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TScan Therapeutics Announces First Patient Dosed in Phase 1 Clinical Trial Evaluating TCR-T Therapy for the Treatment of Solid Tumors
Patient dosed with TSC-203-A0201 targeting cancer-associated antigen PRAME On-track to report initial data from the solid tumor clinical trial in 2024

About this update from Tscan Therapeutics, Inc.
[{"type":"text","content":"Patient dosed with TSC-203-A0201 targeting cancer-associated antigen PRAME On-track to report initial data from the solid tumor clinical trial in 2024 WALTHAM, Mass., May 09, 2024 (GLOBE NEWSWIRE) -- TScan Therapeutics, Inc. (Nasdaq: TCRX), a clinical-stage biopharmaceutical company focused on the development of T cell receptor (TCR)-engineered T cell (TCR-T) therapies for the treatment of patients with cancer, today announced that the first patient has been dosed in the Company’s Phase 1 trial evaluating TCR-T therapy for the treatment of solid tumors. The patient, diagnosed with metastatic melanoma, was dosed with TSC-203-A0201 targeting the cancer-associated antigen PReferentially expressed Antigen in MElanoma (PRAME). “Dosing the first patient in our solid tumor program is a significant milestone for us, as we are now well underway with both of our core clinical programs,” said Gavin MacBeath, Ph.D., Chief Executive Officer. “There is a lot of enthusiasm for this trial, and we are already manufacturing TCR-T products for three more patients. We have six TCR-Ts cleared under existing IND applications for patient dosing in this program, and we plan to file additional IND applications to further expand the ImmunoBank across diverse targets and HLA types to broaden the reach of multiplex TCR-T therapy for solid tumors.” “Solid tumors are notoriously heterogeneous, and we believe that an effective way to treat solid tumors is through a multi-pronged approach,” added Chrystal U. Louis, M.D., Chief Medical Officer. “Customized multiplex TCR-T therapy is designed to achieve durable responses by overcoming tumor heterogeneity and resistance that develops from either target or HLA loss. We look forward to sharing initial data from our solid tumor trial later this year.” About TScan’s Solid Tumor Program TScan’s Phase 1 clinical trial is designed to assess the safety and feasibility of T-Plex, autologous customized TCR-T therapy targeting multiple peptide/human leukocyte antigens (HLA) targets in participants with antigen-positive, locally advanced, unresectable or metastatic solid tumors. Multiplex TCR-T therapy has the potential to overcome tumor heterogeneity and HLA loss of heterozygosity, commonly observed resistance mechanisms in solid tumors. First generation TCR-T therapies, targeting single antigens, have shown encouraging res...