Oxytocin And Uterotonic Agent Use For Cesarean Delivery - Study Results

Study Type:	Interventional
Study Design:	Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Participant, Care Provider, Investigator, Outcomes Assessor; Primary Purpose: Treatment
Conditions:	Uterine Atony Hypotension
Interventions:	Drug: Oxytocin Infusion Drug: Oxytocin Bolus

Participant Flow

Recruitment Details

Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
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Pre-Assignment Details

Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
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Reporting Groups

	Description
Standard Care Group	"Standard Care Group" (reflects current clinical regimen at BWH) will receive a 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request. The obstetrician and anesthesiologist will be asked to consider this infusion "oxytocin". If inadequate uterine tone exists in which the obstetrician desires alternative uterotonic agents, these will be provided on their request (e.g. methylergonovine maleate (methergine) 0.2 mg IM (Intramuscular) or carboprost tromethamine (hemabate) 0.25 mg IM. The time of the requests will be recorded. If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally. Oxytocin: 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request.
Protocol Group	"Protocol Group" will receive 3 mL syringes marked "study solution-oxytocin" which contain 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale). If inadequate uterine tone is noted at 9 min, the 1 mL syringe marked marked "study solution-9 min", containing methylergonovine maleate (methergine) 0.2mg, will be given IM (Intramuscular). If inadequate uterine tone is noted at 12 min, the 1 mL syringe marked marked "study solution-12 min", containing carboprost tromethamine (hemabate) 0.25 mg, will be given IM. If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally. Oxytocin: 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).

Description

Standard Care Group

"Standard Care Group" (reflects current clinical regimen at BWH) will receive a 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request. The obstetrician and anesthesiologist will be asked to consider this infusion "oxytocin". If inadequate uterine tone exists in which the obstetrician desires alternative uterotonic agents, these will be provided on their request (e.g. methylergonovine maleate (methergine) 0.2 mg IM (Intramuscular) or carboprost tromethamine (hemabate) 0.25 mg IM. The time of the requests will be recorded.

If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally.

Oxytocin: 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request.

Protocol Group

"Protocol Group" will receive 3 mL syringes marked "study solution-oxytocin" which contain 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).

If inadequate uterine tone is noted at 9 min, the 1 mL syringe marked marked "study solution-9 min", containing methylergonovine maleate (methergine) 0.2mg, will be given IM (Intramuscular).

If inadequate uterine tone is noted at 12 min, the 1 mL syringe marked marked "study solution-12 min", containing carboprost tromethamine (hemabate) 0.25 mg, will be given IM.

If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally.

Oxytocin: 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).

Participant Flow: Overall Study

	Standard Care Group	Protocol Group
STARTED	30	30
COMPLETED	30	30
NOT COMPLETED	0	0

Baseline Characteristics

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Population Description

Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
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Reporting Groups

	Description
Standard Care Group	"Standard Care Group" (reflects current clinical regimen at BWH) will receive a 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request. The obstetrician and anesthesiologist will be asked to consider this infusion "oxytocin". If inadequate uterine tone exists in which the obstetrician desires alternative uterotonic agents, these will be provided on their request (e.g. methylergonovine maleate (methergine) 0.2 mg IM or carboprost tromethamine (hemabate) 0.25 mg IM. The time of the requests will be recorded. If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally. Oxytocin: 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request.
Protocol Group	"Protocol Group" will receive 3 mL syringes marked "study solution-oxytocin" which contain 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale). If inadequate uterine tone is noted at 9 min, the 1 mL syringe marked marked "study solution-9 min", containing methylergonovine maleate (methergine) 0.2mg, will be given IM. If inadequate uterine tone is noted at 12 min, the 1 mL syringe marked marked "study solution-12 min", containing carboprost tromethamine (hemabate) 0.25 mg, will be given IM. If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally. Oxytocin: 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).
Total	Total of all reporting groups

Description

Standard Care Group

"Standard Care Group" (reflects current clinical regimen at BWH) will receive a 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request. The obstetrician and anesthesiologist will be asked to consider this infusion "oxytocin". If inadequate uterine tone exists in which the obstetrician desires alternative uterotonic agents, these will be provided on their request (e.g. methylergonovine maleate (methergine) 0.2 mg IM or carboprost tromethamine (hemabate) 0.25 mg IM. The time of the requests will be recorded.

If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally.

Oxytocin: 500 mL bag of oxytocin (30 IU/500 mL) to be connected to the IV, and controlled per obstetrician request.

Protocol Group

"Protocol Group" will receive 3 mL syringes marked "study solution-oxytocin" which contain 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).

If inadequate uterine tone is noted at 9 min, the 1 mL syringe marked marked "study solution-9 min", containing methylergonovine maleate (methergine) 0.2mg, will be given IM.

If inadequate uterine tone is noted at 12 min, the 1 mL syringe marked marked "study solution-12 min", containing carboprost tromethamine (hemabate) 0.25 mg, will be given IM.

If uterine tone remains inadequate at 15 min, misoprostol 600 mcg will be given buccally.

Oxytocin: 3 IU oxytocin and be given IV at time of baby delivery (Time 0). Up to two additional syringes can be given at 3 and 6 mins until uterine tone adequate (as per obstetrician on graded scale).

Total

Total of all reporting groups

Baseline Measures

	Standard Care Group	Protocol Group	Total
Overall Participants Analyzed [Units: Participants]	30	30	60

Age, Customized [Units: Participants] Count of Participants
Between 18 and 40 years of age	30	30	60

Sex: Female, Male [Units: Participants] Count of Participants
Female	30 100.0%	30 100.0%	60 100.0%
Male	0 0.0%	0 0.0%	0 0.0%

Race (NIH/OMB) [Units: Participants] Count of Participants
American Indian or Alaska Native	0 0.0%	0 0.0%	0 0.0%
Asian	4 13.3%	4 13.3%	8 13.3%
Native Hawaiian or Other Pacific Islander	0 0.0%	0 0.0%	0 0.0%
Black or African American	6 20.0%	4 13.3%	10 16.7%
White	20 66.7%	22 73.3%	42 70.0%
More than one race	0 0.0%	0 0.0%	0 0.0%
Unknown or Not Reported	0 0.0%	0 0.0%	0 0.0%

Region of Enrollment [Units: Participants]
United States	30	30	60

Outcome Measures

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1. Primary:

1. Amount of Oxytocin to Obtain Satisfactory Uterine Tone. [ Time Frame: Up to 15 min from time of infant delivery ]

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2. Secondary:

Side Effects (Hypotension, Flushing, Nausea and Emesis) Associated With Uterotonic Drug Use [ Time Frame: Up to 15 min from time of infant delivery ]

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Serious Adverse Events

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Other Adverse Events

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Limitations and Caveats

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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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More Information

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Certain Agreements:

All Principal Investigators ARE employed by the organization sponsoring the study.

Results Point of Contact:

Name/Title: Lawrence Tsen, MD
Organization: Brigham and Women's Hospital
phone: 617-732-8216
e-mail: ltsen@partners.org

Responsible Party:	Lawrence Ching Tsen, Brigham and Women's Hospital
ClinicalTrials.gov Identifier:	NCT01549223 History of Changes
Other Study ID Numbers:	2010-P-002284
Study First Received:	March 3, 2012
Results First Received:	February 24, 2017
Last Updated:	June 27, 2017