NCT05062031

Brief Summary

Myopia is the most common refractive disorder in the world. Many strategies have been developed to control myopia in children. Among them, the instillation of low-concentration atropine eyedrops has been proven to be effective in numerous publications. Nevertheless, the spreading of atropine use is limited by: (1) its uneven availability, (2) a proportion of children with no or poor response, (3) some issues of long-term compliance (4) the possibility of a rebound effect after treatment cessation. Among the non-drug myopia control strategies, corrective lenses including the Defocus Incorporated Multiple Segments® (DIMS®) technology have demonstrated their effectiveness in a previous study (Hong Kong) when compared to monofocal lenses. The aim of this study is to compare the efficacy of DIMS lenses alone versus atropine 0.05% eyedrops + monofocal lenses, on the evolution of ocular axial length at 2 years in myopic children.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
242

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

First Submitted

Initial submission to the registry

September 9, 2021

Completed
21 days until next milestone

First Posted

Study publicly available on registry

September 30, 2021

Completed
19 days until next milestone

Study Start

First participant enrolled

October 19, 2021

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2026

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2026

Completed
Last Updated

December 10, 2025

Status Verified

December 1, 2025

Enrollment Period

4.3 years

First QC Date

September 9, 2021

Last Update Submit

December 3, 2025

Conditions

Keywords

MyopiaPediatric ophthalmologyMyopia controlDefocus Incorporated Multiple Segments (DIMS) lensesLow concentration atropine

Outcome Measures

Primary Outcomes (2)

  • Axial length measurements

    Difference between the mean of 6 axial length measurements (in mm) acquired with the IOLMaster 500® at 24 months and the mean of 6 axial length measurements at inclusion

    Inclusion, 24 months

  • Spherical equivalent

    Difference in spherical equivalent (in diopters) under cycloplegia on autorefractometer at 24 months and at preinclusion

    Pre inclusion (screening consultation in the 15 days preceding inclusion), 24 months

Study Arms (2)

DIMS®

EXPERIMENTAL

Defocus Incorporated Multiple Segments® lenses

Device: Defocus Incorporated Multiple Segments® (DIMS®) lenses

Low-concentration atropine + monofocal lenses

ACTIVE COMPARATOR
Drug: Atropine 0.05% eyedropsDevice: Monofocal lenses

Interventions

Daily wear for 24 months. Lenses have a central monofocal optical zone correcting spherical or spherocylindrical ametropia, surrounded by a ring made up of 300 defocusing pellets. This lens geometry reduces the phenomenon of blurred image projected in the retinal periphery, encountered when myopic eyes are corrected with monofocal lenses.

Also known as: Miyosmart®
DIMS®

One drop each evening in both eyes for 24 months.

Also known as: Low-concentration atropine
Low-concentration atropine + monofocal lenses

Daily wear for 24 months

Low-concentration atropine + monofocal lenses

Eligibility Criteria

Age4 Years - 14 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Diagnosis of myopia - measured under cycloplegia - defined by:
  • A sphere power between -1 and -6 Diopters, on at least one of the two eyes
  • AND a cylindrical power strictly inferior to 2 Diopters
  • AND a maximum refractive error strictly inferior to 8 Diopters in the flattest axis
  • Not benefiting and never having benefited from a myopia control strategy (orthokeratology, soft defocusing lenses, low concentration atropine eye drops, peripheral defocusing corrective lenses)
  • Written consent of both parents

You may not qualify if:

  • History of genetic disease, or general condition suggesting a syndromic myopia (including an axial length greater than 27 mm)
  • Strabismus
  • Amblyopia defined by a best corrected visual acuity strictly inferior to 10/10 on one of the two eyes
  • Anisometropia defined by a difference of 2 Diopters or more between the two eyes (in spherical equivalent)
  • History of allergy to atropine
  • History of severe anaphylaxis
  • Optical correction with contact lenses
  • Previous ophthalmologic surgery of the cornea, lens, retina
  • History of glaucoma or any other chronic ophthalmological disease in the course of treatment (including vernal keratoconjunctivitis)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hôpital Fondation Adolphe de Rothschild

Paris, 75019, France

Location

MeSH Terms

Conditions

Myopia

Interventions

LensesAtropineOphthalmic Solutions

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Intervention Hierarchy (Ancestors)

Optical DevicesEquipment and SuppliesAtropine DerivativesTropanesAzabicyclo CompoundsAza CompoundsOrganic ChemicalsBelladonna AlkaloidsSolanaceous AlkaloidsAlkaloidsHeterocyclic CompoundsBridged Bicyclo Compounds, HeterocyclicHeterocyclic Compounds, Bridged-RingPharmaceutical SolutionsSolutionsPharmaceutical PreparationsTherapeutic UsesPharmacologic ActionsChemical Actions and UsesSpecialty Uses of Chemicals

Study Officials

  • Gilles MARTIN, MD

    Hôpital Fondation Adolphe de Rothschild

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 9, 2021

First Posted

September 30, 2021

Study Start

October 19, 2021

Primary Completion

February 1, 2026

Study Completion

February 1, 2026

Last Updated

December 10, 2025

Record last verified: 2025-12

Locations