NCT06129942

Brief Summary

The aim of this randomized controlled trial (RCT) is to clarify the effect of bright light therapy on motor symptoms and sleep disorders in patients with Parkinson's disease.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P50-P75 for not_applicable parkinson-disease

Timeline
0mo left

Started Sep 2021

Longer than P75 for not_applicable parkinson-disease

Geographic Reach
1 country

1 active site

Status
recruiting

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

First Submitted

Initial submission to the registry

August 19, 2021

Completed
13 days until next milestone

Study Start

First participant enrolled

September 1, 2021

Completed
2.2 years until next milestone

First Posted

Study publicly available on registry

November 13, 2023

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 16, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 16, 2026

Last Updated

February 12, 2025

Status Verified

February 1, 2025

Enrollment Period

4.7 years

First QC Date

August 19, 2021

Last Update Submit

February 11, 2025

Conditions

Outcome Measures

Primary Outcomes (7)

  • Changes from baseline in total sleep time(TST) by polysomnography (PSG) at the end of each intervention period

    Total sleep time is the sum of sleep time in each period. This outcome reflects change of patients' sleep quality.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes from baseline in sleep efficient by polysomnography (PSG) at the end of each intervention period

    Sleep efficiency is the ratio of the total time spent asleep (total sleep time) in a night compared to the total amount of time spent in bed. This outcome reflects change of patients' sleep quality.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Change from baseline in REM sleep without atonia by (RWA) polysomnography (PSG) at the end of each intervention period

    REM sleep without atonia (RWA) is the PSG finding of persistent muscle tone during REM sleep, resulting in paroxysmal phasic or tonic EMG activity. Together with dream-enacting behavior (DEB), RSWA is a necessary diagnostic criterion of REM sleep behavior disorder (RBD). This outcome reflects change of RBD severity.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Change from baseline in sleep onset latency polysomnography (PSG) at the end of each intervention period

    Sleep latency is the amount of time it takes patients to go from being fully awake to sleeping. Patients' sleep latency and how quickly they reach rapid eye movement (REM) sleep can be indicators of the amount and quality of sleep they are getting.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Change from baseline in Periodic Limb Movement during Sleep(PLMS) by polysomnography (PSG) at the end of each intervention period

    Periodic limb movement during sleep (PLMS) is is described as a stereotypical involuntary movement during sleep. In particular, presenting more than 15 periodic limb movements per hour is related to daytime sleepiness due to low sleep quality. This outcome reflects change of patients' sleep quality.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes from baseline in duration and percentage of each sleep stage by polysomnography (PSG) at the end of each intervention period

    Changes in the length and percentage of N1, N2, N3 and REM sleep,which reflect changes in sleep structure.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes from baseline in slow wave activity(SWA) and slow wave energy(SWE) by polysomnography (PSG) at the end of each intervention period

    SWA and SWE are indicators of sleep depth and homeostasis in PSG.

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

Secondary Outcomes (17)

  • Changes from baseline in MDS Unified Parkinson's Disease Rating Scale (MDS-UPDRS) score at the end of each intervention period

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes form baseline in Hoehn-Yahr scale at the end of each intervention period

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes form baseline in PDSS-2 score scale at the end of each intervention period

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes form baseline in Pittsburgh sleep quality index (PSQI) score at the end of each intervention period

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • Changes from baseline in REM sleep behavior disorder questionnaire-Hong Kong (RBDQ-HK) score at the end of each intervention period

    visit1(baseline),visit2(4th week),visit3(8th week),visit4(12th week)

  • +12 more secondary outcomes

Study Arms (2)

Dim light group

PLACEBO COMPARATOR

treated with the placebo device which operates with one intensity of 300 lux \* 1 month

Device: Dim Light box

Bright light group

EXPERIMENTAL

treated with the experimental device which operates with one intensity of 10,000 lux \* 1 month

Device: Bright light box

Interventions

The light box uses a spectrally transparent prism diffuser, which can block ultraviolet rays, but will not affect the quality of the filtered light and will not turn yellow. The distance between the light box and the patient should not exceed 65cm.PD patients are selected for light intervention of different intensities. The experimental group is treated with 10,000 Lux intensity. The treatment time is 1 hour each day from 08:00-11:00 in the morning and 17:00-19:00 in the afternoon lasting for a month. The patient is asked to move under the light source, but should not fall asleep.

