Prueba 2 de diseño de lentes Euclid Phoenix
Prueba de diseño de lentes Euclid Phoenix, parte 2
Lens wettability and subjective comfort of Euclid orthokeratology lenses with and without an enhanced coating will be compared in 50 children. Axial elongation will be monitored in pediatric patients who qualify and consent.
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
This clinical investigation is a prospective, randomized, double-masked, two-arm non-crossover trial. Existing Euclid orthokeratology wearers are randomized to be fit in lenses either with the standard lens coating or with the enhanced lens coating containing MPC. Subjects are evaluated at Dispense (Day 0), 1-Day, 2-Week, 1-Month, and 3-Months. Participants under the age of 17 are presented with the option to participate in an optional 9-month study extension, over which axial length is monitored.
The primary objective of this trial is to provide an assessment of the lens wettability and patient comfort with an enhanced surface treatment for the Emerald Lens design when used by practitioners with moderate experience with fitting Euclid orthokeratology lenses.
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.
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Minnesota
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Edina, Minnesota, Estados Unidos, 55436
- Cornea and Contact Lens Institute of Minnesota
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Sartell, Minnesota, Estados Unidos, 56377
- Pinecone Vision Center
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New Jersey
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North Brunswick, New Jersey, Estados Unidos, 08902
- Somerset Eye Care
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Tennessee
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Memphis, Tennessee, Estados Unidos, 38104
- Southern College of Optometry
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Washington
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Kirkland, Washington, Estados Unidos, 98034
- Specialty Eyecare Group
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-
Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
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Be of legal age or, if under legal age have written consent of their parent or guardian to participate.
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Sign written Informed Consent (and the California Bill of Rights, if applicable).
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Ages 6-35 (inclusive) and able to understand and assent to participation
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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.
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Have a minimum Best Spectacle Corrected Visual Acuity (BSCVA) of 20/40 or better in each eye.
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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.
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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
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Normal binocularity (no amblyopia or strabismus, and no anisometropia of greater than 2.00D)
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Be willing and able to follow instructions and attend the schedule of follow-up visits.
Exclusion Criteria:
- Does not meet the any of the above inclusion criteria
- 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
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Cuadruplicar
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
|
Experimental: 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. |
Lens with the current coating |
|
Experimental: 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. |
Lens with the enhanced coating |
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Lens wettability
Periodo de tiempo: 12 months
|
Lens wettability as measured on eye using a 1 to 5 scale (5 better) |
12 months
|
Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Patient comfort ratings
Periodo de tiempo: 12 months
|
Patient comfort as measured by patient reported outcome using a 1 to 5 scale (5 better) |
12 months
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- EU-PHX-RCT-002
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
producto fabricado y exportado desde los EE. UU.
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