Nephrology Dialysis Transplantation, Vol 14, Issue 2 384-388, Copyright © 1999 by Oxford University Press
G Raman, J Feehally, R Coates, H Elliott, P Griffin, J Olubodun and R Wilkinson
Renal effects of amlodipine in normotensive renal transplant recipients.
The use of cyclosporin A (CsA) has improved the success of renal
transplantation, but is associated with hypertension and significant renal
toxicity. Previous reports suggest that calcium channel blockers may be
useful in opposing the adverse effects of CsA. We have evaluated the
effects of amlodipine (5 mg, once daily for 8 weeks) on renal function in
27 normotensive renal transplant recipients with stable renal function, in
a double-blind, placebo-controlled, multicentre, cross over study.
Amlodipine significantly reduced serum creatinine concentration relative to
placebo (mean±SD: 168±65 vs
177±66 &mgr;mol/l; P=0.002) and there was a strong trend
towards an increase in effective renal plasma flow on amlodipine relative
to placebo (238±92 vs 217±87
ml/min; P=0.055). Glomerular filtration rate and lithium clearance were
unaffected. Trough CsA blood concentration was unaffected. Amlodipine was
well tolerated, with a low incidence of adverse events, and did not affect
blood pressure or heart rate. In conclusion, amlodipine reduced serum
creatinine in normotensive renal transplant recipients after only 8 weeks
treatment, and was well tolerated in concomitant administration with CsA.
Key words: amlodipine; cyclosporin A; normotensive;
serum creatinine
ORIGINAL ARTICLES
Renal effects of amlodipine in normotensive renal transplant recipients
St Mary's Hospital, Milton Road, Portsmouth PO3 6AD, UK; Leicester General Hospital, Leicester, UK; Western Infirmary, Glasgow, UK; Cardiff Royal Infirmary, Cardiff, UK; Freeman Hospital, Newcastle upon Tyne, UK; Corresponding author
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