Cassava Sciences, Inc. develops drugs for nervous system disorders in the United States. It engages in developing FENROCK, a proprietary abuse-deterrent transdermal pain patch for pain relief; PTI-125, a small molecule drug candidate to treat Alzheimer's disease; and PTI-125DX, a blood-based diagnostic/biomarker to detect Alzheimer's disease. The company was formerly known as Pain Therapeutics, Inc. and changed its name to Cassava Sciences, Inc. in March 2019. Cassava Sciences, Inc. was founded in 1998 and is based in Austin, Texas.