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Final Report Update 1                                             Drug Effectiveness Review Project







               Table 6: Summary of trials assessing adverse events
                    Author, Year         N      Study design                Results                Quality
                                                                                                    Rating

                                                       Hepatotoxicity
                               80
               Watkins et al., 1994    2446    secondary data  49% of tacrine-treated patients presented   N/A
                                                   review      ALT elevations

                              58
               Farlow et al., 1992      468        RCT        25% of tacrine-treated patients had    Fair
                                                               elevated ALT levels
               *Knapp et al., 1994 68, 86-88    663   RCT     54% of tacrine-treated patients had    Poor
                                                               elevated ALT levels
                               67
               *Wong et al ., 1999      100        RCT        51% of tacrine-treated patients had    Poor
                                                               elevated ALT levels
                              69
               *Wood et al.,1994        154        RCT        44% of tacrine-treated patients had    Poor
                                                               elevated ALT levels

                                                Gastrointestinal adverse events
               Grimley Evans et al.,    NR     pooled analysis   Nausea, vomiting, and diarrhea 3 to 5   N/A
                   14
               2004                                            times more likely for donepezil,
                                                               galantamine, and rivastigmine than for
                                                               placebo
               Cutler et al., 1994 81  3350     pooled  data  Tacrine had a higher rate of adverse   N/A
                                                  analysis     events than donepezil and rivastigmine
               Gauthier et al. 2001 82  NR      Retrospective  dose dependent rates of gastrointestinal   N/A
                                                 data review   adverse events for ChEIs
               *Gillette-Guyonnet et al.   486   Cohort study   Similar incidence of weight loss for   Poor
                   83
               2005                                            patients taking ChEIs compared to
                                                               patients not taking ChEIs
                                                Cardiovascular adverse events
               Dunn et al., 2000 84    1762     Prescription-  No cardiac arrhythmias were reported for   N/A
                                               event monitoring   donepezil
               Morganroth et al. 2002 85  2791  Pooled analysis  No effect on heart rate for rivastigmine   Fair
                                                  of RCTs
               *Poor quality rating for efficacy but included for adverse events

























                 Alzheimer's Drugs                                                               Page 41 of 205
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