May 31, 2020

Rationale of a loading dose initiation for hydroxychloroquine treatment in COVID-19 infection in the DisCoVeRy trial

The Journal of Antimicrobial Chemotherapy
Minh Patrick LêC-20–15 DisCoVeRy French Steering Committee

Abstract

Around the world, several dose regimens of hydroxychloroquine have been used for COVID-19 infection treatment, with the objective of identifying a short-term course. Hydroxychloroquine was found to decrease the viral replication in a concentration-dependent manner in vitro and to be more active when added prior to the viral challenge. A loading dose is used to rapidly attain a target drug concentration, which is usually considered as approximately the steady-state concentration. With a loading dose, the minimum effective concentration is reached much more rapidly than when using only the maintenance dose from the start. Thus, we propose a hydroxychloroquine sulphate dose regimen of 400 mg twice daily at Day 1 then 400 mg once daily from Day 2 to Day 10. We aim to evaluate this in the C-20-15 DisCoVeRy trial.

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Mentioned in this Paper

Hydroxychloroquine
HIV Viral Load
Evaluation
Treatment Protocols
Virus Replication
Hydroxychloroquine Sulfate
Discovery Science
A 19
World

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