- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01886274
Does tDCS is Effective in the Prophylactic Treatment of Migraine
May 19, 2014 updated by: Kátia Monte-Silva, Universidade Federal de Pernambuco
Transcranial Direct Current Stimulation in the Visual Cortex of Migraine Patients: Neurophysiological and Clinical Implications
Migraine has been described as one of the most common neurological diseases, with high social and economic impact.
Despite the high prevalence, the pathophysiology of migraine is still unknown, several studies have been developed in order to advance the understanding of the pathophysiological mechanisms of the disease which are not yet entirely elucidated.
The aim of this study is to observe the effects of transcranial direct current stimulation (tDCS), applied in the visual cortex, on neurophysiological and clinical measures (frequency, intensity, duration of attacks and severity of pain) in migraine patients.
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Anticipated)
36
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Kátia Karina Monte-Silva, Dr
- Phone Number: 21267579
- Email: monte.silvakk@gmail.com
Study Locations
-
-
Pernambuco
-
Recife, Pernambuco, Brazil, 50740-560
- Recruiting
- Applied Neuroscience Laboratory-LANA
-
Principal Investigator:
- Kátia Karina Monte-Silva, Dr
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 40 years (Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Description
Inclusion criteria for migraine patients:
- Age must be between 18 to 40 years
- Gender: male and female
- Diagnosis must meet the 2004 IHS criteria for migraine without aura and migraine with aura
- Duration of the disease must be at least 12 months
- Patients had no preventative medication consistently for at least six months prior to study initiation.
Inclusion criteria for healthy individuals
- Age must be between 18 to 40 years
- Gender: male and female
- Individuals who have not filed headache crisis in the last year assessed according to the 2004 IHS criteria
Exclusion criteria
- Pregnant woman
- Individuals with clinical evidence of brain injury
- Metallic implant head
- Pacemaker
- History of seizure and chronic pain associated with other pathologies
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: tDCS
The experimental group received tDCS to the occipital cortex in 12 sessions, 3 days per week.
|
tDCS involves application of very low amplitude direct current via surface scalp electrodes.
The applied current modifies the transmembrane neuronal potential and thus influences the level of excitability.
Depending on the polarity of active electrodes tDCS can increase or decrease the cortical excitability.
The cathodal tDCS decrease the excitability, in this study a constant current of 2 mA intensity was applied for 20 min.
|
Sham Comparator: control
The control group received sham stimulation to the occipital cortex in 12 sessions, 3 days per week.
|
tDCS involves application of very low amplitude direct current via surface scalp electrodes.
The applied current modifies the transmembrane neuronal potential and thus influences the level of excitability.
Depending on the polarity of active electrodes tDCS can increase or decrease the cortical excitability.
The cathodal tDCS decrease the excitability, in this study a constant current of 2 mA intensity was applied for 20 min.
|
No Intervention: healthy subjects
This group was submitted to one evaluation session of cortical excitability.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from phosphene threshold
Time Frame: At baseline,1 month, 2 months, 3 months/ per session - at baseline and 30 minutes (after tDCS)
|
A 10-cm circular coil was used that has giving a peak magnetic field strength of 2 tesla.
Subjects were asked to wear a blindfold, sit comfortably in a chair and to close their eyes to diminish ambient light.In sagittal line, three points were scored: 2, 3 and 4 cm above the inion.
The single pulse transcranial magnetic stimulation was applied to one of the points scored and the subject was asked to report the presence or absence of a phosphene immediately after stimulation.
The stimulation was repeated ten times at each intensity with a maximum frequency of 0.2 Hz, stimulation was initially applied to 60% of the maximum intensity of the stimulator.
The intensity of stimulation was changed into blocks of 5% to minimum intensity that the subject can perceive the phosphene certainly, five times ten, then this value was set as the PT for migraineurs and controls.
|
At baseline,1 month, 2 months, 3 months/ per session - at baseline and 30 minutes (after tDCS)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from eletroencephalography
Time Frame: At baseline, 1 month and 2 months, 3 months
|
Electroencephalography was performed by digital EEG equipment, the sampling rate of 500 Hz, 0.5 Hz high pass filter and low pass 35 Hz to capture brain electrical activity through 23 electrodes on the scalp according to the International 10-20 system.After positioning the electrodes, the subject remained comfortably seated and relaxed, but awake, with eyes closed 30 cm from the photic stimulator and, without any stimulation, EEG was collected for 1 minute (baseline).After the baseline, was collected a sequence of 1 minute record without stimulation followed by 3 seconds to 9 Hz photic stimulation.
