
This review discusses the emergence of tissue-agnostic cancer therapy—a treatment paradigm that targets tumors based on their shared genetic and molecular biomarkers, rather than their tissue of origin. Driven by a deeper understanding of oncogenic drivers, this approach enables the use of drugs like pembrolizumab, larotrectinib, and trastuzumab deruxtecan across multiple cancer types, leading to more personalized and effective treatments. While these therapies offer significant promise—especially for rare or hard-to-treat cancers—challenges such as treatment resistance, complex clinical trials, and limited access to biomarker testing remain. Ongoing research into new targets like KRASG12C and NRG fusions aims to expand this field, underscoring the need to overcome barriers for broader application and to move further beyond traditional, histology-based cancer care.
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