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- W4284698885 abstract "Abstract: Bradycardia and QTc interval prolongation on the ECG have been reported with remdesivir (Veklury), an antiviral drug recently approved for treating severely ill patients with COVID-19. The objective was to evaluate the effects of remdesivir on cardiac electrophysiology ex vivo and in vivo. Ex vivo: Langendorff retroperfusion experiments were performed on isolated hearts from male Hartley guinea pigs (n = 23, total) exposed to either remdesivir 3, 10, or 30 µmol/L to assess drug-induced prolongation of the monophasic action potential duration measured at 90% repolarization (MAPD 90 ). In vivo: ECG recordings using wireless cardiac telemetry were performed in guinea pigs (n = 6) treated with daily i.p. doses of remdesivir 5 mg/kg on day 1 and 2.5 mg/kg on days 2–10. Ex vivo remdesivir (3, 10, and 30 µmol/L) had no statistically significant effect on MAPD 90 , while pacing the hearts at basic stimulation cycle lengths of 200 or 250 milliseconds, or when the hearts were not paced and beating at their intrinsic heart rate. In a second set of similar ex vivo experiments, remdesivir 10 µmol/L did not potentiate the MAPD 90 -prolonging effects of dofetilide 20 nmol/L (n = 4) hearts. In vivo remdesivir caused small but statistically significant prolongations of the RR and QTc F intervals at day 1 (5 mg/kg) and at day 10 (2.5 mg/kg). No ventricular arrhythmias were ever observed under the effect of remdesivir. Remdesivir causes bradycardia, and mild QTc prolongation, which nonetheless, could be of clinical relevance in many hospitalized patients with COVID-19 concomitantly treated with multiple drugs." @default.
- W4284698885 created "2022-07-08" @default.
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- W4284698885 date "2022-10-01" @default.
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- W4284698885 title "Remdesivir (VEKLURY) for treating COVID-19: Guinea pig ex vivo and in vivo cardiac electrophysiological effects" @default.
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- W4284698885 doi "https://doi.org/10.1097/fjc.0000000000001321" @default.
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