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StrokeNCT06740591

HD-tDCS for Pain Reduction in Post-Stroke Pain: a Randomized Crossover Trial

A study testing HD-tDCS in people with Stroke and Pain, run by Pusan National University Yangsan Hospital at 1 site in South Korea.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This study aims to assess the effectiveness of multichannel transcranial direct current stimulation (tDCS) in alleviating pain and to evaluate its safety in patients with central post-stroke pain (CPSP) Read more about this study

Who is it for?
Ages 19 to 90 years
Conditions the study is for
Stroke, Pain, CPSP
What is being tested?
HD-tDCS
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
30 participants
Where
1 siteSouth Korea
Study dates
24 Nov 2023to 30 Jul 2025
Phase
Interventional
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 19 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults aged between 19 and 90 years.
  • Diagnosed with first-ever stroke based on clinical observation and neuroimaging by a physician.
  • Stroke lesion located in the cortex or subcortex [basal ganglia (BG) or thalamus].
  • Fulfillment of mandatory criteria for pain (pain in the body part corresponding to central nervous system lesions, onset of pain immediately after stroke, confirmation that the pain corresponds to the lesion site, exclusion of other causes of pain such as peripheral neuropathic pain).
  • Cognitive ability sufficient to understand and follow the instructions of the researcher.
  • Voluntary consent to participate in the clinical trial and signed informed consent.

Who cannot join

  • History of fractures or orthopedic surgeries on the affected side.
  • Presence of significant pre-existing neurogenic disorders.
  • Co-existing severe psychiatric disorders such as major depressive disorder, schizophrenia, bipolar disorder, or dementia.
  • Complex regional pain syndrome (CRPS) diagnosed based on Budapest criteria.
  • Other causes of pain in the affected area, such as peripheral nerve damage.
  • Exclusion criteria for transcranial magnetic stimulation (e.g., pregnancy, cancer, patients with abnormal responses to stimulation, presence of intracranial metal implants, hypersensitivity to pain, history of seizures, or injuries/skin conditions at electrode attachment sites).
  • Deemed unsuitable for participation in the study by the principal investigator.

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Pusan national university Yangsan Hospital

    Gyeongsang, Yangsan, 50610

Other trials in South Korea

About this study

Official title: Evaluation of the Efficacy and Safety of High-Definition Transcranial Direct Current Stimulation for Pain Reduction in Post-Stroke Pain Patients: Investigator-Initiated, Single-Center, Randomized, Crossover, Single-Blind Clinical Trial

This study aims to assess the effectiveness of multichannel transcranial direct current stimulation (tDCS) in alleviating pain and to evaluate its safety in patients with central post-stroke pain (CPSP)

Conditions
Stroke, Pain, CPSP, TDCS
Being tested
HD-tDCS, Sham High-Definition Transcranial Direct Current Stimulation(sham HD-tDCS)
Medical subject headings
Stroke, Pain

What participants receive

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

  • HD-tDCSDevice

    The HD-tDCS stimulation was applied for 20 minutes, 5 times a week, for a total of 10 sessions.

  • Sham High-Definition Transcranial Direct Current Stimulation(sham HD-tDCS)Device

    The Sham HD-tDCS stimulation was applied for 20 minutes, 5 times a week, for a total of 10 sessions.

Study groups in NCT06740591
Study groupRoleWhat they receive
Experimental : HD-tDCSExperimentalThe HD-tDCS stimulation was applied for 20 minutes, 5 times a week, over a total of 10 sessions.
Receives: Device: HD-tDCS
Sham HD-tDCSSham comparatorThe Sham HD-tDCS stimulation was applied for 20 minutes, 5 times a week, over a total of 10 sessions.
Receives: Device: Sham High-Definition Transcranial Direct Current Stimulation(sham HD-tDCS)

What is being measured

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

  1. Change of pain score in Brief Pain Inventory(BPI)

    The Brief Pain Inventory (BPI) is a widely used questionnaire for assessing pain. It measures pain intensity over the past week or the last 24 hours using four 11-point Likert scale items: worst pain, least pain, average pain, and current pain. Additionally, it evaluates how pain interferes with daily activities, mood, walking ability, normal work, relationships with others, sleep, and leisure activities, also using an 11-point Likert scale. The total score ranges from 0 (no pain) to 40 (worst pain), with higher scores indicating greater musculoskeletal pain severity. Pain intensity is categorized as mild (1-4), moderate (5-6), or severe (7-10).

    Measured: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)

Secondary outcomes (4)
  1. Change of pain score in Neuropathic Pain Scale(NPS)

    The Neuropathic Pain Scale (NPS) consists of 10 subscales, each representing a different aspect of neuropathic pain. Pain intensity for each subscale is measured using a Visual Analog Scale (VAS), where 0 indicates no pain and 10 represents the worst possible pain. These subscales assess the intensity of overall pain, sharpness, heat, aching, cold, sensitivity to light touch or fabric, and itchiness. Participants complete this assessment through an interview-based questionnaire. Higher scores reflect greater pain intensity.

    Measured: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)

  2. Change of depression score in Beck Depression Inventory-II(BDI-II)

    The Beck Depression Inventory (BDI) is one of the most widely used depression assessment tools worldwide. The BDI consists of questions based on common daily life experiences . As a self-report tool, participants complete the questionnaire by indicating which statements apply to them. The inventory includes 21 items, each with four response options, scored from 0 to 3, with a total possible score of 63. Higher scores indicate a greater severity of depression.

    Measured: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)

  3. Change of quality of life score in the EuroQol Five-dimensions-Three-Level Quality of Life Instrument(EQ-5D-3L)

    This tool is widely used to assess health-related quality of life. It consists of three multiple-choice questions across five domains: mobility (M), self-care (SC), usual activities (UA), pain/discomfort (PD), and anxiety/depression (AD). Responses are coded on a scale from 1 to 3, representing none, moderate, and severe, respectively. The total score ranges from 1 (no problems in any domain) to 3 (severe problems in all domains). Higher scores indicate a lower quality of life.

    Measured: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)

  4. Change in Blood Pressure to Sustained Muscle Contraction

    This assessment evaluates the autonomic nervous system's response to sustained muscle contraction by measuring blood pressure. Blood pressure are measured while the participant is lying comfortably for 20 minutes in a relaxed state. Then, the participant holds a hand dynamometer at 30% of their maximum grip strength for 5 minutes, during which blood pressure are recorded. Afterward, the participant rests for 10 minutes in a relaxed position, and the measurements are taken again.

    Measured: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)

Timeline

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

  1. First posted18 Dec 2024
  2. Study start24 Nov 2023
  3. Primary completion24 Apr 2024
  4. Study completion30 Jul 2025 (estimated)

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06740591
Sponsor's protocol ID
23-2023-001
Status last verified
Dec 2024
First submitted
13 Dec 2024
Last updated
18 Dec 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing HD-tDCS in people with Stroke and Pain, run by Pusan National University Yangsan Hospital at 1 site in South Korea.

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 6 inclusion and 7 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: under way, not looking for participants, as of the sponsor's last update on 18 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. 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?

Change of pain score in Brief Pain Inventory(BPI) (time frame: Baseline(prior to the first intervention), Week 2(after the end of the first device intervention), Week 3(prior to the second device intervention), and Week 4(after the end of the second device intervention)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 18 Dec 2024.

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