Activity Restriction for Women With Arrested Preterm Labor

August 21, 2021 updated by: Gabriele Saccone, Federico II University

Activity Restriction for Women With Arrested Preterm Labor: a Randomized Controlled Trial

to test the hypothesis that activity restriction in women with singleton gestations and with arrested PTL would reduce the rate of PTB.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Preterm birth (PTB) is a major cause of perinatal morbidity and mortality. Worldwide, about 15 million babies are born too soon every year, causing 1.1 million deaths, as well as short- and long-term disability in countless survivors.

Preterm labor (PTL) is the final pathway for about 50% of all PTB. Tocolytic agents are drugs that can slow or stop labor contractions in the attempt to delay births preceded by PTL. Primary tocolysis is defined as tocolysis given on initial presentation of women with PTL. In most of these women, PTL stops, but as their risk of PTB remains high, some have advocated use of maintenance tocolysis, i.e. tocolysis after arrested PTL. So far, no maintenance tocolytic agent has been shown to be beneficial in preventing PTB.

Some authors have also advocated the use of activity restriction in women with arrested PTL to reduce the risk of PTB. Activity restriction is defined as the following forms of activity restriction: pelvic rest and prohibition of sexual activity, reduction of work and/or non work activity. So far, the benefit of activity restriction in women with arrested PTL is still subject of debate and no Randomized Controlled Trial (RCT) has been undertaken.

Thus, the aim of this trial is to test the hypothesis that activity restriction in women with singleton gestations and with arrested PTL would reduce the rate of PTB.

Study Type

Interventional

Enrollment (Anticipated)

120

Phase

  • Not Applicable

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

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 to 50 years (ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

  • singleton gestations;
  • arrested PTL;
  • TVU CL < 25 mm;
  • 18 years to 50 years.

Exclusion Criteria:

  • multiple gestations;
  • symptoms of PTL (not arrested PTL);
  • TVU CL ≥ 25mm;
  • premature rupture of amnion and chorion membranes (PROM) at the time of randomization;
  • cerclage in situ at the time of randomization;
  • pessary in situ at the time of randomization;
  • vaginal bleeding at the time of randomization;
  • women who are unconscious, severly ill, mentally handicapped;
  • women under the age of 18 years or over the age of 50 years.

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

  • Primary Purpose: PREVENTION
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Activity restriction
Women in the intervention group will be recommended activity restriction. Activity restriction is defined as the following forms of activity restriction: pelvic rest and prohibition of sexual activity, reduction of work and/or non work activity. Bed rest will not recommended.
Women in the intervention group will be recommended activity restriction. Activity restriction is defined as the following forms of activity restriction: pelvic rest and prohibition of sexual activity, reduction of work and/or non work activity. Bed rest will not recommended.
NO_INTERVENTION: No activity restriction
Women in the control group will not receive any reccomandation regarding activity restriction. Bed rest and abstain from sexual intercourse will also not recommended.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Preterm birth
Time Frame: 37 weeks of gestation
Preterm delivery at less than 37 weeks of gestation
37 weeks of gestation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean gestational age at delivery in weeks
Time Frame: At the time of delivery
Mean gestational age at delivery in weeks
At the time of delivery
Mean latency
Time Frame: from randomization to delivery
from randomization to delivery
from randomization to delivery
admission to nicu
Time Frame: at the time of delivery until 28 days of life
number of babies admitted to neonatal intensive care unit
at the time of delivery until 28 days of life
neonatal death
Time Frame: at the time of delivery until 28 days of life
death of a live-born baby
at the time of delivery until 28 days of life
a composite of adverse perinatal outcome
Time Frame: at the time of delivery until 28 days of life

defined as at least one of the following:

  • necrotizing enterocolitis (NEC);
  • intraventricular hemorrhage (IVH) grade 3 or higher;
  • respiratory distress syndrome (RDS);
  • bronchopulmonry dysplasia (BPD);
  • retinopathy of prematurity (ROP) requiring therapy;
  • blood-culture proven sepsis;
  • admission to neonatal intensive care unit (NICU);
  • neonatal death;
at the time of delivery until 28 days of life
chorioamnionitis
Time Frame: at the time of delivery
diagnosis of choriamnionitis at histological examination of the placenta.
at the time of delivery

Collaborators and Investigators

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

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)

November 25, 2019

Primary Completion (ANTICIPATED)

September 1, 2021

Study Completion (ANTICIPATED)

October 1, 2021

Study Registration Dates

First Submitted

April 10, 2018

First Submitted That Met QC Criteria

April 10, 2018

First Posted (ACTUAL)

April 18, 2018

Study Record Updates

Last Update Posted (ACTUAL)

August 24, 2021

Last Update Submitted That Met QC Criteria

August 21, 2021

Last Verified

August 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • 29/18

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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