Clinical trial Recruiting at 1 site Interventional Ages 18 to 50 Women only

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 typeInterventional
Ages18 Years to 50 Years
SexWomen only
Enrollment40 (estimated)
SponsorSamuel Lunenfeld Research Institute, Mount Sinai Hospital
Academic / other
Locations1 site (Toronto, Ontario)
StatusRecruiting
StartedAugust 17, 2022
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedApril 6, 2026
Trial IDNCT05290129 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.