Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
NA
50 participants
INTERVENTIONAL
2024-05-31
2025-09-30
Brief Summary
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Detailed Description
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The hypothesis to be tested is that the proportion of participants with a lens wettability score of \> 3 (on a 5 point scale) with the enhanced surface treatment will be greater than that of the current lens surface, using a 1 to 5 scale
The primary outcome variable is lens wettability as measured on eye using a 1 to 5 scale
This clinical investigation will be a prospective, randomized, double-masked two-arm non-crossover trial.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
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Euclid orthokeartology (standard coating)
Euclid Orthokeratology Contact Lenses are lathe cut contact lenses with spherical posterior surfaces. The posterior curve is selected to properly fit an individual eye for orthokeratology and the anterior curve is selected to provide the necessary optical power for a temporary reduction of myopia. A peripheral curve system on the posterior surface allows tear exchange between the lens and the cornea.
Euclid orthokeratology (standard coating)
Lens with the current coating
Euclid orthokeartology (enhanced coating)
Euclid Orthokeratology Contact Lenses are lathe cut contact lenses with spherical posterior surfaces. The posterior curve is selected to properly fit an individual eye for orthokeratology and the anterior curve is selected to provide the necessary optical power for a temporary reduction of myopia. A peripheral curve system on the posterior surface allows tear exchange between the lens and the cornea.
Euclid orthokeratology (enhanced coating)
Lens with the enhanced coating
Interventions
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Euclid orthokeratology (standard coating)
Lens with the current coating
Euclid orthokeratology (enhanced coating)
Lens with the enhanced coating
Eligibility Criteria
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Inclusion Criteria
* Sign written Informed Consent (and the California Bill of Rights, if applicable).
* Ages 6-35 (inclusive) and able to understand and assent to participation
* Current wearers of Euclid Emerald (Oprifocon A) Orthokeratology lenses, which at initiation of fitting, had
* Need of optical correction for myopia, from -1.00 to -5.00 Diopters (D).
* Refractive astigmatism of less than -1.50 D.
* Have a minimum Best Spectacle Corrected Visual Acuity (BSCVA) of 20/40 or better in each eye.
* Have acceptable or optimal fit with study lenses (once fitting has been completed) and be willing to wear these lenses as directed for the duration of the study.
* On examination, have ocular findings considered to be within normal limits, including:
* No evidence of active infection involving the conjunctiva, lids or adnexa.
* No evidence of structural abnormalities of the lid, conjunctiva or adnexal tissue considered significant by the investigator to include minimum levels (Grade 2 or less) of tarsal-conjunctival abnormalities
* Clear corneas with no evidence of edema, staining, opacities, corneal neovascularization greater than a trace amount (i.e. All vessels extending less than 1.5 mm from the limbus); all as observed on slit lamp examination.
* No iritis.
* No herpes keratitis (recurrent or otherwise) or other active ocular disease that would contraindicate lens wear or lessen attainability of VA sought in this study (20/40 or better).
* No evidence of dry eye or meibomian gland dysfunction
* Normal binocularity (no amblyopia or strabismus, and no anisometropia of greater than 2.00D)
* Be willing and able to follow instructions and attend the schedule of follow-up visits.
* Not able or willing to provide informed consent and assent
* Requires concurrent ocular medication
* Eye injury or surgery within twelve weeks immediately prior to enrollment
* Pre-existing ocular condition that would preclude contact lens fitting
* Currently enrolled in an ophthalmic clinical trial
* Pregnant or lactating or expect to become pregnant during the trial
* Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
* Allergy or sensitivity to any product used in this trial
* Any systemic disease including autoimmune disease, immunocompromising diseases, connective tissue disease, clinically significant atopic diseases, insulin dependent diabetes, use of medications including corticosteroids and antimetabolites that may affect the eye or be exaggerated by contact lenses.
* Strabismus/amblyopia
* Habitual uncorrected anisometropia ≥ 2.00D
* Subjects who have undergone corneal refractive surgery
* Subjects with severe corneal irregularity contraindicating lens wear
* Inability to wear contact lenses, or an unacceptable contact lens fit
* Poor or unacceptable fit with any study lens
* Employees, staff or family members of personnel at the site
6 Years
35 Years
ALL
Yes
Sponsors
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Euclid Systems Corporation
INDUSTRY
Responsible Party
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Locations
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Cornea and Contact Lens Institute of Minnesota
Edina, Minnesota, United States
Pinecone Vision Center
Sartell, Minnesota, United States
Somerset Eye Care
North Brunswick, New Jersey, United States
Southern College of Optometry
Memphis, Tennessee, United States
Specialty Eyecare Group
Kirkland, Washington, United States
Countries
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Central Contacts
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Facility Contacts
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Zachary Holland
Role: primary
Trevor Fosso, OD
Role: primary
Tobin Ansel
Role: primary
Chris Lievens
Role: primary
David Kading
Role: primary
Other Identifiers
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EU-PHX-RCT-002
Identifier Type: -
Identifier Source: org_study_id