Modal plots of diurnal glucose during masked and unmasked use of the FreeStyle Navigator Continuous Glucose Monitoring System®

The FreeStyle Navigator® Continuous Glucose Monitoring System, an investigational device, was evaluated in a multi-center study under home use conditions over 40 days of continuous sensor wear. The FreeStyle Navigator system consists of a disposable subcutaneous sensor that can be worn up to 5 days, a reusable transmitter attached to the sensor, and a handheld receiver with a built-in FreeStyle blood glucose (BG) meter. Real-time data and alarms were masked for the first 20 days and were unmasked for the next 20 days. The objective of this analysis was to compare glucose patterns during masked and unmasked use o…