Glymphatic Function TMS Study

Last updated: September 24, 2025
Sponsor: University of Arizona
Overall Status: Active - Not Recruiting

Phase

2

Condition

Alzheimer's Disease

Mild Cognitive Impairment

Memory Loss

Treatment

Transcranial Magnetic Stimulation

Clinical Study ID

NCT07192913
25103278
022713-00001
  • Ages 50-85
  • All Genders

Study Summary

The purpose of this study is to use transcranial magnetic stimulation (TMS) in older adults to impact the glymphatic system. The glymphatic system is a brain-wide clearance pathway that plays a crucial role in removing dysfunctional proteins in Alzheimer's disease. This project aims to investigate if TMS can help glymphatic function and reduce levels of these proteins in those with mild cognitive impairment.

Eligibility Criteria

Inclusion

Inclusion Criteria:

Individuals with mild cognitive impairment (MCI Group)

Inclusion Criteria:

  • Age 18-85 years

  • MCI subjective criteria: self- or informant-reported cognitive complaint

  • Objective cognitive impairment supported by one of the following measures of generalcognitive function: (a) classified as MCI via the NACC-UDS 3.0 neuropsychologicalbattery using the typical neuropsychological criteria for MCI diagnosis (1 score onany test at least1.5 SD below the mean); or (b) classified as MCI via the NACC-UDS 3.0 neuropsychological battery using the Jak/Bondi neuropsychological criteria forMCI diagnosis(2 scores at least 1 SD below the mean in one domain, or 3 scores atleast 1SD below the mean across domains)

  • Right-handed

  • English speaking

  • Able to attend daily intervention and outcome measurements for ~15 days over a 6month period.

  • Not enrolled in another interventional study within 6 months prior to beginning thisstudy

Exclusion

Exclusion Criteria:

  • Contraindications to transcranial magnetic stimulation (TMS) or magnetic resonanceimaging (MRI)

  • Reported sudden or steep decline of cognitive performance

  • Telephone Interview for cognitive impairment (TICS) score

  • Other neurological disorders (e.g., stroke, head injuries, or multiple sclerosis)

  • Psychiatric disorder (except stable late-life depression due to its high prevalencein MCI individuals)

  • Current cancer treatment or other comorbid/unstable medical conditions that mightindependently affect cognitive function

Study Design

Total Participants: 20
Treatment Group(s): 1
Primary Treatment: Transcranial Magnetic Stimulation
Phase: 2
Study Start date:
October 01, 2025
Estimated Completion Date:
July 31, 2026