FIP GS-441524 Remdesivir Intermediate CAS: 1191237-69-0
Product Description
GS-441524 is a nucleoside analogue antiviral drug which became advanced with the aid of using Gilead Sciences. It is the primary plasma metabolite of the antiviral prodrug remdesivir, and has a half-existence of round 24 hours in human patients. Remdesivir and GS-441524 had been each located to be powerful in vitro in opposition to tom cat coronavirus traces liable for tom cat infectious peritonitis (FIP), a deadly systemic ailment affecting home cats. GS-441524 has been located to be powerful remedy for FIP.
| Appearance | Tablets |
| GS Standard | 99.5%min |
| Content | 20mg/tablets, 40mg/tablets, or customized |
| Application | For CAT FIP R&D Use ONLY |
| Recommended dosage | 20 mg/kg |
If a cat's immune system is healthy and mature, the white blood cells should fight off an infection or virus, and allow the cat to build up an immune response, or antibodies. Cats who develop FIP have an immune defect or deficiency that causes the white blood cells to replicate, rather than fight, the virus. Essentially, the cats immune system is spreading the virus throughout the cat's body rather than trying to eliminate it. Cats who have no immune response develop wet FIP, while cats who have a partial immune response develop dry FIP.
The nucleoside analog GS441524 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. In layman's terms, GS441524 interjects itself into the chain reaction and stops the replication of the virus.
Use and research
Since FIP is commonly deadly and there aren't anyt any permitted remedies available, GS-441524 has reportedly been offered at the black marketplace and utilized by puppy proprietors to deal with affected cats, despite the fact that Gilead Sciences has refused to license the drug for veterinary use. Its efficacy for this cause has been conclusively proven in more than one trials, together with discipline trials,or even in greater complex sorts of FIP together with people with multisystemic or neurological involvement.
Pharmacology
Pharmacodynamics
GS-441524 nucleoside is phosphorylated with the aid of using nucleoside kinases (likely adenosine kinase (ADK), that is the enzyme that phosphorylates the structurally comparable ribavirin), after which phosphorylated once more with the aid of using nucleoside-diphosphate kinase (NDK) to the energetic nucleotide triphosphate form. The triphosphate of GS-441524, GS-443902, is likewise the bioactive anti-viral agent generated with the aid of using remdesivir, however is generated with the aid of using a extraordinary biochemical mechanism from the later.
Mechanism of action
Intracellular triple-phosphorylation of GS-441524 yields its energetic 1'-cyano-substituted adenosine triphosphate analogue, which immediately disrupts viral RNA replication with the aid of using competing with endogenous NTPs for incorporation into nascent viral RNA transcripts and triggering not on time chain termination of RNA-structured RNA polymerase.
Tolerance
In vitro experiments in Crandell Rees pussycat kidney (CRFK) cells observed GS-441524 become safe at a hundred µM concentrations, a hundred instances the dose powerful at inhibiting FIPV replication in cultured CRFK cells and inflamed macrophages. Clinical trials in cats imply the drug is well-tolerated, with the number one aspect impact being dermal inflammation from the acidity of the injection mix.
FAQ
Q: What is GS441?
A: GS is short for GS which is an experimental anti-viral drug (nucleoside analog) that has cured cats with FIP in field .
It is currently available as an injection or an oral medication although the oral version is still not widely available yet. Please checking with Julia for the details!
Q: How long is the treatment?
A: Recommended treatment based on Niche Petcare is a minimum of 12 weeks of daily sub-cutaneous injections.
Bloodwork should be checked at the end of 12 weeks and cat's symptoms should be assessed to see if additional treatment is needed.
Q: What are the side effects of GS441?
A: The only known side effects of GS are pain during injections and the possibility of skin lesions forming at the injection sites.
Q: My kitty is on GS and now has diarrhea. What should I do?
A: We recommend giving B-12, bland food and a probiotic. Pumpkin puree is also okay to give. Fortiflora or Proviable are two probiotics. If the cat seems to be getting dehydrated, giving sub-cutaneous fluids is okay
Q: How long after completing FIP treatment should I wait to spay/neuter my cat?
A: 3 months.
