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MyopiaNCT03974802

Refitting Somofilcon A Sphere Contact Lens Wearers Into Fanfilcon A Sphere Lenses for 4-Weeks of Wear

A study testing somofilcon A contact lens and fanfilcon A contact lens in people with Myopia, run by CooperVision, Inc. at 1 site in Mexico.

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 subject-masked prospective study is to evaluate the clinical performance of habitual wearers of Clariti Elite sphere lenses after a refit with Avaira Vitality sphere lenses. Read more about this study

Who is it for?
Ages 18 to 40 years
Conditions the study is for
Myopia
What is being tested?
somofilcon A contact lens and fanfilcon A contact lens
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteMexico
Study dates
14 May 2019to 28 Aug 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 18 to 40 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Is between 18 and 40 years of age (inclusive)
  • Has had a self-reported visual exam in the last two years
  • Is an adapted soft contact lens wearer
  • Has a contact lens spherical prescription between - 0.25 to - 8.00 (inclusive)
  • Have no less than -0.75D of astigmatism in both eyes.
  • Can achieve best corrected spectacle distance visual acuity of 20/25 (0.10 logMAR) or better in each eye.
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  • Can achieve a distance visual acuity of 20/30 (0.18 logMAR) or better in each eye with the study contact lenses.
  • Has clear corneas and no active ocular disease
  • Has read, understood and signed the information consent letter.
  • Patient contact lens refraction should fit within the available parameters of the study lenses.
  • Is willing to comply with the wear schedule (at least 5 days per week, > 8 hours/day assuming there are no contraindications for doing so).
  • Is willing to comply with the visit schedule

Who cannot join

  • Has a CL prescription outside the range of the available parameters of the study lenses.
  • Has a spectacle cylinder of ≥ 1.00D in either eye.
  • Has a history of not achieving comfortable CL wear (5 days per week; > 8 hours/day)
  • Has contact lens best corrected distance vision worse than 20/25 (0.10 logMAR) in either eye.
  • Presence of clinically significant (grade 2-4) anterior segment abnormalities
  • Presence of ocular or systemic disease or need of medications which might interfere with contact lens wear.
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  • Slit lamp findings that would contraindicate contact lens wear such as:
  • Pathological dry eye or associated findings
  • Pterygium, pinguecula, or corneal scars within the visual axis
  • Neovascularization > 0.75 mm in from of the limbus
  • Giant papillary conjunctivitis (GCP) worse than grade 1
  • Anterior uveitis or iritis (past or present)
  • Seborrheic eczema, Seborrheic conjunctivitis
  • History of corneal ulcers or fungal infections
  • Poor personal hygiene
  • Has a known history of corneal hypoesthesia (reduced corneal sensitivity)
  • Has aphakia, keratoconus or a highly irregular cornea.
  • Has Presbyopia or has dependence on spectacles for near work over the contact lenses.
  • Has undergone corneal refractive surgery.
  • Is participating in any other type of eye related clinical or research study.

Trial locations and contacts

1 site in 1 country.

Mexico1 site
  • Optometry Clinic, National Autonomous University

    Mexico City, 54090

Other trials in Mexico

About this study

The aim of this subject-masked prospective study is to evaluate the clinical performance of habitual wearers of Clariti Elite sphere lenses after a refit with Avaira Vitality sphere lenses.

Read the detailed description

The aim of this subject-masked prospective study is to evaluate the clinical performance of habitual wearers of Clariti Elite sphere lenses after a refit with Avaira Vitality sphere lenses for 4 weeks of daily wear.

Conditions
Myopia
Being tested
somofilcon A contact lens, fanfilcon A contact lens
Medical subject headings
Myopia

What participants receive

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

  • somofilcon A contact lensDevice

    Also called clariti elite, Habitual lens

    Contact Lens

  • fanfilcon A contact lensDevice

    Also called Avaira Vitality, Test lens

    Contact Lens

Study groups in NCT03974802
Study groupRoleWhat they receive
somofilcon A (habitual) lens, then fanfilcon A (test) lensExperimentalParticipants are habitual wearers of somofilcon A lens and refitted with fanfilcon A lens.
Receives: Device: somofilcon A contact lens; Device: fanfilcon A contact lens

What is being measured

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

  1. Lens Centration for Somofilcon A (Habitual) Lens

    Lens Centration was measured using a 3-point scale (1=optimal centration, 2=decentration acceptable, 3=decentration unacceptable).

