Over the last 30 years, the field of organ transplantation has advance
d from an experimental curiosity to an established treatment option fo
r patients with irreversible organ failure. Recently developed immunos
uppressive drugs, which are becoming available with increasing frequen
cy, may finally solve the problem of acute allorejection during the re
mainder of the millennium. Graft loss, owing to chronic rejection, and
an ever widening gap between recipient and donor numbers (organ short
age) remain major problems at the gateway to the next century. Further
development of efficacious, but nontoxic immunosuppressive agents, an
d induction of immune tolerance and xenotransplantation will be the go
als of future developments in the field of organ transplantation.