The purpose of this study is to evaluate the onset and duration of action of AC-170 0.24% compared to vehicle in the prevention of the signs and symptoms of allergic conjunctivitis in the conjunctival allergen challenge (CAC) model.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
100
1 drop in each eye at 2 separate times during a 14 day period
1 drop in each eye at 2 separate times during a 14 day period
Andover Eye Associates
Andover, Massachusetts, United States
Ocular Itching at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. 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.
Time frame: 3, 5, 7 minutes post-CAC
Ocular Itching at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. 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.
Time frame: 3, 5, 7 minutes post-CAC
Conjunctival Redness at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Conjunctival Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of conjunctival redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Conjunctival Redness at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Conjunctival Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of conjunctival redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Ciliary Redness at Duration of Action (8 Hours + 30 Minutes)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Ciliary Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ciliary redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
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Ciliary Redness at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Ciliary Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of ciliary redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Episcleral Redness at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Episcleral Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of episcleral redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Episcleral Redness at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Episcleral Redness was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of episcleral redness score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Chemosis at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Chemosis was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of chemosis score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Chemosis at Onset of Action (15 Minutes)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Chemosis was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of chemosis score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Eyelid Swelling at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Eyelid swelling was assessed by the patient on a 0-3 scale (0=none to 3=severe). Average of eyelid swelling score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Eyelid Swelling at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Eyelid swelling was assessed by the patient on a 0-3 scale (0=none to 3=severe). Average of eyelid swelling score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Tearing at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Tearing was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of tearing score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Tearing at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Tearing was assessed by the patient on a 0-4 scale (0=none to 4=severe). Average of tearing score over both eyes was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Rhinorrhea at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Rhinorrhea was assessed by the patient on a 0-4 scale (0=none to 4=severe). Rhinorrhea score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Rhinorrhea at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Rhinorrhea was assessed by the patient on a 0-4 scale (0=none to 4=severe). Rhinorrhea score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Pruritus at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Nasal Pruritus was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Pruritus score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Pruritus at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Nasal Pruritus was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Pruritus score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Ear or Palate Pruritus at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Ear or Palate Pruritus was assessed by the patient on a single 0-4 scale (0=none to 4=severe). Ear or Palate Pruritus score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Ear or Palate Pruritus at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Ear or Palate Pruritus was assessed by the patient on a single 0-4 scale (0=none to 4=severe). Ear or Palate Pruritus score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Congestion at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. Nasal Congestion was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Congestion score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Congestion at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. Nasal Congestion was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Congestion score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Composite Score at Duration of Action (8 Hours + 30 Minutes Post-dose)
A treatment efficacy CAC was performed 8 hours + 30 minutes after drop instillation. For Nasal Composite Score the Total Composite Score ranges from 0 to 16, higher scores represent greater severity. Patients needed to have at least one of the nasal symptoms present (Rhinorrhea + Nasal Pruritus + Ear or Palate Pruritus + Nasal Congestion) each symptom was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Composite score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Nasal Composite Score at Onset of Action (15 Minutes Post-dose)
A treatment efficacy CAC was performed 15 minutes after drop instillation. For Nasal Composite Score the Total Composite Score ranges from 0 to 16, higher scores represent greater severity. Patients needed to have at least one of the nasal symptoms present (Rhinorrhea + Nasal Pruritus + Ear or Palate Pruritus + Nasal Congestion) each symptom was assessed by the patient on a 0-4 scale (0=none to 4=severe). Nasal Composite score for each time point was analyzed.
Time frame: 7, 15, 20 minutes post-CAC
Tolerability of Study Medication at Visit 3A
Tolerability was assessed upon instillation of study medication, at 1 minute and 2 minutes post study medication instillation. Drop comfort was assessed using a 0-to 10 scale where 0=very comfortable and 10=very uncomfortable.
Time frame: upon instillation, 1 minute and 2 minutes post instillation