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Am J Kidney Dis. 2012 Aug;60(2):262-71. doi: 10.1053/j.ajkd.2011.12.034. Epub 2012 Mar 24.

Cost-effectiveness of cinacalcet hydrochloride for hemodialysis patients with severe secondary hyperparathyroidism in Japan.

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  • 1Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Isehara, Japan.

Abstract

BACKGROUND:

Cinacalcet effectively reduces elevated levels of parathyroid hormone (PTH) in patients with secondary hyperparathyroidism (SHPT), even those with severe disease for whom parathyroidectomy can be the treatment of choice. The objective of this study was to estimate the cost-effectiveness of cinacalcet treatment in hemodialysis patients with severe SHPT in Japan.

STUDY DESIGN:

Cost-effectiveness analysis.

SETTING & POPULATION:

Patients with severe SHPT (intact PTH >500 pg/mL) who were receiving hemodialysis in Japan.

MODEL, PERSPECTIVE, & TIMEFRAME:

A Markov model was constructed from the health care system perspective in Japan. Patients were followed up over their lifetime. Dialysis costs were not included in the base case.

INTERVENTION:

Cinacalcet as an addition to conventional treatment compared to conventional treatment alone. In both arms, patients underwent parathyroidectomy if intact PTH level was >500 pg/mL for 6 months and they were eligible for surgery.

OUTCOMES:

Costs, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios (ICERs).

RESULTS:

ICERs for cinacalcet for those who were eligible for surgery and those who were not were $352,631/QALY gained and $21,613/QALY gained, respectively. Sensitivity and scenario analyses showed that results were fairly robust to variations in model parameters and assumptions. In the probabilistic sensitivity analysis, cinacalcet was cost-effective in only 0.9% of simulations for those eligible for surgery, but in more than 99.9% of simulations for those ineligible for surgery, if society would be willing to pay $50,000 per additional QALY.

LIMITATIONS:

Data for the long-term effect of cinacalcet on patient-level outcomes are limited. The model predicted rates for clinical events using data for the surrogate biochemical end points.

CONCLUSIONS:

The use of cinacalcet to treat severe SHPT is likely to be cost-effective for only those who cannot undergo parathyroid surgery for medical or personal reasons.

Copyright © 2012 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.

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PMID:
22445709
[PubMed - indexed for MEDLINE]
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