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Diffuse large B-cell lymphoma (DLBCL) is a biologically and clinically heterogeneous disease. Despite good responses to standard of care frontline chemoimmunotherapy, the prognosis of relapsed/refractory (R/R) patients remains obscured by the possible inadequate responses to salvage therapy, eligibility for autologous transplantation, age and comorbidities. Polatuzumab vedotin is an antibody-drug conjugate formed by a CD79b antibody conjugated to the highly cytotoxic agent monomethyl auristatin E by means of a cleavable linker. Following significant clinical efficacy in R/R DLBCL, polatuzumab vedotin was granted accelerated Food and Drug Administration (FDA) approval in combination with bendamustine plus rituximab for patients who have failed at least two prior therapies. Other clinical studies involving polatuzumab vedotin in combination with other therapy regimens are also under evaluation for previously untreated DLBCL patients. In this article, we review the different phases from the preclinical development of polatuzumab vedotin to studies leading to its first approval, and highlight the potential future roles of this molecule in the treatment landscape of DLBCL.
Assi et al. (Fri,) studied this question.