NCT06977711 2025-08-05Loncastuximab and Roflumilast Added to R-CHOP (Lo-(Rituximab and Roflumilast) RR-CHOP) for Naïve High-Risk Diffuse Large B-cell Lymphoma (DLBCL)The University of Texas Health Science Center at San AntonioPhase 1 Recruiting10 enrolled