An Evaluation of the Effectiveness of Dual Focus Soft Contact Lenses in Slowing Mypoia Progression

NCT ID: NCT01729208

Last Updated: 2020-02-24

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

144 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-11-30

Study Completion Date

2019-05-31

Brief Summary

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The purpose of this study is to determine whether a new type of soft contact lens with a unique optical design (dual focus) is effective at slowing the progression of myopia (near-sightedness) in children.

Detailed Description

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Subjects were randomized to wear test or control soft contact lens to determine whether a new type of soft contact lens with a unique optical design (dual focus) is effective at slowing the progression of myopia (near-sightedness) in children.

Conditions

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Myopia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Dual Focus Soft Contact Lens

Dual Focus Soft Contact Lens

Group Type EXPERIMENTAL

Dual Focus Soft Contact Lens

Intervention Type DEVICE

Single Vision Soft Contact Lens

Single Vision Soft Contact Lens

Group Type PLACEBO_COMPARATOR

Single Vision Soft Contact Lens

Intervention Type DEVICE

Interventions

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Dual Focus Soft Contact Lens

Intervention Type DEVICE

Single Vision Soft Contact Lens

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Be between 8 and 12 years of age inclusive.
* Best-corrected visual acuity by manifest refraction of +0.10 logMAR.
* Spherical Equivalent Refractive Error between -0.75 and -4.00 D
* inclusive astigmatism: \< -0.75 D and anisometropia: \< 1.00 D
* Possess wearable and visually functional eyeglasses.
* Agree to wear the assigned contact lenses for a minimum of 10 hours per day, - at least 6 days per week, for the duration of the 3 year study.

Exclusion Criteria

* Subject has previously or currently wears contact lenses or rigid gas permeable contact lenses, including orthokeratology lenses.
* Subject is currently or within 30 days prior to this study has been an active participant in another clinical study.
* Current or prior use of bifocals, progressive addition lenses, atropine, pirenzepine or ANY other myopia control treatment.
* Regular use of ocular medications (prescription or over-the-counter), artificial tears, or wetting agents.
* Current use of systemic medications which may significantly affect contact lens wear, tear film production, pupil size, accommodation or refractive state.
* A known allergy to fluorescein, benoxinate, proparacaine or tropicamide.
* Strabismus by cover test at far (4 m) or near (40 cm) wearing distance correction.
* Any ocular, systemic or neuro-developmental conditions that could influence refractive development.
Minimum Eligible Age

8 Years

Maximum Eligible Age

12 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Visioncare Research Ltd.

OTHER

Sponsor Role collaborator

CooperVision, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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José Manuel González-Méijome

Role: PRINCIPAL_INVESTIGATOR

University of Minho

Locations

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University of Waterloo School of Optometry

Waterloo, Ontario, Canada

Site Status

University of Minho Clinical & Experiment Optometry Research Lab

Braga, , Portugal

Site Status

National University of Singapore Faculty of Medicine

Singapore, , Singapore

Site Status

Aston University Ophthalmic Research Group

Birmingham, , United Kingdom

Site Status

Countries

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Canada Portugal Singapore United Kingdom

References

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Chamberlain P, Hammond DS, Bradley A, Arumugam B, Richdale K, McNally J, Hunt C, Young G. Eye growth and myopia progression following cessation of myopia control therapy with a dual-focus soft contact lens. Optom Vis Sci. 2025 May 1;102(5):353-358. doi: 10.1097/OPX.0000000000002244. Epub 2025 Mar 24.

Reference Type DERIVED
PMID: 40132119 (View on PubMed)

Chamberlain P, Bradley A, Arumugam B, Hammond D, McNally J, Logan NS, Jones D, Ngo C, Peixoto-de-Matos SC, Hunt C, Young G. Long-term Effect of Dual-focus Contact Lenses on Myopia Progression in Children: A 6-year Multicenter Clinical Trial. Optom Vis Sci. 2022 Mar 1;99(3):204-212. doi: 10.1097/OPX.0000000000001873.

Reference Type DERIVED
PMID: 35086120 (View on PubMed)

Chamberlain P, Peixoto-de-Matos SC, Logan NS, Ngo C, Jones D, Young G. A 3-year Randomized Clinical Trial of MiSight Lenses for Myopia Control. Optom Vis Sci. 2019 Aug;96(8):556-567. doi: 10.1097/OPX.0000000000001410.

Reference Type DERIVED
PMID: 31343513 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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CVI08008

Identifier Type: -

Identifier Source: org_study_id

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