In April 2021, Eli Lilly voluntarily asked the FDA to revoke the Emergency Use Authorization for the monoclonal antibody bamlanivimab due to reduced susceptibility in vitro to SARS-CoV-2 variants, not for safety. In this work, authors carry out a placebo-controlled phase 2 evaluation of bamlanivimab in non-hospitalized adults with COVID-19, to determine safety and efficacy.