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- W2618325173 abstract "RG7716 is a novel bispecific antibody that simultaneously binds vascular endothelial growth factor (VEGF) and another key angiogenic factor, angiopoietin 2. A phase I study of intravitreal RG7716 was conducted to evaluate single-dose and multiple-dose safety in patients with neovascular age-related macular degeneration (AMD).Open-label, single and multiple ascending-dose study.Twenty-four patients diagnosed with neovascular AMD with best-corrected visual acuity (BCVA) of 20/40 to 20/400 (Snellen equivalent) and refractory subfoveal choroidal neovascularization defined as leakage on fluorescein angiography or fluid on spectral-domain optical coherence tomography despite 3 or more intravitreal anti-VEGF treatments in the preceding 6 months.Single intravitreal doses of 0.5 mg, 1.5 mg, 3 mg, and 6 mg RG7716 were administered in stepwise dose-escalation groups, each with 3 patients. In the multiple-dose phase, 6 patients were enrolled and received 3 treatments each of 3 mg and 6 mg RG7716.Safety and tolerability, changes in baseline BCVA, and central subfield thickness (CST).There were no dose-limiting toxicities in either the single-dose or multiple-dose group. Treatment-emergent ocular adverse events were mild. There was a single withdrawal and 1 serious adverse event, both deemed to be unrelated to the study drug by principal investigators. In the combined single-dose groups and in the 6-mg multiple-dose group, BCVA increased from baseline to 28 days after the last dose administration by a median of 7 letters (range, 0-18 letters; n = 11) and 7.5 letters (range, 3-18 letters; n = 6), respectively. The corresponding median reduction from baseline in CST were 42 μm (range, -101 to 10 μm; n = 11) and -117 μm (range, -252 to -7 μm; n = 6), respectively. After multiple 3-mg RG7716 doses, no changes were observed in either BCVA (median, -0.5 letters; range, -9 to 8 letters; n = 6) or CST (median, -9 μm; range, -188 to -1 μm; n = 6).RG7716 was well tolerated and exhibited an overall favorable safety profile, with evidence of improvements in BCVA and anatomic parameters. These data support further evaluation of RG7716 in phase II trials." @default.
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- W2618325173 date "2017-11-01" @default.
- W2618325173 modified "2023-10-17" @default.
- W2618325173 title "Phase I Trial of Anti–Vascular Endothelial Growth Factor/Anti-angiopoietin 2 Bispecific Antibody RG7716 for Neovascular Age-Related Macular Degeneration" @default.
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- W2618325173 doi "https://doi.org/10.1016/j.oret.2017.03.003" @default.
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