In each nirmatrelvir–ritonavir group, the percentage of participants ... equation with compound symmetry variance–covariance structure was used to account for clustering.

Meaningful reduction in symptoms seen for some taking an extended course outside of the context of an acute infection. HealthDay News — Extended-course nirmatrelvir/ritonavir yields a meaningful ...

Nirmatrelvir-ritonavir was beneficial for COVID-19 management in patients with chronic kidney disease or kidney failure, significantly reducing the risk of mortality and hospital admission.