Cơ Chế Tác Dụng : 
								
									MK-8931 is Merck’s investigational oral β-site amyloid precursor protein cleaving enzyme (BACE1 or β secretase) inhibitor. In July 2013, Merck announced positive results for Phase Ib trials of MK-8931. In the study, administration of MK-8931 at doses of 12, 40 and 60 mg resulted in a dose-dependent and sustained reduction in the levels of Ab40, a measure of BACE1 activity, in CSF from baseline of 57, 79 and 84 percent, respectively. MK-8931 is currently in Phase II/III trials.								
								
									The amyloid hypothesis asserts that the formation of amyloid peptides that lead to amyloid plaque deposits in the brain is a primary contributor to the underlying cause of Alzheimer's disease. BACE is believed to be a key enzyme in the production of amyloid β peptide. Evidence suggests that inhibiting BACE decreases the production of amyloid β peptide and may therefore reduce amyloid plaque formation and modify disease progression.								
							
														
														
														
							
																					
								 Chỉ Định : 
								
									Investigated for the treatment of Alzheimer's disease.