Bioactivity | Galidesivir (BCX4430) hydrochloride, an adenosine analog and a direct-acting antiviral agent, disrupts viral RNA-dependent RNA polymerase (RdRp) activity. Galidesivir hydrochloride is active in vitro against many RNA viral pathogens, including the filoviruses and emerging infectious agents such as MERS-CoV, SARS-CoV, and SARS-CoV-2. Galidesivir hydrochloride inhibits some negative-sense RNA viruses with EC50s ranging from ~3 to ~68 μM[1][2][3]. |
Target | RdRp inhibitor |
Invitro | Cellular kinases phosphorylate Galidesivir (BCX4430) hydrochloride to a triphosphate that mimics ATP; viral RNA polymerases incorporate the drug's monophosphate nucleotide into the growing RNA chain, causing premature chain termination[1].Galidesivir hydrochloride effectively inhibits the infection of Vero cells with YFV. The EC50 determined by the neutral red uptake assay is 8.3 μg/ml (24.5 μM)[3]. |
In Vivo | Galidesivir (BCX4430) hydrochloride 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, Galidesivir hydrochloride has demonstrated pronounced efficacy[1].Galidesivir hydrochloride (4 mg/kg; i.p.; twice daily for 7 days) is effectively in a hamster model of yellow fever (YF)[4]. Animal Model: |
Name | Galidesivir hydrochloride |
CAS | 222631-44-9 |
Formula | C11H16ClN5O3 |
Molar Mass | 301.73 |
Appearance | Solid |
Transport | Room temperature in continental US; may vary elsewhere. |
Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
Reference | [1]. Taylor R, et al. BCX4430 - A broad-spectrum antiviral adenosine nucleoside analog under development for the treatment of Ebola virus disease. J Infect Public Health. 2016;9(3):220-226. [2]. Elfiky AA, et al. ICN-1229, Remdesivir, PSI-7977, Galidesivir, and GS 1278 against SARS-CoV-2 RNA dependent RNA polymerase (RdRp): A molecular docking study. Life Sci. 2020 Mar 25:117592. [3]. Warren TK, et al. Protection against filovirus diseases by a novel broad-spectrum nucleoside analogue BCX4430. Nature. 2014;508(7496):402-405. [4]. Julander JG, et al. BCX4430, a novel nucleoside analog, effectively treats yellow fever in a Hamster model. Antimicrob Agents Chemother. 2014;58(11):6607-6614. |