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Trial registered on ANZCTR
Registration number
ACTRN12612001257853
Ethics application status
Approved
Date submitted
27/11/2012
Date registered
29/11/2012
Date last updated
21/02/2020
Date data sharing statement initially provided
18/07/2019
Date results provided
18/07/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
Red light (670nm) treatment to prevent retinopathy of prematurity (ROP)
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Scientific title
Red light (670nm) treatment to prevent retinopathy of prematurity (ROP)
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Secondary ID [1]
281592
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None
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Universal Trial Number (UTN)
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Trial acronym
RED ROP study
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Retinopathy of prematurity
287874
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Chronic Lung Disease
287879
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Condition category
Condition code
Eye
288239
288239
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0
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Diseases / disorders of the eye
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Respiratory
288248
288248
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0
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Normal development and function of the respiratory system
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Premature neonates less than 30 weeks gestation or less than 1150 grams birthweight will be exposed to 670nm red light treatment daily for 15 minutes (9 Joules/cm2) from the first 24-48 hours of life until 34 weeks corrected age. The 670nm red light used will be the WARP 75 (Registered trademark light) (Food and Drug Administration (FDA) cleared for market medical devices (US Patent # 6,796,994 issued Sept. 2004)) which is placed on top of the neonates isolette 25cm above the baby in a similar fashion to that of phototherapy for hyperbilirubinaemia. Routine ophthalmological follow-up as inpatients will occur along with neurodevelopmental follow-up and ophthalomological follow-up at 2-3 years of age.
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Intervention code [1]
286120
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Prevention
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Intervention code [2]
286135
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Treatment: Other
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Intervention code [3]
286136
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Treatment: Devices
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Comparator / control treatment
This is a small phase 2 study looking at feasibility and efficacy. All neonates enrolled in the study will receive the treatment - there will be no control group.
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Control group
Uncontrolled
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Outcomes
Primary outcome [1]
288430
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670nm red light will reduce the incidence of all stages of retinopathy of prematurity. Eye examinations will be performed by Ophthalmologists and the internationally accepted staging of ROP will be utilised according to standard examination guidelines commencing at 32 weeks corrected age until the retina is vascularised at term corrected age. The worst stage of ROP in either eye at term corrected age will be collected.
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Assessment method [1]
288430
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Timepoint [1]
288430
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The above final outcome will be assessed at term corrected age (this is a standard term for neonates born extremely premature and is designated as 40 weeks).
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Secondary outcome [1]
300142
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670nm red ight will reduce the incidence of retinopathy of prematurity requiring laser surgery. Eye examinations will be performed by Ophthalmologists and the internationally accepted staging of ROP will be utilised according to standard examination guidelines commencing at 32 weeks corrected age until the retina is vascularised at term corrected age. If laser surgery is required to treat stage 3 ROP this data will be collected.
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Assessment method [1]
300142
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Timepoint [1]
300142
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The above final outcome will be assessed at term corrected age (this is a standard term for neonates born extremely premature and is designated as 40 weeks).
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Secondary outcome [2]
300143
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670nm red light will reduce the incidence of chronic lung disease of prematurity. This outcome is determined by the universally standard definition of a neonate requiring oxygen or any respiratory support at 36 weeks corrected age.
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Assessment method [2]
300143
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Timepoint [2]
300143
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The above final outcome will be assessed at 36 weeks corrected age the universally accepted definition for chronic lung disease of prematurity
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Eligibility
Key inclusion criteria
Premature neonates less than 30 weeks gestation or less than 1150 grams birthweight
Informed consent obtained in the first 24-48 hours of life
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Minimum age
24
Weeks
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Maximum age
30
Weeks
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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
Significant chromosomal or congenital anomalies
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Study design
Purpose of the study
Prevention
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Parents of premature neonates will be approached within the first 24-48 hours to consider participation in the study. All enrolled neonates will receive the treatment.
