The Food and Drug Administration yesterday approved the first continuous glucose monitoring system with a fully implantable sensor, designed to measure glucose levels in adults with diabetes for up to 90 days. Once implanted under the skin during an outpatient procedure, the sensor sends information to a mobile app to alert users if glucose levels are too high or too low. “The FDA is committed to advancing novel products that leverage digital technology to improve patient care,” said FDA Commissioner Scott Gottlieb, M.D.