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MyopiaNCT05114564

Evaluation of the Performance of Monthly Replacement Sphere Lens Designs in Habitual Soft Contact Lens Wearers

A study testing Lens A (comfilcon A lens) and Lens B (lehfilcon A lens) in people with Myopia and Hyperopia, 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 objective of the study is to evaluate the clinical performance of two monthly silicone hydrogel contact lenses in habitual wearers of frequent replacement (FRP) lenses when worn for one month. Read more about this study

Who is it for?
Ages 18 to 35 yearsHealthy volunteers can take part
Conditions the study is for
Myopia, Hyperopia
What is being tested?
Lens A (comfilcon A lens) and Lens B (lehfilcon A lens)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
66 participants
Where
4 sitesUnited States
Study dates
19 Nov 2021to 22 Apr 2022
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 35 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Is at least 18 years of age and no older than 35 years, and has full legal capacity to volunteer;
  • Has read and signed an information consent letter;
  • Is willing and able to follow instructions and maintain the appointment schedule;
  • Self-reports having a full eye examination in the previous two years;
  • Self-reports spending on most days at least 6 hours cumulative (not necessarily in one single stretch) using digital devices such as a computer, laptop, tablet, e-reader, smartphone;
  • Has healthy eyes with no health condition or medication that contra-indicate contact lens wear, in the opinion of the investigator;
Show all 10Show fewer
  • Anticipates being able to wear the study lenses for at least 8 hours a day, 6 days a week;
  • Habitually wears soft frequent replacement contact lenses, for the past 3 months minimum (NOTE: the habitual contact lens brand is restricted such that no more than one third are to be the Biofinity brand (or their equivalent private label brand name) and no more than one third are to be an Alcon brand;
  • 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 +6.00 to -6.00D, 0.25D steps).

Who cannot join

  • Is participating in any concurrent clinical or research study;
  • Has any known active ocular disease and/or infection that contraindicates contact lens wear;
  • Has a systemic or ocular 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

  • ProCare Vision Center

    Granville, Ohio, 43023

  • Complete Eye Care of Medina

    Medina, Minnesota, 55340

  • Sacco Eye Group

    Vestal, New York, 13850

Other trials in United States

About this study

The objective of the study is to evaluate the clinical performance of two monthly silicone hydrogel contact lenses in habitual wearers of frequent replacement (FRP) lenses when worn for one month.

Read the detailed description

This study is a prospective, bilateral eye, double-masked, randomized, 1-month cross-over, daily-wear design involving two different FRP lens types. Each lens type will be worn for approximately one month.

Conditions
Myopia, Hyperopia
Being tested
Lens A (comfilcon A lens), Lens B (lehfilcon A lens)
Medical subject headings
Myopia, Hyperopia

What participants receive

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

  • Lens A (comfilcon A lens)Device

    1 month

  • Lens B (lehfilcon A lens)Device

    1 month

Study groups in NCT05114564
Study groupRoleWhat they receive
Lens A, Then Lens BExperimentalParticipants will wear Lens A for one month and then cross over to wear Lens B for one month.
Receives: Device: Lens A (comfilcon A lens); Device: Lens B (lehfilcon A lens)
Lens B, Then Lens AExperimentalParticipants will wear Lens B for one month and then cross over to wear Lens A for one month.
Receives: Device: Lens A (comfilcon A lens); Device: Lens B (lehfilcon A lens)

What is being measured

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

  1. Subjective Ratings on Lens Handling on Removal

    Subjective Ratings on Lens handling on removal (0-10 scale, 0.5 steps; 10=very easy, 0=very difficult)

    Measured: Day 27

Timeline

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

  1. First posted10 Nov 2021
  2. Study start19 Nov 2021
  3. Primary completion22 Apr 2022
  4. Study completion22 Apr 2022

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
66 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05114564
Sponsor's protocol ID
EX-MKTG-129
Status last verified
Mar 2023
First submitted
29 Oct 2021
Last updated
4 Apr 2023
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 Lens A (comfilcon A lens) and Lens B (lehfilcon A lens) in people with Myopia and Hyperopia, 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 10 inclusion and 7 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 4 Apr 2023. 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 4 Apr 2023). 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 Ratings on Lens Handling on Removal (time frame: Day 27). 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 Apr 2023.

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