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AstigmatismNCT06431061

Clinical Evaluation of Proclear Toric and Biofinity Toric

A study testing Lens A (omafilcon B) and Lens B (comfilcon A) in people with Astigmatism, run by CooperVision, Inc. at 1 site in Canada.

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 aim of this study is to compare the short-term clinical performance of two Toric contact lenses. Read more about this study

Who is it for?
Ages 17 years and older
Conditions the study is for
Astigmatism
What is being tested?
Lens A (omafilcon B) and Lens B (comfilcon A)
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
37 participants
Where
1 siteCanada
Study dates
4 Jun 2024to 13 Nov 2024
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 17 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Are at least 17 years of age and has full legal capacity to volunteer.
  • Have understood and signed an information consent letter.
  • Are willing and able to follow instructions and maintain the appointment schedule.
  • Are an adapted soft toric contact lens wearer.
  • Do not habitually wear either of the two study lens types.
  • Have a vertex-corrected contact lens prescription with a spherical component of +4.00D to -9.00D in combination with astigmatism of no less than -0.75D and no more than -2.25D in each eye.
  • Can achieve best corrected distance visual acuity of +0.10 logMAR (subjective refraction) or better in each eye.
  • Can be fitted with and achieve a distance visual acuity of +0.18 logMAR or better in each eye with the study contact lenses.

Who cannot join

  • Are participating in any concurrent clinical or research study.
  • Have any known active ocular disease and/or infection or slit lamp findings that would contraindicate contact lens use.
  • Have a systemic condition that in the opinion of the investigator may affect a study outcome variable.
  • Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable.
  • Have known sensitivity to the diagnostic pharmaceuticals to be used in the study.
  • Have a history of not achieving comfortable CL use (5 days per week; > 8 hours/day)
  • Are an employee of the Centre for Ocular Research \& Education directly involved in the study (i.e. on the delegation log).

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Waterloo

    Waterloo

Other trials in Canada

About this study

The aim of this study is to compare the short-term clinical performance of two Toric contact lenses.

Read the detailed description

The aim of the study is to evaluate and compare the performance of two soft toric contact lenses in existing soft toric lens wearers in a short term (15 minutes wear) study.

Conditions
Astigmatism
Being tested
Lens A (omafilcon B), Lens B (comfilcon A)
Medical subject headings
Astigmatism

What participants receive

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

  • Lens A (omafilcon B)Device

    15 minutes of daily wear.

  • Lens B (comfilcon A)Device

    15 minutes of daily wear.

Study groups in NCT06431061
Study groupRoleWhat they receive
Lens A (omafilcon B)ExperimentalAll participants will wear lens A for 15 minutes (Period 1).
Receives: Device: Lens A (omafilcon B)
Lens B (comfilcon A)ExperimentalAll participants will wear lens B for 15 minutes (Period 2).
Receives: Device: Lens B (comfilcon A)

What is being measured

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

  1. Overall Fit Acceptance

    Overall fit acceptance will be measured on scale of (0-4) where (0=Should not be worn and 4=Perfect)

    Measured: After 15 minutes of continuous wear

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 2024
  2. Study start4 Jun 2024
  3. Primary completion13 Nov 2024
  4. Study completion13 Nov 2024

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
Non-randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
37 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06431061
Sponsor's protocol ID
EX-MKTG-158
Status last verified
Aug 2025
First submitted
22 May 2024
Last updated
15 Sep 2025
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 (omafilcon B) and Lens B (comfilcon A) in people with Astigmatism, run by CooperVision, Inc. at 1 site in Canada.

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 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 15 Sep 2025. 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 Canada. 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 15 Sep 2025). 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?

Overall Fit Acceptance (time frame: After 15 minutes of continuous wear). 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 15 Sep 2025.

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