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Only 13% of Liver Transplant (LT) Recipients with Moderate to Severe Kidney Disease (KD) Tolerate Conversion to Everolimus and Reduced Tacrolimus (EVR/rTac).

S.-H. Pan, I. Kim, A. Klein, A. Annamalai, T. Todo, N. Nissen.

Liver Transplant, Cedars-Sinai Medical Center, Los Angeles, CA.

Meeting: 2016 American Transplant Congress

Abstract number: B175

Keywords: Immunosuppression, Nephrotoxicity, Proteinuria, Rapamycin

Session Information

Session Name: Poster Session B: Kidney Issue in Liver Transplantation

Session Type: Poster Session

Date: Sunday, June 12, 2016

Session Time: 6:00pm-7:00pm

 Presentation Time: 6:00pm-7:00pm

Location: Halls C&D

EVR/rTac has been reported to improve renal function in LT recipients with adequate kidney function (eGFR > 80ml/min); however, this strategy in LT patients with moderate to severe KD (eGFR 15-59ml/min) is unclear. We report our experience with EVR/rTac conversion in LT patients with moderate to severe KD to assess clinical outcomes. Methods: LT recipients with moderate to severe KD were screened for initiation of EVR/rTac between 4/2013 and 10/2015. Exclusion criteria included baseline proteinuria (> 0.5gm/day or <0.5gm/day with significant comorbidity), absolute neutrophil count < 1200/UL, or active hepatitis C. EVR and Tac levels, kidney function, urinary protein, and lipid were monitored pre- and post- EVR/rTac conversion. Rejection and adverse events were analyzed. Results: Forty seven patients underwent screening. Twenty four patients were ineligible for conversion and 1 patient's KD resolved [table 1]. Of the 22 patients undergoing conversion, 16 patients discontinued EVR due to EVR adverse events. The mean therapy was 325 days. Tac levels were significantly lower after EVR/rTac conversion but the renal function remained unchanged [table 2]. No patients experienced rejection. Of the 6 remaining patients on EVR/rTac, 5 are on lipid lower agents and 4 are on ACEi/ARB. Conclusions: Most LT patients with moderate to severe KD had risk factors rendering them ineligible for EVR/rTac conversion. In those converters, 73% of them withdrew primarily due to EVR-associated adverse effects. In selected patients with moderate to severe KD, conversion to EVR/rTac may be an alternative strategy to reserve renal function.

Table 1

 * p value < 0.05

Tac level

ng/ml

Cr.

mg/dL

Cr.Cl

ml/min

eGFR

ml/min

Urine protein*

g/day

Chol

mg/dL

TG

mg/dL

EVR, N=22

6.8 + 2.3

1.59 + 0.38

44 + 16

47 + 13

85 + 125

155 + 37

129 + 70

n-EVR, N=25

6.4 + 2.6

1.97 + 0.78

39 + 21

43 + 18

1397 + 2570

153 + 49

164 + 83

Table 2

N

Tac level*

EVR level

Cr.

eGFR

Chol

TG

Pre EVR

13

6.2 + 2.1

 

1.60 + 0.36

48 + 13

149 + 36

93 + 36

Month 3

13

3.3 + 1.7

4.2 + 1.6

1.55 + 0.62

54 + 20

182 + 33

150 + 92

Pre EVR

7

6.2 + 2.3

 

1.50 + 0.34

50 + 15

164 + 33

100 + 39

Month 18

7

2.2 + 1.1

4.0 + 1.5

1.59 + 0.65

52 + 18

200 + 21

121 + 84

CITATION INFORMATION: Pan S.-H, Kim I, Klein A, Annamalai A, Todo T, Nissen N. Only 13% of Liver Transplant (LT) Recipients with Moderate to Severe Kidney Disease (KD) Tolerate Conversion to Everolimus and Reduced Tacrolimus (EVR/rTac). Am J Transplant. 2016;16 (suppl 3).

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To cite this abstract in AMA style:

Pan S-H, Kim I, Klein A, Annamalai A, Todo T, Nissen N. Only 13% of Liver Transplant (LT) Recipients with Moderate to Severe Kidney Disease (KD) Tolerate Conversion to Everolimus and Reduced Tacrolimus (EVR/rTac). [abstract]. Am J Transplant. 2016; 16 (suppl 3). https://atcmeetingabstracts.com/abstract/only-13-of-liver-transplant-lt-recipients-with-moderate-to-severe-kidney-disease-kd-tolerate-conversion-to-everolimus-and-reduced-tacrolimus-evrrtac/. Accessed May 16, 2025.

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