-100% -50% 0% 50% 100% Timeline of COVID-19 HCQ studies (pooled effects) 2020 2021 2022 2023 FavorsHCQ Favorscontrol c19hcq.org October 2023 March 2020: efficacy (pooled outcomes) March 2020: efficacy (specific outcome) June 2020: efficacy (RCT pooled) April 2021: efficacy (RCT specific)