ABOUT THE ALS THERAPY DEVELOPMENT INSTITUTE
We are the Drug Discovery Engine for ALS. Founded in 1999, the ALS Therapy Development Institute (ALS TDI) is the world’s largest nonprofit biotech dedicated solely to discovering and developing effective treatments for ALS.

We operate like a true biotech — running rigorous preclinical studies, advancing drug candidates through the pipeline, and partnering with pharma and academic institutions to move discoveries from the lab into clinical trials. We’ve tested more drugs in ALS models than any other research organization on earth. As a 501(c)3 nonprofit, we answer only to the ALS community. We’re funded by people with ALS and their friends and families, with 87 cents of every dollar going directly to research.

Our mission is simple: ensure that everyone with ALS has access to effective treatments. We won’t stop until that’s true.