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Could a dash of magnesium in epidurals help new moms avoid catheters?

NCT ID NCT06442995

Symptom relief Sponsor: CHU de Reims Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether adding magnesium sulfate to the standard epidural pain medicine (morphine) can reduce the chance of urinary retention after a C-section. About 1 in 3 women have trouble urinating after surgery, often needing a catheter. The trial will compare magnesium plus morphine against morphine alone in 290 women. If successful, it could offer a simple way to improve recovery and comfort.

What this could mean

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

Active substance
magnesium sulfate
What this could lead to
If it works, this could offer a simple, low-cost way to prevent urinary retention after C-section, reducing the need for catheters and improving recovery.
What could go wrong
This is a single-center Phase 4 trial with 290 participants, so results may not apply broadly. The benefit seen in a prior retrospective study may not hold up in this more rigorous test.

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 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 290 people

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

Started

Jan 2025

Expected to finish

Dec 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: * Patients who have undergone scheduled or emergency Caesarean section surgery under extended epidural anesthesia or combined epidural and spinal anesthesia at the Reims University Hospital. * Patients who have just undergone caesarean section and have the epidural catheter in place in the post-interventional monitoring room (SSPI). * Patients who agree to take part in the research and have signed the informed consent form * Patients of legal age * Patients affiliated to a social security scheme Exclusion Criteria: * Minor patients * Patients protected by law * Patients allergic to local anesthetics, morphine or magnesium sulfate * Patients with severe renal insufficiency (GFR \< 30 ml/min) * Patients with pre-pregnancy mictional disorders * Patients with an American Society of Anesthesiologists (ASA) score of 4 * Patients undergoing caesarean section under general anaesthesia, after failure of perimedullary anaesthesia * Patients with accidental intraoperative injury to the urinary tract * Patients who have received intravenous magnesium sulfate in the 24 hours preceding cesarean section

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Conditions

The condition(s) this trial relates to.

Urinary Retention

As listed by the trial registrant

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

Urinary retention

How to take part

Only the study team decides who joins. These are the ways to reach them.

  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.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Chu Reims

    RECRUITING

    Reims, 51092, France

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