Faculty Collaboration Database

The Effects of Cinacalcet in Older and Younger Patients on Hemodialysis: The Evaluation of Cinacalcet HCl Therapy to Lower Cardiovascular Events (EVOLVE) Trial. Clin J Am Soc Nephrol 2015 May 07;10(5):791-9

Date

02/25/2015

Pubmed ID

25710802

Pubmed Central ID

PMC4422239

DOI

10.2215/CJN.07730814

Scopus ID

2-s2.0-84929171843 (requires institutional sign-in at Scopus site)   79 Citations

Abstract

BACKGROUND AND OBJECTIVES: The calcimimetic cinacalcet reduced the risk of death or cardiovascular (CV) events in older, but not younger, patients with moderate to severe secondary hyperparathyroidism (HPT) who were receiving hemodialysis. To determine whether the lower risk in younger patients might be due to lower baseline CV risk and more frequent use of cointerventions that reduce parathyroid hormone (kidney transplantation, parathyroidectomy, and commercial cinacalcet use), this study examined the effects of cinacalcet in older (≥65 years, n=1005) and younger (<65 years, n=2878) patients.

DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Evaluation of Cinacalcet HCl Therapy to Lower Cardiovascular Events (EVOLVE) was a global, multicenter, randomized placebo-controlled trial in 3883 prevalent patients on hemodialysis, whose outcomes included death, major CV events, and development of severe unremitting HPT. The age subgroup analysis was prespecified.

RESULTS: Older patients had higher baseline prevalence of diabetes mellitus and CV comorbidity. Annualized rates of kidney transplantation and parathyroidectomy were >3-fold higher in younger relative to older patients and were more frequent in patients randomized to placebo. In older patients, the adjusted relative hazard (95% confidence interval) for the primary composite (CV) end point (cinacalcet versus placebo) was 0.70 (0.60 to 0.81); in younger patients, the relative hazard was 0.97 (0.86 to 1.09). Corresponding adjusted relative hazards for mortality were 0.68 (0.51 to 0.81) and 0.99 (0.86 to 1.13). Reduction in the risk of severe unremitting HPT was similar in both groups.

CONCLUSIONS: In the EVOLVE trial, cinacalcet decreased the risk of death and of major CV events in older, but not younger, patients with moderate to severe HPT who were receiving hemodialysis. Effect modification by age may be partly explained by differences in underlying CV risk and differential application of cointerventions that reduce parathyroid hormone.

Author List

Parfrey PS, Drüeke TB, Block GA, Correa-Rotter R, Floege J, Herzog CA, London GM, Mahaffey KW, Moe SM, Wheeler DC, Kubo Y, Dehmel B, Goodman WG, Chertow GM, Evaluation of Cinacalcet HCl Therapy to Lower Cardiovascular Events (EVOLVE) Trial Investigators

Author

Samuel S. Blumenthal MD Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Age Factors
Aged
Aged, 80 and over
Calcimimetic Agents
Cardiovascular Diseases
Female
Humans
Hyperparathyroidism, Secondary
Kidney Failure, Chronic
Kidney Transplantation
Male
Middle Aged
Parathyroidectomy
Renal Dialysis
Severity of Illness Index