LOS ANGELES, CA - July 2, 2026 (NEWMEDIAWIRE) - VERAXA Biotech (NASDAQ: VRXA) announced the initiation of cell line development for its lead BiTAC(R) T-cell engager (“BiTAC-TCE”) program through a collaboration with ATUM, which will apply its Leap-In Transposase(R) technology to generate stable clonal cell lines supporting IND/CTA-enabling activities and future clinical development. The collaboration follows encouraging preclinical data presented at the 2026 American Association for Cancer Research (“AACR”) Annual Meeting and is intended to support CMC development, including early process, analytical and formulation development, as well as the production of material for nonclinical studies.

VERAXA said its BiTAC-TCE platform is designed to improve tumor selectivity by splitting the T-cell engager into two complementary precursors that activate only when both bind separate tumor targets on the same cell. The company believes this conditional “AND”-gated approach could reduce off-tumor toxicity associated with conventional T-cell engagers while maintaining anti-cancer activity, potentially enabling higher dosing and a broader therapeutic window.

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About VERAXA Biotech AG

At VERAXA, we are building a premier engine for the discovery and development of next-generation antibody-based therapeutics, including bispecific T cell engagers, bispecific ADCs and other innovative formats. Powered by a suite of transformative technologies and guided by rigorous quality-by-design principles, we are rapidly advancing our pipeline of ADCs and proprietary BiTAC formats into clinical development and beyond. VERAXA was founded on scientific breakthroughs made at the European Molecular Biology Laboratory (EMBL), a world-renowned institution known for pioneering life science research and cutting-edge technology.

BiTAC(R) is a registered trademark of VERAXA Biotech GmbH.

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Forward Looking Statements

Certain statements in this article are forward-looking, as defined in the Private Securities Litigation Reform Act of 1995. These statements involve risks, uncertainties, and other factors that may cause actual results to differ materially from the information expressed or implied by these forward-looking statements and may not be indicative of future results. These forward-looking statements are subject to a number of risks and uncertainties, including, among others, various factors beyond management's control, including the risks set forth under the heading "Risk Factors" discussed under the caption "Item 1A. Risk Factors" in Part I of the Company's most recent Annual Report on Form 10-K or any updates discussed under the caption "Item 1A. Risk Factors" in Part II of the Company's Quarterly Reports on Form 10-Q and in the Company's other filings with the SEC. Undue reliance should not be placed on the forward-looking statements in this article in making an investment decision, which are based on information available to us on the date hereof. All parties undertake no duty to update this information unless required by law

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