NCT05527925

Brief Summary

Children have considerable plasticity of the visual system during the formation and maturation of various visual functions at different ages. Congenital cataracts are the leading cause of treatable blindness in children. With the continuous improvement of surgical approaches and surgical techniques, the success rate of congenital cataract surgery has been significantly improved clinically, and the visual function of children has been significantly improved after surgery. However, to date, there has been no experimental study of specific changes in the brain before and after surgery in children with congenital cataracts to explore its relationship with visual reconstruction. We aim to investigate the effects of congenital cataract surgery on the brain function and structure of children through preoperative and postoperative analysis and comparison of brain imaging such as BOLD-fMRI and DTI, and provide new ideas for the clinical treatment and prognostic assessment of this disease.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

April 1, 2019

Completed
3.4 years until next milestone

First Submitted

Initial submission to the registry

August 30, 2022

Completed
7 days until next milestone

First Posted

Study publicly available on registry

September 6, 2022

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2023

Completed
Last Updated

September 6, 2022

Status Verified

September 1, 2022

Enrollment Period

3.7 years

First QC Date

August 30, 2022

Last Update Submit

September 1, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change from functional magnetic resonance imaging

    1 week before surgery , 1 month, 3 month, 6 month after surgery

Secondary Outcomes (1)

  • Change from best corrected visual acuity

    1 week before surgery , 1 month, 3 month, 6 month after surgery

Study Arms (4)

Congenital cataracts children (0~3 years)

Children with congenital cataracts between the ages of 0 and 3 years

Device: MRI

Normal children (0~3 years)

Children without congenital cataracts between the ages of 0 and 3 years

Device: MRI

Congenital cataracts children (6~18 years)

Children with congenital cataracts between the ages of 6 and 18 years

Device: MRI

Normal children (6~18 years)

Children without congenital cataracts between the ages of 6 and 18 years

Device: MRI

Interventions

MRIDEVICE

Brain testing of patients using MRI

Congenital cataracts children (0~3 years)Congenital cataracts children (6~18 years)Normal children (0~3 years)Normal children (6~18 years)

Eligibility Criteria

Age3 Months - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Children with congenital cataracts

You may qualify if:

  • Children with congenital cataracts

You may not qualify if:

  • Other oculo-cerebral and systemic diseases that may affect the outcome

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

SunYat-senU

Guangzhou, Guangdong, 510000, China

RECRUITING

Study Officials

  • Haotian Lin

    Study Principal Investigator

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

August 30, 2022

First Posted

September 6, 2022

Study Start

April 1, 2019

Primary Completion

December 1, 2022

Study Completion

June 1, 2023

Last Updated

September 6, 2022

Record last verified: 2022-09

Locations