Investigating the use of oxytocin during the second stage of labor
Official title: Role of Oxytocin in the Second Stage of Labor: a Randomized Controlled Trial (The ROSSoL Trial)
Run by Washington University School of Medicine · NCT04303702 · Data updated 2026-11-12
This study is testing if continuing oxytocin during the pushing stage of labor helps first-time moms have better delivery outcomes or if it could cause unnecessary risks.
Quick facts
| Study type | Interventional |
|---|---|
| Sex | Women only |
| Enrollment | 400 (estimated) |
| Sponsor | Washington University School of Medicine Academic / other |
| Locations | 1 site (St Louis, Missouri) |
| Status | Recruiting |
| Started | July 1, 2022 |
| Main results expected | June 1, 2027 |
| Study ends | September 30, 2027 |
| Registry record updated | January 5, 2026 |
| Trial ID | NCT04303702 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are nulliparous pregnant women at or beyond 37 weeks of gestation who are in labor.
✕Probably not a fit
Patients with multiple gestations, major fetal anomalies, or those who are not on oxytocin at the time of complete cervical dilation will not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized controlled trial examines the effects of continuing oxytocin administration during the second stage of labor in nulliparous women. While oxytocin is commonly used to enhance uterine contractions during the first stage of labor, its benefits and risks during the second stage remain unclear. The study aims to determine whether continuing oxytocin can improve delivery outcomes or if it poses unnecessary risks. Participants will be randomly assigned to either continue or discontinue oxytocin after reaching complete cervical dilation.
Why it matters
Potential benefit: If successful, this study could provide evidence to guide the safe use of oxytocin in labor, potentially improving maternal and neonatal outcomes.
How similar studies have gone: Previous studies have shown mixed results regarding the benefits of oxytocin in labor, making this investigation both relevant and necessary.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Nulliparous pregnant women \>/= 37 weeks gestation * Singleton pregnancies * Admission for induction of labor or spontaneous labor Exclusion Criteria: * Multiple gestations * Multiparous patients * Patients with major fetal anomalies * Not on oxytocin at the time of complete cervical dilation * Patients with fetal head visible at the perineum on diagnosis of complete cervical dilation * Maternal medical condition that prohibits prolonged second stage
Where it's running
-
Barnes Jewish Hospital
St Louis, Missouri, United States Recruiting
Study contacts
- Study coordinator: Nandini Raghuraman, MD MSCI
- Email: nraghuraman@wustl.edu
- Phone: 9186917389
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.