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Dry EyeCORGINCT04105842

Refitting Daily Disposable Contact Lens Wearers With Dry Eye Disease With A Different Daily Disposable Lens Type

A study testing Delfilcon A in people with Dry Eye, run by University of Waterloo at 1 site in Canada.

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 is to refit habitual wearers of daily disposable contact lenses who currently experience symptoms of dry eye and discomfort during lens wear with a different type of daily disposable contact lens. Read more about this study

Who is it for?
Ages 17 years and olderHealthy volunteers can take part
Conditions the study is for
Dry Eye
What is being tested?
Delfilcon A
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteCanada
Study dates
23 Sep 2019to 28 Jul 2022
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 17 years and older
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Is at least 17 years of age and has full legal capacity to volunteer;
  • Has read and signed an information consent letter;
  • Is willing and able to follow instructions and maintain the appointment schedule;
  • As per TFOS DEWS II, have dry eye symptoms (without CL wear) as determined by an OSDI score of ≥13 and at least one of the following:
  • Tear osmolarity ≥ 308mOsm/L or interocular difference >8 mOsm/L
  • Non-invasive tear breakup time of < 10 seconds in at least one eye
Show all 13Show fewer
  • More than 5 spots of corneal staining OR > 9 conjunctival spots in at least one eye
  • Reports dryness while wearing DD CLs with CLDEQ-8 score ≥ 12 and ≤ 203
  • Habitually wears soft spherical DD CLs with a power between +6.00D and -10.00D
  • Manifest spectacle cyl ≤1.00DC in either eye
  • BCVA ≤0.20 log MAR each eye with habitual \& DT1
  • Acceptable fit with habitual \& DT1
  • Willing to wear DT1 CLs at least 3 days per week and 6 hours per day throughout the study

Who cannot join

  • Is participating in any concurrent clinical or research study;
  • Has any known active* ocular disease and/or infection;
  • Has a systemic condition that in the opinion of the investigator may affect a study outcome variable;
  • Is using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable;
  • Has known sensitivity to the diagnostic pharmaceuticals to be used in the study;
  • Is pregnant, lactating or planning a pregnancy at the time of enrolment (by self-report);
Show all 12Show fewer
  • Is aphakic;
  • Has undergone refractive error surgery;
  • Has taken part in another clinical research study within the last 14 days;
  • Current habitual wearer of DT1
  • Any ocular and/or systemic conditions or concomitant medication to contraindicate contact lens wear or be expected to interfere with the primary outcome variables.
  • For the purposes of this study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Centre for Ocular Research & Education

    Waterloo, Ontario, N2B 3K4

Other trials in Canada

About this study

The purpose of this study is to refit habitual wearers of daily disposable contact lenses who currently experience symptoms of dry eye and discomfort during lens wear with a different type of daily disposable contact lens. Ocular signs and symptoms of dry eye will be assessed following the guidelines outlined by the Tear Film and Ocular Surface Society (TFOS) in the Dry Eye Workshop II (DEWS II). The performance of the habitual contact lenses and the study lenses will be determined using different optometric assessments. Study lenses will be worn for one month following a daily disposable wear schedule.

Conditions
Dry Eye
Being tested
Delfilcon A
Medical subject headings
Dry Eye Syndromes

What participants receive

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

  • Delfilcon ADevice

    Also called Dailies Total 1

    Participants wear delafilcon A contact lenses on a daily disposable basis.

Study groups in NCT04105842
Study groupRoleWhat they receive
Delfilcon AExperimentalAll study participants will be refit with Delfilcon A (Dailies Total 1) lenses which they will wear for 1 month.
Receives: Device: Delfilcon A

What is being measured

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

  1. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 1 after screening with habitual lenses

  2. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 3 after screening with habitual lenses

  3. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 5 after screening with habitual lenses

  4. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: 1-week follow up with habitual lens

  5. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 1 after dispense with delefilcon A

  6. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 3 after dispense with delefilcon A

  7. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 5 after dispense with delefilcon A

  8. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 7 after dispense with delefilcon A

  9. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 21 after dispense with delefilcon A

  10. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: Day 28 after dispense with delefilcon A

  11. Subjective Comfort at End of Day With Contact Lens Wear

    Participants rate their end of day comfort on a scale from 0 (worst) to 100 (best).

    Measured: 1-month follow up with delefilcon A

  12. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 1 after screening with habitual lenses

  13. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 3 after screening with habitual lenses

  14. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 5 after screening with habitual lenses

  15. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: 1-week follow up with habitual lens

  16. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 1 after dispense with delefilcon A

  17. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 3 after dispense with delefilcon A

  18. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 5 after dispense with delefilcon A

  19. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 7 after dispense with delefilcon A

  20. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 21 after dispense with delefilcon A

  21. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: Day 28 after dispense with delefilcon A

  22. Subjective Rating of End of Day Dryness With Contact Lens Wear

    Participants rate their end of day dryness on a scale from 0 (worst) to 100 (best).

    Measured: 1-month follow up with delefilcon A

  23. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 1 after screening with habitual lenses

  24. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 3 after screening with habitual lenses

  25. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 5 after screening with habitual lenses

  26. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: 1-week follow up with habitual lens

  27. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 1 after dispense with delefilcon A

  28. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 3 after dispense with delefilcon A

  29. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 5 after dispense with delefilcon A

  30. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 7 after dispense with delefilcon A

  31. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 21 after dispense with delefilcon A

  32. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: Day 28 after dispense with delefilcon A

  33. Average Lens Wear Time

    Average lens wear time is recorded

    Measured: 1-month follow up with delefilcon A

  34. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 1 after screening with habitual lenses

  35. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 3 after screening with habitual lenses

  36. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 5 after screening with habitual lenses

  37. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: 1-week follow up with habitual lens

  38. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 1 after dispense with delefilcon A

  39. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 3 after dispense with delefilcon A

  40. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 5 after dispense with delefilcon A

  41. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 7 after dispense with delefilcon A

  42. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 21 after dispense with delefilcon A

  43. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: Day 28 after dispense with delefilcon A

  44. Comfortable Lens Wear Time

    Comfortable lens wear time (Time of discomfort - Time of insertion)

    Measured: 1-month follow up with delefilcon A

Timeline

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

  1. First posted26 Sep 2019
  2. Study start23 Sep 2019
  3. Primary completion28 Jul 2022
  4. Study completion28 Jul 2022

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
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04105842
Sponsor's protocol ID
41251
Acronym
CORGI
Status last verified
Jun 2023
First submitted
13 Sep 2019
Last updated
25 Jul 2023
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 Delfilcon A in people with Dry Eye, run by University of Waterloo at 1 site in Canada.

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 13 inclusion and 12 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 25 Jul 2023. 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 Canada. 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 29 Jun 2023). 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?

Subjective Comfort at End of Day With Contact Lens Wear (time frame: Day 1 after screening with habitual lenses). The study lists 44 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 25 Jul 2023.

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