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Original Articles: Clinical

Impact of time from diagnosis to initiation of curative chemotherapy on survival of patients with diffuse large B-cell lymphoma

, , , , , , , , & show all
Pages 276-282 | Received 24 Feb 2015, Accepted 22 May 2015, Published online: 19 Jun 2015
 

Abstract

Although it is generally regarded appropriate to start chemotherapy promptly after a diagnosis of diffuse large B-cell lymphoma (DLBCL), the optimal time from diagnosis to treatment (TDT) is unknown. A total of 689 patients diagnosed with DLBCL and treated with ≥ 1 cycle of CHOP-R with curative intent during 2003–2008 in British Columbia were identified: 347 (50%) TDT ≤ 4 weeks, 277 (40%) TDT 5–8 weeks, 65 (10%) TDT > 8 weeks. For the respective TDT groups, 5-year OS estimates were 61%, 74%, 63% (p = 0.006); 5-year PFS 57%, 70%, 61% (p = 0.006); and 5-year DSS 64%, 80%, 77% (p <0.001). In multivariate analysis, TDT >8 weeks was associated with worse OS (HR 1.20 (95% CI 1.03, 1.41), p = 0.020), PFS (HR 1.33 (95% CI 1.15, 1.54), p < 0.001), and DSS (HR 1.40 (95% CI 1.10, 1.78), p = 0.006). Clinicians should endeavor to initiate curative chemotherapy as soon as possible after a diagnosis of DLBCL is established.

Potential conflict of interest

Disclosure forms provided by the authors are available with the full text of this article at www.informahealthcare.com/lal.

Supplementary material available online

Supplementary Table I and Figure 1.

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