Cervical Occlusion for the Prevention of Preterm Birth

NCT ID: NCT01737788

Last Updated: 2012-11-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

309 participants

Study Classification

INTERVENTIONAL

Study Start Date

2006-08-31

Study Completion Date

2011-08-31

Brief Summary

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The aim of this study was to evaluate the effect of cervical occlusion versus no cervical occlusion in women with cervical cerclages.

Detailed Description

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Cervical weakness and ascending infection have long been considered important causes of preterm birth. Cervical occlusion could theoretically be used for the treatment of cervical weakness and to protect the cervix against infection. A cervical cerclage could be placed to increase the cervical resistance, and occlusion of the external os could be performed to retain the cervical mucus plug thereby preventing infection. The aim of this multicentre, stratified, randomised controlled trial was to evaluate the effect of cervical occlusion versus no cervical occlusion in women with prophylactic and therapeutic cervical cerclages.

Conditions

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Uterine Cervical Incompetence

Keywords

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Cervical cerclage Uterine Cervical Incompetence

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Therapeutic Trial

Therapeutic cervical cerclage with or without cervical occlusion in women presenting with short cervix (\<25mm)

Group Type EXPERIMENTAL

Cervical occlusion

Intervention Type PROCEDURE

Women were randomized to receive cervical occlusion or no cervical occlusion in addition to a cervical cerclage (McDonald or Shirodkar cerclage). Cervical occlusion was performed with interrupted or continuous sutures, placed approximately 1 cm deep on each lip, and 0.5 cm apart with a nylon 2-0/3-0 suture.

Prophylactic Trial

Prophylactic cervical cerclage with or without cervical occlusion in women with a history of cervical insufficiency

Group Type EXPERIMENTAL

Cervical occlusion

Intervention Type PROCEDURE

Women were randomized to receive cervical occlusion or no cervical occlusion in addition to a cervical cerclage (McDonald or Shirodkar cerclage). Cervical occlusion was performed with interrupted or continuous sutures, placed approximately 1 cm deep on each lip, and 0.5 cm apart with a nylon 2-0/3-0 suture.

Interventions

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Cervical occlusion

Women were randomized to receive cervical occlusion or no cervical occlusion in addition to a cervical cerclage (McDonald or Shirodkar cerclage). Cervical occlusion was performed with interrupted or continuous sutures, placed approximately 1 cm deep on each lip, and 0.5 cm apart with a nylon 2-0/3-0 suture.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* The physician in charge considered that a cerclage was indicated.
* Gestational age between 12 and 27 completed weeks.
* Previous late mid-trimester miscarriage, or spontaneous preterm labour and delivery before 28 weeks with or without previous cerclages.
* Previous cerclage because of short cervix.
* Confirmed gestational age defined as gestational age estimated by ultrasound at less than or equal to 22+0 weeks, and/or certain last menstrual period.
* Vaginal infection treated before cerclage.
* Ability to read and understand the relevant national language.
* Consent obtained in accordance with specifications of the local research ethics committee.
* 18 years or more of age and legally competent.

Exclusion Criteria

* Demonstrated cervical infection.
* Obstetrical complications in the current pregnancy.
* Multiple pregnancies.
* History of a significant abruptio placenta in a previous pregnancy.
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Niels Jørgen Secher

OTHER

Sponsor Role lead

Responsible Party

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Niels Jørgen Secher

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Niels J Secher, Professor

Role: PRINCIPAL_INVESTIGATOR

Department of Obstetrics and Gynecology, Hvidovre University Hospital, Denmark

Locations

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Adelaide, South Australia, Australia

Site Status

Odense, Funen, Denmark

Site Status

Aalborg, Jutland, Denmark

Site Status

Aarhus, Jutland, Denmark

Site Status

Horsens, Jutland, Denmark

Site Status

Kolding, Jutland, Denmark

Site Status

Viborg, Jutland, Denmark

Site Status

Copenhagen, Region Sjælland, Denmark

Site Status

Gentofte, Copenhagen, Region Sjælland, Denmark

Site Status

Glostrup, Copenhagen, Region Sjælland, Denmark

Site Status

Herlev, Copenhagen, Region Sjælland, Denmark

Site Status

Hillerød, Region Sjælland, Denmark

Site Status

Holbæk, Region Sjælland, Denmark

Site Status

Department of Obstetrics and Gynecology, Hvidovre University Hospital, Denmark

Hvidovre, Region Sjælland, Denmark

Site Status

Roskilde, Region Sjælland, Denmark

Site Status

New Delhi, New Delhi, India

Site Status

Mecca, Mecca Region, Saudi Arabia

Site Status

Pretoria, Gauteng, South Africa

Site Status

Barcelona, Catalonia, Spain

Site Status

Malmo, Skåne County, Sweden

Site Status

Basel, Canton of Basel-City, Switzerland

Site Status

Liverpool, Lancashire, United Kingdom

Site Status

London, London, United Kingdom

Site Status

Countries

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Australia Denmark India Saudi Arabia South Africa Spain Sweden Switzerland United Kingdom

References

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Brix N, Secher NJ, McCormack CD, Helmig RB, Hein M, Weber T, Mittal S, Kurdi W, Palacio M, Henriksen TB; CERVO group. Randomised trial of cervical cerclage, with and without occlusion, for the prevention of preterm birth in women suspected for cervical insufficiency. BJOG. 2013 Apr;120(5):613-20. doi: 10.1111/1471-0528.12119. Epub 2013 Jan 18.

Reference Type DERIVED
PMID: 23331924 (View on PubMed)

Other Identifiers

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CervOcc-001

Identifier Type: -

Identifier Source: org_study_id