Evaluation of the Efficacy of Topical Ophthalmic Steroids in a Modified Conjunctival Allergen Challenge (CAC) Model
- Conditions
- Allergic Conjunctivitis
- Interventions
- Registration Number
- NCT00689078
- Lead Sponsor
- ORA, Inc.
- Brief Summary
To evaluate the efficacy of prednisolone acetate 1% ophthalmic suspension as compared to prednisolone acetate 0.12% ophthalmic suspension, loteprednol etabonate 0.2% ophthalmic suspension, and placebo (Tears Naturale® II) in the prevention of the signs and symptoms of allergic conjunctivitis. Comparisons will be made following 1 week of twice daily (BID) dosing and 1 week of four times daily (QID) dosing.
- Detailed Description
Structure:
Prospective, single center, randomized, double-masked, parallel treatment comparison study. Subjects will be randomized to one of the following treatment arms to be dosed bilaterally twice daily (BID) for the first dosing period and four times daily (QID) for the second dosing period:
1. Prednisolone Acetate 1% ophthalmic suspension
2. Prednisolone Acetate 0.12% ophthalmic suspension
3. Loteprednol Etabonate 0.2% ophthalmic suspension
4. Tears Naturale® II
Duration:
Approximately four (4) weeks
Controls:
Artificial Tears (Tears Naturale® II)
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 36
- At least 18 years of age & either sex, any race
- Willing and able to follow all instructions
- Positive history of ocular allergies
- Reproducible positive ocular allergic reaction induced by conjunctival allergen challenge
- Have planned surgery during trial period
- Female currently pregnant, planning a pregnancy or lactating
- Use of disallowed medications
- Have ocular infections, or ocular conditions that could affect study parameters
- Have moderate to severe dry eye
- Have used an investigational drug or device within 30 days of start of study
- Female that is currently pregnant, planning a pregnancy or lactating
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Pred acetate 1% Prednisolone Acetate 1% Prednisolone acetate 1.0% in each eye BID starting at Visit 2 (Day 0) for 6 days. Then in each eye QID starting the day after Visit 5 (Day 21) for 6 days. Pred acetate .12% Prednisolone Acetate 0.12% Prednisolone acetate 0.12% in each eye BID starting at Visit 2 (Day 0) for 6 days. Then in each eye QID starting the day after Visit 5 (Day 21) for 6 days. Lot Etab 0.2% Loteprednol Etabonate 0.2% Loteprednol Etabonate 0.2% in each eye BID starting at Visit 2 (Day 0) for 6 days. Then in each eye QID starting the day after Visit 5 (Day 21) for 6 days. Placebo Placebo Tears Naturale (Artificial Tears) in each eye BID starting at Visit 2 (Day 0) for 6 days. Then in each eye QID starting the day after Visit 5 (Day 21) for 6 days.
- Primary Outcome Measures
Name Time Method Ocular Itching at Baseline (Day 0) 3, 5, 7 minutes post-CAC A baseline CAC was performed on Day 0. Post-CAC ocular itching from Day 0 will be compared to post-CAC ocular itching, post-instillation, on Day 6, Day 7, Day 27 and Day 28. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.
Ocular Itching at Day 6 3, 5, 7 minutes post-CAC Post-CAC ocular itching from Day 0 will be compared to post-CAC ocular itching, post-instillation, on Day 6. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.
Ocular Itching at Day 7 3, 5, 7 minutes post-CAC Post-CAC ocular itching from Day 0 will be compared to post-CAC ocular itching, post-instillation, on Day 7. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.
Ocular Itching at Day 27 3, 5, 7 minutes post-CAC Post-CAC ocular itching from Day 0 will be compared to post-CAC ocular itching, post-instillation, on Day 27. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.
Ocular Itching at Day 28 3, 5, 7 minutes post-CAC Post-CAC ocular itching from Day 0 will be compared to post-CAC ocular itching, post-instillation, on Day 28. Ocular itching was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular itching score over both eyes was analyzed.
Ocular Redness at Baseline (Day 0) 7, 15, 20 minutes post-CAC A baseline CAC was performed on Day 0. Post-CAC ocular redness from Day 0 will be compared to post-CAC ocular redness, post-instillation, on Day 6, Day 7, Day 27 and Day 28. Ocular redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular redness score over both eyes was analyzed.
Ocular Redness at Day 6 7, 15, 20 minutes post-CAC Post-CAC ocular redness from Day 0 will be compared to post-CAC ocular redness, post-instillation, on Day 6. Ocular redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular redness score over both eyes was analyzed.
Ocular Redness at Day 7 7, 15, 20 minutes post-CAC Post-CAC ocular redness from Day 0 will be compared to post-CAC ocular redness, post-instillation, on Day 7. Ocular redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular redness score over both eyes was analyzed.
Ocular Redness at Day 27 7, 15, 20 minutes post-CAC Post-CAC ocular redness from Day 0 will be compared to post-CAC ocular redness, post-instillation, on Day 27. Ocular redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular redness score over both eyes was analyzed.
Ocular Redness at Day 28 7, 15, 20 minutes post-CAC Post-CAC ocular redness from Day 0 will be compared to post-CAC ocular redness, post-instillation, on Day 28. Ocular redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ocular redness score over both eyes was analyzed.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Ophthalmic Research Associates
🇺🇸Andover, Massachusetts, United States