Impact of the direct acting antivirals on chronic hepatitis C prevalence on the Swiss organ transplantation list: a retrospective analysis
Exploration of Digestive Diseases(2023)
Abstract
Aim: In Switzerland, the first access to interferon-free direct-acting antivirals (DAAs) for hepatitis C virus (HCV) treatment was in 2014. This study aimed to analyze the effects of DAAs on the yearly listed numbers of HCV RNA-positive (RNA+) patients and their mortality on the Swiss organ transplantation waiting list (SOWL). Methods: In this retrospective secondary time series analysis of yearly aggregated data on listed and delisted patients from a subset of HCV RNA+ patients on the SOWL, listed patients were grouped by the requested organ, and delisted patients by reason. Time series were split into two periods of equal length, the phases before and after DAA implementation, and the mean difference was tested using the Mann-Whitney U test. Results: From 2008 to 2019, 328 HCV RNA+ patients were listed on SOWL, 86.6% requesting liver, 11.6% kidney, and 1.8% other organ transplantations. A total of 285 RNA+ patients were delisted from SOWL: 14.7% died, 75.4% had been transplanted, and 9.8% were delisted without surgery. There were significant reductions of patients listed for requesting any organ (–21.7, P = 0.004), liver (–18.3, P = 0.004), or kidney (–3.0, P = 0.031) comparing the periods before and after DAA launch. The mean number of delistings after transplantation (–11.2, P = 0.010), or death (–4, P < 0.001) show a significant reduction. Conclusions: With DAAs, the rising trend of HCV RNA+ people waiting for organs was broken, as was the increasing trend of mortality on the SOWL among HCV RNA+ individuals.
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Key words
hepatitis c virus,elimination,liver,transplantation,cirrhosis,hepatocellular carcinoma,time series
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