Study on the Effect of Transcranial Magnetic Stimulation in Mild to Moderate Alzheimer's Disease

February 5, 2020 updated by: Duk Lyul Na, Samsung Medical Center

Prospective, Randomized, Evaluator-blind, Single Center Study on the Effect of Transcranial Magnetic Stimulation in Mild to Moderate Alzheimer's Disease

The investigators will compare cognitition, mood (depression), ADL, and brain structural and functional MRI before and after 4-week transcranial magnetic stimulation in patients with mild to moderate Alzheimer's disease.

The investigators also compare the change of cognitition, mood (depression), ADL, and brain structural and functional MRI between TMS group and sham coil group.

Study Overview

Detailed Description

Each 16 patients will be allocated to TMS group and sham coil group. Before TMS/sham coil stimulation, the investigators will take fMRI of each patient, and figure out which focus has strongest connectivity to hippocampus among lateral parietal regions of the brain. The investigators will fix the TSM transduced and apply accurate TMS stimulation to the focus using personalized frames. The investigators will make the frame using 3D printing technology.

After 4 week- TMS stimulation, the investigators will compare cognitition, mood (depression), ADL, and brain structural and functional MRI beween baseline and after intervention. The investigators also compare the change of cognitition, mood (depression), ADL, and brain structural and functional MRI between TMS group and sham coil group.

Study Type

Interventional

Enrollment (Anticipated)

32

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

55 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients who visited memory clinic of Samsung Medical Center
  • aged 55 ~ 90
  • diagnosed as probable Alzheimer dementia according to NIA-AA guideline 2011, or MCI patiens with amyloid PET positivity
  • below -1SD in SVLTdelayed recall test and RCFT delayed recall test
  • K-MMSE >=18
  • no epileptic discharge in EEG
  • no history of epilepsy
  • no arrhythmia or MI in ECG
  • can read and write Korean (literate)
  • volunteer and agree to the registration

Exclusion Criteria:

  • no other neurologic deficit which can cause dementia except for Alzheimer's disease
  • paitient who has severe cerebral white matter hyperintensities. (deep white matter >=2.5cm and caps or band >=1.0 cm)
  • patients with severe medical disease including caner and ishemic heart disease
  • claustrophobia or allergic to contrast of MRI
  • medical deviced which is not removable (e.g pacemaker, cochlear implantation, dental prosthesis)
  • history of brain surgery, and intervension or surgery of intra/extracranial artery(e.g. carotid artery stent insertion, CEA)
  • patient with dyspnea during resting
  • history of loss of consciousness for more than 1 hour except for general anesthesia
  • patients who cannot read written material because of poor visual acuity
  • patients who cannot communicate because of severe hearing difficulty
  • history of ototoxicity medication or exposure severe noises
  • determined as inapropriate to participate clinical trial

