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Efficacy and Safety of Dual-Effect Myopia Control Lenses for Slowing Myopia Progression: A Single-Center, Randomized, Controlled, Noninferiority Trial

8 de noviembre de 2026 actualizado por: Zhongshan Ophthalmic Center, Sun Yat-sen University

This study aims to evaluate the efficacy and safety of dual-effect myopia control spectacle lenses in slowing myopia progression compared with Nikon MyoEase 2.0 lenses in children aged 8-13 years.

This is a single-center, randomized, open-label, parallel-group, noninferiority clinical trial. A total of 194 children with myopia will be randomly assigned in a 1:1 ratio to wear either dual-effect myopia control spectacle lenses or Nikon MyoEase 2.0 lenses for 12 months.

The primary outcome is the change in cycloplegic objective spherical equivalent refraction from baseline to 12 months. Secondary outcomes include changes in refractive error, ocular biometric parameters, visual acuity, binocular visual function, and visual questionnaire scores. Safety will also be assessed throughout the study.

Descripción general del estudio

Estado

Aún no reclutando

Condiciones

Intervención / Tratamiento

Tipo de estudio

Intervencionista

Inscripción (Estimado)

194

Fase

  • No aplica

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

8 años a 13 años (Niño)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  1. Aged 8-13 years, regardless of sex, with written consent from both the participant and their legal guardian.
  2. Cycloplegic objective spherical equivalent refraction between -4.75 D and -0.75 D (inclusive) in both eyes, astigmatism ≥-1.50 D, and an absolute interocular difference in spherical equivalent refraction ≤1.00 D.
  3. Best-corrected visual acuity ≥1.0 in both eyes.
  4. Intraocular pressure within the normal range (10-21 mmHg) in both eyes.
  5. Voluntary participation in the study with signed informed consent.

Exclusion Criteria:

  1. History of ocular trauma or intraocular surgery.
  2. Clinically abnormal slit-lamp examination findings.
  3. Fundus examination grade ≥2.
  4. Other ocular diseases, including uveitis or other ocular inflammation, glaucoma, cataract, fundus disease, ocular tumors, ocular trauma, manifest strabismus, or any ocular condition affecting visual function.
  5. Systemic diseases associated with immunodeficiency or conditions considered by the investigator unsuitable for spectacle wear, such as diabetes, Down syndrome, rheumatoid arthritis, or psychiatric disorders.
  6. Participation in a drug clinical trial within the previous 3 months or a medical device clinical trial within the previous month.
  7. Meeting the inclusion criteria in only one eye.
  8. Inability to attend regular ophthalmic examinations.
  9. Participation in any myopia control clinical trial within the previous 3 months, or previous or current use of rigid contact lenses (including associated care products), multifocal contact lenses, progressive addition lenses or other specially designed myopia control spectacle lenses, or atropine.
  10. Deemed ineligible by the investigator.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Único

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Dual-Effect Myopia Control Lenses

Participants in this group will wear dual-effect myopia control spectacle lenses for 12 months, with a recommended daily wearing time of at least 12 hours.

Dual-effect myopia control spectacle lenses manufactured by Jiangsu Kangmeida Optical Co., Ltd. Participants will be advised to wear the spectacles for at least 12 hours per day for 12 months.

Comparador activo: Nikon Kongyoudian 2.0 Lenses

Participants in this group will wear Nikon Kongyoudian 2.0 spectacle lenses for 12 months, following the same wearing instructions as the experimental group.

Nikon Kongyoudian 2.0 spectacle lenses manufactured by Nikon Optical Co., Ltd. The lenses will be used in the same manner as the investigational lenses for 12 months.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Cycloplegic Spherical Equivalent Refraction at 12 Months
Periodo de tiempo: Baseline and 12 months (±30 days)

Change in spherical equivalent refraction (SER) from baseline to 12 months, measured by objective autorefraction under cycloplegia. SER is calculated as sphere power plus half the cylinder power, expressed in diopters (D).

Baseline and 12 months (±30 days)

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Axial Length
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in axial length from baseline, measured before cycloplegia using optical biometry.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Change in Cycloplegic Spherical Equivalent Refraction at 6 Months
Periodo de tiempo: Baseline and 6 months (±30 days)

Change in spherical equivalent refraction (SER) from baseline to 6 months, measured by objective autorefraction under cycloplegia, expressed in diopters (D).

Baseline and 6 months (±30 days)
Visual Acuity With Study Spectacles
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Visual acuity measured while wearing the assigned study spectacles.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Change in Corneal Curvature
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in corneal curvature from baseline, measured before cycloplegia using optical biometry.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Change in Anterior Chamber Depth
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in anterior chamber depth from baseline, measured before cycloplegia using optical biometry.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Change in Lens Thickness
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in crystalline lens thickness from baseline, measured before cycloplegia using optical biometry.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Change in Subjective Refraction
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in subjective refraction from baseline, assessed before cycloplegia.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Best-Corrected Visual Acuity
Periodo de tiempo: 6 months (±30 days) and 12 months (±30 days)

Best-corrected visual acuity assessed using an ETDRS logMAR E chart.

6 months (±30 days) and 12 months (±30 days)
Change in Binocular Visual Function
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Change in binocular visual function from baseline, assessed at follow-up visits.

Baseline, 6 months (±30 days), and 12 months (±30 days)
Visual Questionnaire Score
Periodo de tiempo: 6 months (±30 days) and 12 months (±30 days)

Visual assessment using the Chinese version of the PRER2 questionnaire.

6 months (±30 days) and 12 months (±30 days)

Otras medidas de resultado

Medida de resultado
Medida Descripción
Periodo de tiempo
Incidence of Adverse Events and Serious Adverse Events
Periodo de tiempo: Throughout the 12-month study period

Occurrence of symptoms, signs, complications, adverse events, and serious adverse events related to the study products or procedures.

Throughout the 12-month study period
Intraocular Pressure
Periodo de tiempo: 6 months (±30 days), and 12 months (±30 days)

Intraocular pressure measured using non-contact tonometry, expressed in mmHg.

6 months (±30 days), and 12 months (±30 days)
Fundus Examination Grade
Periodo de tiempo: 6 months (±30 days), and 12 months (±30 days)

Fundus findings assessed and graded according to the study protocol.

6 months (±30 days), and 12 months (±30 days)
Spectacle Frame Position Assessment
Periodo de tiempo: Baseline, 6 months (±30 days), and 12 months (±30 days)

Assessment of spectacle frame positioning and lens condition according to the study protocol.

Baseline, 6 months (±30 days), and 12 months (±30 days)

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Colaboradores

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Estimado)

1 de diciembre de 2026

Finalización primaria (Estimado)

31 de diciembre de 2027

Finalización del estudio (Estimado)

31 de diciembre de 2027

Fechas de registro del estudio

Enviado por primera vez

8 de noviembre de 2026

Primero enviado que cumplió con los criterios de control de calidad

8 de noviembre de 2026

Publicado por primera vez (Actual)

13 de noviembre de 2026

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

13 de noviembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

8 de noviembre de 2026

Última verificación

1 de noviembre de 2026

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • 2026KYPJ157

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

NO

Descripción del plan IPD

Individual participant data will not be shared with external researchers.

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

No

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .