Skip to content

EEG as Predictor of HD-tDCS Effectiveness in Long COVID-19

Predicting Outcomes From HD-tDCS Intervention in Long COVID-19 Using Electroencephalographic Biomarkers and Machine Learning Approach.

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05289128
Enrollment
30
Registered
2022-03-21
Start date
2022-02-07
Completion date
2022-07-31
Last updated
2022-03-21

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

Conditions

Coronavirus COVID-19, Respiratory Infection

Keywords

Transcranial direct current stimulation, Non-invasive brain stimulation, Electroencephalography, Machine Learning, COVID-19 Respiratory Infection, Long COVID

Brief summary

COVID-19 is an infectious disease which presents a heterogenous clinical presentation. Recent investigations suggest that people who were infected by COVID-19 often develop physical disabilities (i.e. pain, fatigue) and neurological complications after hospital discharge. Many therapeutic approaches such as transcranial direct current stimulation (tDCS) have been proposed to minimize functional and structural impairments. Electroencephalogram (EEG) has been used in this population to assess electrophysiological changes in the brain. However, evidences about EEG utilization as efficacy predictor of tDCS in COVID-19 people rest inconclusive.Our objective is to evaluate EEG as neurobiological predictor marker of tDCS efficacy on fatigue, pain, quality of life, self-efficacy and functional capacity in the chronic phase of COVID-19.

Detailed description

A double-blinded randomized clinical trial will be carried to analyse the EEG as neurobiological predictor marker of HD-tDCS 4x1 in patients in long COVID-19. This study is in accordance with the CONSORT guidelines, which will investigate the effectiveness of treatment with HD-tDCS. Patients who had a medical diagnosis of COVID-19, clinically stable, able to respond to simple commands, able to walk for six minutes and who sign study consent form will be enrolled. Those who present associated neurological diseases, pregnant, users of psychoactive drugs, patients who have metallic implants, electronic devices, pacemakers, or epileptic patients will be excluded. Patients will be allocated randomly to the experimental group or sham control. Sessions for experimental group consist of anodal HD-tDCS on Left diaphragmatic primary motor cortex associated to respiratory training (10 sessions, 3mA, 20 minutes/session). In the sham condition, the device provided a 30-second ramp-up period to the full 3 mA, followed immediately by a 30-second ramp down. Patients will be assessed in three moments: pre-treatment, post-treatment and after 30 days treatment ending (follow-up).

Interventions

DEVICEExperimental group

10-sessions of anodal HD-tDCS ( tDCS 1x1, developed by Soterix Medical Inc.) associated to respiratory training; for 20 minutes (each session). It will be delivered a 3mA intensity electrical current accordingly 10/20 International System on cortical representation zone of left diaphragmatic motor cortex using HD-tDCS.

DEVICESham Control

10-sessions of anodal HD-tDCS( tDCS 1x1, developed by Soterix Medical Inc.) associated to respiratory training; for 20 minutes (each session) with a 3mA intensity.The device will provide a 30-second ramp-up followed immediately by a 30-second ramp down.

Sponsors

Federal University of Paraíba
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Intervention model description

Parallel Assignment

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

Patients who had a medical diagnosis of COVID-19, clinically stable, able to respond to simple commands, able to walk for six minutes and who sign study consent form will be enrolled. Those who present associated neurological diseases, pregnant, users of psychoactive drugs, patients who have metallic implants, electronic devices, pacemakers, or epileptic patients will be excluded.

Design outcomes

Primary

MeasureTime frameDescription
Responders and non-responders to treatment with HD-tDCSFrom date of randomization up to 5 weeksIdentification of responders and non-responders according to the scores fatigue measured using MFIS-BR.

Secondary

MeasureTime frameDescription
Pain LevelFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Pain level will be evaluated through McGill questionnaire considering pain multifactorial characteristics.
Functional CapacityFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Functional capacity will be evaluated by Lawton and Brody scale and also by 6 minutes walking test.
Quality of LifeFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Quality of life will be measured through Brazilian version of World Health Organization Quality of Life.
Pulmonary FunctionFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)This outcome will be assessed through spirometry, assessment of maximal inspiratory pressure and respiratory endurance.
Neurophysiological characteristics and biomarkers recorded by EEGAssessed one week before intervention beginning (T0);The EEG data will be retrospectively examined by comparing the two groups (responders and non-responders), identifying possible neurophysiological characteristics and biomarkers related to frequency bands and connectivity that could be characterized as possible markers of response to treatment, predicting which ones are most likely to respond.
AnxietyFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Anxiety level will be evaluate through Hamilton Anxiety Rating Scale which measures the severity of anxiety symptoms.
DepressionFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Depression will be assessed by Beck's Depression Inventory.
Self-efficacyFrom date of randomization (1 week before intervention begining) up to 5 weeks (T1)Self-efficacy will be evalluated through the Self-efficacy manage chronic disease 6-item scale.
Body CompositionFrom date of randomization (1 week before intervention beginning ) up to 5 weeks (T1) and up to 10 weeks (T2; follow-up)Body composition analysis will be carried out by bioelectrical impedance analysis.

Countries

Brazil

Contacts

Primary ContactSuellen Andrade, Phd
suellenandrade@gmail.com986046032
Backup ContactKelly Santana
kjs.fisio@gmail.com11 910403928

Outcome results

None listed

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