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AmetropiaNCT00754338

Evaluation of Disinfecting Solutions and Protein Remover With a Silicone Hydrogel Lens

A study testing Alcon Opti-Free® RepleniSH® with Supraclens®, Alcon Opti-Free® RepleniSH® and B&L ReNu MultiPlus™ in people with Ametropia, run by University of Waterloo at 1 site in Canada.

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 purpose of this study is to determine if reduced lens deposits and increased comfort can be achieved by using Multipurpose disinfecting solutions (MPDS) in a no-rub format but in conjunction with an intensive cleaner, rather than using MPDS in a rub format. Read more about this study

Who is it for?
Ages 17 years and olderHealthy volunteers can take part
Conditions the study is for
Ametropia
What is being tested?
Alcon Opti-Free® RepleniSH® with Supraclens®, Alcon Opti-Free® RepleniSH® and B&L ReNu MultiPlus™
Could I receive a placebo?
No, everyone receives an active treatment
How many people
76 participants
Where
1 siteCanada
Study dates
Jan 2008to Sep 2008
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 17 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Is at least 17 years of age and has full legal capacity to volunteer.
  • Has read, understood and signed an information consent letter.
  • Is willing and able to follow instructions and maintain the appointment schedule.
  • Is correctable to a visual acuity of 6/9 or better (in each eye) with their habitual vision correction.
  • Has clear corneas and no active ocular disease.
  • Has had an ocular examination in the last two years.
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  • Is a current soft lens wearer, replacing their lenses every two weeks to one month.
  • Has a distance contact lens prescription between +6.00D to -10.00 DS and can be successfully fit with the study lens.
  • Has astigmatism less than or equal to -1.00 DC.

Who cannot join

  • Has any signs or symptoms of dry eye.
  • Has any clinically significant blepharitis.
  • Has undergone corneal refractive surgery.
  • Is aphakic.
  • Has any active ocular disease.
  • Has any systemic disease affecting ocular health.
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  • Is using any systemic or topical medications that may affect ocular health.
  • Has known sensitivity to the diagnostic pharmaceuticals to be used in the study.
  • Is pregnant or lactating.
  • Is participating in any other type of clinical or research study.
  • Currently wears daily disposable lenses.
  • Currently wears lenses on an extended wear basis.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Centre for Contact Lens Research, School of Optometry, University of Waterloo.

    Waterloo, Ontario, N2L3G1

Other trials in Canada

About this study

The purpose of this study is to determine if reduced lens deposits and increased comfort can be achieved by using Multipurpose disinfecting solutions (MPDS) in a no-rub format but in conjunction with an intensive cleaner, rather than using MPDS in a rub format.

Read the detailed description

The purpose of this study is to determine if reduced lens deposits and increased comfort can be achieved by using Multipurpose disinfecting solutions (MPDS) in a no-rub format but in conjunction with an intensive cleaner, rather than using MPDS in a rub format by observing changes within the cornea and collecting subjective ratings.

Conditions
Ametropia
Being tested
Alcon Opti-Free® RepleniSH® with Supraclens®, Alcon Opti-Free® RepleniSH®, B&L ReNu MultiPlus™
Keywords
comfort, wetability, protein deposit, lipid deposit
Medical subject headings
Refractive Errors

What participants receive

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

  • Alcon Opti-Free® RepleniSH® with Supraclens®Drug

    Marketed Multipurpose Disinfecting Care System + Marketed contact lens protein remover

  • Alcon Opti-Free® RepleniSH®Drug

    Marketed Multipurpose Disinfecting Care System

  • B&L ReNu MultiPlus™Drug

    Marketed Multipurpose Disinfecting Care Systems

Study groups in NCT00754338
Study groupRoleWhat they receive
Phase1 - Arm 1Active comparatorNot described
Receives: Drug: Alcon Opti-Free® RepleniSH® with Supraclens®; Drug: Alcon Opti-Free® RepleniSH®
Phase1 - Arm 2Active comparatorNot described
Receives: Drug: Alcon Opti-Free® RepleniSH® with Supraclens®; Drug: Alcon Opti-Free® RepleniSH®
Phase 2 - Arm 1Active comparatorNot described
Receives: Drug: Alcon Opti-Free® RepleniSH® with Supraclens®; Drug: B&L ReNu MultiPlus™
Phase 2 - Arm 2Active comparatorNot described
Receives: Drug: Alcon Opti-Free® RepleniSH® with Supraclens®; Drug: B&L ReNu MultiPlus™

What is being measured

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

  1. Comfort

    Subjective comfort ratings on analog scale (0= very poor comfort; 100= excellent comfort), self report by subject based on single criterion 'comfort'.

    Measured: 4 weeks

  2. Lens Wettability

    Subjective grading of contact lens surface wettability by investigator (0=excellent; 4=severely reduced).

    Measured: 4 weeks

  3. Lens Deposits

    Subjective grading of contact lens surface deposits by investigator (0=no deposits; 4=severe deposits).

    Measured: 4 weeks

Secondary outcomes (3)
  1. Dryness

    Subjective dryness ratings on analog scale (0= very dry; 100= not dry at all), self report by subject based on single criterion 'dryness'.

    Measured: 4 weeks

  2. Subjective Vision

    Subjective vision ratings on analog scale (0= poor vision; 100= excellent vision), self report by subject based on single criterion 'vision'.

    Measured: 4 weeks

  3. Corneal Staining

    Grading based on Type (0=None; 100=patch)and extent of staining (0=None; 100= Entire corneal region). Final value is Type multiplied by Extent.

    Corneal staining is a test that uses an orange dye (fluorescein) and a blue light to detect damage to the cornea (front surface of eye) from minor abrasions.

    A strip of blotting paper containing the dye was touched to the eyelid margin. Upon blinking, the dye spreads and coats the front surface of the eye along with the tear film covering the surface of the cornea. The investigator then rated the size, location and shape of the staining.

    Measured: 4 weeks

Timeline

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

  1. First posted18 Sep 2008 (estimated)
  2. Study startJan 2008
  3. Primary completionJul 2008
  4. Study completionSep 2008

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
76 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00754338
Sponsor's protocol ID
P/279/07/L
Status last verified
Sep 2023
First submitted
17 Sep 2008
Last updated
28 Sep 2023
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Alcon Opti-Free® RepleniSH® with Supraclens®, Alcon Opti-Free® RepleniSH® and B&L ReNu MultiPlus™ in people with Ametropia, run by University of Waterloo at 1 site in Canada.

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 9 inclusion and 12 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 28 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 20 Sep 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Comfort (time frame: 4 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 28 Sep 2023.

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