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Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 CPT+Pharmacometrics+Syst+Pharmacol 2020 ; 9 (9): 509-514 Nephropedia Template TP
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Timing of Antiviral Treatment Initiation is Critical to Reduce SARS-CoV-2 Viral Load #MMPMID32558354
Goncalves A; Bertrand J; Ke R; Comets E; de Lamballerie X; Malvy D; Pizzorno A; Terrier O; Rosa Calatrava M; Mentre F; Smith P; Perelson AS; Guedj J
CPT Pharmacometrics Syst Pharmacol 2020[Sep]; 9 (9): 509-514 PMID32558354show ga
We modeled the viral dynamics of 13 untreated patients infected with severe acute respiratory syndrome-coronavirus 2 to infer viral growth parameters and predict the effects of antiviral treatments. In order to reduce peak viral load by more than two logs, drug efficacy needs to be > 90% if treatment is administered after symptom onset; an efficacy of 60% could be sufficient if treatment is initiated before symptom onset. Given their pharmacokinetic/pharmacodynamic properties, current investigated drugs may be in a range of 6-87% efficacy. They may help control virus if administered very early, but may not have a major effect in severely ill patients.