Taking CGM capabilities to a new level
2015: Dexcom launches G5 Mobile
The G5 Mobile was the first device that enables people with diabetes to manage glucose levels via a smartphone. The device was approved for adults and children as young as two years old. The device also supported the “Share” functionality of its predecessor.
2016: Abbott launches FreeStyle Libre Pro
A professional device, the FreeStyle Libre Pro has a lifespan of up to 14 days. As with other professional devices, glucose data are blinded to the patient. A physician using a FreeStyle Libre Pro reader can access multiple patients’ data. The sensor is water-resistant up to 3 feet for up to 30 minutes.
2017: Medtronic wins approval for closed-loop device
When the FDA approved the Guardian Sensor 3 in 2017, it was the first device to automate insulin delivery via a hybrid closed loop system with the Medtronic MiniMed 670G insulin pump. Other CGM/insulin pumps would follow, such as the t:slim X2 insulin pump integration with the Dexcom G6, which won FDA clearance in 2019.
2017: Abbott launches FreeStyle Libre for U.S. patients
The device was the first to be factory-calibrated, meaning that it would not require fingerstick testing. The manufacturer referred to the device as a flash glucose monitor rather than a continuous glucose monitor as it required patients to scan the device before seeing data. The device also did not sound alarms for out-of-range glucose readings. The patient-focused device can be worn for 10 days.
2018: Dexcom launches the G6
The FDA approved the Dexcom G6, which featured several upgrades over preceding models. First, its sensor has a 10-day lifespan like the Abbott FreeStyle Libre. It also does not require fingerstick calibration, although such calibration is supported. The device also features more robust interoperability than preceding models, making it compatible with insulin pumps and mobile apps.