Safety and tolerability of once-daily versus twice-daily memantine: a randomised, double-blind study in moderate to severe Alzheimer's disease

Jones, Roy W., Bayer, Antony James ORCID: https://orcid.org/0000-0002-7514-248X, Inglis, Fraser, Barker, Andrew and Phul, Ravinder 2007. Safety and tolerability of once-daily versus twice-daily memantine: a randomised, double-blind study in moderate to severe Alzheimer's disease. International Journal of Geriatric Psychiatry 22 (3) , pp. 258-262. 10.1002/gps.1752

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Abstract

Objective To assess the safety and tolerability of three different dosing schedules of memantine in patients with moderate to severe Alzheimer's disease (AD). Method This 12-week, randomised, double-blind study, investigated three dosing schedules of memantine: OD1 (20 mg once daily with a 1-step up-titration); OD3 (20 mg once daily with a 3-step up-titration); and BID3 (10 mg twice daily with a 3-step up-titration as currently recommended in the memantine labelling). The study comprised 78 patients with moderate to severe AD (DSM-IV-TR criteria; MMSE score ≤18), 70% of whom were on stable dosing of acetylcholinesterase inhibitor (AChEI) initiated ≥3 months prior to study start. Safety and tolerability were assessed by the number of withdrawals, adverse events (AEs) and monitoring of vital signs. Results The number of patient withdrawals was low: 3 of 27 in OD1, 1 of 25 in OD3 and 2 of 26 in BID3. One or more AEs were reported in 9 patients in OD1, 7 patients in OD3 and 12 patients in BID3. Most AEs were mild or moderate, and typical for the population studied; no clinically important differences in AEs or vital signs were observed between the different dosing schedules. There were no between-group differences in efficacy, as assessed by clinical global severity and clinical global change. These results are consistent with the good safety profile of memantine observed in larger studies. Conclusions Although relatively small in size, the study indicates that once-daily dosing and twice-daily dosing of memantine are similar in terms of safety and tolerability. Copyright © 2007 John Wiley & Sons, Ltd.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine
Subjects:	R Medicine > R Medicine (General) R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords:	memantine; Alzheimer's disease; once-daily dose; simplified titration; NMDA
Publisher:	John Wiley & Sons Ltd.
ISSN:	0885-6230
Last Modified:	24 Oct 2022 10:36
URI:	https://orca.cardiff.ac.uk/id/eprint/45060

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