The purpose of this study is to demonstrate a statistically significant improvement of visual acuity after treatment using either Lucentis® or Triamcinolone® compared to no treatment, in patients with radiation retinopathy.
Approximately 30-40% of patients develop a deterioration of visual acuity within 5 years after treatment of uveal melanoma using radiation therapy and TTT due to radiation retinopathy (Shields 2002, Bartlema 2003). By administration of either Lucentis® or Triamcinolone® we hope to treat complications of radiation therapy, by demonstrating a statistically significant improvement in visual acuity and a reduced amount of macular edema and vascular leakage. Additionally, we hope to obtain a better understanding of the pathophysiologic processes involved, by demonstrating a possible relation between high levels of angiogenic factors (VEGF) in the anterior chamber fluid, and radiation retinopathy. In conclusion, we hope to provide evidence for a new therapy in patients with retinopathy, due to radiation in uveal melanoma. There is no scientifically proven treatment available at this time.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
220
three initial monthly intra vitreal injections with 0.5 mg ranibizumab
at baseline one intra vitreal injection with 4.0 mg triamcinolone acetonide
at baseline one sham-injection
To demonstrate a statistically significant superiority of intravitreal ranibizumab (0.5mg) or triamcinolone acetonide (4.0mg) to no treatment, in the mean change from baseline in best corrected visual acuity (BCVA)
Time frame: one year
To evaluate the time course of BCVA changes on ranibizumab (0.5 mg) and triamcinolone acetonide (4.0mg) relative to no treatment.
Time frame: one year
To evaluate the effects of ranibizumab (0.5 mg) and triamcinolone acetonide (4.0mg) on central retinal thickness, severity of retinopathy and other anatomical changes relative to no treatment
Time frame: one year
To demonstrate a possible relation between decreasing levels of angiogenic factors (such as VEGF) in the anterior chamber fluid and a good response to treatment with ranibizumab or triamcinolone acetonide, and radiation retinopathy
Time frame: 4 weeks
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