NCT06581458

Brief Summary

  1. 1.To examine the effect of a two-week tDCS intervention of 3 months of continued tDCS intervention versus 3 months of receiving a placebo treatment (dummy). On the costs of performing an action task (dual task cost) walking speed, cognitive measures and motor function.
  2. 2.To examine whether the effects of tDCS build up over time by creating a delayed start mechanism in the intervention (delayed-start design)
  3. 3.Examining mechanical and neuroplastic effects of tDCS intervention
  4. 4.To examine the response to tDCS over time

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
64

participants targeted

Target at P50-P75 for not_applicable

Timeline
4mo left

Started Sep 2024

Typical duration for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress84%
Sep 2024Sep 2026

First Submitted

Initial submission to the registry

July 3, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2024

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 3, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Last Updated

September 3, 2024

Status Verified

August 1, 2024

Enrollment Period

2 years

First QC Date

July 3, 2024

Last Update Submit

August 26, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Accuracy in Serial Subtractions Task

    articipants will perform serial subtractions from a random 3-digit number between 200 and 999. Accuracy will be measured as the percentage of correct subtractions.

    45-second

  • Usual walk

    fNIRS with walking trial 20m indoor course with 180-degree turns at each end and an instrumented gait mat in the middle.

    45-second

  • Walk with the cognitive task (DT)

    fNIRS with walking trial 20m indoor course with 180-degree turns at each end and an instrumented gait mat in the middle.

    45-second

Secondary Outcomes (24)

  • Mobility - SPPB (Short Physical Performance Battery)

    9 months

  • Mobility - 4 m Gait Test

    9 months

  • Mobility - Falls Efficacy Scale-International (FES-I)

    9 months

  • Mobility - Habitual Physical Activity and Real-World Gait

    9 months

  • Mood- Geriatric Depression Scale (GDS

    9 months

  • +19 more secondary outcomes

Study Arms (2)

tDCS immediate intervention group

EXPERIMENTAL

Participants in the tDCS Immediate Intervention Group will receive an initial two-week period of transcranial Direct Current Stimulation (tDCS) treatment. This will be followed by three months of continued tDCS intervention.

Drug: tDCS

Late intervention group (tDCS+ sham)

SHAM COMPARATOR

Participants in the Late Intervention Group will first receive a placebo (sham) treatment for three months. This will be followed by a two-week period of active transcranial Direct Current Stimulation (tDCS) treatment, then three months of continued tDCS intervention.

Drug: tDCS

Interventions

tDCSDRUG

The immediate intervention group will continue to receive five tDCS treatments per week for 6 months. The late intervention group will receive five sham treatments per week for 3 months and then begin receiving five weekly tDCS treatments for an additional 3 months.

Late intervention group (tDCS+ sham)tDCS immediate intervention group

Eligibility Criteria

Age65 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • Age 65-90
  • Cognitive complaints
  • A positive answer to the question "Do you feel you have more problems than most people?"
  • A negative answer to the question "Is your thinking as clear and sharp as it was before?"
  • Slow walking - one standard deviation below the average for age and gender (under age 75: men less than 101.9 cm/s, women less than 97.4 cm/s. Over or equal to age 75: men less than 85.3 s) m/s women less than 76.7 cm/s)
  • No significant disability
  • There is the ability to walk without support on a walking carpet
  • A result below 9 in the Functional Activities Questionnaire index
  • Identification as qualified
  • Identification as willing and able to operate a tDCS device or have a partner who is able to operate the device during home use. According to the criteria:

You may not qualify if:

  • Has access to a reliable wireless internet network (WiFi) at the patient's home
  • Less than eight years of study
  • dementia
  • According to the clinical definition clinical dementia rationing (CDR) score 1 or higher
  • Previous diagnosis
  • Performance in the range indicating dementia in the neuropsychological test bettery (lower than 2 standard deviations below the age- and sex-matched average)
  • IQ is low or equal to 85 in the WTAR test. without a background of mental disability
  • Current diagnosis of major psychiatric disorders (schizophrenia, bipolar, major depression)
  • Evidence of moderate to severe symptoms of depression. A score high or equal to 9 on the 15 item geriatric depression scale
  • History of head injury that led to prolonged loss of consciousness
  • History of palpitations of unknown origin that may indicate convulsions
  • History of convulsions, diagnosis of epilepsy in the patient or in most of the first degree family. Except for a case of a single seizure of benign etiology determined by a neurologist
  • Hospitalization during the last three months following an acute illness or musculoskeletal injury with a significant impact on walking or stability
  • An unbalanced medical condition that can worsen following convulsive stimulation (cardiac malformation, cardiac arrhythmias, asthma, etc.)
  • Substance use disorders during the last six months
  • +12 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Transcranial Direct Current Stimulation

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsConvulsive TherapyPsychiatric Somatic TherapiesBehavioral Disciplines and ActivitiesElectroshockPsychological Techniques

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
CROSSOVER
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 3, 2024

First Posted

September 3, 2024

Study Start

September 1, 2024

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Last Updated

September 3, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share