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NCT Number: NCT05509387

Investigating if a Stronger tDCS Intensity is More Effective for Improving Naming Ability in People Living With Alzheimer's Disease

There is currently little symptomatic therapy for Alzheimer's Disease (AD) and nothing effective for individuals with Frontotemporal dementia (FTD). However, neuromodulation with transcranial direct current stimulation (tDCS) has the potential to be a clinically effective therapy for both AD and FTD. The challenge now is to specify the parameters and conditions under which tDCS is most effective to transition from the laboratory to clinical medicine. tDCS studies typically report significant group effects despite the variability demonstrated among participants, with some showing clear, meaningful improvement, while others only show statistical improvement or none at all. These variable results may be related to the conventional stimulation intensity level of 2mA. The investigators predict that administering tDCS at 4.0 mA, a more significant number of participants would show a meaningful response, and those who improve at 2mA may improve even more from 4.0mA due to having a larger electric field produced. The investigators aim to test this hypothesis in people with Alzheimer's Disease.

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Key information

Conditions

Alzheimer Disease Brain Diseases Central Nervous System Diseases Dementia Mental Disorders Nervous System Diseases Neurocognitive Disorders Neurodegenerative Diseases Tauopathies

Age range

50 year–90 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Mild to Moderate AD
  • Score between 18 and 25 on the MoCA
  • Score on the Cambridge Naming Task during the pre-assessment

Exclusion criteria

  • No history of stroke or TBI
  • No shunts or metal in the body
  • No history of significant heart disease, alcoholism and drug use

Treatment and study plan

transcranial direct current stimulation and naming training

Device

Participants will receive mild stimulation or no stimulation along with naming training

Primary outcomes

  1. Naming Training

    Time frame: 3 months

    The primary outcome measure will be change on the naming lists administered, both a trained version and an untrained version. This change will be measured in terms of the number of images correctly named post-training compared to baseline

Study contacts

Contact information is provided by the study sponsor or research team.

Carlos Roncero, PhD

CONTACT

[email protected]

Sponsors and collaborators

Lead sponsor

Baycrest

Other

Collaborators

  • Alzheimer's Society

Registry information

Important dates

Study start
2022
Primary completion
2025
Study completion
2026
First posted
Aug 22, 2022
Registry last updated
Aug 13, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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