Cyclerion Therapeutics, Inc. announced the appointment of Errol De Souza, Ph.D., to its board of directors. Dr. De Souza is currently the executive chairman of Bionomics Limited and a member of the board of directors of Royalty Pharma and Catalyst Biosciences. Previously, Dr. De Souza founded Neurocrine Biosciences, Inc., served as CEO of numerous publicly traded and private companies, including Biodel, Inc., Synaptic Pharmaceutical Corp., Archemix Corp. and Neuropore Therapies, Inc. In addition, he led CNS R&D at DuPont Merck and US R&D at Aventis.