NCT05184621

Brief Summary

Objective: To study the effectiveness and safety of low-intensity single wavelength red light in controlling high myopia in children and adolescents. Methods: Subject population: Children aged 3-16 years who have high myopia. Sample size: 190 subjects were planned to be enrolled and assigned to the test or control group in a 1:1 ratio.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
192

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 4, 2021

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

December 22, 2021

Completed
20 days until next milestone

First Posted

Study publicly available on registry

January 11, 2022

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2023

Completed
Last Updated

November 18, 2023

Status Verified

November 1, 2023

Enrollment Period

2.2 years

First QC Date

December 22, 2021

Last Update Submit

November 15, 2023

Conditions

Keywords

high myopiared lightchildren and adolescents

Outcome Measures

Primary Outcomes (1)

  • Axial length changes

    Axial length changes in the left and right eyes

    30± 14 days, 90± 14 days, 180± 14 days, 270± 14 days, and 365± 14 days

Secondary Outcomes (1)

  • change in equivalent spherical

    day 365±14

Study Arms (2)

efficacy

ACTIVE COMPARATOR

Including Primary outcome: changes in axial length of the eye. Secondary outcome: Equivalent spherical lens variation Other indicators: ① Changes in visual acuity with lenses, corrected visual acuity, and intraocular pressure.② Observation of changes in corneal thickness, anterior chamber depth, ciliary body thickness, and crystal thickness.Observation of fundus tissue structure of macula and peri-optic disc area. Observation of fundus choroidal/retinal thickness.Adherence index: frequency of device use.

Other: Eyesing Redlight Instrument

safety

ACTIVE COMPARATOR

Description of safety parameters: Adverse events, device defects during the test. Method and time selection for evaluation, recording, and analysis of safety parameters. Adverse events and device defects were recorded from the beginning of each subject's enrollment to the end of the group for evaluation. Safety indicators:① Incidence of allergic reactions.② Posterior image time more than 5 minutes.③ The decrease of near vision.④ The grade of side effects such as self-induced photophobia and blurred vision.⑤ Elevated intraocular pressure, headache, nausea, and vomiting, etc.

Other: Eyesing Redlight Instrument

Interventions

Eyesing Instrument developed by Suzhou Industrial Park Zoguan Medical Equipment Co. and conventional optometry.

efficacysafety

Eligibility Criteria

Age3 Years - 16 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • age 3 to 16 years (inclusive), male or female
  • clinical diagnosis confirming that myopia has occurred in at least one eye.
  • the guardian voluntarily signed the "Subject's Informed Consent Form"

You may not qualify if:

  • history of photosensitivity, glaucoma, glaucoma syndrome, high intraocular pressure, macular lesion or injury in the fundus ② corneal curvature examination, the average K value of the anterior surface of the cornea ≥ 45; ③ combined with heart, liver, kidney and other systemic diseases and prior.
  • Combination of cardiac, hepatic, renal, and other systemic diseases and congenital myopia; ④ Combination of ocular trauma and congenital myopia.
  • ④ Combined with ocular trauma and chronic ocular diseases such as apparently oblique or operated eyes, atopic keratoconjunctivitis, etc.; ⑤ Previous presence of entropion.
  • ⑤ Those with previous entropion and other eye diseases such as severe corneal and conjunctival infections; ⑥ Those with combined neurological diseases and other eye diseases.
  • (6) Those with combined neurological disorders and allergies or contraindications to atropine drugs or other therapeutic drugs; (7) Albinism and psoriasis.
  • (7) Patients with albinism, psoriasis, nephrotic syndrome, systemic lupus erythematosus, diabetes mellitus, and other immune system and systemic diseases; (8) Epilepsy, psychiatric disorders.
  • ⑧ epilepsy, mental disorders who cannot communicate normally.
  • Previously treated with other treatments to control the development of myopia such as anticholinergic drugs such as atropine within 3 months, or involved in other functional
  • Previously treated with other treatments to control the development of myopia, such as anticholinergic drugs like atropine within 3 months, or involved in other studies related to functional frame lenses, multifocal soft lenses, etc.
  • Other conditions judged by the investigator to be unsuitable for participation in the study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shanghai Eye Disease Prevention & Treatment Center

Shanghai, Shanghai Municipality, 200040, China

Location

Related Publications (5)

  • He M, Zeng J, Liu Y, Xu J, Pokharel GP, Ellwein LB. Refractive error and visual impairment in urban children in southern china. Invest Ophthalmol Vis Sci. 2004 Mar;45(3):793-9. doi: 10.1167/iovs.03-1051.

  • Zhao J, Pan X, Sui R, Munoz SR, Sperduto RD, Ellwein LB. Refractive Error Study in Children: results from Shunyi District, China. Am J Ophthalmol. 2000 Apr;129(4):427-35. doi: 10.1016/s0002-9394(99)00452-3.

  • Maul E, Barroso S, Munoz SR, Sperduto RD, Ellwein LB. Refractive Error Study in Children: results from La Florida, Chile. Am J Ophthalmol. 2000 Apr;129(4):445-54. doi: 10.1016/s0002-9394(99)00454-7.

  • Pokharel GP, Negrel AD, Munoz SR, Ellwein LB. Refractive Error Study in Children: results from Mechi Zone, Nepal. Am J Ophthalmol. 2000 Apr;129(4):436-44. doi: 10.1016/s0002-9394(99)00453-5.

  • Xu Y, Cui L, Kong M, Li Q, Feng X, Feng K, Zhu H, Cui H, Shi C, Zhang J, Zou H. Repeated Low-Level Red Light Therapy for Myopia Control in High Myopia Children and Adolescents: A Randomized Clinical Trial. Ophthalmology. 2024 Nov;131(11):1314-1323. doi: 10.1016/j.ophtha.2024.05.023. Epub 2024 Jun 6.

Study Officials

  • Haidong Zou, advanced

    Shanghai Genral Hospital/Shanghai Eye disease Treatment&Prevention Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Main efficacy indicators. Axial length changes in the left and right eyes (30± 14 days, 90± 14 days, 180± 14 days, 270± 14 days, and 365± 14 days).Secondary efficacy indicator: change in equivalent spherical lens after astigmatism (day 365±14)
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Deputy Chief Doctors

Study Record Dates

First Submitted

December 22, 2021

First Posted

January 11, 2022

Study Start

February 4, 2021

Primary Completion

April 15, 2023

Study Completion

April 15, 2023

Last Updated

November 18, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations