scholarly journals Direct-Acting Antiviral Agents for Patients With Hepatitis C Virus Genotype 1 Infection Are Cost-Saving

2017 ◽  
Vol 15 (6) ◽  
pp. 827-837.e8 ◽  
Author(s):  
Jagpreet Chhatwal ◽  
Tianhua He ◽  
Chin Hur ◽  
Maria A. Lopez-Olivo
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Cost Saving ◽  
Antiviral Agents ◽  
Genotype 1 ◽  
Virus Genotype ◽  
Direct Acting Antiviral ◽  
Direct Acting ◽  
Direct Acting Antiviral Agents

New direct-acting antiviral agents for the treatment of hepatitis C virus infection and perspectives

Gut ◽  
2012 ◽  
Vol 61 (Suppl 1) ◽  
pp. i36-i46 ◽  
Author(s):  
Christoph Welsch ◽  
Arun Jesudian ◽  
Stefan Zeuzem ◽  
Ira Jacobson
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Antiviral Agents ◽  
Pegylated Interferon ◽  
The Novel ◽  
Genotype 1 ◽  
Direct Acting Antiviral ◽  
Hcv Therapy ◽  
Direct Acting ◽  
Direct Acting Antiviral Agents

Until recently, the standard of care (SOC) for patients with chronic hepatitis C virus (HCV) infection has consisted of a combination of pegylated interferon-N1 plus ribavirin, administered for 24- to 48-weeks depending on the HCV genotype. The sustained virologic response rate for this SOC has been only about 50% in patients infected with genotype 1 HCV, the most prevalent genotype in Europe and North America. HCV therapy has been revolutionised recently by the approval of two direct-acting antiviral agents (DAA) against the NS3/4A serine protease for use in genotype 1 HCV, the ketoamide inhibitors boceprevir and telaprevir. The novel SOC marks the beginning of an extraordinary new era in HCV therapy. We review this new SOC with an emphasis on practical issues related to protease inhibitors, e.g. prescribing guidelines, futility rules and management of adverse events. We also give a perspective on what to expect in the coming years. Newer DAA with simplified dosing regimens and/or minimal toxicity which, when used in combination, will lead to viral eradication in most if not all CHC patients who undergo treatment. The novel agents in clinical development are paving the way for future interferon-sparing regimens.

scholarly journals Clinical and virological properties of hepatitis C virus genotype 4 infection in patients treated with different direct-acting antiviral agents

2018 ◽  
Vol Volume 11 ◽  
pp. 2117-2127 ◽  
Author(s):  
Claudia Minosse ◽  
Marina Selleri ◽  
Emanuela Giombini ◽  
Barbara Bartolini ◽  
Maria Rosaria Capobianchi ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Antiviral Agents ◽  
Virus Genotype ◽  
Genotype 4 ◽  
Direct Acting Antiviral ◽  
Direct Acting ◽  
Direct Acting Antiviral Agents

Effect on the adherence to concomitant medications after initiation of treatment with direct-acting antiviral agents against hepatitis C virus

2020 ◽  
Vol 43 (8) ◽  
pp. 418-425
Author(s):  
Maria Isabel Guzman Ramos ◽  
Mercedes Manzano-García ◽  
M. de las Aguas Robustillo-Cortés ◽  
Juan Antonio Pineda ◽  
Ramón Morillo-Verdugo
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Antiviral Agents ◽  
Direct Acting Antiviral ◽  
Concomitant Medications ◽  
Direct Acting ◽  
Direct Acting Antiviral Agents

scholarly journals Computer-aided identification of a series of novel ligands showing high potency as hepatitis C virus NS3/4A protease inhibitors

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Stephen Ejeh ◽  
Adamu Uzairu ◽  
Gideon Adamu Shallangwa ◽  
Stephen E. Abechi
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Binding Energy ◽  
Protease Inhibitor ◽  
Protease Inhibitors ◽  
Antiviral Agents ◽  
High Potency ◽  
Direct Acting Antiviral ◽  
Direct Acting ◽  
Direct Acting Antiviral Agents

Abstract Background Hepatitis C virus (HCV) is a global medical condition that causes several life-threatening chronic diseases in the liver. The conventional interferon-free treatment regimens are currently in use by a blend of direct-acting antiviral agents (DAAs) aiming at the viral NS3 protease. However, major concerns may be the issue of DAA-resistant HCV strains and the limited availability to the DAAs due to their high price. Due to this crisis, the developments of a new molecule with high potency as an NS3/4A protease inhibitor of the hepatitis-C virus remain a high priority for medical research. This study aimed to use in-silico methods to identify high potent molecule as an NS3/4A protease inhibitor and investigating the binding energy of the identified molecule in comparison with approved direct-acting antiviral agents (Telaprevir, Simeprevir, and Voxilaprevir) through molecular docking. Results The model obtained by in-silico method have the following statistical records, coefficient of determination (r2) of 0.7704, cross-validation (q2LOO = 0.6914); external test set (r2(pred) = 0.7049) and Y-randomization assessment (cR2p = 0.7025). The results from the model were used to identify 12 new potential human HCV NS3/4A protease inhibitors, and it was observed that the identified molecule is well-fixed when docked with the receptor and was found to have the lowest binding energy of − 10.7, compared to approved direct-acting antiviral agents (Telaprevir, Simeprevir, and Voxilaprevir) with − 9.5, − 10.0, − 10.5 binding energy, respectively. Conclusion The binding affinity (− 10.7) of the newly identified molecule docked with 3D structures of HCV NS3/4a protease/helicase (PDB ID: 4A92) was found to be better than that of Telaprevir, Simeprevir, and Voxilaprevir (approved direct-acting antiviral agents) which are − 9.5, − 10.0, and − 10.5, respectively. Hence, a novel molecule was identified showing high potency as HCV NS3/4a protease inhibitors.

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