NCT05967390

Brief Summary

Scalp to cortex distance (SCD), as a key technological parameter of brain stimulation, has been highlighted in the guidelines of non-invasive brain stimulation. However, in the context of age-related brain changes, the region-specific SCD and its impact on stimulation-induced electric field in different types of neurodegenerative diseases remain unclear.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
488

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2023

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

First Submitted

Initial submission to the registry

June 15, 2023

Completed
Same day until next milestone

Study Start

First participant enrolled

June 15, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

August 1, 2023

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 14, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 14, 2025

Completed
Last Updated

January 14, 2025

Status Verified

January 1, 2025

Enrollment Period

1.5 years

First QC Date

June 15, 2023

Last Update Submit

January 11, 2025

Conditions

Keywords

AgingScalp-to-cortex distanceTranscranial brain stimulationParkinson diseaseSimulationPredictor

Outcome Measures

Primary Outcomes (1)

  • Scalp-to-cortex distance will be measured using geometric brain model

    Scalp-to-cortex distance (SCD), as a geometric feature, will measured in the Brainsight TMS neuronavigation system.

    Baseline

Study Arms (1)

Neurocognitive disorder (NCD)

The NCD patients are defined with a chronological age over 60 years and a Montreal Cognitive Assessment (MoCA) total score between 22 and 26.

Device: Transcranial Magnetic Stimulation

Interventions

One time for each day, lasting for three weeks.

Neurocognitive disorder (NCD)

Eligibility Criteria

Age60 Years - 95 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Healthy normal ageing adults and adults with neurocognitive disorders

You may qualify if:

  • Right-handed as assessed by the Edinburgh Inventory
  • Able to attend TMS interventions
  • Consent
  • Independent in daily life activities

You may not qualify if:

  • Uncorrected visual or auditive deficits not allowing the realization of the test
  • Evolutive disease (such as cancer)
  • Neurological or psychiatric antecedent
  • Counter-indication to MRI

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tai Po Hospital

Hong Kong, Hong Kong

Location

MeSH Terms

Conditions

Alzheimer DiseaseParkinson DiseasePick Disease of the Brain

Interventions

Transcranial Magnetic Stimulation

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersParkinsonian DisordersBasal Ganglia DiseasesMovement DisordersSynucleinopathiesFrontotemporal DementiaFrontotemporal Lobar Degeneration

Intervention Hierarchy (Ancestors)

Magnetic Field TherapyTherapeutics

Study Officials

  • Hanna LU, PhD

    Chinese University of Hong Kong

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 15, 2023

First Posted

August 1, 2023

Study Start

June 15, 2023

Primary Completion

December 14, 2024

Study Completion

June 14, 2025

Last Updated

January 14, 2025

Record last verified: 2025-01

Locations