Carbetocin at Cesarean Delivery for Labor Arrest

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-11-30

Study Completion Date

2013-04-30

Brief Summary

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In 2009, the Society of Obstetricians and Gynecologists Canada, which produces national clinical guidelines on important women's health issues, recommended that a bolus of carbetocin 100 mcg into your vein should be used at elective cesarean delivery instead of oxytocin infusion for the prevention of bleeding after you deliver your baby. Similar to oxytocin, carbetocin has side effects that are dose-related. Although 100 mcg has been the recommend dose, studies in nonlaboring women suggest that doses lower than 100 mcg may be used to achieve the same degree of uterine contractility with less side effects. So far, the ideal dose to be used in cesarean sections for labouring women who have failure to progress in labour (failure of your cervix to dilate adequately to 10cm or the baby's head not descending the birth canal) has not been determined. This study is designed to determine the minimum carbetocin dose required during cesarean delivery for 'failure to progress' to achieve the best effect.

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Detailed Description

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Post-partum hemorrhage (PPH) is a major cause of maternal death worldwide. Oxytocin is the most common uterotonic drug used to prevent and treat PPH in North America, however, there are some limitations to its use. Oxytocin has a very short duration of action, which requires a continuous infusion to achieve sustained uterotonic activity. The Society of Obstetricians and Gynecologists of Canada (SOGC) has recently recommended a single 100mcg dose of carbetocin at elective Cesarean delivery to promote uterine contraction and prevent post partum hemorrhage (PPH), in lieu of the more traditional oxytocin regimens. Carbetocin lasts 4 to 7 times longer than oxytocin, with a similar side effect profile and apparent greater efficacy rate.

The evidence reported for Carbetocin use in the literature has mostly been based upon low risk non-laboring patients undergoing elective cesarean deliveries. At present, only 2 studies have looked at the use of Carbetocin in low risk patients requiring emergency cesarean deliveries. The minimum effective dose (ED90) of carbetocin in laboring women has not been determined so far. Similar to oxytocin, the ED90 of Carbetocin is likely to be higher in laboring women undergoing Cesarean deliveries as compared to the non-laboring women, due to the effect of the desensitization phenomenon.

This study will be conducted as a prospective, randomized, up-down sequential allocation trial. The success or fail of a patient in the study will determine the dose given to future patients. Dosage will be increased for patients following a failed case, and kept the same for patients following successful cases. Following a successful case, there is also a 1 in 9 chance that the dose will be decreased for the next patient.

The results of this study will establish the minimum effective dose of carbetocin for uterine contraction at cesarean delivery for labor arrest. This will likely minimize unnecessary side effects caused by a large bolus dose of the drug, and improve quality and safety of patient care.

Conditions

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Postpartum Hemorrhage

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Carbetocin 10mcg

Carbetocin 10mcg IV, once following delivery.

Group Type ACTIVE_COMPARATOR