Hydroxychloroquine for Early Treatment of Adults with Mild Covid-19: A Randomized-Controlled Trial

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
Oriol MitjaBCN PEP-CoV-2 RESEARCH GROUP

Abstract

No therapeutics have yet been proven effective for the treatment of mild-illness caused by SARS-CoV-2. We aimed to determine whether early treatment with hydroxychloroquine (HCQ) would be more efficacious than no-treatment for outpatients with mild Covid-19. We conducted a multicenter, open label, randomized controlled trial in Catalonia (Spain) between March 17, and May 26, 2020. Eligible Covid-19 cases were non-hospitalized adult patients with recently confirmed SARS-CoV-2 infection and less than five days of symptoms. Patients were assigned to receive HCQ (800 mg on day 1, followed by 400 mg once daily for 6 days) or no antiviral treatment (not-placebo controlled). Study outcomes were the reduction of viral RNA load in nasopharyngeal swabs up to 7 days after treatment start, patient disease progression using the WHO scale up to 28 days, and time to complete resolution of symptoms. Adverse events were assessed up to 28 days. A total of 293 patients were eligible for intention-to-treat analysis: 157 in the control arm and 136 in the intervention arm. The mean age was 41.6 years (SD 12.6), mean viral load at baseline was 7.90 (SD 1.82) Log10 copies/mL, and median time from symptom onset to randomization was 3 days. No significa...Continue Reading

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