U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Copanlisib, developed by Bayer, is a phosphoinositide 3-kinase (PI3K) inhibitor with potential antineoplastic activity. Copanlisib inhibits the activation of the PI3K signaling pathway, which may result in inhibition of tumor cell growth and survival in susceptible tumor cell populations. Activation of the PI3K signaling pathway is frequently associated with tumorigenesis and dysregulated PI3K signaling may contribute to tumor resistance to a variety of antineoplastic agents. Copanlisib is currently under Phase II/III clinical trials for the treatment of non-Hodgkin lymphoma and chronic lymphocytic leukemia.