ClinicalTrials.gg
RecruitingNCT07825155Updated Sep 23, 2026

Ultrasound-Guided Injection of Carpal Tunnel Syndrome Using Hyaluronic Acid vs Corticosteroid vs Glucose 5%

An Early Phase 1 interventional study of Hyaluronic Acid- corticosteroid- 5% glucose in Carpal Tunnel Syndrome (CTS), sponsored by Tanta University. Recruiting at 1 site in Egypt. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-09-23.

Sponsored by Tanta University · Early Phase 1, Interventional, and Treatment

From the registry’s dates

  • Registered 5 months after the study started (first participant enrolled Mar 2026, registered Sep 2026).
  • Started Mar 2026; still recruiting 7 months later.

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Phase
Early Phase 1
Study type
Interventional
Enrollment
60
Allocation
Non-randomized
Ages
18 Years to 70 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-14

Among 64 studies in Carpal Tunnel Syndrome with a site in Egypt — 21 open to participants now, 23 under way, 1 of them phase 3. Carpal Tunnel Syndrome · Egypt.

Planned enrollment
21st of 53
60 · median 60
Started
2026
with 5 others
Phase 1
4 of 64
1 open now
Primary completion
2026-06
later than 17 of 22 live
Registered
64th of 64
by date
Lead sponsor
4 of 64
Tanta University

Among the 64 studies in Carpal Tunnel Syndrome with a site in Egypt, this one is the 21st largest by planned enrollment of the 53 interventional ones that give a count, is one of 6 that started in 2026, is one of 4 in phase 1, reaches primary completion later than 17 of the 22 other live ones, and was the 64th registered.

Carpal Tunnel Syndrome

589 studies on the registry are indexed under Carpal Tunnel Syndrome; 134 are open to participants now.

Browse Carpal Tunnel Syndrome studies →

Open to participants now

21 of the 64 studies in Carpal Tunnel Syndrome with a site in Egypt are open now. Recruiting first, the newest first:

15 more — sign in →

All 21 open studies →

A study can be open while its sites in Egypt have not opened yet or have stopped. Only those recruiting at a site in Egypt →

Who these studies take

Of the 73 Carpal Tunnel Syndrome studies recruiting now, 27 (37%) set no upper age limit and 37 (51%) stop at 75 or younger; 1 takes children under 18; 10 take healthy volunteers.

This study: 18 Years to 70 Years · all sexes · no healthy volunteers.

The full table on the hub →

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 64 studies in Carpal Tunnel Syndrome with a site in Egypt, or all of them as a file.
02

Study summary

Carpal tunnel syndrome (CTS) is a common peripheral nerve entrapment disorder caused by compression of the median nerve at the wrist. This study is a comparative study designed to evaluate the efficacy of three ultrasound-guided injection treatments for patients with mild to moderate CTS: hyaluronic acid (HA), corticosteroid, and 5% glucose (D5W).

A total of 60 adult patients with clinically and electrophysiologically confirmed mild to moderate CTS will be enrolled and divided into three groups of 20 patients each. Participants will receive a single ultrasound-guided injection using one of the three study interventions. Clinical assessment will include Phalen's test and Tinel's sign. Electrophysiological assessment will include median nerve sensory and motor nerve conduction parameters, while ultrasonographic assessment will include measurement of the median nerve cross-sectional area.

Participants will be reassessed three months after the intervention using the same clinical, electrophysiological, and ultrasonographic measures. The study will compare changes in these outcomes among the three treatment groups to evaluate their relative efficacy in the management of mild to moderate CTS.

Read the detailed description

Detailed Description

Carpal tunnel syndrome (CTS) is the most common peripheral nerve entrapment syndrome and results from compression of the median nerve as it passes through the carpal tunnel at the wrist. The carpal tunnel is a relatively narrow osteofibrous canal containing the median nerve and nine flexor tendons. Any condition that decreases the available space within the tunnel or increases the volume of its contents may increase intracarpal pressure and compromise median nerve function.

