FDA Defers Action on Amicus BLA
FDA has deferred action on an Amicus Therapeutics BLA for cipaglucosidase alfa, the biological component of AT-GAA in late-onset Pompe disease, due to the agency’s inability to conduct a required manufacturing site inspection in China before the PDUFA action date. A company announcement says the inability to conduct the inspection was the only reason cited by FDA for the deferred action. No anticipated new action date was given, Amicus says.
AT-GAA is described as an investigational two-component therapy consisting of cipaglucosidase alfa, a unique recombinant human acid alpha-glucosidase enzyme with optimized carbohydrate structures, administered in conjunction with miglustat, a stabilizer of cipaglucosidase alfa. FDA granted it breakthrough therapy designation to treat late-onset Pompe disease based on clinical efficacy results from a Phase 1/2 clinical study.