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AzTrials

Contact Lens ComfortCLANNCT02148263

Contact Lens Adaptation in Neophytes

A study testing senofilcon A in people with Contact Lens Comfort, run by Ohio State University 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

Eye care professionals prescribe contact lenses to new wearers on a daily basis, and it is common practice for practitioners to educate their patients to gradually increase their contact lens wear time over their first few days of use; however, there is no scientific basis in the literature for this practice. Read more about this study

Who is it for?
Ages 8 years and olderHealthy volunteers can take part
Conditions the study is for
Contact Lens Comfort
What is being tested?
senofilcon A
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
25 participants
Where
1 siteUnited States
Study dates
May 2014to 3 Sep 2019
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 8 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Has had a completed comprehensive eye exam within the past 6 months
  • Able to wear spherical senofilcon A contact lenses
  • Able to use Opti-Free PureMoist contact lens solution

Who cannot join

  • Any prior contact lens use
  • Topical eye drops within the last two hours of the study visit
  • Known systemic health conditions known to alter tear film physiology
  • History of severe ocular trauma
  • Active ocular infection
  • Active ocular inflammation
  • Known hypersensitivity to diagnostic eye drops
  • Pregnant or breast feeding

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Ohio State University

    Columbus, Ohio, 43210

Other trials in United States

About this study

Eye care professionals prescribe contact lenses to new wearers on a daily basis, and it is common practice for practitioners to educate their patients to gradually increase their contact lens wear time over their first few days of use; however, there is no scientific basis in the literature for this practice. This study will compare the ocular health and comfort of new contact lens wearers who are randomly assigned to begin contact lens wear with increasing wearing time versus those who immediately start full-time wear (eight hours or more/day). The increasing wearing time group will wear daily wear contact lenses (Acuvue Oasys) for two, four, six, eight, and eight or more hours on the first, second, third, fourth, and fifth days, respectively. The other group will be instructed to wear the same contact lenses for eight or more hours per day, starting with the first day of wear. Both groups of subjects will have their eye health and comfort evaluated at baseline, one, and two weeks with a lighted-microscope and eye comfort surveys. Subjects will also keep a daily log of eye comfort with a visual analog scale survey at home. All subjects will learn how to wear and take care of contact lenses. They will also receive a prescription for contact lenses at the conclusion if they wish to continue wearing the study contact lenses.

Being tested
senofilcon A
Keywords
Contact Lenses, Neophytes, Contact Lens Adaptation, Randomized

What participants receive

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

  • senofilcon ADevice

    Also called Acuvue Oasys

Study groups in NCT02148263
Study groupRoleWhat they receive
Full-Time Senofilcon A Contact Lens WearExperimentalThis group will start wearing contact lenses 8 or more hours per day on the first day of wear
Receives: Device: senofilcon A
Graduated Senofilcon A Contact Lens WearExperimentalThis group will start wearing contact lenses on a graduated schedule (day 1 = 2 hours, day 2 = 4 hours, day 3 = 6 hours, day 4 = 8 hours, day 5 = 8 or more hours).
Receives: Device: senofilcon A

What is being measured

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

  1. Between-Group Difference in Eye Comfort as Measured by the Ocular Surface Disease Index (OSDI)

    This is an eye comfort survey. The Ocular Surface Disease Index (OSDI) is assessed on a scale of 0 to 100, with higher scores representing greater disability. The index demonstrates sensitivity and specificity in distinguishing between normal subjects and patients with dry eye disease. The OSDI is a valid and reliable instrument for measuring dry eye disease (normal, mild to moderate, and severe) and effect on vision-related function.

    Measured: 2 weeks

Secondary outcomes (9)
  1. Between-Group Difference in Visual Acuity as Measured With the Bailey-Lovie Chart

    The investigator will measure the subject's visual acuity with a Bailey-Lovie high-contrast paper (logMAR) chart. logMAR is a method used to observe visual acuity. Smaller numbers are better scores.

    Measured: 2 weeks

  2. Between-Group Difference in Tear Stability as Measured by Non-Invasive Break Up Time (NIBUT)

    Non-Invasive Break Up Time (NIBUT) is a measure of tear stability. The range is 0 to 60 seconds with longer times being better tear stability.

    Measured: 2 Weeks

  3. Between-Group Difference in Tear Volume as Measured by Tear Meniscus Height (TMH)

    Tear Meniscus Height (TMH) was used at a measure of tear volume. The range is 0.0 to 2.0 mm with higher values being more tear volume.

    Measured: 2 Weeks

  4. Between-Group Difference in Bulbar Conjunctival Redness as Measured With the Keratograph 5M

    Eye redness was measured via bulbar conjunctival redness as measured with the Keratograph 5M. The range is 0 to 4 units with lower numbers being better.

    Measured: 2 Weeks

  5. Between-Group Difference in Upper and Lower Eyelid Blepharitis

    A slit-lamp biomicroscope was used to document eyelid blepharitis with a 0-3 scale by each eyelid with higher scores being worse blepharitis.

