The Efficacy of Non-invasive Brain Stimulation on Cognitive Functions in Patients With Chronic Obstructive Pulmonary Disease: Double-Blinded Randomised Controlled Trial

NCT ID: NCT07332169

Last Updated: 2026-01-12

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

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-20

Study Completion Date

2028-11-30

Brief Summary

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The goal of this clinical trial is to examine if non-invasive brain stimulation (NIBS) can enhance cognitive function with chronic obstructive pulmonary disease (COPD) population. The main questions it aims to answer are:

* What is the possibility effect of using the NIBS on cognitive functions as well as the cardiopulmonary parameters in COPD population?
* What is the relation between cognitive function parameters and cardiopulmonary parameters in COPD population who suffer from cognitive impairment (CI)? Researchers will compare NIBS to a sham-NIBS to see if NIBS works to improve cognitive function in COPD population.

Participants will:

Receive NIBS or a sham-NIBS 5 sessions/week for 3 weeks for 20 min each session.

Visit the clinic at the beginning for baseline assessment then after the completion of the 3 weeks to reassess them.

Outcome measures for cognitive parameters and pulmonary parameters will be taken pre and post NIBS intervention

Detailed Description

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* With over 3.2 million fatalities worldwide, chronic obstructive pulmonary disease (COPD) is considered the third most common cause of mortality and a potentially fatal illness.
* Due to anomalies in the lung architecture, COPD is characterised by a variety of respiratory symptoms.
* Cognitive impairment (CI) is one of the problems caused by COPD that extends beyond the respiratory system.
* The quality of life, treatment compliance, and declines in the condition of COPD patients were all negatively impacted by CI.
* As of right now, no intervention has been promised to improve CI in patients with COPD.

Objective:

To find out how well non-invasive brain stimulation (NIBS), a novel technique, affects cognitive performance in COPD patients

Methods:

* Both the participants and the outcome assessor will be in a double-blind RCT.
* King Fahad University Hospital will be the source of the entirely voluntary participants.
* The IRB of the Imam Abdulrahman bin Faisal institutions accepted the study protocol.
* Following an evaluation using the Montreal Cognitive Assessment Test (MoCA), participants will be divided into four groups based on GOLD: mild GOLD 1, moderate GOLD 2, severe GOLD 3, and very severe GOLD 4.
* For three weeks, both groups will participate in five NIBS sessions per week. While the control group will receive sham brain stimulation, the experimental group will receive active brain stimulation.
* Both groups will undergo the evaluation before and after the treatment sessions.
* Primary outcome measurements are battery cognition tests; secondary measures include ABGs, ultrasonography, and cardiopulmonary exercise tests.
* Independent t-tests will be applied to evaluate the differences between the two groups.
* The study will use a two-way repeated measures Analysis of Variance (ANOVA) to determine the intervention's efficacy.
* The association between the improvement of cognitive function and certain factors will be ascertained via the Pearson correlation coefficient.
* The significance level will be set at a p-value of less than 0.05.

Significant:

* We hope that the findings of this study will serve as a helpful guide when deciding how to improve CI in patients with COPD and enhance the treatment strategy for this group.
* The findings of this study will investigate whether NIBS, which is beneficial in another population, can enhance cognitive function in individuals with COPD.

Conditions

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COPD COPD (Chronic Obstructive Pulmonary Disease) Cognitive Impairment (CI) Non-invasive Brain Stimulation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Two groups included: One group will receive the non-invasive brain stimulation, and the other group will receive sham non-invasive brain stimulation.
Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Non-invasive brain stimulation

Sinusoidal current used between two electrodes on the dorsolateral prefrontal cortex (DLPFC) area. - Gamma-Transcranial Alternating Current Stimulation (tACS) of 2 mA at 40 Hz will be given to the experimental group. - Session duration will last 20 minutes, of 5 session/week, for 3weeks.