The clinical severity of CTS can range from mild to severe. Mild CTS is generally characterized by intermittent sensory symptoms and sensory conduction abnormalities, whereas moderate CTS may involve both sensory and motor nerve conduction abnormalities. Severe disease may be associated with persistent numbness, weakness, thenar muscle atrophy, and evidence of more advanced nerve damage. The present study will focus on patients with mild to moderate CTS, confirmed clinically and electrophysiologically.

Conservative management of CTS includes wrist splinting, physiotherapy, and local injections. Corticosteroid injection is an established treatment option that can provide short-term symptomatic relief. More recently, other injectates have been investigated. Hyaluronic acid (HA) has been proposed as a treatment that may reduce perineural adhesions and improve median nerve gliding. In addition, perineural injection and hydrodissection using 5% glucose (D5W) have shown promising results in patients with neuropathic pain conditions, including CTS.

Ultrasound guidance will be used for all injections. Ultrasound guidance allows visualization of the median nerve and surrounding anatomical structures during the procedure and facilitates accurate placement of the injectate while avoiding direct injury to the median nerve. Ultrasonography will also be used to measure the median nerve cross-sectional area (CSA), providing an objective structural parameter for assessment and follow-up.

Study Objective

The primary objective of this comparative study is to evaluate and compare the efficacy of ultrasound-guided injections of hyaluronic acid, corticosteroid, and 5% glucose in patients with mild to moderate CTS. Treatment response will be evaluated using clinical, electrophysiological, and ultrasonographic findings.

Study Population and Design

The study will be conducted in the Department of Rheumatology, Rehabilitation, and Physical Medicine at Tanta University Hospitals. A total of 60 adult patients with mild to moderate CTS will be included. Participants will be divided into three treatment groups, with 20 patients in each group.

Eligible participants will be adults aged 18-70 years with clinical symptoms of CTS lasting at least 6 weeks and electrophysiological confirmation of mild to moderate CTS. All participants must be able to provide informed consent.

Patients will be excluded if they have received an injection into the same wrist within the previous 6 months, have undergone previous carpal tunnel surgery, have severe CTS characterized by absent sensory potentials or electromyographic evidence of denervation, or have local infection or coagulopathy.

Baseline Assessment

Before treatment, all participants will undergo a baseline assessment. This will include a full medical history and comprehensive neurological and musculoskeletal examination of the wrist.

Clinical assessment will include:

Phalen's test. Tinel's sign.

Electrophysiological assessment will be performed using nerve conduction studies (NCS), including:

Median sensory distal amplitude and conduction velocity. Median motor distal latency and amplitude. Maintenance of limb temperature at or above 32°C during the examination.

Ultrasound examination will be performed to determine the cross-sectional area of the median nerve using tracing of the inner hyperechoic rim of the epineurium.

Intervention Procedures

All injections will be performed under sterile conditions with ultrasound guidance. The participant will be positioned either supine or seated with the forearm supinated. The ultrasound probe will be positioned transversely over the inlet of the carpal tunnel, and an in-plane ulnar approach will be used. Particular care will be taken to avoid piercing the median nerve.

Participants will receive one of the following ultrasound-guided injection interventions:

Group 1 - Hyaluronic Acid

Participants in the HA group will receive 2-3 mL of high-molecular-weight hyaluronic acid. The HA will be injected perineurally with the intention of creating a gliding plane around the median nerve and reducing perineural adhesions.

Group 2 - Corticosteroid

Participants in the corticosteroid group will receive triamcinolone acetonide 40 mg mixed with 1 mL of lidocaine. The injection will be administered into the carpal tunnel under ultrasound guidance.

Group 3 - 5% Glucose

Participants in the 5% glucose group will receive 5 mL of 5% glucose (D5W) by ultrasound-guided hydrodissection around the median nerve. The procedure will aim to separate the median nerve from the flexor retinaculum and surrounding tissues.

Follow-Up and Outcome Assessment

Participants will be reassessed 3 months after the injection. Follow-up assessment will include repetition of the clinical, electrophysiological, and ultrasonographic evaluations.

