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Breathing gas may ease pain of cancer procedures

NCT ID NCT00646945

Symptom relief Sponsor: Air Liquide Santé International 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tested whether a gas mixture called Kalinox (50% nitrous oxide and 50% oxygen) can reduce pain during short invasive procedures in adults with cancer, such as spinal taps or bone biopsies. The trial involved 204 participants and compared Kalinox to a placebo gas (oxygen/nitrogen mix). The main goal was to measure pain using a visual scale and to check for side effects.

What this could mean

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

Active substance
Kalinox (50% nitrous oxide / 50% oxygen gas mixture)
What this could lead to
If it works, this could provide a simple, fast-acting pain relief option for cancer patients undergoing short, painful procedures.
What could go wrong
This is a completed phase 4 trial, so results are already known. The gas may cause side effects like nausea or dizziness, and it may not work better than standard pain relief or a placebo.

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

204 people

The number who actually took part.

Start date

Sep 2007

Finished

Oct 2008

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

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

Anyone

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: * Age \> 18 year * OMS between 0 to 3 * Patient who has to undergo an invasive gesture or a painful care * Absence of contra-indication to the administration of the product Exclusion Criteria: * Patient already included in another incompatible study with this protocol * Patient incapable of self-assessment by the EVA * Confusional syndrome * OMS \> 3 * Patient already included in this protocol * Exclusion criteria linked to the product

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Conditions

The condition(s) this trial relates to.

cancer neoplasm Pain

As listed by the trial registrant

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

Cancer Pain

Contacts and locations

Locations

  • Centre Alexis Vautrin

    Vandœuvre-lès-Nancy, 54 500, France

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