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AstigmatismNCT02801006

The Clinical Study of Silicone Hydrogel Daily Disposable Stenfilcon A Toric Lens

A study testing stenfilcon A and etafilcon A in people with Astigmatism, run by CooperVision, Inc. at 2 sites in Japan.

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 evaluate the clinical performance of stenfilcon A toric lenses compared with etafilcon A toric lenses for astigmatism. If it is valuable, the clinical performance of stenfilcon A toric lens is also evaluated compared with habitual lenses. Read more about this study

Who is it for?
Ages 18 to 42 yearsHealthy volunteers can take part
Conditions the study is for
Astigmatism
What is being tested?
stenfilcon A and etafilcon A
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
2 sitesJapan
Study dates
Apr 2016to 31 Oct 2016
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 42 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • A person is eligible for inclusion in the study if he/she:
  • Is between 18 years of age and 42 years of age.
  • Soft contact lens wearers who are not required to have Presbyopic correction.
  • Soft contact lens wearers without trouble.
  • Soft contact lens wearers who have the correctable astigmatism by lenses used in this study in the both eyes.
  • Has a prescribed SCL (Soft Contact Lens) power within the range of powers of the SCL for astigmatism which is used in this study.
Show all 10Show fewer
  • Can achieve a corrected visual acuity of 1.0 or better.
  • Can read and understand the study information document, and sign the participation consent form.
  • Can visit the clinic at designated examination visits.
  • Has received periodical examinations at an eye clinic within the past two years.

Who cannot join

  • A person will be excluded from the study if he/she:
  • Has a systemic disease that may affect the ocular health.
  • Is pregnant or lactating.
  • Has received a systemic or local medication that may affect this study.
  • Has an infectious eye disease.
  • Has eye and systemic active allergic diseases that interferes with SCL wear.
Show all 10Show fewer
  • Has an eye disease which is clinically judged to be severe such as corneal vascularization, limbal hyperemia, and corneal epithelium disorder
  • Has a history of hard contact lens wear within 30 days.
  • Is currently participating in another clinical research study.
  • Has undergone refractive surgery.

Trial locations and contacts

2 sites in 1 country.

Japan2 sites
  • Dougenzaka Ioti Eye Clinic

    Shibuya City, Tokyo-to, 150-0043

  • Kodama Eye Clinic

    Terada, Kyoto, 610-0121

Other trials in Japan

About this study

The aim of this study is to evaluate the clinical performance of stenfilcon A toric lenses compared with etafilcon A toric lenses for astigmatism. If it is valuable, the clinical performance of stenfilcon A toric lens is also evaluated compared with habitual lenses.

Read the detailed description

This is a multi-sites, 50 subjects, randomized, open labeled, bilateral wear, dispensing study. Participants will be randomized to wear first lens pair for two weeks, and then crossover to second lens pair for two weeks.

Conditions
Astigmatism
Being tested
stenfilcon A, etafilcon A
Medical subject headings
Astigmatism

What participants receive

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

  • stenfilcon ADevice

    contact lens

  • etafilcon ADevice

    contact lens

Study groups in NCT02801006
Study groupRoleWhat they receive
stenfilcon AExperimentalParticipants will be randomized to wear stenfilcon A lens pair for two weeks during the cross over study.
Receives: Device: stenfilcon A
etafilcon AActive comparatorParticipants will be randomized to wear etafilcon A lens pair for two weeks during the cross over study.
Receives: Device: etafilcon A

What is being measured

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

  1. Comfort

    Wearing comfort (throughout the day) for stenfilcon A and etafilcon A toric lens pair is assessed. Scale 0-10, 0= extremely uncomfortable cannot wear at all, 10=very comfortable and feel no lens at all

    Measured: 2 weeks

  2. Dryness

    Dryness (throughout the day) for stenfilcon A and etafilcon A toric lens pair is assessed. Scale 0-10, 0=extremely dried and cannot wear lens, 10=feel no dryness at all

    Measured: 2 weeks

  3. Clarity of Vision

    Clarity of vision (throughout the day) for stenfilcon A and etafilcon A toric lens pair is assessed. Scale 0-10, 0=blur vision and cannot see at all, 10=very clear with no blur vision at all

    Measured: 2 weeks

  4. Stability of Vision

    Stability of vision (throughout the day) for stenfilcon A and etafilcon A toric lens pair is assessed. Scale 0-10, 0=unstable vision and cannot see at all, 10=always stable vision

    Measured: 2 weeks

  5. Lens Handling

    Lens handling for stenfilcon A and etafilcon A toric lens pair is assessed. Scale 0-10, 0=cannot handle at all, 10=no problem at all

    Measured: 2 weeks

  6. Overall Satisfaction

    Overall satisfaction for stenfilcon A and etafilcon A toric lens pair is assessed. scale 0-10, 0=extremely un-satisfy, 10=very satisfy

    Measured: 2 weeks

Timeline

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

  1. First posted15 Jun 2016 (estimated)
  2. Study startApr 2016
  3. Primary completionJun 2016
  4. Study completion31 Oct 2016

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
None (open label)
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02801006
Sponsor's protocol ID
JP-MKTG-201603
Status last verified
Dec 2017
First submitted
10 Jun 2016
Last updated
9 Jan 2018
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing stenfilcon A and etafilcon A in people with Astigmatism, run by CooperVision, Inc. at 2 sites in Japan.

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 10 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 9 Jan 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Japan. 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 12 Dec 2017). 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?

Comfort (time frame: 2 weeks). The study lists 6 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 9 Jan 2018.

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