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CompletedNCT06940557Updated Apr 23, 2025

Efficacy And Tolerability Of Alpha Lipoic Acid And Vitamin B Preparation In Carpal Tunnel Syndrome

A Phase 2/3 interventional study of Bionerv and Placebo in Carpal Tunnel Syndrome (CTS), sponsored by Universiti Putra Malaysia. Completed at 1 site in Malaysia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-23.

Sponsored by Universiti Putra Malaysia · Phase 2/3, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled Dec 2023, registered Apr 2025).
Phase
Phase 2/3
Study type
Interventional
Enrollment
70
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this clinical trial is to assess the effectiveness and safety of an oral combination of alpha lipoic acid (ALA) and vitamin B complex in treating mild to moderate carpal tunnel syndrome (CTS) in adults. The main questions it aims to answer are:

  • Does the combination of ALA and vitamin B improve nerve function (based on electrodiagnostic studies) in patients with CTS?
  • Does this treatment reduce CTS-related symptoms and improve quality of life?
  • What side effects, if any, do participants experience while taking the treatment?

Researchers will compare the combination of ALA and vitamin B to a placebo (a look-alike substance that contains no active drug) to evaluate its effectiveness.

Participants will:

  • Take the ALA and vitamin B combination or a placebo once daily for 6 months.
  • Attend clinic visits at the start of the study, after 3 months, and after 6 months for physical examinations, nerve conduction studies, and to complete questionnaires about their symptoms and quality of life.
  • Receive follow-up phone calls and reminder messages to ensure medication compliance and attendance at scheduled visits.
Read the detailed description

The patients were randomized to receive oral combination of alpha lipoic acid and vitamin B (alpha lipoic acid; 300mg, methylcobalamin; 500mcg, vitamin B1; 39mg and vitamin B6; 8mg), 2 tablets once daily or placebo drug (maltodextrin, microcrystalline cellulose, tricalcium phosphate, silicon gioxide, magnesium stearate) 2 tablets once daily. Randomization sequence was done by using an online random number generator program using a mixed block randomization technique at a ratio of 1:1. In cases of serious adverse event, unblinding process was incorporated where the identity of the drug was revealed to manage the subject's condition. This was done by intruding the emergency code key by the researcher. All patients provided a written consent for the study.

During visit 1, a thorough history and physical examination were done, and demographic data was collected. Afterward, the patients were required to answer three sets of self-administered questionnaires: Boston Carpal Tunnel Questionnaire (BCTQ), Visual analogue score (VAS) and SF-36. The BCTQ is a specific questionnaire for assessing CTS that consists of two distinct scales, the Symptom Specific Scale (SSS) which has 11 items and the Functional Status Scale (FSS) containing 8 items. Each scale generates a final score ranging from 1 to 5, with a higher score indicating greater disability and poor symptoms control. BCTQ is a reliable questionnaire to assess CTS owing to its high cross-cultural adaptation and multilingual validity and reliability. The VAS is a visual scale with 0 scored as "no pain" and 10 as "worst pain imaginable" and serves as an excellent tool for pain score with excellent validity and reproducibility. The SF-36 is a quality-of-life questionnaire that comprises of 36 questions covering eight domains of health which are; Physical Functioning (PF), Role Limitations due to Physical Health, Role Limitations (RL) due to Emotional Problems (RE), energy/fatigue, emotional well-being, social functioning, pain, and general health (GH) where a higher score indicates a better outcome . After the administration of these questionnaires, they will be subjected for a nerve conduction study (NCS) to determine the severity of CTS. The NCS were performed by the same trained personnel to ensure consistency and accuracy.

The patients were reassessed at Visit 2 (3 months post-treatment) and Visit 3 (6 months post-treatment). During each visit, they underwent physical examination, NCS, and were required to complete the three sets of questionnaires (BCTQ, VAS, and SF-36). They were also required to fill in the form regarding the side effects of the treatments. The investigators made a phone call and sent reminder message at the 6th and 18th week to ensure compliance, medication adequacy and follow up review. During the study, patients were allowed to undergo the standard of care treatment at our center such as physiotherapy.

02

Conditions studied

  • Carpal Tunnel Syndrome (CTS)

Keywords

  • Vitamin B
  • Alpha Lipoic Acid
  • CTS
  • NCS
  • BCTQ
  • SF-36
  • VAS
03

In context

Carpal Tunnel Syndrome

589 studies on the registry are indexed under Carpal Tunnel Syndrome; 139 are open to participants now.

This study's enrollment of 70 is above the median of 60 across 445 interventional studies indexed under Carpal Tunnel Syndrome.

Browse Carpal Tunnel Syndrome studies →

Lead sponsor

Universiti Putra Malaysia is the lead sponsor of 144 studies on the registry; 51 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • all patients with numbness and tingling sensation at the first finger until the radial site of the 4th finger
  • and/or fulfil the electrodiagnostic criteria of mild to moderate CTS, based on the Padua Scale as defined below:

    • Mild: abnormal digit/wrist Sensory Nerve Conduction Velocity (CV) and normal Distal Motor Latency (DML)
    • Moderate: abnormal digit/wrist Sensory Nerve Conduction Velocity (SNCV) and abnormal Distal Motor Latency (DML).

