Alemtuzumab (AZ) induction in hepatitis C-seropositive (HCV+) kidney transplant (KTX) recipients may negatively affect patient survival; however, available information is scant. Using US registry data from 2003 to 2010 of adult HCV+ deceased-donor KTXs (n = 4910), we examined outcomes by induction agent - AZ (n = 294), other T cell-depleting agents, (n = 2033; T cell), IL-2 receptor blockade (n = 1135; IL-2RAb), and no induction (n = 1448). On multivariate analysis, induction therapy was associated with significantly better overall patient survival with AZ [adjusted hazards ratio (aHR) 0.64, 95% confidence interval (CI) 0.45, 0.92], T cell (aHR 0.52, 95% CI 0.41, 0.65) or IL-2RAb (aHR 0.67, 95% CI 0.53, 0.87), compared to no induction. A significant protective effect was also seen with AZ (aHR 0.63, 95% CI 0.40, 0.99), T cell (aHR 0.62, 95% CI 0.49, 0.78), and IL2R-Ab (aHR 0.62, 95% CI 0.47, 0.82) in terms of death-censored graft survival relative to no induction. There were 88 HIV+/HCV+ coinfected recipients. Compared to noninduction, any induction (i.e. three induction groups combined) was associated with similar overall patient survival (P = 0.2255) on univariate analysis. Induction therapy with AZ, other T cell-depleting agents, or IL-2RAb in HCV+ KTX is associated with better patient and death-censored graft survival compared to noninduction. In HCV/HIV coinfected patients, induction is not contraindicated.
Keywords: alemtuzumab; kidney transplantation; patient survival.
© 2013 Steunstichting ESOT. Published by John Wiley & Sons Ltd.