Bright light group

The light box uses a spectrally transparent prism diffuser, which can block ultraviolet rays, but will not affect the quality of the filtered light and will not turn yellow. The distance between the light box and the patient should not exceed 65cm.PD patients are selected for light intervention of different intensities. The control group is treated with 300 Lux intensity. The treatment time is 1 hour each day from 08:00-11:00 in the morning and 17:00-19:00 in the afternoon lasting for a month. The patient is asked to move under the light source, but should not fall asleep.

Dim light group

Eligibility Criteria

Age50 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • According to the criteria of PD diagnosis of the MDS, PD patients were selected as the research object. The clinical symptoms of PD patients were consistent with Hoehn and Yahr stages 2-3.
  • All PD patients have maintained stable drug treatment for at least one month, signed clinical informed consent and agreed not to adjust drugs throughout the light test and follow-up period.

You may not qualify if:

  • Using hypnotic or stimulating drugs.
  • Using antidepressants, except stable drugs maintained for more than three months;
  • Visual impairment, such as cataract, glaucoma, blindness, etc;
  • Cognitive impairment (MMSE \< 24);
  • There are uncontrollable hallucinations and mental diseases;
  • There are sleep phase delay / advance syndrome, shift work, jet lag, etc

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, Second Affiliated Hospital of Soochow University

Suzhou, Jiangsu, 215004, China

RECRUITING

Related Publications (14)

  • Fox SH, Katzenschlager R, Lim SY, Barton B, de Bie RMA, Seppi K, Coelho M, Sampaio C; Movement Disorder Society Evidence-Based Medicine Committee. International Parkinson and movement disorder society evidence-based medicine review: Update on treatments for the motor symptoms of Parkinson's disease. Mov Disord. 2018 Aug;33(8):1248-1266. doi: 10.1002/mds.27372. Epub 2018 Mar 23.

    PMID: 29570866BACKGROUND
  • Li Z, Tian T. Light Therapy Promoting Dopamine Release by Stimulating Retina in Parkinson Disease. JAMA Neurol. 2017 Oct 1;74(10):1267-1268. doi: 10.1001/jamaneurol.2017.1906. No abstract available.

    PMID: 28806435BACKGROUND
  • Rutten S, Vriend C, Smit JH, Berendse HW, Hoogendoorn AW, van den Heuvel OA, van der Werf YD. A double-blind randomized controlled trial to assess the effect of bright light therapy on depression in patients with Parkinson's disease. BMC Psychiatry. 2016 Oct 21;16(1):355. doi: 10.1186/s12888-016-1050-z.

    PMID: 27769202BACKGROUND
  • Paus S, Schmitz-Hubsch T, Wullner U, Vogel A, Klockgether T, Abele M. Bright light therapy in Parkinson's disease: a pilot study. Mov Disord. 2007 Jul 30;22(10):1495-1498. doi: 10.1002/mds.21542.

    PMID: 17516492BACKGROUND
  • Riemersma-van der Lek RF, Swaab DF, Twisk J, Hol EM, Hoogendijk WJ, Van Someren EJ. Effect of bright light and melatonin on cognitive and noncognitive function in elderly residents of group care facilities: a randomized controlled trial. JAMA. 2008 Jun 11;299(22):2642-55. doi: 10.1001/jama.299.22.2642.

