Yisheng Biopharma Co., Ltd. (“Yisheng Biopharma”), a biopharmaceutical company focusing on research, development, manufacturing, sales and marketing of immuno-oncology products and vaccines, today announced that its first-in-class immuno-oncology product candidate, YS-ON-001, demonstrated strong anti-tumor efficacy as a standalone therapy and synergistic effect when combined with antibody blocking programmed death receptor-1 (PD-1) in multiple animal models
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