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2020 ; 159
(ä): 104960
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
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English Wikipedia
Discovery of the FDA-approved drugs bexarotene, cetilistat,
diiodohydroxyquinoline, and abiraterone as potential COVID-19 treatments with a
robust two-tier screening system
#MMPMID32473310
Yuan S
; Chan JFW
; Chik KKH
; Chan CCY
; Tsang JOL
; Liang R
; Cao J
; Tang K
; Chen LL
; Wen K
; Cai JP
; Ye ZW
; Lu G
; Chu H
; Jin DY
; Yuen KY
Pharmacol Res
2020[Sep]; 159
(ä): 104960
PMID32473310
show ga
Coronavirus Disease 2019 (COVID-19) caused by the emerging severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with a crude case
fatality rate of about 0.5-10 % depending on locality. A few clinically approved
drugs, such as remdesivir, chloroquine, hydroxychloroquine, nafamostat, camostat,
and ivermectin, exhibited anti-SARS-CoV-2 activity in vitro and/or in a small
number of patients. However, their clinical use may be limited by anti-SARS-CoV-2
50 % maximal effective concentrations (EC(50)) that exceeded their achievable
peak serum concentrations (Cmax), side effects, and/or availability. To find more
immediately available COVID-19 antivirals, we established a two-tier drug
screening system that combines SARS-CoV-2 enzyme-linked immunosorbent assay and
cell viability assay, and applied it to screen a library consisting 1528
FDA-approved drugs. Cetilistat (anti-pancreatic lipase), diiodohydroxyquinoline
(anti-parasitic), abiraterone acetate (synthetic androstane steroid), and
bexarotene (antineoplastic retinoid) exhibited potent in vitro anti-SARS-CoV-2
activity (EC(50) 1.13-2.01 ?M). Bexarotene demonstrated the highest Cmax:EC(50)
ratio (1.69) which was higher than those of chloroquine, hydroxychloroquine, and
ivermectin. These results demonstrated the efficacy of the two-tier screening
system and identified potential COVID-19 treatments which can achieve effective
levels if given by inhalation or systemically depending on their
pharmacokinetics.