Overview Tele-health Enabled Clinical Trial for COVID-19 Status: Terminated Trial end date: 2021-06-01 Target enrollment: Participant gender: Summary To determine the efficacy of high dose Vitamin D (an over-the-counter nutritional supplement) in preventing immune-related complications in outpatients with confirmed SARS-CoV-2 infection. Phase: Phase 1/Phase 2 Details Lead Sponsor: University Hospitals Cleveland Medical CenterCollaborator: Northwestern UniversityTreatments: CholecalciferolVitamin D