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Status unknownNCT05477329Updated Aug 1, 2022

CHILDREN MYOPIA CONTROL

An interventional study of Lenses in Myopia, sponsored by Shamir Optical Industry Ltd. Status unknown at 1 site in Israel. Open to participants aged 6 Years to 12 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-08-01.

Sponsored by Shamir Optical Industry Ltd · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jul 2022), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 1 year 1 month after the study started (first participant enrolled Jun 2021, registered Jul 2022).
Phase
Not applicable
Study type
Interventional
Enrollment
136
Allocation
Randomized
Ages
6 Years to 12 Years
Sex
All
01

Study summary

The purpose of this trial is evaluating the clinical effect of a myopia control spectacle lens compared to a single vision spectacle lens in slowing down the progression of myopia in children living in Israel.

Read the detailed description

TRIAL PLAN

Screening visit (VISIT 1)

  • Enrollment criteria verification
  • Signing informed consent
  • Baseline documentation of medical history, parental and siblings myopia, indoor and outdoor activities profile and socioeconomic profile
  • Lensmeter measurements of participants spectacles
  • Performing baseline measurements including best corrected VA, objective \& subjective refraction under cycloplegia, PR under cycloplegia*, slit lamp examination, functional tests: cover test, titmus test, worth four dot test, axial length** and pupil size measurements
  • Frame selection and frame measurements
  • Lens order completion and sending to manufacturing

Randomization Procedures (following VISIT 1) Randomization procedures should be performed by the trial coordinator following visit 1. The participant will then be allocated to the test or control group.

Manufacturing Procedures (following VISIT 1) The manufacturing technician will take care of the manufacturing processes according to the lens type (test or control) and the mounting on the frame. The test spectacles will then be sent to the site for delivery.

Delivery visit (VISIT 2) performed \~10 days after screening visit

  • Trial spectacles delivery
  • Subjective questionnaire while wearing the trial spectacles
  • Best corrected far and near VA (with the trial spectacles)
  • Confrontation visual field test with the trial spectacles
  • Giving instructions about wearing the trial spectacles
  • Documenting adverse events if relevant

Follow-up visit performed 6 months (±1 week) after the previous visit (VISITS 3,4,5,6)

  • Documentation of any change medical history since last visit
  • Subjective questionnaire regarding the wearing period with the trial spectacles (feedback performing follow-up measurements including best corrected far and near VA, objective \& subjective refraction under cycloplegia, PR under cycloplegia*, slit lamp examination, functional tests: cover test, titmus test, worth four dot test, axial length and pupil size measurements
  • If the subjective refraction will find a SE (Sphere Equivalent) change from last refraction of at least -0.50D, a new lens order should be made for new lenses, and a delivery visit should be set in order to deliver the new test spectacles. The procedures mentioned above in the delivery visit (visit 2) should then be performed.
  • Documenting adverse events if relevant

Additional unscheduled visits

  • May be scheduled as needed if special needs occur
  • Procedures will be defined by the investigator
  • Documenting adverse events if relevant

Total duration of trial per patient: 24 months.

ETHICAL ISSUES

This trial will be conducted according to the applicable local regulations and the GCP. All essential documents will be reviewed and approved by the ethics committee prior to the beginning of the trial. Any amendments of these documents will be reviewed and approved by the ethics committee prior to implantation in the trial.

Informed Consent The investigator will give the participant and their parent/legal guardian a full explanation about the trial and will answer all their question regarding participating in the trial.

The investigator will explain that the participant will be able to withdraw from the trial at any stage for any reason.

The participants parent/legal guardian will sign the informed consent form and will receive a signed copy of it.

Data confidentiality All identification details about the participants in the trial will be held by the investigator in a secured log file kept at the trial site.

Access to the identification details will not be allowed to any unauthorized party and will not be disclosed in any report/document relating to the trial.

Terminating the participation in the trial

These are the cases in which an early termination of the participation in the trial may occur:

  1. Should the myopia progression of the participant will be more than 1.00 D after 1 year or other significant refractive changes (such as more than 0.5[D] cylinder) - the investigator will recommend the participant to discontinue the participation in the trial and to consider using other myopia control treatments such as low dose Atropine drops.
  2. Should the far/near VA with the trial spectacles will be less than the best corrected VA of the participant, the investigator will consider recommending the participant to discontinue the participation in the trial.

