AstigmatismNCT00584727
In-office Evaluation of Two Toric Soft Contact Lenses and a Spherical Soft Contact Lens
A study testing senofilcon A toric contact lens, alphafilcon A toric and etafilcon A sphere in people with Astigmatism, run by Johnson & Johnson Vision Care, Inc..
Trial summary
The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric and a spherical contact lens currently available in market, specifically with regards to the fit and visual acuity as well as the comfort, vision and satisfaction while in the practitioner's office. Read more about this study
- Who is it for?
- Ages 18 to 39 years
- Conditions the study is for
- Astigmatism
- What is being tested?
- senofilcon A toric contact lens, alphafilcon A toric and etafilcon A sphere
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 96 participants
- Where
- No sites listed yet
- Study dates
- Sep 2007to Nov 2007
- 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 39 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- be at least 18 and less than or equal to 39 years of age and have a need for vision correction in BOTH eyes (monovision or uniocular fitting is NOT allowed).
- be of Asian descent (Japanese, Chinese, Korean, Polynesian or other Asian ancestry) and have Asian Eye anatomy
- have successfully worn toric or spherical soft (hydrogel or silicone hydrogel) contact lenses for at least 4-weeks prior to enrollment in the study.
- be able and willing to adhere to the instructions set forth in the protocol.
- agree to wear their contact lenses in both eyes on a daily wear schedule for at least 8 hours per day every day during the study.
- have a distance spherical component between -1.00 D and -5.50 D with cylinder in the range of 0.75 D to 2.25 D and cylinder axis within 10 ° of the vertical and within 20 ° of the horizontal in both eyes
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- have a best corrected manifest refraction visual acuity of at least 20/25 or better in each eye.
- be in good general health, based on his/her knowledge.
- read, be given an explanation of, indicate understanding of, and sign the STATEMENT OF INFORMED CONSENT.
Who cannot join
- The subject is a rigid gas permeable (RGP) or daily disposable soft lens wearer.
- The presence of clinically significant (grade 3 or 4) anterior segment abnormalities; inflammations such as iritis; or any infection of the eye, lids, or associated structures.
- The presence of ocular or systemic disease or need for medication which might interfere with contact lens wear or which would cause the lenses to be removed more than twice a day. (i.e., Sjögren's syndrome, type II diabetes, etc).
- Slit lamp findings that would contraindicate contact lens wear such as:
- Pathological dry eye or associated findings
- Pterygium or corneal scars within the visual axis
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- Neovascularization >1mm in from the limbus
- History of giant papillary conjunctivitis (GPC) worse than Grade 2
- Anterior uveitis or iritis (past or present)
- Seborrhoeic eczema, seborrhoeic conjunctivitis
- A history of recurrent erosions, corneal infiltrates, corneal ulcer or fungal infections.
- A known history of corneal hypoesthesia (reduced corneal sensitivity.)
- Aphakia, keratoconus or a highly irregular cornea.
- Current pregnancy or lactation (to the best of the subject's knowledge).
- Active participation in another clinical study at any time during this study.
About this study
Official title: Evaluation of Fit and Visual Acuity of the Cypress Toric Lens in Two Phases: Part A: A Non-Dispensing Comparison to SofLens66® Toric and Acuvue® 2
The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric and a spherical contact lens currently available in market, specifically with regards to the fit and visual acuity as well as the comfort, vision and satisfaction while in the practitioner's office. Approximately 2 hours duration.
Read the detailed description
Non-dispensing, single-masked (subject-masked), randomised, controlled study.
- Conditions
- Astigmatism
- Being tested
- senofilcon A toric contact lens, alphafilcon A toric, etafilcon A sphere
- Keywords
- astigmatism, visual acuity, fit, comfort, satisfaction, contact lens
- Medical subject headings
- Astigmatism, Personal Satisfaction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
senofilcon A toric contact lensDevice
contact lens
alphafilcon A toricDevice
contact lens
etafilcon A sphereDevice
contact lens
| Study group | Role | What they receive |
|---|---|---|
| senofilcon A/alphafilcon A/etafilcon A | Active comparator | First intervention:senofilcon A toric contact lenses Second intervention: alphafilcon A toric contact lenses Third intervention: etafilcon A sphere contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
| alphafilcon A/etafilcon A/senofilcon A | Active comparator | First intervention: alphafilcon A toric contact lenses Second intervention: etafilcon A sphere contact lenses Third intervention: senofilcon A toric contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
| etafilcon A/senofilcon A/alphafilcon A | Active comparator | First intervention: etafilcon A sphere contact lenses Second intervention:senofilcon A toric contact lenses Third intervention: alphafilcon A toric contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
| senofilcon A/etafilcon A/alphafilcon A | Active comparator | First intervention: senofilcon A toric contact lenses Second intervention: etafilcon A sphere contact lenses Third intervention: alphafilcon A toric contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
| alphafilcon A/senofilcon A/etafilcon A | Active comparator | First intervention: alphafilcon A toric contact lenses Second intervention: senofilcon A toric contact lenses Third intervention: etafilcon A sphere contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
| etafilcon A/alphafilcon A/senofilcon A | Active comparator | First intervention: etafilcon A sphere contact lenses Second intervention: alphafilcon A toric contact lenses Third intervention: senofilcon A toric contact lenses Receives: Device: senofilcon A toric contact lens; Device: alphafilcon A toric; Device: etafilcon A sphere |
What is being measured
The primary outcome is the main question the study is designed to answer.
