title: Comparative efficacy of two oral sustained-release preparations of L-dopa in fluctuating Parkinson's disease. Preliminary findings in 20 patients.
abstract: 20 patients with Parkinson's disease and a fluctuating response to chronic treatment with conventional L-dopa preparations participated in an open randomized trial comparing two sustained-release L-dopa preparations (Madopar HBS, Sinemet CR4). While a majority (15 patients, 7 on Madopar HBS and 8 on Sinemet CR4) showed a favourable response after 2 months of slow-release L-dopa treatment the clinical benefit remained stable in only 2 patients on Madopar HBS and 3 patients on Sinemet CR4 over the entire follow-up period of 12 months. Reasons for treatment failure were increased peak-dose or biphasic dyskinesias or prolonged "off"-periods. This preliminary study failed to demonstrate clinically significant advantages of one slow-release principle over the other.
authors.affiliation: Universitäts-Klinik für Neurologie, Innsbruck, Austria.
authors.forename: B
authors.initials: B
authors.lastname: Kleedorfer
authors.forename: W
authors.initials: W
authors.lastname: Poewe
mesh_terms: D001545:Benserazide / Q000008:administration & dosage* / Q000627:therapeutic use; D002230:Carbidopa / Q000008:administration & dosage* / Q000627:therapeutic use; D003692:Delayed-Action Preparations; D004338:Drug Combinations; D005500:Follow-Up Studies; D006801:Humans; D007980:Levodopa / Q000008:administration & dosage* / Q000627:therapeutic use; D010300:Parkinson Disease / Q000188:drug therapy* / Q000503:physiopathology
chemical_list: D003692:Delayed-Action Preparations; D004338:Drug Combinations; C005177:benserazide, levodopa drug combination; C009265:carbidopa, levodopa drug combination; D007980:Levodopa; D001545:Benserazide; D002230:Carbidopa