Rebound Phenomenon after Nirmatrelvir/Ritonavir Treatment of Coronavirus Disease-2019 in High-Risk Persons.
Nischal RanganathJohn C O'HoroDouglas W ChallenerSidna M Tulledge-ScheitelMarsha L PikeR Michael O'BrienRaymund R RazonableAditya S ShahPublished in: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America (2022)
In a cohort of 483 high-risk patients treated with nirmatrelvir/ritonavir for coronavirus disease-2019, two patients (0.4%) required hospitalization by day 30. Four patients (0.8%) experienced rebound of symptoms, which were generally mild, at median of 9 days after treatment, and all resolved without additional COVID-19-directed therapy.