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Study identifier: NCT05681624 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Maternal Oxygen Supplementation for Intrauterine Resuscitation

Condition: Fetal Distress · Fetal Hypoxia · Labor and Delivery Complication  ·  Sponsor: Washington University School of Medicine

PhaseNA
Planned participants2124
Who can joinFemale, N/A to no upper limit
Healthy volunteersYes

About this study

More than 80% of the 3 million women who labor and deliver each year in the United States undergo continuous electronic fetal monitoring (EFM) during labor in order to fetal hypoxia and prevent the transition to acidemia, expedited operative delivery, and/or neonatal morbidity. Category II EFM is the most commonly observed group of fetal heart rate features in labor. One common response to Category II EFM is maternal oxygen (O2) supplementation. The theoretic rationale for O2 administration is that it increases O2 transfer to a hypoxic fetus. There are conflicting national guidelines regarding O2 administration - the American College of Obstetricians and Gynecologists suggest O2 is ineffective, whereas the Association of Women's Health, Obstetric, and Neonatal Nurses recommend continued use given lack of definitive data on safety and efficacy. A recent national survey of nearly 600 Labor \& Delivery providers in February 2022 revealed that 49% still use O2 . Thus, there remains equipoise on the topic and high-quality data on the safety of intrapartum O2 is needed. None of the trials to date have studied the effect of intrapartum O2 on important clinical measures of neonatal or maternal morbidity. This safety data is imperative because the field of obstetrics must hold supplemental O2 to the same rigorous standards applied to any drug used in pregnancy. Without data on these definitive outcomes, it will be challenging to implement evidence-based recommendations for supplementa…

This description comes directly from the study's public registry record.

Talk to the study team

Nandini Raghuraman, MD MSCI  ·  3142732939  ·  nraghuraman@wustl.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Barnes Jewish HospitalSt Louis, Missouri, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05681624