FHND1002 for ALS Treatment: Phase 2

Investigational oral granules containing 100mg FHND1002 (chemical entity: 3-n-butylphthalide derivative). Administered once daily for 48 weeks. Granules are packaged in unit-dose sachets with identical appearance across all study arms. Participants dissolve contents in water prior to ingestion. Stability testing confirms compatibility with fasting or fed conditions.

Investigational oral granules containing 200mg FHND1002 (3-n-butylphthalide derivative). Delivered as two 100mg sachets or one 200mg sachet to maintain blinding. Daily dosing regimen for 48 weeks. Granule composition matches 100mg formulation in excipients and organoleptic properties.

Placebo granules identical to active intervention in appearance, taste, packaging, and administration method. Contains inert excipients (microcrystalline cellulose, lactose monohydrate) without active