A study to determine the optimal dose and blood level of Prograf® in long-term maintenance of kidney transplant patients.

A 3 arm study (2 Active, 1 Active Control) to determine the optimal dose and blood level of Prograf® in long-term maintenance of kidney transplant patients

Inclusion Criteria:

• Patient was 18 years of age at the time of transplant.
• Patient is at least 6 months post-transplant.

Exclusion Criteria:

• Patient is the recipient of a solid organ transplant other than the kidney.
• Patient is a known carrier of any of the HIV viruses.