Novel Agents in the Treatment of Thymic Malignancies

Opinion statement

The management of thymic tumours is a paradigm of multidisciplinary collaboration. Chemotherapy may be administered part of curative-intent sequential strategy integrating subsequent surgery or radiotherapy, or as an exclusive treatment if local treatment is not achievable. Recurrences of thymic epithelial tumors should be managed according to the same strategy as newly diagnosed tumors. Given the limited activity of cytotoxic agents in the advanced, refractory setting, novel and innovative agents are needed. The better understanding of thymic carcinogenesis may provide a rationale in this setting.

Targeted agents approved for other solid tumors that have shown activity in thymic tumors include mTOR, KIT inhibitors, as well as somatostatin analogues. Anti-angiogenic agent sunitinib may be considered a standard in advanced lines of treatment. Ongoing studies are assessing the opportunity of targeting emerging targets, including PI3K, CDK, and immune checkpoint PD-1/PD-L1.

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