Breakthrough synapse-regenerating ALS pill moves to phase 2 human trials
A once-daily ALS pill designed to rebuild neural connections — not just slow their loss — has cleared FDA approval to begin Phase 2 trials, with patients across the U.S. starting doses in April 2024. SPG302 works on synapses, the tiny junctions where neurons talk to each other, which start vanishing before motor neurons themselves die. Every ALS drug currently on the market aims to slow decline; this one is being tested for whether it can actually help recover lost function. For the roughly 30,000 Americans living with ALS, that’s a genuinely different question to be asking. If it works, it could reshape how researchers approach neurodegenerative disease far beyond ALS.









