Rare Neurological Diseases

Narcolepsy is a rare, chronic, debilitating neurological disorder characterized by excessive daytime sleepiness, cataplexy, a sudden loss of muscle control triggered by emotions, and hallucinations. Two types of narcolepsy are currently recognized according to the ICSD3 diagnostic criteria, Type 1 and 2. Type 1 is associated with cataplexy and a reduction in hypocretin-1 levels, whereas Type 2 is not associated with cataplexy. Currently, no drugs have been officially approved by the National Medical Products Administration (NMPA) in China for the treatment of narcolepsy. There is a high unmet medical need for the treatment of narcolepsy patients with and without cataplexy in China.