Comparing carbetocin and oxytocin to prevent postpartum bleeding after cesarean delivery
Official title: Comparative Efficacy of Carbetocin and Oxytocin in Parturients at Risk of Atonic Postpartum Hemorrhage Undergoing Elective Cesarean Delivery: a Randomized Controlled Trial
Run by Samuel Lunenfeld Research Institute, Mount Sinai Hospital · NCT06333340 · Data updated 2026-11-12
This study is testing whether carbetocin works better than oxytocin to prevent heavy bleeding after a cesarean delivery in women who are at higher risk for this complication.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 50 Years |
| Sex | Women only |
| Enrollment | 160 (estimated) |
| Sponsor | Samuel Lunenfeld Research Institute, Mount Sinai Hospital Academic / other |
| Locations | 1 site (Toronto, Ontario) |
| Status | Recruiting |
| Started | January 14, 2025 |
| Main results expected | December 2026 |
| Study ends | December 2026 |
| Registry record updated | April 1, 2026 |
| Trial ID | NCT06333340 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are pregnant women undergoing elective cesarean delivery who have one or more risk factors for postpartum hemorrhage.
✕Probably not a fit
Patients with conditions such as heart disease, bleeding disorders, or allergies to the study medications 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 compare the effectiveness of two medications, carbetocin and oxytocin, in preventing postpartum hemorrhage (PPH) in women undergoing elective cesarean delivery who are at increased risk for this complication. The trial focuses on patients with risk factors such as multiple gestation, large baby, and obesity, among others. By administering these medications, the study seeks to determine which is more effective in reducing the incidence of PPH. The hypothesis is that carbetocin will outperform oxytocin in this high-risk population.
Why it matters
Potential benefit: If successful, this study could lead to improved prevention strategies for postpartum hemorrhage, potentially saving lives and reducing maternal morbidity.
How similar studies have gone: Other studies have suggested that carbetocin may be more effective than oxytocin in preventing postpartum hemorrhage, indicating a promising approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion criteria - Any one or more of the risk factors for uterine atony: * Overdistended uterus due to: * Polyhydramnios (amniotic fluid index \>24 cm) * Fetal macrosomia reported on prenatal ultrasound \>90th centile or \> 4000 gm * Multiple gestation * History of uterine atony/PPH (documented with blood loss of \>1000 ml, blood transfusion, use surgical methods such as Bakri balloon, B-Lynch sutures, uterine artery ligation or embolization) * Obesity with body mass index (BMI) \>40 kg/m2 * Diabetes mellitus on treatment * Preeclampsia on treatment * Placenta previa Exclusion criteria: * Valvular heart disease, arrhythmias, or heart failure * Placenta accreta spectrum * Bleeding disorder * Anemia (\<100 g/dl) * Allergy or sensitivity to oxytocin or carbetocin
Where it's running
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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
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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-
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Investigating how oxytocin works during cesarean deliveries
This study is testing how oxytocin works during scheduled cesarean deliveries to see if it helps prevent complications like uterine atony in new mothers.
-
Using Tranexamic Acid to Prevent Postpartum Hemorrhage
This study is testing if Tranexamic Acid can help prevent heavy bleeding after childbirth in women having cesarean sections or vaginal deliveries.
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Pre-eclampsia risk in pregnancies after oocyte donation
We will follow pregnant women who used donated eggs and women who used their own eggs to see if pregnancies after oocyte donation lead to a higher risk of pre-eclampsia.
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.