NCT03063216

Brief Summary

The purpose of this study is to evaluate the long-term visual outcome of the cataract surgery using a large-scale and comprehensive database of pediatric cataract participants, including congenital and traumatic cataract. The investigators will further investigate into the various genetic and environmental factors that may contribute to the pathogenesis of pediatric cataract.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
10,000

participants targeted

Target at P75+ for all trials

Timeline
239mo left

Started Jan 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress47%
Jan 2009Dec 2045

Study Start

First participant enrolled

January 1, 2009

Completed
8.1 years until next milestone

First Submitted

Initial submission to the registry

February 21, 2017

Completed
3 days until next milestone

First Posted

Study publicly available on registry

February 24, 2017

Completed
18.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2035

Expected
10 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2045

Last Updated

September 27, 2024

Status Verified

September 1, 2024

Enrollment Period

27 years

First QC Date

February 21, 2017

Last Update Submit

September 25, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • Differences in the visual outcomes of pediatric cataract patients.

    Visual outcomes are evaluated including visual acuity with or without correction, refractive changes, intraocular pressure, fundus function, fixation type, vision development, growth of axial length, contrast sensitivity and other visual outcome measurements.

    Follow-up until ten years after surgery.

  • Genetic diversity based on biospecimen samples of pediatric cataract patients.

    Sequencing of genes (including exons, promoters, 5' UTR and 3' UTR sequences) on a large scale to intensively investigate into the sites and functions of single nucleotide polymorphism (SNP) correlated with clinical features of congenital cataract patients, compared to traumatic cataract patients.Samples of blood, aqueous humor, anterior capsular membranes and lens tissues were applied for the genetic analysis.

    Analyzed within six months after surgery.

Secondary Outcomes (1)

  • Differences in the clinical phenotypes of pediatric cataract patients.

    Evaluated before receiving the cataract surgery.

Study Arms (2)

Congenital cataract group

Cataract patients diagnosed with congenital cataract.

Procedure: intraocular lens implantation

Traumatic cataract group

Cataract patients diagnosed with traumatic cataract.

Procedure: intraocular lens implantation

Interventions

1)Pediatric cataract patients with intraocular lens implantation and those without intraocular lens implantation;2)Traumatic cataract patients with intraocular lens implantation and those without intraocular lens implantation

Congenital cataract groupTraumatic cataract group

Eligibility Criteria

Age2 Months - 20 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodProbability Sample
Study Population

Medical centre: Eye and ENT Hospital of Fudan University

You may qualify if:

  • Clinical diagnosis of pediatric cataract
  • Must be able to cooperate with the ophthalmic examination

You may not qualify if:

  • Clinical diagnosis of mental illness
  • Mentally disabled

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Eye and ENT Hospital of Fudan University

Shanghai, Shanghai Municipality, 200031, China

RECRUITING

Related Publications (1)

  • Zhu X, He W, Du Y, Kraus CL, Xu Q, Sun T, Yu J, Lu Y. Presence of Posterior Staphyloma in Congenital Cataract Children. Curr Eye Res. 2019 Dec;44(12):1319-1324. doi: 10.1080/02713683.2019.1637437. Epub 2019 Jul 5.

Biospecimen

Retention: SAMPLES WITH DNA

Samples of blood, aqueous humor, anterior capsular membranes and lens tissues from pediatric cataract patients.

MeSH Terms

Conditions

Anticipation, Genetic

Interventions

Lens Implantation, Intraocular

Condition Hierarchy (Ancestors)

Genetic Predisposition to DiseaseDisease SusceptibilityDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Refractive Surgical ProceduresOphthalmologic Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • Yi Lu, M.D.

    Eye and ENT Hospital of Fudan University

    STUDY CHAIR
  • Xiangjia Zhu, M.D.

    Eye and ENT Hospital of Fudan University

    STUDY DIRECTOR
  • Keke Zhang, M.D.

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR
  • Wenwen He, M.D.

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR
  • Yu Du, M.D.

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR
  • Yinglei Zhang, M.D.

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR
  • Ruiqi Chang, M.D.

    Eye and ENT Hospital of Fudan University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Target Duration
10 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 21, 2017

First Posted

February 24, 2017

Study Start

January 1, 2009

Primary Completion (Estimated)

December 31, 2035

Study Completion (Estimated)

December 31, 2045

Last Updated

September 27, 2024

Record last verified: 2024-09

Locations