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: TMS group
Transcranial magnetic stimulation for four weeks
  • stimulation intensity : motor threshold 100%
  • stimulation frequency : 1600 pulses for 20 minutes
  • stimulation duration :for four weaks, 20 minutes/day, 5 days per week (Monday - Friday )
Sham Comparator: Sham group
sham coil stimulation for four weeks (Although the sound of sham coil is the same to that of real TMS during intervension, no stimulation is applied. )
no stimulation Although the sound from device during stimulation is similar, no stimulation is applied.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the short term change of K-MMSE score in TMS group
Time Frame: 4 weeks
the short term change of K-MMSE (Korean version of mini mental status exam) score in TMS group
4 weeks
the short term change of K-MoCA score in TMS group
Time Frame: 4 weeks
the short term change of K-MoCA (Korean version of Montreal cognitive assessment) score in TMS group
4 weeks
the short term change of ADAS-Cog score in TMS group
Time Frame: 4 weeks
the short term change of ADAS-Cog(the Alzheimer's disease assessment scale-cognitive subscale) score in TMS group
4 weeks
the short term change of COWAT score in TMS group
Time Frame: 4 weeks
the short term change of COWAT(controlled oral word association) score in TMS group
4 weeks
the short term change of Stroop score in TMS group
Time Frame: 4 weeks
the short term change of Stroop score in TMS group
4 weeks
the short term change of TMT score in TMS group
Time Frame: 4 weeks
the short term change of TMT(trail-making test) score in TMS group
4 weeks
the short term change of RVP score in TMS group
Time Frame: 4 weeks
the short term change of RVP(raid visual information processing) score in TMS group
4 weeks
the short term change of SWM score in TMS group
Time Frame: 4 weeks
the short term change of SWM (spatial working memory) score in TMS group
4 weeks
the short term change of PRM score in TMS group
Time Frame: 4 weeks
the short term change of PRM(pattern recognition memory) score in TMS group
4 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
the long term change of K-MMSE score in TMS group
Time Frame: 8 weeks
the long term change of K-MMSE (Korean version of mini mental status exam) score in TMS group
8 weeks
the long term change of K-MoCA score in TMS group
Time Frame: 8 weeks
the long term change of K-MoCA (Korean version of Montreal cognitive assessment) score in TMS group
8 weeks
the long term change of ADAS-Cog score in TMS group
Time Frame: 8 weeks
the long term change of ADAS-Cog(the Alzheimer's disease assessment scale-cognitive subscale) score in TMS group
8 weeks
the long term change of COWAT score in TMS group
Time Frame: 8 weeks
the long term change of COWAT(controlled oral word association) score in TMS group
8 weeks
the long term change of Stroop score in TMS group
Time Frame: 8 weeks
the long term change of Stroop score in TMS group
8 weeks
the long term change of TMT score in TMS group
Time Frame: 8 weeks
the long term change of TMT(trail-making test) score in TMS group
8 weeks
the long term change of RVP score in TMS group
Time Frame: 8 weeks
the long term change of RVP(raid visual information processing) score in TMS group
8 weeks
the long term change of SWM score in TMS group
Time Frame: 8 weeks
the long term change of SWM (spatial working memory) score in TMS group
8 weeks
the long term change of PRM score in TMS
Time Frame: 8 weeks
the long term change of PRM(pattern recognition memory) score in TMS group
8 weeks
the change of ADL(activity of daily life) in TMS group
Time Frame: 4 weeks
the score change of S-IADL(Seoul-Instrumental activities of daily life)
4 weeks
the short term change of mood (depression) in TMS group
Time Frame: 4 weeks
the score change of GDS(geriatric depression scale) short form
4 weeks
the long term change of mood (depression) in TMS group
Time Frame: 8 weeks
the score change of GDS(geriatric depression scale) short form
8 weeks
the change of brain function in TMS group
Time Frame: 4 weeks
the qualititve change of resting functional MRI
4 weeks
the change of brain structure in TMS group
Time Frame: 4 weeks
the change of FA (fractional anisotropy) value in DTI (diffusion tensor imaging) analysis
4 weeks
the comparison of short term change of K-MMSE score between TMS group and sham group
Time Frame: 4 weeks
the score change of K-MMSE (Korean version of mini mental status exam)
4 weeks
the comparison of short term change of K-MoCA score between TMS group and sham group
Time Frame: 4 weeks
the score change of K-MoCA (Korean version of Montreal cognitive assessment)
4 weeks
the comparison of short term change of CDR-SOB between TMS group and sham group