Visual Acuity
Number of eyes with Distance Visual Acuity 20/20 or better
Measured: 15-20 minutes
Patient Reported Vision
A weighted combined score calculated from individual confort-vision related questions asked on a 1-5 scale, 1=most negative resonse to 5=most positive response, was used to derive vision scores. The analysis shows the difference in outcome between test and control. >0=greater vision, <0=lesser vision.
Measured: 15-20 minutes
Lens Orientation Within 5 Degrees
Meaures in what position does the lens sit on the eye at insertion and is measured in degrees of rotation.
Measured: 1 minute
Lens Stability Within 5 Degrees
Measures if the lens changes position on the eye as it is worn and is measured in degrees of rotation.
Measured: 1 minute
Patient Reported Comfort.
A weighted combined score calculated from individual comfort-related questions asked on a 1-5 scale, 1=most negative response to 5=most positive response, was used to derive comfort outcomes. The analysis shows the difference in outcome between the test and control. >0=comfortable, <0=uncomfortable
Measured: 15-20 minutes
Patient Preference
This outcome measures which lens the subjects preferred to wear.
Measured: end of study
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Jan 2008 (estimated)
- Study startSep 2007
- Primary completionNov 2007
- Study completionNov 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for AstigmatismStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Single blind
- Who is masked
- Participant
- Enrolment
- 96 participants (actual)
Sponsor and investigators
- Lead sponsor
- Johnson & Johnson Vision Care, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Foresight Regulatory Strategies, Inc.
- Investigators
- Jason Chin, O.D., Principal investigatorJames Fujimoto, O.D., Principal investigatorWeslie Hamada, OlD., Principal investigator, Arthur T. Kobayashi, O.D., Inc.Dennis Kuwuabara, O.D., Principal investigator, Eye Care Associates of HawaiiMark Nakano, O.D., Principal investigator, Mark E. Nakano Optometric Corp.Ikuko Sugimoto, O.D., Principal investigatorKevin Rosin, O.D., Principal investigator, Drs. Farkas, Kassalow, Resnick & AssociatesJennifer Kao, O.D., Principal investigator
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00584727
- Sponsor's protocol ID
- CR-0714A
- Status last verified
- May 2015
- First submitted
- 20 Dec 2007
- Last updated
- 21 May 2015
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 21 May 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Fit and Visual Acuity of the Cypress Toric Lens in Two Phases: Part A: A Non-Dispensing Comparison to SofLens66® Toric and Acuvue® 2
- ClinicalTrials.gov ID
- NCT00584727
- Acronym / sponsor ID
- CR-0714A
- Conditions
- Astigmatism
- Keywords
- astigmatism, visual acuity, fit, comfort, satisfaction, contact lens
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 96 participants (actual)
- Lead sponsor
- Johnson & Johnson Vision Care, Inc.Industry (pharma, biotech, devices)
- Collaborators
- Foresight Regulatory Strategies, Inc.
- Study start
- Sep 2007
- Primary completion
- Nov 2007 (actual)
- Study completion
- Nov 2007 (actual)
- First posted
- 2 Jan 2008 (estimated)
- Results
- Posted 10 Feb 2010
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine the relative performance of a new toric soft contact lens against a toric and a spherical contact lens currently available in market, specifically with regards to the fit and visual acuity as well as the comfort, vision and satisfaction while in the practitioner's office. Approximately 2 hours duration.
