- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05243836
S.T.O.P.® Technology Contact Lenses Versus Dual-focus Contact Lenses for Slowing Down Myopia Progression in Children
Contact Lenses Utilising S.T.O.P.® Technology Versus Dual-focus Contact Lenses for Slowing Down Myopia Progression in Children: A Three-year Prospective, Multi-centre, Controlled, Masked, Randomised, Non Inferiority Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Myopic children (8-14 years of age) will be randomly allocated to wear one of 3 contact lens options (MiSight®, S.T.O.P.®- F2 or S.T.O.P.®- DT) bilaterally on a daily wear basis. The overall trial duration, including follow-up period, is expected to be approximately 48 months. Each participant's duration is expected to be approximately 36 months.
The visits are Baseline / Fit, Dispensing, 1 week, 1 month, 6 months then visits every 6 months after.
All procedures performed at these visits are standard, non invasive clinical tests.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Daniel Tilia, MOptom, PhD
- Phone Number: +61290377700
- Email: d.tilia@nthalmic.com
Study Locations
-
-
Lucheng District
-
Wenzhou, Lucheng District, China, 325027
- Recruiting
- Wenzhou Medical University Eye Hospital
-
Contact:
- Jiang Jun
- Email: jjhsj@hotmail.com
-
Principal Investigator:
- Jiang Jun
-
-
Wuqing District
-
Tianjin, Wuqing District, China, 300384
- Recruiting
- Tianjin Medical University
-
Contact:
- Lin Liu
- Email: liulin_117@126.com
-
Principal Investigator:
- Lin Liu
-
-
Xuhui District
-
Shanghai, Xuhui District, China, 200031
- Recruiting
- Shanghai Fudan University Eye and ENT Hospital
-
Contact:
- Zhi Chen, MD, PhD
- Phone Number: +86-13761681740
- Email: peter459@aliyun.com
-
Contact:
- Jia Qi Zhou, MD, PhD
- Phone Number: +86-13917873415
- Email: qiqi_zjq@163.com
-
Principal Investigator:
- Xing Tao Zhou, MD, PhD
-
Sub-Investigator:
- Zhi Chen, MD, PhD
-
Sub-Investigator:
- Jia Qi Zhou, MD, PhD
-
-
-
-
Telangana
-
Hyderabad, Telangana, India, 500034
- Recruiting
- LV Prasad Eye Institute
-
Contact:
- Pavan Verkicharla
- Email: pavanverkicharla@lvpei.org
-
Principal Investigator:
- Pavan K Verkicharla
-
Sub-Investigator:
- Swati Panigrahi
-
Sub-Investigator:
- Megha Anthony
-
Hyderabad, Telangana, India, 500046
- Not yet recruiting
- The University of Hyderabad
-
Contact:
- Nagaraju Konda
- Phone Number: 91 40 2313 5482
- Email: knr@uohyd.ac.in
-
Principal Investigator:
- Nagaraju Konda
-
Sub-Investigator:
- M Radhika
-
-
-
-
-
Madrid, Spain, 28037
- Recruiting
- Ocupharm Research Group (Clinica Universitaria de Optometría), Universidad Complutense Madrid
-
Contact:
- Gonzalo Carracedo Rodríguez, PhD
- Phone Number: +34616513539
- Email: jgcarrac@ucm.es
-
Contact:
- Laura Batres, PhD
- Phone Number: +34913946883
- Email: lbatres@ucm.es
-
Principal Investigator:
- Gonzalo Carracedo Rodríguez, PhD
-
Sub-Investigator:
- Laura Batres, PhD
-
-
Barcelona
-
Terrassa, Barcelona, Spain, 08222
- Recruiting
- Centre Universitari de la Visió
-
Contact:
- Nuria E Tomas Corominas
- Phone Number: +34 937 39 83 49
- Email: nuria.tomas@upc.edu
-
Contact:
- Juan Perez Corral
- Email: juan.enrique.perez@upc.edu
-
Principal Investigator:
- Nuria Tomas Corominas
-
Sub-Investigator:
- Juan Perez Corral
-
-
Galicia
-
Santiago De Compostela, Galicia, Spain, 15899
- Not yet recruiting
- Lab. de Superficie Ocular y Lentes de Contacto (SOYLC)
-
Contact:
- Javier Gonzalez Perez
- Phone Number: +34 696809706
- Email: javier.gonzalez@usc.es
-
Principal Investigator:
- Javier Gonzalez Perez
-
Sub-Investigator:
- Ángel Sánchez García
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Be between 8-14.