Group Type EXPERIMENTAL

Non-invasive brain stimulation

Intervention Type DEVICE

Non-invasive brain stimulation (NIBS) modifies brain activity without surgery using electric currents. - Transcranial alternating current stimulation (tACS) is one type of NIBS that modifies neuronal oscillations in the brain by applying alternating electrical currents to the scalp through electrodes. - This method can enhance motor abilities, improve cognitive functions, and be used in rehabilitation. - It does this by entraining neurones, which synchronise their firing to the applied sinusoidal frequency. Gamma-Transcranial Alternating Current Stimulation (tACS) of 2 mA at 40 Hz will be given to the experimental group.

Sham Non-invasive brain stimulation

Sinusoidal current used between two electrodes on the dorsolateral prefrontal cortex (DLPFC) area. - To maintain this stimulation's indistinguishability from the experimental stimulation, the control group will be given an electric current that ramps down 60 seconds after the stimulation begins. - Session duration will last 20 minutes, of 5 session/week, for 3weeks.

Group Type SHAM_COMPARATOR

Sham Non-Invasive brain stimulation

Intervention Type DEVICE

Non-invasive brain stimulation (NIBS) modifies brain activity without surgery using electric currents. - Transcranial alternating current stimulation (tACS) is one type of NIBS that modifies neuronal oscillations in the brain by applying alternating electrical currents to the scalp through electrodes. - This method can enhance motor abilities, improve cognitive functions, and be used in rehabilitation. - It does this by entraining neurones, which synchronise their firing to the applied sinusoidal frequency. The electric current used as ramps down 60 seconds after the stimulation begins.

Interventions

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Non-invasive brain stimulation

Non-invasive brain stimulation (NIBS) modifies brain activity without surgery using electric currents. - Transcranial alternating current stimulation (tACS) is one type of NIBS that modifies neuronal oscillations in the brain by applying alternating electrical currents to the scalp through electrodes. - This method can enhance motor abilities, improve cognitive functions, and be used in rehabilitation. - It does this by entraining neurones, which synchronise their firing to the applied sinusoidal frequency. Gamma-Transcranial Alternating Current Stimulation (tACS) of 2 mA at 40 Hz will be given to the experimental group.

Intervention Type DEVICE

Sham Non-Invasive brain stimulation

Non-invasive brain stimulation (NIBS) modifies brain activity without surgery using electric currents. - Transcranial alternating current stimulation (tACS) is one type of NIBS that modifies neuronal oscillations in the brain by applying alternating electrical currents to the scalp through electrodes. - This method can enhance motor abilities, improve cognitive functions, and be used in rehabilitation. - It does this by entraining neurones, which synchronise their firing to the applied sinusoidal frequency. The electric current used as ramps down 60 seconds after the stimulation begins.

Intervention Type DEVICE

Other Intervention Names

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NIBS NIBS

Eligibility Criteria

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Inclusion Criteria

* Adult age from eighteen years old and above.
* Patients with confirmed COPD via pulmonary function test (PFT) according to the classifications of GOLD.
* All stages of GOLD will be included
* Stable patients, which means they were not admitted to the hospital in the last 3 months
* Patients with COPD with confirmed cognitive impairment by MoCA test.
* All MoCA stages will be included.

Exclusion Criteria

* Patients without COPD
* Unstable patients with several admission in the last 3 months
* Patients with COPD but without cognitive impairment.
* COPD patients who suffered from any neurological problems
* COPD patients who are contraindicated for using brain stimulation like psychiatric disorders.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Imam Abdulrahman Bin Faisal University

OTHER

Sponsor Role collaborator

Shahad Abdulrahman Alkandari

OTHER_GOV

Sponsor Role lead

Responsible Party

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Shahad Abdulrahman Alkandari

Shahad Alkandari MSc, PT.

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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Imam Abdulrahman Bin Faisal University

Dammam, , Saudi Arabia

Site Status

Countries

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Saudi Arabia

Central Contacts

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Shahad Alkandari, Master's degree

Role: CONTACT

+96597533309

Facility Contacts

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Shahad Alkandari, Master's degree

Role: primary

+96597533309

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Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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IRB-PGS-2025-03-0553

Identifier Type: OTHER

Identifier Source: secondary_id

IRB-PGS-2025-03-0600

Identifier Type: -

Identifier Source: org_study_id

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