    PMID: 18544724BACKGROUND
  • Rutten S, Vriend C, Smit JH, Berendse HW, van Someren EJW, Hoogendoorn AW, Twisk JWR, van der Werf YD, van den Heuvel OA. Bright light therapy for depression in Parkinson disease: A randomized controlled trial. Neurology. 2019 Mar 12;92(11):e1145-e1156. doi: 10.1212/WNL.0000000000007090. Epub 2019 Feb 15.

    PMID: 30770426BACKGROUND
  • Moges H, Vasconcelos OM, Campbell WW, Borke RC, McCoy JA, Kaczmarczyk L, Feng J, Anders JJ. Light therapy and supplementary Riboflavin in the SOD1 transgenic mouse model of familial amyotrophic lateral sclerosis (FALS). Lasers Surg Med. 2009 Jan;41(1):52-9. doi: 10.1002/lsm.20732.

    PMID: 19143012BACKGROUND
  • Videnovic A, Klerman EB, Wang W, Marconi A, Kuhta T, Zee PC. Timed Light Therapy for Sleep and Daytime Sleepiness Associated With Parkinson Disease: A Randomized Clinical Trial. JAMA Neurol. 2017 Apr 1;74(4):411-418. doi: 10.1001/jamaneurol.2016.5192.

    PMID: 28241159BACKGROUND
  • Muntean ML, Benes H, Sixel-Doring F, Chaudhuri KR, Suzuki K, Hirata K, Zimmermann J, Trenkwalder C. Clinically relevant cut-off values for the Parkinson's Disease Sleep Scale-2 (PDSS-2): a validation study. Sleep Med. 2016 Aug;24:87-92. doi: 10.1016/j.sleep.2016.06.026. Epub 2016 Aug 24.

  • Opara J, Malecki A, Malecka E, Socha T. Motor assessment in Parkinson;s disease. Ann Agric Environ Med. 2017 Sep 21;24(3):411-415. doi: 10.5604/12321966.1232774. Epub 2017 May 11.

  • Shen SS, Shen Y, Xiong KP, Chen J, Mao CJ, Huang JY, Li J, Han F, Liu CF. Validation study of REM sleep behavior disorder questionnaire-Hong Kong (RBDQ-HK) in east China. Sleep Med. 2014 Aug;15(8):952-8. doi: 10.1016/j.sleep.2014.03.020. Epub 2014 May 14.

  • Torbey E, Pachana NA, Dissanayaka NN. Depression rating scales in Parkinson's disease: A critical review updating recent literature. J Affect Disord. 2015 Sep 15;184:216-24. doi: 10.1016/j.jad.2015.05.059. Epub 2015 Jun 10.

  • Oguh O, Kwasny M, Carter J, Stell B, Simuni T. Caregiver strain in Parkinson's disease: national Parkinson Foundation Quality Initiative study. Parkinsonism Relat Disord. 2013 Nov;19(11):975-9. doi: 10.1016/j.parkreldis.2013.06.015. Epub 2013 Jul 18.

  • Martinez-Martin P, Rodriguez-Blazquez C, Mario Alvarez, Arakaki T, Arillo VC, Chana P, Fernandez W, Garretto N, Martinez-Castrillo JC, Rodriguez-Violante M, Serrano-Duenas M, Ballesteros D, Rojo-Abuin JM, Chaudhuri KR, Merello M. Parkinson's disease severity levels and MDS-Unified Parkinson's Disease Rating Scale. Parkinsonism Relat Disord. 2015 Jan;21(1):50-4. doi: 10.1016/j.parkreldis.2014.10.026. Epub 2014 Nov 5.

MeSH Terms

Conditions

Parkinson DiseaseSleep Wake DisordersChronobiology Disorders

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMental Disorders

Study Officials

  • Chun-Feng Liu, PhD

    Second Affiliated Hospital of Soochow University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 19, 2021

First Posted

November 13, 2023

Study Start

September 1, 2021

Primary Completion (Estimated)

May 16, 2026

Study Completion (Estimated)

May 16, 2026

Last Updated

February 12, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations