Elimination of Hepatitis C in Liver Transplant Recipients

Sammy Saab1,2, Youssef Challita1, Phillip H Chen2

  • 1Department of Medicine, University of California at Los Angeles, Los Angeles, California, USA.

Insights

Hepatitis C (HCV) recurrence after liver transplant (LT) is declining. New direct-acting antiviral therapies have made curing HCV in LT recipients feasible, improving outcomes and reducing re-transplant needs.

Area of Science:

  • Hepatology
  • Transplant Surgery
  • Infectious Diseases

Background:

  • Recurrent hepatitis C (HCV) significantly impacts morbidity and mortality in liver transplant (LT) recipients.
  • The advent of non-interferon-based therapies offers a potential strategy for HCV eradication in this vulnerable population.

Purpose of the Study:

  • To evaluate the trend in HCV recurrence and treatment outcomes in LT recipients before and after the introduction of direct-acting antiviral (DAA) agents.
  • To assess the feasibility and impact of HCV elimination on clinical outcomes and the need for re-transplantation.

Main Methods:

  • Retrospective analysis of 634 LT recipients with HCV from January 2005 to June 2017 at UCLA.
  • Data collection included transplant dates, follow-up, laboratory values, and antiviral therapy details relative to LT.
  • Statistical analyses assessed trends in viral suppression, treatment rates, and re-transplantation rates over two distinct study periods.

Main Results:

  • A significant trend towards HCV cure was observed both before and after LT between 2005-2013 and 2014-2016.
  • Antiviral treatment rates within 12 months post-LT increased from 8% (2005-2013) to 74% (2014-2016).
  • Re-LT rates within one year decreased significantly from 5.5% to 1.5% after the introduction of DAAs.

Conclusions:

  • The proportion of viremic LT recipients has decreased over time, indicating successful HCV management.
  • HCV elimination is achievable in LT recipients with modern direct-acting antiviral therapies.
  • Curing HCV is expected to improve long-term clinical outcomes and reduce the need for repeat liver transplantation.

Related Concept Videos

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test01:22

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess...
201
Elimination Kinetics: First-Order and Zero-Order01:05

Elimination Kinetics: First-Order and Zero-Order

Eliminating drugs from the body is a vital process that occurs through excretion or metabolism. Understanding the kinetics of drug elimination is crucial for drug development, dosage determination, and optimizing patient outcomes.
Drug clearance depends on the rate of drug elimination and its plasma concentration. Another important parameter is a drug's half-life, which is the time required for its concentration to decrease by half. In most cases, drug clearance follows first-order...
2.9K
Elimination Reactions02:25

Elimination Reactions

A nucleophile can react with an alkyl halide to give the substitution product by displacing the halogen. Or it can function as a base to give the elimination product by deprotonation of the neighboring carbon to form an alkene. In an elimination reaction, the substrate loses two groups from adjacent carbons forming at least one π bond. The carbon attached to the halogen is called the α carbon, while the adjacent carbon is called the β carbon; hence, these reactions are called...
17.0K
Radical Formation: Elimination00:51

Radical Formation: Elimination

Another method of radical formation is the elimination process. It is the opposite of the addition route and is driven by the instability of the radical. For example, as depicted in Figure 1, dibenzoyl peroxide yields a pair of unstable radicals upon homolysis. Given its instability, this radical spontaneously undergoes elimination via a C–C bond cleavage to form a relatively more stable phenyl radical. The mechanism involves cleavage of the bond between the α and β positions with respect...
2.4K
Gaussian Elimination: Problem Solving01:30

Gaussian Elimination: Problem Solving

Systems of linear equations in several variables are pivotal in modeling complex scenarios involving multiple unknowns and constraints. Such systems are widely used in various fields to represent relationships where several conditions must be simultaneously satisfied. Each variable in the system corresponds to an unknown quantity, while each equation imposes a linear constraint, leading to a structured approach for analyzing and solving real-world problems.A system of three equations with three...
194
Kinetics of Drug Elimination01:17

Kinetics of Drug Elimination

Eliminating drugs from the body is a vital process that occurs through excretion or metabolism. Understanding the kinetics of drug elimination is crucial for drug development, dosage determination, and optimizing patient outcomes.
Drug clearance depends on the rate of drug elimination and its plasma concentration. Another important parameter is the half-life of a drug, which is the time required for its concentration to decrease by half. In most cases, drug clearance follows first-order...
4.2K