U.S., Dec. 4 -- ClinicalTrials.gov registry received information related to the study (NCT07261085) titled 'A Study to Learn How Paxlovid [Nirmatrelvir-ritonavir/PF-07321332] Works in COVID-19 Patients Who Are Elderly or Have Medical Conditions.' on Nov. 21.

Brief Summary: The purpose of this study is to learn about the effects of the study medicine called Paxlovid [nirmatrelvir-ritonavir/PF-07321332], for the potential treatment of COVID-19.

This study will use patient health records in Ontario, to find people who were sick with COVID-19 and visited a pharmacist to be treated, anytime from December 1st, 2022, to March 31st, 2024. To be included in our study, the people must be over 18 years of age and be registered in the Ontario health ...