NCT05037617

Brief Summary

This pilot project is a randomized controlled trial where induced patients receive an intervention of oxytocin discontinuation once in the active stage of labor (≥6 cm dilation). The intent is to reduce uterine hyperstimulation and fetal distress, therefore, lowering cesarean sections (CS) in first time mothers at term (≥ 37 weeks), with a cephalic presenting singleton fetus, without increasing maternal or neonatal morbidity. If REDUCE-I pilot trial suggests a safe reduction in CS rates and patient satisfaction, application for a multi-centre randomized controlled trial would follow.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
205

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2021

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 19, 2021

Completed
20 days until next milestone

First Posted

Study publicly available on registry

September 8, 2021

Completed
2 months until next milestone

Study Start

First participant enrolled

October 25, 2021

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 15, 2024

Completed
Last Updated

March 26, 2024

Status Verified

March 1, 2024

Enrollment Period

2.3 years

First QC Date

August 19, 2021

Last Update Submit

March 22, 2024

Conditions

Keywords

Obstetric Labor ComplicationsCesarean sectionInduced labouroxytocin

Outcome Measures

Primary Outcomes (3)

  • Rate of Cesarean section in labor

    Rate of Cesarean section in labor

    At Delivery

  • Occurrence of Uterine Hyperstimulation

    Occurrence of \>5 contractions in 10 minutes

    During labour, after >=6 cm dilation

  • Proportion of screened subjects who agree to enroll in the trial

    Proportion of screened subjects who agree to enroll in the trial

    During screening of potential participants

Secondary Outcomes (9)

  • Rate of perinatal death

    At delivery

  • Rate of neonatal asphyxia

    At delivery

  • Rate of moderate or severe asphyxia (Sarnat) or meets criteria for therapeutic cooling

    At delivery

  • Rate of neonatal sepsis or suspected sepsis

    At delivery

  • Rate of postpartum hemorrhage

    At delivery

  • +4 more secondary outcomes

Other Outcomes (2)

  • Duration of oxytocin discontinuation

    During labour, after >=6 cm dilation

  • Rate of reintroduction of oxytocin infusion

    During labour, after >=6 cm dilation

Study Arms (2)

Intervention site (Foothills Medical Centre): Continuation of Oxytocin

EXPERIMENTAL

Participants in this arm will receive a blinded vial of oxytocin once a patient is found to be \>= 6 cm dilated.

Drug: Continuation or discontinuation of oxytocin during the active first stage of labor (≥6 cm dilation).

Intervention site (Foothills Medical Centre): Discontinuation of oxytocin

PLACEBO COMPARATOR

Participants in this arm will receive a blinded vial of saline solution once a patient is found to be \>= 6 cm dilated.

Drug: Continuation or discontinuation of oxytocin during the active first stage of labor (≥6 cm dilation).

Interventions

At the intervention site (Foothills Medical Centre), for participants who consent to being part of the trial, once a patient is found to be \>= 6 cm dilation, the study medication will be initiated. Pharmacy will make up identical vials of oxytocin or saline, which will be numbered according to the random allocation sequence created by the study statistician. The intervention will be continued until delivery unless contractions decrease to less than 2 in 10 minutes or if no further cervical dilation is noted 4 hours after discontinuation.

Also known as: oxytocin
Intervention site (Foothills Medical Centre): Continuation of OxytocinIntervention site (Foothills Medical Centre): Discontinuation of oxytocin

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • pregnant women undergoing induction of labor with oxytocin.
  • Primiparous
  • years old or older
  • at term (≥37 weeks)
  • cephalic presenting
  • singleton fetus

You may not qualify if:

  • Multiple pregnancies
  • known fetal congenital or chromosomal anomalies

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Calgary

Calgary, Alberta, T2N 2T9, Canada

Location

MeSH Terms

Conditions

Obstetric Labor Complications

Interventions

DilatationOxytocin

Condition Hierarchy (Ancestors)

Pregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Intervention Hierarchy (Ancestors)

Investigative TechniquesPituitary Hormones, PosteriorPituitary HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and Proteins

Study Officials

  • Stephen L Wood, MD, FRCSC

    University of Calgary

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Once a patient is found to be ≥6 cm dilation, the study medication will be initiated. Pharmacy will make up identical vials of oxytocin or saline, which will be numbered according to the random allocation sequence created by the study statistician. Nurses will use the blinded vials for ongoing infusion. Patients and caregivers will be blinded.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Once a patient is found to be \>=6 cm dilation, the patient will received a blinded vial of oxytocin or saline, which will be numbered according to the random allocation sequence created by the study statistician.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 19, 2021

First Posted

September 8, 2021

Study Start

October 25, 2021

Primary Completion

February 15, 2024

Study Completion

February 15, 2024

Last Updated

March 26, 2024

Record last verified: 2024-03

Data Sharing

IPD Sharing
Will not share

Locations