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MyopiaNCT04668989

Evaluation of the Performance of Different Daily Disposable Lens Designs in Habitual Soft Contact Lens Wearers

A study testing stenfilcon A - (Test lens) in people with Myopia, run by CooperVision, Inc. at 4 sites 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

The main objective of the study is to refit existing soft lens wearers with two different daily disposable contact lens types, Lens A and Lens B, to determine their performance after one week of 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?
stenfilcon A - (Test lens)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
68 participants
Where
4 sitesUnited States
Study dates
1 Nov 2020to 5 Feb 2021
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

  • Is at least 18 years of age and has full legal capacity to volunteer;
  • Has read and signed an information consent letter;
  • Self reports having a full eye examination in the previous two years;
  • Anticipates being able to wear the study lenses for at least 8 hours a day, 7 days a week;
  • Is willing and able to follow instructions and maintain the appointment schedule;
  • Habitually wears soft contact lenses, for the past 3 months minimum;
  • Has refractive astigmatism no higher than -0.75DC in each eye;
  • Can be fit and achieve binocular distance vision of at least 20/30 Snellen (Available lens parameters are sphere -1.00 to -6.00D, 0.25D steps).

Who cannot join

  • Is participating in any concurrent clinical or research study;
  • Habitually wears one of the study contact lenses;
  • Has any known active* ocular disease and/or infection that contraindicates contact lens wear;
  • Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
  • Is using any systemic or topical medications that in the opinion of the investigator may affect contact lens wear or a study outcome variable;
  • Has known sensitivity to the diagnostic sodium fluorescein used in the study;
  • Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment;
  • Has undergone refractive error surgery or intraocular surgery.

Trial locations and contacts

4 sites in 1 country.

United States4 sites
  • Athens Eye Care

    Athens, Ohio, 45701

  • Nittany Eye Associates

    College, Pennsylvania, 16801

  • Complete Eye Care of Medina

    Medina, Minnesota, 55340

  • Sacco Eye Group, PLLC

    Vestal, New York, 13850

Other trials in United States

About this study

The main objective of the study is to refit existing soft lens wearers with two different daily disposable contact lens types, Lens A and Lens B, to determine their performance after one week of wear.

Read the detailed description

This study is a prospective, bilateral eye, double-masked, randomized, 1-week cross-over, daily-wear design involving two different daily disposable lens types. Each lens type will be worn for approximately one week, during which participants record their subjective lens-wear experience.

Conditions
Myopia
Being tested
stenfilcon A - (Test lens), kalifilcon A - (Control Lens)
Medical subject headings
Myopia

What participants receive

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

  • stenfilcon A - (Test lens)Device

    Subjects will be randomized to wear test lenses for one week.

  • kalifilcon A - (Control Lens)Device

    Subjects will be randomized to wear control lenses for one week.

Study groups in NCT04668989
Study groupRoleWhat they receive
stenfilcon A - (Test lens)ExperimentalSubjects will be randomized to wear test lenses for one week then cross-over to the control lenses for one week.
Receives: Device: stenfilcon A - (Test lens); Device: kalifilcon A - (Control Lens)
kalifilcon A - (Control Lens)Active comparatorSubjects will be randomized to wear control lenses for one week then cross-over to the test lenses for one week.
Receives: Device: stenfilcon A - (Test lens); Device: kalifilcon A - (Control Lens)

What is being measured

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

  1. Lens Wettability

    Lens wettability on a 0 to 4 descriptive scale, 0.5 steps (0 - Very poor: Immediately displaying non-wetting areas on the lens surface, immediate drying time, 1 - Poor: Irregular surface appearance, drying time << blink time, 2 - Acceptable: Smooth surface appearance immediately after the blink becoming irregular after a while, drying time ≤ blink time, 3 - Good: Typical soft lens appearance with long drying time, 4 - Excellent: Appearance similar to a healthy cornea with very long drying time)

    Measured: Baseline - after 2 hours of lens wear

  2. Lens Wettability

    Lens wettability on a 0 to 4 descriptive scale, 0.5 steps (0 - Very poor: Immediately displaying non-wetting areas on the lens surface, immediate drying time, 1 - Poor: Irregular surface appearance, drying time << blink time, 2 - Acceptable: Smooth surface appearance immediately after the blink becoming irregular after a while, drying time ≤ blink time, 3 - Good: Typical soft lens appearance with long drying time, 4 - Excellent: Appearance similar to a healthy cornea with very long drying time)

    Measured: 1 week

Timeline

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

  1. First posted16 Dec 2020
  2. Study start1 Nov 2020
  3. Primary completion5 Feb 2021
  4. Study completion5 Feb 2021

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
68 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04668989
Sponsor's protocol ID
EX-MKTG-118
Status last verified
Sep 2021
First submitted
4 Dec 2020
Last updated
16 Sep 2021
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing stenfilcon A - (Test lens) in people with Myopia, run by CooperVision, Inc. at 4 sites 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 8 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 16 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 sites 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 16 Sep 2021). 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?

Lens Wettability (time frame: Baseline - after 2 hours of lens wear). 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 16 Sep 2021.

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