View clinical trials related to Parkinson's Disease.
Filter by:To determine the effects of the NMDA antagonist, CP-101,606, in subjects with Parkinson's Disease
The study is designed to measure the difference of dopamine turnover rate measured by Fluoro-Dopa-PET in the putamen between patients with Parkinson's disease treated with cabergoline and levodopa for 3 months. The study protocol includes an initial Fluoro-Dopa-PET scan before treatment and after three months double-blind treatment with cabergoline or levodopa. The hypothesis for this study is that the dopamine turnover rate is a more sensitive marker for the early diagnosis of Parkinson's disease compared to the standard Fluoro-Dopa-PET measuring only the Fluoro-Dopa uptake into the striatum. For the interventional part of the study, the hypothesis is that levodopa has larger effects on striatal dopamine turnover compared to dopamine agonists by providing more dopamine precursor. Enhancement of compensatory mechanisms for dopamine loss in early PD such as increased dopamine turnover could have several beneficial implications such as improvement or prolongation of symptomatic treatment responses, but might also produce therapeutic problems such as the development of levodopa-induced motor complications.
This study examines the effect of treatment of levodopa/entacapone on quality of life, as measured by the Parkinson's Disease-Questionnaire 8 (PDQ-8), in Parkinson's disease patients with no or minimal, non-disabling motor fluctuations.
To test whether Parcopa, a new Orally Disintegrating Tablet of Carbidopa-Levodopa, has a faster onset of action, changes in the UPDRS Motor Exam score at intervals after a single dose of Parcopa or Sinemet are being compared in 10 subjects with Parkinson's disease. Subjects 40 years or older having idiopathic PD with Hoehn and Yahr state II or III are eligible if taking a stable dose of < 200 mg carbidopa and < 2000 mg levodopa daily. At both treatment visits, either Parcopa or Sinemet, plus a placebo of the opposite tablet (ODT or conventional) are administered. The dose is the same as the subject's prestudy regimen. The primary efficacy variable, time to onset of action, is the first postdose time when a 30% decrease (30% improvement) in the total score is achieved. All UPDRS evaluations are done by a rater blinded to the active treatment received by the subject.
The objective of this trial was to assess subject preference for PARCOPA, carbidopa/levodopa Orally Disintegrating Tablets (ODT), compared with conventional carbidopa/levodopa tablets, in subjects with stable Parkinson's disease.
The purpose of this study is to achieve approval for the use of carbidopa/levodopa/entacapone in early Parkinson's disease (PD) by demonstrating that when used as initial levodopa therapy in early PD, carbidopa/levodopa/entacapone provides significantly greater symptomatic benefit than immediate release carbidopa/levodopa administered at the same levodopa dosage level of 100 mg three times a day (t.i.d.).
This study is a multicenter, randomized, double-blind, placebo controlled, parallel group study of a seven-week ascending dose period of SLV308 adjunctive to L-dopa treatment in patients with advanced stage Parkinson's disease (PD) and dose-dependent motor fluctuations. Patients (outpatients) will be randomized to one of three different treatment arms.
This study assesses dopamine transporter density using single photon emission computed tomography (SPECT) brain imaging with an investigational radiopharmaceutical, [123I]ß-CIT, in research participants with Parkinson's disease.
The purpose of this study is to evaluate the safety and efficacy of three target doses of melperone compared to placebo in the treatment of psychosis associated with Parkinson's disease. Subjects will be enrolled at approximately 20 investigational sites in the United States (U.S.) and 15 Ex-US sites. The maximum study duration will be 10 weeks. Subjects will have the option of continuing in an open-label extension study.
The purpose of the research study is to determine the effects of two different kinds of speech treatment on certain behaviors in individuals with parkinson's disease. These behaviors include speech, voice, related communication behaviors, swallowing and body movement.