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New ultrasound method may reduce failed epidurals in labor

NCT ID NCT05897814

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested whether M-mode ultrasound can accurately show where an epidural catheter is placed in women during labor. Researchers enrolled 100 women and used ultrasound to look for a specific sign when pain medicine was injected. The goal is to reduce the 27-32% failure rate of epidurals.

What this could mean

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

Active substance
M-mode and color Doppler ultrasonography
What this could lead to
If successful, this could improve how doctors confirm epidural placement, potentially reducing failed pain relief during labor.
What could go wrong
This is a small, completed study with no phase, so results may not apply widely. The technique may not work better than current methods.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

100 people

The number who actually took part.

Started

Sep 2023

Finished

May 2024

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: * Adult women admitted to the delivery room for a vaginal delivery with an epidural analgesia. * Written informed consent. * French speaking patient. Exclusion Criteria: * Patient with a contraindication to neuraxial analgesia. * Visual Analogue Scale score \>7 at epidural analgesia pose. * No health insurance.

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As listed by the trial registrant

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

Epidural analgesia for labour and delivery

Contacts and locations

Locations

  • Hôpital Necker-Enfants Malades

    Paris, 75015, France

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