[Calcimimetics, phosphate binders, vitamin D and its analogues for treating secondary hyperparathyroidism in chronic kidney disease: guideline from the Italian Society of Nephrology].

Abstract

BACKGROUND:

The current 3rd edition of the Italian Society of Nephrology guidelines has been drawn up to summarize evidence of key intervention issues on the basis of systematic reviews (SR) of randomized trials (RCT) or RCT data only. In the present guideline, evidence of the use of calcimimetics, phosphate binders, vitamin D and vitamin D analogues for treating secondary hyperparathyroidism in chronic kidney disease (CKD) is presented.

METHODS:

SR of RCT and RCT on interventions for secondary hyperparathyroidism in CKD were identified referring to a Cochrane Library and Renal Health Library search (2005 update).

RESULTS:

Three SR and 8 RCT were found addressing this intervention issue. Methodological quality of available RCT was suboptimal according to current methodological standards. Calcimimetics used in patients receiving haemodialysis or peritoneal dialysis are more effective than placebo in controlling secondary hyperparathyroidism (reduced parathyroid hormone levels, calcium levels and phosphorus levels). All phosphate binders are effective in controlling hyperphosphatemia but different doses are to be used with different agents to achieve similar targets. Dosing needs to be adjusted according to phosphorus levels. Vitamin D and its analogues are recommended in CKD patients, although there is no significant evidence of superiority of individual agents in head-to-head comparisons. Dosing should be based on baseline parathyroid hormone levels, but the risk of hypercalcemia should also be considered.

CONCLUSION:

Available evidence suggests that calcimimetics, phosphate binders and vitamin D or its analogues are effective in the treatment of secondary hyperparathyroidism. Superiority of individual agents or doses is still deeply debated. Further studies are necessary to test these issues.

• Authors: S Mazzaferro, M Cozzolino, M Marangella, G F M Strippoli, P Messa, Società Italiana di Nefrologia
• Journal: Giornale italiano di nefrologia : organo ufficiale della Societa italiana di nefrologia (G Ital Nefrol) 2007 Jan-Feb Vol. 24 Suppl 37 Pg. S107-24 ISSN: 1724-5990 [Electronic] Italy
• Vernacular Title: Utilizzo della vitamina D e analoghi, dei chelanti del fosforo e dei calciomimetici nella terapia dell'iperparatiroidsmo secondario e della patologia ossea nelle nefropatie croniche: Linea Guida.
• PMID: 17347960 (Publication Type: English Abstract, Journal Article, Practice Guideline)

Chemical References

• Calcimimetic Agents
• Chelating Agents
• Vitamins
• Vitamin D
• Phosphorus

Topics

• Calcimimetic Agents (therapeutic use)
• Chelating Agents (therapeutic use)
• Humans
• Hyperparathyroidism, Secondary (drug therapy, etiology)
• Phosphorus
• Renal Insufficiency, Chronic (complications)
• Vitamin D (therapeutic use)
• Vitamins (therapeutic use)