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Refractive ErrorNCT02402127

Lubricity Post-Wear - Competitive Lenses Pilot

A study testing Narafilcon A contact lenses, Stenfilcon A contact lenses and Somofilcon A contact lenses in people with Refractive Error, run by Alcon Research.

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 measure the coefficient of friction of three silicone hydrogel, daily disposable contact lenses after 16 hours of wear. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Refractive Error
What is being tested?
Narafilcon A contact lenses, Stenfilcon A contact lenses and Somofilcon A contact lenses
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
No sites listed yet
Study dates
May 2015to Jul 2015
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Must sign an informed consent form.
  • Soft contact lens wearer (both eyes).
  • Willing to wear study lenses at least 16 waking hours and attend all study visits.
  • Other protocol-specified inclusion criteria may apply.

Who cannot join

  • Ocular anterior segment infection, inflammation, abnormality, or active disease that would contraindicate contact lens wear.
  • Use of systemic or ocular medications for which contact lens wear could be contraindicated.
  • Use of artificial tears and rewetting drops during the study.
  • Monocular (only 1 eye with functional vision) or fit with only 1 lens.
  • History of herpetic keratitis, ocular surgery, or irregular cornea.
  • Pregnant.
  • Other protocol-specified exclusion criteria may apply.

About this study

Official title: Evaluation of the Lubricity of Daily Disposable Silicone Hydrogel Contact Lenses After Wear

The purpose of this study is to measure the coefficient of friction of three silicone hydrogel, daily disposable contact lenses after 16 hours of wear.

Read the detailed description

In this 3-treatment, 3-period, 6-sequence crossover study, each participant will wear all 3 products in randomized order, 1 product at a time, with a washout period of up to 7 days between treatment periods. Lenses will be collected for ex-vivo lubricity analysis. The ex-vivo lubricity analysis will be conducted under a separate non-clinical protocol.

Being tested
Narafilcon A contact lenses, Stenfilcon A contact lenses, Somofilcon A contact lenses
Keywords
Contact lenses, Lubricity
Medical subject headings
Refractive Errors

What participants receive

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

  • Narafilcon A contact lensesDevice

    Also called 1-DAY ACUVUE® TruEye® (TruEye)

    Silicone hydrogel contact lenses for daily disposable wear

  • Stenfilcon A contact lensesDevice

    Also called MyDay™

    Silicone hydrogel contact lenses for daily disposable wear

  • Somofilcon A contact lensesDevice

    Also called clariti® 1day

    Silicone hydrogel contact lenses for daily disposable wear

Study groups in NCT02402127
Study groupRoleWhat they receive
TruEye, MyDay, clariti 1dayOtherNarafilcon A contact lenses in Period 1, followed by stenfilcon A contact lenses in Period 2 and somofilcon A contact lenses in Period 3. Each product worn bilaterally (in both eyes) for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses
TruEye, clariti 1day, MyDayOtherNarafilcon A contact lenses in Period 1, followed by somofilcon A contact lenses in Period 2 and stenfilcon A contact lenses in Period 3. Each product worn bilaterally for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses
MyDay, TruEye, clariti 1dayOtherStenfilcon A contact lenses in Period 1, followed by narafilcon A contact lenses in Period 2 and somofilcon A contact lenses in Period 3. Each product worn bilaterally for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses
MyDay, clariti 1day, TruEyeOtherStenfilcon A contact lenses in Period 1, followed by somofilcon A contact lenses in Period 2 and narafilcon A contact lenses in Period 3. Each product worn bilaterally for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses
Clariti 1day, TruEye, MyDayOtherSomofilcon A contact lenses in Period 1, followed by narafilcon A contact lenses in Period 2 and stenfilcon A contact lenses in Period 3. Each product worn bilaterally for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses
Clariti 1day, MyDay, TruEyeOtherSomofilcon A contact lenses in Period 1, followed by stenfilcon A contact lenses in Period 2 and narafilcon A contact lenses in Period 3. Each product worn bilaterally for 1 day (16 hours).
Receives: Device: Narafilcon A contact lenses; Device: Stenfilcon A contact lenses; Device: Somofilcon A contact lenses

What is being measured

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

  1. Average Coefficient of Friction of Worn Lenses at 16 Hours

    Worn contact lenses were removed from the participant's eye and the coefficient of friction was measured by the inclined plane method. A lower coefficient of friction may indicate higher contact lens lubricity. The ex-vivo lubricity was carried out on one lens (one eye) only.

    Measured: Day 1, Hour 16, each product

Secondary outcomes (1)
  1. Average Coefficient of Friction of Unworn Lenses

    Unworn contact lenses were removed from the commercial packaging and the coefficient of friction of the unworn lenses was measured by the inclined plane method. A lower coefficient of friction may indicate higher contact lens lubricity.

    Measured: Day 1 (each product)

Timeline

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

  1. First posted30 Mar 2015 (estimated)
  2. Study startMay 2015
  3. Primary completionJul 2015
  4. Study completionJul 2015

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
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02402127
Sponsor's protocol ID
CLT567-P001
Status last verified
Jul 2016
First submitted
25 Mar 2015
Last updated
2 Sep 2016
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Narafilcon A contact lenses, Stenfilcon A contact lenses and Somofilcon A contact lenses in people with Refractive Error, run by Alcon Research.

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 4 inclusion and 7 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 2 Sep 2016. 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?

Yes. Results are posted in the registry (first posted 2 Sep 2016). 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?

Average Coefficient of Friction of Worn Lenses at 16 Hours (time frame: Day 1, Hour 16, each product). 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 2 Sep 2016.

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