Cambridge, Mass., startup Enclear Therapies Inc. has secured $10 million in series A financing led by 20/20 Healthcare Partners. The company is developing a device to aid in treating amyotrophic lateral sclerosis (ALS) and other neurodegenerative diseases by removing toxic proteins from cerebrospinal fluid (CSF).

A single injection of SOD1-targeting RNA into the subpial space, which is below the innermost meningeal layer, was able to spread throughout the spinal cord and, via retrograde delivery, into brain centers that project to the spinal cord in several animal models, including primates.