Gamma-Music Based Intervention for Mild Alzheimer's Disease (NUGammaMBI)

The study will test and refine a novel brain-stimulation tool using gamma-frequency lights coupled with self-selected music for a gamma-music-based intervention for participants with mild Alzheimer's Disease. Results will yield a gamma-stimulation protocol that reliably influences brain activity (Aim 1), is adaptive, motivating and rewarding to use (Aim 2), and will generate predictions as to who might benefit the most from gamma-MBI (Aim 3). By bridging the gap between neurostimulation and behavioral intervention by combining music therapy with gamma- band neurostimulation, the present project aims to find a sustainable intervention that delays the progression of AD.

Study Overview

• Status: Recruiting
• Conditions: Alzheimer Disease
• Intervention / Treatment: Behavioral: Gamma-Music Based Intervention

Detailed Description

Alzheimer's Disease (AD) is characterized by cognitive deficits such as memory loss, as well as deficits in the motivation that drives daily activities. These cognitive and motivational deficits are linked to widespread neuronal and synaptic atrophy, coupled with aggregated extracellular Aβ-plaque and tau deposits, and atypical neural activity across multiple frequencies. Recent work in mouse models of AD have shown that inducing gamma oscillations with a non-invasive gamma-frequency (40 Hz) light-flickering and auditory tone-stimulation regimes reduced Aβ plaques and improved spatial and recognition memory. In humans, restoring gamma-frequency activity while preserving its phase-amplitude coupling with theta-band activity are shown to recover human memory performance in older adults, and in patients with mild AD, thus offering a promising route towards a novel therapy that can prevent brain atrophy while improving cognition. Despite their recent successes, it is a major challenge to translate gamma-frequency neurostimulation from a laboratory study to a behavioral intervention. The goal is to promote healthy neurocognitive aging using lifestyle interventions; in particular, interventions that sustainably elevate mood and reward motivated behavior while encouraging social bonding may be most promising in slowing the progression of AD. Music listening engages multiple brain networks involved in sensory processing, movement, language, attention, learning and memory, emotion and reward, and social connectedness. Music-Based Interventions (MBIs) have the potential to manage symptoms, slow disease progression, and improve quality of life. This study will test a novel protocol for music-based brain stimulation, gamma-MBI: gamma-light stimulation that automatically adapts to music-based intervention. Harnessing the fact that music listening is an intrinsically rewarding activity, the study uses music as a carrier for gamma sensory stimulation. As music contains theta-band acoustic energy, music listening is a form of theta- band noninvasive brain stimulation. A novel brain-stimulation tool will be tested using gamma-frequency lights coupled with self-selected music for a gamma-music-based intervention for participants with mild Alzheimer's Disease. Results will yield a gamma-stimulation protocol that reliably influences brain activity (Aim 1), is adaptive, motivating and rewarding to use (Aim 2), and will generate predictions as to who might benefit the most from gamma-MBI (Aim 3). By bridging the gap between neurostimulation and behavioral intervention by combining music therapy with gamma-band neurostimulation, the present project aims to find a sustainable intervention that delays the progression of AD.

• Study Type: Interventional
• Enrollment (Estimated): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Massachusetts
    • Boston, Massachusetts, United States, 02115
      • Recruiting
      • Northeastern University
      • Principal Investigator: Psyche Loui, PhD
      • Contact: Eva Wu; Phone Number: 781-474-3141; Email: xi.wu@northeastern.edu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Mild AD participants will be ages 55-90, amnestic (single or multiple domain) who perform below an education- adjusted cut-off score on the Logical Memory II subscale delayed paragraph recall of the Wechsler Memory Scale-Revised (WMS-R LM-IIa) (Wechsler 1987) (≥16 years: ≤8; 8-15 years: ≤4; 0-7 years: ≤2), have a CDR global score of 0.5 (with a memory box score of 0.5 or 1), have an MMSE score of 20-24, and have preserved instrumental activities of daily living (ADL) as determined by the Alzheimer's Disease Cooperative Study ADL Prevention Instrument (ADCS ADL-PI). All participants will be medically stable. Participants will not have significant cerebrovascular disease determined by history of stroke, and will have a Modified Hachinski Ischemic score (Rosen et al. 1980) of ≤ 4. Participants will not have significant psychiatric disorders including a Geriatric Depression Scale (long form) (Yesavage et al. 1982) of ≤10, and will not have a history of substance or alcohol abuse. All participants must be on stable doses of any medications with psychotropic effects (including cholinesterase inhibitors, memantine, and antidepressants) for at least 3 months prior to randomization. Participants will be screened to be amyloid positive via plasma test. They must also have no contraindications to MRI scanning, and will have a study partner who is able to provide collateral information about the participant. A pure tone audiogram will be administered to ensure that participants have no more than mild levels of hearing loss (<40dB). If a subject fails audiometric screening, they will be excluded from the study and provided with a list of audiologists. An Institutional Review Board (IRB) approved telephone screen will be used for demographic information, study inclusion/exclusion criteria and MRI contraindications. Participants will complete an MRI screening questionnaire before each MRI session.

Study Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Gamma; 8-week music-based intervention with gamma lights	Behavioral: Gamma-Music Based Intervention; Gamma or Control lights with Music-Based Intervention for 8 week period
Placebo Comparator: Control; 8-week music-based intervention with control lights	Behavioral: Gamma-Music Based Intervention; Gamma or Control lights with Music-Based Intervention for 8 week period

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
EEG activity	Gamma-band EEG activity	1 hour

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
ADAS-Cog 14	cognitive component of iADRS	8 weeks

Collaborators and Investigators

• Sponsor: Northeastern University

Study record dates

Study Major Dates

• Study Start (Actual): July 1, 2022
• Primary Completion (Estimated): June 30, 2027
• Study Completion (Estimated): June 30, 2027

Study Registration Dates

• First Submitted: June 16, 2023
• First Submitted That Met QC Criteria: August 1, 2023
• First Posted (Actual): August 9, 2023

Study Record Updates

• Last Update Posted (Actual): October 6, 2023
• Last Update Submitted That Met QC Criteria: October 4, 2023
• Last Verified: October 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Mental Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Neurocognitive Disorders; Neurodegenerative Diseases; Dementia; Tauopathies; Alzheimer Disease
• Other Study ID Numbers: NortheasternMINDLabGammaMBI

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No