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Combination therapy incorporating Bcl-2 inhibition with Venetoclax for the treatment of refractory primary plasma cell leukemia with t (11;14).

Wilson I GonsalvesFrancis K BuadiShaji K Kumar
Published in: European journal of haematology (2017)
Primary plasma cell leukemia (pPCL) is the most aggressive form of the plasma cell (PC) malignancy, multiple myeloma (MM). It has been commonly associated with the presence of a chromosome translocation involving the immunoglobulin heavy chain (IgH) locus on 14q32, that is t (11;14). Results from early phase clinical trials utilizing the selective Bcl-2 inhibitor, venetoclax, as a single agent in patients with relapsed MM have had remarkable efficacy among patients with t (11;14) abnormality. The present case demonstrates the ability of a combination regimen incorporating Bcl-2 inhibition with daratumumab, bortezomib, venetoclax, and dexamethasone to induce a rapid and very deep hematologic response in a pPCL patient with t (11;14), even in a setting of very refractory disease. This case highlights the need to further study Bcl-2 inhibition-based therapy as an option for therapy in patients with pPCL with t (11;14).
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