Phase II Copanlisib in Relapsed/Refractory Diffuse Large B-cell Lymphoma (DLBCL)

Participants assigned to receive copanlisib intravenous (IV) infusion at a dose of 60 mg as single agent on Days 1, 8, and 15 of 28-day treatment cycle. Copanlisib treatment was to be continued until disease progression (PD), unacceptable toxicity, or until another criterion was met for withdrawal from the study treatment