NCT05760911

Brief Summary

The goal of this multi-center, randomized, parallel-controlled clinical trial is to evaluate the effectiveness of outdoor activities monitoring and motivating by smartwatches to prevent myopia progression in children. The main question it aims to answer are:

  1. 1.To evaluate the two-year change of spherical equivalent progression.
  2. 2.To evaluate the change in axial length, the incidence of myopia, the time of outdoor activity, the choroid thickness, and blood flow through the two-year intervention.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,200

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2023

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 15, 2023

Completed
22 days until next milestone

First Posted

Study publicly available on registry

March 9, 2023

Completed
6 days until next milestone

Study Start

First participant enrolled

March 15, 2023

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2024

Completed
Last Updated

March 9, 2023

Status Verified

March 1, 2023

Enrollment Period

1.3 years

First QC Date

February 15, 2023

Last Update Submit

March 5, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • The change of spherical equivalent

    The mean change of spherical equivalent after cycloplegia was calculated during the study.

    Two years

Secondary Outcomes (1)

  • The change of axial length

    Two years

Study Arms (2)

Outdoor activities motivating group

EXPERIMENTAL

Wear a smartwatch and receive Mini Program reminders and encouragement for outdoor activities. The required outdoor time is at least 2 hours from Monday to Friday and more than 2 hours on weekends.

Behavioral: Outdoor activities motivation with smartwatches

Outdoor activities monitoring group

NO INTERVENTION

Outdoor activities are monitored with smartwatches.

Interventions

Wearing a smartwatch and receiving outdoor activity reminders and encouragement through a mini-program. The required outdoor time is at least 2 hours from Monday to Friday, and more than 2 hours on weekends.

Outdoor activities motivating group

Eligibility Criteria

Age4 Years - 9 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Gender is not limited;
  • Age: 4 \~ 9 years old;
  • Spherical equivalent: -0.5D \< SE \< 2.5D;
  • Be able to follow up for at least 2 years;
  • Be able to wear a smartwatch on a daily basis as required;
  • Parents or guardians sign an informed consent form;
  • Children over 6 years old need oral consent to participate.

You may not qualify if:

  • Anisometropia \> 1.50D;
  • Using other interventions for controlling myopia including atropine, rigid orthokeratology lenses, bifocal lenses or progressive lenses, red light, acupuncture, etc.;
  • Strabismus and/or amblyopia;
  • Previous history of eye surgery (including strabismus correction);
  • Ocular or systemic diseases that may be related to the development of myopia or myopia: such as Marfan syndrome, neonatal retinopathy, diabetes, etc.;
  • Other circumstances that the investigator judges inappropriate to participate in the trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Myopia, Degenerative

Condition Hierarchy (Ancestors)

MyopiaRefractive ErrorsEye Diseases

Central Study Contacts

Haidong Zou, MD

CONTACT

Jun Chen, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 15, 2023

First Posted

March 9, 2023

Study Start

March 15, 2023

Primary Completion

June 30, 2024

Study Completion

September 30, 2024

Last Updated

March 9, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share