The main objective of this pilot study is to evaluate the ability of 68Ga-NODAGA-RGD PET imaging to demonstrate, in patients with unilateral AMD, a molecular therapeutic response to intraocular antiangiogenic injections at the end of the first phase. induction (after 3 months of treatment).
To date, no functional imaging modality has been validated to assess the level angiogenic activity of choroidal neovascularization in AMD, while the therapeutic use of antiangiogenic agents is almost systematically in the form of intraocular injections. The therapeutic response is observed anatomically and functionally only after 6 months of treatment. Several arguments in the literature suggest that the therapeutic response occurs earlier at the molecular level, as soon as the induction phase is complete (after 3 months of treatment). The main objective of this pilot study is to evaluate the ability of 68Ga-NODAGA-RGD PET imaging to demonstrate, in patients with unilateral AMD, a molecular therapeutic response to intraocular antiangiogenic injections at the end of the first phase. induction (after 3 months of treatment).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
20
his study will consist of a monthly intra-ocular injection of antiangiogenic and a follow-up ophthalmological consultation with OCT and visual acuity score
APHM
Marseille, France
RECRUITINGMeasurement of the signal intensity ratios of the AMD eye / contralateral eye TEP (SUVmax) signal
Images from the 68Ga-NODAGA-RGD PET scan will be interpreted without results of other examinations and clinical history. Two experienced nuclear physicians unfamiliar with the results of the initial balance sheet examinations will complete a grid listing the quantification of the 68Ga-NODAGA-RGD (SUVmax) signal measured in each eye of each patient. The signal intensity ratios of the AMD eye / contralateral eye TEP (SUVmax) signal at M0 and M4 will be compared by a comparison test of paired averages.
Time frame: 7 months
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