NCT04407351

Brief Summary

Investigators aim to collaborate with the division of neurology, ophthalmology and dermatology at the Kaohsiung Medical University, and make a new phototherapy for participants suffering from dementia, sleep disorder, mild cognitive dysfunction by using IoT and data science on big health and environmental data.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
51

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2017

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

May 1, 2017

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2020

Completed
7 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 7, 2020

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

May 10, 2020

Completed
19 days until next milestone

First Posted

Study publicly available on registry

May 29, 2020

Completed
Last Updated

May 29, 2020

Status Verified

May 1, 2020

Enrollment Period

3 years

First QC Date

May 10, 2020

Last Update Submit

May 27, 2020

Conditions

Keywords

DementiaSleep DisorderPhototherapyLight Emitting Diode (LED)Mild Cognitive Impairment

Outcome Measures

Primary Outcomes (3)

  • Laser Doppler blood flow analysis (perfusion unit (PU))

    It is a technique for monitoring microvascular perfusion by PeriFlux System 5000 (Perimed, Stockholm, Sweden). The light source can penetrate tissues and thus can measure blood perfusion without invasive procedures. The microvascular perfusion situation is immediate results and can be used to quantify the degree of skin damage. Its unit is perfusion unit (PU).

    Baseline

  • Laser Doppler blood flow analysis (perfusion unit (PU))

    It is a technique for monitoring microvascular perfusion by PeriFlux System 5000 (Perimed, Stockholm, Sweden). The light source can penetrate tissues and thus can measure blood perfusion without invasive procedures. The microvascular perfusion situation is immediate results and can be used to quantify the degree of skin damage. Its unit is perfusion unit (PU).

    12 weeks

  • Laser Doppler blood flow analysis (perfusion unit (PU))

    It is a technique for monitoring microvascular perfusion by PeriFlux System 5000 (Perimed, Stockholm, Sweden). The light source can penetrate tissues and thus can measure blood perfusion without invasive procedures. The microvascular perfusion situation is immediate results and can be used to quantify the degree of skin damage. Its unit is perfusion unit (PU).

    26 weeks

Secondary Outcomes (9)

  • Hydration

    Baseline

  • Hydration

    12 weeks

  • Hydration

    26 weeks

  • Transepidermal water loss

    Baseline

  • Transepidermal water loss

    12 weeks

  • +4 more secondary outcomes

Study Arms (2)

Arm Green LED light - Red LED light

OTHER

Every morning between 7-8 o'clock, participants will receive 7,500 Lux at home at 470 nm as a full-band (bright light) light-emitting diode (Green LED light) luminaire with a distance of 80-100 cm at a 45-degree angle Light exposure for 30-60 minutes for 12 weeks, the rest of the time indoors is not limited by light. Then crossover to red light after 2 weeks for wash out. Every morning between 7-8 o'clock, participants receive 50 Lux of Red LED light (dim light) at their own homes and illuminate at a distance of 80-100 cm at a 45-degree angle for 30-60 minutes for 12 weeks.

Device: Green LED lightDevice: Red LED light (placebo)

Arm Red LED light - Green LED light

OTHER

Every morning between 7-8 o'clock, participants receive 50 Lux of Red LED light (dim light) at their own homes and illuminate at a distance of 80-100 cm at a 45-degree angle for 30-60 minutes for 12 weeks, and the rest of the time indoors is not restricted by light. Then crossover to green light after 2 weeks for wash out. Every morning between 7-8 o'clock, participants will receive 7,500 Lux at home at 470 nm as a full-band (bright light) light-emitting diode (Green LED light) luminaire with a distance of 80-100 cm at a 45-degree angle Light exposure for 30-60 minutes for 12 weeks.

Device: Green LED lightDevice: Red LED light (placebo)

Interventions

Investigators arrange 12 weeks green LED light phototherapy.

Arm Green LED light - Red LED lightArm Red LED light - Green LED light

Investigators arrange 12 weeks red LED light phototherapy (placebo).

Arm Green LED light - Red LED lightArm Red LED light - Green LED light

Eligibility Criteria

Age55 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • (1) The age is between 55 and 80 years old
  • (2) Education level is above elementary school graduation
  • (3) Use Edinburgh Inventory as the right hand

You may not qualify if:

  • (1) Neurological diseases, including cerebral stroke, epilepsy, Parkinson's disease and head trauma that cause local nerve signs
  • (2) Mental illnesses, including mental disorders, drug addiction, abnormal personality, and poorly controlled schizophrenia;
  • (3) Regularly take sedative and sleeping drugs or central nervous system stimulants
  • (4) Major physical diseases, including cancer, poorly controlled diabetes, hypertension and thyroid disease, immune rheumatism, heart failure, chronic obstructive pulmonary disease, liver cirrhosis, and chronic kidney disease stages IV and V

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kaohsiung Medical University Hospital

Kaohsiung City, 807, Taiwan

Location

Related Publications (2)

  • Yu WT, Yu HS, Wu CS, Lee CH, Cheng YC, Lin WT, Chen GS, Lan CC. Noninvasive cutaneous blood flow as a response predictor for visible light therapy on segmental vitiligo: a prospective pilot study. Br J Dermatol. 2011 Apr;164(4):759-64. doi: 10.1111/j.1365-2133.2010.10148.x.

    PMID: 21087230BACKGROUND
  • Yang SY, Lan CC. Acquired Port-wine Stain with Local Heat. Acta Derm Venereol. 2016 Feb;96(2):274-5. doi: 10.2340/00015555-2193. No abstract available.

    PMID: 26123172BACKGROUND

MeSH Terms

Conditions

DementiaSleep Wake DisordersCognitive Dysfunction

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System DiseasesNeurocognitive DisordersMental DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsCognition Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
SUPPORTIVE CARE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 10, 2020

First Posted

May 29, 2020

Study Start

May 1, 2017

Primary Completion

April 30, 2020

Study Completion

May 7, 2020

Last Updated

May 29, 2020

Record last verified: 2020-05

Data Sharing

IPD Sharing
Will not share

Investigators do not plan to make individual participant data available to other researchers.

Locations