Ketotifen/Naphazoline Ophthalmic Solution in the Conjunctival Allergen Challenge Model of Allergic Conjunctivitis.

Allergic Conjunctivitis Clinical Trial

Official title:

A Multi-Center, Double-Masked, Randomized, Vehicle and Active Controlled Evaluation of the Onset and Duration of Action of KetoNaph Ophthalmic Solution in the Conjunctival Allergen Challenge Model of Acute Allergic Conjunctivitis

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00769886
• Other study ID #: 571
• Status: Completed
• Phase: Phase 3
• Start date: October 2008
• Est. completion date: June 2009

Study information

• Verified date: October 2020
• Source: Bausch & Lomb Incorporated
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to establish the safety and efficacy of ketotifen/naphazoline ophthalmic solution compared to vehicle and its individual components in alleviating the signs and symptoms of conjunctival allergen challenge (CAC)-induced allergic conjunctivitis.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 144
• Est. completion date: June 2009
• Est. primary completion date: December 2008
• Accepts healthy volunteers: No
• Gender: All
• Age group: 6 Years and older

Eligibility

Inclusion Criteria:

• Positive history of ocular allergies and positive skin test reaction to cat hair, cat dander, grasses, ragweed, and/or trees within the past 24 months.

• Calculated best-corrected visual acuity of 0.7 logMAR or better in each eye as measured using the ETDRS chart.

• Positive bilateral conjunctival allergen challenge(CAC)reaction within 10 minutes of instillation of the last titration of allergen at visit 1.

• Positive bilateral CAC reaction in at least 2 out of 3 time points at visit 2.

Exclusion Criteria:

• Known contraindications or sensitivities to the study medication or its components.

• Any ocular condition that, in the opinion of the investigator, could affect the subjects safety or trial parameters.

• Use of disallowed medications during the period indicated prior to study enrollment or during the study.

Related Conditions & MeSH terms

• Allergic Conjunctivitis
• Conjunctivitis
• Conjunctivitis, Allergic

Intervention

Drug:
• Ketotifen/naphazoline
One drop of ketotifen/naphazoline in study eye at visit 3 and visit 4.
• Ketotifen
One drop of Ketotifen in study eye at visit 3 and visit 4.
• Naphazoline
One drop of naphazoline in study eye at vist 3 and visit 4.
• Vehicle
One drop of vehicle in study eye at visit 3 and visit 4.

Locations

Country	Name	City	State
United States	Ophthalmic Research Consultants, Inc.	North Andover	Massachusetts

Sponsors (1)

Lead Sponsor	Collaborator
Bausch & Lomb Incorporated

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Ocular Itching	Ocular itching was evaluated by the participant at 3, 5, and 7 minutes post challenge. Assessments were made using a 0-4 numerical analog scale, allowing 0.5-unit increments (but disallowing 0.25-unit increments), where: 0.0 = None and 4.0 = Incapacitating itch with an irresistible urge to rub.	3, 5, and 7 minutes post challenge at 14 days
Primary	Conjunctival Hyperemia	Conjunctival hyperemia was evaluated by the Investigator at 7, 15, and 20 minutes post challenge. Assessments were completed using a 0-4 numerical analog scale, allowing 0.5-unit increments, where: 0.0 = None and 4.0 = Extremely severe.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Ciliary Redness	Ciliary hyperemia (redness) was evaluated by the Investigator at 7, 15, and 20 minutes post challenge. Assessments were made using a 0-4 scale, allowing 0.5- unit increments, with 0.0 = None and 4.0 = Extremely severe.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Episcleral Redness	Episcleral hyperemia (redness) was evaluated by the Investigator at 7, 15, and 20 minutes post challenge. Assessments were made using a 0-4 scale, allowing 0.5- unit increments, with 0.0 = None and 4.0 = Extremely severe.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Chemosis	Chemosis was evaluated by the Investigator at 7, 15, and 20 minutes post challenge on a 0-4 numerical analog scale, allowing 0.5-unit increments, where: 0.0 = None and 4.0 = Extremely severe.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Eyelid Swelling	Lid swelling was evaluated by the subject at 7, 15, and 20 minutes post challenge on a 0- 3 numerical analog scale, with 0.5-unit increments disallowed, where: 0.0 = None and 3.0 = Severe.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Percentage of Eyes With Tearing	Tearing was evaluated by the subject at 7, 15, and 20 minutes post challenge (absent or present). Tearing was recorded as either absent or present.	7, 15, and 20 minutes post challenge at 14 days
Secondary	Percentage of Eyes With Ocular Mucus Drainage	Ocular mucous discharge was evaluated by the Investigator at 7, 15, and 20 minutes post challenge. Mucous discharged was recorded as either absent or present.	7, 15, and 20 minutes post challenge at 14 days