Hanx Biopharmaceutical has filed for a Hong Kong Stock Exchange (HKEX) IPO, showcasing its oncology-focused pipeline including three clinical-stage candidates. The company's lead asset HX009, a PD-1/SIRPα bifunctional antibody fusion protein, has completed Phase I trials in Australia and China, with a Phase II combination study in triple-negative breast cancer (TNBC) approved to begin patient recruitment by late 2025. Other key candidates include multi-kinase inhibitor HX301 (Phase II for glioblastoma) and CTLA-4/SIRPα fusion protein HX044 (Phase I/IIa for solid tumours). The pre-revenue biotech reported losses of RMB 85.2 million in 2023 and RMB 116.9 million in 2024, primarily from R&D costs, and has raised three funding rounds since its 2016 inception.