In Phase 1 - Dose finding, patients with advanced histologically confirmed, documented CD20+ B-cell non-Hodgkin lymphoma (NHL) will be enrolled. The dose finding part will include 2 sub-parts: Dose escalation will determine the Maximum Tolerated Dose (MTD) or the highest tested dose, Dose assessment will determine RP2D.
In Phase 2 - Dose expansion, one or more cohorts will be selected with patients with subtypes of advanced histologically confirmed, documented CD20+ B-cell non-Hodgkin lymphoma.