A multicentre retrospective comparison of central nervous system prophylaxis strategies among patients with high-risk diffuse large B-cell lymphoma

Chanyoon Cheah, Kirsten Herbert, Kacey M O'Rourke, Glen A Kennedy, Anupkumar George, P L Fedele, Michael Gilbertson, S Y Tan, David Ritchie, Stephen Opat, Henry Miles Prince, Michael J Dickinson, Kate L Burbury, Max Wolf, Elchanan Henry Januszewicz, Constantine Tam, David A Westerman, Dennis Carney, Simon Harrison, John Francis Seymour

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Central nervous system (CNS) relapse in diffuse large B-cell lymphoma (DLBCL) is a devastating complication; the optimal prophylactic strategy remains unclear. We performed a multicentre, retrospective analysis of patients with DLBCL with high risk for CNS relapse as defined by two or more of: multiple extranodal sites, elevated serum LDH and B symptoms or involvement of specific high-risk anatomical sites. We compared three different strategies of CNS-directed therapy: intrathecal (IT) methotrexate (MTX) with (R)-CHOP group 1 ; R-CHOP with IT MTX and two cycles of high-dose intravenous (IV) MTX group 2 ; dose-intensive systemic antimetabolite-containing chemotherapy (Hyper-CVAD or CODOXM/IVAC) with IT/IV MTX group 3 . Overall, 217 patients were identified (49, 125 and 43 in groups 1-3, respectively). With median follow-up of 3.4 (range 0.2-18.6) years, 23 CNS relapses occurred (12, 10 and 1 in groups 1-3 respectively). The 3-year actuarial rates (95 CI) of CNS relapse were 18.4 (9.5-33.1 ), 6.9 (3.5-13.4 ) and 2.3 (0.4-15.4 ) in groups 1-3, respectively (P=0.009). The addition of high-dose IV MTX and/or cytarabine was associated with lower incidence of CNS relapse compared with IT chemotherapy alone. However, these data are limited by their retrospective nature and warrant confirmation in prospective randomised studies
Original languageEnglish
Pages (from-to)1072 - 1079
Number of pages8
JournalBritish Journal of Cancer
Issue number6
Publication statusPublished - 2014

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