A Study of the Response to AG-86893 in Patients With Pterygium Hyperemia

Phase 2

Completed

Interventions: Drug: 0.1% AG-86893 Eye Drops
Drug: Vehicle Eye Drops
Drug: 0.3% AG-86893 Eye Drops

Brief Summary: A pterygium is a wing-shaped, benign tissue growth which forms on the surface of the conjunctiva and grows towards the cornea. It can eventually lead to vision impairment. The precise cause of pterygium formation is unknown but new blood vessel growth and fibroblastic structures are characteristics of the disease. AG-86893 is an eye drop being developed to treat hyperemia (redness) and growth of the pterygium.

Hypothesis

1. AG-86893 dosed three times daily for 28 consecutive days has an acceptable safety profile as measured by the incidence and severity of adverse events (AEs) compared with vehicle

2. At least 1 concentration of AG-86893 is effective, as measured by the mean change from baseline in conjunctival hyperemia (redness), compared with vehicle

Recruitment & Eligibility

Inclusion Criteria

Good health with no clinically significant findings based on the medical history, electrocardiogram, vital signs, blood chemistry, hematology, and urinalysis findings, as determined by the investigator
Females of childbearing potential must have a negative pregnancy test at baseline and must be on established, adequate contraception and males must use condoms if their partner is of childbearing potential and their female partner should also use an additional effective means of contraception, or they must agree to abstain from sexual intercourse with a female partner for the duration of the study; contraception should be continued for 3 months after the last dose.
Presence of pterygium with associated conjunctival hyperemia (redness) of grade ≥2 as assessed by a central reading center.

Exclusion Criteria

History or presence of any ocular diseases other than pterygium or its sequelae (after-effects), including neoplasia (uncontrolled overgrowth)
Diagnosis of ocular hypertension or glaucoma requiring use of intraocular pressure-lowering medication
Use of contact lenses during the study in the study eye
History or evidence of ocular surgeries in the study eye at any time
History of liver dysfunction or current abnormal liver enzymes
Pregnancy, plans for pregnancy, or breastfeeding during the study

Arm && Interventions

Group	Intervention	Description
0.1% AG-86893 Eye Drops	0.1% AG-86893 Eye Drops	One drop, three times daily to the study eye for 28 days
Vehicle Eye Drops	Vehicle Eye Drops	One drop, three times daily to the study eye for 28 days
0.3% AG-86893 Eye Drops	0.3% AG-86893 Eye Drops	One drop, three times daily to the study eye for 28 days

Primary Outcome Measures

Name	Time	Method
Change From Baseline in Overall Conjunctival Hyperemia Score	Baseline and Day 28	Assessed by digital ocular photography; each quadrant of the eye (superior, inferior, nasal, temporal) will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. The overall conjunctival score is the average of the four quadrants. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

Secondary Outcome Measures

Name	Time	Method
Change From Baseline in Conjunctival Hyperemia Score in the Quadrant With the Pterygium	Baseline and Day 28	Assessed by digital ocular photography; the quadrant with the pterygium will be scored using a 5-point scale (0 = none, 1 = mild, 2 = moderate, 3 = severe, and 4 = very severe) and graded by a reading center. Assessments are made by subtracting the score at Baseline from the score on Day 28. An increase in value indicates worsening of hyperemia, while a decrease indicates improvement.

Locations (6): Essendon Eye Clinic
🇦🇺
Essendon, Victoria, Australia
The Geelong Eye Centre
🇦🇺
Waurn Ponds, Victoria, Australia
H2Vision Centre
🇦🇺
Sippy Downs, Queensland, Australia
Bendigo Eye Clinic
🇦🇺
Bendigo, Victoria, Australia
Lions Eye Institute
🇦🇺
Nedlands, Western Australia, Australia
M.T. Coroneo Pty Ltd
🇦🇺
Randwick, New South Wales, Australia