VIENNA, July 14 /PRNewswire/ -- EnVivo Pharmaceuticals today announced at the Alzheimer's Association 2009 International Conference on Alzheimer's Disease (ICAD) the reversal of behavioral deficits observed in an Alzheimer's disease transgenic animal model after chronic oral dosing of a proprietary gamma-secretase modulator (GSM). The data was disclosed as part of the preclinical characterization of the development candidate EVP-0962.
EVP-0962 is a proprietary small molecule that belongs to a new generation of potential Alzheimer drugs known as gamma-secretase modulators (GSMs). As a gamma-secretase modulator, EVP-0962 selectively inhibits the production of the toxic AB42 peptide without affecting the total amount of AB. As EVP-0962 does not affect other gamma secretase substrates required for normal function, such as Notch, it is predicted to slow the progression of Alzheimer's disease by reducing the disease-associated toxic AB42 species and to display an intrinsically superior safety profile compared to gamma secretase inhibitors (GSIs).
EVP-0962 selectively reduces the production of AB42 in multiple cell lines and in the brains of normal mice and rats after a single dose. It significantly reduces the production of AB42 in the brains of transgenic mice after two months of daily oral administration. In the same transgenic Alzheimer's disease model, mice developed deficits in the hippocampal memory task known as contextual fear conditioning. Chronic dosing with EVP-0962 reverses these deficits back to normal (wild type) levels. EVP-0962 also displays an excellent safety profile in a 14-day rat toxicology study, confirming suitability for clinical development.
"We are very excited about these findings since they represent to us the first demonstration with a bona fide GSM of functional improvement in an Alzheimer's disease model with concomitant lowering of AB42," said Ke
|SOURCE EnVivo Pharmaceuticals|
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