This February, Trilacicilib (COSELA) received approval by the FDA as the first therapy in its class to reduce the frequency of chemotherapy-induced bone marrow suppression in adults receiving certain types of chemotherapy for extensive-stage small cell lung cancer (SCLC).

Trilacicilib is a cyclin-dependent kinase (CDK) 4/6 inhibitor.


It contains diazaspiro[5.5]undecan-3-one moiety in its backbone.


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