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Lufotrelvir (PF-07304814) is an
antiviral Antiviral drugs are a class of medication used for treating viral infections. Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. Unlike most antibiotics, antiviral drugs do no ...
drug developed by
Pfizer Pfizer Inc. ( ) is an American multinational pharmaceutical and biotechnology corporation headquartered on 42nd Street in Manhattan, New York City. The company was established in 1849 in New York by two German entrepreneurs, Charles Pfizer ...
which acts as a 3CL protease inhibitor. It is a
prodrug A prodrug is a medication or compound that, after intake, is metabolized (i.e., converted within the body) into a pharmacologically active drug. Instead of administering a drug directly, a corresponding prodrug can be used to improve how the drug ...
with the
phosphate In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. It most commonly means orthophosphate, a derivative of orthophosphoric acid . The phosphate or orthophosphate ion is derived from phospho ...
group being cleaved ''in vivo'' to yield the active agent PF-00835231. Lufotrelvir is in human
clinical trial Clinical trials are prospective biomedical or behavioral research studies on human participants designed to answer specific questions about biomedical or behavioral interventions, including new treatments (such as novel vaccines, drugs, dietar ...
s for the treatment of
COVID-19 Coronavirus disease 2019 (COVID-19) is a contagious disease caused by a virus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was COVID-19 pandemic in Hubei, identified in Wuhan, China, in December ...
, and shows good activity against COVID-19 including several variant strains, but unlike the related drug
nirmatrelvir Nirmatrelvir is an antiviral medication developed by Pfizer which acts as an orally active 3C-like protease inhibitor. It is part of a nirmatrelvir/ritonavir combination used to treat COVID-19 and sold under the brand name Paxlovid. Devel ...
it is not orally active and must be administered by
intravenous infusion Intravenous therapy (abbreviated as IV therapy) is a medical technique that administers fluids, medications and nutrients directly into a person's vein. The intravenous route of administration is commonly used for rehydration or to provide nutrie ...
, and so has been the less favoured candidate for clinical development overall.


See also

*
3CLpro-1 3CLpro-1 is an antiviral drug related to rupintrivir which acts as a 3CL protease inhibitor and was originally developed for the treatment of human enterovirus 71. It is one of the most potent of a large series of compounds developed as inhibito ...
* Bemnifosbuvir *
Baloxavir marboxil Baloxavir marboxil, sold under the brand name Xofluza, is an antiviral medication for treatment of influenza A and influenza B flu. It was approved for medical use both in Japan and in the United States in 2018, and is taken as a single dose by ...
*
Favipiravir Favipiravir, sold under the brand name Avigan among others, is an antiviral medication used to treat influenza in Japan. It is also being studied to treat a number of other viral infections, including SARS-CoV-2. Like the experimental antiviral ...
* GC376 *
GRL-0617 GRL-0617 is a drug which is one of the first compounds discovered that acts as a selective small-molecule inhibitor of the protease enzyme papain-like protease (PLpro) found in some pathogenic viruses, including the coronavirus SARS-CoV-2. It has ...
* Molnupiravir * Remdesivir * Ribavirin *
Rupintrivir Rupintrivir (AG-7088, Rupinavir) is a peptidomimetic antiviral drug which acts as a 3C and 3CL protease inhibitor. It was developed for the treatment of rhinoviruses, and has subsequently been investigated for the treatment of other viral dise ...
* S-217622 *
Triazavirin Riamilovir (TZV, Triazavirin) is a broad-spectrum antiviral drug developed in Russia through a joint effort of Ural Federal University, Russian Academy of Sciences, Ural Center for Biopharma Technologies and Medsintez Pharmaceutical. It has a nove ...


References

Anti–RNA virus drugs Antiviral drugs COVID-19 drug development Pfizer brands Amides Pyrrolidones Phosphonic acids Indoles Methoxy compounds SARS-CoV-2 main protease inhibitors {{antiinfective-drug-stub