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MyopiaNCT01295905

Prospective Study of an Investigational Daily Disposable Contact Lens

A study testing delefilcon A contact lens and narafilcon B contact lens in people with Myopia, 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 evaluate the performance of an investigational daily disposable contact lens. Read more about this study

Who is it for?
Any age
Conditions the study is for
Myopia
What is being tested?
delefilcon A contact lens and narafilcon B contact lens
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
No sites listed yet
Study dates
Jan 2011to May 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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Subjects with normal eyes who are not using any ocular medications.
  • Be of legal age of consent and sign Informed Consent document. If under legal age of consent, legally authorized representative must sign Informed Consent document and subject must sign Assent document.
  • Willing and able to wear spherical contact lenses for at least 5 days per week.
  • Willing and able to wear spherical contact lenses within the available range of powers of -1.00 diopter(D) to -6.00D in 0.25D steps.
  • Best spectacle-corrected visual acuity greater than or equal to 20/25.
  • Manifest cylinder less than or equal to 0.75D.
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • Any active anterior segment ocular disease that would contraindicate contact lens wear.
  • Any use of systemic medications for which contact lens wear could be contraindicated as determined by the investigator.
  • History of refractive surgery or irregular cornea.
  • History of pathologically dry eye.
  • Eye injury within twelve weeks immediately prior to enrollment for this trial.
  • Currently enrolled in any clinical trial.
  • Participation in a contact lens or contact lens care product clinical trial within the previous 30 days.
  • Other protocol-defined exclusion criteria may apply.

About this study

The purpose of this study is to evaluate the performance of an investigational daily disposable contact lens.

Conditions
Myopia
Being tested
delefilcon A contact lens, narafilcon B contact lens
Medical subject headings
Myopia

What participants receive

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

  • delefilcon A contact lensDevice

    Investigational silicone hydrogel, single vision soft contact lens

  • narafilcon B contact lensDevice

    Commercially marketed silicone hydrogel, single vision soft contact lens

Study groups in NCT01295905
Study groupRoleWhat they receive
delefilcon AExperimentalInvestigational contact lenses worn in both eyes on a daily wear, daily disposable basis for 3 months.
Receives: Device: delefilcon A contact lens
narafilcon BActive comparatorCommercially marketed contact lenses worn in both eyes on a daily wear, daily disposable basis for 3 months.
Receives: Device: narafilcon B contact lens

What is being measured

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

  1. Corrected Distance Monocular Visual Measurement in Normal Illumination Reported as Visual Acuity

    Each eye tested individually while reading a chart distant to the participant in normal lighting. Visual acuity was measured using a Snellen chart, with 20/20 Snellen acuity considered normal distance-eyesight. Visual acuity is reported as the number of eyes achieving 20/20 Snellen acuity or better.

    Measured: 3 months of wear, lenses replaced daily

Secondary outcomes (3)
  1. Overall Vision

    As interpreted by the participant and recorded on a questionnaire as a single, retrospective evaluation of 3 months of wear time. Overall vision was evaluated binocularly and rated on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 3 months of wear, lenses replaced daily

  2. Overall Comfort

    As interpreted by the participant and recorded on a questionnaire as a single, retrospective evaluation of 3 months of wear time. Overall comfort was evaluated binocularly and rated on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 3 months of wear, lenses replaced daily

  3. Overall Handling

    As interpreted by the participant and recorded on a questionnaire as a single, retrospective evaluation of 3 months of wear time. Overall handling was evaluated binocularly and rated on a 10-point scale, with 1 being poor and 10 being excellent.

    Measured: 3 months of wear, lenses replaced daily

Timeline

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

  1. First posted15 Feb 2011 (estimated)
  2. Study startJan 2011
  3. Primary completionMay 2011
  4. Study completionMay 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
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01295905
Sponsor's protocol ID
P-347-C-004
Status last verified
May 2012
First submitted
11 Feb 2011
Last updated
10 Jul 2012

Questions about this trial

What is this clinical trial studying?

A study testing delefilcon A contact lens and narafilcon B contact lens in people with Myopia, 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 7 inclusion and 8 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 20 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?

Corrected Distance Monocular Visual Measurement in Normal Illumination Reported as Visual Acuity (time frame: 3 months of wear, lenses replaced daily). 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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