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Dexcom G7 15 Day: A win for adult patients with diabetes, regardless of insulin use*,1
Dexcom G7 15 Day: Increases TIR and lowers A1C in type 1 diabetes2-11
Dexcom G7 15 Day: Proven results in patients with type 1 diabetes12
Compared to BGM, Dexcom CGM demonstrated significant A1C reduction12
Study design: The COMISAIR-2 study was the 3-year follow-up to the COMISAIR trial which compared the efficacy and safety of long-term regimens of sensor-augmented insulin regimen (SAIR) among individuals. This nonrandomized, prospective, real-world, clinical trial followed 94 participants with type 1 diabetes. The primary end point was the difference in A1C groups after 3 years of follow-up.12
Dexcom CGM is simply the most accurate for your patients with type 1 diabetes.†,8,13
Industry-leading accuracy leads to better results:
overall MARD8,13
94.3% of readings
are within clinical accuracy standards14
90.3% accuracy from insertion
consistent from Days 1 to 1514
-0.9% reduction in A1C vs. BGM
in type 1 diabetes in DIAMOND (older adults subanalysis)15
>2.6 hours
more time in range daily§,16
72%reduction in hypoglycemia
and 50%+ reduction in nighttime glycemic events||,17
The evidence is clear: Dexcom CGM is a win in the management of type 1 diabetes
CGM delivers greater A1C reduction, increased time in range, fewer hypoglycemic events, and improved quality of life.5-7,9,17-19
| Study/Source | Population | Key Outcomes (CGM vs. BGM) |
|---|---|---|
| DIAMOND study | Adults with type 1 diabetes (MDI) | A1C REDUCTION: -1.0% vs. -0.4%; significant reduction in hypoglycemia¶,5,20 |
| GOLD randomized clinical trial | Type 1 diabetes (various ages) | Three times as many achieved >1.0% A1C reduction; 80% fewer hypoglycemic events21 |
| COMISAIR study | Type 1 diabetes (MDI and pump) | A1C improvement depended more on CGM than insulin delivery method12 |
| FLASH-UK trial | Adults with type 1 diabetes | CGM with alarms led to greater A1C reduction22 |
Why CGM for patients with type 1 diabetes?
ADA guidelines recommend CGM for all adult patients with type 1 diabetes2:
- On MDI and insulin pumps
- As early as diagnosis
LESS THAN50%
of patients with TYPE 1 DIABETES have adopted CGM23
CGM reveals dangerous glucose variability.14
Blood glucose monitoring (BGM) doesn’t reveal the full story. CGM provides the complete 24-hour picture to help your patients address spikes or troughs BGM can miss.
Illustrative model of a 24‑hour blood glucose profile; not derived from an actual patient dataset.
Coverage and Affordability
Extensive coverage through a broad range of commercial and Medicare plans**
Ready to Prescribe?
A1C=hemoglobin A1C; ADA=American Diabetes Association; BGM=blood glucose monitoring; BIT=basal insulin therapy; CGM=continuous glucose monitoring; CPT=Current Procedural Terminology; DME=durable medical equipment; PIT=prandial insulin therapy; SEM=standard error of mean.
*In a retrospective study, diabetes-related hospitalizations reduced 12 months after CGM use: Non-insulin (-31%) Basal insulin (-48%) Prandial insulin (-53%).1 †After 6 months, for patients with type 2 diabetes who initiated Dexcom CGM in primary care. §This retrospective cohort analysis used Optum's deidentified Market Clarity data of >79 million people to evaluate CGM use in people with type 2 diabetes who were treated with non-insulin (NIT), basal insulin (BIT) and prandial insulin therapy (PIT). ||Retrospective cohort analysis using Optum deidentified Market Clarity data of >79 million people to evaluate CGM use in people with type 2 diabetes. #Individual prices may vary depending on insurance coverage. Under Medicare’s DME fee schedule, reimbursement and coinsurance for CGMs using CPT codes A4239 and E2103 are the same, regardless of CGM brand.
1 Garg SK, et al. Diabetes Obes Metab. 2024;26(11):5202-5210. 2 Lind N, et al. Diabetes Care. 2024;47(5):881-889. 3 Grace TP, et al. Clin Diabetes. 2024;42(4):540-546. 4 Diabetes Technology: Standards of Care in Diabetes-2025. Diabetes Care. 2025;48(1 Suppl 1):S146-S166. 5 Mayberry LS, et al. J Gen Intern Med. 2023;38(11):2546-2552. 6 Dexcom G7 15 Day User Guide.