Have:
- Read the Informed Assent.
- Been explained the Informed Assent.
- Indicated an understanding of the Informed Assent.
- Signed the Informed Assent.
Have their parent / legal guardian:
- Read the Informed Consent.
- Been explained the Informed Consent.
- Indicated an understanding of the Informed Consent.
- Signed the Informed Consent.
- Along with their parent / legal guardian, be capable of comprehending the nature of the study, and be willing and able to adhere to study requirements.
- Along with their parent / legal guardian, agree to maintain the visit schedule .
- Agree to wear allocated contact lenses for a minimum of 5 days per week, at least 6 hours per day on days lenses are worn but not > 16 hours per day, and to remove lenses at night (i.e., daily wear only with no contact lens wear during sleep), for their duration of the study and to inform the investigator if their schedule is interrupted. Wearing time can be modified by the investigator for health reasons.
- Possess wearable and visually functioning spectacles.
- Be in good general health, based on the parent's / legal guardian's knowledge.
- Have best-corrected high contrast visual acuity based on manifest refraction of 0.10 logMAR (20/25, 6/7.6) or better in each eye.
Meet the following criteria determined by cycloplegic autorefraction:
- Spherical equivalent between -0.75 to -4.00 D inclusive.
Astigmatism ≥ -1.00 D.
*participants who fail astigmatism criterion with autorefraction pass astigmatism criterion if ≥ -0.75 D is measured with subjective refraction.
- anisometropia ≤ 1.00 D.
Exclusion Criteria:
- Participant is currently, or within 30 days prior to this study, has been an active participant in another study.
Current or prior use of ANY form of myopia control, including but not limited to:
Optical devices.
- Bifocal / multifocal spectacles of any type.
- Bifocal / multifocal contact lenses of any type.
- Orthokeratology of any type.
Pharmacological agents.
- European and Indian sites: Atropine.
- Chinese sites: Atropine with a concentration > 0.01%. Participants who have previously used 0.01% atropine are eligible for this study provided they agree not to use 0.01% atropine for at least 30 days before baseline and at any time during the study.
- Pirenzepine.
- Participant born earlier than 30 weeks or weighed < 1500 g at birth.
- Habitual use of a systemic or topical medication that may alter normal ocular findings / is known to affect a participant's ocular health / physiology or contact lens performance either in an adverse or beneficial manner at enrolment and / or during the clinical trial.
- A known allergy to sodium fluorescein, benoxinate, proparacaine, or tropicamide.
- Chinese sites: A known allergy to cyclopentolate.
- A known corneal hypoesthesia (reduced corneal sensitivity), corneal ulcer, corneal infiltrates, ocular viral or fungal infections, or any other recurrent ocular infections.
- Strabismus by cover test at distance (3 m) or near (40 cm) while wearing distance correction under non-cycloplegic conditions.
Known ocular or systemic disease, such as but not limited to:
- Diabetes.
- Graves' disease.
- Glaucoma.
- Uveitis.
- Scleritis.
- Auto-immune diseases such as ankylosing spondylitis, multiple sclerosis, Sjogrens syndrome, and systemic lupus erythematosus.
Any ocular, systemic, or neuro-developmental conditions that could influence refractive development, such as but not limited to:
- Persistent pupillary membrane.
- Vitreous haemorrhage.
- Cataract.
- Central corneal scarring.
- Eyelid haemangiomas.
- Marfan's syndrome.
- Down's syndrome.
- Ehler's-Danlos syndrome.
- Stickler's syndrome.
- Ocular albinism.
- Retinopathy of prematurity.
- Keratoconus or irregular cornea.
Biomicroscopic that contraindicate contact lens, such as but limited to:
- Neovascularisation or ghost vessels ≥ 1.5 mm in from limbus.
- Any active anterior segment disease that contraindicates safe contact lens wear.
