LONG-TERM REDUCTION OF CARDIOVASCULAR EVENTS AND COST-EFFECTIVENESS OF DIFFERENT STATINS AND DOSES IN MEXICO

Author(s)

Dolores Mino, PH, D, Chief1, Herman Soto, MHE, Pharmacoeconomics Manager2, Enrique Gomez, MD, Cardiologist3, Juan Jose Parcero, MD, Cardiologist4, Laura Cortés, MD, Medical Researcher, Internist5, Omar Zanela, BA, Economics, Assistant6, Ana Cecilia Polanco, MC, Local Investigation Manager21Instituto Mexicano de Seguro Social, México D.F, Mexico; 2 AstraZeneca Mexico, Naucalpan, Mexico; 3 ISSSTE, Mexico City, Mexico; 4 Clinical Cardiologist, Tijuana, BC, Mexico; 5 Hospital de Especialidades, CMNO, IMSS, Guadalajara, Jalisco, Mexico; 6 Centro de Investigación y Docencia Economicas CIDE A.C, México, Distrito Federal, Mexico

Objective: To assess long-term reduction of cardiovascular (CV) events and cost-effectiveness of the use of rosuvastatin (RSV), atorvastatin (ATV), simvastatin (SIM) and pravastatin (PRA) in Mexican patients over 55 years old. Methods: Efficacy data from STELLAR clinical trial (total cholesterol -TC-, LDL-C; HDL-C, triglycerides -TG-) was used as input to the model. Based on Framingham risk equations, 4 gender/risk cohorts were traced for 20 years (4-year Markov cycles) with 55-76 year old patients in order to predict primary and secondary CV events. Quarterly titration in year one was set up to a maximum dose of 20 mg RSV, 80 mg ATV, 80 mg SIM and 40 mg PRA based on TC target, whereas risk was calculated using average TC:HDL-C ratio of the 1000 simulated patients, with adjustment for Framingham's hypothesized over-prediction of Mexican risk. The economic analysis was done under private sector perspective with a 5% and 1.5% discount rate for costs and benefits, respectively. Unitary costs were obtained from NADRO (local wholesaler). Mexican Institute of Social Security costs and data from a Delphi Panel were used to estimate CV diseases' private costs. Disability-adjusted life years gained (DALYs) for each treatment regimen were estimated. Results are shown in natural units, while costs are expressed in US dollars. Sensitivity analysis included threshold, one-way scenarios and probabilistic analysis. Results: RSV 10mg for the 20-year horizon resulted in less primary and secondary events (197) and deaths (42), per 1000 patients, more DALYs (14.97) and lower per-patient treatment costs ($8134.57) than other statins on equivalent doses. Hence, RSV 10mg is highly cost-effective with a cost per DALYs gained of $16,802.15 than comparators. Sensitivity analysis showed the robustness of results. Conclusion: RSV is a cost-effective strategy: it yields fewer CV events, resulting in fewer deaths and significant economic saving for both patients and institutions.

Conference/Value in Health Info

2008-05, ISPOR 2008, Toronto, Ontario, Canada

Value in Health, Vol. 11, No. 3 (May/June 2008)

Code

PCV33

Topic

Economic Evaluation

Topic Subcategory

Cost-comparison, Effectiveness, Utility, Benefit Analysis

Disease

Cardiovascular Disorders

Explore Related HEOR by Topic


Your browser is out-of-date

ISPOR recommends that you update your browser for more security, speed and the best experience on ispor.org. Update my browser now

×