June 11, 2026 · Journal of clinical oncology : official journal of the American Society of Clinical Oncology · DOI: 10.1200/JCO-26-00947

High-Dose Methotrexate as CNS Prophylaxis in Ultra High-Risk Large B-Cell Lymphoma: An International Multicenter Analysis

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The authors aimed to evaluate the effectiveness of high-dose methotrexate (HD-MTX) as a prophylactic treatment to prevent central nervous system (CNS) relapse in patients with ultra high-risk large B-cell lymphoma (UHR LBCL). An analysis of 1,923 UHR patients revealed no significant difference in the 3-year CNS relapse rates between those treated with HD-MTX and those who were not. These findings suggest that HD-MTX prophylaxis does not provide a meaningful benefit in reducing CNS relapse in this patient population.

Matthew R Wilson, Katharine L Lewis, Amy A Kirkwood, Kate Cwynarski, Chan Y Cheah, Tarec C El-Galaly, Diego Villa, Kerry J Savage, Paola Ghione, Sabela Bobillo, Karin E Smedby, Sara Harrysson, Marek Trneny, Magdalena Klanova, Robert Puckrin, Christopher P Fox, Mark Bishton, Gita Thanarajasingam, Nicole Wong Doo, Greg Hapgood, Carole Soussain, Sylvain Choquet, Michael Dickinson, Dipti Talaulikar, Sanjay de Mel, Gavin Preston, Matthew Ahearne, Eliza A Hawkes, Elisabeth Schorb, Aline Clavert, Matthew Ku, Anna Guidetti, Mayur Narkhede, Teresa Calimeri, Eric Durot, Jeffrey Smith, Loïc Renaud, Pamela McKay, Toby A Eyre

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