The efficacy and tolerability of adriamycin, bleomycin, vinblastine, dacarbazine and Stanford V in older Hodgkin lymphoma patients: a comprehensive analysis from the North American intergroup trial E2496
2013
There is a lack of contemporary prospective data examining the ABVD (adriamycin, bleomycin, vinblastine, dacarbazine) and Stanford V (SV; doxorubicin, vinblastine, mechlorethamine, vincristine, bleomycin, etoposide, prednisone) regimens in older Hodgkin lymphoma (HL) patients. Forty-four advanced-stage, older HL patients (aged ≥60 years) were treated on the randomized study, E2496. Toxicities were mostly similar between chemotherapy regimens, although 24% of older patients developed bleomycin lung toxicity (BLT), which occurred mainly with ABVD (91%). Further, the BLT-related mortality rate was 18%. The overall treatment-related mortality for older HL patients was 9% versus 0.3% for patients aged <60 years (p<0.001). Among older patients, there were no survival differences between ABVD and SV. According to age, outcomes were significantly inferior for older versus younger patients (5-year failure-free survival: 48% vs 74%, respectively, p=0.002; 5-year overall survival: 58% and 90%, respectively, p<0.0001), while time-to-progression (TTP) was not significantly different (5-year TTP: 68% versus 78%, respectively, p=0.37). Furthermore, considering progression and death without progression as competing risks, the risk of progression was not different between older and younger HL patients (5 years: 30% and 23%, respectively, p=0.30); however, the incidence of death without progression was significantly increased for older HL patients (22% versus 9%, respectively, p<0.0001). Thus, the marked HL age-dependent survival differences appeared attributable primarily to non-HL events.
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