Time Frame: 4 weeks
the score change of CDR-SOB (Clinical dementia rating-sum of boxes)
4 weeks
the comparison of short term change of ADAS-Cog between TMS group and sham group
Time Frame: 4 weeks
the score change of ADAS-Cog ( the Alzheimer's disease assessment scale-cognitive subscale)
4 weeks
the comparison of short term change of COWAT score between TMS group and sham group
Time Frame: 4 weeks
the score change of COWAT(controlled oral word association) score
4 weeks
the comparison of short term change of Stroop test score between TMS group and sham group
Time Frame: 4 weeks
the score change of Stroop test score
4 weeks
the comparison of short term change of TMT between TMS group and sham group
Time Frame: 4 weeks
the score change of TMT (trail making test)
4 weeks
the comparison of short term change of RVP score between TMS group and sham group
Time Frame: 4 weeks
the score change of RVP(raid visual information processing) score
4 weeks
the comparison of short term change of SWM between TMS group and sham group
Time Frame: 4 weeks
the score change of SWM (spatial working memory) score
4 weeks
the comparison of short term change of PRM between TMS group and sham group
Time Frame: 4 weeks
the score change of PRM(pattern recognition memory) score
4 weeks
the comparison of change of K-MMSE between TMS group and sham group
Time Frame: 8 weeks
the score change of K-MMSE(Korean version of mini mental status exam)
8 weeks
the comparison of long term change of K-MoCA between TMS group and sham group
Time Frame: 8 weeks
the score change of K-MoCA (Korean version of Montreal cognitive assessment)
8 weeks
the comparison of long term change of CDR-SOB between TMS group and sham group
Time Frame: 8 weeks
the score change of CDR-SOB(Clinical dementia rating-sum of boxes)
8 weeks
the comparison of long term change of ADAS-Cog between TMS group and sham group
Time Frame: 8 weeks
the score change of ADAS-Cog ( the Alzheimer's disease assessment scale-cognitive subscale)
8 weeks
the comparison of long term change of COWAT score between TMS group and sham group
Time Frame: 8 weeks
the score change of COWAT(controlled oral word association) score
8 weeks
the comparison of long term change of stroop test score between TMS group and sham group
Time Frame: 8 weeks
the score change of stroop test score
8 weeks
the comparison of long term change of TMT score between TMS group and sham group
Time Frame: 8 weeks
the score change of TMT(trail making test)
8 weeks
the comparison of long term change of RVP score between TMS group and sham group
Time Frame: 8 weeks
the score change of RVP(raid visual information processing)
8 weeks
the comparison of long term change of SWM score between TMS group and sham group
Time Frame: 8 weeks
the score change of SWM (spatial working memory) score
8 weeks
the comparison of long term change of cognitive function between TMS group and sham group
Time Frame: 8 weeks
the score change of PRM(pattern recognition memory) score
8 weeks
the comparison of short term change of mood (depression) between TMS group and sham group
Time Frame: 4 weeks
the score change of GDS (geriatric depression scale) short form
4 weeks
the comparison of long term change of mood (depression) between TMS group and sham group
Time Frame: 8 weeks
the score change of GDS (geriatric depression scale) short form
8 weeks
the comparison of short term change of ADL between TMS group and sham group
Time Frame: 4 weeks
the score change of S-IADL(Seoul instrumental activity of daily life )
4 weeks
the comparison of long term change of ADL between TMS group and sham group
Time Frame: 8 weeks
the score change of S-IADL(Seoul instrumental activity of daily life )
8 weeks
the comparison of change of resting fMRI between TMS group and sham group
Time Frame: 4 weeks
the qualititve change of resting fMRI
4 weeks
the comparison of change of FA value between TMS group and sham group
Time Frame: 4 weeks
the change of FA(fractional anisotropy) value in DTI(diffusion tensor imaging) analysis
4 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Duk L Na, MD PhD, Samsung Medical Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Anticipated)

February 7, 2020

Primary Completion (Anticipated)

February 7, 2021

Study Completion (Anticipated)

February 7, 2022

Study Registration Dates

First Submitted

January 22, 2020

First Submitted That Met QC Criteria

February 5, 2020

First Posted (Actual)

February 7, 2020

Study Record Updates

Last Update Posted (Actual)

February 7, 2020

Last Update Submitted That Met QC Criteria

February 5, 2020

Last Verified

February 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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