Outcomes of Primary Simultaneous Pancreas-kidney Transplants by Induction Agent in the United States. Issue 12 (17th November 2022)

• Record Type: Journal Article
• Authors: Cerise, Adam; Shaker, Tamer; LeNguyen, Phuoc; Dinesh, Anant; Ramanathan, Karthik; Humphreville, Vanessa; Jackson, Scott; Kandaswamy, Raja; Riad, Samy
• Is Part Of: Transplantation direct. Volume 8:Issue 12(2022)
• Page Start: e1412
• Publication Date: 2022-11-17
• Subjects: Transplantation of organs, tissues, etc -- Periodicals; Transplantation -- Periodicals; 362.19795
• DOI: 10.1097/TXD.0000000000001412
• Languages: English
• ISSNs: 2373-8731

Abstract

Abstract : Background: Long-term outcome data by induction type in simultaneous pancreas-kidney (SPK) is limited. Methods: Utilizing the Scientific Registry of Transplant Recipients, we examined all primary SPK transplants between 2000 and 2020, excluding crossmatch-positive recipients. We grouped recipients according to induction regimen into 3 groups: rabbit anti-thymocyte globulin (r-ATG) (n = 5678), alemtuzumab (n = 1199), and interleukin-2 receptor antagonist (IL-2RA; n = 1593). We analyzed the 10-y recipient and composite (kidney and pancreas) graft survival using the Kaplan-Meier survival function. Cox-proportion hazard models were generated to examine the association between induction type, the 10-y recipient, and graft survival. Models were adjusted for recipient age, sex, ethnicity, HLA-mismatch, diabetes type, dialysis dependency, cold-ischemia time, local versus imported organs, panel reactive antibody, steroid maintenance, and Pancreas Donor Risk Index. Results: r-ATG was associated with the lowest 1-y kidney and pancreas rejection rates compared with other agents ( P < 0.001). In the univariable analysis, induction type was not associated with recipient (log-rank P = 0.11) or graft survival (log-rank P = 0.36). In the multivariable model for the composite graft survival, alemtuzumab use was associated with 22% increased kidney or pancreas graft loss compared with r-ATG (adjusted hazard ratio, 1.22; 95% confidence interval, 1.05–1.42), whereas IL-2RA use was not a predictor of graft survival. Induction type did not influence recipient survival in the adjusted model. Conclusions: r-ATG use was associated with the lowest SPK rejection rates. Compared with r-ATG, alemtuzumab but not IL-2RA was associated with worse long-term death-censored SPK graft outcome. Our analysis supports the common use of r-ATG for induction in US primary SPK recipients. Abstract :