Drug Repurposing for Antivirals

Pitfalls of Drug Repurposing and Lesson Learned from COVID-19

Author(s): Sandeep Purkar, Ramanlal Kachave*, Shilpa Harak, Dhanashri Mali and Deepali Bhandari

Pp: 272-300 (29)

DOI: 10.2174/9798898811143125010012

* (Excluding Mailing and Handling)

Abstract

The new beta coronavirus responsible for the current COVID19 pandemic had started to spread among people towards the end of 2019. Unmatched global searches were conducted to identify and reuse antiviral drugs from lists of approved drugs and recognised bioactive compounds. Antiviral drug development standards were rapidly circumvented, which often led to unsatisfactory results. The main drawbacks of this technique include promiscuous or cytotoxic compounds resulting in false positives. Several articles, press announcements, and media posts misled readers and occasionally diverted important attention from the search for reusable drugs. Funding for clinical trials with a low possibility of success, the empirical identification of factors that mitigate clinical indicators—such as the development of better disease management through immunomodulators and promiscuous/cytotoxic substances that cause inaccurate results—has led to breakthroughs in the clinic instead of in the lab.


Keywords: Baricitinib, COVID-19, Dexamethasone, Molnupiravir, Remdesivir, SARS-CoV-2, Tocilizumab.

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