70 likes | 203 Views
A Double-blind, Placebo-controlled Multicentre Study of Memantine in Mild to Moderate Vascular Dementia (MMM500). Wilcock G., Möbius H.J. and Stöffler A. on behalf of the MMM500 group Int Clin Psychopharmacol 2002, 17(6):297 – 305. Study Design. No. of patients N = 579
E N D
A Double-blind, Placebo-controlled Multicentre Study of Memantine in Mild to Moderate Vascular Dementia (MMM500) Wilcock G., Möbius H.J. and Stöffler A. on behalf of the MMM500 group Int Clin Psychopharmacol 2002, 17(6):297–305
Study Design No. of patients N = 579 Design Double-blind, randomized, placebo-controlled, multicenter study Diagnosis Probable VaD (HIS score ≥ 4, DSM-III-R, NINDS-AIREN) Age ≥ 54 years (mean 77) Severity MMSE 10 – 22 (mean 17.6) Dose; duration 20 mg memantine/day; 28 weeks Primary efficacy Cognition: ADAS-cogparameters Global: CGI-C Secondary efficacy MMSE, GBS, NOSGER parameters Wilcock et al., Int Clin Psychopharmacol 2002
Disposition of Patients Patients screenedN = 840 Screen failuresN = 261 (31%) Patients randomizedN = 579 PlaceboN = 284 (49%) MemantineN = 295 (51%) CompletedN = 226(80%) WithdrewN = 58(20%) CompletedN = 238(81%) WithdrewN = 57(19%) Wilcock et al., Int Clin Psychopharmacol 2002
Significant Benefit of Memantine on Cognition (ADAS-cog) ITT, LOCF ADAS-cog total score 24 25 26 27 28 29 * Decline ADAS-cog total score Memantine (20 mg/day) Placebo 0 12 28 Week * p < 0.05 versus placebo Wilcock et al., Int Clin Psychopharmacol 2002
Significant Benefit of Memantine on Cognition (ADAS-cog) ITT, LOCF Mean change from baseline -2 0 2 4 Improvement * ADAS-cog score difference Memantine (20 mg/day) Placebo Decline 0 12 28 Week * p < 0.05 versus placebo Wilcock et al., Int Clin Psychopharmacol 2002
Good Safety and Tolerability of Memantine Adverse events in mild to moderate VaD (MMM500) Memantine Placebo No. of patients 295 (100%) 284 (100%) No. of patients with AEs 226 (77%) 212 (75%) Dizziness 33 (11%) 23 (8%) Inflicted injury 17 (6%) 30 (11%) Confusion 22 (7%) 21 (7%) Constipation 30 (10%) 12 (4%) Bronchitis 20 (7%) 20 (7%) Headache 21 (7%) 19 (7%) Fall 18 (6%) 21 (7%) Coughing 20 (7%) 15 (5%) Agitation 11 (4%) 23 (8%) Wilcock et al., Int Clin Psychopharmacol 2002
Summary • Significant cognitive benefit for memantine treated patients in mild to moderate vascular dementia • Good safety and tolerability of memantine Wilcock et al., Int Clin Psychopharmacol 2002