Clinical outcomes will be assessed using Phalen's test and Tinel's sign. Electrophysiological outcomes will be evaluated using nerve conduction studies, including the relevant median sensory and motor nerve conduction parameters. Ultrasonographic follow-up will include reassessment of the median nerve cross-sectional area.

The study will compare the findings obtained after treatment among the three intervention groups to assess differences in treatment response.

Study Duration

The study is planned to continue for at least 12 months, from January 2026 to December 2026.

Potential Benefits

The study is intended to provide comparative information regarding three non-surgical injection approaches for the management of mild to moderate CTS. The findings may help in evaluating the relative clinical, electrophysiological, and ultrasonographic responses associated with hyaluronic acid, corticosteroid, and 5% glucose injections.

Potential Risks

The protocol identifies infection as a potential risk associated with injection procedures. Sterile equipment and sterile technique will be used to minimize this risk. Any unexpected risk that becomes apparent during the study will be communicated promptly to the participant and the relevant ethical committee.

Ethical Considerations

Informed consent will be obtained from all participants before their inclusion in the study. Participant privacy and confidentiality will be maintained. Patient names will be removed from electrophysiological and ultrasound reports to protect participant identity. Any unexpected risks arising during the course of the research will be promptly communicated to the participant and the ethical committee.

The results of the study will be tabulated and statistically analyzed, and the findings will subsequently be discussed in relation to available published data.

03

Conditions studied

  • Carpal Tunnel Syndrome (CTS)

Keywords

  • Carpal Tunnel Syndrome; Mild to Moderate CTS; Ultrasound-Guided Injection; Hyaluronic Acid; Corticosteroid; 5% Glucose; Hydrodissection; NCS
04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Adults aged 18-70 years. Clinical symptoms of carpal tunnel syndrome for ≥6 weeks. Electrophysiological confirmation of mild to moderate carpal tunnel syndrome. Ability to provide .

-

Exclusion criteria

Exclusion Criteria:

  • Prior injection into the same wrist within the previous 6 months. Previous carpal tunnel surgery. Severe carpal tunnel syndrome, defined by absent sensory potentials or electromyographic evidence of denervation.

Local infection or coagulopathy.

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Hyaluronic Acid

    Participants will receive 2-3 mL of high-molecular-weight hyaluronic acid by ultrasound-guided perineural injection around the median nerve. The injection will be performed under sterile conditions. Participants will be positioned either supine or seated with the forearm supinated. The ultrasound probe will be positioned transversely over the inlet of the carpal tunnel, and an in-plane ulnar approach will be used. Care will be taken to avoid piercing the median nerve.

    Drug: Hyaluronic Acid- corticosteroid- 5% glucose

  • Experimental
    Corticosteroid

    Participants will receive triamcinolone acetonide 40 mg mixed with 1 mL of lidocaine by ultrasound-guided injection into the carpal tunnel. The injection will be performed under sterile conditions. Participants will be positioned either supine or seated with the forearm supinated. The ultrasound probe will be positioned transversely over the inlet of the carpal tunnel, and an in-plane ulnar approach will be used. Care will be taken to avoid piercing the median nerve.

    Drug: Hyaluronic Acid- corticosteroid- 5% glucose

  • Experimental
    5% Glucose

    Participants will receive 5 mL of 5% glucose (D5W) by ultrasound-guided hydrodissection around the median nerve. The injection will be performed under sterile conditions. Participants will be positioned either supine or seated with the forearm supinated. The ultrasound probe will be positioned transversely over the inlet of the carpal tunnel, and an in-plane ulnar approach will be used. Care will be taken to avoid piercing the median nerve.

