Cyted Ltd. received U.S. FDA 510(k) clearance for its Endosign capsule technology, a non-endoscopic capsule sponge device used to collect pan-esophageal samples to detect esophageal pre-cancer and other conditions. The company believes that the minimally invasive test will be able to help prevent deaths from esophageal cancer when offered as a screening test to people on long-term medication for heartburn.