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Updated: May 5, 2026

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds
Published on: October 29, 2015
Direct acting antivirals for the treatment of chronic viral hepatitis
1Section of Hepatology and Gastroenterology, Department of Medicine, Imperial College, St Mary's Campus, London W2 1PG, UK.
Abstract:
The development and evaluation of antiviral agents through carefully designed clinical trials over the last 25 years have heralded a new dawn in the treatment of patients chronically infected with the hepatitis B and C viruses, but not so for the D virus (HBV, HCV, and HDV). The introduction of direct acting antivirals (DDAs) for the treatment of HBV carriers has permitted the long-term use of these compounds for the continuous suppression of viral replication, whilst in the case of HCV in combination with the standard of care [SOC, pegylated interferon (PegIFN), and ribavirin] sustained virological responses (SVRs) have been achieved with increasing frequency. Progress in the case of HDV has been slow and lacking in significant breakthroughs.This paper aims to summarise the current state of play in treatment approaches for chonic viral hepatitis patients and future perspectives.
Insights
Antiviral therapies have transformed hepatitis C (HCV) and hepatitis B (HBV) treatment, enabling viral suppression and sustained responses. However, significant progress in treating hepatitis D (HDV) remains limited, highlighting an unmet clinical need.
Area of Science:
- Hepatology
- Virology
- Infectious Diseases
Background:
- Chronic viral hepatitis, including hepatitis B (HBV), C (HCV), and D (HDV) infections, poses a significant global health burden.
- Antiviral drug development has revolutionized HBV and HCV treatment over the past 25 years.
- Hepatitis D virus (HDV) treatment has lagged significantly behind HBV and HCV, with limited therapeutic breakthroughs.
Purpose of the Study:
- To review current treatment strategies for chronic viral hepatitis (HBV, HCV, HDV).
- To discuss the advancements in antiviral therapies for HBV and HCV.
- To highlight the challenges and future perspectives in managing HDV infection.
Main Methods:
- Review of clinical trial data and published literature on antiviral agents for HBV, HCV, and HDV.
- Analysis of treatment outcomes, including viral suppression and sustained virological responses (SVRs).
- Comparative assessment of therapeutic progress across HBV, HCV, and HDV.
Main Results:
- Direct-acting antivirals (DDAs) allow long-term suppression of HBV replication.
- HCV treatment, often with pegylated interferon (PegIFN) and ribavirin, achieves SVRs with increasing success.
- Significant therapeutic advancements for HDV infection are still lacking.
Conclusions:
- Effective antiviral treatments are available for chronic HBV and HCV, significantly improving patient outcomes.
- The lack of progress in HDV treatment underscores the urgent need for novel therapeutic approaches.
- Future research should focus on developing effective therapies for HDV to address this critical unmet medical need.
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