We used a simulation-based model of viral transmission to test the impact of different intervention measures for the control of COVID-19. The use of an antiviral drug, in combination with contact tracing, quarantine and isolation, results in a significant decrease of the mean final size and the peak incidence of local outbreaks of COVID-19, provided delays in contact tracing are small. Integrating antiviral drugs together with contact tracing and quarantine is predicted through this model to be an effective tool for the control of local outbreaks of COVID-19. https://www.medrxiv.org/content/10.1101/2020.03.19.20038182v1