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PresbyopiaNCT01526902

Proclear 1-D Multifocal Nondispensing Study

A study testing omafilcon A / PC 1-D MF and lotrafilcon B / Air Optix MF in people with Presbyopia, run by CooperVision, Inc. at 1 site in United States.

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

This study is designed to compare the relative performance related to subjective and objective vision between two multifocal soft contact lenses. Read more about this study

Who is it for?
Ages 40 to 65 years
Conditions the study is for
Presbyopia
What is being tested?
omafilcon A / PC 1-D MF and lotrafilcon B / Air Optix MF
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
1 siteUnited States
Study dates
Feb 2012to May 2012
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 40 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Be between 40 and 65 years of age (inclusive)
  • Require a reading addition of +1.25 to +2.50D (inclusive)
  • Spherical distance CL or spectacle prescription between +3.00D and -5.00D(inclusive)
  • Spectacle cylinder less than or equal to 0.75D in both eyes.
  • Currently has a reading add correction in their spectacle or CL habitual correction (e.g. if myope, removes distance correction to read)
  • Normal binocularity (no amblyopia, no strabismus, no habitually uncorrected anisometropia ≥ 2.00D)
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  • Have a minimum 2 weeks soft contact lens experience
  • Be able to wear the study lens (e.g. good fit is attained and acceptable subjective comfort and vision for the duration of the study)
  • Able to read, comprehend and sign an informed consent
  • Willing to comply with the wear and study visit schedule
  • Monocular best-corrected distance visual acuity ≥ 20/25 in each eye
  • No gas permeable contact lens wear for 1 month prior to the study

Who cannot join

  • To be eligible for the study, each candidate must not present with any of the following
  • Any active corneal infection, injury, inflammation, or ocular abnormality
  • Systemic or ocular allergies, which might interfere with contact lens wear
  • Systemic disease, which might interfere with contact lens wear
  • Ocular disease, which might interfere with contact lens wear
  • Pregnant or lactating
Show all 10Show fewer
  • Strabismus/amblyopia
  • Habitually uncorrected anisometropia greater than or equal to 2.00 D
  • Subjects who have undergone corneal refractive surgery
  • Subjects with keratoconus or other severe corneal irregularity contraindicating lens wear

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Clinical Optics Research Lab, Indiana University,

    Bloomington, Indiana, 47405

Other trials in United States

About this study

This study is designed to compare the relative performance related to subjective and objective vision between two multifocal soft contact lenses.

Read the detailed description

The aim of this study was to compare the subjective and objective vision. of Proclear® 1-D Multifocal test lenses (MF) with +0.75D overcorrection of the distance lens power in the nondominant eye compared to the Air Optix® Aqua Multifocal (CIBA VISION) contact lenses in low, Medium and High Add presbyopic subjects (+1.25 to +2.50 inclusive).

Conditions
Presbyopia
Being tested
omafilcon A / PC 1-D MF, lotrafilcon B / Air Optix MF
Keywords
contact lenses
Medical subject headings
Presbyopia

What participants receive

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

  • omafilcon A / PC 1-D MFDevice

    Also called Proclear Multifocal daily wear soft contact lenses

    Subjects were randomly assigned into either the omafilcon A/PC 1-D MF lenses with +0.75D over-correction in the non-dominant eye or the lotrafilcon B/Air Optix MF lenses then crossed-over into the alternative pair of study lenses.

