This invention relates to
benzodiazepine derivatives, compositions comprising therapeutically effective amounts of those
benzodiazepine derivatives and methods of using those derivatives or compositions in treating
cognitive impairment associated with
central nervous system (CNS) disorders. In particular, it relates to the use of a α5-containing
GABAA receptor agonist (e.g., a α5-containing
GABAA receptor positive
allosteric modulator) as described herein in treating
cognitive impairment associated with
central nervous system (CNS) disorders 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
GABAA receptor agonist (e.g., a α5-containing GABAA
receptor positive
allosteric modulator) as described herein in treating
brain cancers (including brain tumors, e.g., medulloblastomas), and cognitive impairment associated therewith.