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Arm position matters for vein visibility on ultrasound

NCT ID NCT01647815

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nīmes 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 50 healthy adults to see if changing arm position makes veins in the armpit and collarbone area show up bigger on ultrasound. The goal was to find the best arm position for easier and safer vein access. Results help guide doctors when placing central lines.

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

50 people

The number who actually took part.

Start date

Aug 2012

Finished

Aug 2012

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 50 years

Sex

Anyone

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: * The volunteer must have given his/her informed and signed consent * The volunteer must be insured or beneficiary of a health insurance plan * The volunteer is 18 to 50 years old Exclusion Criteria: * The volunteer is participating in another study * The volunteer is in an exclusion period determined by a previous study * The volunteer is under judicial protection, under tutorship or curatorship * The volunteer refuses to sign the consent * It is impossible to correctly inform the volunteer * The volunteer is pregnant, parturient, or breastfeeding * The volunteer has a contraindication for the exams in this study * Volunteer with a history of trauma or surgery in the axilla or the shoulder girdle * Volunteer with a known history of venous thrombosis in the axillary and / or subclavian veins

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As listed by the trial registrant

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

Healthy volunteers

Contacts and locations

Locations

  • CHU de Nîmes - Hôpital Universitaire Carémeau

    Nîmes, 30029, France

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