Chronic lymphocytic leukemia (CLL) is generally characterized by an indolent disease course. Histologic transformation (also known as Richter's transformation) to more aggressive lymphomas, such as diffuse large B-cell lymphoma or Hodgkin lymphoma, occurs in approximately 2% to 10% of patients and is associated with a poor prognosis. These NCCN Guidelines Insights discuss the recommendations for the diagnosis and management of patients with histologic transformation.
William G. Wierda, John C. Byrd, Jeremy S. Abramson, Syed F. Bilgrami, Greg Bociek, Danielle Brander, Jennifer Brown, Asher A. Chanan-Khan, Julio C. Chavez, Steve E. Coutre, Randall S. Davis, Christopher D. Fletcher, Brian Hill, Brad S. Kahl, Manali Kamdar, Lawrence D. Kaplan, Nadia Khan, Thomas J. Kipps, Shuo Ma, Sami Malek, Anthony Mato, Claudio Mosse, Vishala T. Neppalli, Mazyar Shadman, Tanya Siddiqi, Deborah Stephens, Nina Wagner, Mary A. Dwyer and Hema Sundar
Featured Updates to the NCCN Guidelines
Andrew D. Zelenetz, Leo I. Gordon, Jeremy S. Abramson, Ranjana H. Advani, Nancy L. Bartlett, Paolo F. Caimi, Julie E. Chang, Julio C. Chavez, Beth Christian, Luis E. Fayad, Martha J. Glenn, Thomas M. Habermann, Nancy Lee Harris, Francisco Hernandez-Ilizaliturri, Mark S. Kaminski, Christopher R. Kelsey, Nadia Khan, Susan Krivacic, Ann S. LaCasce, Amitkumar Mehta, Auayporn Nademanee, Rachel Rabinovitch, Nishitha Reddy, Erin Reid, Kenneth B. Roberts, Stephen D. Smith, Erin D. Snyder, Lode J. Swinnen, Julie M. Vose, Mary A. Dwyer and Hema Sundar
Diffuse large B-cell lymphomas (DLBCLs) and follicular lymphoma (FL) are the most common subtypes of B-cell non-Hodgkin’s lymphomas in adults. Histologic transformation of FL to DLBCL (TFL) occurs in approximately 15% of patients and is generally associated with a poor clinical outcome. Phosphatidylinositol 3-kinase (PI3K) inhibitors have shown promising results in the treatment of relapsed/refractory FL. CAR T-cell therapy (axicabtagene ciloleucel and tisagenlecleucel) has emerged as a novel treatment option for relapsed/refractory DLBCL and TFL. These NCCN Guidelines Insights highlight important updates to the NCCN Guidelines for B-Cell Lymphomas regarding the treatment of TFL and relapsed/refractory FL and DLBCL.