There is a growing body of evidence about the usefulness of CGM in glucose control. The CGM resource center website has a useful library listing key studies on Dexcom CGM. (You need to register on the site to get access). Relevant studies include:
Continuous Glucose Monitoring: An Endocrine Society Clinical Practice Guideline David C. Klonoff, Bruce Buckingham, Jens S. Christiansen, Victor M. Montori, William V. Tamborlane, Robert A. Vigersky and Howard Wolpert The Journal of Clinical Endocrinology & Metabolism October 1, 2011 vol. 96 no. 10 2968-2979
Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group. The effect of continuous glucose monitoring in well-controlled type 1 diabetes. Diabetes Care 2009;32(8):1378-1383.
Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group. Factors predictive of use and of benefit from continuous glucose monitoring in type 1 diabetes. Diabetes Care. 2009; 32(11):1947-1953. Factors predictive of use and of benefit from continuous glucose monitoring in type 1 diabetes
Juvenile Diabetes Research Foundation Continuous Glucose Monitoring Study Group. Sustained benefit of continuous glucose monitoring on A1C, glucose profiles, and hypoglycemia in adults with type 1 diabetes. Diabetes Care. 2009; 32(11):2047-2049.
Bergenstal, RM; Tamorlane, WV; Ahmann, A, et al. Effectiveness of Sensor-Augmented Insulin Pump Therapy in Type 1 Diabetes. New England Journal of Medicine. June 29, 2010.
O’Connell, MA; Donath, S; O’Neal, DN; et al. Glycemic impact of patient-led use of sensor-guided pump therapy in type 1 diabetes: a randomized controlled trial. Diabetologia. 2009;52(7):1250-1257.
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