Perampanel, a novel, noncompetitive, selective AMPA-receptor antagonist demonstrated evidence of efficacy in reducing motor symptoms in animal models of Parkinson's disease (PD). We assessed the safety and efficacy of perampanel for treatment of "wearing off" motor fluctuations in patients with PD. Patients (N = 263) were randomly assigned to once-daily add-on 0.5, 1, or 2 mg of perampanel or placebo. The primary objective was to determine whether there was a dose-response relationship for efficacy among the 3 perampanel doses and placebo. The primary efficacy endpoint for each treatment was measured as the least-squares (LS) mean change from baseline to week 12 in percent "off" time reduction during the waking day, as recorded by patient diaries. The primary efficacy analysis was a 1-sided Williams test for dose-response trend at the 0.025 level of significance. At week 12, dose-response trends, as determined by the Williams test, were not statistically significant for LS mean reduction in percent "off" time during the waking day (P = 0.061, with significance defined as P
Male sex, increased comorbidity and age more than 85 years could be considered with lower functional recovery capacity potential after hip fracture, and thus should be individually assessed and continuously monitored. Functional status estimation by BBS could be taken as a sensitive predictive value for the evaluation of functional improvement in these patients.
Pseudophakic lens status and axial length < 25 mm are independent predictive factors for macula-OFF RD. While pseudophakic lens status is a recognized risk factor for RD, shorter axial length has not been previously identified as a risk factor for the macula-OFF RD.
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