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NCT Number: NCT03614962

Warmth and Transcutaneous Electrical Nerve Stimulation (TENS) in Improving Cognitive Functions in People with Dementia

Evidence showed that both TENS and passive body heating are potential treatment strategies for improving cognitive functions in people with dementia. It is hypothesized that hat device (Warmth +TENS) over the 4 acupuncture points would induce a greater improvement in cognitive functions and behavioural symptoms when compared with other hat devices (Warmth + placebo-TENS; TENS only; Warmth alone) and Control (hat device with no warmth and no TENS).

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Key information

Conditions

Dementia Brain Diseases Central Nervous System Diseases Mental Disorders Nervous System Diseases Neurocognitive Disorders

Age range

65 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

The Hong Kong Polytechnic University

Hong Kong

Location status: Recruiting

Location contact

Shamay Ng, Dr

CONTACT

27664883

About this study

Acupuncture, a primary therapeutic method in traditional Chinese medicine, has been used for patients with dementia to improve memory, orientation, calculation, and self-managing ability in patients having dementia and prevent decline of cognitive functions. Results of animal studies have demonstrated that electroacupuncture on the head region is effective in managing the symptoms associated with dementia, including vascular dementia.

A review of 8 studies on effects of TENS on non-pain related cognitive and behavioural functioning in patients with Alzheimer's disease and non-demented patients concluded that TENS could improve memory, affective behaviour and rest-activity rhythm in patients having Alzheimer's disease.

Passive body heating is another novel physical intervention strategy which potentially can relieve the symptoms of dementia. A previous study demonstrated that the attention function of 15 elderly, measured by the reaction time in the Rapid Visual Processing Test, improved after passive body heating via a thermal suit. Moreover, 30 minutes of hot-water immersion improved the sleep quality in 13 people with vascular dementia.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • are currently diagnosed having Alzheimer's disease, vascular dementia or mixed-type mild to major neurocognitive disorder based on the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM -5) by psychogeriatrician with more than 3 years of experience in dementia diagnosis;
  • are categorized in the mild or moderate degree of dementia based on the Global Deterioration Scale;
  • have a stable drug intake for the past 3 months;
  • live with at least 1 caregiver in the community;
  • are able to follow simple instructions;
  • are able to give informed consent by them or their family members.

Exclusion criteria

  • have unstable medical conditions or severe behavioural disturbances, which do not allow participation in the study as judged by the study psychogeriatrician,
  • have any additional medical, cardiovascular , orthopedic or cognitive conditions, such as having uncontrolled hypertension unstable angina and comorbid schizophrenia, that would hinder proper assessment and treatment.
  • use a cardiac pacemaker,
  • live in old age home, elderly home or care and attention homes,
  • receive long term nursing home placements of patients during the treatment phase

Treatment and study plan

Warmth + TENS

Device

A hat device will offer the electrical stimulation (pulse width of 120 milliseconds at about 100 Hz with constant current 0.02mA-0.7 mA, intensity setting at sensory threshold) over 4 acupuncture points over the scalp, including Baihui (GV20), Sishencong (EX-HN1), Fengchi (GB20) and Shenting (GV24). Selection of acupuncture points has been based on the recommendation of traditional Chinese medicine.

A custom-built warmth pad surrounding the TENS electrodes could produce the controlled comfortable warmth sensation, with default setting at 37degrees to 40 degrees Celsius.

Warmth + placebo-TENS

Device

A custom-built warmth pad surrounding the TENS electrodes could produce the controlled comfortable warmth sensation, with default setting at 37degrees to 40 degrees Celsius. The TENS electrodes are presented in the cap but no output will be delivered via these electrodes.

TENS

Device

A hat device will offer the electrical stimulation (pulse width of 120 milliseconds at about 100 Hz with constant current 0.02mA-0.7 mA, intensity setting at sensory threshold) over 4 acupuncture points over the scalp, including Baihui (GV20), Sishencong (EX-HN1), Fengchi (GB20) and Shenting (GV24). Selection of acupuncture points has been based on the recommendation of traditional Chinese medicine.

Warmth only

Device

A custom-built warmth pad surrounding the TENS electrodes could produce the controlled comfortable warmth sensation, with default setting at 37degrees to 40 degrees Celsius. No built-in TENS electrodes in the cap.

Control

Device

No warmth pad and TENS electrodes presented in the cap.

Primary outcomes

  1. The Hong Kong version of Montreal Cognitive Assessment (HK-MoCA) - Baseline

    Time frame: Baseline (0 week)

    The HK-MoCA will be used to assess the level of cognitive impairment. The scores of HK-MoCA ranging from 0 to 30, with a higher score indicates a higher level of cognitive function. This instrument was designed to evaluate 7 domains of cognitive functions which are key determinants of the functional performance of the participants, namely visuospatial/executive functions, naming, verbal memory registration and learning, attention, abstraction, delayed verbal memory.

  2. The Hong Kong version of Montreal Cognitive Assessment (HK-MoCA) - post intervention

    Time frame: 6 weeks

    The HK-MoCA will be used to assess the level of cognitive impairment. The scores of HK-MoCA ranging from 0 to 30, with a higher score indicates a higher level of cognitive function. This instrument was designed to evaluate 7 domains of cognitive functions which are key determinants of the functional performance of the participants, namely visuospatial/executive functions, naming, verbal memory registration and learning, attention, abstraction, delayed verbal memory.

