Biphasic insulin aspart 30 treatment for people with type 2 diabetes: a budget impact analysis based in Thailand

Objective: To assess the financial consequences of different adoption rate of Biphasic Insulin Aspart (BIAsp) 30 instead of Biphasic Human Insulin (BHI) 30 for people with type 2 diabetes (T2DM) in Thailand from the payer’s perspective.

Methods: The Excel-based International T2DM Budget Impact Model over a 3-year period was used. The cohort was the T2DM patients who received treatment from government hospitals under the Universal Health Coverage Scheme. Demographic, the adverse events, and the costs were derived from published studies in Thailand. Efficacy was based on meta-analysis. Adoption rates were assumed to increase each year. Net budget impact (NBI) and one-way sensitivity were analyzed.

Results: Hypoglycemia costs were lower in BIAsp 30 compared with BHI 30. The NBI per year was 26,511,269 THB (771,349 USD) for year 1, 52,181,133 THB (1,518,218 USD) for year 2, and 76,189,608 THB (2,216,747 USD) for year 3. The NBI per insulin user per year was 33.45 THB (0.97 USD), 67.27 THB (1.96 USD), 101.49 THB (2.95 USD) from year 1 to year 3, respectively

Conclusions: Lower rate of hypoglycemia with BIAsp 30 than those treated with BHI 30 generates cost savings resulting in significant deduction in the additional acquisition cost of BIAsp 30. Therefore, the NBI per insulin user per year has become small.