NCT04699357

Brief Summary

Objective: to evaluate the efficacy of different concentrations of atropine eye drops in controlling the progression (diopter, axial length) of high myopia in young children, and to compare the compliance, adverse reaction and regression rate of different concentrations of atropine eye drops in myopia control. Intervention: Group 1 (0.01% atropine group), Group 2 (0.04% atropine group), Group 3 (0.1% atropine group). During the 2-year intervention period after entering the group, each concentration of atropine eye drops were given every night at a fixed time before going to bed, one drop each time, implemented by parents (supervision), and the wechat small program was completed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
219

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2021

Typical duration for not_applicable

Geographic Reach
1 country

3 active sites

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 6, 2021

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 7, 2021

Completed
6 months until next milestone

Study Start

First participant enrolled

July 4, 2021

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 21, 2024

Completed
11 days until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2024

Completed
Last Updated

March 12, 2026

Status Verified

January 1, 2026

Enrollment Period

3.1 years

First QC Date

January 6, 2021

Last Update Submit

March 10, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes of spherical equivalent

    Spherical equivalent as measured by cycloplegia autorefraction

    at least 2 years

Secondary Outcomes (5)

  • Change in axial length

    at least 2 years

  • Best corrected vision acuity (BCVA)

    at least 2 years

  • Intraocular pressure (IOP)

    at least 2 years

  • Pupil size

    at least 2 years

  • Accommodative function

    at least 2 years

Study Arms (3)

Group 1

ACTIVE COMPARATOR

0.01% atropine

Drug: Atropine

Group 2

EXPERIMENTAL

0.04% atropine

Drug: Atropine

Group 3

EXPERIMENTAL

0.1% atropine

Drug: Atropine

Interventions

different concentrations (0.01%/0.04%/0.1%) of atropine were administered to high myopic children

Group 1Group 2Group 3

Eligibility Criteria

Age6 Years - 12 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • At least one eye with cycloplegic optometric spherical equivalent of -5.00 to -10.00D and best corrected distant visual acuity of at least 0.5 and near visual acuity of at least 1.0, Titmus Stereo acuity ≤ 80 seconds, Vision with external occultation of ≤ 10 prismatic diopters , vision with internal occultation of ≤ 6-8 prismatic diopters, and astigmatism equal to or less than -2.50D;
  • Myopia progression greater than 0.5D in the past year;
  • Possess normal cognitive and verbal communication abilities to actively cooperate with the prescribed treatment;
  • Written informed consent from the guardian and the child.

You may not qualify if:

  • Diseases of the study eye: keratitis, cone cornea, congenital cataract, glaucoma, fundus diseases; combined with inflammation of the anterior or posterior segment of the eye, such as acute conjunctivitis, iridocyclitis;
  • Systemic diseases affecting the use of drugs: albinism, epilepsy, severe psychoneurological disorders, congenital heart disease, cardiac arrhythmias;
  • Atropine allergy;
  • Very low birth weight less than 1500 g;
  • Previous treatment with anticholinergics including atropine within the previous 1 year, or use of OK lenses, multifocal soft lenses within 3 months;
  • Other conditions judged by the investigator to be unsuitable for participation in the trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Shanghai Eye Disease Prevention & Treatment Center

Shanghai, Shanghai Municipality, 200040, China

Location

Shanghai General Hospital

Shanghai, China

Location

Shanghai Ninth People's Hospital

Shanghai, China

Location

MeSH Terms

Interventions

Atropine

Intervention Hierarchy (Ancestors)

Atropine DerivativesTropanesAzabicyclo CompoundsAza CompoundsOrganic ChemicalsBelladonna AlkaloidsSolanaceous AlkaloidsAlkaloidsHeterocyclic CompoundsBridged Bicyclo Compounds, HeterocyclicHeterocyclic Compounds, Bridged-Ring

Study Officials

  • Xun Xu, MD

    Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 6, 2021

First Posted

January 7, 2021

Study Start

July 4, 2021

Primary Completion

August 21, 2024

Study Completion

September 1, 2024

Last Updated

March 12, 2026

Record last verified: 2026-01

Locations