  3. The Hong Kong version of Montreal Cognitive Assessment (HK-MoCA) - short term followup

    Time frame: 10 weeks

    The HK-MoCA will be used to assess the level of cognitive impairment. The scores of HK-MoCA ranging from 0 to 30, with a higher score indicates a higher level of cognitive function. This instrument was designed to evaluate 7 domains of cognitive functions which are key determinants of the functional performance of the participants, namely visuospatial/executive functions, naming, verbal memory registration and learning, attention, abstraction, delayed verbal memory.

  4. The Hong Kong version of Montreal Cognitive Assessment (HK-MoCA) - long term followup

    Time frame: 62 weeks

    The HK-MoCA will be used to assess the level of cognitive impairment. The scores of HK-MoCA ranging from 0 to 30, with a higher score indicates a higher level of cognitive function. This instrument was designed to evaluate 7 domains of cognitive functions which are key determinants of the functional performance of the participants, namely visuospatial/executive functions, naming, verbal memory registration and learning, attention, abstraction, delayed verbal memory.

Secondary outcomes

  1. Chinese version of Disability Assessment for Dementia (C-DAD) - baseline

    Time frame: baseline (0 week)

    C-DAD will be used to assess the participant's ability to perform a spectrum of functional activities, such as going on an outing and housekeeping. During the assessment, a caregiver is asked to indicate if the participant was able to perform 47 daily activities within the previous weeks with the responses of 'yes', ''no' or 'not applicable'. The result will then be converted into a scale ranging from 0 to 100, with a higher score indicates a higher level of functioning.

  2. Chinese version of Disability Assessment for Dementia (C-DAD) - post intervention

    Time frame: 6 weeks

    C-DAD will be used to assess the participant's ability to perform a spectrum of functional activities, such as going on an outing and housekeeping. During the assessment, a caregiver is asked to indicate if the participant was able to perform 47 daily activities within the previous weeks with the responses of 'yes', ''no' or 'not applicable'. The result will then be converted into a scale ranging from 0 to 100, with a higher score indicates a higher level of functioning.

  3. Chinese version of Disability Assessment for Dementia (C-DAD) - short term followup

    Time frame: 10 weeks

    C-DAD will be used to assess the participant's ability to perform a spectrum of functional activities, such as going on an outing and housekeeping. During the assessment, a caregiver is asked to indicate if the participant was able to perform 47 daily activities within the previous weeks with the responses of 'yes', ''no' or 'not applicable'. The result will then be converted into a scale ranging from 0 to 100, with a higher score indicates a higher level of functioning.

  4. Chinese version of Disability Assessment for Dementia (C-DAD) - long term followup

    Time frame: 62 weeks

    C-DAD will be used to assess the participant's ability to perform a spectrum of functional activities, such as going on an outing and housekeeping. During the assessment, a caregiver is asked to indicate if the participant was able to perform 47 daily activities within the previous weeks with the responses of 'yes', ''no' or 'not applicable'. The result will then be converted into a scale ranging from 0 to 100, with a higher score indicates a higher level of functioning.

  5. Pittsburg Sleep Quality Index (PSQI) - baseline

    Time frame: baseline (0 weeks)

    PSQI will be used to assess the participant's sleep quality for the past months. PSQI consists of 19 individual items including sleep duration, sleep latency, sleep disturbance etc. The total score will be range from 0-21 and lower scores indicate a better sleep quality.

  6. Pittsburg Sleep Quality Index (PSQI) - post intervention

    Time frame: 6 weeks

    PSQI will be used to assess the participant's sleep quality for the past months. PSQI consists of 19 individual items including sleep duration, sleep latency, sleep disturbance etc. The total score will be range from 0-21 and lower scores indicate a better sleep quality.

  7. Pittsburg Sleep Quality Index (PSQI) - short term followup

    Time frame: 10 weeks

    PSQI will be used to assess the participant's sleep quality for the past months. PSQI consists of 19 individual items including sleep duration, sleep latency, sleep disturbance etc. The total score will be range from 0-21 and lower scores indicate a better sleep quality.

  8. Pittsburg Sleep Quality Index (PSQI) - long term followup

    Time frame: 62 weeks

    PSQI will be used to assess the participant's sleep quality for the past months. PSQI consists of 19 individual items including sleep duration, sleep latency, sleep disturbance etc. The total score will be range from 0-21 and lower scores indicate a better sleep quality.

Study contacts

Contact information is provided by the study sponsor or research team.

SSM Ng, PhD

CONTACT

[email protected]

+852 2766-4889

Sponsors and collaborators

Lead sponsor

The Hong Kong Polytechnic University

Other

Collaborators

  • Prince of Wales Hospital, Shatin, Hong Kong

Registry information

Official study title

Efficacy of Warmth and Transcutaneous Electrical Nerve Stimulation (TENS) in Improving Cognitive Functions and Behavioral Symptoms in Older Adults with Dementia: a Randomized, Controlled Clinical Trial

Important dates

Study start
2019
Primary completion
2024
Study completion
2024
First posted
Aug 3, 2018
Registry last updated
Oct 3, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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