Active clinical trials for "Parkinson Disease"

This study will evaluate the safety and efficacy of two dose levels of pimavanserin (ACP-103) compared to placebo in patients with Parkinson's disease psychosis.

The primary objective of this study was to demonstrate the superiority of levodopa - carbidopa intestinal gel over treatment with optimized oral levodopa/carbidopa during 12 weeks.

The purpose of this study is to determine whether there is a benefit to giving a dopamine agonist to a patient with Parkinson's disease who is already being treated with levodopa.

This is a phase III, multicenter, randomized, double-blind, parallel group, placebo-controlled study to compare the efficacy of 6-months therapy of ropinirole Prolonged Release (PR) with that of placebo as adjunctive therapy to L-dopa in Parkinson's disease patients not optimally controlled on L-dopa. This study will be conducted in China. Subjects will have total 14 visits over the 26 week duration of the study. Following screening, eligible subjects will receive study medication during the fourteen day placebo run-in period which they will be instructed to take in addition to their background L-dopa. If subjects are still eligible at the end of the placebo run-in period they will be randomized (1:1) to receive once daily doses of ropinirole PR or identical appearing placebo tablets. Dosing will start at 2 mg ropinirole PR, or placebo equivalent. During the 24 week treatment phase, the subjects dose will be adjusted according to the recommended schedule to achieve symptomatic control. All subjects must be titrated to a minimum dose of 6 mg/day. If sufficient symptomatic control is not achieved or maintained at a dose of 6mg/day of ropinirole PR, the daily dose should be increased by 2mg at weekly or longer intervals up to a dose of 8mg/day.If sufficient symptomatic control is still not achieved or maintained at a dose of 8mg/day of ropinirole PR, the daily dose should be increased by 4mg at two weekly or longer intervals. Further dose titration should not be conducted within the final 8 weeks of the treatment phase. The maximum recommended daily dose is 24mg. The planned reduction in L-dopa dose will begin once subjects are titrated to Dose Level 4 or Dose Level 5 of study medication. For each increase in study medication, there will be a corresponding decrease in L-dopa. If loss of symptom control occurs with the reduction in the background L-dopa dose, the dose of study medication should be increased to the next higher dose level with no adjustment in the dose of L-dopa. If loss of symptom control persists, subjects should be titrated up an additional dose level. Subjects who do not experience an improvement in symptoms following upward titration by 2 dose levels of study medication, should be "rescued" with L-dopa. Subjects will be dispensed down-titration medication at the study completion/early withdrawal visit if the patient did not enter extension study and should be scheduled to return for a follow up visit 4 to 14 days after the last dose of study medication. The extension study aim to evaluate the safety profile of ReQuip PR during long-term treatment in subjects with advanced parkinson's disease.

This study is to evaluate the efficacy of a range of preladenant doses compared with placebo in participants with moderate to severe Parkinson's disease (PD) experiencing motor fluctuations and receiving a stable dose of levodopa (L-dopa), as measured by "off" time. Participants will continue to receive their stable regimen of L-dopa plus any adjunct medications during the study as prescribed by their physician. Several classes of adjunct medications may be used, including Amantadine, anticholinergics, dopa decarboxylase inhibitors, and dopamine agonists. Primary Hypothesis: At least the 10 mg twice daily dose of preladenant is superior to placebo as measured by the change from Baseline to Week 12 in the mean "off" time.

This study will be carried out to determine the effectiveness of in-home computer games played by a person with Parkinson's disease for 50 minutes 3 times a week on measures of standing and walking balance.

The purpose of the research study is to determine if rasagiline is an effective treatment for fatigue in patients with Parkinson's disease (PD).

This is a study to evaluate the effects of an investigational drug, Droxidopa, in participants with neurogenic orthostatic hypotension (NOH), associated with Parkinson's disease. Droxidopa is being studied to determine the effects on blood pressure changes upon standing up (orthostatic challenge). Symptoms and activity measurements, including patient reported falls, will be evaluated to determine the effectiveness of the study drug. Symptoms of NOH may include any of the following: Dizziness, light-headedness, feeling faint or feeling like you may blackout Problems with vision (blurring, seeing spots, tunnel vision, etc.) Weakness Fatigue Trouble concentrating Head & neck discomfort (the coat hanger syndrome) Difficulty standing for a short time or a long time Trouble walking for a short time or a long time The study duration is a maximum of approximately 14 weeks including up to 2 weeks for screening, up to 2 weeks for proper dose finding, followed by an 8 week treatment period and a follow-up visit after 2 weeks. A sufficient number of patients will be screened to allow approximately 211 randomized patients. An extension study is also available to continue treatment if determined appropriate by the study doctor. This Study is NCT01132326 sponsored by Chelsea Therapeutics and is enrolling by invitation only.

The purpose of this study is to determine the effectiveness of occupational therapy in Parkinson's disease.

Parkinsons Disease (PD) is caused by a decrease of dopamine in a particular part of the brain. Dopamine is a messenger substance (neurotransmitter) that is used by the cells of the brain (nerve cells) to control and harmonize muscle movements. Consequently, the main manifestations of the disease affect movement and include tremor, muscular rigidity, slowness in performing movements and loss of balance. However, the disease affects also other, non motor functions and may cause other disorders, such as depression. Depression may be a reaction to the disability caused by the disease, but many studies show that depression is more common in PD than in other chronic debilitating illnesses. Moreover, there is also a biological explanation for the phenomenon: dopamine is also used in brain circuits involved in the experience of pleasure, and loss of pleasure in daily physical or social activity is one of the key manifestations of depression. The objective of the study is to assess whether pramipexole, at doses approved for the treatment of PD symptoms, is more effective than placebo in resolving depressive symptoms in PD patients. Also data on the safety of the product in the disease will be collected.