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Neuropathic PainNeuro-tDCSNCT02747758

Transcranial Direct Current Stimulation (tDCS) in Chronic Neuropathy

A study testing cathodal transcranial direct current stimulation (tDCS) and anodal transcranial direct current stimulation (tDCS) in people with Neuropathic Pain and Neuralgia, run by Charite University, Berlin, Germany at 1 site in Germany.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study evaluates the effect of additional transcranial direct stimulation (tDCS) on pain in patients with chronic neuropathic pain undergoing treatment with regional anaesthesiological techniques. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Neuropathic Pain, Neuralgia
What is being tested?
cathodal transcranial direct current stimulation (tDCS) and anodal transcranial direct current stimulation (tDCS)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
17 participants
Where
1 siteGermany
Study dates
19 Sep 2016to Jan 2021
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with neuropathic pain with indication of regional anaesthesiological interventions

Who cannot join

  • <18 years of age
  • Pregnancy
  • Police custody
  • Epilepsy
  • Participation in another prospective clinical intervention study within the last 30 days

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Pain Clinic of Charité hospital Campus Virchow Klinikum

    Berlin, 13353

Other trials in Germany

About this study

Official title: Randomized Controlled Clinical Trial Evaluating Transcranial Direct Current Stimulation (tDCS) in Chronic Pain Patients With Neuropathy

This study evaluates the effect of additional transcranial direct stimulation (tDCS) on pain in patients with chronic neuropathic pain undergoing treatment with regional anaesthesiological techniques.

Read the detailed description

About 3.8 Million persons in Germany suffer from chronic pain with a relevant physical and social impairment representing approximately 7% of the population. Chronic pain conditions include patients with neuropathic pain such as trigeminal neuralgia, post-zoster pain or pain after amputations. There is a significant number of patients with pain without response to optimised drug therapy. Especially in these chronic pain patients there is data demonstrating maladaptive plasticity as pathophysiological evidence of structural changes in brain connectivity. Patients are treated with multimodal pain therapy concepts including interventional procedures with nerve infiltration techniques.

One innovative therapeutic option for pain patients is transcranial direct current stimulation (tDCS): In recent clinical trials, patients reported on reduced overall pain intensity following tDCS stimulation series shown e.g. from Bolognini et al., Antal et al. and most recently from Volz and colleagues. However, there is no current data available evaluating a role of tDCS for patients with chronic neuropathic pain treated with regional anaesthesiological techniques.

Objective: To evaluate effect of additional tDCS series on pain in patients with chronic neuropathic pain

Primary study endpoint: relative reduction in pain (initial VAS measured versus VAS after completion of the therapy series) as a numeric value between 0 and 10.

Being tested
cathodal transcranial direct current stimulation (tDCS), sham transcranial direct current stimulation (tDCS), anodal transcranial direct current stimulation (tDCS)
Keywords
neuropathic pain, neuralgia, tDCS, transcranial direct current stimulation
Medical subject headings
Neuralgia

What participants receive

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

  • cathodal transcranial direct current stimulation (tDCS)Device

    transcranial direct current stimulation (tDCS) is applied in active groups using cathodal active M1 stimulation. Active stimulation is applied with 2mA direct current via 20cm² electrodes.

  • sham transcranial direct current stimulation (tDCS)Device

    transcranial direct current stimulation (tDCS) is applied in active groups using a sham-stimulation including ramp up and ramp down of current.

  • anodal transcranial direct current stimulation (tDCS)Device

    transcranial direct current stimulation (tDCS) is applied in active groups using anodal active M1 stimulation. Active stimulation is applied with 2mA direct current via 20cm² electrodes.

