Assessing small nerve fiber activity in carpal tunnel syndrome patients through sensory testing

Small Nerve Fiber Activity in Patients with Carpal Tunnel Syndrome Assessed Via Quantitative Sensory Testing

NA · Brooke Army Medical Center · NCT06550284

This study is testing how physical therapy affects small nerve fibers in people with carpal tunnel syndrome to see if it improves their symptoms and nerve function.

Quick facts

PhaseNA
Study typeInterventional
Enrollment48 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorBrooke Army Medical Center (fed)
Locations1 site (San Antonio, Texas)
Trial IDNCT06550284 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate changes in small nerve fiber function in patients with carpal tunnel syndrome (CTS) following a standard course of physical therapy. It will utilize quantitative sensory testing (QST) to measure the activity of A-beta, A-delta, and C-fibers before and after treatment. The study will also explore the relationship between these changes and patient-reported outcomes, as well as compare nerve function between affected and unaffected wrists. By focusing on small nerve fibers, the study seeks to provide a more comprehensive understanding of CTS beyond traditional electrodiagnostic methods.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18-65 with a clinical diagnosis of carpal tunnel syndrome and specific positive clinical tests.

Not a fit: Patients with conditions such as radiculopathy, bilateral CTS, or those who have had recent upper extremity trauma or surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for patients with carpal tunnel syndrome by providing insights into small nerve fiber involvement.

How similar studies have performed: Previous studies have shown that quantitative sensory testing can effectively assess small nerve fiber changes in carpal tunnel syndrome, indicating that this approach has been successful in related research.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

DEERS eligible Age 18-65 Pain and paresthesia in the median nerve distribution A positive Phalen test A positive Tinel test over the carpal tunnel Willing to attend physical therapy

Exclusion Criteria:

Nerve root signs consistent with a radiculopathy Suspected radial and ulnar nerve involvement based on monofilament testing Bilateral CTS Previous hand surgery Injections in the upper quarter in the last 6 months Cervical, shoulder, or UE trauma in the last 6 months Currently pregnant or postpartum within the last 6 months No more than minimal care (evaluation and patient education, 1 visit) for the current episode

Where this trial is running

San Antonio, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Carpal Tunnel Syndrome, carpal tunnel syndrome, quantitative sensory testing, median nerve, neuropathy, small nerve fiber

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.