Older patients (aged ≥60 years) with previously untreated advanced-stage classical Hodgkin the phase lymphoma: III ECHELON-1 a detailed study analysis from the phase III ECHELON-1 study

Andrew M. Evens, Joseph M. Connors, Anas Younes, Stephen M. Ansell, Won Seog Kim, John Radford, Tatyana Feldman, Joseph Tuscano, Kerry J. Savage, Yasuhiro Oki, Andrew Grigg, Christopher Pocock, Monika Dlugosz-Danecka, Keenan Fenton, Andres Forero-Torres, Rachael Liu, Hina Jolin, Ashish Gautam, Andrea Gallamini

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Abstract

Effective and tolerable treatments are needed for older patients with classical Hodgkin lymphoma. We report results for older patients with classical Hodgkin lymphoma treated in the large phase III ECHELON-1 study of frontline brentuximab vedotin plus doxorubicin, vinblastine, and dacarbazine (A+AVD) versus doxorubicin, bleomycin, vinblastine, and dacarbazine (ABVD). Modified progression-free survival per independent review facility for older versus younger patients (aged ≥60 vs. <60 years) was a pre-specified subgroup analysis; as the ECHELON-1 study was not powered for these analyses, reported P-values are descriptive. Of 1,334 enrolled patients, 186 (14%) were aged ≥60 years (A+AVD: n=84, ABVD: n=102); results below refer to this age group. Modified progression-free survival per independent review facility was similar in the two arms at 24 months (A+AVD: 70.3% [95% confidence interval (CI): 58.4–79.4], ABVD: 71.4% [95% CI: 60.5–79.8], hazard ratio (HR)=1.00 [95% CI: 0.58–1.72], P=0.993). After a median follow-up of 60.9 months, 5-year progression-free survival per investigator was 67.1% with A+AVD versus 61.6% with ABVD (HR=0.820 [95% CI: 0.494–1.362], P=0.443). Comparing A+AVD versus ABVD, grade 3/4 peripheral neuropathy occurred in 18% versus 3%; any-grade febrile neutropenia in 37% versus 17%; and any-grade pulmonary toxicity in 2% versus 13%, respectively, with three (3%) pulmonary toxicity-related deaths in patients receiving ABVD (none in those receiving A+AVD). Altogether, A+AVD showed overall similar efficacy to ABVD with survival rates in both arms comparing favorably to those of prior series in older patients with advanced-stage classical Hodgkin lymphoma. Compared to ABVD, A+AVD was associated with higher rates of neuropathy and neutropenia, but lower rates of pulmonary-related toxicity. Trials registered at ClinicalTrials.gov identifiers: NCT01712490; EudraCT number: 2011-005450-60.

Original languageEnglish (US)
Pages (from-to)1086-1094
Number of pages9
JournalHaematologica
Volume107
Issue number5
DOIs
StatePublished - May 2022
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Hematology

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