Table 2.
Cognitive Pharmacotherapy for Balance, Gait and Fall Risk
| Study (years) | Study design | Type of intervention | Duration of intervention | Participants | Summary of findings |
|---|---|---|---|---|---|
| Auriel et al. (2006) | Open-label, before–after design | Before and 2 h after taking a single dose of 20 mg of MPH | 2 h | 21 patients with idiopathic PD who receive l-Dopa, (mean age: 70.2 ± 9.2 years, MMSE: 28.8 ± 1.7) | Improvement in the Attention (p = 0.025), whereas the EF Index showed only a trend (p = 0.099). The Timed Up and Go (p = 0.001), gait velocity (p = 0.005) and stride time variability (p = 0.013) showed significant improvements |
| Ben-Itzhak et al. (2008) | RCT, double- blind, placebo-controlled | Before and 2 h after taking 20 mg MPH or a placebo | 2 h | 26 older adults without dementia with subjective memory complaints (mean age: 73.8 ± 1.2 years, mean MMSE: 27.8 ± 1.4) | MPH improved Timed Up and Go (p = 0.004), stride time variability (p = 0.03) and EF (p = 0.03); effects not observed after treatment with the placebo |
| Montero-Odasso et al. (2009) | Open-label study with controls | 5 mg/day of donepezil for 1 month, and another 3 months with 10 mg/day. The MCI group with no treatment | Up to 4 months | Six patients with mild AD (mean age: 79.9 ± 4.8 years; MMSE: 22.3 ± 1.2; MoCA: 15 ± 1.4) compared with eight patients with MCI (mean age: 75.6 ± 6.2 years; MMSE: 27.9 ± 1.7; MoCA: 22.9 ± 1.7) | AD patients increased their gait velocity after 1 month under single (p = 0.045) and dual-tasking (p = 0.047). Stride time variability decreased (improved) during follow-up. These increases were maintained for 4 months. Gait measures in the MCI (control) group were worse than at baseline |
| Assal et al. (2008) | Before–after design | Galantamine mean dose of 17.8 ± 3.5 mg/day | 24 weeks | Nine patients with mild- to-moderate AD (mean age: 77.9 ± 2.1 years; mean MMSE: 26.4 ± 5.2) compared with 18 no-treatment control subjects without dementia (mean age: 78.1 ± 1.0 years; mean MMSE: 29.4 ± 0.8) | Stride time was shorter under dual-tasking after treatment (p = 0.01). There was no change in the controls |
| Chung et al. (2010) | Randomized, crossover, double-blind | Donepezil compared with placebo. In each drug phase, subjects were instructed to take 5 mg/day of donepezil or placebo for 3 weeks and to increase to 10 mg/day for the remaining 3 weeks | 6 weeks, 3 weeks washout, 6 weeks of placebo | 23 patients with PD who reported falling or nearly falling (mean age: 68.3 ± 10.8 years; MMSE: 27.6 ± 4.5) | Less falls with donepezil than when taking placebo (p = 0.049). Subjects with the most falls at baseline tended to show the largest improvements. No differences in Activities of Balance Confidence Scale, Berg Balance Scale, UPDRS III or MMSE scores |
| Beauchet et al. (2011) | Before–after design | Memantine mean dose of 20 mg/day in the morning - titrated in 5 mg increments over 4 weeks | 211.0±78.2 days | 17 patients with AD (mean age 83.8±5.8 years; 52.9% women; MMSE at baseline: 14.5±4.2) and 32 age- and gender-matched control patients with AD without any anti-dementia drug (mean age 80.0±6.6 years; 56.3% women; MMSE at baseline: 23.2±5.3) | Stride time variability decreased (improved) during follow-up in the memantine group (6.3±6.1 versus 3.6±1.3, P=0.038) |
Note: AD: Alzheimer’s disease; EF: Executive function; MCI: Mild cognitive impairment; MMSE: Mini Mental State Examination; MoCA: Montreal Cognitive Assessment; MPH: Methylphenidate; PD: Parkinson’s disease; UPDRS: Unified Parkinson’s Disease Rating Scale. Adapted with permission from Segev-Jacubovski et al [56].