PHARMACOECONOMICS OF ORAL PARICALCITOL THERAPY IN PATIENTS WITH A CHRONIC KIDNEY DISEASE AND SECONDARY HYPERPARATHYROIDISM

Abstract

Selective vitamin D receptors agonist paricalcitol can increase probability of proteinuria reduction at patients with the chronic kidney disease (CKD) and secondary hyperparathyroid-ism. THE AIM of this study was to determine the cost effectiveness of oral paricalcitol in patients with a CKD and secondary hyperparathyroidism and to carry out the budget impact analysis to understand the potential financial effect of introducing this drug in a health plan. MATERIALS AND METHODS. Assessment was carried out from a health care payer per-spective with use of the 5-year temporary horizon. Markov modeling on the basis of results of double blind trials at whom the efficacy of a paricalcitol at patients with hyperparathyroidism was estimated is carried out. The analysis is carried out taking into account tariffs of compulsory health insurances across St. Petersburg for 2018. Cost of paricalcitol corresponded to the price of registration including VAT for 2018 and 10% of a trade extra charge (5061.27 rub for 28 caps. on 1 mcg). During cost-effectiveness assessment clinical and economic outcomes were discounted at 3,5% a year. The budget impact analysis was carried out without discount-ing. RESULTS. Purpose of an oral paricalcitol to patients with CKD stage 3-4 and secondary hyperparathyroidism allows to increase time before transition to dialysis and life expectancy on average for 0,049-0,134 and for 0,033-0,144 year, respectively (when calculating without dis-counting). The cost effectiveness of an oral paricalcitol is higher at early stages of a nephropathy – 1,377 million rubles / year without dialysis gained, 1,408 million rubles / life year gained and 1,647 million rubles / QALY. At the same time paricalcitol therapy of patients with early stages of a nephropathy demands increase of cumulative expenses in 5 years by 2,24 times. CONCLUSIONS. Oral paricalcitol therapy in patients with a CKD and secondary hyperparathyroidism, according to results of modeling, allows to postpone transition of patients to dial-ysis and, taking into account the made assumptions, can be considered in patients with early stages of a nephropathy as economically acceptable intervention.