Discovery of BIIB042, a Potent, Selective, and Orally Bioavailable γ-Secretase Modulator
作者:Hairuo Peng、Tina Talreja、Zhili Xin、J. Hernan Cuervo、Gnanasambandam Kumaravel、Michael J. Humora、Lin Xu、Ellen Rohde、Lawrence Gan、Mi-young Jung、Melanie N. Shackett、Sowmya Chollate、Anthone W. Dunah、Pamela A. Snodgrass-belt、H. Moore Arnold、Arthur G. Taveras、Kenneth J. Rhodes、Robert H. Scannevin
DOI:10.1021/ml200175q
日期:2011.10.13
We have investigated a novel series of acid-derived gamma-secretase modulators as a potential treatment of Alzheimer's disease. Optimization based on cellular potency and brain pharmacodynamics after oral dosing led to the discovery of 10a (BIIB042). Compound 10a is a potent gamma-secretase modulator, which lowered A beta 42, increased A beta 38, but had little to no effect on A beta 40 levels both in vitro and in vivo. In addition, compound 10a did not affect Notch signaling in our in vitro assessment. Compound 10a demonstrated excellent pharmacokinetic parameters in multiple species. Oral administration of 10a significantly reduced brain A beta 42 levels in CF-1 mice and Fischer rats, as well as plasma A beta 42 levels in cynomolgus monkeys. Compound 10a was selected as a candidate for preclinical safety evaluation.