RESUMO
INTRODUCTION: The clinical benefits of treating patients with type 2 diabetes mellitus (T2DM) with fixed-ratio combination of insulin iGlar (iGlar) plus lixisenatide (iGlarLixi) were demonstrated in clinical trials and real-world evidence studies; however, its cost impact to healthcare payers is unknown. METHODS: A budget impact model was developed from a United States (US) payer's perspective for a hypothetical healthcare plan of 1 million people over a 1-year time horizon. In scenario analysis, patients with uncontrolled glycated hemoglobin (HbA1c) treated with 60 units or less of daily insulin (insulin cohort) or oral antidiabetic drugs (OADs) only (OAD cohort) were intensified to iGlarLixi/rapid-acting insulin (RAI)/glucagon-like peptide 1 receptor agonists (GLP-1RA) or iGlarLixi/iGlar/GLP-1RA, respectively. Model inputs from real-world data (RWD) included baseline market shares, proportion of patients intensifying to respective treatments, and dosing inputs; unit costs were obtained from published literature. One-way sensitivity analyses assessed the impact of individual parameters. RESULTS: Intensification with iGlarLixi resulted in the lowest incremental per member per month (PMPM) budget impact compared to other intensifying drugs (iGlar, RAI, and GLP-1RA). In the insulin cohort, the incremental PMPM cost for intensification with iGlarLixi ($0.03) was the lowest among intensifying drugs; GLP-1RA ($72.20) and RAI ($4.81). Similarly, the incremental PMPM cost for intensification with iGlarLixi was the lowest ($1.25) in the OAD cohort among intensifying drugs; GLP-1RA ($321.65) and iGlar ($114.82). In scenario analyses, when equal market intensification shares for iGlarLixi and GLP-1RA were explored, the incremental PMPM cost for iGlarLixi ($0.03) remained lower than GLP-1RA ($2.28) and RAI ($10.44) in the insulin cohort. CONCLUSIONS: Intensification with iGlarLixi was associated with lower costs compared to other treatment intensifications, as well as overall budget reductions compared to pre-intensification when considering cost savings attributable to reduction in HbA1c; therefore, its inclusion for the treatment of T2DM would represent a budget saving.
RESUMO
INTRODUCTION: The fixed-ratio combination of insulin glargine (iGlar) plus lixisenatide (iGlarLixi) has proven efficacious in clinical trials; however, there is limited evidence of its benefits in a variety of real-world patients with type 2 diabetes mellitus (T2DM) who present in routine clinical practice. METHODS: A large integrated claims and EHR database was used to identify two real-world (RW) cohorts (ages ≥ 18) with T2DM who were eligible for treatment with iGlarLixi. At baseline, the first cohort (insulin cohort) received insulin with or without oral antidiabetic drugs (OADs), and the second cohort (OAD-only cohort) received OADs only. A Monte Carlo patient-level simulation was applied to each cohort based on treatment strategies and efficacies from the LixiLan-L and LixiLan-O trials to estimate reductions in glycated hemoglobin A1C (A1C) and the percentage achieving age-based A1C goals (≤ 7% for ages < 65 and ≤ 8% for ages ≥ 65) at 30 weeks. RESULTS: The RW insulin (N = 3797) and OAD-only (N = 17,633) cohorts differed considerably in demographics, age, clinical characteristics, baseline A1C levels, and background OAD therapies compared to the populations in the Lixilan-L and Lixilan-O trials. Regardless of the cohort description, A1C goals were achieved among 52.6% vs. 31.6% (p < 0.001) of patients in the iGlarLixi vs. the iGlar arms in the insulin cohort simulation, while A1C goals were achieved among 59.9% vs. 49.3% and 32.8% (p < 0.001) of patients in the OAD-only cohort simulation in the iGlarLixi vs. the iGlar and lixisenatide arms, respectively. CONCLUSIONS: Irrespective of the treatment regimen at baseline (insulin vs. OAD only), this patient-level simulation demonstrated that a greater proportion of patients achieved their A1C goals with iGlarlixi compared to iGlar or lixisenatide alone. These findings suggest that the benefits of iGlarLixi extend to clinically distinct RW populations.
