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Clinical Trial
. 2019 Aug;58(4):515-524.
doi: 10.1016/j.transci.2019.06.031. Epub 2019 Jul 22.

Extracorporeal Photopheresis for the Treatment of Graft Rejection in 33 Adult Kidney Transplant Recipients

Affiliations
Clinical Trial

Extracorporeal Photopheresis for the Treatment of Graft Rejection in 33 Adult Kidney Transplant Recipients

Mathilde Tamain et al. Transfus Apher Sci. .

Abstract

Background - Extracorporeal photopheresis (ECP) has shown encouraging results in the prevention of allograft rejection in heart transplantation. However, the role of ECP in kidney transplant (KT) rejection needs to be determined. Methods - This multicentre retrospective study included 33 KT recipients who were treated with ECP for allograft rejection (23 acute antibody-mediated rejections (AMRs), 2 chronic AMRs and 8 acute cellular rejections (ACRs)). The ECP indications were KT rejection in patients who were resistant to standard therapies (n = 18) or in patients for whom standard therapies were contraindicated because of concomitant infections or cancers (n = 15). Results - At 12 months (M12) post-ECP, 11 patients (33%) had a stabilization of kidney function with a graft survival rate of 61%. The Banff AMR score (g + ptc + v) was a risk factor for graft loss at M12 (HR 1.44 [1.01-2.05], p < 0.05). The factorial mixed data analysis identified 2 clusters. Patients with a functional graft at M12 tended to have cellular and/or chronic rejections. Patients with graft loss at M12 tended to have acute rejections and/or AMR; higher serum creatinine levels; DSA levels and histologic scores of AMR; and a longer delay between the rejection and ECP start than those of patients with functional grafts. Conclusions - ECP may be helpful to control ACR or moderate AMR in KT recipients presenting concomitant opportunistic infections or malignancies when it is initiated early.

Keywords: Allograft rejection; Extracorporeal photopheresis; Kidney transplantation.

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