    Drug: Hyaluronic Acid- corticosteroid- 5% glucose

Interventions

  • DrugHyaluronic Acid- corticosteroid- 5% glucose

    All injections will be performed under sterile conditions with ultrasound guidance. The participant will be positioned either supine or seated with the forearm supinated. The ultrasound probe will be positioned transversely over the inlet of the carpal tunnel, and an in-plane ulnar approach will be used. Particular care will be taken to avoid piercing the median nerve. Participants will receive one of the following ultrasound-guided injection interventions: Group 1 - Hyaluronic Acid Participants in the HA group will receive 2-3 mL of high-molecular-weight hyaluronic acid. The HA will be injected perineurally with the intention of creating a gliding plane around the median nerve and reducing perineural adhesions. Group 2 - Corticosteroid Participants in the corticosteroid group will receive triamcinolone acetonide 40 mg mixed with 1 mL of lidocaine.

06

What researchers measure

Primary outcomes

  1. Change in median nerve cross-sectional area (CSA)

    Median nerve cross-sectional area measured by ultrasound at baseline and 3 months after treatment, comparing the change among the three treatment groups.

    Time frame: Baseline to 3 months after injection

07

Study locations

1 of 1 sites recruiting
08

References and documents

Publications

  • 1- Klauser AS, Halpern EJ, De Zordo T, et al. Carpal tunnel syndrome assessment with US: value of additional cross-sectional area measurements of the median nerve in patients versus healthy volunteers. Radiology. 2009;250(1):171-177250 (1): 171-177 2- Padua L, Coraci D, Erra C, et al. Carpal tunnel syndrome: clinical features, diagnosis, and management. The Lancet Neurology. 2016;15(12):1273-1284;15 (12): 1273-1284 3- Atroshi I, Gummesson C, Johnsson R, et al. Prevalence of carpal tunnel syndrome in a general population. JAMA. 1999;282(2):153-158;282 (1): 153-158 4- Wang H, Zhu Y, Wei H, rt al. Ultrasound guided local corticosteroid injection for carpal tunnel syndrome: a meta analysis of randomized controlled trials. Clin Rehabil. 2021;35(11):1506-1517 5- Raeissadat SA, Shakoori M, Cheraghi M., et al. High molecular weight hyaluronic acid for CTS: randomized controlled trial. 2025; 12(3): e149480 6- Babaei-Ghazani A, Moradnia S., Azar M., et al. 5% dextrose versus corticosteroid injection in CTS: RCT. Pain Manag. 2022; 12(6): 687-697 7- Kwon HK, Kim J, Lee J, et al. Ultrasonography of the median nerve and electrophysiologic severity in carpal tunnel syndrome. Ann Rehabil Med. 2012;36(1):72-79 8- Ramadan M, Hussein W, Salem M, et al. Conventional ultrasound and shear wave elastography in diagnosing and differentiating the severity of carpal tunnel syndrome: correlation with electrodiagnostic studies. Egypt J Radiol Nucl Med. 2024;55(1):47-55. 9- Su, Y. C., Shen, Y. P., Li, T. Y., et al. The efficacy of hyaluronic acid for carpal tunnel syndrome: A randomized, double-blind, placebo-controlled trial. Pain Medicine, 2021; 22(6), pp. 1384-1393. 10- Chappell CD, Beckman JP, Baird BC, et al. Ultrasound (US) Changes in the Median Nerve Cross-Sectional Area After Microinvasive US Guided Carpal Tunnel Release. J Ultrasound Med. 2020 Apr;39(4):693 702

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2026 to primary completion in Jun 2026, 3 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 13, 2026
First posted
Sep 17, 2026
StartActual
Mar 15, 2026
Primary completionActual
Jun 20, 2026
CompletionEst.
Oct 30, 2026
Last update
Sep 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07825155
Lead sponsor
Tanta University
Responsible party
Nahla Magdy Elsayed Mahfouz Badran (DOCTOR, Tanta University) — Principal investigator
First posted
Sep 17, 2026
Start date
Mar 15, 2026
Primary completion
Jun 20, 2026
Completion
Oct 30, 2026 (estimated)
Last update
Sep 23, 2026

Study contacts

Nahla ME Mahfouz, Batcholer degree of medicine a
Contact
dr.nahlamahfouz@gmail.com
+201279151365

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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