The Use of tDCS in the Orofacial Pain

NCT ID: NCT05584384

Last Updated: 2024-02-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-10-03

Study Completion Date

2024-12-31

Brief Summary

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The trial´s main goal is to explore the use of transcranial direct current stimulation (tDCS) as a treatment option for persons suffering from orofacial pain. The aim of the trial is to further investigate the efficacy and longevity of tDCS in treating chronic pharmacoresistant orofacial pain.

A prospective, randomized, double-blinded, two-arm, sham-controlled design will be utilized. Primarily, the analgesic effect's intensity and duration will be assessed. Secondarily, the associated reduction of symptoms of anxiety and depression will be investigated, as well as the impact on the general quality of life. Anodal stimulation (6 sessions in 2 weeks, 2mA, 20 min, cathode over the opposite Fp area) of M1 contralateral to the pain location will be employed. Washout periods of 48-72 hours will be kept between applications to improve neuroplasticity changes' induction, which is estimated to reflect in the effect retention. Eight major evaluation points will be employed in 26 weeks, and a daily numeric rating scale (NRS) self-assessment.

The trial will potentially improve the quality of life, reduce the health burden caused by chronic orofacial pain, and provide further data on the use of tDCS in this setting, thus, enabling an additional route to manage the symptoms of pain in the future.

Detailed Description

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Conditions

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Orofacial Pain

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Prospective, randomized, double-blinded, placebo-controlled, two-arm trial.
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
The participants will be distributed between 2 arms using an aperiodic, nondeterministic, atmospheric random noise randomization algorithm. The stimulation type will be unblinded upon completing all the follow-ups or dropping out. The blinding will be ensured by a dedicated team member with no direct access to the participants or their data.

Study Groups

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Active group

The investigators aim for six sessions of anodal stimulation over the right primary motor area contralateral to the orofacial pain (C3 or C4 in 10-20 EEG system) with cathode above the frontal area ipsilateral to the orofacial pain (Fp1 or Fp2) using HDCstim by Newronika S.r.l., Italy. The therapy will be administered over two weeks (Mon, Wed, Fri) to ensure a washout period of 48 to 72 hours between applications. The current of 2 mA will be delivered via silicone electrodes inserted into saline (0.9%) filled cellulose sponges, anode 5x5cm, cathode 6x8cm, for 20 minutes with 20 seconds of both ramp-up and ramp-down. An International 10-20 EEG system will be used to determine the stimulation location, and dedicated EEG caps will be used to ensure consistency between applications.

Group Type EXPERIMENTAL

Transcranial Direct Current Stimulation

Intervention Type DEVICE

Transcranial Direct Current Stimulation (tDCS) is a non-invasive neuromodulatory method utilizing weak electrical currents to elicit short and long-term central nervous system changes.

Sham group

The sham (placebo) will be administered using the same devices with a preprogrammed sham protocol (using HDCprog by Newronika S.r.l., Italy) of 20 minutes to be virtually indistinguishable from the active stimulation.

Group Type PLACEBO_COMPARATOR

Sham Transcranial Direct Current Stimulation

Intervention Type DEVICE

The sham was administered using the same tDCS devices as in the active group with a preprogrammed sham protocol of 20 minutes to be virtually indistinguishable from the active stimulation.

Interventions

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Transcranial Direct Current Stimulation

Transcranial Direct Current Stimulation (tDCS) is a non-invasive neuromodulatory method utilizing weak electrical currents to elicit short and long-term central nervous system changes.

Intervention Type DEVICE

Sham Transcranial Direct Current Stimulation

The sham was administered using the same tDCS devices as in the active group with a preprogrammed sham protocol of 20 minutes to be virtually indistinguishable from the active stimulation.

Intervention Type DEVICE

Other Intervention Names

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tDCS Sham tDCS

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of Orofacial Pain by a pain medicine specialist according to ICOP (International classification of orofacial pain) and ICHD3 (International classification of headache disorder)
* Stable analgesic therapy one month before the stimulation series

Exclusion Criteria

* Changes to the analgesic therapy in 6 months following the stimulation series
* Non-compliance with the follow-ups
* General contraindications to tDCS - pregnancy, unstable cardiovascular disorders, epilepsy and intracranial masses
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Charles University, Czech Republic

OTHER

Sponsor Role lead

Responsible Party

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Tadeáš Mareš

Head of tDCS lab

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jitka Fricova, M.D., Ph.D.

Role: STUDY_DIRECTOR

General University Hospital in Prague; Charles University in Prague

Tadeas Mares, M.D.

Role: STUDY_CHAIR

General University Hospital in Prague; Charles University in Prague

Martin Anders, M.D., Ph.D.

Role: STUDY_CHAIR

General University Hospital in Prague; Charles University in Prague

Jozef Buday, M.D., Ph.D.

Role: STUDY_CHAIR

General University Hospital in Prague; Charles University in Prague

Locations

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Pain Management Centre, General University Hospital in Prague; Charles University in Prague

Prague, , Czechia

Site Status RECRUITING

Countries

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Czechia

Central Contacts

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Jitka Fricova, M.D., Ph.D.

Role: CONTACT

0042022496 6370

Facility Contacts

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Jitka Fricova, M.D., Ph.D.

Role: primary

00420224966370

Other Identifiers

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53/22 Grant AZV VES 2023VFN

Identifier Type: -

Identifier Source: org_study_id

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