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Refractive ErrorNCT02495948

Comparison of Two Marketed Silicone Hydrogel Lenses

A study testing Lotrafilcon B contact lenses, Samfilcon A contact lenses and Hydrogen peroxide solution 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 evaluate cholesterol sorption by AIR OPTIX® AQUA lenses compared to ULTRA lenses after 30 days 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?
Lotrafilcon B contact lenses, Samfilcon A contact lenses and Hydrogen peroxide solution
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
168 participants
Where
No sites listed yet
Study dates
Jul 2015to Oct 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

  • Sign informed consent document;
  • Vision correctable to 20/40 Snellen (feet) or better in each eye at distance with both study contact lenses;
  • Willing to wear study lenses on a daily basis (minimum 5 days/week, 8 hours/day) and attend all study visits;
  • Successful wear of single-vision spherical, 2-week/ monthly replacement silicone hydrogel contact lenses in both eyes daily wear during the past 2 months for a minimum of 5 days/week, 8 hours/day. (Note: Monovision is included);
  • Other protocol-specified inclusion criteria may apply.

Who cannot join

  • Any anterior segment infection, inflammation, disease or abnormality that contraindicates contact lens wear (within 7 days of enrollment, or current);
  • History of herpetic keratitis, corneal surgery or irregular cornea;
  • Any use of systemic or ocular medications within the past 30 days for which contact lens wear could be contraindicated as determined by the investigator;
  • Monocular (only 1 eye with functional vision) or fit with only one lens;
  • Current or past AIR OPTIX® AQUA or ULTRA lens wearers;
  • Other protocol-specified exclusion criteria may apply.

About this study

Official title: One Month Clinical Comparison of Lotrafilcon B and Samfilcon A

The purpose of this study is to evaluate cholesterol sorption by AIR OPTIX® AQUA lenses compared to ULTRA lenses after 30 days of wear.

Being tested
Lotrafilcon B contact lenses, Samfilcon A contact lenses, Hydrogen peroxide solution, Saline solution
Medical subject headings
Refractive Errors

What participants receive

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

  • Lotrafilcon B contact lensesDevice

    Also called AIR OPTIX® AQUA

  • Samfilcon A contact lensesDevice

    Also called Bausch + Lomb ULTRA

  • Hydrogen peroxide solutionDevice

    Also called CLEAR CARE®

    Used as a cleaning, disinfection, and storage solution for silicone hydrogel and soft contact lenses

  • Saline solutionDevice

    Also called SENSITIVE EYES® PLUS

    Used for rinsing contact lenses, as needed

Study groups in NCT02495948
Study groupRoleWhat they receive
AOA then ULTRAOtherLotrafilcon B contact lenses worn first, followed by samfilcon A contact lenses. Each product worn bilaterally (in both eyes) for a minimum of 5 days/week, 8 hours/day for 30 days in a daily wear modality.
Receives: Device: Lotrafilcon B contact lenses; Device: Samfilcon A contact lenses; Device: Hydrogen peroxide solution; Device: Saline solution
ULTRA then AOAOtherSamfilcon A contact lenses worn first, followed by lotrafilcon B contact lenses. Each product worn bilaterally for a minimum of 5 days/week, 8 hours/day for 30 days in a daily wear modality.
Receives: Device: Lotrafilcon B contact lenses; Device: Samfilcon A contact lenses; Device: Hydrogen peroxide solution; Device: Saline solution

What is being measured

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

  1. Mean Ex-vivo Cholesterol Deposits After 30 Days of Wear

    The contact lens (right eye) was removed and stored dry and frozen until analysis. Total cholesterol deposits (cholesterol and cholesterol esters) were extracted from the lens and measured in micrograms. Lower deposits indicate increased lens performance. Study originally intended to analyze 36 lenses per arm, but actual number of lenses analyzed was less due to measurement error.

    Measured: Day 30, 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 posted13 Jul 2015 (estimated)
  2. Study startJul 2015
  3. Primary completionOct 2015
  4. Study completionOct 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
Participant
Enrolment
168 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02495948
Sponsor's protocol ID
CLA560-P001
Status last verified
Nov 2016
First submitted
9 Jul 2015
Last updated
28 Dec 2016
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Lotrafilcon B contact lenses, Samfilcon A contact lenses and Hydrogen peroxide solution 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 5 inclusion and 6 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 Dec 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 19 Oct 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?

Mean Ex-vivo Cholesterol Deposits After 30 Days of Wear (time frame: Day 30, 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 28 Dec 2016.

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