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Carpal Tunnel Syndrome (CTS)CTS-PDNCT07433166

Ultrasound Evaluation in Carpal Tunnel Syndrome

An observational study of Carpal Tunnel Syndrome (CTS), run by SB Istanbul Education and Research Hospital.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Official record
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Trial summary

This prospective cohort study aims to evaluate median nerve cross-sectional area and intraneural vascularity using power Doppler ultrasonography in patients with carpal tunnel syndrome. Ultrasonographic findings will be compared between diabetic and non-diabetic patients. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Carpal Tunnel Syndrome (CTS)
What is being tested?
Doppler ultrasound
How many people
100 participants
Where
No sites listed yet
Study dates
May 2026to Jan 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Carpal Tunnel Syndrome Patients

Who may be able to join

  • clinically and electrophysiologically confirmed carpal tunnel syndrome
  • symptom duration > 3 months
  • written informed consent

Who cannot join

  • previous wrist surgery
  • cervical radiculopathy
  • inflammatory arthritis
  • pregnancy

About this study

Official title: Prospective Evaluation of Median Nerve Cross-Sectionall Area and Power Doppler Signal Changes in Patients With Carpal Tunnel Syndrome

This prospective cohort study aims to evaluate median nerve cross-sectional area and intraneural vascularity using power Doppler ultrasonography in patients with carpal tunnel syndrome. Ultrasonographic findings will be compared between diabetic and non-diabetic patients. Clinical severity and electrophysiological findings will be correlated with ultrasonographic parameters.

Being tested
Doppler ultrasound
Keywords
carpal tunnel, ultrasound, power doppler
Medical subject headings
Carpal Tunnel Syndrome, Median Neuropathy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Doppler ultrasoundDiagnostic test

    The predictive power of cross-sectional area and intraneural blood flow measured by ultrasound on surgical outcomes will be tested.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Intraneural Vascularity

    Intraneural blood flow will be evaluated using power Doppler ultrasonography at the level of the carpal tunnel inlet. The presence and degree of intraneural vascularity will be graded using a semi-quantitative scoring system:

    0 = No detectable intraneural flow

    1. = Single vessel signal
    2. = Multiple vessel signals
    3. = Marked hypervascularity

    The total score ranges from 0 to 3. Higher scores indicate increased intraneural vascularity.

    Measured: Baseline

  2. Cross sectional Area

    The cross-sectional area of the median nerve will be measured using ultrasonography at the level of the pisiform bone (carpal tunnel inlet) and proximal to transvers carpal ligament. Measurements will be obtained by tracing the inner border of the hyperechoic epineurium.

    Values will be recorded in square millimeters (mm²). Higher values indicate greater nerve swelling.

    Measured: baseline

Secondary outcomes (1)
  1. Boston Carpal Tunnel Questionnaire

    Change in Symptom Severity Score of the Boston Carpal Tunnel Questionnaire The Boston Carpal Tunnel Questionnaire is a patient-reported outcome measure consisting of 11 questions assessing symptom severity. Each item is scored from 1 (no symptoms) to 5 (most severe symptoms). The total score ranges from 11 to 55. Higher scores indicate worse symptom severity.

    Measured: Baseline, 3th and 6th months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Feb 2026
  2. Study startMay 2026 (estimated)
  3. Primary completionDec 2026 (estimated)
  4. Study completionJan 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07433166
Sponsor's protocol ID
CTS-PD-DM-2026
Acronym
CTS-PD
Status last verified
Feb 2026
First submitted
19 Feb 2026
Last updated
9 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Data sharing is not planned due to patient confidentially and instutional policy

Publications

  • Erickson M, Lawrence M, Lucado A. The role of diagnostic ultrasound in the examination of carpal tunnel syndrome: an update and systematic review. J Hand Ther. 2022 Apr-Jun;35(2):215-225. doi: 10.1016/j.jht.2021.04.014. Epub 2021 Apr 14.

    PubMed 34261588

Questions about this trial

What is this clinical trial studying?

An observational study of Carpal Tunnel Syndrome (CTS), run by SB Istanbul Education and Research Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 9 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Intraneural Vascularity (time frame: Baseline). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07433166, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Apr 2026; AzTrials last refreshed its copy on 7 Nov 2026.

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