Bio-Thera Solutions Announces First Patient Dosed in Australia for BAT7104, a Bispecific Antibody Targeting PD-L1 and CD47 for the Treatment of Advanced Solid Tumors
09 May 2022
Clinical ResultImmunotherapyCollaborateAntibody
GUANGZHOU, China--(BUSINESS WIRE)-- Bio-Thera Solutions, Ltd. (SH: 688177), a commercial-stage pharmaceutical company, today announced that dosing has begun in a Phase 1 clinical study to evaluate the safety, tolerability, pharmacokinetics, and preliminary efficacy of BAT7104, a bispecific antibody that specifically blocks the interaction of human PD-L1 and CD47 with their corresponding receptors.
BAT7104 was designed to inhibit the PD-1/PD-L1 and CD47/SIRP-α pathways. By an “imbalanced” design with finely tuned binding affinity to CD47 and high affinity to PD-L1, BAT7104 is expected to avoid RBC depletion and block CD47 on CD47+/PD-L1+ tumors in a more selective and tumor-enriched manner. BAT7104 was shown to effectively inhibit both pathways in vitro and demonstrated synergistic activity in inducing complete tumor regression in vivo. In non-human primates (NHP) study, BAT7104 was well tolerated with no adverse effects, suggesting a favorable therapeutic index in future clinical development. “BAT7104 has demonstrated higher anti-tumor activity with better safety pro preclinical studies”. Commented Dr. Shengfeng Li, CEO, Bio-Thera Solutions. “As the first bispecific antibody of Bio-Thera, we are pleased to see BAT7104 enter clinical development in Australia, and we will continue bringing more innovative anti-tumor drugs to cancer patients.” Dr. Shengfeng Li continued.
The Phase 1, multi-center, open-label, dose-escalation clinical trial of BAT7104 is designed to assess the safety and tolerability of BAT7104. Key objectives of the study are to determine the maximum tolerated dose and recommended Phase 2 dose (RP2D), and to evaluate pharmacokinetics and preliminary efficacy in patients with advanced solid tumor. Another early stage Phase 1 clinical study evaluating BAT7104 is being conducted in China in patients with solid tumors and lymphoma. In addition, Bio-Thera Solutions is developing several additional innovative oncology assets directed at important IO targets, including PD-1, OX40, CTLA-4, and TIGIT, all in early stage clinical studies.
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