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Clin Microbiol Infect ; 29(1): 85-93, 2023 Jan.
Article de Anglais | MEDLINE | ID: mdl-35940567

RÉSUMÉ

OBJECTIVES: To assess the effect of hydroxychloroquine (HCQ) and Tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) as pre-exposure prophylaxis on COVID-19 risk. METHODS: EPICOS is a double-blind, placebo-controlled randomized trial conducted in Spain, Bolivia, and Venezuela. Healthcare workers with negative SARS-CoV-2 IgM/IgG test were randomly assigned to the following: daily TDF/FTC plus HCQ for 12 weeks, TDF/FTC plus HCQ placebo, HCQ plus TDF/FTC placebo, and TDF/FTC placebo plus HCQ placebo. Randomization was performed in groups of four. Primary outcome was laboratory-confirmed, symptomatic COVID-19. We also studied any (symptomatic or asymptomatic) COVID-19. We compared group-specific 14-week risks via differences and ratios with 95% CIs. RESULTS: Of 1002 individuals screened, 926 (92.4%) were eligible and there were 14 cases of symptomatic COVID-19: 220 were assigned to the TDF/FTC plus HCQ group (3 cases), 231 to the TDF/FTC placebo plus HCQ group (3 cases), 233 to the TDF/FTC plus HCQ placebo group (3 cases), and 223 to the double placebo group (5 cases). Compared with the double placebo group, 14-week risk ratios (95% CI) of symptomatic COVID-19 were 0.39 (0.00-1.98) for TDF + HCQ, 0.34 (0.00-2.06) for TDF, and 0.49 (0.00-2.29) for HCQ. Corresponding risk ratios of any COVID-19 were 0.51 (0.21-1.00) for TDF + HCQ, 0.81 (0.44-1.49) for TDF, and 0.73 (0.41-1.38) for HCQ. Adverse events were generally mild. DISCUSSION: The target sample size was not met. Our findings are compatible with both benefit and harm of pre-exposure prophylaxis with TDF/FTC and HCQ, alone or in combination, compared with placebo.


Sujet(s)
Agents antiVIH , COVID-19 , Infections à VIH , Phosphonates , Prophylaxie pré-exposition , Humains , Ténofovir/usage thérapeutique , Emtricitabine/usage thérapeutique , Hydroxychloroquine/effets indésirables , Agents antiVIH/usage thérapeutique , Infections à VIH/traitement médicamenteux , Infections à VIH/prévention et contrôle , Adénine , Phosphonates/effets indésirables , Désoxycytidine/effets indésirables , COVID-19/prévention et contrôle , Traitements médicamenteux de la COVID-19 , SARS-CoV-2 , Personnel de santé , Méthode en double aveugle
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