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Copanlisib (BAY 80-6946), developed by Bayer, is a selective Class I phosphoinositide 3-kinase inhibitor which has shown promise in Phase I/II clinical trials for the treatment of non-Hodgkin lymphoma and chronic lymphocytic leukemia.
The FDA awarded copanlisib orphan drug status for follicular lymphoma in February 2015.
Phase II clinical trials are in progress for treatment of endometrial cancer, diffuse large B-cell lymphoma, cholangiocarcinoma, and non-Hodgkin lymphoma. Copanlisib in combination with R-CHOP or R-B (rituximab and bendamustine) is in a phase III trial for relapsed indolent non-Hodgkin lymphoma (NHL). Two separate phase III trials are investigating the use of copanlisib in combination with rituximab for indolent NHL and the other using copanlisib alone in cases of rituximab-refractory indolent NHL.