs," the authors wrote.
Campbell NL, Perkins AJ, Gao S, et al. Adherence and tolerability of Alzheimer's disease medications: a pragmatic randomized trial:a pragmatic randomized trial [published online March 4, 2017]. J Am Geriatr Soc. doi:10.1111/jgs.14827