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Lower Likelihood of Post-transplant Graft Failure, Death, and Retransplantation in the Era of Direct-Acting Antivirals.


ABSTRACT:

Background

Direct-acting antivirals (DAAs) are expected to improve outcomes for patients with hepatitis C virus (HCV) infection after liver transplantation (LT). We aim to evaluate trends in post-LT outcomes with availability of DAAs.

Methods

We retrospectively evaluated US adults transplanted from January 1, 2002, to March 31, 2018, using the United Network for Organ Sharing Registry, stratified by pre-DAA (January 1, 2002- to December 31, 2013) vs. post-DAA (January 1, 2014-, to March 31, 2018) eras. Adjusted multivariate Cox regression analyses and competing risk models evaluated likelihood of graft failure, death, and retransplantation (re-LT).

Results

Among 97,147 patients, 30.2% had HCV infection and 19.4% had hepatocellular carcinoma (HCC). Of all patients, 31.9% experienced graft failure, 27.1% died after LT, and 4.7% underwent re-LT. The post-DAA era experienced lower likelihood of graft failure (hazard ratio [HR] = 0.69, p < 0.001). Although patients with HCV infection (HR = 1.18, p < 0.001) and HCC (HR = 1.11, p < 0.001) had higher likelihood of graft failure in the pre-DAA era, no differences were seen in the post-DAA era. Although patients with HCV infection (HR = 1.20, p < 0.001) and HCC (HR = 1.17, p < 0.001) had higher likelihood of death after LT in the pre-DAA era, no differences were seen in the post-DAA era. The post-DAA era had lower likelihood of post-LT death when stratified by non-HCC (HR = 0.70, p < 0.001) and HCC cohorts (HR = 0.67, p < 0.001) or by non-HCV (HR = 0.73, p < 0.001) and HCV (HR = 0.58, p < 0.001) cohorts.

Conclusion

Although patients with HCV infection and HCC had higher risk of post-LT graft failure and death in the pre-DAA era, the disparity disappeared in the post-DAA era independently of each other. This likely reflects impact of DAAs on improving post-LT outcomes among patients with HCV infection and improved selection of patients with HCC for LT after 2014.

SUBMITTER: Young K 

PROVIDER: S-EPMC7719962 | biostudies-literature |

REPOSITORIES: biostudies-literature

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