A Study of Acalabrutinib in Combination With Rituximab + (Bendamustine or Venetoclax) in Subjects With MCL

This is a multicenter, open-label Phase 1b study to assess the safety and efficacy of acalabrutinib when administered concomitantly with bendamustine and rituximab in subjects with treatment naive or relapse refractory mantle cell lymphoma (Part 1), or when administered concomitantly with venetoclax and rituximab in subjects with treatment naive mantle cell lymphoma (Part 2).