RISK EVALUATION/ ADVERSE EVENTS

The optical design of the test lens, with the gradual positive peripheral power, induce a certain amount of aberrations in the peripheral areas of the lens. These aberrations were designed such that a good level of compliance will be achieved so that the participant will be able to wear the lens.

Adverse events are unlikely to occur, yet it should be mentioned that a participant should not wear this lens in case of one/more of the following exist:

  • Feeling significant amount of discomfort while wearing the lens such that the safety of the participant might be at risk.
  • Vestibular disorders The participants in the trial will be free to contact the investigator at any time during the wearing period in order to report any unexpected events that might occur. The investigator will decide based on the report whether the child should be excluded from continuing the trial.

Furthermore, it should be noted that a parallel clinical trial is being conducted these days in AIER hospital in China, managed and supervised by Brien Holden Vision Institution (Australia). The trial is similar to our trial, with the same trial product, on a group of 140 participants with the same enrollment criteria, including similar trial procedures and trial plan. The trial started at November 2020, and as for now most of the participants has worn the test spectacles for a few months with no adverse events reported.

DATA MANAGEMENT

Database An electronic data base will be held and maintained, into which all the source data will be electronically transferred from the measuring devices, or if not possible, will be typed in and source data (printouts or location of data) will be kept in the participants file. At any case, all source data (printouts or location of data) should be kept in the participants file.

The electronic data base will be backed up on a daily basis

Access to data:

The investigator will be able to allow access to data to the Sponsor (without identification data) as per request.

The investigator will be able to allow access to data to the Monitoring staff according to the monitoring plan that will be defined.

02

Conditions studied

  • Myopia

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Keywords

  • MYOPIA CONTROL
03

In context

Myopia

984 studies on the registry are indexed under Myopia; 210 are open to participants now.

This study's enrollment of 136 is above the median of 80 across 783 interventional studies indexed under Myopia.

Browse Myopia studies →

Lead sponsor

This is the only study on the registry with Shamir Optical Industry Ltd as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Years to 12 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Informed consent form signed and fully comprehended by the parent/legal representative of the participant
  • Age from 6 to 12 years old
  • Both male and female
  • Spherical Equivalent refractive error (cycloplegic objective) of -0.50D to -5.00D
  • Astigmatism not higher than -1.50D
  • Corrected Visual Acuity of not less than 6/7.5 or 20/25
  • Willing to wear the trial spectacles for the defined period according the protocol plan

Exclusion criteria

Exclusion Criteria:

  • Current participation in another clinical trial
  • Any general health or ocular health pathology that could affect the treatment
  • Allergy or intolerance to cycloplegic eye drops (name should be stated here)
  • Strabismus
  • Amblyopia
  • History of ocular injury or ocular surgery
  • Previously been treated with any myopia control treatments (Orthokeratology, myopia control spectacle/contact lenses, multifocal lenses, bifocal lenses, atropine)
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
136 participants (actual)

Study arms

  • Experimental
    Myopia control design spectacle lens

    Test lenses

    Device: Lenses

  • Other
    Single Vision design spectacle lens

    Control lenses

    Device: Lenses

Interventions

  • DeviceLenses

    The test lens is manufactured in a standard FreeForm technology (exactly like a standard progressive addition lens which is similar in terms of the graduall power profile induced in both lens). It does not demand any special manufacturing processes.

06

What researchers measure

Primary outcomes

  1. Refractive error

    Objective cycloplegic refractive error (Sphere equivalent)

    Time frame: 3 seconds

Secondary outcomes

  1. Axial length

    Time frame: 3 seconds

07

Study locations

1 site
  • "Maor" Institute Clinic
    Rishon LeZion, Israel
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 1, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05477329
Lead sponsor
Shamir Optical Industry Ltd
Responsible party
Sponsor
First posted
Jul 28, 2022
Start date
Jun 20, 2021
Primary completion
Jun 30, 2024 (estimated)
Completion
Dec 31, 2024 (estimated)
Last update
Aug 1, 2022

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.

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