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BioRay Filed IND Application for BRY812, a Novel Antibody Drug Conjugate Targeting LIV-1

Maggio 24, 2023

– SHANGHAI, May 24, 2023 /PRNewswire/ — BioRay Pharmaceutical Co., Ltd. (hereinafter referred to as BioRay) announced that the Investigational New Drug (IND) application for the clinical trial of its proprietary BRY812, a novel antibody-drug conjugate (ADC) targeting human LIV-1 for the treatment of advanced malignant tumors, has been accepted by the China National Medical Products Administration (NMPA) (Acceptance No. CXSL2300366).

LIV-1, also known as SLC39A6 or ZIP6, is a multi-pass transmembrane protein with zinc transporter and metalloproteinase activity. Its involvement in the homeostatic metabolism of zinc in cells and its role in promoting cell growth make it a key factor in tumor metastasis and the epithelial-mesenchymal transformation (EMT) process.

BRY812 is a LIV-1 targeting ADC developed on BioRay’s CysLink™ technology platform where highly stable conjugation is created through irreversible chemistry. By binding to LIV-1 on the surface of tumor cells, the ADC-target complex enters the tumor cell’s lysosome through endocytosis, releasing small molecule toxins that selectively kill tumor cells. In pre-clinical pharmacological studies, BRY812 demonstrated significant antitumor activity in various tumor models. Compared to other ADCs targeting the same pathway, BRY812 has higher stability in circulation by eliminating payload exchange, delivering toxins more selectively to tumor tissue, which resulted in a superior safety profile in pre-clinical toxicology studies. Globally, no LIV-1 targeting ADC has received marketing approval yet, and BioRay’s BRY812 is anticipated to be the second LIV-1 ADC that reaches the clinical stage.

Dr. Haibin Wang, CEO of BioRay, stated, “Since this January, we have obtained the IND approval of two innovative antibody drug candidates, BR108 and BRY805. We are committed to finding better therapeutic options for patients living with cancers and immune-mediated diseases. We will continue the research in exploring innovative targets, technologies and therapeutic modalities, including ADCs.

About BioRay

BioRay is a pioneer in China’s biopharmaceutical industry focusing on immune-mediated diseases. Its extensive autoimmune and oncology portfolio includes six marketed products and over 10 clinical-stage drug candidates. Operating a fully integrated platform with end-to-end capabilities across drug discovery, clinical development, manufacturing, and commercialization, BioRay has over 1,500 employees globally, with main sites in Taizhou, Hangzhou, Shanghai, and San Diego.

For more information about BioRay, please visit the company website:

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Direttore editoriale Davide Giacalone
Direttore responsabile Fulvio Giuliani
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