Prolonged viral shedding is commonly observed in immunocompromised patients infected by SARS-CoV-2. Until now, there is no successful clinical trial or guideline to guide optimal treatment for this clinical condition. Here, we aimed to establish a clinical trial with combination of prolonged remdesivir infusion with nirmatrelvir/ritonavir among COVID-19 patients recently receiving b-cell depletion therapy, to evaluate to clinical outcomes.