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Cold therapy could take the ouch out of blood tests

NCT ID NCT07408011

Symptom relief Sponsor: University Hospital, Brest 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests if applying cold (cryotherapy) to the wrist before a blood draw from the artery can reduce pain. It involves 258 adults with chronic respiratory diseases who need this test. The goal is to find a simple, drug-free way to make the procedure less painful.

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.

Participants

About 258 people

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

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Nov 2029

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

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: * Patient with a respiratory condition requiring arterial blood gas sampling via radial puncture * Patients able to assess their pain using a numerical rating scale * Patients reporting a pain score of 0 on the numerical scale at the wrist prior to sampling * Patients with no contraindications or allergies to local anesthetics such as lidocaine/prilocaine * Patients aged 18 years or older * Patients affiliated with or benefiting from a social security scheme * Patients able to give consent and who have signed an informed consent form Exclusion Criteria: * Patients reporting a pain score \>0 on the numerical rating scale before sampling * Emergency context requiring immediate arterial blood gas results * Patients for whom radial arterial puncture is not feasible * Known hypersensitivity to local amide-type anesthetics or any component of the lidocaine/prilocaine cream * Pregnant or breastfeeding women * Refusal to participate * Patients under legal guardianship or conservatorship

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Conditions

The condition(s) this trial relates to.

Pain respiratory system disorder

As listed by the trial registrant

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

Chronic respiratory diseases

How to take part

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

  1. The places running it

    2 sites. 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

  • CH Morlaix

    Morlaix, Finistere, 29672, France

  • CHU Brest

    Brest, Finistere, 29200, France

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