IDE034, a Bispecific ADC Licensed by Biocytogen to IDEAYA, Receives FDA IND Clearance

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BEIJING — Biocytogen Pharmaceuticals (Beijing) Co., Ltd. (Biocytogen, HKEX: 02315), announced that its spouse IDEAYA Biosciences, Inc. (Nasdaq: IDYA), a precision oncology company, has received the clearance of an investigational caller cause (IND) exertion with the U.S. Food and Drug Administration (FDA) for the initiation of a Phase 1 objective proceedings of IDE034, a imaginable first-in-class B7H3/PTK7 bispecific antibody-drug conjugate (ADC). IDEAYA expects to statesman diligent enrollment successful Q1 2026, initially evaluating patients with coagulated tumors known to explicit B7H3 and PTK7, including lung, colorectal, caput and neck, and ovarian/gynecological cancers.

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IDE034 is simply a bispecific B7H3/PTK7 TOP1 ADC, independently developed by Biocytogen and licensed to IDEAYA successful July 2024. The IND clearance marks an important milestone for this licensed program, supporting consequent objective improvement of IDE034, portion highlighting Biocytogen’s method capabilities successful bispecific ADC find and development.

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Dr. Yuelei Shen, Chairman and CEO of Biocytogen, said: “The IND clearance for IDE034 is an important milestone successful the improvement of this first-in-class TOP1 ADC licensed project, representing a important advancement for IDEAYA successful expanding its objective pipeline with bispecific, precision-targeted strategies. It besides validates our RenLite^® level and proprietary linker-payload technologies that alteration the find and optimization of bispecific ADCs. We look guardant to seeing IDE034 show objective imaginable crossed aggregate B7H3/PTK7 co-expressing coagulated tumors, offering caller therapeutic options for patients.”

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Preclinical studies person shown that IDE034 monotherapy induces heavy and durable tumor regressions in aggregate B7H3/PTK7-positive tumor models, demonstrating beardown anti-tumor activity. In addition, IDEAYA plans to research operation strategies with its PARG inhibitor IDE161 to heighten the durability of effect and intends to contiguous further preclinical information supporting the operation rationale astatine a large aesculapian league successful H1 2026. B7H3 and PTK7 are co-expressed successful lung, colorectal, and caput and cervix cancers astatine astir 30%, 46%, and 27%, respectively, indicating the wide objective imaginable of IDE034.

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Looking ahead, Biocytogen volition proceed to supply high-quality root antibodies done RenBiologics to enactment the objective translation of licensed projects and actively research further early-stage assets for outer licensing opportunities.

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About Biocytogen

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Biocytogen (HKEX: 02315) is simply a planetary biotechnology institution that drives the probe and improvement of caller antibody-based drugs with innovative technologies. Founded connected cistron editing technology, Biocytogen leverages genetically engineered proprietary RenMice^® platforms for afloat quality monoclonal/bispecific/multispecific antibody discovery, bispecific antibody-drug conjugate discovery, nanobody find and TCR mimic antibody discovery, and has established a sub-brand, RenBiologics™, to research planetary partnerships for an off-the-shelf room of >1,000,000 afloat quality antibody sequences against implicit 1000 targets for worldwide collaboration. As of June 30, 2025, astir 280 therapeutic antibody and aggregate objective plus co-development/out-licensing/transfer agreements and implicit 50 target-nominated RenMice^® licensing projects person been established astir the globe, including respective partnerships with multinational pharmaceutical companies (MNCs). Biocytogen pioneered the procreation of cause people knock-in humanized models for preclinical research, and presently provides a fewer 1000 off-the-shelf carnal and compartment models nether the company’s sub-brand, BioMice™, on with preclinical pharmacology and gene-editing services for clients worldwide. Headquartered successful Beijing, Biocytogen has branches successful China (Haimen Jiangsu, Shanghai), USA (Boston, San Francisco, San Diego), and Germany (Heidelberg). For much information, delight sojourn https://biocytogen.com.

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