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Trial registered on ANZCTR
Registration number
ACTRN12609000430235
Ethics application status
Approved
Date submitted
20/05/2009
Date registered
10/06/2009
Date last updated
6/05/2014
Type of registration
Prospectively registered
Titles & IDs
Public title
A prospective, single-masked, cross-over, randomised clinical trial assessing ocular comfort and ocular changes with and without lens replacement during the day with AIR OPTIX (trademark) AQUA contact lenses worn by experienced wearers over three days
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Scientific title
A prospective, single-masked, cross-over, randomised clinical trial assessing ocular comfort and ocular changes with and without lens replacement during the day with AIR OPTIX (trademark) AQUA contact lenses worn by experienced wearers over three days
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Secondary ID [1]
879
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N/A
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Contact lens wear
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Ocular Comfort
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Condition category
Condition code
Eye
237165
237165
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0
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Normal eye development and function
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
This is a prospective, single-masked, cross-over, randomised clinical trial, with participants wearing AIR OPTIX AQUA contact lenses bilaterally over 3 days following initial lens dispense.
Participants will initially be fitted with contact lenses . This is followed by three days of wear with the same lens type. Each day corresponds to one stage of the study. For two of the stages, participants will insert their own study lenses and these will be removed after approximately five hours of wear. Either the same lenses will be re-inserted after a brief soak in saline or a new pair of lenses will be inserted. For the other stage, participants will insert their own study lenses and wear the same lenses for the day without removal. The order in which this occurs will be randomised for all stages and masked when lenses are removed during the day. Subjective responses will also be evaluated at regular intervals during each stage.
It is expected that most participants will have six scheduled visits, comprising the baseline visit followed by two stages with two visits per stage and one stage with one visit.
* Baseline visit
* Stages where lenses removed during the day
o Visit 1
o Visit 2
* Stage where lenses not removed during the day:
o Visit 1
* Take home questionnaires (THQ) at regular intervals during the day for all stages
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Intervention code [1]
3439
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Lifestyle
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Intervention code [2]
4591
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Behaviour
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Intervention code [3]
4596
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Treatment: Devices
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Comparator / control treatment
Active control- cross over study
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Control group
Active
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Outcomes
Primary outcome [1]
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Subjective ocular comfort with contact lenses. This will be assessed by using questionnaires which are to be completed at regular time points during the day.
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Assessment method [1]
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Timepoint [1]
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day 1, 2, 3
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Secondary outcome [1]
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Ocular response. This will assessed with a slit lamp biomicroscope, which is a specialised micrsocope used to view the eye.
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Assessment method [1]
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Timepoint [1]
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day 1, 2, 3
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Eligibility
Key inclusion criteria
Able to read and comprehend English and give informed consent as demonstrated by signing a record of informed consent;
Be at least 18 years old;
Willing to comply with the wearing and clinical trial visit schedule as directed by the investigator;
Have ocular health findings considered to be “normal” and which would not prevent the participant from safely wearing contact lenses;
Is correctable to at least 6/12 (20/40) or better in each eye with contact lenses;
Be an experienced contact lens wearer;
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Minimum age
18
Years
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Maximum age
75
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Any pre-existing ocular irritation, injury or condition (including infection or disease) of the cornea, conjunctiva or eyelids that would preclude contact lens fitting and safe wearing of contact lenses;
Any systemic disease that adversely affects ocular health e.g. diabetes, Graves disease, and auto-immune diseases such as ankylosing spondylitis, multiple sclerosis, Sjögrens syndrome and systemic lupus erythematosis. Conditions such as systemic hypertension and arthritis do not automatically exclude prospective participants;
An active corneal infection or any active ocular disease that would affect wearing of contact lenses;
Use of or a need for concurrent category S3 and above ocular medication at enrolment and/or during the study;
Use of or a need for any systemic medication or topical medications which may alter normal ocular findings/are known to affect a participant’s ocular health/physiology or contact lens performance either in an adverse manner or risk providing a false positive.
N.B. Systemic antihistamines are allowed on an ‘as needed basis’, provided they are not used prophylactically during the trial;
Eye surgery within 12 weeks immediately prior to enrolment for this trial;
Previous corneal refractive surgery;
Contraindications to contact lens wear;
Currently enrolled in another clinical trial;
Participation in a clinical trial within the previous 2 weeks for dispensing studies and 48 hours between in-house studies;
The Investigator may, at his/her discretion, exclude anyone else who they believe may not be able to fulfil the study requirements, or if it is believed to be in the participant’s best interests.
N.B. Whilst pregnant or lactating women are not excluded from the trial, they must be able to complete the study.
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Study design
Purpose of the study
Treatment
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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)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
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Intervention assignment
Crossover
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Other design features
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Phase
Phase 4
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Type of endpoint/s
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
31/07/2009
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Actual
7/08/2009
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Date of last participant enrolment
Anticipated
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Actual
2/09/2009
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
20
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Funding & Sponsors
Funding source category [1]
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Charities/Societies/Foundations
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Name [1]
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Institute for Eye Research
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Address [1]
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Level 5, North Wing, Rupert Myers Building (RMB), Gate 14, Barker Street, The University of New South Wales SYDNEY NSW 2052
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Country [1]
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Australia
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Primary sponsor type
Other Collaborative groups
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Name
CIBA VISION
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Address
11460 Johns Creek Parkway
Duluth, GA 30097-1556
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Country
United States of America
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
4502
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Country [1]
4502
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
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The Vision CRC and Institute for Eye Research Human Ethics Committee
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Ethics committee address [1]
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Level 4, North Wing, RMB, Gate 14, Barker Street, The University of New South Wales SYDNEY NSW 2052
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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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26/05/2009
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Approval date [1]
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16/07/2009
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Ethics approval number [1]
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0903
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Summary
Brief summary
The aim of this trial is to assess changes in ocular comfort during the day, and whether ocular comfort is influenced by new lens replacement or re-insertion with the same lens after a brief soak in saline, during the day. The trial also aims to assess ocular changes and whether these correlate with changes in comfort. The hypothesis for this trial is ocular comfort will decrease with lens wear during the day whether lenses are replaced, the same lens is re-inserted or the same lens is worn uninterrupted for the day.
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Trial website
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Trial related presentations / publications
Papas EB, Tilia D, Tomlinson D, Williams J, Chan E, Chan J, Golebiowski B. Consequences of wear interruption for discomfort with contact lenses Optom Vis Sci. 2014 Jan;91(1):24-31
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Public notes
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Contacts
Principal investigator
Name
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Mr Daniel Tilia
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Address
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Level 5 RMB
Gate 14 Barker St
UNSW 2052
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Country
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Australia
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Phone
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+61293857516
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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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Daniel Tilia
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Address
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Level 5, North Wing, RMB, Gate 14, Barker Street, The University of New South Wales SYDNEY NSW 2052
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Country
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Australia
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Phone
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+61293857516
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Fax
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+61293857404
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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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Daniel Tilia
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Address
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Level 5, North Wing, RMB, Gate 14, Barker Street, The University of New South Wales SYDNEY NSW 2052
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Country
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Australia
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Phone
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+61293856165
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Fax
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+61293857404
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Email
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[email protected]
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No information has been provided regarding IPD availability
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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