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

Obstet Gynecol. 2024 Feb 1;143(2):273-276. doi: 10.1097/AOG.0000000000005471. Epub 2023 Nov 14.

Abstract

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. The cohorts were comparable, including high rates of vaccination in both groups. Nirmatrelvir-ritonavir was well-tolerated, with no patients discontinuing medication due to side effects. There were no intensive care unit admissions in either group. Most obstetric and medical outcomes were similar between those taking and not taking nirmatrelvir-ritonavir. Patients taking nirmatrelvir-ritonavir had significantly higher rates of surgical site infection (3 [2.7%] vs 0 [0%], P =.02) and preeclampsia (11 [9.6%] vs 12 [3.7%], P =.02). Outcome event numbers were too small for multivariable modeling. These preliminary data may be reassuring to clinicians and patients who would like to use nirmatrelvir-ritonavir in pregnancy.

MeSH terms

  • Antiviral Agents* / therapeutic use
  • COVID-19 Drug Treatment
  • COVID-19* / diagnosis
  • Cytochrome P-450 CYP3A Inhibitors
  • Female
  • Humans
  • Lactams*
  • Leucine*
  • Nitriles*
  • Pregnancy
  • Pregnancy Complications, Infectious / drug therapy
  • Pregnancy Complications, Infectious / virology
  • Proline*
  • Retrospective Studies
  • Ritonavir* / therapeutic use
  • SARS-CoV-2
  • Treatment Outcome

Substances

  • Antiviral Agents
  • Lactams
  • Leucine
  • nirmatrelvir
  • Nitriles
  • Proline
  • Ritonavir
  • Cytochrome P-450 CYP3A Inhibitors