Prognostic Value of Baseline Metabolic Tumor Volume in Early-Stage Hodgkin Lymphoma in the Standard Arm of the H10 Trial

Blood. 2018 Mar 29;131(13):1456-1463. doi: 10.1182/blood-2017-07-795476. Epub 2018 Feb 1.

Abstract

We tested baseline positron emission tomography (PET)/computed tomography (CT) as a measure of total tumor burden to better identify high-risk patients with early-stage Hodgkin lymphoma (HL). Patients with stage I-II HL enrolled in the standard arm (combined modality treatment) of the H10 trial (NCT00433433) with available baseline PET and interim PET (iPET2) after 2 cycles of doxorubicin, bleomycin, vinblastine, and dacarbazine were included. Total metabolic tumor volume (TMTV) was measured on baseline PET. iPET2 findings were reported negative (DS1-3) or positive (DS4-5) with the Deauville scale (DS). The prognostic value of TMTV was evaluated and compared with baseline characteristics, staging classifications, and iPET2. A total of 258 patients were eligible: 101 favorable and 157 unfavorable. The median follow-up was 55 months, with 27 progression-free survival (PFS) and 12 overall survival (OS) events. TMTV was a prognosticator of PFS (P < .0001) and OS (P = .0001), with 86% and 84% specificity, respectively. Five-year PFS and OS were 71% and 83% in the high-TMTV (>147 cm3) group (n = 46), respectively, vs 92% and 98% in the low-TMTV group (≤147 cm3). In multivariable analysis including iPET2, TMTV was the only baseline prognosticator compared with the current staging systems proposed by the European Organization for Research and Treatment of Cancer/Groupe d'Etude des Lymphomes de l'Adulte, German Hodgkin Study Group, or National Comprehensive Cancer Network. TMTV and iPET2 were independently prognostic and, combined, identified 4 risk groups: low (TMTV≤147+DS1-3; 5-year PFS, 95%), low-intermediate (TMTV>147+DS1-3; 5-year PFS, 81.6%), high-intermediate (TMTV≤147+DS4-5; 5-year PFS, 50%), and high (TMTV>147+DS4-5; 5-year PFS, 25%). TMTV improves baseline risk stratification of patients with early-stage HL compared with current staging systems and the predictive value of early PET response as well.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Antineoplastic Combined Chemotherapy Protocols / administration & dosage*
  • Bleomycin / administration & dosage
  • Dacarbazine / administration & dosage
  • Disease-Free Survival
  • Doxorubicin / administration & dosage
  • Female
  • Follow-Up Studies
  • Hodgkin Disease* / drug therapy
  • Hodgkin Disease* / metabolism
  • Hodgkin Disease* / mortality
  • Hodgkin Disease* / pathology
  • Humans
  • Male
  • Middle Aged
  • Neoplasm Staging
  • Survival Rate
  • Vinblastine / administration & dosage

Substances

  • Bleomycin
  • Vinblastine
  • Dacarbazine
  • Doxorubicin

Associated data

  • ClinicalTrials.gov/NCT00433433