Impact of Maternal BMI on Plasma Levels of Oxytocin During Labor Augmentation

February 19, 2021 updated by: Marie Blomberg, Linkoeping University
The aim of this study is to examine the associations between maternal BMI and levels of oxytocin in maternal plasma during augmentation with oxytocin during first stage of labor in term pregnancy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

A translational prospective experimental study in the delivery ward in Linköping. The study population will include women in two BMI groups (underweight/normal weight and overweight/obese) during first stage of labor with singleton full term pregnancy and cephalic presentation.The BMI is calculated from weight and height registered at the first antenatal visit around week 8-12. At the delivery ward, if the women are in need of labor augmentation with oxytocin infusion, a peripheral venous catheter will be placed in the contralateral arm from the arm where oxytocin will be administrated. The oxytocin infusion will be prepared to a concentration of 10 mU/ml and will be given according to a standardized protocol or to an infusion level giving maximum of 5 uterine contractions per 10 minutes. Blood samples for measuring plasma levels of oxytocin will be taken prior to start and before every increase in the rate of oxytocin infusion. The blood samples will be collected through the first stage of labor.

Study Type

Observational

Enrollment (Actual)

40

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Sweden
      • Linköping, Sweden, 58185
        • Department of Obstetrics

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Full-term pregnancy (from gestational week 37+0), singel pregnancy, vertex presentation, knowledge in the Swedish language, 18 years and older, known BMI, need of labor augmentation with oxytocin infusion during opening stage.

Description

Inclusion Criteria:

Full-term pregnancy (from gestational week 37+0), singel pregnancy, vertex presentation, knowledge in the Swedish language, 18 years and older, known BMI, need of labor augmentation with oxytocin infusion during opening stage.

Exclusion Criteria:

Not participating in other studies at the delivery ward

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
BMI, oxytocin
Repeteadly blood samples will be taken
Other: blood samples
blood samples will be taken repeatedly

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
maternal BMI, were weight and height will be combined to report BMI in kg/m^2
Time Frame: eight hours
mass spectrometry
eight hours
level of oxytocin in plasma during oxytocin infusion
Time Frame: eight hours
mass spectrometry
eight hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Linkoeping University

Investigators

  • Principal Investigator: Marie Blomberg, PhD, Linkoeping University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 1, 2019

Primary Completion (Actual)

December 1, 2019

Study Completion (Actual)

August 1, 2020

Study Registration Dates

First Submitted

September 14, 2019

First Submitted That Met QC Criteria

September 17, 2019

First Posted (Actual)

September 18, 2019

Study Record Updates

Last Update Posted (Actual)

February 21, 2021

Last Update Submitted That Met QC Criteria

February 19, 2021

Last Verified

February 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 110930ingo

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

IPD will not be shared with other researchers

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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