    Measured: Baseline

  2. Lens Centration for Somofilcon A (Habitual) Lens

    Lens Centration was measured using a 3-point scale (1=optimal centration, 2=decentration acceptable, 3=decentration unacceptable).

    Measured: 4- weeks

  3. Lens Centration for Fanfilcon A (Test) Lens

    Lens Centration was measured using a 3-point scale (1=optimal centration, 2=decentration acceptable, 3=decentration unacceptable).

    Measured: Baseline

  4. Lens Centration for Fanfilcon A (Test) Lens

    Lens Centration was measured using a 3-point scale (1=optimal centration, 2=decentration acceptable, 3=decentration unacceptable).

    Measured: 2-weeks

  5. Lens Centration for Fanfilcon A (Test) Lens

    Lens Centration was measured using a 3-point scale(1=optimal centration, 2=decentration acceptable, 3=decentration unacceptable).

    Measured: 4- weeks

  6. Lens Corneal Coverage for Somofilcon A (Habitual) Lens

    Lens Corneal Coverage was rated as either Yes or No (Yes = full corneal coverage all time / no= incomplete corneal coverage)

    Measured: Baseline

  7. Lens Corneal Coverage for Somofilcon A (Habitual) Lens

    Lens Corneal Coverage was rated as either Yes or No (Yes = full corneal coverage all time / no= incomplete corneal coverage)

    Measured: 4 -weeks

  8. Lens Corneal Coverage for Fanfilcon A (Test) Lens

    Lens Corneal Coverage was rated as either Yes or No (Yes = full corneal coverage all time / no= incomplete corneal coverage)

    Measured: Baseline

  9. Lens Corneal Coverage for Fanfilcon A (Test) Lens

    Lens Corneal Coverage was rated as either Yes or No (Yes = full corneal coverage all time / no= incomplete corneal coverage)

    Measured: 2-weeks

  10. Lens Corneal Coverage for Fanfilcon A (Test) Lens

    Lens Corneal Coverage was rated as either Yes or No (Yes = full corneal coverage all time / no= incomplete corneal coverage)

    Measured: 4-weeks

  11. Percentage of Lens Tightness for Somofilcon A (Habitual) Lens

    Lens Tightness: Push Up Test measured by 0% to 100% continuous scale (0%-falls from cornea without lid support, 50% = optimum, and 100% = no movement)

    Measured: Baseline

  12. Percentage of Lens Tightness for Somofilcon A (Habitual) Lens

    Lens Tightness: Push Up Test measured by 0% to 100% continuous scale (0%-falls from cornea without lid support, 50% = optimum, and 100% = no movement)

    Measured: 4-Weeks

  13. Percentage of Lens Tightness for Fanfilcon A (Test) Lens

    Lens Tightness: Push Up Test measured by 0% to 100% continuous scale (0%-falls from cornea without lid support, 50% = optimum, and 100% = no movement)

    Measured: Baseline

  14. Percentage of Lens Tightness for Fanfilcon A (Test) Lens

    Lens Tightness: Push Up Test measured by 0% to 100% continuous scale (0%-falls from cornea without lid support, 50% = optimum, and 100% = no movement)

    Measured: 2-Weeks

  15. Percentage of Lens Tightness for Fanfilcon A (Test) Lens

    Lens Tightness: Push Up Test measured by 0% to 100% continuous scale (0%-falls from cornea without lid support, 50% = optimum, and 100% = no movement)

    Measured: 4-Weeks

  16. Post-Blink Movement for Somofilcon A (Habitual) Lens

    Post-Blink movement was measured on a scale 0-4 (0=Insufficient, unacceptable movement, 4 = Excessive, unacceptable movement)

    Measured: Baseline

  17. Post-Blink Movement for Somofilcon A (Habitual) Lens

    Post-Blink movement was measured on a scale 0-4 (0=Insufficient, unacceptable movement, 4 = Excessive, unacceptable movement)

    Measured: 4-weeks

  18. Post-Blink Movement for Fanfilcon A (Test) Lens

    Post-Blink movement was measured on a scale 0-4 (0=Insufficient, unacceptable movement, 4 = Excessive, unacceptable movement)

    Measured: Baseline

  19. Post-Blink Movement for Fanfilcon A (Test) Lens

    Post-Blink movement was measured on a scale 0-4 (0=Insufficient, unacceptable movement, 4 = Excessive, unacceptable movement)