- Clinically significant giant papillary conjunctivitis.
- Clinically significant abnormalities of the anterior segment, lids, conjunctiva, sclera, or associated structures.
- Allergic or seasonal conjunctivitis if the investigator believes it could significantly interfere with maintaining a specified wearing schedule.
- The investigator may, at their discretion, exclude anyone who they believe may not be able to fulfil the clinical trial requirements or it is believed to be in the participant's best interests.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: MiSight®
MiSight® Contact Lens (Omafilcon A, 60% water)
|
Omafilcon A (60% water)
|
Experimental: S.T.O.P® F2
S.T.O.P® F2 Contact Lens (Ocufilcon D, 55% water)
|
Ocufilcon D, 55% water
|
Experimental: S.T.O.P® DT
S.T.O.P® DT Contact Lens (Ocufilcon D, 55% water)
|
Ocufilcon D, 55% water
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Axial Length
Time Frame: Baseline, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Difference in change from baseline in axial length between test and control contact lenses.
|
Baseline, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cycloplegic spherical equivalent autorefraction
Time Frame: Baseline, 12 months, 24 months, 36 months
|
Difference in change from baseline in spherical equivalent autorefraction between test and control contact lenses.
|
Baseline, 12 months, 24 months, 36 months
|
Visual performance as measured by high contrast visual acuity at 6 m
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in visual performance between test and control contact lenses
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Visual performance as measured by a non validated questionnaire based on a 1-10 numeric rating scale where a higher score indicates a better outcome
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in visual performance between test and control contact lenses
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Bulbar hyperemia graded on a 0-4 scale in 0.5- steps where a higher grading indicates increased hyperemia
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in bulbar hyperemia grading between test and control contact lenses.
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Limbal hyperemia graded on a 0-4 scale in 0.5- steps where a higher grading indicates increased hyperemia
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in limbal hyperemia grading between test and control contact lenses.
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Palpebral roughness graded on a 0-4 scale in 0.5- steps where a higher grading indicates increased roughness
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in palpebral roughness grading between test and control contact lenses.
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Corneal staining graded on a 0-4 scale in 0.5- steps where a higher grading indicates increased staining
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in corneal staining grading between test and control contact lenses.
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Conjunctival staining graded on a 0-4 scale in 0.5- steps where a higher grading indicates increased staining
Time Frame: 1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Differences in conjunctival staining grading between test and control contact lenses.
|
1 week, 1 month, 6 months, 12 months, 18 months , 24 months, 30 months, 36 months
|
Binocular vision as measured by heterophoria in prism diopters at 3 m
Time Frame: 1 week, 6 months, 18 months, 30 months
|
Differences in heterophoria at 3 m between test and control contact lenses.
|
1 week, 6 months, 18 months, 30 months
|
Binocular vision as measured by heterophoria in prism diopters at 40 cm
Time Frame: 1 week, 6 months, 18 months, 30 months
|
Differences in heterophoria at 40 cm between test and control contact lenses.
|
1 week, 6 months, 18 months, 30 months
|
Binocular vision as measured by monocular accommodative facility (+/-2.00 D flipper) in cycles per minute at 40 cm
Time Frame: 1 week, 6 months, 18 months, 30 months
|
Differences in monocular accommodative facility at 40 cm between test and control contact lenses.
|
1 week, 6 months, 18 months, 30 months
|
Binocular vision as measured by monocular accommodative response in diopters at 40 cm
Time Frame: 1 week, 6 months, 18 months, 30 months
|
Differences in monocular accommodative response at 40 cm between test and control contact lenses.
|
1 week, 6 months, 18 months, 30 months
|
Corneal topography as measured by flat keratometry measurement in diopters
Time Frame: Baseline, 12 months, 36 months
|
Differences in flat keratometry measurements between test and control contact lenses.
|
Baseline, 12 months, 36 months
|
Corneal topography as measured by steep keratometry measurement in diopters
Time Frame: Baseline, 12 months, 36 months
|
Differences in steep keratometry measurements between test and control contact lenses.
|
Baseline, 12 months, 36 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Daniel Tilia, MOptom, PhD, nthalmic Pty Ltd
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
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
- nthal2021-01
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
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.
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