Carbetocin to prevent heavy bleeding after twin birth

Carbetocin Administration for the Prevention of Postpartum Hemorrhage in Twin Deliveries: A Randomized Controlled Trial

PHASE4 · Sheba Medical Center · NCT07401524

This trial tests whether a single dose of carbetocin given after the second twin is born reduces heavy bleeding compared with standard oxytocin in people delivering twins.

Quick facts

PhasePHASE4
Study typeInterventional
Enrollment120 (estimated)
Ages18 Years and up
SexFemale
SponsorSheba Medical Center (other gov)
Locations1 site (Ramat Gan)
Trial IDNCT07401524 on ClinicalTrials.gov

What this trial studies

This single-center, randomized phase 4 trial at Sheba Medical Center will assign pregnant people with twin pregnancies (≥23 weeks and age ≥18) in a 1:1 ratio to receive either prophylactic carbetocin or standard oxytocin after the second twin is delivered. Blood loss will be quantified by the drop in hemoglobin from before delivery to the day after delivery, and investigators will record safety outcomes such as need for additional uterotonics, transfusion, and adverse events. The trial includes both vaginal and cesarean twin deliveries and excludes higher-order multiples, placenta accreta, bleeding disorders, and intrauterine fetal death. The primary aim is to see if carbetocin lowers postpartum blood loss and is safe and practical compared with oxytocin.

Who should consider this trial

Good fit: Ideal candidates are pregnant individuals aged 18 or older with a twin pregnancy at or beyond 23 weeks who plan to deliver at Sheba Medical Center and have no contraindication to carbetocin or oxytocin.

Not a fit: Patients with known hypersensitivity to carbetocin/oxytocin, placenta accreta spectrum, bleeding disorders, hyponatremia that precludes oxytocin, intrauterine fetal death, higher-order multiples, or those planning delivery outside the participating hospital are unlikely to qualify or benefit.

Why it matters

Potential benefit: If successful, carbetocin could reduce postpartum blood loss in twin deliveries and lower rates of anemia, transfusion, and related complications.

How similar studies have performed: Previous randomized trials and meta-analyses have shown carbetocin reduces the need for additional uterotonics and transfusion, primarily after cesarean delivery, but randomized data specifically in twin pregnancies are limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pregnant individuals aged ≥18 years
* Twin pregnancies
* Gestational age ≥23 weeks

Exclusion Criteria:

* Known hypersensitivity or contraindication to carbetocin
* Higher-order multiple gestation (triplets or more)
* Maternal age \<18 years
* Known placenta accreta spectrum
* Known bleeding disorder
* Intrauterine fetal death of one or more fetuses
* Hyponatremia precluding oxytocin use
* Planned delivery at a non-participating hospital

Where this trial is running

Ramat Gan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Postpartum Hemorrhage, Twin Pregnancy, Carbetocin, Oxytocin, Twin Delivery

Last reviewed 2026-05-15 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.