• Mark L Warren, Meryl Brod, Jonas Håkan-Bloch, Thomas Sparre, and Louis B Chaykin.
• Physicians East, Greenville, NC, USA.
• Curr Med Res Opin. 2019 Sep 1; 35 (9): 1623-1629.

AbstractObjective: Type 2 diabetes (T2D) is associated with insulin resistance and deteriorated glycemic control that can be restored with insulin injections. Choice of insulin pen injector may affect complexity, adherence, efficacy of treatment and health-related quality of life. We describe detailed patient-reported outcomes (PROs) on treatment impact and preference comparing insulin degludec (degludec) using FlexTouch1 versus insulin glargine U100 (glargine U100) with SoloStar2 pen injector.Methods: In this randomized, multicenter (USA), open-label, crossover, treat-to-target study (NCT01570751), patients with T2D using high-dose insulin (≥81 U/day from vials) were randomized (n = 145) 1:1 to 16 weeks of degludec U200 (3 mL FlexTouch) followed by 16 weeks of glargine U100 (3 mL SoloStar) or vice versa. PRO questionnaires assessed treatment impact and patient preference of pen injectors.Results: Significantly more patients (p < .01) considered FlexTouch "extremely easy" for learning (62.5 vs. 43.0%), maintaining (63.2 vs. 42.2%) and adjusting the dose (63.2 vs. 44.4%), and significantly more were "very" or "extremely confident" in using the device (60.3 vs. 36.3%) and in its accuracy (50.7 vs. 30.4%) versus SoloStar. Significantly more were "not at all bothered" by device discomfort (74.3 vs. 54.1%), whereas device size (83.8 vs. 80.0%) or public use (69.9 vs. 60.7%) were numerically in favor of FlexTouch. Significantly more patients preferred degludec treatment with FlexTouch (59 vs. 22%), preferred to continue (67 vs. 15%) and recommend (67 vs. 14%) use of FlexTouch compared with SoloStar with glargine U100.Conclusions: In this randomized, crossover trial, lower treatment impact and higher patient preference were reported for FlexTouch versus SoloStar pen injectors.

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