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Zhu K, Jamroz A, Huang S, Villa D, Freeman CL, Scott DW, Slack G, Sehn LH, Connors JM, Toze CL, Savage KJ, Gerrie AS. Outcomes of Hodgkin variant Richter transformation in chronic lymphocytic leukaemia and small lymphocytic lymphoma in British Columbia. Br J Haematol 2022; 198:684-692. [PMID: 35567407 DOI: 10.1111/bjh.18241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 11/30/2022]
Abstract
Hodgkin variant Richter transformation (HvRT) is a rare and challenging complication of chronic lymphocytic leukaemia (CLL) for which information on prognostic factors and treatment approaches remain limited. We analysed characteristics and survival outcomes of a population-based cohort of 32 patients with HvRT identified in British Columbia over a 40-year period. Median interval from CLL diagnosis to HvRT was 5.6 years (range, 0-33.6), with five cases diagnosed concurrently. Most patients (80%) had treatment for CLL prior to HvRT. Median age at HvRT was 71 years (range, 51-86) and the majority of patients had high-risk disease, including stage 3-4 in 87% and International Prognostic Score (IPS) ≥ 4 in 65%. Two-year progression-free (PFS) and overall survival (OS) from HvRT were 47% (95% CI: 29%-64%) and 57% (95% CI: 38%-72%), respectively. OS from HvRT was significantly worse in those with anaemia (p = 0.02), elevated lactate dehydrogenase (p = 0.04), high IPS (p = 0.04), and worse performance status (p = 0.001). For those treated with curative-intent ABVD/ABVD-like therapy, 2-year PFS and OS were 70% (95% CI: 45%-85%) and 74% (95% CI: 49%-89%), respectively. In this real-world population-based cohort, HvRT was associated with poor clinical outcomes overall; however, those able to tolerate curative-intent therapy had similar survival to older patients with de novo HL.
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Affiliation(s)
- Kai Zhu
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew Jamroz
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Faculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Steven Huang
- Leukemia/Bone Marrow Transplant Program of BC and Division of Hematology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Diego Villa
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ciara L Freeman
- Department of Blood and Marrow Transplant and Cellular Immunotherapy, Moffitt Cancer Centre, Tampa, Florida, USA
| | - David W Scott
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Graham Slack
- Department of Pathology and Laboratory Medicine, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Laurie H Sehn
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joseph M Connors
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Cynthia L Toze
- Leukemia/Bone Marrow Transplant Program of BC and Division of Hematology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kerry J Savage
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alina S Gerrie
- Centre for Lymphoid Cancer and Division of Medical Oncology, BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
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