Cajal Neuroscience, a Seattle startup taking a unique approach to developing treatments for neurodegenerative diseases like Alzheimer’s and Parkinson’s, revealed more details about its strategy and announced $96 million in funding Tuesday. Biopharma companies have spent billions of dollars over decades on failed trials for Alzheimer’s directed at just one target, amyloid-beta. The one drug available against that target, Biogen’s Aduhelm, was approved in the U.S. based on limited data and has not been commercially successful. There are numerous potential unexplored drug targets for neurodegenerative diseases, said Cajal CEO Ignacio Muñoz-Sanjuán in an interview with GeekWire.