The following is a press release provided by Dexcom, Inc.

SAN DIEGO – March 27, 2018 – DexCom, Inc. (NASDAQ:DXCM), the leader in continuous glucose monitoring (CGM) is pleased to announce that the U.S. Food and Drug Administration (FDA) has granted a De Novo request for the Dexcom G6® CGM System, the newest generation of CGM for people with diabetes ages 2 and up. The Dexcom G6 is indicated by the FDA for use as both a standalone CGM and for integration into automated insulin dosing (AID) systems. The powerful and revolutionary new Dexcom G6® is the first CGM to receive this classification by the FDA.

Along with this authorization, the FDA is establishing criteria, called special controls, which outline requirements for assuring CGM accuracy, reliability and clinical relevance as well as describe the type of studies and data required to demonstrate acceptable CGM performance.

“As a factory-calibrated, real-time CGM system with exceptional accuracy, the Dexcom G6® will be transformative for people with diabetes, who will no longer be required to prick their fingers for diabetes management,” said Daniel DeSalvo, MD, Pediatric Endocrinologist at Texas Children’s Hospital in Houston, Texas. “I can tell you as someone who has Type 1 Diabetes myself, with all of its features and benefits, the Dexcom G6® is the CGM device I have been anticipating for the last twenty years. This CGM system will help to alleviate the burden of diabetes management while improving the lives of people with diabetes.”

New with Dexcom G6®:

· Fingerstick Elimination – No fingersticks are needed for calibration or diabetes treatment decisions.

· Easy Sensor Applicator – Complete redesign of the sensor applicator allows for one-touch, simple insertion.

· Discreet and Low Profile – A redesigned transmitter with a 28% lower profile than previous generation Dexcom CGMs makes the device comfortable and easy to wear under clothing.

· Acetaminophen Blocking – New feature allows for more accurate glucose readings with no medication interference.

· Predictive Low Alert – New alert feature predicts hypoglycemia before it hits to help avoid dangerous low blood sugar events.

· Extended 10-Day Sensor – 10-day sensor allows for 43% longer wear than previous generation Dexcom CGMs.

Dexcom G6® carries forward important features of Dexcom CGM systems:

· Continuous Glucose Readings – Automatically sends glucose readings to a Dexcom receiver or compatible smart device every five minutes.

· Mobile App and Sharing – Compatibility with smart device apps allows for sharing glucose information with up to five people for added support.

· Customizable Alarms and Alerts – Personalized alert schedule immediately warns the wearer of pending dangerous high and low blood sugars.

“Contemporary diabetes technology relies on accuracy and performance, which Dexcom has proven over time. Once again, Dexcom has earned the trust of the research community all over the world,” said Boris Kovatchev, PhD and founding director of the UVA Center for Diabetes Technology. “Innovations like the Dexcom G6® are critical to closing the loop – automated insulin delivery known as the ‘artificial pancreas’.”

“We listen closely to people with diabetes and continuously look for ways to empower them to better manage their condition. The FDA’s special controls set a rigorous, new standard in our industry and clearly define the process by which other CGM systems may be approved.,” said Kevin Sayer, Chief Executive Officer of Dexcom. “We believe the new Dexcom G6® is a significant step forward for Dexcom and our industry.”

The company expects to launch later this year. For more information, visit www.dexcom.com/G6.

Conference Call

The company will host a conference call at 8:00 A.M. Eastern Time on Wednesday, March 28, 2018. To listen to the conference call, please dial (888) 771-4371 (US/Canada) or (847) 585-4405(International) and use the confirmation number “46726870” approximately five minutes prior to the start time.

About CGM

CGM devices are considered the most significant breakthrough in diabetes management in the past 40 years1 and Dexcom has been a leader of those innovations. Diabetes affects nearly 30 million Americans and is the seventh leading cause of death in the United States2. The traditional standard-of-care for glucose monitoring has been a fingerstick meter, which is painful as some patients needed to test their blood up to 12 times a day. CGM is important because, in addition to providing the glucose level, it provides the direction and rate of glucose change with the push of a button and alerts users when glucose levels are too low or too high. People with diabetes who take insulin must monitor their blood glucose levels frequently. Uncontrolled glucose can cause health complications and even death3,4. To learn more about CGM, visit www.dexcom.com.

About DexCom, Inc.

DexCom, Inc., headquartered in San Diego, CA, is dedicated to helping people better manage their diabetes by developing and marketing continuous glucose monitoring (CGM) products and tools for adult and pediatric patients. With exceptional performance, patient comfort and lifestyle flexibility at the heart of its technology, users have consistently ranked DexCom highest in customer satisfaction and loyalty. For more information on the Dexcom CGM, visit www.dexcom.com.

INVESTOR CONTACT:

Steve Pacelli, 858-200-0200

PRESS CONTACT:

James McIntosh, 619-884-2118

References

1. Clarke SF and Foster JR. A history of blood glucose meters and their role in self-monitoring of diabetes mellitus. Br J Biomed Sci. 2012;(3)2:83-93.

2. 2014 National Diabetes Statistics Report. Centers for Disease Control and Prevention. http://www.cdc.gov/diabetes/pubs/statsreport14/national-diabetes-report-web.pdf Accessed March 31, 2015.

3. Hyperglycemia (High blood glucose). American Diabetes Association Web site. http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/hyperglycemia.html. Updated August 5, 2013. Accessed December 3, 2013.

4. Hypoglycemia (Low blood glucose). American Diabetes Association Web site. http://www.diabetes.org/living-with-diabetes/treatment-and-care/blood-glucose-control/hypoglycemia-low-blood.html. Updated July 16, 2013. Accessed December 3, 2013.

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