This application relates to compounds having inverse agonist functional selectivity for GABAA receptors containing the α5 subunit for use as a medicament in the treatment of cognitive impairments in subjects suffering from Down syndrome. The present application also relates to the use of compounds having inverse agonist functional selectivity for GABAA receptors containing the α5 subunit for the preparation of a medicament in the treatment of cognitive impairments in subjects suffering from Down syndrome. The application further relates to pharmaceutical compositions for treating cognitive impairments in subjects suffering from Down syndrome comprising a compounds having inverse agonist functional selectivity for GABAA receptors containing the α5 subunit, or suitable pharmaceutically acceptable salt thereof, a polyethoxylated castor oil and dimethyl sulfoxide (DMSO).
The present application also describes methods for enhancing cognitive function, or treating or lessening the severity of cognitive impairments, in subjects suffering from Down syndrome by administering to a subject in need thereof a pharmaceutically effective amount of one or more compounds having inverse agonist functional selectivity for GABAA receptors containing the α5 subunit. More particularly, the present application is concerned with the treatment of cognitive impairments, such as impairment in memory, learning capacity or both, in subjects suffering from Down syndrome.
本申请涉及对含有α5亚基的
GABAA受体具有反向激动剂功能选择性的化合物,该化合物可用作治疗唐氏综合征患者认知障碍的药物。本申请还涉及对含α5亚基的
GABAA受体具有逆激动剂功能选择性的化合物用于制备治疗唐氏综合征患者认知障碍的药物。本申请还涉及用于治疗唐氏综合征患者认知障碍的药物组合物,该组合物包含对含有 α5亚基的
GABAA受体具有反向激动剂功能选择性的化合物或其合适的药学上可接受的盐、聚氧
乙烯蓖麻油和
二甲基亚砜(
DMSO)。
本申请还描述了通过向有需要的受试者施用一种或多种对含α5亚基的
GABAA受体具有反向激动剂功能选择性的化合物的药学有效量,从而增强唐氏综合征受试者的认知功能,或治疗或减轻认知障碍的严重程度的方法。更具体地说,本申请涉及治疗唐氏综合征患者的认知障碍,如记忆力、学习能力或两者均受损。