An interventional study of Delefilcon A contact lenses and Senofilcon A contact lenses in Refractive Error, sponsored by Alcon, a Novartis Company. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2018-07-02.
Sponsored by Alcon, a Novartis Company (formerly part of Novartis) · Not applicable, Interventional, and Treatment
The purpose of this study is to compare the lens fit characteristics, specifically lens centration, of ACUVUE® OASYS® 1-DAY (AO1D) contact lenses and DAILIES TOTAL1® (DT1) contact lenses.
420 studies on the registry are indexed under Refractive Errors; 59 are open to participants now.
This study's enrollment of 252 is above the median of 76 across 301 interventional studies indexed under Refractive Errors.
Browse Refractive Errors studies →Alcon, a Novartis Company is the lead sponsor of 13 studies on the registry; none are open to participants now.
First submitted before Alcon left Novartis.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Delefilcon A contact lenses worn first, followed by senofilcon A contact lenses. Each product worn bilaterally (in both eyes) for 14 days in a daily wear, daily disposable modality.
Device: Delefilcon A contact lenses · Device: Senofilcon A contact lenses
Senofilcon A contact lenses worn first, followed by delefilcon A contact lenses. Each product worn bilaterally for 14 days in a daily wear, daily disposable modality.
Device: Delefilcon A contact lenses · Device: Senofilcon A contact lenses
Also known as: DAILIES TOTAL1® (DT1)
Also known as: ACUVUE® OASYS 1-Day with HydraLuxe™ (AO1D)
Percentage of Lenses Graded as 0 or 1 for Lens Centration at Day 14
Lens centration, was assessed by the investigator for each eye individually and rated on a 5-point scale: 0=centered/optimal, 1=slight decentration, 2=mild decentration, 3=moderate decentration, 4=severe decentration. The combined percentage of lenses assessed as "centered" or "slight decentration" is reported. Lenses from both eyes contributed to the percentage.
Time frame: Day 14, each product
Ex Vivo Critical Coefficient of Friction (CCOF) at Day 14
The ex vivo CCOF (ratio of the force of friction between two bodies and the force pressing them together) was measured by the incline plane technique after 16 hours of lens wear. Worn lenses were collected and analyzed for a subset of subjects (all subjects from one site only) who attended the Day 14 visit (Visit 2 and Visit 3) after 16 hours of lens wear. Only lens worn on the right eye (OD) was measured in each subject per each lens brand. CCOF values for contact lenses range from near zero to approximately 0.10 using the inclined plane method. A lower CCOF indicates higher contact lens lubricity.
Time frame: Day 14, each product
Subjects were recruited from 12 study centers located in the United States.
| Milestone | DT1, Then AO1D | AO1D, Then DT1 |
|---|---|---|
| Started | 125 | 121 |
| Completed | 124 | 120 |
| Not completed | 1 | 1 |
| Withdrew: Withdrawal by subject | 1 | 0 |
| Withdrew: Reason not given | 0 | 1 |
| Milestone | DT1, Then AO1D | AO1D, Then DT1 |
|---|---|---|
| Started | 124 | 120 |
| Completed | 124 | 120 |
| Not completed | 0 | 0 |
Lens centration, was assessed by the investigator for each eye individually and rated on a 5-point scale: 0=centered/optimal, 1=slight decentration, 2=mild decentration, 3=moderate decentration, 4=severe decentration. The combined percentage of lenses assessed as "centered" or "slight decentration" is reported. Lenses from both eyes contributed to the percentage.
| percentage of lenses | DAILIES TOTAL1 | AO1D |
|---|---|---|
| Percentage of Lenses Graded as 0 or 1 for Lens Centration at Day 14 | 100.0 | 99.4 |
The ex vivo CCOF (ratio of the force of friction between two bodies and the force pressing them together) was measured by the incline plane technique after 16 hours of lens wear. Worn lenses were collected and analyzed for a subset of subjects (all subjects from one site only) who attended the Day 14 visit (Visit 2 and Visit 3) after 16 hours of lens wear. Only lens worn on the right eye (OD) was measured in each subject per each lens brand. CCOF values for contact lenses range from near zero to approximately 0.10 using the inclined plane method. A lower CCOF indicates higher contact lens lubricity.
| unitless | DAILIES TOTAL1 | AO1D |
|---|---|---|
| Ex Vivo Critical Coefficient of Friction (CCOF) at Day 14 | 0.0468 ± 0.00557 | 0.0675 ± 0.00599 |
Collected over Adverse events (AEs) were collected from time of consent for the duration of a subject's participation in the study (up to 35 days). AEs are reported as pre-treatment and treatment-emergent.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Pretreatment | 0/252 (0%) | 0/252 (0%) | 0/252 (0%) |
| DAILIES TOTAL1 (DT1) | 0/246 (0%) | 0/246 (0%) | 0/246 (0%) |
| ACUVUE OASYS 1-DAY (AO1D) | 0/246 (0%) | 0/246 (0%) | 0/246 (0%) |
This analysis population includes all randomized subjects who were exposed to any study lens, except for lenses used at Visit 1 for parameter optimization and fitting (Full Analysis Set).
| Age, Continuous(years) | Overall |
|---|---|
| Mean | 30.7 ± 8.44 |
| Sex: Female, Male(Participants) | Overall |
|---|---|
| Female | 183 |
| Male | 63 |
Ran from Apr 2016 to primary completion in Aug 2016, 3 months.
Results were first posted in Sep 2017, 1 year 1 month after primary completion.
Of 115 industry-sponsored interventional studies with no phase under Refractive Errors, half reached primary completion within 4 months of starting (the median), counting those still running; a quarter within 1 and three quarters within 10. This study's 3 months is below that.
Counting every sponsor, half of 172 studies reached it within 7 months; a quarter within 2 and three quarters within 23.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Aug 2017. You cannot join it, but the record below documents what was studied.
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