Cost–utility analysis of using high-intensity statin among post-hospitalized acute coronary syndrome patients

Abstract

Background: Post-hospitalized acute coronary syndrome (ACS) patients in Indonesia National Insurance does not pay for the use of high-intensity statin (HIS) for secondary prevention after ACS hospitalization. Moreover, a cost–utility analysis needs to be conducted to evaluate the cost-effectiveness of prescribing HIS and low-to-moderate-intensity statin (LMIS) per quality-adjusted life year (QALY). This study aimed to estimate the cost–utility of long-term HIS treatment in post-hospitalized ACS patients in Indonesia compared to current practice. Results: This study compared the economic outcomes of long-term HIS and LMIS in Indonesian post-hospitalized ACS patients. A lifetime Markov model predicted ACS-related events, costs, and QALY from a payer perspective. A systematic review estimated treatment-specific event probabilities, post-event survival, health-related quality of life, and Indonesia medical-care expenses from published sources. This study conducted probabilistic sensitivity analysis (PSA) using 1000 independent Monte Carlo simulations and a series of one-way deterministic sensitivity analyses utilizing a tornado diagram. The economic evaluation model proved that intensive HIS treatment can increase per-patient QALYs and care expenditures compared to LMIS. The use of HIS among post-hospitalized ACS patients had ICER 31.843.492 IDR per QALY gained, below the Indonesia willingness-to-pay (WTP) for terminal disease and life-saving treatment. Conclusion: From the Indonesia payer perspective, using HIS for post-hospitalized ACS patients in Indonesia is cost-effective at 31.843.492 IDR per QALY gained.