Ultrasound Comparison of the Surface of the Subclavian and the Axillary Vein Versus the Surface of the Subclavian Vein (AnatoAbord)

November 17, 2025 updated by: Centre Hospitalier Universitaire de Nīmes

Ultrasound Comparison of the Surface of the Subclavian Vein (Arm in Abduction (90°) and External Rotation (90 °)) and the Surface of the Axillary Vein (Arms Along the Body) Versus the Surface of the Subclavian Vein (Arm Along the Body)

The main objective of this study is the demonstration of an increase of over 50% of the surface visible on ultrasound (mm2) of the axillary vein and subclavian vein in arm abduction (90 °) and external rotation (90 °) with respect to the surface of the subclavian vein along the arm body.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The secondary objective of this study is to investigate the anatomical relationships of these veins with the subclavian artery, the brachial plexus and the pleura, and assess the depth of the vein to the skin. Specifically, the following will be assessed:

  • the depth of the vein (mm)
  • the length of the minor axis (mm)
  • the length of the major axis (mm)
  • artery-vein distance (mm)
  • vein-pleural distance (mm)
  • the distance of the brachial plexus (mm)

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Nîmes, France, 30029
        • CHU de Nîmes - Hopital Universitaire Caremeau

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 50 years (Adult)

Accepts Healthy Volunteers

Yes

Description

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: 50 healthy volunteers
The study population consists of healthy volunteers aged 18 to 50 years and without previous surgery, trauma, or thrombosis of the axilla or the shoulder girdle.
Procedure: Ultrasound measures
Ultrasound will be used to measure the surfaces of the axillary and subclavian veins with the arms in different positions. Our goal is to compare the vein surface area available among different vein-position combinations. Our goal does not include testing specific devices.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
vein surface (mm^2), subclavian vein with arm along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
vein surface (mm^2), subclavian vein with arm in abduction and external rotation
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
vein surface (mm^2), axillary vein with arm along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Vein depth (mm), subclavian vein with arms along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of minor axis (mm), subclavian vein with arms along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of major axis (mm), subclavian vein with arms along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Artery-vein distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm along side the body.
baseline (transversal); Day 0
Artery-vein distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm along side the body.

Artery-vein distance is displayed in the section plane? = yes
baseline (transversal); Day 0
The vein-pleura distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm along side the body.
baseline (transversal); Day 0
Vein-pleura distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm along side the body.

The vein-pleura distance is displayed in the section plane? = yes
baseline (transversal); Day 0
The distance to the brachial plexus is visualized in the sectional plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm along side the body.
baseline (transversal); Day 0
Distance to brachial plexus (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm along side the body.

The distance of the brachial plexus is visualized in the sectional plane? = yes
baseline (transversal); Day 0
Vein depth (mm), subclavian vein with arm in abduction and external rotation
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of minor axis (mm), subclavian vein with arm in abduction and external rotation
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of major axis (mm), subclavian vein with arm in abduction and external rotation
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Vein depth (mm), axillary vein with arm along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of minor axis (mm), axillary vein with arm along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Length of major axis (mm), axillary vein with arm along side the body
Time Frame: baseline (transversal); Day 0
baseline (transversal); Day 0
Artery-vein distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm in abduction and external rotation.
baseline (transversal); Day 0
Artery-vein distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm in abduction and external rotation.

Artery-vein distance is displayed in the section plane? = yes
baseline (transversal); Day 0
The vein-pleura distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm in abduction and external rotation.
baseline (transversal); Day 0
The distance to the brachial plexus is visualized in the sectional plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of subclavian vein with arm in abduction and external rotation.
baseline (transversal); Day 0
Vein-pleura distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm in abduction and external rotation.

The vein-pleura distance is displayed in the section plane? = yes
baseline (transversal); Day 0
Distance to brachial plexus (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of subclavian vein with arm in abduction and external rotation.

The distance of the brachial plexus is visualized in the sectional plane? = yes
baseline (transversal); Day 0
Artery-vein distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of axillary vein with arm along side the body.
baseline (transversal); Day 0
Artery-vein distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of axillary vein with arm along side the body.

Artery-vein distance is displayed in the section plane? = yes
baseline (transversal); Day 0
The vein-pleura distance is displayed in the section plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of axillary vein with arm along side the body.
baseline (transversal); Day 0
Vein-pleura distance (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of axillary vein with arm along side the body.

The vein-pleura distance is displayed in the section plane? = yes
baseline (transversal); Day 0
Distance to brachial plexus (mm)
Time Frame: baseline (transversal); Day 0

Ultrasound of axillary vein with arm along side the body.

The distance of the brachial plexus is visualized in the sectional plane? = yes
baseline (transversal); Day 0
The distance to the brachial plexus is visualized in the sectional plane? yes/no
Time Frame: baseline (transversal); Day 0
Ultrasound of axillary vein with arm along side the body.
baseline (transversal); Day 0

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Centre Hospitalier Universitaire de Nīmes

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Pascal Jeannes, MD, Centre Hospitalier Universitaire de Nîmes

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
August 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 10, 2012

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 10, 2012

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 17, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 19, 2012

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 24, 2012

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 19, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 17, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2015

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • LOCAL/2012/PJ-02
  • 2012-A00624-39 (Other Identifier: ANSM)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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