B7-H3 Inhibitors in Oncology Clinical Trials: A Review.

J Immunother Precis Oncol

Early Phase Clinical Trials Unit, Sarah Cannon Research Institute at HealthONE, Denver, CO, USA.

Published: February 2024

B7-H3 is a transmembrane receptor highly prevalent on malignant cells and plays an important role in adaptive immunity that is not fully elucidated. Targeted B7-H3 inhibitors, including antibody-drug conjugates, radioimmunotherapy, and monoclonal antibodies, are a new class of antineoplastic agents showing promising preliminary clinical efficacy, observed with several of these agents against multiple tumor types. Particularly promising treatments are enoblituzumab for prostate cancer, I-omburtamab for central nervous system malignancies, and HS-20093 for small-cell lung cancer but further studies are warranted. There are clinical trials on the horizon that have not yet enrolled patients examining chimeric antigen receptor T-cell therapies, bi- and tri-specific killer engagers, and dual-affinity retargeting proteins. These data will be telling of the efficacy of B7-H3 inhibitors in both hematologic and solid malignancies. This study aimed to compile available results of B7-H3 inhibitors in oncology clinical trials.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10846634PMC
http://dx.doi.org/10.36401/JIPO-23-18DOI Listing

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