Journal
BRITISH JOURNAL OF HAEMATOLOGY
Volume 181, Issue 6, Pages 782-790Publisher
WILEY
DOI: 10.1111/bjh.15262
Keywords
Burkitt lymphoma; chemotherapy; stem cell transplant; population-based; treatment
Categories
Funding
- Roche Canada
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Treatment of Burkitt lymphoma (BL) with intensive, multi-agent chemotherapy with aggressive central nervous system (CNS) prophylaxis results in high cure rates, although no regimen is standard of care. We examined population-based survival outcomes of adults with BL treated with a modified combination of cyclophosphamide, vincristine, doxorubicin, prednisone and systemic high-dose methotrexate (MTX) (CODOX-M) with IVAC (ifosfamide, mesna, etoposide, cytarabine and intrathecal MTX) (CODOX-M/IVAC) +/- rituximab over a 15-year period in British Columbia. For the 81 patients identified (including 8 with CNS involvement and 18 with human immunodeficiency virus-associated BL), 5-year progression-free survival (PFS) and overall survival (OS) were 75% [95% confidence interval (CI): 63-83%] and 77% (95% CI: 66-85%), respectively, with no treatment-related deaths. Those who completed the regimen per protocol (n=38) had significantly improved 5-year PFS 86% (P=004) and OS 92% (P=0008), as did those under 60years with 5-year PFS 82% (P=0005) and OS 86% (P=0002), which remained significant in multivariate analysis [PFS: hazard ratio (HR) 336, P=0018; OS HR 403, P=0012]. Incorporation of high-dose systemic methotrexate also significantly affected multivariate survival outcomes (OS HR 028, P=0025). Stem cell transplant in first remission had no effect on OS or PFS. This large, real-world analysis of BL patients treated with CODOX-M/IVAC +/- rituximab demonstrates excellent survival outcomes comparable to clinical trials. These results help to serve as a benchmark when comparing curative therapies for BL patients as novel regimens are incorporated into clinical practice.
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