    Measured: 2-weeks

  20. Post-Blink Movement for Fanfilcon A (Test) Lens

    Post-Blink movement was measured on a scale 0-4 (0=Insufficient, unacceptable movement, 4 = Excessive, unacceptable movement)

    Measured: 4-weeks

  21. Overall Lens Fit Acceptance for Somofilcon A (Habitual) Lens

    Overall fit acceptance was measured using a scale of 0-4 (0= should not be worn, 1 = borderline but unacceptable, 2 = min. acceptable, early review, 3 = not perfect but OK to dispense, and 4 = perfect)

    Measured: Baseline

  22. Overall Lens Fit Acceptance for Somofilcon A (Habitual) Lens

    Overall fit acceptance was measured using a scale of 0-4 (0= should not be worn, 1 = borderline but unacceptable, 2 = min. acceptable, early review, 3 = not perfect but OK to dispense, and 4 = perfect)

    Measured: 4-weeks

  23. Overall Lens Fit Acceptance for Fanfilcon A (Test) Lens

    Overall fit acceptance was measured using a scale of 0-4 (0= should not be worn, 1 = borderline but unacceptable, 2 = min. acceptable, early review, 3 = not perfect but OK to dispense, and 4 = perfect)

    Measured: Baseline

  24. Overall Lens Fit Acceptance for Fanfilcon A (Test) Lens

    Overall fit acceptance was measured using a scale of 0-4 (0= should not be worn, 1 = borderline but unacceptable, 2 = min. acceptable, early review, 3 = not perfect but OK to dispense, and 4 = perfect)

    Measured: 2-weeks

  25. Overall Lens Fit Acceptance for Fanfilcon A (Test) Lens

    Overall fit acceptance was measured using a scale of 0-4 (0= should not be worn, 1 = borderline but unacceptable, 2 = min. acceptable, early review, 3 = not perfect but OK to dispense, and 4 = perfect)

    Measured: 4-weeks

Secondary outcomes (6)
  1. Average Daily Wearing Time - Somofilcon A (Habitual) Lens

    Average Daily Wearing Time for somofilcon A (Habitual) lens - measured by time hours/day

    Measured: 4-weeks

  2. Average Daily Wearing Time - Fanfilcon A (Test) Lens

    Average daily wearing time for fanfilcon A (test) lens was measured in hours/day

    Measured: 2-weeks

  3. Average Daily Wearing Time - Fanfilcon A (Test) Lens

    Average daily wearing time for fanfilcon A (test) lens was measured in hours/day

    Measured: 4-weeks

  4. Average Comfortable Wearing Time - Somofilcon A (Habitual) Lens

    Average Comfortable Wearing Time - somofilcon A (habitual) Lens measured in hours/day. Assessed using typical time of day when subject first experiences lens awareness or irritation.

    Measured: 4 weeks

  5. Average Comfortable Wearing Time - Fanfilcon A (Test) Lens

    Average Comfortable Wearing Time - fanfilcon A (test) Lens measured in hours/day. Assessed using typical time of day when subject first experiences lens awareness or irritation.

    Measured: 2 weeks

  6. Average Comfortable Wearing Time - Fanfilcon A (Test) Lens

    Average Comfortable Wearing Time - fanfilcon A (test) Lens measured in hours/day. Assessed using typical time of day when subject first experiences lens awareness or irritation.

    Measured: 4 weeks

Timeline

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

  1. First posted5 Jun 2019
  2. Study start14 May 2019
  3. Primary completion24 Jul 2019
  4. Study completion28 Aug 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
Not applicable
Intervention model
Single group
Model description
First pair of study lenses (habitual lenses) will be dispensed and worn for 4 weeks for daily wear, then second pair of lenses (test lenses) will be dispensed and worn for 4 weeks for daily wear.
Masking
None (open label)
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03974802
Sponsor's protocol ID
EX-MKTG-101
Status last verified
Aug 2020
First submitted
3 Jun 2019
Last updated
18 Aug 2020
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 somofilcon A contact lens and fanfilcon A contact lens in people with Myopia, run by CooperVision, Inc. at 1 site in Mexico.

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 12 inclusion and 20 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 18 Aug 2020. 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 Mexico. 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 18 Aug 2020). 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 Centration for Somofilcon A (Habitual) Lens (time frame: Baseline). The study lists 25 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 18 Aug 2020.

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