Controlled drug delivery system for treatment of neural disorders
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United States of America Patent
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Nov 28, 1989
Grant Date -
N/A
app pub date -
Apr 29, 1987
filing date -
Apr 29, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a method and composition for treatment of ischemic, metabolic, congenital, or degenerative disorders of the central or peripheral nervous system. The composition is formed by encapsulation within an implantable biocompatible polymeric device of one or more compounds which have the effect or replacing or stimulating functions of the nervous system. A variety of biocompatible polymers including both biodegradable and non-degradable polymers can be used to form the implants. An essential feature of the composition is linear release, achieved through manipulation of the polymer composition and form. The selection of the shape, size, drug, polymer, and method for implantation are determined on an individual basis according to the disorder to be treated and the individual patient response. A plethora of neurally active substances can be used to treat or manipulate neurological disorders, including Parkinson's Disease, particularly the subset which is refractory or poorly responsive to existing therapies; Alzheimer's Disease; Huntington's Disease; and trauma, such as spinal cord injury.
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