ArticleVeterinary microbiology2018
The nucleoside analog GS-441524 strongly inhibits feline infectious peritonitis (FIP) virus in tissue culture and experimental cat infection studies.
Article in Veterinary microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 151 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
151 citing papers in PubMed, 2 syntheses or guidelines pooled it, 216 citations in OpenAlex.
- Efficacy of GS-441524 for Feline Infectious Peritonitis: A Systematic Review (2018-2024).Pathogens (Basel, Switzerland) · 2025Pooled it
- Mortality Benefit of Remdesivir in COVID-19: A Systematic Review and Meta-Analysis.Frontiers in medicine · 2020Pooled it
- Profiling Fecal Microbiome and Metabolites in a Feline Infectious Peritonitis Virus Challenge Model in Kittens: A Pilot Discovery Study.International journal of molecular sciences · 2026Article
- A feline coronavirus nucleocapsid protein disrupts ZC3HAV1-viral RNA association to counteract host RNA-level restriction.PLoS pathogens · 2026Article
- A Validated Eco-Friendly High-Performance Liquid Chromatography Assay for Therapeutic Drug Monitoring of GS-441524 in Cats with Feline Infectious Peritonitis.Pathogens (Basel, Switzerland) · 2026Article
- A Natural Peptide from the American Cockroach Suppresses Feline Infectious Peritonitis Virus.Biology · 2026Article
- Glycyrrhiza polysaccharide inhibits feline infectious peritonitis virus infection screened by a recombinant virus expressing eGFP protein.BMC veterinary research · 2026Article
- LC-MS/MS Therapeutic Drug Monitoring of GS-441524 in Serum and Various Compounded Formulations to Improve the Treatment of Feline Infectious Peritonitis.Animals : an open access journal from MDPI · 2026Article
- Immune Cell Signaling in Feline Infectious Peritonitis Virus Infection and Implications for Vaccine Design.Vaccines · 2026Review
- Descriptive assessment of cardiac changes in cats with feline infectious peritonitis.Journal of veterinary internal medicine · 2026Article
- Serological response to feline coronavirus in the UK domestic cat population.The Journal of general virology · 2026Article
- Update on Treatment of Feline Infectious Peritonitis: European Advisory Board on Cat Diseases (ABCD) Guidelines.Viruses · 2026Review
- Treatment of non-effusive feline infectious peritonitis using oral remdesivir or GS-441524: a randomized, double-blind, non-inferiority trial.Journal of feline medicine and surgery · 2026Article
- Ocular findings in cats with feline infectious peritonitis treated with GS-441524: a preliminary prospective study of 118 cases.Journal of feline medicine and surgery · 2026Article
- Clinical Features and Outcomes of Treatment for Effusive Feline Infectious Peritonitis with GS-441524 in Seventeen Retrovirus-Positive Cats.Pathogens (Basel, Switzerland) · 2026Article
- Therapeutic Drug Monitoring of GS-441524 in Cats with Feline Infectious Peritonitis: Pharmacokinetic Variability and Implications for Dose Optimization.Pathogens (Basel, Switzerland) · 2026Article
- Beyond macrophages: FIPV tropism includes T and B lymphocytes.Veterinary microbiology · 2026Article
- Feline Infectious Peritonitis: A Challenging Diagnostic and Therapeutic Labyrinth.Animals : an open access journal from MDPI · 2026Review
- FcγR-ACE2 cooperative antibody-dependent enhancement in human and veterinary coronaviruses: mechanistic insights, comparative immunology, and implications for nano-engineered immunomodulatory platforms.Frontiers in immunology · 2026Review
- Clinical trial of molnupiravir with or without an oral immune stimulant as a first-line treatment of feline infectious peritonitis.Journal of feline medicine and surgery · 2026Article
91 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Feline infectious peritonitis (FIP) is a common and highly lethal coronavirus disease of domestic cats. Recent studies of diseases caused by several RNA viruses in people and other species indicate that antiviral therapy may be effective against FIP in cats. The small molecule nucleoside analog GS-441524 is a molecular precursor to a pharmacologically active nucleoside triphosphate molecule. These analogs act as an alternative substrate and RNA-chain terminator of viral RNA dependent RNA polymerase. We determined that GS-441524 was non-toxic in feline cells at concentrations as high as 100 uM and effectively inhibited FIPV replication in cultured CRFK cells and in naturally infected feline peritoneal macrophages at concentrations as low as 1 uM. We determined the pharmacokinetics of GS-441524 in cats in vivo and established a dosage that would sustain effective blood levels for 24 h. In an experimental FIPV infection of cats, GS-441524 treatment caused a rapid reversal of disease signs and return to normality with as little as two weeks of treatment in 10/10 cats and with no apparent toxicity.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.