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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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
Single group
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Other design features
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Phase
Phase 2
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/02/2013
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Actual
1/02/2013
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Date of last participant enrolment
Anticipated
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Actual
14/02/2014
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Date of last data collection
Anticipated
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Actual
14/02/2014
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Sample size
Target
25
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Accrual to date
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Final
25
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Recruitment in Australia
Recruitment state(s)
ACT
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Funding & Sponsors
Funding source category [1]
286400
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Hospital
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Name [1]
286400
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Canberra Hospital Private Practice Fund
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Address [1]
286400
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Canberra Hospital
PO Box 11
Woden, 2606
ACT
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Country [1]
286400
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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
Canberra Hospital
PO Box 11
Woden, 2606
ACT
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Country
Australia
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Secondary sponsor category [1]
285185
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University
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Name [1]
285185
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John Curtin School of Medical Research
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Address [1]
285185
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Australian National University
Canberra, 2601
ACT
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Country [1]
285185
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Australia
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Other collaborator category [1]
277202
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University
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Name [1]
277202
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John Curtin School of Medical Research
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Address [1]
277202
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Australian National University
Canberra, 2601
ACT
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Country [1]
277202
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
288463
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ACT HREC
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Ethics committee address [1]
288463
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ACT Health Directorate Research Office Building 10 Level 6 Canberra Hospital PO Box 11 Woden, 2606 ACT
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Ethics committee country [1]
288463
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Australia
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Date submitted for ethics approval [1]
288463
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12/11/2012
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Approval date [1]
288463
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15/01/2013
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Ethics approval number [1]
288463
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ETH 9.12.211
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Summary
Brief summary
Retinopathy of prematurity is a common complication of very premature delivery (less than 30 weeks gestation) and without appropriate screening and treatment can lead to retinal detachment and blindness. It is the leading cause of blindness in children. While in the uterus the fetus and the retina is developing in an environment where the partial pressure of oxygen is only 25-35 mmHg. Following premature delivery the retina is then exposed to partial pressures of oxygen of 60 mmHg and above. ROP has been shown to occur as a result of this hyperoxic exposure, and despite tight control on oxygen saturations which has led to a significant reduction in the disease, ROP still occurs in some part due to the fact that the retina is not meant to develop in this hyperoxic environment. Exacerbating this situation is that many of the neonates at most risk of ROP have significant lung disease of prematurity and as a consequence have recurrent episodes of hyper and hypoxia which occur despite attempts at tight control of oxygen delivery. 670nm red light is thought to act on the cytochrome c oxidative pathway (within cells of the body), which reduces the presence and production of oxygen free radicals. 670nm red light has been shown to reduce ROP in a mice and rat animal model. It has been used safely in the treatment of soft tissue injuries and mouth ulcers following radiation treatment and studies are ongoing with its use in diabetic retinopathy and age-related macular degeneration. This study aims to look at whether 670nm red light reduces the incidence of any stage of ROP and the incidence of ROP requiring laser surgery.
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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
34987
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Prof Prof Alison Kent
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Address
34987
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Director of Clinical Research
Golisano Children's Hospital, University of Rochester
601 Elmwood Ave, Box 651
Rochester, 14642
NY
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Country
34987
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United States of America
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Phone
34987
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+1 585 275 5844
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Fax
34987
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Email
34987
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[email protected]
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Contact person for public queries
Name
18234
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Prof Alison Kent
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Address
18234
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Director of Clinical Research
Golisano Children's Hospital, University of Rochester
601 Elmwood Ave, Box 651
Rochester, 14642
NY
USA
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Country
18234
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United States of America
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Phone
18234
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+1 585 275 5884
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Fax
18234
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+1 585 461 3614
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Email
18234
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[email protected]
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Contact person for scientific queries
Name
9162
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Prof Alison Kent
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Address
9162
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Golisano Children's Hospital, University of Rochester
601 Elmwood Ave, Box 651
Rochester, 14642
NY
USA
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Country
9162
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United States of America
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Phone
9162
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+1 585 275 5884
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Fax
9162
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+1 585 461 3614
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Email
9162
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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
No patient consent for sharing of data
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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
No additional documents have been identified.
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