Comparison of lopinavir/ritonavir plus hydroxychloroquine vs. lopinavir/ritonavir plus hydroxychloroquine plus levamisole pill plus budesonide plus formoterol inhaler in patients with nonsevere COVID-19 pneumonia. Partly blinded RCT (NCT04331470, not yet recruiting). Primary endpoint: (a) clear CT scan at 3–7 days; (b) negative RT-PCR at 3–7 days.