18-month Double-blind, Randomized, Placebo-controlled, Multicenter, Phase 3 Study to Evaluate the Safety and Efficacy of Oral Nizubaglustat (AZ-3102) in Late-infantile and Juvenile Forms of Niemann-Pick Type C Disease and in Late-infantile and Juvenile-onset Forms of GM1 Gangliosidosis or GM2 Gangliosidosis

This is a Phase 3 randomized, double-blinded, placebo-controlled study that will evaluate the safety and efficacy of oral nizubaglustat (AZ-3102) in multiple disease areas using a Master Protocol Research Program. Participants are randomized to different subprotocols based on disease type: Niemann-Pick type C (NPC), GM1 gangliosidosis or GM2 gangliosidosis. Treatment specific procedures will be described in the disease-specific subprotocol. Individual subprotocols may have additional eligibility requirements, safety and efficacy procedures, or endpoints, which will be described in the corresp…