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Laughing gas vs. oxygen for easier labor induction

NCT ID NCT06498908

Symptom relief Sponsor: Jefferson Drapkin 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 18, 2026 · Updated 2 times

Summary

This study was designed to see if giving nitrous oxide (laughing gas) helps pregnant women feel less pain when a balloon is placed to start labor. It planned to compare nitrous oxide with plain oxygen. However, the study was withdrawn before any participants were enrolled, so no results are available.

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 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Started

Mar 2026

Finished

Mar 2026

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 to 45 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 admitted to labor and delivery for induction of labor (term inductions, medically indicated preterm inductions). * Pregnant patients who are eligible for intracervical balloon placement. Exclusion Criteria: * Pregnant patients with contraindications to receiving nitrous oxide. * Inability to safely self-administer nitrous oxide * Allergy to nitrous oxide * History of malignant hyperthermia, * Concomitant administration of magnesium sulfate * Less than 35 weeks gestational age * Non-reassuring fetal heart tracing * Use of intravenous or intramuscular opioid within 4 hours * Vitamin B12 deficiency * Gas-trapping conditions such as pneumothorax or small bowel obstruction * Patients requesting neuraxial anesthesia * Non-English speaking patients.

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Conditions

The condition(s) this trial relates to.

Labor Pain thalidomide embryopathy

As listed by the trial registrant

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

Induced; birth Labor pain

Contacts and locations

Locations

  • Maimonides Medical Center OB/GYN

    Brooklyn, New York, 11220, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.