Summary
In an earlier study, we were able to show that Tac monotherapy following 2 × 20 mg alemtuzumab induction is at least as effective as Tac-based triple-drug immunosuppression in cadaveric renal transplantation. We were interested to learn whether 1 × 30 mg of alemtuzumab is as effective as 2 × 20 mg. Patients of the initial study group (group A) received 20 mg alemtuzumab on days 0 and 2, and tac monotherapy from day 2 on. This group acted as control group for the new arm (group C), where patients were given only 1 × 30 mg alemtuzumab on day 0 followed by Tac monotherapy from day 2 on with the same target levels as in the control group. Frequency of rejection at 6 months was 15% in the control group compared to 6% in the study group and 20% at 12 months in group A versus 6% in group C (P = 0.034). Time to rejection was 4.9 months in group A and 0.8 in group C. One-year patient survival was 98.5% in both groups, graft survival 96.9% in group A, and 98.5% in group C. Safety profile was similar in both groups apart from more viral and bacterial infections in group C. Single shot alemtuzumab induction of 30 mg is as effective as 2 × 20 mg in cadaveric renal transplantation.
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