Non-dispensing Study to Check Prescription Equivalence of Two Daily Disposable Toric Contact Lens Types

Johnson & Johnson (J&J)

Status: Completed

Conditions: Astigmatism

Treatments: Device: etafilcon A toric contact lens with new wetting agent; Device: etafilcon A toric contact lens

Study type: Interventional

Funder types: Industry

Identifiers

NCT01120782

CR-1476AI

Details and patient eligibility

About

The purpose of this study is to determine whether the prescription determined for a new daily disposable toric contact lens will be a good match to a prescription determined for an existing brand of lens.

Enrollment: 45 patients

Sex: All

Ages: 18 to 40 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. The subject must be between 18 and 40 years old.
2. The subject must have normal eyes.
3. The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
4. The subject must read and sign the STATEMENT OF INFORMED CONSENT and be provided a copy of the form.
5. The subject must have a subjective distance spectacle prescription in the range of -1.75 to -5.00 DS in each eye.
6. The subject must manifest -1.25 to -2.00 D of refractive astigmatism in each eye.
7. The subject's refractive cylinder axis must be 180 +/- 30 in each eye.
8. The subject must be an adapted wearer of soft toric contact lenses in both eyes.
9. The subject's best visual acuity (BVA) must be better than or equal to 20/25 in each eye.
10. Subjects must already possess a wearable pair of spectacles. -

Exclusion criteria

1. Ocular or systemic allergies or disease that may interfere with contact lens wear.
2. Systemic disease or autoimmune disease or use of medication, which may interfere with contact lens wear.
3. Clinically significant corneal edema, corneal vascularization, corneal staining or any other abnormality of the cornea, which may contraindicate contact lens wear.
4. Clinically significant tarsal abnormalities that might interfere with contact lens wear.
5. Any ocular infection.
6. Any corneal distortion resulting from previous hard or rigid gas permeable contact lens wear.
7. Pregnancy or lactation
8. Any infectious disease (e.g., hepatitis, tuberculosis) or an immunosuppressive disease (e.g., HIV).
9. Diabetes
10. Strabismus -

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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45 participants in 2 patient groups

etafilcon A toric new lens/etafilcon A toric lens

Active Comparator group

Description:

The lens worn first is a new etafilcon A toric contact lens and the lens worn second is a marketed etafilcon A toric contact lens. Each lens worn for a maximum of 15 minutes bilaterally.

Treatment:

Device: etafilcon A toric contact lens with new wetting agent

Device: etafilcon A toric contact lens

etafilcon A toric lens/etafilcon A toric new lens

Active Comparator group

Description:

The lens worn first is a marketed etafilcon A toric contact lens and the lens worn second is a new etafilcon A toric contact lens. Each lens worn for a maximum of 15 minutes bilaterally.

Treatment:

Device: etafilcon A toric contact lens with new wetting agent

Device: etafilcon A toric contact lens