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New study uses ultrasound to uncover hidden nerve changes in diabetic patients with carpal tunnel

NCT ID NCT06933511

Knowledge-focused Sponsor: Ankara Etlik City Hospital 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 completed observational study looked at 84 people to understand how diabetic polyneuropathy (nerve damage from diabetes) changes the median nerve in patients with carpal tunnel syndrome. Researchers used advanced ultrasound techniques, including shear wave elastography and microvascular imaging, to measure nerve stiffness, size, and blood flow. They also assessed hand function and symptoms using a standard questionnaire. The goal was to see how diabetes and carpal tunnel together affect the nerve and hand function.

What this could mean

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

What this could lead to
If successful, this could help doctors better understand how diabetes-related nerve damage affects carpal tunnel syndrome, potentially improving diagnosis and treatment planning.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly lead to new therapies. The results may not apply to all patients with these conditions.

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.

Participants

84 people

The number who actually took part.

Started

Apr 2025

Finished

Nov 2025

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will include non-diabetic individuals, diabetic individuals with diabetic polyneuropathy (DPN), and diabetic individuals without diabetic polyneuropathy. Participants will be selected based on clinical presentation of hand symptoms such as pain, numbness, tingling, burning, and weakness, and each participant will be assessed for the presence or absence of carpal tunnel syndrome (CTS). Participants from both the diabetic and non-diabetic populations will be included in the study, with both CTS and non-CTS subgroups in each population.

Ages

18 to 78 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: Patient Group: * Presence of carpal tunnel syndrome (CTS) symptoms, including pain, numbness, tingling, burning, and weakness, which worsen during sleep, prolonged hand positions, or repetitive wrist movements, and improve with hand shaking or changing position. * Cognitively able to understand and participate in the study. * Aged between 18 and 78 years. * Has given written informed consent to participate. Control Group: * Asymptomatic individuals, with or without diabetes. * Cognitively able to understand and participate in the study. * Aged between 18 and 78 years. * Has given written informed consent to participate. Exclusion Criteria: * History of previous carpal tunnel surgery or injection. * History of previous upper extremity trauma. * Presence of mass lesions or any condition that compresses the median nerve, observed during ultrasonographic examination. * Presence of a persistent median artery. * Presence of a bifid or trifid median nerve. * Presence of anastomoses, such as Martin-Gruber. * History of long-term excessive alcohol consumption. * Chronic renal failure. * Presence of neuropathy due to a neurological condition. * Thyroid disorders. * History of malignancy. * History of neurotoxic drug use. * Peripheral arterial occlusive disease. * Severe diabetic polyneuropathy (DPN) diagnosis. * Pregnancy. * Cervical radiculopathy or brachial plexopathy. * Osteoarthritis of the hand. * Rheumatologic disease. * Systemic autoimmune disease. * History of cerebrovascular disease. * Dupuytren's contracture. * Sclerodactyly. * Cognitive limitations that would prevent understanding the study protocol.

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Conditions

The condition(s) this trial relates to.

carpal tunnel syndrome diabetic neuropathy diabetic polyneuropathy median nerve neuropathy

As listed by the trial registrant

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

Carpal tunnel syndrome (CTS) Diabetic polyneuropathy Hand function Median nerve Shear wave elastography Ultrasound

Contacts and locations

Locations

  • Ankara Etlik City Hospital

    Ankara, Turkey (Türkiye)

More trials for these conditions

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