In this open-label, compassionate extended use study, patients who have completed their participation in an Amylyx sponsored protocol for ALS may be offered compassionate use extension of treatment with AMX0035 under this protocol. Patient currently treated with AMX0035 will continue to receive treatment at their current dose/regimen. Patients who have interrupted AMX0035 for more than 28 days will resume AMX0035 treatment with 1 sachet (oral [or feeding tube]) once a day in the morning to be escalated to twice a day (morning and evening) after approximately 2 weeks on the basis of GI tolerance. Enrolled patients will complete regular outpatient visit approximately every 16 weeks (± 2 weeks). Completion of the ALS functional rating scale (ALSFRS-R) will be optional.
The protocol is intended to provide extended treatment with AMX0035 to patients who previously participated in an Amylyx sponsored study of AMX0035 for ALS.