Glycemic improvement with a novel interim intervention technique using retrospective professional continuous glucose...

To assess the efficacy of a novel interim intervention technique using retrospective, blinded, professional continuous glucose monitoring system (pro CGM) with the Freestyle Libre Pro system over a 14-day single sensor wear-period.

A retrospective analysis comprised of 105 consecutive adults at single centre in India with Type 2 diabetes, HbA1c > 53 mmol/mol (>7%), on non-insulin divabetes agents and/or insulin. The interim intervention technique included three visits over 14 days: Visit 1, sensor placed and patients asked to keep a food log while on pro-CGM; Visit 2 (within 1 week), interim assessment of pro CGM and diet or pharmacotherapy modifications made accordingly; Visit 3 at day 14, pro CGM re-evaluated to assess glycemic control. Glucose target range was set at 70-180 mg/dL. Analyses included pre & post daily average glucose, time in range, time above range, and time below range.

Average time for interim analysis was 5 days after pro CGM initiation. At Visit 3, daily average glucose decreased from 191.3 mg/dL at baseline to 137.4 mg/dL (p < 0.001). Time in range improved from 42.2% to 80.2% (p < 0.001). Time above range decreased from 52.1% to 18.3% (p < 0.001), with a concurrent decrease in time below range from 5.7% to 1.5% (p < 0.001). Recurrent hypoglycemia was detected in 27 (25.7%) individuals, whose average baseline time below range reduced from 21.1% to 1.9% (p < 0.001).

The interim intervention technique is a cost effective and efficient method for improving glucose outcomes through lifestyle and pharmacotherapy modifications and while utilizing a single pro-CGM sensor.

Wockhardt Hospital, Mumbai, India. CLINICAL REGISTRATION: not applicable due to retrospective chart review study design.