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Retinopathy of PrematurityNCT03334513

Refractive Error and Biometry in Retinopathy of Prematurity

An observational study of Retinopathy of Prematurity, run by San Ni Chen.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The investigators compared long-term refractive and biometric outcomes in children with retinopathy of prematurity who received two different anti-vascular endothelial growth factor agents. Read more about this study

Who is it for?
Ages 3 to 3 years
Conditions the study is for
Retinopathy of Prematurity
What is being tested?
Bevacizumab and Ranibizumab
Type of treatment
Injection or infusion
How many people
35 participants
Where
No sites listed yet
Study dates
1 Apr 2011to 1 Apr 2014
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 3 to 3 years
  • All sexes
  • No healthy volunteers
  • Child

Study population: infants who received intravitreal injection of ranibizumab or bevacizumab as the primary treatment

Who may be able to join

  • children with type 1 retinopathy of prematurity
  • children received anti-vascular endothelial growth factors (bevacizumab or ranibizumab)

Who cannot join

  • children withour retinopathy of prematurity
  • children with retinopathy of prematurity received laser therapy

About this study

Official title: Refractive and Biometric Outcomes in Patients With Retinopathy of Prematurity Treated With Intravitreal Injection of Ranibizumab as Compared With Bevacizumab - a Clinical Study of Correction at Three Years of Age

The investigators compared long-term refractive and biometric outcomes in children with retinopathy of prematurity who received two different anti-vascular endothelial growth factor agents.

Read the detailed description

Purpose:

To compare refractive and biometric outcomes in patients with type 1 retinopathy of prematurity (ROP) treated with intravitreal injection of Ranibizumab (IVR), versus bevacizumab (IVB), at a corrected age of 3 years.

Methods:

A retrospective case series compared cycloplegic refractive statuses and biometric statuses in patients who received either IVR or IVB for Type 1 ROP, from April 2011 to April 2014.

Comparison of refractive errors and biometric findings between the two groups was performmed and multivariate analysis of possible factors contributive to visual acuity was also performmed

Keywords
Bevacizumab, Biometry, Ranibizumab, Refractive error, Retinopathy of prematurity
Medical subject headings
Retinopathy of Prematurity, Refractive Errors

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BevacizumabDrug

    Also called avastin

    intravitreal injection of bevacizumab

  • RanibizumabDrug

    Also called lucentis

    intravitreal injection of ranibizumab

Study groups in NCT03334513
Study groupRoleWhat they receive
ROP groupchildren with retinopathy of prematurity received either bevacizumab or ranibizumab
Receives: Drug: Bevacizumab; Drug: Ranibizumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. spherical equivalent

    spherical power + half of cylinder power

    Measured: at corrected age of 3 year-old

  2. astigmatism

    in cylinder power

    Measured: at corrected age of 3 year-old

Secondary outcomes (4)
  1. axial length

    axial length in mm

    Measured: at corrected age of 3 year-old

  2. cornea radius

    cornea radius in mm

    Measured: at corrected age of 3 year-old

  3. anterior chamber depth

    anterior chamber depth in mm

    Measured: at corrected age of 3 year-old

  4. lens thickness

    lens thickness in mm

    Measured: at corrected age of 3 year-old

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Nov 2017
  2. Study start1 Apr 2011
  3. Primary completion1 Apr 2014
  4. Study completion1 Apr 2014

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Retrospective
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03334513
Sponsor's protocol ID
171026
Status last verified
Nov 2017
First submitted
1 Nov 2017
Last updated
7 Nov 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Chen SN, Lian I, Hwang YC, Chen YH, Chang YC, Lee KH, Chuang CC, Wu WC. Intravitreal anti-vascular endothelial growth factor treatment for retinopathy of prematurity: comparison between Ranibizumab and Bevacizumab. Retina. 2015 Apr;35(4):667-74. doi: 10.1097/IAE.0000000000000380.

    PubMed 25462435
  • Chen YC, Chen SN, Yang BC, Lee KH, Chuang CC, Cheng CY. Refractive and Biometric Outcomes in Patients with Retinopathy of Prematurity Treated with Intravitreal Injection of Ranibizumab as Compared with Bevacizumab: A Clinical Study of Correction at Three Years of Age. J Ophthalmol. 2018 Mar 11;2018:4565216. doi: 10.1155/2018/4565216. eCollection 2018.

    PubMed 29713524

Questions about this trial

What is this clinical trial studying?

An observational study of Retinopathy of Prematurity, run by San Ni Chen.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

spherical equivalent (time frame: at corrected age of 3 year-old). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03334513, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Nov 2017.

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