Benzazepine derivatives, compositions, and methods for treating cognitive impairment

Abstract

Benzazepine derivatives, compositions comprising therapeutically effective amounts of those benzazepine derivatives and methods of using those derivatives or compositions in treating cognitive impairment associated with central nervous system (CNS) disorders or associated with risk factors for cognitive impairment. In particular, it relates to the use of a α5-containing GABAR agonist (e.g., a α5-containing GABAR positive allosteric modulator) in treating cognitive impairment associated with central nervous system (CNS) disorders or having a risk factor associated with cognitive impairment in a subject in need or at risk thereof, including, without limitation, subjects having or at risk for age-related cognitive impairment, Mild Cognitive Impairment (MCI), amnestic MCI (aMCI), Age-Associated Memory Impairment (AAMI), Age Related Cognitive Decline (ARCD), dementia, Alzheimer's Disease (AD), prodromal AD, post-traumatic stress disorder (PTSD), schizophrenia, bipolar disorder, amyotrophic lateral sclerosis (ALS), cancer-therapy-related cognitive impairment, mental retardation, Parkinson's disease (PD), autism spectrum disorders, fragile X disorder, Rett syndrome, compulsive behavior, and substance addiction. It also relates to the use of a α5-containing GABAR agonist (e.g., a α5-containing GABAR positive allosteric modulator) as described herein in treating brain cancers (including brain tumors, e.g., medulloblastomas), and cognitive impairment associated therewith.