FDA Okays Dexcom G7 Continuous Glucose Monitoring System

Miriam E. Tucker


December 08, 2022

The US Food and Drug Administration (FDA) has cleared the Dexcom G7 continuous glucose monitoring (CGM) system for people with all types of diabetes aged 2 years and older, and for use during pregnancy.

The G7 has several improvements over the current G6 model, including a 60% smaller size, a 30-minute warm-up period (compared with 2 hours), an all-in-one sensor and transmitter (as opposed to the two separate devices), a mean absolute relative difference (compared with a standard, an assessment of accuracy) of 8.2% (compared with 12.8%), a 12-hour grace period (in contrast to the G6's hard shutoff), and a redesigned mobile app.

It is indicated for wear on the back of the upper arm for people aged 2 years and older or the upper buttocks for ages 2-17 years old.

As an "integrated" CGM, the G7 has the capacity to work as part of automated insulin delivery systems, but that will require further FDA action. "Dexcom is working closely with its insulin pump partners to integrate Dexcom G7 into current and future automated insulin delivery systems as quickly as possible," the company said in a statement.

Like the G6, it requires no fingersticks, scanning, or calibration. It provides real-time glucose readings every 5 minutes to a compatible device, including Apple Watch and other digital health apps, and allows for remote monitoring of data by as many as 10 followers.

Dexcom expects to initiate a US launch of Dexcom G7 in early 2023. To facilitate immediate access to G7 for as many users as possible, the company will have accessible cash pay options in place as the company transitions coverage with availability for G7, the statement says.

The Dexcom G7 was granted a CE Mark (Conformité Européenne) in March 2022, which means it is approved for use in people with diabetes aged 2 years and older, including pregnant women, in Europe.

Miriam E. Tucker is a freelance journalist based in the Washington, DC, area. She is a regular contributor to Medscape, with other work appearing in The Washington Post, NPR's Shots blog, and Diabetes Forecast magazine. She is on Twitter: @MiriamETucker.

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