Safety study of 649 patients finding that HCQ administration is safe for short-term treatment for patients with COVID-19 infection regardless of the clinical setting of delivery, causing only modest QTc prolongation and no directly attributable arrhythmic deaths.
Arrhythmic safety data from a large cohort of patients treated with HCQ alone or in combination with other QT-prolonging drugs.
Gasperetti et al., 9/24/2020, peer-reviewed, 23 authors.