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The investigators hypothesize that it is safe and effective to treat patients with choroidal neovascularisation (abnormal blood vessels growing under the retina) secondary to uveitis with Conbercept.
This will be a randomized, placebo-controlled trial. 20 patients will receive three injections of Conbercept into the affected eye (and repeated injections if required), and 20 patients will receive three sham injections requiring no needle stick, but making the patient unaware of whether or not he received active treatment.
Outcome of the two treatment groups will be compared after one year.
Primary Outcome Measures: Mean change from baseline in best corrected visual acuity [ Time Frame: 12 months ]
Secondary Outcome Measures: Mean change from baseline in retinal thickness [ Time Frame: 12 months ]
Mean number of Conbercept injections required over 12 months [ Time Frame: 12 months ]
Ocular and systemic adverse events [ Time Frame: 12 months ]
Intervention Details: Drug: Conbercept
20 patients will receive an intravitreal injections of conbercept 0.5 mg at baseline (visit 1; month 0) then a subsequent intravitreal injection at month 1 (visit 2) and month 2 (Visit 3). Patients will be reviewed every month thereafter for 12 months at which time it will be determined whether the patient requires retreatment with conbercept 0.5 mg based on measurements of visual acuity, Optical coherence tomography (OCT) findings, FFA and clinical appearance.
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Not yet recruiting
Chongqing Medical University
Published on BioPortfolio: 2016-10-18T02:08:21-0400
The purpose of this study is to evaluate the efficacy of intravitreal anti-vascular endothelial growth factor (anti-VEGF) therapy as primary treatment for ICNV.
To explore efficacy and safety of 0.5 mg conbercept ophthalmic injection for long-term treatment of polypoid choroidal vasculopathy (PCV) subjects.
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To compare the initial versus delayed verteporfin photodynamic therapy (PDT) in combination with conbercept in patients with symptomatic polypoidal choroidal vasculopathy (PCV).
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A pathological process consisting of the formation of new blood vessels in the CHOROID.
Excessive axial myopia associated with complications (especially posterior staphyloma and CHOROIDAL NEOVASCULARIZATION) that can lead to BLINDNESS.
A form of RETINAL DEGENERATION in which abnormal CHOROIDAL NEOVASCULARIZATION occurs under the RETINA and MACULA LUTEA, causing bleeding and leaking of fluid. This leads to bulging and or lifting of the macula and the distortion or destruction of central vision.
A TIE receptor tyrosine kinase that is found almost exclusively on ENDOTHELIAL CELLS. It is required for both normal embryonic vascular development (NEOVASCULARIZATION, PHYSIOLOGIC) and tumor angiogenesis (NEOVASCULARIZATION, PATHOLOGIC).
New blood vessels originating from the corneal veins and extending from the limbus into the adjacent CORNEAL STROMA. Neovascularization in the superficial and/or deep corneal stroma is a sequel to numerous inflammatory diseases of the ocular anterior segment, such as TRACHOMA, viral interstitial KERATITIS, microbial KERATOCONJUNCTIVITIS, and the immune response elicited by CORNEAL TRANSPLANTATION.
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...