The Effect of Epoetin Alfa on Cardiac Function and Quality of Life in Patients With Early Renal ((Kidney) Disease

Anemia Clinical Trial

Official title: A Study in Early Renal Insufficiency Patients to Assess the Effect of Maintaining Three Different Hemoglobin Levels With the Use of Erythropoetin Alpha on Left Ventricular Hypertrophy and Dilation and Quality if Life; The "Cardiac Results of Early Treatment of Anaemia (CRETA)" Study

Status Completed

Clinical Trial Summary

The purpose of this study is to assess whether maintaining hemoglobin (Hb) levels at normal or sub-normal levels with Epoetin Alfa can influence the health status, left ventricular mass and quality of life of early renal insufficiency subjects without additional safety concerns.

Clinical Trial Description

The use of Epoetin alfa in the treatment of anaemia in chronic renal failure (CRF) patients is well accepted. The severity of anaemia in CRF patients increases with the degree of renal dysfunction. Thus, the most severe degree of anaemia is generally found in patients with end stage renal disease who must be maintained on dialysis. Nevertheless, a significant number of early renal insufficiency patients are also seen to be anaemic.

Most patients in Europe with end stage renal disease are maintained at an Hb level between 6 and 8 mmol/l. According to a survey during the second European Epoetin symposium (Creta, 1998) only 20% is maintained at Hb = 8 mmol/l, but most are maintained at values lower than 8 mmol/l. Even about 40% was maintained at Hb = 6 mmol/l.

A number of studies have found a relationship between left ventricular hypertrophy and haemoglobin in dialysis and pre-dialysis patients. Also a relation between LVH and morbidity and mortality has been found. For this reason it should be a suggestion to treat anaemia towards a higher level.

To treat Hb to a higher level a choice can be made to correct Hb when it has dropped to a very low level after renal disease has reached an advanced stage or alternatively to prevent anaemia in an early stage of renal disease. In an analysis of the normal hematocrit trial, Macdougall and Ritz suggest the latter. This is the main purpose of this trial.

Treatment with Epoetin alfa also makes patients feel better physically when their exercise capacity improves. During treatment with Epoetin alfa, several secondary effects may simultaneously influence the maximal exercise capacity after correction of the anaemia. The improved well-being may result in an increase in physical activity and exercise capacity can be further improved by such conditioning. The improved oxygen transport after correction of anaemia reverses the circulatory adaptation to hypoxia and most studies have shown a decrease in cardiac output at rest, and an increase in peripheral resistance. However, approximately one-third of chronic renal failure patients treated with Epoetin alfa have episodes of hypertension, and may require increased doses of anti-hypertensive medication.

This prospective study will assess whether maintaining Hb levels at normal or sub-normal levels can influence the health status, left ventricular mass and quality of life (QoL) of early renal insufficiency subjects without additional safety concerns. The patients will receive Epoetin Alfa as subcutaneous or intravenous injections in variable dosages for a maximum of 42 months ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Anemia
• Renal Insufficiency

• NCT number: NCT00446576
• Study type: Interventional
• Source: Janssen-Cilag B.V.
• Status: Completed
• Phase: Phase 3
• Start date: November 1999
• Completion date: April 2003