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MyopiaNCT01293240

Prospective Study of Lens Performance of a Monthly Replacement Lens at Two Weeks and Four Weeks

A study testing lotrafilcon B contact lens in people with Myopia and Astigmatism, run by CIBA VISION.

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 compare the overall performance of a monthly replacement contact lens when worn for one month and when worn for two weeks. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myopia, Astigmatism, Presbyopia
What is being tested?
lotrafilcon B contact lens
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
117 participants
Where
No sites listed yet
Study dates
Dec 2010to Apr 2011
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

  • Habitual and successful wearers of contact lenses made of lotrafilcon B material for at least 4 weeks prior to enrollment.
  • Good general health.
  • Sphere requirement in the range +6.00 to -10.00 with astigmatism or multifocal correction or no astigmatism or multifocal correction.
  • Ability to comply with all protocol-mandated procedures and to attend all scheduled office visits.
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • Anterior segment abnormalities (i.e., cataracts, opacities, etc.) or active anterior segment disease.
  • Administration of any investigational drug or device within 14 days of study initiation.
  • Use of any eye drops with a pharmacological effect within 7 days of Visit 1.
  • Known local or systemic hypersensitivity to contact lens cleaning and disinfecting solutions.
  • Post-refractive surgery.
  • Currently pregnant or lactating by case history.
  • Other protocol-defined exclusion criteria may apply.

About this study

The purpose of this study is to compare the overall performance of a monthly replacement contact lens when worn for one month and when worn for two weeks.

Being tested
lotrafilcon B contact lens
Medical subject headings
Myopia, Astigmatism, Presbyopia

What participants receive

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

  • lotrafilcon B contact lensDevice

    Also called AIR OPTIX® AQUA, AIR OPTIX® for ASTIGMATISM, AIR OPTIX® AQUA MULTIFOCAL

    Commercially marketed, silicone hydrogel contact lens worn bilaterally on a daily wear basis for up to 30 days with a two week and four week evaluation visit.

Study groups in NCT01293240
Study groupRoleWhat they receive
Lotrafilcon BExperimentalNot described
Receives: Device: lotrafilcon B contact lens

What is being measured

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

  1. Overall Comfort

    Overall comfort was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 2 weeks of wear. Overall comfort was measured on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 2 weeks

  2. Overall Comfort

    Overall comfort was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 4 weeks of wear. Overall comfort was measured on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 4 weeks

  3. End of Day Dryness

    End of day dryness was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 2 weeks of wear. End of day dryness was measured on a 10-point scale, with 1 being very dry and 10 being not dry.

    Measured: 2 weeks

  4. End of Day Dryness

    End of day dryness was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 4 weeks of wear. End of day dryness was measured on a 10-point scale, with 1 being very dry and 10 being not dry.

    Measured: 4 weeks

  5. Ocular Redness

    Ocular redness was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 2 weeks of wear. Ocular redness was measured on a 10-point scale, with 1 being very red and 10 being not red.

    Measured: 2 weeks

  6. Ocular Redness

    Ocular redness was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 4 weeks of wear. Ocular redness was measured on a 10-point scale, with 1 being very red and 10 being not red.

    Measured: 4 weeks

  7. Visual Clarity

    Visual clarity was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 2 weeks of wear. Visual clarity was measured on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 2 weeks

  8. Visual Clarity

    Visual clarity was assessed and reported by the participant on a questionnaire as a single, retrospective evaluation of 4 weeks of wear. Visual clarity was measured on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 4 weeks

  9. Lens Deposits

    Protein and lipid deposits on the contact lens surface were assessed for each eye by the investigator using a biomicroscope, which magnifies the appearance of the contact lens on the wearer's eye. Deposits were graded on a scale of 0 to 4, with 0 being none and 4 being severe.

    Measured: 2 weeks

  10. Lens Deposits

    Protein and lipid deposits on the contact lens surface were assessed for each eye by the investigator using a biomicroscope, which magnifies the appearance of the contact lens on the wearer's eye. Deposits were graded on a scale of 0 to 4, with 0 being none and 4 being severe.

    Measured: 4 weeks

  11. Corrected Visual Acuity

    Each eye was tested individually while the participant read distant charts in normal lighting. Corrected visual acuity was measured using a Snellen chart, which was converted into logMAR units (logarithm of the minimum angle of resolution). A 20/20 Snellen acuity equates to a logMAR acuity of 0.0 and is considered normal distance eyesight. Positive logMAR values indicate poorer vision, and negative values denote better visual acuity.

    Measured: 2 weeks

  12. Corrected Visual Acuity

    Each eye was tested individually while the participant read distant charts in normal lighting. Corrected visual acuity was measured using a Snellen chart, which was converted into logMAR units (logarithm of the minimum angle of resolution). A 20/20 Snellen acuity equates to a logMAR acuity of 0.0 and is considered normal distance eyesight. Positive logMAR values indicate poorer vision, and negative values denote better visual acuity.

    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 posted10 Feb 2011 (estimated)
  2. Study startDec 2010
  3. Primary completionApr 2011
  4. Study completionApr 2011

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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
117 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01293240
Sponsor's protocol ID
P-368-C-400
Status last verified
May 2012
First submitted
9 Feb 2011
Last updated
10 Jul 2012
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing lotrafilcon B contact lens in people with Myopia and Astigmatism, run by CIBA VISION.

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 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 10 Jul 2012. 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 1 Jun 2012). 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?

Overall Comfort (time frame: 2 weeks). The study lists 12 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 10 Jul 2012.

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