Journal
EXPERT OPINION ON INVESTIGATIONAL DRUGS
Volume 13, Issue 12, Pages 1585-1592Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1517/13543784.13.12.1585
Keywords
Alzheimer's disease; amyloid-beta; clioquinol; metal-protein attenuating compounds; neurodegeneration; oxidative stress; subacute myelopathic optic neuritis; therapeutics
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Since the description of the amyloid plaque in the pathology of Alzheimer's disease, one of the main focuses of research has been the role of the amyloid precursor protein metabolite amyloid-P, which is the constituent protein of plaque. Affecting the production, aggregation or clearance of this protein may well have a modifying effect on disease progression. Although available therapies for Alzheimer's disease may interact with amyloid-P in vivo, no conspicuous disease-modifying effect has been demonstrated in clinical trials with these drugs. Drugs whose primary target is not the rectification of the neurotransmitter deficits associated with Alzheimer's disease but rather the life cycle of amyloid-beta are currently being developed with varying degrees of success. Of these drugs, the metal-protein attenuating compounds have currently the most encouraging clinical data supporting their use. Clioquinol is an example from this class, which has recently shown encouraging efficacy from early clinical evaluation in the absence of any compelling evidence of subacute myelopathic optic neuritis, which has been associated with this drug's use in Japanese populations. This article will discuss the scientific rationale behind the use of metal-protein attenuating compounds in Alzheimer's disease and summarise the available clinical trial data.
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