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Status unknownNCT02872883Updated Nov 16, 2016

A Pilot RCT on the Management of Term Prelabour Rupture of Membranes

An interventional study of Expectant management and Minimal Vaginal examinations (only when necessary) in Prelabour Rupture of Membranes at Term, sponsored by University of Central Lancashire. Status unknown at 1 site in United Kingdom. Open to female participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-11-16.

Sponsored by University of Central Lancashire · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Nov 2016), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

This is a pilot study that will eventually result in a main randomised controlled trial that will look at what management is associated with a higher rate of normal birth and a lower rate of chorioamnionitis (maternal infection) when women break their waters but labour does not start. Spontaneous rupture of the membranes (when the waters break) at term (37-42 weeks gestation) is a physiological event that happens during labour. However, according to Gunn et al. (1970) in 8-10 % of the cases the membranes rupture before labour starts. The time between the rupture and the onset of labour is called latent phase and time wise is variable.

Studies have showed no statistically significant differences in terms of neonatal infection or chorioamnionitis when the investigators induce labour with prostaglandins compared to when labour starts spontaneously (Hannah et al 1996). Seaward et al. (1997) noted a number of confounding factors that might relate to the incidence of chorioamnionitis (maternal infection), the strongest predictor was having more than 8 vaginal examinations since the rupture of membranes and before delivery which was a stronger predictor than the duration of the latent phase. It is thought that by reducing the number of internal examinations, chorioamnionitis may be reduced, and hence neonatal infection may also be reduced. The main RCT will compare clinical outcomes and maternal satisfaction when women consent to be randomized to four groups: (1) Active management and routine internal examinations during labour, (2) Active management and reduced internal examinations, (3) Expectant management and routine internal examinations, (4) Expectant management and reduced internal examinations.

This application seeks ethics approval for the pilot phase to ensure that a definitive study can be undertaken appropriately. It is important to test that all the components work well individually and as a whole, to estimate sample size and ultimately to test the integrity of the research protocol before embarking on the main trial.

02

Conditions studied

  • Prelabour Rupture of Membranes at Term

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Keywords

  • Prelabour rupture of membranes
  • term pregnancy
  • management
  • vaginal examination
  • induction of labour
  • expectant management
03

In context

Rupture

557 studies on the registry are indexed under Rupture; 97 are open to participants now.

This study's planned enrollment of 120 is above the median of 72 across 334 interventional studies indexed under Rupture.

Browse Rupture studies →

Lead sponsor

University of Central Lancashire is the lead sponsor of 31 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Prelabour rupture of membranes (confirmed)
  • Term pregnancy - from 37+0 till 41+2 weeks gestation (both inclusive)
  • Normal/Low risk pregnancy
  • Singleton, cephalic pregnancy
  • No known current infectious diseases
  • Aged 18-45 years old
  • Understands English and is able to read and write in English
  • Agree for their placentas to be sent to histology if clinical signs of infection
  • Not taking part in other clinical research at present
  • Consent to take part

Exclusion criteria

Exclusion criteria:

  • Pregnancy of 36+6 or less or 41+3 or more weeks gestation
  • Breech or oblique presentation
  • Twin or multiple pregnancy
  • Previous caesarean section
  • Meconium stained liquor
  • Pre-eclampsia
  • Diabetes
  • Known to be colonised by Group B streptococcus
  • Current infections: HIV, Hepatitis B, Herpes
  • Doesn't give consent for the placenta to be sent to histology if clinical signs of infection
  • Not able to understand, read or write in English
  • Currently taking part in other clinical research
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Factorial assignment
Masking
None (open label)
Enrollment
120 participants (estimated)

Study arms

  • Experimental
    Expectant management and minimal vaginal examinations

    Expectant management up to approximately 96hours and vaginal examinations only when necessary during active labour

    Procedure: Expectant management · Procedure: Minimal Vaginal examinations (only when necessary)

  • Experimental
    Expectant management and routine vaginal examinations

    Expectant management up to approximately 96hours and routine vaginal examinations during active labour

    Procedure: Expectant management · Procedure: Routine vaginal examinations

  • Experimental
    Active management and minimal vaginal examinations

    Induction of labour at approximately 24hours and vaginal examinations only when necessary during active labour

    Procedure: Minimal Vaginal examinations (only when necessary) · Procedure: Active management

  • Active comparator
    Active management and routine vaginal examinations

    Induction of labour at approximately 24hours and routine vaginal examinations

    Procedure: Active management · Procedure: Routine vaginal examinations

Interventions

  • ProcedureExpectant management
  • ProcedureMinimal Vaginal examinations (only when necessary)
  • ProcedureActive management
  • ProcedureRoutine vaginal examinations
06

What researchers measure

Primary outcomes

  1. Percentage of eligible women who agree to take part in the study

    Time frame: 12 months during pilot stage

Secondary outcomes

  1. Percentage of participants who stay in the allocation arm

    Time frame: 12 months during pilot stage

  2. Percentage of participants who find the interventions acceptable

    Acceptability of the interventions to participants as measured by the study questionnaire

    Time frame: The questionnaire will be completed by the participants between 4-8 weeks after giving birth

07

Study locations

1 of 1 sites recruiting
  • Lancashire Teaching Hospitals NHS Trust
    Preston, Lancashire, United Kingdom
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 16, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02872883
Lead sponsor
University of Central Lancashire
Collaborators
Lancashire Care NHS Foundation Trust
Responsible party
Lucia Ramirez-Montesinos (Miss, University of Central Lancashire) — Principal investigator
First posted
Aug 19, 2016
Start date
Nov 2016
Primary completion
Oct 2017 (estimated)
Completion
Nov 2017 (estimated)
Last update
Nov 16, 2016

Study contacts

Lucia Ramirez-Montesinos, MSc BSc
Contact
Lramirez-montesinos@uclan.ac.uk
00447897236172
Lucia Ramirez-Montesinos, MSc BSc
principal investigator · University of Central Lancashire
Soo Downe, PhD MSc BSc
study director · University of Central Lancashire

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Nov 2016. You cannot join it, but the record below documents what was studied.

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