    Measured: 2 Weeks

  6. Between-Group Difference in Corneal Sodium Fluorescein Staining

    The Brien Holden Vision Institute grading scale was used to evaluate staining by observing the eye after applying sodium fluorescein. Scores were given for the extent (0-20 units), depth (0-20 units), type (0-20 units) of staining. Higher scores indicate worse staining.

    Measured: 2 Weeks

  7. Between-Group Difference in Tear Volume as Measured by Schirmer's Test I

    Tear volume was assessed with Schirmer's Test I test over 5 mins. This test has a 0-35 mm range with higher values being better tear volume.

    Measured: 2 Weeks

  8. Between-Group Difference in End of Day Contact Lens Comfort as Measured With a Visual Analog Scale (VAS)

    End of day contact lens comfort was measured with a visual analog scale (1-100 scale). Higher scores indicate better comfort.

    Measured: 2 Weeks

  9. Between-Group Difference in Contact Lens Dry Eye-8 Questionnaire (CLDEQ-8) Scores

    Contact lens comfort was measured with a scale (1-37 scale). Lower scores indicate better comfort.

    Measured: 2-Weeks

Timeline

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

  1. First posted28 May 2014 (estimated)
  2. Study startMay 2014
  3. Primary completion20 Aug 2019
  4. Study completion3 Sep 2019

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
Investigator
Enrolment
25 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02148263
Sponsor's protocol ID
2014H0074
Other IDs
K08EY023264
Acronym
CLAN
Status last verified
Sep 2022
First submitted
21 May 2014
Last updated
29 Sep 2022
Data monitoring committee
No

Publications

  • Sullivan BD, Whitmer D, Nichols KK, Tomlinson A, Foulks GN, Geerling G, Pepose JS, Kosheleff V, Porreco A, Lemp MA. An objective approach to dry eye disease severity. Invest Ophthalmol Vis Sci. 2010 Dec;51(12):6125-30. doi: 10.1167/iovs.10-5390. Epub 2010 Jul 14.

    PubMed 20631232
  • Sullivan BD, Crews LA, Sonmez B, de la Paz MF, Comert E, Charoenrook V, de Araujo AL, Pepose JS, Berg MS, Kosheleff VP, Lemp MA. Clinical utility of objective tests for dry eye disease: variability over time and implications for clinical trials and disease management. Cornea. 2012 Sep;31(9):1000-8. doi: 10.1097/ICO.0b013e318242fd60.

    PubMed 22475641
  • Bron AJ, Evans VE, Smith JA. Grading of corneal and conjunctival staining in the context of other dry eye tests. Cornea. 2003 Oct;22(7):640-50. doi: 10.1097/00003226-200310000-00008.

    PubMed 14508260
  • Yang SN, Tai YC, Sheedy JE, Kinoshita B, Lampa M, Kern JR. Comparative effect of lens care solutions on blink rate, ocular discomfort and visual performance. Ophthalmic Physiol Opt. 2012 Sep;32(5):412-20. doi: 10.1111/j.1475-1313.2012.00922.x. Epub 2012 Jul 7.

    PubMed 22775005
  • Dougherty BE, Nichols JJ, Nichols KK. Rasch analysis of the Ocular Surface Disease Index (OSDI). Invest Ophthalmol Vis Sci. 2011 Nov 7;52(12):8630-5. doi: 10.1167/iovs.11-8027.

    PubMed 21948646
  • Chalmers RL, Begley CG. Dryness symptoms among an unselected clinical population with and without contact lens wear. Cont Lens Anterior Eye. 2006 Mar;29(1):25-30. doi: 10.1016/j.clae.2005.12.004. Epub 2006 Jan 31.

    PubMed 16448840
  • Faber E, Golding TR, Lowe R, Brennan NA. Effect of hydrogel lens wear on tear film stability. Optom Vis Sci. 1991 May;68(5):380-4. doi: 10.1097/00006324-199105000-00010.

    PubMed 1852401
  • Efron N, Morgan PB, Katsara SS. Validation of grading scales for contact lens complications. Ophthalmic Physiol Opt. 2001 Jan;21(1):17-29.

    PubMed 11220037
  • Pucker AD, Steele K, Rueff E, Franklin QX, McClure K, Savla K, Walline JJ. Contact Lens Adaption in Neophytes. Optom Vis Sci. 2021 Mar 1;98(3):266-271. doi: 10.1097/OPX.0000000000001662.

    PubMed 33771956

Questions about this trial

What is this clinical trial studying?

A study testing senofilcon A in people with Contact Lens Comfort, run by Ohio State University 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 3 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 29 Sep 2022. 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 22 Aug 2022). 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?

Between-Group Difference in Eye Comfort as Measured by the Ocular Surface Disease Index (OSDI) (time frame: 2 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02148263, which also lists 9 linked publications.

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 29 Sep 2022.

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