Cyclosporine A: clinical experience and therapeutic drug monitoring.

This article updates current studies on the concentration-effect relationship for cyclosporine A using specific analytical methodology in whole blood. Most of the existing documentation concerns renal transplantation. Trough level monitoring is recommended as the standard monitoring technique. However, there is a need to compare trough level monitoring with monitoring of the area-under-the-concentration-versus-time curve in prospective controlled trials. Further, there is a continuous need to update the concentration-effect relationship when introducing new immunosuppressive drug regimens.