Safety Study of Avastin Used as Adjunctive Therapy in Pterygium Surgery
| Status: | Completed |
|---|---|
| Conditions: | Ocular |
| Therapuetic Areas: | Ophthalmology |
| Healthy: | No |
| Age Range: | 18 - 80 |
| Updated: | 4/21/2016 |
| Start Date: | October 2010 |
| End Date: | July 2015 |
A Pilot Study to Assess Safety and Efficacy of Intraoperative Topical Mitomycin C and Bevacizumab (Avastin) Applied to Bare Sclera in Pterygium Surgery
This study will evaluate the efficacy and safety of the use of bevacizumab (Avastin) as an
adjunctive medication during pterygium surgery in preventing pterygium recurrence. A
pterygium is a white fleshy growth on the surface of the eye, which can be removed
surgically. However, after surgical removal, pterygia can recur. One way of minimizing
recurrence is by applying a medication called mitomycin C to the surface of the eye during
pterygium surgery. However, mitomycin is associated with certain side effects, such as
thinning of the eye wall and poor wound healing. Bevacizumab has a different mechanism of
action and there is some evidence that it may be useful in preventing pterygium recurrence.
In this study, the safety and efficacy of adjunctive intraoperative use of bevacizumab and
mitomycin C for preventing pterygium recurrence will be directly compared.
adjunctive medication during pterygium surgery in preventing pterygium recurrence. A
pterygium is a white fleshy growth on the surface of the eye, which can be removed
surgically. However, after surgical removal, pterygia can recur. One way of minimizing
recurrence is by applying a medication called mitomycin C to the surface of the eye during
pterygium surgery. However, mitomycin is associated with certain side effects, such as
thinning of the eye wall and poor wound healing. Bevacizumab has a different mechanism of
action and there is some evidence that it may be useful in preventing pterygium recurrence.
In this study, the safety and efficacy of adjunctive intraoperative use of bevacizumab and
mitomycin C for preventing pterygium recurrence will be directly compared.
Inclusion Criteria:
- Age 18 to 80
- Presence of primary or recurrent pterygium
- Pterygium grows greater than 2mm onto cornea from limbus (using slit lamp light beam
to measure size)
- Pterygium is inducing astigmatism greater than 1 diopter compared to the fellow eye
(to be determined by automated keratometry and manifest refraction)
- The pterygium is symptomatic (irritation, inflammation, strabismus, decreased visual
acuity)
Exclusion Criteria:
- Age less than 18
- Age greater than 80
- Any systemic rheumatologic or autoimmune disorder (autoimmune hepatitis, bullous
pemphigoid, celiac disease, Crohn's disease, dermatomyositis, Graves' disease,
Hashimoto's thyroiditis, systemic lupus erythematosus, mixed connective tissue
disease, pemphigus vulgaris, psoriasis, polymyositis, rheumatoid arthritis,
scleroderma, Sjogren's disease, ulcerative colitis, vasculitis, Wegener's
granulomatosus)
- Women who are potentially child-bearing (no possibility of pregnancy for at least one
month after surgery)
- Any use within the past two months of topical eye drops other than artificial tears
in the study eye
- Any previous intravitreal injections of any medication in the study eye
- Any previous use of systemic, topical, or intravitreal bevacizumab in either eye
- Any history of subconjunctival injections in the study eye within the past year
- Any history of scleral or corneal laceration in the study eye
- Ocular surgery within the past 3 months in the study eye
- History of scleral buckle placement in the study eye
- History of glaucoma
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