  • lotrafilcon B / Air Optix MFDevice

    Also called Air OPtix Aqua Multifocal extended wear soft contact lenses

    Subjects were randomly assigned into either the omafilcon A/PC 1-D MF lenses with +0.75D over-correction in the non-dominant eye or the lotrafilcon B/Air Optix MF lenses then crossed-over into the alternative pair of study lenses

Study groups in NCT01526902
Study groupRoleWhat they receive
omafilcon A / PC 1-D MFActive comparatoromafilcon A (PC 1-D MF) / lotrafilcon B (AIR OPTIX MF) Subjects were randomly assigned into either the omafilcon A/PC 1-D MF lenses with +0.75D over-correction in the non-dominant eye or the lotrafilcon B/Air Optix MF lenses then crossed-over into the alternative pair of study lenses.
Receives: Device: omafilcon A / PC 1-D MF; Device: lotrafilcon B / Air Optix MF
lotrafilcon B / Air Optix MFActive comparatorlotrafilcon B (AIR OPTIX MF) / omafilcon A (PC 1-D MF) Subjects were randomly assigned into either the omafilcon A/PC 1-D MF lenses with +0.75D over-correction in the non-dominant eye or the lotrafilcon B/Air Optix MF lenses then crossed-over into the alternative pair of study lenses.
Receives: Device: omafilcon A / PC 1-D MF; Device: lotrafilcon B / Air Optix MF

What is being measured

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

  1. Objective Vision Assessments: High Contrast Distance Visual Acuity

    Tested with charts distant to the subject with both eyes together in normal lighting conditions. The unit of measure is logMAR units (logarithm of the minimum angle of resolution) A logMAR acuity of 0.0 equates to 20/20 Snellen acuity. Positive logMAR values indicate poorer vision and negative values denote better visual acuity than baseline 20/20 value.

    Measured: After 1 hour of lens wear

  2. Objective Vision Assessments: High Contrast Intermediate Visual Acuity

    Tested with charts at intermediate distance (100cm)distant to the subject with both eyes together in normal lighting conditions. The unit of measure is logMAR units (logarithm of the minimum angle of resolution) A logMAR acuity of 0.0 equates to 20/20 Snellen acuity. Positive logMAR values indicate poorer vision and negative values denote better visual acuity than baseline 20/20 value.

    Measured: After 1 hour of lens wear

  3. Objective Vision Assessments: High Contrast Near Visual Acuity

    Tested with charts set at near point (40cm)distant to the subject with both eyes together in normal lighting conditions. The unit of measure is logMAR units (logarithm of the minimum angle of resolution) A logMAR acuity of 0.0 equates to 20/20 Snellen acuity. Positive logMAR values indicate poorer vision and negative values denote better visual acuity than baseline 20/20 value.

    Measured: After 1 hour of lens wear

Secondary outcomes (3)
  1. Subjective Overall Vision: High Contrast Distance Visual Quality

    Subjects instructed to rate Vision quality at distance, intermediate and near vision (OU) using a 0-100 numerical scale where 0 = poor and 100 = excellent.

    Measured: After 1 hour of lens wear

  2. Subjective Vision Assessments: High Contrast Intermediate Visual Quality

    Subjects instructed to rate Vision quality at distance, intermediate and near vision (OU) using a 0-100 numerical scale where 0 = poor and 100 = excellent.

    Measured: After 1 hour of lens wear

  3. Subjective Vision Assessments: High Contrast Near Visual Quality

    Subjects instructed to rate Vision quality at distance, intermediate and near vision (OU) using a 0-100 numerical scale where 0 = poor and 100 = excellent.

    Measured: After 1 hour of lens wear

Timeline

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

  1. First posted6 Feb 2012 (estimated)
  2. Study startFeb 2012
  3. Primary completionMay 2012
  4. Study completionMay 2012

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
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01526902
Sponsor's protocol ID
CV-12-02A
Status last verified
Mar 2014
First submitted
2 Feb 2012
Last updated
7 Apr 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing omafilcon A / PC 1-D MF and lotrafilcon B / Air Optix MF in people with Presbyopia, run by CooperVision, Inc. at 1 site in United States.

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 12 inclusion and 10 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 7 Apr 2014. 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 United States. 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 6 Mar 2014). 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?

Objective Vision Assessments: High Contrast Distance Visual Acuity (time frame: After 1 hour of lens wear). 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 7 Apr 2014.

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