1. BCX4430 - A broad-spectrum antiviral adenosine nucleoside analog under development for the treatment of Ebola virus disease.
- Author
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Taylor R, Kotian P, Warren T, Panchal R, Bavari S, Julander J, Dobo S, Rose A, El-Kattan Y, Taubenheim B, Babu Y, and Sheridan WP
- Subjects
- Adenine analogs & derivatives, Adenosine analogs & derivatives, Administration, Oral, Animals, Clinical Trials, Phase I as Topic, Disease Models, Animal, Drug Discovery trends, Humans, Injections, Intramuscular, Injections, Intraperitoneal, Pyrrolidines, RNA Virus Infections virology, RNA Viruses physiology, Treatment Outcome, Virus Replication drug effects, Antiviral Agents pharmacology, Antiviral Agents therapeutic use, Purine Nucleosides pharmacology, Purine Nucleosides therapeutic use, RNA Virus Infections drug therapy, RNA Viruses drug effects
- Abstract
The adenosine nucleoside analog BCX4430 is a direct-acting antiviral drug under investigation for the treatment of serious and life-threatening infections from highly pathogenic viruses, such as the Ebola virus. Cellular kinases phosphorylate BCX4430 to a triphosphate that mimics ATP; viral RNA polymerases incorporate the drug's monophosphate nucleotide into the growing RNA chain, causing premature chain termination. BCX4430 is active in vitro against many RNA viral pathogens, including the filoviruses and emerging infectious agents such as MERS-CoV and SARS-CoV. In vivo, BCX4430 is active after intramuscular, intraperitoneal, and oral administration in a variety of experimental infections. In nonclinical studies involving lethal infections with Ebola virus, Marburg virus, Rift Valley fever virus, and Yellow Fever virus, BCX4430 has demonstrated pronounced efficacy. In experiments conducted in several models, both a reduction in the viral load and an improvement in survival were found to be related to the dose of BCX4430. A Phase 1 clinical trial of intramuscular administration of BCX4430 in healthy subjects is currently ongoing., (Copyright © 2016 King Saud Bin Abdulaziz University for Health Sciences. All rights reserved.)
- Published
- 2016
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