This study aims to preliminarily evaluate the efficacy and safety of GB10 intravitreal (IVT) injection for the treatment of patients with neovascular age-related macular degeneration (nAMD). It consists of two parts, single-ascending-dose escalation (SAD) and multiple-ascending-dose escalation (MAD). In SAD, a single IVT of up to 6 doses will be administered to up to 36 treatment-naïve or previously treated patients with nAMD. If the lowest dose is considered safe without dose-limiting toxicity, escalation will proceed to the next higher dose level. At the end of SAD, the two doses that best balance efficacy and safety will be selected and entered into MAD. In MAD, a single IVT of 2 doses will be administered to 12 treatment-naïve or previously treated patients with nAMD, who will be enrolled across the low- to high-dose levels. After GB10 intervention, the participants will undergo tests to evaluate the PK/PD characteristics of GB10 and ocular and non-ocular safety.
This is an open-label, multicenter, dose-escalating study in patients with nAMD. The study consists of two parts: single-ascending-dose escalation (SAD) and multiple-ascending-dose escalation (MAD). It aims to evaluate the safety, tolerability, and PK/PD profile of single and multiple GB10 IVT injections in patients with nAMD, to investigate the efficacy of GB10, and to assess its immunogenicity. In SAD, a single IVT of 6 doses (per-eye administration, the same below) will be administered to up to 36 treatment-naïve or previously treated patients with neovascular age-related macular degeneration (nAMD). Participants will be enrolled sequentially, starting with the lowest dose and progressing to the highest. The first participant of each cohort will serve as the sentinel participant. If no dose-limiting toxicities related to GB10 treatment are observed among the participants, escalation will proceed to the next higher dose level after approval from the safety review committee. Two doses, best balancing efficacy and safety, will be determined in SAD and then entered into MAD. In MAD, a single IVT of 2 doses will be administered to 12 treatment-naïve or previously treated patients with nAMD, who will be enrolled across the low- to high-dose levels. After GB10 intervention, the participants will undergo tests to evaluate the PK/PD characteristics of GB10 and ocular and non-ocular safety.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
48
GB10 Intravitreal Injection with indicating dosage.
Beijing Tongren Hospital, Capital Medical University
Beijing, Beijing Municipality, China
The Affiliated Hospital of Guizhou Medical University
Guiyang, Guizhou, China
Henan Provincial Eye Hospital
Zhengzhou, Henan, China
Nanchang University Second Affiliated Hospital
Nanchang, Jiangxi, China
Zhejiang Provincial People's Hospital
Hangzhou, Zhejiang, China
Sir Run Run Shaw Hospital (SRRSH), affiliated with Zhejiang University School of Medicine
Hangzhou, Zhejiang, China
The incidence and severity of ocular adverse events
Time frame: From enrollment to the end of treatment at 12 weeks
The incidence and severity of non-ocular adverse events
Time frame: From enrollment to the end of treatment at 12 weeks
(SAD) The change in best corrected visual acuity (BCVA) from baseline after 4 weeks of treatment
Time frame: From enrollment to the end of treatment at 4 weeks
(MAD) The change in best corrected visual acuity (BCVA) from baseline after 12 weeks of treatment
Time frame: From enrollment to the end of treatment at 12 weeks
(SAD) Change in central retinal subfield thickness (CST) from baseline at 4 weeks of treatment
Time frame: From enrollment to the end of treatment at 4 weeks
(MAD) Change in central retinal subfield thickness (CST) from baseline at 12 weeks of treatment
Time frame: From enrollment to the end of treatment at 12 weeks
Time of receiving rescue therapy for nAMD activity
Time frame: From enrollment to the end of treatment at 12 weeks
Positive rate of anti-drug antibody and neutralizing antibody of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Area under the drug-time curve from 0 to time t of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Area under the curve at the time of 0-infinity of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Peak concentration of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Peak time of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Clearance rate of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
Half-life of GB10
Time frame: From enrollment to the end of treatment at 12 weeks
VEGF concentration
Time frame: From enrollment to the end of treatment at 12 weeks
Ang2 concentration
Time frame: From enrollment to the end of treatment at 12 weeks
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