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MyopiaNCT01386008

Evaluation of DW Silicone Hydrogel Lens Compared to DW Silicone Hydrogel Lens

A study testing senfilcon A contact lens and investigational enfilcon A in people with Myopia, run by CooperVision, Inc. at 2 sites in 2 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Myopia
What is being tested?
senfilcon A contact lens and investigational enfilcon A
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
2 sitesin 2 countries
Study dates
May 2011to Jun 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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Be at least 18 years of age as of the date of evaluation for the study.
  • Not using any ocular medications
  • Have a self-reported full eye examination within 2 years.
  • Have:
  • read the Informed Consent
  • be given an explanation of the Informed Consent
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  • indicate understanding of the Informed Consent
  • signed the Informed Consent document.
  • Be willing and able to adhere to the instructions set forth in this protocol and able to keep all specified appointments.
  • Be an adapted, current full-time silicone hydrogel or soft contact lens wearer. An adapted full-time wearer is defined as wearing contact lenses on a daily basis for at least 8 hours per day for at least one month prior to participation in the study.
  • Possess wearable and visually functional eyeglasses.
  • Be in good general health, based on his/her knowledge.
  • Require spectacle lens powers between -1.00 and -6.00 diopters sphere with no more than 0.75 diopter of refractive astigmatism in order to have the best spherical equivalent power of -6.50 or less.
  • Be willing to wear contact lenses in both eyes.
  • Have manifest refraction Snellen visual acuities (VA) equal to or better than 20/25 (less than or equal to LogMAR 0.10) in each eye.
  • Upon completing the fitting process with the lenses to be worn in the study, have contact lens Snellen VA equal to or better than 20/30 in each eye.

Who cannot join

  • Wearing lenses in a monovision modality and is unwilling to be fit with distance lenses in both eyes. NOTE: Subjects may not wear lenses in a monovision modality at any time during the study as it will interfere with the visual acuity analysis.
  • Any active participation in another one-day clinical trial within 7 days prior to this study or another dispensing trial within 30 days prior to this study.
  • Currently pregnant (to the best of the subject's knowledge), is lactating or is planning a pregnancy within the next month.
  • Has a known sensitivity to ingredients used in the over the counter contact lens care approved for use in the study.
  • Previous refractive surgery/anterior segment surgery; or current or previous orthokeratology treatment or irregular cornea.
  • Is aphakic or pseudophakic.
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  • Unable to achieve a satisfactory fit with the lens designs used in the study
  • Ocular or systemic disease such as, but not limited to: anterior uveitis or iritis (past or present), glaucoma, Sjögren's syndrome, lupus erythematosus, sclerodermia, keratoconus or type II diabetes.
  • The need for topical ocular medications or any medication which might contradict contact lens wear or which would require the lenses to be removed during the day.
  • The presence of clinically anterior segment infection, inflammations or abnormalities; such as iritis; or any infection of the eye, lids, or associated structures.
  • A history of herpetic keratitis.
  • A known history of corneal hypoesthesia (reduced corneal sensitivity) or active corneal ulcer, corneal infiltrates or fungal infection.
  • A history of papillary conjunctivitis that has interfered with contact lens wear.
  • Slit lamp findings that would contraindicate contact lens wear, including but not limited to:
  • Pathological dry eye or associated dry eye symptoms with decreased tear levels and punctuate staining > grade 2
  • Pterygium
  • Corneal scars within the visual axis
  • Corneal edema or corneal staining ≥ grade 2
  • Neovascularization or ghost vessels > 1.0 mm in from the limbus
  • Giant papillary conjunctivitis (GPC) of > grade 2.
  • Seborrheic eczema, seborrheic conjunctivitis or blepharitis

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

United States1 site
  • Clinical Research Center, University of California, Berkeley

    Berkeley, California, 94704

Other trials in United States

United Kingdom1 site
  • University of Manchester

    Manchester, M13 9PL

Other trials in United Kingdom

About this study

The purpose of this study is to evaluate the performance of the investigational CooperVision silicone hydrogel lens compared to a currently-marketed silicone hydrogel contact lens up to 30 days of daily lens wear.

Conditions
Myopia
Being tested
senfilcon A contact lens, investigational enfilcon A
Medical subject headings
Myopia

What participants receive

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

  • senfilcon A contact lensDevice

    senofilcon A spherical contact lens worn in a daily wear modality

  • investigational enfilcon ADevice

    investigational enfilcon A, worn daily wear modality

Study groups in NCT01386008
Study groupRoleWhat they receive
enfilcon A + senofilcon AOtherSimultaneous wearing of daily wear contact lenses - investigational enfilcon A contact lenses in one eye and comparator senofilcon A worn in the other
Receives: Device: senfilcon A contact lens; Device: investigational enfilcon A

What is being measured

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

  1. Subjective Comfort Preference - Participants Preference Response

    Subjective responses of participants administered by questionnaire and measured on a linear scale (0-100) measured at each visit.

    Measured: V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

  2. Ocular Health

    Ocular health determined by biomicroscopy recorded on a severity scale (0-4) for change from baseline over 30 days.

    Measured: Change from baseline over 30 days measured at V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

Secondary outcomes (2)
  1. Investigator Surface Preference

    Investigator Surface Preference rated on a linear scale (Lens assessment biomicroscopy: 1=strong R, 2=slight R, 3=No Pref, 4=slight L, 5=strong L)

    Measured: V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

  2. Investigator Fit Preference

    Investigator Fit Preference rated on a linear scale (Lens assessment biomicroscopy: 1=strong R, 2=slight R, 3=No Pref, 4=slight L, 5=strong L)

    Measured: V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)

Timeline

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

  1. First posted30 Jun 2011 (estimated)
  2. Study startMay 2011
  3. Primary completionJun 2011
  4. Study completionJun 2011

Why it stopped: unexpected adverse events

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
Double blind
Who is masked
Participant, Investigator
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01386008
Sponsor's protocol ID
CV-10-50
Status last verified
Aug 2019
First submitted
22 May 2011
Last updated
4 Sep 2019
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing senfilcon A contact lens and investigational enfilcon A in people with Myopia, run by CooperVision, Inc. at 2 sites in 2 countries.

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 16 inclusion and 21 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: stopped early, as of the sponsor's last update on 4 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States, United Kingdom. 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 21 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?

Subjective Comfort Preference - Participants Preference Response (time frame: V1 (Initial), V2 (Day-7), V3 (Day-14), V4 (Day-30)). The study lists 2 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 4 Sep 2019.

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