- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04048148
Myopia Progression Trial With Novel Myopia Control Design Spectacle Lenses
A Double-masked, Randomized, Cross-over Comparative Study of Novel Myopia Control Designed Lens (Test Lens) Versus Single Vision Lens (SVL; Control)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Myopia has been considered as a 'global epidemic' owing to its rapid rise in prevalence across the world. Myopia significantly affects the quality of life of an individual socially by restriction of employment in various fields and economically by additional cost for eye care and spectacles and contact lenses (Lim, Gazzard et al. 2009). In addition, high myopia increases the risk of ocular morbidity such as retinal detachment, cataract, glaucoma which can could lead to blindness. Several optical and pharmaceutical strategies were developed over the recent years that could control or slow the progression of myopia.
It has been shown that persistent myopic defocus constantly applied on the whole retina has a beneficial effect on myopia progression, i.e. decrease in myopia progression (Anstice and Phillips 2011, Cheng, Woo et al. 2011, Ehsaei, Chisholm et al. 2011). In addition, a meta-analysis on the efficacy of non-invasive optical treatment strategies for myopia control reported prismatic bifocals to have the best outcome (Cheng, Woo et al. 2011). Therefore, test lenses were designed to increase the area and amount of myopic defocus on the retina without compromising vision.
Thus, this study aims to evaluate the efficacy of test lenses to reduce the progression of myopia by either reducing the myopia progression rate per year and/or reducing the elongation of eyeball through myopic defocus compared with SVL. A total of 120 healthy children aged 8 to 13 years will be recruited to participate in a double-masked cross-over clinical trial. Cycloplegic autorefraction will be the primary measure for myopia progression and axial length will the secondary outcome measure. Visual acuity will also be compared between test lens and control lens to determine the quality of vision using test lens.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Ho Chi Minh City, Vietnam, 700000
- Hai Yen Eye Care
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
General inclusion criterion:
- Volunteer subject and guardian, fluent Vietnamese spoken, willing to follow the protocol and able to read, comprehend and sign the informed consent form.
Study related inclusion criteria:
- Age: equal to or greater than 8 years and not older than 13 years.
- Spherical refractive error of -0.75 to -4.75 D in each eye (spherical equivalent), as measured by cycloplegic autorefraction.
- Astigmatism of not more than 1.50 D.
- Anisometropia of not more than 1.00 D.
- Best corrected visual acuity of equal or better than 0.05 LogMAR
- No strabismus by cover test at near and distance.
- Have the ability to comply with the protocol to get the reliable study measurements.
- Absence of ocular disease with full ophthalmic examination, such as retinal disease, cataract and ptosis. Good general health, without systemic or neurodevelopmental conditions. Without ocular or systemic medicine, which might affect myopia progression or visual acuity through known effects on retina, accommodation or significant elevation of intraocular pressure.
- No history of progressive addition lenses (PALs) or bifocal use and no prior use of contact lenses
Exclusion Criteria:
General exclusion criteria:
- Vulnerability of the subject,
- Participation in another study which might have an influence on vision or interfere with study assessments.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Novel myopia control lenses
This group will be randomized to wear test lenses for 6 months followed by control lenses for 6 months and then test lenses for another 6 months
|
A novel designed myopia control spectacle lenses (test lenses) will be given to both arms to wear for 12 months.
|
Other: Single vision lenses
This group will be randomized to wear control lenses for 6 months followed by test lenses for 12 months
|
A novel designed myopia control spectacle lenses (test lenses) will be given to both arms to wear for 12 months.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cycloplegic refraction
Time Frame: Up to 18 months
|
Change in myopia progression measured by cycloplegic refraction (Diopters) using Shin Nippon Auto-refractor
|
Up to 18 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Axial length
Time Frame: Up to 18 months
|
Change in ocular axial length (mm) measured using Lenstar Optical Biometer
|
Up to 18 months
|
Collaborators and Investigators
Sponsor
Investigators
- Study Director: Padmaja Sankaridurg, PhD, Brien Holden Vision Institute
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- VCRTC2019-01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Supporting Information Type
- Clinical Study Report (CSR)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Myopia
-
He Eye HospitalNot yet recruiting
-
University of BradfordCoopervision, Inc.; University of HuddersfieldNot yet recruiting
-
Visioneering Technologies, IncRecruitingMyopiaUnited States, Canada, Hong Kong, Singapore
-
University Eye Hospital, FreiburgRecruiting
-
Shanghai 10th People's HospitalCompletedMyopia | Myopia, ProgressiveChina
-
Tianjin Eye HospitalActive, not recruiting
-
Tianjin Eye HospitalCompleted
-
Sultan Qaboos UniversityChristian Medical College, Vellore, IndiaUnknown
-
Peking University People's HospitalUnknownProgressive MyopiaChina
-
Shanghai Eye Disease Prevention and Treatment CenterNot yet recruiting
Clinical Trials on Novel designed myopia control spectacle lenses
-
SightGlass Vision, Inc.Active, not recruiting
-
SightGlass Vision, Inc.Active, not recruitingJuvenile MyopiaUnited States, Canada
-
SightGlass Vision, Inc.Active, not recruitingMyopia | Juvenile MyopiaUnited States, Canada
-
SightGlass Vision, Inc.CompletedMyopia | Myopia Progression | Juvenile MyopiaUnited States
-
Zhongshan Ophthalmic Center, Sun Yat-sen UniversityActive, not recruiting
-
Essilor InternationalActive, not recruitingMyopia | Myopia, ProgressiveSingapore
-
Essilor InternationalActive, not recruiting
-
Essilor InternationalActive, not recruiting
-
Essilor InternationalActive, not recruiting
-
SightGlass Vision, Inc.RecruitingMyopia | Myopia Progression | Juvenile MyopiaUnited States