Overview A Study of Hydroxycholoroquine Compared to Placebo as Treatment for People With COVID-19 Status: Withdrawn Trial end date: 2020-09-25 Target enrollment: Participant gender: Summary This study is being done to see if hydroxychloroquine is an effective treatment for COVID-19. Phase: Phase 2 Details Lead Sponsor: Memorial Sloan Kettering Cancer CenterTreatments: Hydroxychloroquine