On April 28, 2022 Transcenta Holding Limited ("Transcenta") (HKEX: 06628), a clinical stage biopharmaceutical company with fully-integrated capabilities in discovery, research, development and manufacturing of antibody-based therapeutics, reported that the abstracts of TST001 and MSB0254 have been accepted by the 2022 annual meeting of American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) ("2022 ASCO (Free ASCO Whitepaper) Annual Meeting") (Press release, Transcenta, APR 28, 2022, View Source [SID1234613184]). The abstracts are named "A Phase I Study of TST001, a High Affinity Humanized Anti-CLDN18.2 Monoclonal Antibody, in Combination with Capecitabine and Oxaliplatin (CAPOX) as a First Line Treatment of Advanced G/GEJ Cancer" and "A Phase I Study to Evaluate the Safety, Tolerability and Pharmacokinetics of MSB0254 in Chinese Solid Tumor Patients" respectively.
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The ASCO (Free ASCO Whitepaper) Annual Meeting showcases the most cutting-edge research in clinical oncology and state-of-the-art advanced cancer therapies and is the world’s most influential and prominent scientific gathering of the clinical oncology community. This year’s ASCO (Free ASCO Whitepaper) Annual Meeting will take place both online and in-person (McCormick Place; Chicago, IL) on June 3–7, 2022.
TST001 (Claudin18.2)
Abstract Number: 4062
Session Date and Time: June 4, 2022, 8:00 AM-11:00 AM CDT
Title: A Phase I Study of TST001, a High Affinity Humanized Anti-CLDN18.2 Monoclonal Antibody, in Combination with Capecitabine and Oxaliplatin (CAPOX) as a First Line Treatment of Advanced G/GEJ Cancer
First author: Professor Jifang Gong, Peking University Cancer Hospital and Research Institute
Presentation Format: Poster
MSB0254 (VEGFR2)
Abstract Number: 3023
Session Date and Time: June 5, 2022, 8:00 AM-11:00 AM CDT
Title: A Phase I Study to Evaluate the Safety, Tolerability and Pharmacokinetics of MSB0254 in Chinese Solid Tumor Patients
First author: Professor Tianshu Liu, Zhongshan Hospital, Fudan University
Presentation Format: Poster
About TST001
TST001 is a high affinity humanized anti-Claudin18.2 monoclonal antibody with enhanced antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) activities and potent anti-tumor activities in tumor xenograft models. TST001 is the second Claudin18.2 targeting antibody therapeutic candidate being developed globally. TST001 is generated using Transcenta’s Immune Tolerance Breaking Technology (IMTB) platform. TST001 kills Claudin18.2 expressing tumor cells by mechanisms of antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC). Leveraging advanced bioprocessing technology, the fucose content of TST001 was significantly reduced during the production, which further enhanced NK cells mediated ADCC activity of TST001. Clinical trials for TST001 are ongoing in China and US (NCT04396821, NCT04495296/CTR20201281). TST001 was granted Orphan Drug Designation in the US by FDA for the treatment of patients with gastric cancer or gastroesophageal junction (GC/GEJ).
About MSB0254
MSB0254 is a high affinity humanized anti-VEGFR-2 mAb, with an anti-tumor mechanism of action by inhibiting tumor angiogenesis. MSB0254 has been generated using Transcenta’s in-house antibody discovery platform. VEGFR-2 is overexpressed in neovascular tumor endothelial cells in many tumors in comparison to normal endothelial cells. Vascular permeability, survival and migration of the vascular endothelial cells are controlled by the VEGFR-2 pathway. VEGFR-2 inhibitors has been shown to be able to inhibit tumor-induced angiogenesis and effectively block tumor growth, and thus may have a potential therapeutic role in multiple tumor types.