Cost Effectiveness of Tinzaparin Sodium Versus Unfractionated Heparin in the Treatment of Proximal Deep Vein Thrombosis
J. Jaime Caro
Judith A. O'Brien
Objective: To evaluate economic and health implications of tinzaparin sodium, a once a day low-molecular-weight heparin (LMWH), versus unfractionated heparin (UFH) in the treatment of acute deep vein thrombosis (DVT) from a US healthcare payer perspective. Study Design: An economic model, composed of two submodules, was created: A short-term module based on clinical trial data covering the first 3 months and a long-term module that projects trial results based on published data for up to 50 years. Methods: Clinical trial results were combined with data from long-term follow-up studies of DVT in a model that estimates the health and economic consequences of treatment. Both short- and long-term costs with tinzaparin sodium were compared with UFH, as were health outcomes and quality-adjusted life-years (QALYs). Results: Patients treated with tinzaparin sodium are estimated to live a mean of 0.9 years longer on average (0.6 discounted), resulting in an increase of 0.8 QALYs (0.5 discounted). At the same time, lifetime savings are $US621 per patient (1999 values), even when all patients receiving tinzapirin sodium are treated as inpatients. Early discharge of patients receiving tinzaparin sodium, or outpatient treatment, would save between $US3000 and $US5000 per patient. Conclusion: Tinzaparin sodium leads to better health outcomes and substantial economic savings compared with UFH treatment when all management costs are considered.
Cost analysis, Deep vein thrombosis, Heparin, Tinzaparin sodium
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