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MyopiaNCT02100410

On-Eye Evaluation of Contact Lens Axis Location

A study testing Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2 and Delefilcon A toric contact lens T3 in people with Myopia and Astigmatism, run by Alcon Research.

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 purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2, 2-87-3) for an exposure time of approximately 30 minutes each. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Myopia, Astigmatism, Refractive Error
What is being tested?
Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2 and Delefilcon A toric contact lens T3
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
50 participants
Where
No sites listed yet
Study dates
Apr 2013to Apr 2013
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
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Sign written Informed Consent.
  • Best corrected distance visual acuity greater than or equal to 20/25 in each eye.
  • Other protocol-defined inclusion criteria may apply.

Who cannot join

  • History of any ocular surgery or ocular injury within 12 weeks of enrollment for this study.
  • Anterior segment disease, infection, inflammation, or abnormality that contraindicates contact lens wear.
  • History of herpetic keratitis.
  • Slit-lamp findings at baseline as specified in the protocol.
  • Any use of systemic or ocular medications for which contact lens wear could be contraindicated, including ocular medications that require instillation during contact lens wear.
  • Clinically significant dry eye not responding to treatment.
  • History of refractive surgery.
  • Other protocol-defined exclusion criteria may apply.

About this study

The purpose of this study was to evaluate the axis location of toric contact lenses after 3 minutes of wear. During this 1-visit study, each participant wore 3 pairs of study lenses of various design iterations (2-87-1, 2-87-2, 2-87-3) for an exposure time of approximately 30 minutes each. Each pair consisted of lenses of the same design iteration, 1 lens with embossed mark [TEST1 (T1), TEST3 (T3), TEST5 (T5)], worn on the right eye, and 1 lens without embossed mark [TEST2 (T2), TEST4 (T4), and TEST6 (T6)] worn on the left eye.

Being tested
Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2, Delefilcon A toric contact lens T3, Delefilcon A toric contact lens T4, Delefilcon A toric contact lens T5
Keywords
Contact Lens, Toric
Medical subject headings
Myopia, Astigmatism, Refractive Errors

What participants receive

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

  • Delefilcon A toric contact lens T1Device

    Iteration 2-87-1 with embossed mark

  • Delefilcon A toric contact lens T2Device

    Iteration 2-87-1 without embossed mark

  • Delefilcon A toric contact lens T3Device

    Iteration 2-87-2 with embossed mark

  • Delefilcon A toric contact lens T4Device

    Iteration 2-87-2 without embossed mark

  • Delefilcon A toric contact lens T5Device

    Iteration 2-87-3 with embossed mark

  • Delefilcon A toric contact lens T6Device

    Iteration 2-87-3 without embossed mark

Study groups in NCT02100410
Study groupRoleWhat they receive
Iteration 2-87-1ExperimentalDelefilcon A toric contact lenses T1 and T2 worn contralaterally (1 in each eye) for approximately 30 minutes
Receives: Device: Delefilcon A toric contact lens T1; Device: Delefilcon A toric contact lens T2
Iteration 2-87-2ExperimentalDelefilcon A toric contact lenses T3 and T4 worn contralaterally (1 in each eye) for approximately 30 minutes
Receives: Device: Delefilcon A toric contact lens T3; Device: Delefilcon A toric contact lens T4
Iteration 2-87-3ExperimentalDelefilcon A toric contact lenses T5 and T6 worn contralaterally (1 in each eye) for approximately 30 minutes
Receives: Device: Delefilcon A toric contact lens T5; Device: Delefilcon A toric contact lens T6

What is being measured

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

  1. Percentage of Lenses With Axis Orientation ≤ 10 Degrees From Ideal Location After 3 Minutes of Wear

    Axis orientation (the rotational positioning of the lens on the eye) was indicated by an axis mark. The actual location of the axis mark was evaluated during slit lamp review and compared to the ideal location for the axis mark, with the difference measured in degrees (0 to +/- 180). The ideal location for the axis mark was iteration-specific (either 6 o'clock or 3 and 9 o'clock). This outcome measure was pre-specified for the embossed lenses only (TEST1, TEST3, and TEST5).

    Measured: Day 1

Secondary outcomes (2)
  1. Lens Awareness

    Lens awareness was assessed by the participant on a 5-point scale (0=none and 4=severe) within the first 5 minutes of wear for each eye separately.

    Measured: Day 1

  2. Handling on Removal

    Handling on removal (after 30 minutes of wear) was assessed by the participant on a scale from 1 to 10 (1=poor and 10=excellent). This outcome measure was pre-specified for the embossed lenses only (TEST1, TEST3, and TEST5).

    Measured: Day 1

Timeline

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

  1. First posted1 Apr 2014 (estimated)
  2. Study startApr 2013
  3. Primary completionApr 2013
  4. Study completionApr 2013

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
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02100410
Sponsor's protocol ID
C-12-061
Status last verified
Apr 2014
First submitted
27 Mar 2014
Last updated
16 May 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Delefilcon A toric contact lens T1, Delefilcon A toric contact lens T2 and Delefilcon A toric contact lens T3 in people with Myopia and Astigmatism, run by Alcon Research.

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 16 May 2014. Status can change between updates, so confirm with the study contact before making plans.

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 May 2014). 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?

Percentage of Lenses With Axis Orientation ≤ 10 Degrees From Ideal Location After 3 Minutes of Wear (time frame: Day 1). 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 May 2014.

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