Aspirin plus extended-release dipyridamole or clopidogrel compared with aspirin monotherapy for the prevention of recurrent ischemic stroke: a cost-effectiveness analysis.

Abstract:

OBJECTIVE:The goal of this health economic analysis was to asses the cost-effectiveness of a fixed combination of aspirin plus extended-release dipyridamole (ASA/ER-DP) or clopidogrel compared with ASA monotherapy for prevention of recurrent ischemic stroke. BACKGROUND:The second European Stroke Prevention Study (ASA/ESPS-2), a large-scale clinical trial, demonstrated that a new therapy--a fixed combination of ASA/ER-DP--is more effective than ASA monotherapy for the prevention of recurrent ischemic stroke. METHODS:We used data from ESPS-2 to create a health economic model that estimates the incremental cost and cost-effectiveness of ASA/ER-DP during the 2-year time frame after an ischemic stroke. The model was developed from a payor perspective. The analysis used direct cost estimates for stroke from a Medicare claims database analysis. Efficacy data were obtained from clinical trials to determine the incremental cost per stroke averted for ASA/ER-DP or clopidogrel versus ASA. Sensitivity analyses also were conducted to test the reliability and robustness of the model. RESULTS:The results of the analysis demonstrated that ASA/ER-DP was cost-effective compared with ASA monotherapy for the secondary prevention of stroke, with a cost-effectiveness ratio of $28,472. The model remained robust over a range of assumptions and cost estimates. Clopidogrel, however, was not cost-effective compared with ASA (cost per stroke averted, $161,316) in either the base-case analysis or any of the sensitivity analyses. CONCLUSION:ASA/ER-DP thus offers a cost-effective alternative to ASA monotherapy for the prevention of recurrent ischemic stroke.

journal_name

Clin Ther

journal_title

Clinical therapeutics

authors

Shah H,Gondek K

doi

10.1016/S0149-2918(00)80041-7

subject

Has Abstract

pub_date

2000-03-01 00:00:00

pages

362-70; discussion 360-1

issue

3

eissn

0149-2918

issn

1879-114X

pii

S0149-2918(00)80041-7

journal_volume

22

pub_type

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