期刊
NEUROLOGY
卷 74, 期 15, 页码 1203-1207出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/WNL.0b013e3181d8c1b7
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资金
- Roche
- Merck
- Amgen
- Boehringer Ingelheim
- Medtronic, Inc.
- Britannia Pharmaceuticals
- Dutch Parkinson Association
Background: Sialorrhea affects approximately 75% of patients with Parkinson disease (PD). Sialorrhea is often treated with anticholinergics, but central side effects limit their usefulness. Glycopyrrolate (glycopyrronium bromide) is an anticholinergic drug with a quaternary ammonium structure not able to cross the blood-brain barrier in considerable amounts. Therefore, glycopyrrolate exhibits minimal central side effects, which may be an advantage in patients with PD, of whom a significant portion already experience cognitive deficits. Objective: To determine the efficacy and safety of glycopyrrolate in the treatment of sialorrhea in patients with PD. Methods: We conducted a 4-week, randomized, double-blind, placebo-controlled, crossover trial with oral glycopyrrolate 1 mg 3 times daily in 23 patients with PD. The severity of the sialorrhea was scored on a daily basis by the patients or a caregiver with a sialorrhea scoring scale ranging from 1 (no sialorrhea) to 9 (profuse sialorrhea). Results: The mean (SD) sialorrhea score improved from 4.6 (1.7) with placebo to 3.8 (1.6) with glycopyrrolate (p = 0.011). Nine patients (39.1%) with glycopyrrolate had a clinically relevant improvement of at least 30% vs 1 patient (4.3%) with placebo (p = 0.021). There were no significant differences in adverse events between glycopyrrolate and placebo treatment. Conclusions: Oral glycopyrrolate 1 mg 3 times daily is an effective and safe therapy for sialorrhea in Parkinson disease. Classification of evidence: This study provides Class I evidence that glycopyrrolate 1 mg 3 times daily is more effective than placebo in reducing sialorrhea in patients with Parkinson disease during a 4-week study. Neurology (R) 2010;74:1203-1207
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