Abstract
SummaryThe objective of this study was to evaluate the cost effectiveness of paricalcitol injection compared with calcitriol injection when used to reduce parathyroid hormone levels in patients undergoing haemodialysis. A decision tree was developed to model the 1-year costs and outcomes of therapy for secondary hyperparathyroidism from a US government payer's perspective (2005 US$). Probabilities of hospitalisations and survival with paricalcitol and calcitriol were obtained from published observational studies.When only drug costs and survival were considered, the incremental cost effectiveness of paricalcitol over calcitriol was $9,900 per life saved. When utilities were included, the incremental cost-effectiveness ratio for paricalcitol compared with calcitriol was $13,200 per quality-adjusted life year. When both drug and hospitalisation costs were included in a cost analysis, paricalcitol treatment was cost saving compared with calcitriol, and when hospitalisation costs were included in both the cost-effectiveness analysis and cost-utility analysis paricalcitol demonstrated first-order dominance, cost savings and cost effectiveness.This decision analysis demonstrated that paricalcitol injection is both cost effective and cost saving compared with calcitriol injection.
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