The Effect of Electroacupuncture Treatment on Cognitive Function in Adults With Amnestic Mild Cognitive Impairment

Summary

Background:

Amnestic mild cognitive impairment (aMCI) is a prevalent condition, often regarded as the transitional phase between normal cognitive aging and early Alzheimer\'s disease. Conventional treatments for aMCI remain limited, with pharmacological interventions showing mixed results and often failing to halt disease progression. Electroacupuncture (EA), is believed to improve cognitive function in various neurodegenerative disorders, including aMCI. Randomized controlled trials have also reported that acupuncture can positively influence cognitive function by promoting cerebral blood flow and modulating neurotransmitter activity, potentially offering a non-pharmacological approach to managing aMCI. However, robust clinical trials are lacking, and there is a need to assess the feasibility and efficacy of EA in treating aMCI. This pilot study aims to determine the preliminary efficacy of EA in improving cognitive function, and to evaluate the feasibility of the study design for future large-scale trials.

Methods:

This trial will be a multicenter, assessor- and data analyst-blind, pilot randomized controlled trial. A total of 24 participants aged 55-75 years, diagnosed with aMCI, will be recruited and randomly assigned in a 1:1 ratio into either the EA treatment group or a control group. Participants in the EA group will receive electroacupuncture at specific acupoints, while the control group will not undergo any intervention. The intervention will last 4 weeks, with two EA sessions per week, a total of 8 sessions. Assessments will be conducted at three time points: baseline, post-treatment (Week 4), and follow-up (Week 6). All participants will continue their standard medical care throughout the trial.

The primary outcome will be the change in cognitive function as measured by the Hong Kong version of the Montreal Cognitive Assessment (HK-MoCA). Secondary outcomes will include changes in the Clinical Dementia Rating (CDR) and verbal fluency test, focusing on the memory domain. Safety and adverse events will be monitored throughout the study via follow-up assessments and questionnaires. Statistical analyses, including linear mixed models (LMM), will be performed using R and SPSS software, adhering to the intention-to-treat principle.

Expected Outcomes:

This pilot study is expected to provide preliminary data on the efficacy and safety of electroacupuncture in improving cognitive function in patients with aMCI. It will also assess the feasibility of conducting a larger-scale trial, including participant recruitment, adherence to the intervention, and the acceptability of outcome measures. Findings from this study will offer insights into the therapeutic potential of acupuncture and inform the design of future trials aimed at exploring its role as an alternative or complementary treatment for aMCI.

Conditions

• Amnestic Mild Cognitive Impairment - aMCI

Interventions

DEVICE

Electroacupuncture

Disposable sterilized needles are inserted into selected acupoints at a depth of approximately 17-25 mm and an angle of 15-30° along the scalp. Acupoints are then stimulated by the SDZ-II electroacupuncture device, with a dilatational wave pattern at 4/20 Hz. The intensity of the stimulation was adjusted to the patient\'s tolerance.

Sponsors & Collaborators

• Hong Kong Baptist University

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

55 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2024-04-04

Primary Completion

2025-01-03

Completion

2025-01-03

Countries

• Hong Kong

Study Locations