– Asset Purchase Agreement Closed; Cyclerion Received Equity Ownership in Tisento and Upfront Cash Payment – – Tisento Developing Zagociguat in MELAS*, a Rare Primary Mitochondrial Disease with No Approved Therapies, Leveraging Extensive Preclinical and Clinical Data Generated by Cyclerion – CAMBRIDGE, Mass., July 31, 2023 (GLOBE NEWSWIRE) -- Cyclerion Therapeutics, Inc. (Nasdaq: CYCN) and Tisento Therapeutics, Inc. today announced the closing of the previously disclosed asset purchase agreement