Within the Types dimension, the ALS treatment market is stratified by therapeutic modality, each influencing adoption curves and pricing dynamics. Small‑molecule drugs (e.g., riluzole) dominate legacy spend, benefitting from established manufacturing and generic competition, yet still represent a stable base of ~30% of total sales. Gene‑therapy platforms, leveraging viral vectors to deliver functional SOD1 or C9orf72 genes, are emerging as high‑value assets, projected to capture ~20% as clinical data mature. Antisense oligonucleotides (ASOs), designed to silence pathogenic transcripts, occupy ~15% of the market, reflecting recent FDA approvals and targeted patient subsets. Stem‑cell and regenerative approaches remain exploratory, contributing ~10% through clinical‑trial funding and compassionate‑use programs. Finally, Immunotherapy strategies—modulating neuroinflammation—are nascent, accounting for ~5%, but anticipated to expand as biomarker‑driven trials progress. This taxonomy clarifies how each type underpins distinct revenue streams, informing investment and R&D prioritization across the ALS treatment landscape.