NCT01045616

Brief Summary

Children born with very low birth weight and extremely low birth weight are at increased risk of various ophthalmic challenges such as retinopathy of prematurity (ROP), refractive error, strabismus, cerebral visual impairment, colour vision deficits, reduced contrast sensitivity (CS), visual field defects, and decreased visual acuity (VA). Many of these factors are not independent of each other. Among them, refractive error is a really common disorder. These can cause significant disability which can impact life's activities and, qualities. Currently, no standard guidelines are available toward the provision of ophthalmic follow up care for preterm infants. It is important to survey the prevalence of different ophthalmic sequelae in Taiwan, to identify the risk factors of developing these sequelae, and, furthermore, to build up a screening program. The preterm population has heterogeneous conditions to developing ophthalmic sequelae. National Taiwan University Hospital (NTUH) is now in charge of a big part of intense care for these low birth weight preterm neonates. With detailed medical record done of these children during care in the neonatal unit, we are competence for this meaningful program.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jul 2008

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

July 1, 2008

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

January 8, 2010

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 11, 2010

Completed
Last Updated

January 11, 2010

Status Verified

January 1, 2010

Enrollment Period

1.4 years

First QC Date

January 8, 2010

Last Update Submit

January 8, 2010

Conditions

Outcome Measures

Primary Outcomes (1)

  • The refractive status of these children born prematurely

    from 2008/7 - 2009/12

Secondary Outcomes (1)

  • other ophthalmological problems of these children born prematurely

    from 2008-7 to 2009-12

Study Arms (1)

Prematurity

Eligibility Criteria

Age7 Years - 9 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Children with premature birth history born between January 1, 1999 and December 30, 2001 in National Taiwan University Hospital

You may qualify if:

  • (1) born at post-conception age of less than 35 weeks or with birth weight of less than 1500 gm.
  • (2) complete medical records and ophthalmic records available

You may not qualify if:

  • if unable to communicate or have ophthalmological examinations done due to cognitive defect.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital

Taipei, Taiwan

Location

Related Publications (1)

  • Chen TC, Tsai TH, Shih YF, Yeh PT, Yang CH, Hu FC, Lin LL, Yang CM. Long-term evaluation of refractive status and optical components in eyes of children born prematurely. Invest Ophthalmol Vis Sci. 2010 Dec;51(12):6140-8. doi: 10.1167/iovs.10-5234. Epub 2010 Aug 4.

MeSH Terms

Conditions

Premature Birth

Condition Hierarchy (Ancestors)

Obstetric Labor, PrematureObstetric Labor ComplicationsPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital Diseases

Study Officials

  • CHUNG-MAY YANG, MD

    National Taiwan University Hospital

    STUDY DIRECTOR
  • Tzu-Hsun Tsai, MD

    National Taiwan University Hospital

    STUDY DIRECTOR
  • Ta-Ching Chen, MD

    National Taiwan University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER

Study Record Dates

First Submitted

January 8, 2010

First Posted

January 11, 2010

Study Start

July 1, 2008

Primary Completion

December 1, 2009

Study Completion

December 1, 2009

Last Updated

January 11, 2010

Record last verified: 2010-01

Locations