Mifepristone Outpatient Labour Induction (MOLI)

August 17, 2026 updated by: Chelsea and Westminster NHS Foundation Trust
The number of women having an induction of labour is increasing and is currently used in 33% of pregnancies for a range of medical reasons. The majority of women are admitted to hospital to have their labour induced, using methods which are protracted and associated with a poor birth experience, making them both costly and unpopular. Further, current methods of outpatient induction are unsuitable, unsafe and/or have a poor acceptability. The COVID-19 pandemic has driven a reduction in the number of face-to-face interactions taking place across all areas of medicine. Proving the efficacy and safety of Mifepristone would significantly reduce pre-labour admission rates and hospital length of stay for pregnant women, who are at particularly higher risk of COVID-19, and reduce delivery costs.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The study is a double blinded, two arms, multi-centre randomised controlled clinical trial to investigate the clinical effectiveness, safety and resource utilisation of intervention for the induction of labour in women admitted to the hospital. Subjects will be randomised 1:1 to one of the two arms to receive:

Arm 1: Mifepristone + standard of care Arm 2: Placebo + standard of care

The study treatment will commence from the administration of the Mifepristone or placebo. The participants will be assessed 2 days after treatment regimen will be completed as an in-patient.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
400

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

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

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United Kingdom
      • London, United Kingdom
        • Recruiting
        • Chelsea and Westminster Hospital
        • Contact:
          • Research Midwife
          • Phone Number: +442033152560

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Pregnant women between 36+5 and 41+5 weeks of gestation
  2. Singleton pregnancy
  3. Aged 18 years or older
  4. Unfavourable cervix (Bishop Score less than or equal to 6)
  5. The ability to understand and sign a written informed consent form, prior to participation in any screening procedures and must be willing to comply with all study requirements.

Exclusion Criteria:

  1. Breech presentation
  2. Early labour
  3. Contraindication to vaginal birth (placenta praevia, transverse lie, known or suspected cephalo-pelvic disproportion or other factor contraindicated to vaginal birth in the opinion of the investigator)
  4. Fetal growth restriction with oligohydramnios and/or abnormal Dopplers
  5. Presence of reduced fetal movements requiring urgent delivery, abnormal CTG or recent antepartum haemorrhage requiring immediate delivery

  6. Medical conditions:

    i. sexually transmitted infections (active infections only) ii. bleeding disorders, on anticoagulants, steroid or aspirin therapy iii. prior uterine operations (Caesarean Section or myomectomy)

  7. Contra-indications to mifepristone including chronic adrenal, hepatic, renal failure
  8. Hypersensitivity to mifepristone or to any excipients, or malnutrition
  9. Severe asthma uncontrolled by therapy and inherited porphyria
  10. Any investigational drug with an expected interaction with mifepristone which has been administered within 30 days prior to the trial drug administration.

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 Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Mifepristone and standard of care
Mifepristone 300mg once only and standard of care
Drug: Mifepristone
Progestin Antagonist
Placebo Comparator: Placebo
Placebo 300mg once only and standard of care
Drug: Placebo
Placebo

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Measure of women in labour or delivered within 2 days of intervention
Time Frame: up to 2 days after administration of intervention
To determine proportion of women who do not require an induction of labour within 2 days of intervention with mifepristone (superiority).
up to 2 days after administration of intervention

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Determine whether intervention reduces resource utilisation and patient experience
Time Frame: after delivery and up to 6 weeks after delivery
Patient reported outcomes will be collected following administration of questionnaires after delivery and up to 6 weeks after delivery
after delivery and up to 6 weeks after delivery
To assess the efficacy and safety of Mifepristone for the outpatient induction of labour
Time Frame: up to 6 weeks after delivery
Incidence and severity of adverse events in maternal and neonatal
up to 6 weeks after delivery
Change in clinical outcomes
Time Frame: up to 6 weeks after delivery
Occurrence of changes in clinical outcomes such as cervical ripening and interval to delivery.
up to 6 weeks after delivery

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Chelsea and Westminster NHS Foundation Trust

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Mark Johnson, Chelsea and Westminster NHS Foundation Trust
  • Study Director: Damon Foster, Chelsea and Westminster NHS Foundation Trust

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 25, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 31, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 31, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 17, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 15, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 4, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 18, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 17, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CW003
  • 2021-004860-93 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Research team wishes to enable any meta-analyses of such trials making appropriate requests. No plan to share IPD has been made at this time.

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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