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Cinacalcet and achievement of the NKF/K-DOQI recommended target values for bone and mineral metabolism in real-world clinical practice--the ECHO observational study.

Author(s): Urena P, Jacobson SH, Zitt E, Vervloet M, Malberti F, Ashman N, Leavey S, Rix M, Os I, Saha H, Ryba M, Bencova V, Banos A, Zani V, Fouque D

Affiliation(s): Clinique du Landy, Saint Ouen, France. urena.pablo@wanadoo.fr

Publication date & source: 2009-09, Nephrol Dial Transplant., 24(9):2852-9. Epub 2009 Apr 15.

Publication type: Research Support, Non-U.S. Gov't

BACKGROUND: The use and effectiveness of cinacalcet in 'real-world' clinical practice was investigated in a pan-European observational study in dialysis patients with secondary hyperparathyroidism (SHPT) of varying severity. METHODS: Adult patients with chronic kidney disease on dialysis who had initiated cinacalcet treatment were enrolled. Data were collected 6 months before initiating cinacalcet, at baseline (initiation of cinacalcet) and up to 12 months after cinacalcet initiation. RESULTS: A total of 1865 patients [mean (SD) age 58 (15) years] were enrolled from 187 sites in 12 countries. Most patients had a dialysis vintage of > or =1 year (1-5 years, n = 833; >5 years, n = 748 versus <1 year, n = 265). The patients generally had severely uncontrolled intact parathyroid hormone (iPTH) serum levels (median 721 pg/ml) and elevated phosphorus (median 5.9 mg/dl) and calcium (median 9.6 mg/dl) at baseline, despite being prescribed conventional therapies. The proportions of patients achieving the recommended [NKF-K/DOQI(TM) (KDOQI(TM))] targets increased from baseline [4%, 39%, 40% and 46% for iPTH, phosphorus, calcium and calcium-phosphorus product (Ca x P), respectively] to Month 12 (28%, 48%, 51% and 68%, respectively). At Month 12, 18% of patients had achieved the combined target for iPTH + Ca x P compared with 2% at baseline. Most patients (65%) received <60 mg/day cinacalcet at Month 12. Vitamin D sterol use remained fairly stable throughout the study. There was a 13% decrease in prescribed sevelamer; use of calcium-based phosphate binders increased by 5.6%. There was no unexpected safety or tolerability concerns. CONCLUSION: This analysis of current European clinical practice shows that-consistent with findings from randomized controlled trials and retrospective observational studies-cinacalcet improves attainment of KDOQI bone metabolism targets in dialysis patients with various stages of SHPT.

Page last updated: 2009-10-20

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