5 years ago

Effects of age, gender, and body mass index on efficacy and hypoglycaemia outcomes across treat-to-target trials with insulin glargine 100 U/mL added to oral antidiabetes agents in type 2 diabetes

Thomas Haak, Wolfgang Landgraf, Louise Traylor, Francesca Porcellati, Bernard Charbonnel, Alexandra Kautzky-Willer, David R. Owens, Geremia B. Bolli
Aims To analyse the effects of patient characteristics and different oral antidiabetes drug (OAD) use on standardised clinical outcomes in type 2 diabetes patients initiating insulin glargine 100 U/mL (Gla-100). Materials and methods Patient-level data from 16 randomized, treat-to-target clinical trials that added Gla-100 to existing metformin (MET), sulfonylurea (SU) or metformin plus sulfonylurea (MET+SU) treatment in insulin-naïve patients inadequately controlled by oral therapy were analysed and patients were followed for ≥24 weeks. Change in glycated haemoglobin A1c (HbA1c) from baseline to week 24, other glycaemic endpoints and incidence of hypoglycaemia (overall, nocturnal, and severe) were analysed by age (<65 vs ≥65 years), gender (male vs female), body mass index (BMI; <25 vs ≥25 to <30 vs >30 kg/m2) and concomitant OAD (MET vs SU vs MET+SU). Results At baseline, the overall population (N = 3188) had a mean age of 57.7 years, BMI of 30.5 kg/m2, HbA1c of 8.7%, fasting plasma glucose of 192 mg/dL, and 52.7% were male. Younger and older patients had similar HbA1c reductions with Gla-100 and a similar risk of hypoglycaemia. Females and patients with BMI <25 kg/m2 were less likely to achieve HbA1c targets and more likely to experience hypoglycaemia, regardless of concomitant OAD. Adding Gla-100 to SU therapy (alone or in combination with MET) increased hypoglycaemia risk across all analyses. Conclusions Our data suggest that female patients with type 2 diabetes and normal-weight patients treated with Gla-100 and MET ± SU are less likely to achieve glycaemic targets and, therefore, may require more clinical attention. Addition of Gla-100 to SU regimens may increase hypoglycaemia risk irrespective of age, gender, or BMI.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/dom.12966

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