Rate of enrollment too slow to allow completion in a reasonable timeframe

Primary Objective:

To assess the effect of hydroxychloroquine versus placebo on nasopharyngeal SARS-CoV-2 viral load in outpatient adults with COVID-19

Secondary Objectives:

• To assess the effect of hydroxychloroquine versus placebo on clinical signs and symptoms and progression of disease in outpatient adults with COVID-19
• To assess the safety and tolerability of hydroxychloroquine in outpatient adults with COVID-19

The duration of the study per participant will be around 18 days (1 or 2 days of screening followed by a 10-day treatment period and a 4 to 6 days follow-up period)

Inclusion criteria :

• Participants with diagnosis of COVID-19 via an approved or authorized molecular test
• Presence of symptoms compatible with COVID-19 at the time of screening
• Time between onset of symptoms and first dose of hydroxychloroquine or placebo is 96 hours or less
• Female participants must use an acceptable birth control method, as specified by each site and country

Exclusion criteria:

• COVID-19 disease requiring the use of supplemental oxygen
• Electrocardiogram (ECG) tracing with QTc interval > 450 ms for men, > 470 ms for women (Fridericia algorithm recommended)
• Bradycardia (< 50 beats/min)
• History of cardiac disease (eg. congestive heart failure, myocardial infarction)
• History of Glucose-6-phosphate dehydrogenase (G6PD) deficiency
• Women who are pregnant or breastfeeding
• Concurrent antimicrobial therapy
• Known hypersensitivity to hydroxychloroquine or other 4-aminoquinoline compounds
• Hydroxychloroquine use within 2 months before enrollment
• History of severe skin reactions such as Sevens-Johnson syndrome and toxic epidermal necrolysis
• History of retinopathy
• History of arrythmia, concurrent use of anti-arrhythmic drugs, or family history of sudden cardiac death
• History of severe renal disease (treatment with dialysis or phosphate binders) or hepatic impairment

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org