Recent patents on nucleoside and nucleotide inhibitors for HCV

Jae H Shim1, Zhi Hong, Jim Z Wu

  • 1Drug Discovery, Valeant Pharmaceuticals International, 3300 Hyland Avenue, Costa Mesa, California 92626, USA. jshim@valeant.com

Insights

New patents show promising nucleoside and nucleotide inhibitors for Hepatitis C virus (HCV) infection. These drugs target viral polymerases, offering potential new treatments for the 170 million people chronically infected worldwide.

Area of Science:

  • Hepatology
  • Virology
  • Medicinal Chemistry

Background:

  • Hepatitis C virus (HCV) infection is a major global health concern, leading to liver cirrhosis and cancer.
  • An estimated 170 million individuals worldwide suffer from chronic HCV infection.
  • Current therapeutic options for HCV are limited, driving the need for novel drug development.

Purpose of the Study:

  • To review recent patents on nucleoside and nucleotide inhibitors for HCV treatment.
  • To analyze the chemical structures, biological activities, and mechanisms of action of these inhibitors.
  • To discuss drug resistance profiles and the development status of promising candidates.

Main Methods:

  • Comprehensive review of patent literature concerning nucleoside and nucleotide inhibitors for HCV.
  • Analysis of claimed chemical entities and their associated biological data.
  • Evaluation of reported mechanisms of action and drug resistance patterns.

Main Results:

  • Numerous patents have been filed for novel nucleoside and nucleotide inhibitors targeting HCV.
  • These compounds function as chain terminators, mutagens, or competitive inhibitors of viral polymerases.
  • Several promising nucleoside inhibitors are in various stages of development, with detailed activity and resistance data.

Conclusions:

  • Nucleoside and nucleotide inhibitors represent a significant area of research and development for anti-HCV therapeutics.
  • Patent activity highlights ongoing innovation in designing effective and safe treatments for HCV.
  • Further development of these inhibitors holds promise for improving outcomes for chronically infected patients.

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