An Extension Study to Evaluate the Long-Term Safety and Durability of Effect of LUM001 in the Treatment of Cholestatic Liver Disease in Subjects With Alagille Syndrome (ALGS)

Dosing of LUM001 also known as Maralixibat (MRX) with the objective of achieving optimal control of pruritus at a dose level that is tolerated by the participant and up to a maximum daily dose of 560 micrograms per kilogram (mcg/kg).