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The ECHO Observational Study

The ECHO Observational Study. Source Ureña P, Jacobson SH, Zitt E, et al . 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. Nephrol Dial Transplant. 2009;24(9):2852–2859.

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The ECHO Observational Study

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  1. The ECHO Observational Study Source Ureña P, Jacobson SH, Zitt E, et al. 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. Nephrol Dial Transplant. 2009;24(9):2852–2859.

  2. Background Secondary hyperparathyroidism (SHPT), which can develop in patients with chronic kidney disease (CKD) deleteriously, affects the function of multiple organs. To improve the care of dialysis patients, the National Kidney Foundation’s Kidney Disease Outcomes Quality Initiative [NKF-K/DOQITM (KDOQITM)] recommends achievement of targets that strongly predicts survival; however, only a small proportion of dialysis patients with SHPT receiving conventional therapies (calcium salts, vitamin D sterols, and phosphate binders) achieve and sustain control of KDOQITM targets for serum intact parathyroid hormone (iPTH), phosphorus, and calcium. Cinacalcet (Mimpara) is a calcimimetic approved for the treatment of SHPT in dialysis patients. There is currently little information available on cinacalcet and its impact on markers of mineral bone disease in real-life clinical practice.

  3. Aim To investigate the use and effectiveness of cinacalcet in dialysis patients with various stages of SHPT.

  4. Methods

  5. Key results • At baseline, the patients generally had severely uncontrolled iPTH serum levels (median 721 pg/ml) and elevated phosphorus (median 5.9 mg/dl), and calcium (median 9.6 mg/dl), despite being prescribed conventional therapies. • The proportions of patients achieving the recommended [NKF-K/DOQITM (KDOQITM)] targets increased from baseline [4%, 39%, 40%, and 46% for iPTH, phosphorus, calcium, and calcium–phosphorus product (Ca×P), respectively] to Month 12 (28%, 48%, 51%, and 68%, respectively) (Fig. 2). • At Month 12, 18% of patients had achieved the combined target for iPTH+Ca×P compared to 2% at baseline. • There was a 13% decrease in prescribed sevelamer. • There was no unexpected safety or tolerability concerns.

  6. Conclusion This study indicates that in CKD dialysis patients with SHPT, cinacalcet treatment improves attainment of the KDOQITM recommended serum iPTH, phosphorus, calcium, and Ca×P targets in the real-world setting. Increasing cinacalcet doses at pre-defined time points in patients not achieving KDOQITM targets may further improve the control of biochemical parameters in patients with SHPT.! Cinacalcet improves attainment of KDOQITM bone metabolism targets in dialysis patients with various stages of secondary hyperparathyroidism.

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