Efficacy of iGlarLixi in adults with type 2 diabetes inadequately controlled (glycated haemoglobin >= 8%, >= 64 mmol/mol) on two oral antidiabetes drugs: Post hoc analysis of the LixiLan-O randomized trial

Aims: To assess the efficacy and safety of iGlarLixi (the titratable fixed-ratio combination of insulin glargine 100 U/mL [iGlar] plus lixisenatide [Lixi]), in adults with type 2 diabetes (T2D) with glycated haemoglobin (HbA1c) levels ≥8% (≥64 mmol/mol). Materials and methods: The LixiLan-O study (NCT02058147) compared iGlarLixi with iGlar or Lixi in adults with T2D inadequately controlled on metformin ± a second oral antidiabetes drug (OAD). This exploratory analysis evaluated the LixiLan-O subgroup of participants with baseline HbA1c levels of ≥8% (≥64 mmol/mol) who were receiving metformin plus a second OAD at screening. Results: The mean diabetes duration was 10.0 years, and the mean duration of second OAD use was 4.5 years. iGlarLixi demonstrated greater mean reductions from baseline in HbA1c and 2-hour postprandial glucose (PPG) compared with iGlar or Lixi (HbA1c −1.9% vs. −1.6% or −1.0% [−20 vs. −17 or −10 mmol/mol; 2-hour PPG −7.2 vs. −4.6 or −5.5 mmol/L). Greater proportions of participants achieved HbA1c <7% (<53 mmol/mol) with iGlarLixi versus iGlar or Lixi (67% vs. 51% or 18%), and the composite endpoints of HbA1c <7% (<53 mmol/mol) with no body weight gain (36% vs. 19% or 16%), and HbA1c <7% (<53 mmol/mol) with no body weight gain and no documented symptomatic hypoglycaemia (plasma glucose ≤3.9 mmol/L; 28% vs. 15% or 15%). The incidence rates of documented symptomatic hypoglycaemia were 29.0%, 27.9% and 12.1% for iGlarLixi, iGlar and Lixi, respectively. Conclusions: Adults with T2D and HbA1c ≥64 mmol/mol (≥8%) despite two OADs at screening achieved better glycaemic control with iGlarLixi versus iGlar or Lixi, without increased risk of hypoglycaemia versus iGlar.