Detailed description
Non-dispensing, single-masked (subject-masked), randomised, controlled study.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (participant)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| senofilcon A/alphafilcon A/etafilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention:senofilcon A toric contact lenses Second intervention: alphafilcon A toric contact lenses Third intervention: etafilcon A sphere contact lenses |
| alphafilcon A/etafilcon A/senofilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention: alphafilcon A toric contact lenses Second intervention: etafilcon A sphere contact lenses Third intervention: senofilcon A toric contact lenses |
| etafilcon A/senofilcon A/alphafilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention: etafilcon A sphere contact lenses Second intervention:senofilcon A toric contact lenses Third intervention: alphafilcon A toric contact lenses |
| senofilcon A/etafilcon A/alphafilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention: senofilcon A toric contact lenses Second intervention: etafilcon A sphere contact lenses Third intervention: alphafilcon A toric contact lenses |
| alphafilcon A/senofilcon A/etafilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention: alphafilcon A toric contact lenses Second intervention: senofilcon A toric contact lenses Third intervention: etafilcon A sphere contact lenses |
| etafilcon A/alphafilcon A/senofilcon A | Active comparator | Device: senofilcon A toric contact lens, Device: alphafilcon A toric, Device: etafilcon A sphereFirst intervention: etafilcon A sphere contact lenses Second intervention: alphafilcon A toric contact lenses Third intervention: senofilcon A toric contact lenses |
Who may qualify
- Ages
- 18 to 39 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (9 listed)
- be at least 18 and less than or equal to 39 years of age and have a need for vision correction in BOTH eyes (monovision or uniocular fitting is NOT allowed).
- be of Asian descent (Japanese, Chinese, Korean, Polynesian or other Asian ancestry) and have Asian Eye anatomy
- have successfully worn toric or spherical soft (hydrogel or silicone hydrogel) contact lenses for at least 4-weeks prior to enrollment in the study.
- be able and willing to adhere to the instructions set forth in the protocol.
- agree to wear their contact lenses in both eyes on a daily wear schedule for at least 8 hours per day every day during the study.
Key exclusion criteria (15 listed)
- The subject is a rigid gas permeable (RGP) or daily disposable soft lens wearer.
- The presence of clinically significant (grade 3 or 4) anterior segment abnormalities; inflammations such as iritis; or any infection of the eye, lids, or associated structures.
- The presence of ocular or systemic disease or need for medication which might interfere with contact lens wear or which would cause the lenses to be removed more than twice a day. (i.e., Sjögren's syndrome, type II diabetes, etc).
- Slit lamp findings that would contraindicate contact lens wear such as:
- A history of recurrent erosions, corneal infiltrates, corneal ulcer or fungal infections.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| senofilcon A toric contact lenscontact lens | Device | alphafilcon A/etafilcon A/senofilcon A, alphafilcon A/senofilcon A/etafilcon A, etafilcon A/alphafilcon A/senofilcon A, etafilcon A/senofilcon A/alphafilcon A, senofilcon A/alphafilcon A/etafilcon A, senofilcon A/etafilcon A/alphafilcon A |
| alphafilcon A toriccontact lens | Device | alphafilcon A/etafilcon A/senofilcon A, alphafilcon A/senofilcon A/etafilcon A, etafilcon A/alphafilcon A/senofilcon A, etafilcon A/senofilcon A/alphafilcon A, senofilcon A/alphafilcon A/etafilcon A, senofilcon A/etafilcon A/alphafilcon A |
| etafilcon A spherecontact lens | Device | alphafilcon A/etafilcon A/senofilcon A, alphafilcon A/senofilcon A/etafilcon A, etafilcon A/alphafilcon A/senofilcon A, etafilcon A/senofilcon A/alphafilcon A, senofilcon A/alphafilcon A/etafilcon A, senofilcon A/etafilcon A/alphafilcon A |
Primary outcome
Visual Acuity
Time frame: 15-20 minutes
Number of eyes with Distance Visual Acuity 20/20 or better
Patient Reported Vision
Time frame: 15-20 minutes
A weighted combined score calculated from individual confort-vision related questions asked on a 1-5 scale, 1=most negative resonse to 5=most positive response, was used to derive vision scores. The analysis shows the difference in outcome between test and control. >0=greater vision, <0=lesser vision.
Lens Orientation Within 5 Degrees
Time frame: 1 minute
Meaures in what position does the lens sit on the eye at insertion and is measured in degrees of rotation.
Lens Stability Within 5 Degrees
Time frame: 1 minute
Measures if the lens changes position on the eye as it is worn and is measured in degrees of rotation.
Patient Reported Comfort.
Time frame: 15-20 minutes
A weighted combined score calculated from individual comfort-related questions asked on a 1-5 scale, 1=most negative response to 5=most positive response, was used to derive comfort outcomes. The analysis shows the difference in outcome between the test and control. >0=comfortable, <0=uncomfortable
Patient Preference
Time frame: end of study
This outcome measures which lens the subjects preferred to wear.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 May 2015.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jason Chin, O.D. principal investigator
James Fujimoto, O.D. principal investigator
Weslie Hamada, OlD. principal investigator
Arthur T. Kobayashi, O.D., Inc.
Questions about this trial
What is this clinical trial studying?
A study testing senofilcon A toric contact lens, alphafilcon A toric and etafilcon A sphere in people with Astigmatism, run by Johnson & Johnson Vision Care, Inc..
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 9 inclusion and 15 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 21 May 2015. 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 10 Feb 2010). 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?
Visual Acuity (time frame: 15-20 minutes). 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 21 May 2015.