Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Multicenter Study
. 2021 Jul;100(1):196-205.
doi: 10.1016/j.kint.2020.12.015. Epub 2020 Dec 24.

A multi-center study on safety and efficacy of immune checkpoint inhibitors in cancer patients with kidney transplant

Affiliations
Multicenter Study

A multi-center study on safety and efficacy of immune checkpoint inhibitors in cancer patients with kidney transplant

Naoka Murakami et al. Kidney Int. 2021 Jul.

Abstract

Immune checkpoint inhibitors (ICIs) are widely used for various malignancies. However, their safety and efficacy in patients with a kidney transplant have not been defined. To delineate this, we conducted a multicenter retrospective study of 69 patients with a kidney transplant receiving ICIs between January 2010 and May 2020. For safety, we assessed the incidence, timing, and risk factors of acute graft rejection. For efficacy, objective response rate and overall survival were assessed in cutaneous squamous cell carcinoma and melanoma, the most common cancers in our cohort, and compared with stage-matched 23 patients with squamous cell carcinoma and 14 with melanoma with a kidney transplant not receiving ICIs. Following ICI treatment, 29 out of 69 (42%) patients developed acute rejection, 19 of whom lost their allograft, compared with an acute rejection rate of 5.4% in the non-ICI cohort. Median time from ICI initiation to rejection was 24 days. Factors associated with a lower risk of rejection were mTOR inhibitor use (odds ratio 0.26; 95% confidence interval, 0.09-0.72) and triple-agent immunosuppression (0.67, 0.48-0.92). The objective response ratio was 36.4% and 40% in the squamous cell carcinoma and melanoma subgroups, respectively. In the squamous cell carcinoma subgroup, overall survival was significantly longer in patients treated with ICIs (median overall survival 19.8 months vs. 10.6 months), whereas in the melanoma subgroup, overall survival did not differ between groups. Thus, ICIs were associated with a high risk of rejection in patients with kidney transplants but may lead to improved cancer outcomes. Prospective studies are needed to determine optimal immunosuppression strategies to improve patient outcomes.

Keywords: immune checkpoint inhibitors; kidney transplant; onconephrology; rejection.

PubMed Disclaimer

Figures

Figure 1:
Figure 1:. Characteristics of graft rejection Time to graft rejection.
A. Characteristics of graft rejection. Data are shown as median (IQR) and n (%). *biopsy proven. ICI; immune checkpoint inhibitor, PD-1; programmed cell death protein 1, CTLA-4; cytotoxic T-lymphocyte-associated protein 4, TCMR; T-cell mediated rejection, ABMR; antibody mediated rejection, IVIg; intravenous immunoglobulin. B. Distribution of timing between ICI initiation and graft rejection, and cumulative rate of events is shown.
Figure 2:
Figure 2:. Risk factors of allograft rejection.
Univariate and multivariate analyses of allograft rejection. Odds ratio (OR) and 95% confidence interval (CI) are shown. Cr; serum creatinine, Ref; reference, IS; immunosuppressant, LUKT; living unrelated kidney transplant, LRKTx; living related kidney transplant; DDKTx; deceased kidney transplant.
Figure 3:
Figure 3:. Rejection rate and tumor response of cSCC subgroup.
Allograft rejection rate (A) and objective response rate (ORR, B), stratified by the number of immunosuppressants. In ICI group, cancer response in 2 patients were undetermined and excluded from analysis of ORR. cSCC; cutaneous squamous cell carcinoma
Figure 4:
Figure 4:. Rejection rate and tumor response of melanoma subgroup.
Allograft rejection rate (A) and objective response rate (ORR, B), stratified by the number of immunosuppressants. In ICI group, cancer response in 2 patients were undetermined and excluded from the analysis of ORR. In panel B, Anti-PD-1 indicates ORR of patients who received pembrolizumab or nivolumab monotherapy.

References

    1. Saran R, Robinson B, Abbott KC, et al.: US Renal Data System 2018 Annual Data Report: Epidemiology of Kidney Disease in the United States. Am J Kidney Dis 73:A7–A8, 2019 - PMC - PubMed
    1. Chapman JR, Webster AC, Wong G: Cancer in the transplant recipient. Cold Spring Harb Perspect Med 3, 2013 - PMC - PubMed
    1. Engels EA: Epidemiologic perspectives on immunosuppressed populations and the immunosurveillance and immunocontainment of cancer. Am J Transplant 19:3223–3232, 2019 - PMC - PubMed
    1. Sharma P, Allison JP: The future of immune checkpoint therapy. Science 348:56–61, 2015 - PubMed
    1. Lipson EJ, Bodell MA, Kraus ES, et al.: Successful administration of ipilimumab to two kidney transplantation patients with metastatic melanoma. J Clin Oncol 32:e69–71, 2014 - PMC - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources