Efficacy of Rivastigmine in Patients With Down Syndrome

Status Completed

Clinical Trial Summary

This study is to understand the efficacy on language and cognitive function in Down syndrome patients who take Rivastigmine.

Clinical Trial Description

Down syndrome (DS) is the most common cause of mental retardation due to chromosome anomaly. Besides defects in cognition, DS patients after 30 yeas old will have early dementia. Etiology of early dementia is known to be related with APP gene dosage triplication that is similar to the neuropathological change in Alzheimer disease (AD). It has been known that the cognitive degeneration in AD is related with decrement of cholinergic neurons in the brain. And the clinical improvement or delay in degeneration of cognitive function after utilization of cholinesterase inhibitor had been observed in mild to moderate AD patients. In DS brain, it has been also noted to be lower acetylcholine, supporting the relationship of pathology between DS and AD. Since 1999, Kishnani et al started to treat adult DS patients with cholinesterase inhibitor (Donepezil). Data showed the improvement of cognition and life quality in DS patients with dementia. Recently, data showed the low cholinergic neuron in DS brain might be a cause of cognitive dysfunction in DS. Therefore, early treatment of cholinesterase inhibitor in DS patients had been proposed to alleviate cognitive dysfunction. Since 2004, Kishnani et al started to treat DS children with Donepezil and Rivastigmine. Some patients showed improvement of language ability, memory, and attention. We are going to conduct a randomized, double-blind, placebo-controlled, crossover design, 12-month trial. Subjects who are enrolled in this study will be randomized into two groups. Each group will receive Rivastigmine and placebo in different order for 6 months. Neuropsychological assessment including Vineland Adaptive Behavior Scales and NEPSY will be evaluated before and after medication. Through this, we wish to understand the efficacy of this drug in the role of improving cognitive functioning in our patients. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT00748007
Study type	Interventional
Source	National Taiwan University Hospital
Contact
Status	Completed
Phase	N/A
Start date	January 2008
Completion date	December 2009

View Details

See also
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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.