Exclusion criteria

Exclusion Criteria:

  • pregnant or breastfeeding women
  • patients with symptoms of CTS but have normal NCS
  • patients taking traditional or complementary medication for CTS
  • patients with electrodiagnostic criteria of severe or extreme CTS as defined in the Padua scale:

    • Severe: Absence of sensory response (SNAP) and abnormal Distal Motor Latency (DML).
    • Extreme: Absence of motor (CMAP) and sensory responses (SNAP).
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
70 participants (actual)

Study arms

  • Active comparator
    Treament

    alpha lipoic acid; 300mg, methylcobalamin; 500mcg, vitamin B1; 39mg and vitamin B6; 8mg 2 tablets once daily

    Drug: Bionerv

  • Placebo comparator
    Placebo

    maltodextrin, microcrystalline cellulose, tricalcium phosphate, silicon gioxide, magnesium stearate 2 tablets once daily

    Drug: Placebo

Interventions

  • DrugBionerv

    alpha lipoic acid; 300mg, methylcobalamin; 500mcg, vitamin B1; 39mg and vitamin B6; 8mg, 2 tablets once daily

    Also known as: Group A

  • DrugPlacebo

    maltodextrin, microcrystalline cellulose, tricalcium phosphate, silicon gioxide, magnesium stearate 2 tablets once daily

    Also known as: Group B

06

What researchers measure

Primary outcomes

  1. Improvement on Nerve Conduction Study

    Electrodiagnostic improvement of the median nerve on Nerve Conduction Study (NCS)

    Time frame: Enrolment (Visit 0) to Visit 1 (3 months) and to Visit 2 (6 months)

Secondary outcomes

  1. Improvements in symptoms using the Boston Carpal Tunnel Questionnaire (BCTQ)

    The BCTQ is a specific self administered questionnaire for assessing CTS that consists of two distinct scales, the Symptom Specific Scale (SSS) which has 11 items and the Functional Status Scale (FSS) containing 8 items. Each scale generates a final score ranging from 1 to 5, with a higher score indicating greater disability and poor symptoms control. BCTQ is a reliable questionnaire to assess CTS owing to its high cross-cultural adaptation and multilingual validity and reliability

    Time frame: Enrolment (Visit 0) to Visit 1 (3 months) and to Visit 2 (6 months)

  2. Improvements in symptoms using the visual analog score (VAS)

    The VAS is a visual scale with 0 scored as "no pain" and 10 as "worst pain imaginable" and serves as an excellent tool for pain scoring with excellent validity and reproducibility

    Time frame: Enrolment (Visit 0) to Visit 1 (3 months) and to Visit 2 (6 months)

  3. Improvements in quality of life using the SF-36 questionnaire

    The SF-36 is a quality-of-life is a self administered questionnaire that comprises 36 questions covering eight domains of health: physical functioning (PF), role limitations due to physical health, role limitations (RL) due to emotional problems (RE), energy/fatigue, emotional well-being, social functioning, pain, and general health (GH), where a higher score indicates a better outcome.

    Time frame: Enrolment (Visit 0) to Visit 1 (3 months) and to Visit 2 (6 months)

Other outcomes

  1. Side effects of the treatment and tolerability

    The tolerability in this study is based on patient reporting side-effects that developed after taking the medications using a self-administered reporting form. There are no blood or radiological investigation involved to confirm its association with the symptoms.

    Time frame: Enrolment (Visit 0) to Visit 1 (3 months) and to Visit 2 (6 months)

07

Study locations

1 site
  • Hospital Sultan Abdul Aziz Shah
    Serdang, Selangor 43000, Malaysia
08

References and documents

Publications

  • Padua L, LoMonaco M, Gregori B, Valente EM, Padua R, Tonali P. Neurophysiological classification and sensitivity in 500 carpal tunnel syndrome hands. Acta Neurol Scand. 1997 Oct;96(4):211-7. doi: 10.1111/j.1600-0404.1997.tb00271.x. PubMed 9325471 ↗
  • Di Geronimo G, Caccese AF, Caruso L, Soldati A, Passaretti U. Treatment of carpal tunnel syndrome with alpha-lipoic acid. Eur Rev Med Pharmacol Sci. 2009 Mar-Apr;13(2):133-9. PubMed 19499849 ↗
  • Passiatore M, Perna A, De-Vitis R, Taccardo G. The Use of Alfa-Lipoic Acid-R (ALA-R) in Patients with Mild-Moderate Carpal Tunnel Syndrome: A Randomised Controlled Open Label Prospective Study. Malays Orthop J. 2020 Mar;14(1):1-6. doi: 10.5704/MOJ.2003.001. PubMed 32296475 ↗

Study documents

  • Protocol and statistical analysis plan · Apr 1, 2023
  • Informed consent form · Apr 1, 2023

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — The individual participant data (IPD) from this study will not be shared to ensure patient confidentiality, as participants did not provide explicit consent for data sharing. Additionally, ethical guidelines, regulatory constraints, and concerns about potential data misuse further limit the feasibility of sharing IPD.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 23, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06940557
Lead sponsor
Universiti Putra Malaysia
Collaborators
BREGO Life Sciences Sdn Bhd
Responsible party
Anna Misyail Abdul Rashid (Dr,, Universiti Putra Malaysia) — Principal investigator
First posted
Apr 23, 2025
Start date
Dec 1, 2023
Primary completion
Sep 30, 2024
Completion
Sep 30, 2024
Last update
Apr 23, 2025

Study contacts

ANNA MISYAIL ABDUL RASHID, NEUROLOGIST
principal investigator · UPM

Oversight

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

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