title: Open study of Madopar HBS, a new formulation of levodopa with benserazide, in 13 patients with Parkinson's disease and 'on-off' fluctuations.
abstract: In a open study in 13 patients with Parkinson's disease with 'on-off' fluctuations, all (n = 3) or part (n = 10) of the usual intake of levodopa (with peripheral decarboxylase inhibitor) was replaced by Madopar HBS for 5-122 days (median 35). Time 'off' increased in 2 of the 3 monotherapy subjects. With combined therapy, time 'on' was increased in 6, unchanged in 2 and reduced in 2. However, 11 of the 13 patients complained of reduced predictability of clinical response with Madopar HBS. Only 4 of the 13 patients preferred to continue with combined standard plus HBS treatment; this continued treatment led to an increase in time 'on' in 3 and a decrease in involuntary movements in 3 patients. Two of these four patients benefited on both counts.
authors.affiliation: University Department of Neurology, Institute of Psychiatry, London, UK.
authors.forename: N P
authors.initials: NP
authors.lastname: Quinn
authors.forename: M H
authors.initials: MH
authors.lastname: Marion
authors.forename: C D
authors.initials: CD
authors.lastname: Marsden
mesh_terms: D000328:Adult; D000368:Aged; D001545:Benserazide / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D004305:Dose-Response Relationship, Drug; D004338:Drug Combinations / Q000493:pharmacokinetics / Q000627:therapeutic use; D005260:Female; D006801:Humans; D006834:Hydrazines / Q000627:therapeutic use*; D007980:Levodopa / Q000008:administration & dosage / Q000493:pharmacokinetics / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009069:Movement Disorders / Q000188:drug therapy* / Q000209:etiology; D010300:Parkinson Disease / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D003692:Delayed-Action Preparations; D004338:Drug Combinations; D006834:Hydrazines; C005177:benserazide, levodopa drug combination; D007980:Levodopa; D001545:Benserazide