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Trial registered on ANZCTR
Registration number
ACTRN12619000371190
Ethics application status
Approved
Date submitted
27/02/2019
Date registered
11/03/2019
Date last updated
21/02/2020
Date data sharing statement initially provided
11/03/2019
Date results provided
11/03/2019
Type of registration
Retrospectively registered
Titles & IDs
Public title
A pilot randomised clinical trial of 670nm red light for reducing retinopathy of prematurity
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Scientific title
A pilot randomised clinical trial of 670nm red light for reducing retinopathy of prematurity
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Secondary ID [1]
297547
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None
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Universal Trial Number (UTN)
U1111-1229-3184
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Trial acronym
RED ROP RCT
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Retinopathy of prematurity
311770
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Condition category
Condition code
Eye
310383
310383
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0
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Diseases / disorders of the eye
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Reproductive Health and Childbirth
310466
310466
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0
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Complications of newborn
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Preterm neonates will be randomized to receive either 15 minutes of 670 nm red light or no treatment daily from 24-48 hours after birth until 34 weeks corrected gestation. The treatment allocation will be delivered by nursing staff and adherence checked on bedside research proforma.
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Intervention code [1]
313780
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Prevention
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Comparator / control treatment
No red light treatment
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Control group
Active
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Outcomes
Primary outcome [1]
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Retinopathy of prematurity as determined by an ophthalmologist using the international classification for staging of retinopathy of prematurity.
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Assessment method [1]
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Timepoint [1]
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Most severe stage of retinopathy of prematurity diagnosed during the screening period from 32 weeks post conceptional age to retinal maturity.
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Primary outcome [2]
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Survival to first discharge from hospital
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Assessment method [2]
319265
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Timepoint [2]
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Survival to first discharge from hospital
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Secondary outcome [1]
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Sepsis during first hospital admission as confirmed by a positive blood culture.
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Assessment method [1]
367493
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Timepoint [1]
367493
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Number of sepsis episodes during first hospital admission
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Secondary outcome [2]
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Feasibility
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Assessment method [2]
367794
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Timepoint [2]
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To determine whether it is possible to randomize within 48 hours after birth
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Eligibility
Key inclusion criteria
Less than 30 weeks gestation or less than 1150 grams at birth
Randomised within 48 hours after birth
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Minimum age
0
Days
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Maximum age
48
Hours
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Chromosomal or significant congenital anomalies
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation concealment was achieved by central randomization by computer
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Block randomization - < 27 weeks gestation and >27 weeks gestation
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
Safety factors that will be observed are skin integrity and growth.
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Phase
Not Applicable
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
Chi square test and the Mann-Whitney test for categorical variables. Cox regression to demonstrate independent influence of RED light on survival and ROP stage 3-4
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
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Actual
1/03/2015
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Date of last participant enrolment
Anticipated
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Actual
30/01/2017
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Date of last data collection
Anticipated
24/02/2020
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Actual
30/01/2017
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Sample size
Target
80
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Accrual to date
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Final
86
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Recruitment in Australia
Recruitment state(s)
ACT
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Funding & Sponsors
Funding source category [1]
302102
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Other Collaborative groups
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Name [1]
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Canberra Hospital Private Practice Fund
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Address [1]
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Canberra Hospital, PO Box 11, Woden, 2606, ACT
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Country [1]
302102
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Australia
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Primary sponsor type
Hospital
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Name
Canberra Hospital
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Address
PO Box 11, Woden, 2606, ACT, Australia
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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None
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Address [1]
301932
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None
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Country [1]
301932
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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ACT Health Human Research Ethics Committee
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Ethics committee address [1]
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Canberra Hospital, PO Box 11, Woden, 2606, ACT
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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04/08/2014
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Approval date [1]
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15/02/2015
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Ethics approval number [1]
302780
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ETH.7.14.160
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Summary
Brief summary
Retinopathy of Prematurity (ROP) is a vaso-proliferative disorder of the retina affecting extremely preterm or low birth weight infants. The most devastating consequence of ROP is retinal detachment and blindness, which in most developed countries is reduced by careful screening and early treatment with either laser ablation of vessels or intravitreal injection of anti-vascular endothelial growth factor (VEGF). However, ROP remains the leading cause of visual loss in children. Photobiomodulation using 670 nm red light might provide a novel treatment strategy to reduce the hyperoxic stage of ROP, by reducing the harmful effects of ROS and restoring normal vessel development. Photobiomodulation using 670nm red LED light in oxygen induced retinopathy animal models (which mimics facets of ROP including neonvascularisation and photoreceptor cell death) reduced the extent of oxygen induced retinal neovascularisation, decreased pulmonary haemorrhage and improved survival.The aims of this pilot randomised controlled trial were to: 1) determine feasibility of randomisation within 24-48 hours after birth; and 2) determine if treatment with 670nm red LED light at a distance of 25cm providing 9 J/cm2 in very premature neonates provided similar results to previously published animal studies in reducing ROP and improving survival.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Prof Alison Kent
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Address
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Golisano Children's Hospital at University of Rochester, 601 Elmwood Avenue, Box 651, Rochester, 14642, NY
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Country
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United States of America
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Phone
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+1 585 2752645
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Alison Kent
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Address
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Golisano Children's Hospital at University of Rochester, 601 Elmwood Avenue, Box 651, Rochester, 14642, NY
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Country
91379
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United States of America
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Phone
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+1 585 2752645
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Fax
91379
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Email
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[email protected]
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Contact person for scientific queries
Name
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Alison Kent
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Address
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Golisano Children's Hospital at University of Rochester, 601 Elmwood Avenue, Box 651, Rochester, 14642, NY
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Country
91380
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United States of America
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Phone
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+1 585 2752645
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Fax
91380
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
Families not consented for sharing at the time of the study
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
A pilot randomised clinical trial of 670 nm red light for reducing retinopathy of prematurity.
2020
https://dx.doi.org/10.1038/s41390-019-0520-7
N.B. These documents automatically identified may not have been verified by the study sponsor.
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