- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05564715
Cognitive Outcomes of Brain Stimulation As a Later-in-Life Treatment (COBALT)
Study Overview
Status
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Texas
-
Dallas, Texas, United States, 75390
- Recruiting
- University of Texas Southwestern Medical Center
-
Principal Investigator:
- Christian LoBue, PhD
-
Sub-Investigator:
- Hsueh-Sheng Chiang, MD
-
Contact:
- Hannah Cabrera, MS
- Phone Number: 214-865-9508
- Email: Hannah.Cabrera@utsw.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Active diagnosis of mild cognitive impairment or dementia, Female and male subjects, All races/ethnicities, Age 55 years and older, Fluent in English,
Exclusion Criteria:
Lifetime history of major neurologic syndromes (e.g., epilepsy, brain tumor, etc), Substance use disorder within the past year, Has metal fragments in skull/head, Current vision or hearing impairment that interferes with testing, Current medication use known to alter HD-tDCS reactivity
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Phase 1: Active Treatment
Participants will receive 10 sessions of active stimulation (1 mA anodal HD-tDCS targeting preSMA/dACC for 20 min) across 2 weeks.
Word retrieval and other cognitive tasks will be completed at baseline, immediate follow-up after session 10, and a 2-month follow-up
|
10 sessions of active stimulation (1 mA anodal HD-tDCS targeting preSMA/dACC for 20 min) across 2 weeks
Other Names:
|
Sham Comparator: Phase 1: Sham Treatment
Participants will receive 10 sessions of sham stimulation across 2 weeks.
Word retrieval and other cognitive tasks will be completed at baseline, immediate follow-up after session 10, and a 2-month follow-up
|
Sham stimulation for 10 sessions over 2 weeks
|
Active Comparator: Phase 2: Active Treatment
For Phase 2, participants randomized into the sham group will have the opportunity to return after 2 months from completing Phase 1.
They will receive the active treatment while being unblinded to their treatment condition.
Following 10 active treatment sessions, word retrieval and other cognitive tasks will again be completed immediately following the last HD-tDCS session and then a 2-month follow-up.
|
10 sessions of active stimulation (1 mA anodal HD-tDCS targeting preSMA/dACC for 20 min) across 2 weeks
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in Rey Auditory Verbal Learning Test Score
Time Frame: Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
The RAVLT is a verbal episodic memory test that is sensitive to mesial and lateral verbal episodic memory circuit dysfunction. The primary outcome measure for this task is the total number of items immediately recalled during the learning trials and after the 20 minute delayed recall trial. Changes in scores from baseline to testing immediately following the completion of the condition will be examined as well as from baseline to 8 months post-treatment. RAVLT : Rey Auditory Verbal Learning Test, 0-15 score for each trial, higher scores reflect better performance |
Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in Delis Kaplan Executive Function System (DKEFS) Verbal Fluency Test
Time Frame: Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
The DKEFS Verbal Fluency Test is a measure of word retrieval. The task has 3 conditions each lasting 60 seconds, requiring the subject to name words by phonemes, semantic categories, and then switching between two semantic categories. The outcome measure for this task is the total words named for each of the 3 conditions. Changes in scores from baseline to testing immediately following the completion of each condition will be examined as well as from baseline to 8 months post-treatment. DKEFS: Delis-Kaplan Executive Function System Verbal Fluency Test, 0-no upper limit for each trial, higher scores reflect better performance |
Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
Changes in Boston Naming Test Short Form
Time Frame: Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
The Boston Naming Test Short Form has 30 pictures of common objects that upon seeing each picture, individuals need to name the object as soon as one can. The outcome measure for this task is the number of correctly named items. Changes in scores from baseline to testing immediately following the completion of condition will be examined as well as from baseline to 8 months post-treatment. BNT: Boston Naming Test - Short Form, 0-30 score, higher scores reflect better performance |
Pre-treatment, post-treatment (an average of 2 weeks), and 8 weeks post-treatment
|
Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- STU-2022-0799
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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.
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