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Investigational Drugs and Biologics
No drugs or biologics have been proven to be effective for the prevention or treatment of COVID-19. Numerous antiviral agents, immunotherapies, and vaccines are being investigated and developed as potential therapies. Searching for effective therapies for COVID-19 infection is a complex process. Gordon et al identified 332 high-confidence SARS-CoV-2 human protein-protein interactions. Among these, they identified 66 human proteins or host factors targeted by 69 existing FDA-approved drugs, drugs in clinical trials, and/or preclinical compounds. As of March 22, 2020, these researchers are in the process of evaluating the potential efficacy of these drugs in live SARS-CoV-2 infection assays. 
McCreary and Pogue’s “Review of Early and Emerging Options” for COVID-19 treatment provides a comprehensive review of potential beneficial therapies and adjunctive treatments.