Information NGP 555 NGP 555 is a small-molecule modulator of γ-secretase and has been successful in achieving good oral absorption, brain penetration, CNS activity, and specificity for a lipid-based membrane target preclinically. Targets γ-secretase (Cell-free assay) In vivo NGP 555 has very good brain penetratiobsorption, distribution, metabolism, and excretion (ADME) properties. It efficiently crosses the blood-brain barrier, has a brain:plasma ratio of 0.93 (in Tg2576 mice) and shows in vivo efficacy for lowering the biomarker Aβ42 in rodent studies for brain and plasma. Chronic administration of NGP 555 (milled into chow) to Tg2576 mice results in a significant reduction of amyloid plaques. Cell Research(from reference) Cell lines：SH-SY5Y-APP cells Concentrations：10 nM-100 μM Incubation Time：18 h