ArticleAnimals : an open access journal from MDPI2021
Unlicensed GS-441524-Like Antiviral Therapy Can Be Effective for at-Home Treatment of Feline Infectious Peritonitis.
Article in Animals : an open access journal from MDPI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed.
- 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
- Multiplex fluorescent immunocytochemistry is a complementary test for the diagnosis of feline infectious peritonitis: a diagnostic clinical trial.Journal of feline medicine and surgery · 2026Article
- Epidemiological and Clinical Insights from 68 Veterinarian-Reported Cases of Feline Infectious Peritonitis During the Documented FIP Epizootic in Cyprus.Pathogens (Basel, Switzerland) · 2026Article
- Update on Treatment of Feline Infectious Peritonitis: European Advisory Board on Cat Diseases (ABCD) Guidelines.Viruses · 2026Review
- 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
- 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
- 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
- Analysis of risk factors, clinical data, treatment outcomes for cats with feline infectious peritonitis using GS-441524 (2020-2024).Scientific reports · 2025Article
- Viral Coinfections Potentially Associated with Feline Chronic Gingivostomatitis in Cats with Feline Infectious Peritonitis.Viruses · 2025Article
- Clinical therapeutics in feline medicine: updates for old and new drugs.Journal of feline medicine and surgery · 2025Review
- Article
- From Challenge to Cure: A Look at Feline Infectious Peritonitis and Emerging Treatment Strategies and Breakthroughs.Veterinary sciences · 2025Review
- Pharmacokinetics of GS-441524 following intravenous remdesivir in six cats and results of therapeutic drug monitoring during treatment of feline infectious peritonitis: 22 cases (2021-2024).The Journal of small animal practice · 2025Article
- Myocarditis in Cats with Feline Infectious Peritonitis Can Be Cured with GS-441524 and Symptomatic Cardiovascular Treatment.Animals : an open access journal from MDPI · 2025Article
- Evaluation of selected inflammatory markers in cats with feline infectious peritonitis before and after therapy.BMC veterinary research · 2025Article
- Efficacy of oral remdesivir in treating feline infectious peritonitis: a prospective observational study of 29 cats.Journal of feline medicine and surgery · 2025Article
- Recent Issues in the Development and Application of Targeted Therapies with Respect to Individual Animal Variability.Animals : an open access journal from MDPI · 2025Review
- Post feline infectious peritonitis progressive hydrocephalus: a case series.Frontiers in veterinary science · 2025Article
- Whole blood RNA profiling in cats dissects the host immunological response during recovery from feline infectious peritonitis.PloS one · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The goal of this study was to formally evaluate the administration of unlicensed, crowd-sourced antiviral GS-441524-like therapy for cats suspected to have feline infectious peritonitis (FIP), a previously fatal disease. Members of a large social media support and GS-441524-like drug distribution group were surveyed via the Internet. The survey was targeted toward owners who had treated their cats for at least 12 weeks with unlicensed GS-441524-like drugs. Of the 393 analyzed surveys which met inclusion criteria, 73.7% of owners utilizing this therapy were from the United States. Only 8.7% of owners reported receiving help from their veterinarian in administering the treatment to their cat. The mean cost of treatment was USD 4920. A majority of owners (88.2%) reported noticeable improvement in clinical signs within one week of initiating therapy. At the time of the survey, 96.7% (380 cats) were alive, with 54.0% of them considered cured and another 43.3% being monitored in the 12-week observation period. A total of 12.7% of the cats suffered a relapse of clinical signs of FIP, and 3.3% of the cats died despite GS-441524-like therapy. Reported complications were mostly related to owner administration of subcutaneous injections of the acidic GS-441525-like therapy, such as vocalization, pain, struggling, and injection-site wounds. Limitations of this study include a retrospective design, bias in case selection, reliance on owner-reported data, and inability to confirm the contents of unlicensed pharmaceuticals; however, important lessons can be learned from the experiences of these owners. While unconventional, and certainly not free from medical and legal risks, unlicensed, at-home GS-441524-like therapy, according to owner reports, can apparently offer benefits in the treatment of cats suspected of FIP.
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