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Effect of Transcranial Direct-current Stimulation in Attentional Performance and Pain in Patients With Fibromyalgia

Effect of Transcranial Direct-current Stimulation in Attentional Performance and Pain in Patients With Fibromyalgia

Status
UNKNOWN
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02454218
Enrollment
40
Registered
2015-05-27
Start date
2014-11-30
Completion date
2015-08-31
Last updated
2015-05-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fibromyalgia

Keywords

Fibromyalgia, Transcranial direct current stimulation

Brief summary

tDCS can modify the attentional response of patients with fibromyalgia. Methods: This study deals with a randomized, blind, crossover, controlled tDCS-sham. The sample will consist of 40 patients, divided into two groups with sham interventions and active crossover.

Detailed description

Check that the tDCS can modify the attentional response of patients with fibromyalgia. Methods: This study deals with a randomized, blind, crossover, controlled tDCS-sham. The sample will consist of 40 patients, divided into two groups with sham interventions and active crossover. Patients answer the questionnaires in order to verify the Psychological Factors and Clinical. Will use the Impact of Fibromyalgia (QIF), Pittsburgh Sleep Questionnaire, Conditioned Pain Modulation (CPM), Beck Depression Scale II, Catastrophic Scale , Go noGo Test, Attention Network Task (ANT) to verify the ability attentional as well as to verify the Near-infrared spectroscopy (NIRS) brain oxygenation. They will be used before, during and after the intervention with tDCS. Intervention with tDCS or sham will be held in a single session. Expected results: It is expected that fibromyalgia patients undergoing tDCS present, after the intervention, improved attention capacity .

Interventions

DEVICETranscranial Direct Current Stimulation

The intervention session with tDCS lasts for 20 minutes. tDCS uses rubber electrodes that are within sponges that are moistened with saline. These electrodes are placed on the participant's head. Through these electrodes will pass a weak electrical current that can at most cause mild itching at the site where the electrode is positioned. The generated electric current is equivalent to a small common battery that we use to run toys or radios. The procedure does not require that the patient be subjected to shocks, cuts or surgery. The participant will receive active tDCS or placebo, but receive both types of intervention during the performance of the two sessions.

Sponsors

Hospital de Clinicas de Porto Alegre
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Female patients, literate, right-handed, 18 to 65 years of age, who meet the criteria of the American College of Rheumatology (ACR) for fibromyalgia.

Exclusion criteria

* Pregnant women * Contraindications to tDCS * Metal implant in the brain * History of alcohol or drug abuse in the last six months * Suffer from severe depression (score\> 30 on the Beck Depression Inventory) * History of neurological disorders * Unexplained fainting * Self-reports of head injury or momentary loss of awareness * Neurosurgery. * Will also be excluded patients who have decompensated systemic diseases and / or chronic inflammatory diseases (ex .: lupus, rheumatoid arthritis).

Design outcomes

Primary

MeasureTime frame
Attention capacity after the intervention, assessed by the Attention Network Task4 months

Countries

Brazil

Contacts

Primary ContactAdriana F Silva, Msc
adrisilva@hcpa.ufrgs.br55 51 33598083

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026