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MyopiaNCT05477329

CHILDREN MYOPIA CONTROL

A study testing Lenses in people with Myopia, run by Shamir Optical Industry Ltd at 1 site in Israel.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial 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 more about this study

Who is it for?
Ages 6 to 12 yearsHealthy volunteers can take part
Conditions the study is for
Myopia
What is being tested?
Lenses
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
136 participants
Where
1 siteIsrael
Study dates
20 Jun 2021to 31 Dec 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 12 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • 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

Who cannot join

  • 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)

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • "Maor" Institute Clinic

    Rishon LeZiyyon

Other trials in Israel

About this study

Official title: EVALUATING THE EFFECT OF A MYOPIA CONTROL SPECTACLE LENS COMPARED TO A SINGLE VISION SPECTACLE LENS AMONG CHILDREN IN ISRAEL

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.

Conditions
Myopia
Being tested
Lenses
Keywords
MYOPIA CONTROL
Medical subject headings
Myopia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LensesDevice

    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.

Study groups in NCT05477329
Study groupRoleWhat they receive
Myopia control design spectacle lensExperimentalTest lenses
Receives: Device: Lenses
Single Vision design spectacle lensOtherControl lenses
Receives: Device: Lenses

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Refractive error

    Objective cycloplegic refractive error (Sphere equivalent)

    Measured: 3 seconds

Secondary outcomes (1)
  1. Axial length

    Measured: 3 seconds

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jul 2022
  2. Study start20 Jun 2021
  3. Primary completion30 Jun 2024 (estimated)
  4. Study completion31 Dec 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
This will be a controlled, randomized, double-masked trial. The Test group will wear the myopia control spectacle lens and the Control group will wear the single vision spectacle lens.
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
136 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05477329
Sponsor's protocol ID
MCIS2021
Status last verified
Jul 2022
First submitted
26 Jul 2022
Last updated
1 Aug 2022
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Lenses in people with Myopia, run by Shamir Optical Industry Ltd at 1 site in Israel.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 1 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Israel. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Refractive error (time frame: 3 seconds). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Aug 2022.

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