Company: HURA
Filing Date: 2025-09-18
Form Type: S-1/A
Source: 0001193125-25-207395
Chunk: 88

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-09-18
Form: S-1/A
Chunk 88
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 on MDSCs. We are developing peptidomimetic or small molecule DOR-selective inhibitors to incorporate into our bi-specific, bi-functional APCs and ADCs, which we believe represents a paradigm shift from conventional APCs or ADCs that are currently in development or being marketed. Traditional ADCs are a class of drugs in which a monoclonal antibody is chemically linked to a cancer-fighting substance. The antibody carries the cancer fighting payload to the tumor cell improving the selectivity of the resulting anti-cancer activity. Next generation ADCs incorporate non-chemotherapeutic technologies to interfere with tumor cell cycle growth or to carry with the antibody a checkpoint inhibitor (so called “checkpoint ADCs”). In contrast, our APCs or ADCs do not target tumor associated receptor targets but rather target the Delta Opioid Receptor on MDSCs while carrying with them an immune effector to target a second receptor target like VISTA with a VISTA inhibiting antibody or other checkpoint inhibitor(s) producing novel bi-specific, bi-functional conjugates. These two functions are intended to work together with the goal of overcoming acquired resistance, preventing T cell exhaustion and allowing checkpoint inhibitors and cellular therapies to be safer and more effective while interfering with the tumor’s ability to invade and spread throughout the body.**

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#### Our Pipeline
Our pipeline focuses on acquiring and developing technologies designed to overcome tumor-intrinsic mechanisms underlying primary resistance to checkpoint inhibitors. We also focus on technologies to overcome acquired resistance to cancer immunotherapies related to the immune suppressing characteristics of the tumor microenvironment. We are leveraging our technology platforms to advance several diversified product candidates, including principally the following, each of which is described in more detail in this prospectus:

#### Our History and Team
We were originally incorporated in Nevada on June 24, 2009 under the name Berry Only Inc. On January 25, 2013, TuHURA entered into and closed an exchange agreement, with Del Mar Pharmaceuticals (BC) Ltd. (“Del Mar (BC)”), 0959454 B.C. Ltd. (“Callco”), and 0959456 B.C. Ltd. (“Exchangeco”) and the security holders of Del Mar (BC). Upon completion of the exchange agreement, Del Mar (BC) became a wholly-owned subsidiary of TuHURA. On August 19, 2020, TuHURA completed its merger with Adgero Biopharmaceuticals Holdings, Inc., a Delaware corporation (“Ad