RecruitingPhase 2Drug trialA Study of Pirtobrutinib, Venetoclax, and Rituximab in People With Waldenström's Macroglobulinemia (WM)/Lymphoplasmacytic Lymphoma (LPL)The purpose of this study is to find out if the combination of pirtobrutinib, venetoclax, and rituximab is an effective treatment for participants with Waldenström's macroglobulinemia (WM)/lymphoplasmacytic lymphoma (LPL)