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Updated: Jun 25, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
Published on: November 5, 2021
COVID-19 therapeutics
Daniele Focosi1, Massimo Franchini2, Fabrizio Maggi3
1North-Western Tuscany Blood Bank, Pisa University Hospital, Pisa, Italy.
Abstract:
SUMMARYSince the emergence of COVID-19 in 2020, an unprecedented range of therapeutic options has been studied and deployed. Healthcare providers have multiple treatment approaches to choose from, but efficacy of those approaches often remains controversial or compromised by viral evolution. Uncertainties still persist regarding the best therapies for high-risk patients, and the drug pipeline is suffering fatigue and shortage of funding. In this article, we review the antiviral activity, mechanism of action, pharmacokinetics, and safety of COVID-19 antiviral therapies. Additionally, we summarize the evidence from randomized controlled trials on efficacy and safety of the various COVID-19 antivirals and discuss unmet needs which should be addressed.
Insights
This review examines COVID-19 antiviral therapies, including their efficacy, safety, and mechanisms. It highlights ongoing challenges in treatment selection for high-risk patients and funding for new drug development.
Area of Science:
- Infectious Diseases
- Pharmacology
- Virology
Background:
- The COVID-19 pandemic necessitated rapid development of antiviral therapies.
- Current treatment options face challenges due to viral evolution and controversial efficacy.
- Uncertainty remains regarding optimal therapies for high-risk individuals.
Purpose of the Study:
- To review the antiviral activity, mechanism of action, pharmacokinetics, and safety of COVID-19 antiviral therapies.
- To summarize evidence from randomized controlled trials on the efficacy and safety of these antivirals.
- To discuss unmet needs in COVID-19 antiviral drug development.
Main Methods:
- Comprehensive literature review of COVID-19 antiviral therapies.
- Analysis of data from randomized controlled trials (RCTs).
- Evaluation of pharmacokinetic and safety profiles.
Main Results:
- Multiple antiviral agents have been studied, with varying degrees of efficacy and safety.
- Viral evolution poses a significant challenge to treatment effectiveness.
- The drug pipeline faces funding shortages and development fatigue.
Conclusions:
- Further research is needed to optimize COVID-19 treatment strategies, especially for high-risk populations.
- Addressing unmet needs in antiviral development is crucial for future pandemic preparedness.
- Continued evaluation of existing and novel antivirals is essential.
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