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Could a simple pill let women start labor at home?

NCT ID NCT05177510

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Aug 19, 2026 · Updated 3 times

Summary

This study tests whether a pill called mifepristone can safely and effectively start labor in pregnant women so they can stay home longer instead of being admitted to the hospital right away. About 400 women with a full-term, single baby and an unready cervix will take either mifepristone or a placebo. The goal is to see if more women go into labor within two days, reducing hospital stays and improving the birth experience.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Mifepristone
What this could lead to
If it works, this could allow many women to start labor at home instead of in the hospital, making the process shorter and more comfortable.
What could go wrong
This is a mid-stage trial with 400 participants, so results are not yet proven. The drug may not work better than placebo, and there are always risks with any medication during pregnancy.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 400 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2023

Expected to finish

May 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

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  3. A doctor treating you

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Contacts and locations

Locations

  • Chelsea and Westminster Hospital

    RECRUITING

    London, United Kingdom

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