This sequence is repeated 4 times.
After this procedure, the subject received trains of visual stimuli, 20 seconds each, at frequencies of 3, 9, 15, 21 and 27 Hz, 1 minute spaced from each other and totaling 12 minutes evaluation.
|
At baseline, 1 month and 2 months, 3 months
|
Change from pain diary
Time Frame: 3 followed months
|
The diary is a report of the frequency of the migraine attacks, the intensity, the onset and duration of the pain, the number of migraine-related days (the number of days on which the patients had migraine-related symptoms) and the type of analgesics in case of a migraine attack;
|
3 followed months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
October 1, 2012
Primary Completion (Actual)
June 1, 2013
Study Completion (Anticipated)
October 1, 2014
Study Registration Dates
First Submitted
June 18, 2013
First Submitted That Met QC Criteria
June 21, 2013
First Posted (Estimate)
June 25, 2013
Study Record Updates
Last Update Posted (Estimate)
May 20, 2014
Last Update Submitted That Met QC Criteria
May 19, 2014
Last Verified
May 1, 2014
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Migraine_tDCS
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Migraine
-
Austrian Migraine Registry CollaborationMedical University of Vienna; Medical University Innsbruck; Austrian Headache...RecruitingMigraine | Chronic Migraine | Migraine Without Aura | Migraine With Aura | Episodic MigraineAustria
-
Tonix Pharmaceuticals, Inc.PremierCompletedChronic Migraine | Chronic Migraine, Headache | Chronic Migraine Without Aura | Aura MigraineUnited States
-
Harvard University Faculty of MedicineBrigham and Women's Hospital; Palmer Center for Chiropractic Research (PCCR)CompletedMigraine | Migraine Disorders | Migraine Without Aura | Migraine With Aura | Migraine, ClassicUnited States
-
University of FlorenceAzienda Ospedaliera Città della Salute e della Scienza di Torino; University... and other collaboratorsRecruitingMigraine | Chronic Migraine | Migraine Without Aura | Migraine With AuraItaly
-
CoolTech LLCTerminatedMigraine | Migraine Without Aura | Migraine With Aura | Episodic MigraineUnited States
-
University of FlorenceAzienda Ospedaliera Città della Salute e della Scienza di Torino; University... and other collaboratorsRecruitingMigraine | Chronic Migraine | Migraine Without Aura | Migraine With AuraItaly
-
Notre-Dame Hospital, Montreal, Quebec, CanadaAllerganCompletedChronic Migraine | Migraine Without Aura | Migraine With AuraCanada
-
Glostrup University Hospital, CopenhagenUnknownChronic Migraine | Migraine Without Aura | Migraine With AuraDenmark
-
Fondazione I.R.C.C.S. Istituto Neurologico Carlo...CompletedMigraine With Aura | Migraine in ChildrenItaly
-
The Cleveland ClinicWithdrawnMigraine | Migraine Disorders | Headache Disorders, Primary | Migraine Headache | Migraine Without Aura | Migraine With Aura | Headache, MigraineUnited States
Clinical Trials on Transcranial direct current stimulation
-
Federal University of ParaíbaCompleted
-
Medical University of South CarolinaEunice Kennedy Shriver National Institute of Child Health and Human Development...Recruiting
-
University of Campinas, BrazilUnknownEpilepsy IntractableBrazil
-
Dina Hatem ElhammadyUnknown
-
Shirley Ryan AbilityLabNational Institute on Deafness and Other Communication Disorders (NIDCD)CompletedStroke | Nonfluent AphasiaUnited States
-
University of Texas Rio Grande ValleyRecruitingSpinal Cord Diseases | Spinal Cord InjuriesUnited States
-
Federal University of ParaíbaUnknown
-
University of CalgaryAlberta Health servicesRecruitingCervicogenic HeadacheCanada
-
Universidade Federal do Rio Grande do NorteNot yet recruitingLow Back Pain | Transcranial Direct Current Stimulation
-
Nanyang Technological UniversityActive, not recruiting