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Refractive ErrorNCT00708032

Clinical Performance of a New Daily Disposable Contact Lens Worn in a Neophyte Population.

A study testing spectacles and narafilcon A soft contact lenses in people with Refractive Error and Myopia, run by Johnson & Johnson Vision Care, Inc. at 1 site in United Kingdom.

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 seeks to evaluate the impact of wearing a new daily disposable soft contact lens on the neophyte population. Read more about this study

Who is it for?
Ages 18 to 39 years
Conditions the study is for
Refractive Error, Myopia
What is being tested?
spectacles and narafilcon A soft contact lenses
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
74 participants
Where
1 siteUnited Kingdom
Study dates
1 Jun 2008to 1 Dec 2009
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 to 39 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • They are of legal age (18 years) and capacity to volunteer.
  • They understand their rights as a research subject and are willing to sign a Statement of Informed Consent.
  • They are willing and able to follow the protocol.
  • They would be expected to attain at least 6/9 (20/30) in each eye with the study lenses.
  • They are able to wear contact lenses with a back vertex power of -1.00 to -6.00DS.
  • They have a maximum of 1.00D of refractive astigmatism (i.e. ≤ 1.00 DC).
  • They have successfully worn contact lenses within six months of starting the study.

Who cannot join

  • They have an ocular disorder which would normally contra-indicate contact lens wear.
  • They have a systemic disorder which would normally contra-indicate contact lens wear.
  • They are using any topical medication such as eye drops or ointment.
  • They are aphakic.
  • They have had corneal refractive surgery.
  • They have any corneal distortion resulting from previous hard or rigid lens wear or has keratoconus.
Show all 11Show fewer
  • They are pregnant or lactating.
  • They have grade 2 or greater of any of the following ocular surface signs: corneal oedema, corneal vascularisation, corneal staining, tarsal conjunctival changes or any other abnormality which would normally contraindicate contact lens wear.
  • They have any infectious disease (e.g. hepatitis) or any immunosuppressive disease (e.g. HIV).
  • They have diabetes.
  • They have taken part in any other clinical trial or research, within two weeks prior to starting this study.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Eurolens Research, The University of Manchester

    Manchester, Greater Manchester, M60 1QD

Other trials in United Kingdom

About this study

This study seeks to evaluate the impact of wearing a new daily disposable soft contact lens on the neophyte population.

Being tested
spectacles, narafilcon A soft contact lenses
Medical subject headings
Refractive Errors, Myopia

What participants receive

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

  • spectaclesDevice

    habitual spectacles

  • narafilcon A soft contact lensesDevice

    narafilcon A daily disposable contact lenses

Study groups in NCT00708032
Study groupRoleWhat they receive
spectaclesOtherhabitual spectacles worn daily for 12 months
Receives: Device: spectacles
narafilcon A soft contact lensesExperimentalnarafilcon A soft contact lenses worn as daily disposable for 12 months
Receives: Device: narafilcon A soft contact lenses

What is being measured

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

  1. Papillary Conjunctivitis

    Papillary conjunctivitis which is collected as part of the biomicroscopy data and is identified from a slit lamp examination. Grade 0 to Grade 4 with grade 0 implying no health concerns.

    Measured: 12 months

Secondary outcomes (4)
  1. Biomicroscopy Findings After 12 Months of Daily Wear From Slit Lamp Analysis.

    Comprised of 8 categories (conjunctival hyperemia, limbal hyperemia, corneal vascularization, microcysts, Oedema, corneal staining, conjunctival staining and papillary conjunctivitis) each scored on a scale of 0 to 4 where 0=none, and 4=maximum score for each category.

    Measured: at 12 months

  2. Visual Acuity After 12 Months of Wear

    Visual acuity is measured at high and low contrasts, via the Snellen scale which is then mathematically converted to logMar units. High contrast refers to a darker print on the Snellen chart and is an easier testing environment compared to the low contrast which has a grayer print.

    Measured: at 12 months

  3. Subjective Overall Comfort After 12 Months of Daily Wear

    subject response using a scale of 0 to 100, where 0 = poor comfort, 100 = excellent comfort

    Measured: at 12 months

  4. Subjective Overall Vision After 12 Months of Daily Wear

    subject response using a scale of 0 to 100, where 0 = poor vision, 100 = excellent vision

    Measured: at 12 months

Timeline

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

  1. First posted2 Jul 2008 (estimated)
  2. Study start1 Jun 2008
  3. Primary completion1 Dec 2009
  4. Study completion1 Dec 2009

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
74 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00708032
Sponsor's protocol ID
CR-0806
Status last verified
Nov 2019
First submitted
27 Jun 2008
Last updated
10 Dec 2019
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing spectacles and narafilcon A soft contact lenses in people with Refractive Error and Myopia, run by Johnson & Johnson Vision Care, Inc. at 1 site in United Kingdom.

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 11 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 Dec 2019. 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 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 8 Dec 2011). 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?

Papillary Conjunctivitis (time frame: 12 months). 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 Dec 2019.

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