Study groups in NCT02747758
Study groupRoleWhat they receive
ControlSham comparatorsham transcranial direct current stimulation (tDCS)
Receives: Device: sham transcranial direct current stimulation (tDCS)
cathodal stimulationExperimentalcathodal transcranial direct current stimulation (tDCS)
Receives: Device: cathodal transcranial direct current stimulation (tDCS)
anodal stimulationExperimentalanodal transcranial direct current stimulation (tDCS)
Receives: Device: anodal transcranial direct current stimulation (tDCS)

What is being measured

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

  1. relative pain intensity

    relative reduction in pain intensity (initial VAS measured versus VAS after completion of the therapy series), VAS as a numeric value between 0 and 10.

    Measured: after completion of therapy series, typically after 2 weeks of treatment

Secondary outcomes (4)
  1. acute pain reduction by tDCS application (relative reduciton measured as VAS after completion of tDCS stimulation versus initial VAS measured before stimulation)

    relative reduction of pain intensity before and after each tDCS session and infiltration

    Measured: 30 Minutes after application

  2. time to next regional-anesthesiological series

    time until patients need additional regional-anesthesiological interventions

    Measured: 6 months

  3. number of regional-anesthesiological interventions for pain control

    number of required regional-anesthesiological interventions to achieve sufficient pain reduction

    Measured: 10 days

  4. adverse events

    Analysis of adverse reaction (skin redness, headache, concentration, other)

    Measured: 1 months

Timeline

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

  1. First posted22 Apr 2016 (estimated)
  2. Study start19 Sep 2016
  3. Primary completionDec 2020
  4. Study completionJan 2021

Why it stopped: Recruitment due to CORONA

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
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
17 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02747758
Sponsor's protocol ID
Neuro-tDCS1
Acronym
Neuro-tDCS
Status last verified
Mar 2023
First submitted
15 Apr 2016
Last updated
16 Mar 2023
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Tafelski S, Beutlhauser T, Gouliou-Mayerhauser E, Fritzsche T, Denke C, Schafer M. [Practice of regional anesthesia for chronic pain patients in specialized pain services : A nationwide survey in Germany]. Schmerz. 2015 Apr;29(2):186-94. doi: 10.1007/s00482-014-1503-6. German.

    PubMed 25479710
  • Flor H, Nikolajsen L, Staehelin Jensen T. Phantom limb pain: a case of maladaptive CNS plasticity? Nat Rev Neurosci. 2006 Nov;7(11):873-81. doi: 10.1038/nrn1991.

    PubMed 17053811
  • Hauser W, Schmutzer G, Hinz A, Hilbert A, Brahler E. [Prevalence of chronic pain in Germany. A representative survey of the general population]. Schmerz. 2013 Feb;27(1):46-55. doi: 10.1007/s00482-012-1280-z. German.

    PubMed 23321703
  • Antal A, Terney D, Kuhnl S, Paulus W. Anodal transcranial direct current stimulation of the motor cortex ameliorates chronic pain and reduces short intracortical inhibition. J Pain Symptom Manage. 2010 May;39(5):890-903. doi: 10.1016/j.jpainsymman.2009.09.023.

    PubMed 20471549
  • Volz MS, Farmer A, Siegmund B. Reduction of chronic abdominal pain in patients with inflammatory bowel disease through transcranial direct current stimulation: a randomized controlled trial. Pain. 2016 Feb;157(2):429-437. doi: 10.1097/j.pain.0000000000000386.

    PubMed 26469395

Questions about this trial

What is this clinical trial studying?

A study testing cathodal transcranial direct current stimulation (tDCS) and anodal transcranial direct current stimulation (tDCS) in people with Neuropathic Pain and Neuralgia, run by Charite University, Berlin, Germany at 1 site in Germany.

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 1 inclusion and 5 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: stopped early, as of the sponsor's last update on 16 Mar 2023. 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 Germany. 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?

The study was stopped early (reason given: Recruitment due to CORONA). Results are not available in the source record.

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?

relative pain intensity (time frame: after completion of therapy series, typically after 2 weeks of treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02747758, which also lists 5 linked publications.

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 16 Mar 2023; AzTrials last refreshed its copy on 3 Nov 2026.

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