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Response to Brentuximab Vedotin by CD30 Expression in Non-Hodgkin Lymphoma.
Response to Brentuximab Vedotin by CD30 Expression in Non-Hodgkin Lymphoma. The oncologist Jagadeesh, D., Horwitz, S., Bartlett, N. L., Kim, Y., Jacobsen, E., Duvic, M., Little, M., Trepicchio, W., Fenton, K., Onsum, M., Lisano, J., Advani, R. 2022Abstract
The safety and efficacy of brentuximab vedotin (BV), an antibody-drug conjugate directed to the CD30 antigen, has been assessed in several trials in patients with peripheral T-cell lymphoma (PTCL), cutaneous T-cell lymphoma (CTCL), or B-cell non-Hodgkin lymphoma (NHL). The objective of this research was to examine the relationship between CD30 expression level and clinical response to BV.We analyzed response in patients treated with BV monotherapy in 5 prospective clinical studies in relapsed or refractory PTCL, CTCL, or B-cell NHL. CD30 expression was assessed by immunohistochemistry (IHC) using the Ber H2 antibody for 275 patients.Across all 5 studies, 140 (50.9%) patients had tumors with CD30 expression <10%, including 60 (21.8%) with undetectable CD30 by IHC. No significant differences were observed for any study in overall response rates between patients with CD30 expression =10% or <10%. Median duration of response was also similar in the CD30 =10% and <10% groups for all studies.In this analysis of studies across a range of CD30-expressing lymphomas, CD30 expression alone, as measured by standard IHC, does not predict clinical benefit from BV, making the determination of a threshold level of expression uncertain.
View details for DOI 10.1093/oncolo/oyac137
View details for PubMedID 35948003