NCT05957458

Brief Summary

Photobiomodulation therapy, that is, Low-level red-light technology provides a new and innovative myopia control approach. This strategy enables relatively high energies of light to be delivered at much shorter durations of exposure to induce the myopia control effect. The efficacy of the low-level red-light technology has been proven in a Chinese populationb for the recent 3 years with evidence based papers and amazing results. However, there's not yet evidence to demonstrate the relationship between the dose response effect of photobiomodulation therapy on myopia control at the different age lever.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2021

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

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2021

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

May 23, 2023

Completed
8 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 24, 2023

Completed
Last Updated

July 24, 2023

Status Verified

July 1, 2023

Enrollment Period

2 years

First QC Date

May 23, 2023

Last Update Submit

July 20, 2023

Conditions

Keywords

MyopiaPBM therapyLLLT

Outcome Measures

Primary Outcomes (3)

  • Axial length shortening comparing to that value of baseline (mm)

    Measured with optial coherent methods with the same device assistant with the same techinician

    12-month

  • Axial length shortening comparing to that value of baseline (mm)

    Measured with optial coherent methods with the same device assistant with the techinician

    1-month

  • Axial length shortening comparing to that value of baseline (mm)

    Measured with optial coherent methods with the same device assistant with the same techinician

    6-month

Secondary Outcomes (1)

  • Refractive changes at the follow-up from the baseline (D)

    12-month

Study Arms (4)

Moderate irradiance of PBM therapy to myopia

EXPERIMENTAL

The PBM therapy irradiance is about 0.60mW. It is asked subjects to look at the light binocularly with fusion through the pupils with natural pupils. The distance between the light and the pupils is about 5\~10cm. The treatment of each session is 3 minutes and twice daily administration while the interval time between two session is equal or larger than 4 hours with twice daily administration.

Device: Airdoc device of red light for Myopia

Extra low irradiance PBM therapy group

SHAM COMPARATOR

The PBM therapy irradiance is about 0.37mW. It is asked subjects to look at the light binocularly with fusion through the pupils with natural pupils. The distance between the light and the pupils is about 5\~10cm. The treatment of each session is 3 minutes and twice daily administration while the interval time between two session is equal or larger than 4 hours with twice daily administration.

Device: Airdoc device of red light for Myopia

high lever PBM therapy group

EXPERIMENTAL

The PBM therapy irradiance is about 1.20mW. It is asked subjects to look at the light binocularly with fusion through the pupils with natural pupils. The distance between the light and the pupils is about 5\~10cm. The treatment of each session is 3 minutes and twice daily administration while the interval time between two session is equal or larger than 4 hours with twice daily administration.

Device: Airdoc device of red light for Myopia

Control

NO INTERVENTION

Without PBM therapy group.

Interventions

This light is Narrow-Band, Long-Wavelength Lighting with three different illumination (400lux, 800lux, 1200lux) or irridiance (1.2mW, 0.6mW, 0.37mW) respectively. And the wavelength is 650nm. It allows biocular therapy.

Also known as: low lever laser therapy, photobiomodulation therapy, low lever light therapy
Extra low irradiance PBM therapy groupModerate irradiance of PBM therapy to myopiahigh lever PBM therapy group

Eligibility Criteria

Age4 Years - 41 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Myopia or near Myopia with younger age
  • Without other intervention of myopia control, including atropine, Misight contact lens, special design lens to control myopia, orthokeratology and other red light devices.
  • Follow-up at least once
  • With baseline data of ocular parameters before the follow-up

You may not qualify if:

  • Photophobia
  • Allergy to red light
  • Severe ocular progressing diseases or systemic diseases
  • The data is unacceptable with reasonable explanations

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Qiu Jenny

Beijing, Haidian District, 100089, China

Location

Related Publications (1)

  • Zhou L, Tong L, Li Y, Williams BT, Qiu K. Photobiomodulation therapy retarded axial length growth in children with myopia: evidence from a 12-month randomized controlled trial evidence. Sci Rep. 2023 Feb 27;13(1):3321. doi: 10.1038/s41598-023-30500-7.

    PMID: 36849626BACKGROUND

MeSH Terms

Conditions

MyopiaAmblyopiaRefractive Errors

Interventions

Low-Level Light Therapy

Condition Hierarchy (Ancestors)

Eye DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVision DisordersSensation DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Laser TherapyTherapeuticsPhototherapy

Study Officials

  • QIU JENNY, MD

    Airdoc MPC Co, Ltd.

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Masking Details
No mask for all. Open and retrospective study.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Three groups are all treated with PBM therapy with follow-up but they irradiance is different while one group is as the control.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 23, 2023

First Posted

July 24, 2023

Study Start

January 1, 2021

Primary Completion

December 31, 2022

Study Completion

May 31, 2023

Last Updated

July 24, 2023

Record last verified: 2023-07

Locations