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URL: http://www.pd-doc.org/Databases/LinkedDatabases/PSGDatabases/ELLDOPAStudy/tabid/161/Default.aspx
Proper Citation: Earlier versus Later Levodopa Therapy in Parkinson Disease (RRID:SCR_001150)
Description: THIS RESOURCE IS NO LONGER IN SERVICE, documented August 23, 2016. This site has a dataset from the ELLDOPA study: a multicenter, placebo-controlled, randomized, dose-ranging, double-blind clinical trial of 361 early, mild Parkinson's disease (PD) subjects, not requiring symptomatic medications with a duration from time of diagnosis less than 2 years. A NINDS funded study. The multicenter, placebo-controlled, randomized, dose-ranging, double-blind clinical trial, called the Earlier versus Later Levodopa Therapy in Parkinson Disease (ELLDOPA) study was run by the Parkinson Study Group and sponsored by the National Institute of Neurological Disorders and Stroke (NINDS). The subjects (n=361) were enrolled between September 1998 and August 2001 at 33 sites in the United States and 5 sites in Canada. Despite the known benefit of levodopa in reducing the symptoms of Parkinsons disease, concern has been expressed that its use might hasten neurodegeneration. This study assessed the effect of levodopa on the rate of progression of Parkinsons disease.The primary analysis assessed the doseresponse relationship between the assigned doses and the worsening of parkinsonism, as indicated by the changes in the total score on the UPDRS between the baseline visit and week 42. Washout of study drug occurred during weeks 40-42.
Resource Type: data or information resource, database
Keywords: ClinicalTrials.Gov: NCT00004733
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