Oral Nirmatrelvir-Ritonavir Use and Clinical Outcomes in Pregnant Patients With Coronavirus Disease 2019 (COVID-19).

We conducted a retrospective cohort study of pregnant patients who tested positive for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection by RNA polymerase chain reaction test or home test who were counseled about taking nirmatrelvir-ritonavir if they were within 5 days of symptom onset. Obstetric and coronavirus disease 2019 (COVID-19) outcomes were compared between patients who did and did not take the medication. Overall, 114 individuals took nirmatrelvir-ritonavir and 323 did not.