Determining the best oxytocin dose for cesarean delivery
Official title: Oxytocin Maintenance Infusion in Labouring Women Undergoing Cesarean Delivery: an Up-down Sequential Allocation Study
Run by Samuel Lunenfeld Research Institute, Mount Sinai Hospital · NCT05290129 · Data updated 2026-11-12
This study is testing the lowest amount of oxytocin needed to help women having a cesarean delivery have better uterine contractions and reduce bleeding after childbirth.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 50 Years |
| Sex | Women only |
| Enrollment | 40 (estimated) |
| Sponsor | Samuel Lunenfeld Research Institute, Mount Sinai Hospital Academic / other |
| Locations | 1 site (Toronto, Ontario) |
| Status | Recruiting |
| Started | August 17, 2022 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | April 6, 2026 |
| Trial ID | NCT05290129 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include laboring women who are undergoing cesarean delivery under neuraxial anesthesia and have had prior exposure to oxytocin.
✕Probably not a fit
Patients who have contraindications for neuraxial anesthesia or a history of severe cardiac disease may 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 study aims to find the minimal effective dose of oxytocin infusion needed for laboring women undergoing cesarean delivery to ensure optimal uterine contraction and minimize postpartum hemorrhage. It employs a prospective, double-blinded design where the infusion dose is adjusted based on the previous patient's response. The goal is to establish the dose that achieves adequate uterine tone in 90% of patients. The study will be conducted at Mount Sinai Hospital in Toronto, Ontario.
Why it matters
Potential benefit: If successful, this study could significantly reduce the risk of postpartum hemorrhage in women undergoing cesarean delivery.
How similar studies have gone: Other studies have explored oxytocin dosing in similar contexts, but this specific up-down sequential allocation approach is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: • All patients with induced or augmented labour undergoing cesarean delivery under neuraxial anesthesia (at least 3 hours of prior exposure to oxytocin during labour) Exclusion Criteria: * All patients who refuse to give written informed consent * All patients who declare allergy or hypersensitivity to oxytocin * A history of hypertension and/or severe cardiac disease(s) * All patients who have contraindications for neuraxial anesthesia * All patients who will be converted to general anesthesia intraoperatively * All patients with placenta previa and multiple gestation
Where it's running
-
Mount Sinai Hospital
Toronto, Ontario, Canada Recruiting
Study contacts
- Principal investigator: Mrinalini Balki, MD — Mount Sinai Hospital
- Study coordinator: Mrinalini Balki, MD
- Email: mrinalini.balki@uhn.ca
- Phone: 416-586-4800
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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.