A Study of JNJ-80948543, a T-cell Redirecting CD79b x CD20 x CD3 Trispecific Antibody, in Participants With Non-Hodgkin Lymphoma (NHL) and Chronic Lymphocytic Leukemia (CLL)

Inclusion Criteria: * Histologic documentation of disease: B-cell non-Hodgkin lymphoma (NHL) or chronic lymphocytic leukemia (CLL) requiring therapy. All participants must have relapsed or refractory disease with no other approved therapies available that would be more appropriate in the investigator's judgment. B-cell NHL as defined per the 2016 world health organization (WHO) classification. In addition, the following disease-specific criteria outlined below must be met: If diffuse large B-cell lymphoma (DLBCL) or other high-Grade B-cell lymphoma: Received, or not eligible for high-dose chemotherapy and autologous stem cell transplantation with curative intent or deemed not eligible or fit for an alternative 2nd line therapy. Participants may be eligible if relapsing after chimeric antigen receptors (CAR-T) cell treatment or while waiting for a CAR-T cell treatment. If transformed lymphoma from low Grade B-cell malignancies: Received or not a candidate for an approved first-line regimen for DLBCL and received or not eligible for high-dose chemotherapy and autologous stem cell transplantation with curative intent. If follicular lymphoma (FL) (all grades): Previously treated with a minimum of 2 prior lines of systemic therapy, with at least one prior line containing an anti-CD20 antibody. If mantle cell lymphoma (MCL), marginal zone lymphoma (MZL) (including nodal, extranodal/MALT, and splenic MZL subtypes): Previously treated with at least 2 lines of systemic therapy.…