Comparison of Modafinil & Methylphenidate in Treatment of Excessive

Status Withdrawn

Clinical Trial Summary

This is an open-label cross-over randomized control study comparing the effect of modafinil and methylphenidate in patients with Parkinson's disease with excessive daytime sleepiness.

Clinical Trial Description

Sleep disorders are common in Parkinson's disease (PD) and a significant cause of impairment of function in already disabled individuals. Almost all patients with PD report disturbed sleep, including excessive daytime sleepiness (EDS), disorders of initiating and maintaining sleep (DIMS) or parasomnias.1 The underlying pathology associated with PD and medication effects have both been implicated in the sleep disorders affecting these patients. EDS has become the focus of attention because of its effect on quality of life and impairment in driving and predisposition to traffic accidents. Its prevalence has been estimated between 15-50%. Treatment of EDS has become an important factor in the management of the PD patient, and the recent introduction of modafinil, a wakefulness promoting agent approved for narcolepsy, has led to increasing off-label use of this agent. Prior to modafinil, amphetamine and methylphenidate, two classical psychostimulants, were the agents of choice in treating EDS. However, these agents also have a direct effect on the dopaminergic system. They increase both sleep and REM latency, while reducing total sleep time and REM sleep. By comparison, the mechanism of action of modafinil is unknown, yet distinct from that of the psychostimulants. A direct comparison of the effect on EDS of modafinil with classical psychostimulants is lacking. The overall goals of this research proposal are to determine which agent is most effective in treating EDS in PD patients by using an open-label randomized control study comparing efficacy, onset of action and tolerability. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00393562
Study type	Interventional
Source	VA Office of Research and Development
Contact
Status	Withdrawn
Phase	N/A
Start date	March 2006
Completion date	October 2007

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Comparison of Modafinil and Methylphenidate in Treatment of Excessive Daytime Sleepiness in Patients With Parkinson's Disease

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms