Le modèle de risque du German Hodgkin Study Group est utile pour les patients atteints de lymphome de Hodgkin traités par irradiation après greffe autologue

Translated title of the contribution: The German Hodgkin Study Group risk model is useful for Hodgkin lymphoma patients receiving radiotherapy after autologous stem cell transplant

C. Furlan, F. Matrone, M. Rupolo, R. Ciancia, E. Zanet, B. Montante, E. Palazzari, F. Navarria, M. Trovo, P. Bulian, M. Spina, E. Coassin, M. Mascarin, A. De Paoli, G. Franchin, M. Michieli

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To apply the German Hodgkin Study Group (GHSG) risk model in patients with recurrent/refractory Hodgkin lymphoma receiving involved-field radiotherapy after autologous stem cell transplantation. Material and methods: The study consisted in the retrospective analysis of 30 consecutive patients with recurrent/refractory Hodgkin lymphoma who received involved-field radiotherapy after autologous stem cell transplantation. Our policy was of adding involved-field radiotherapy for patients with positive PET scan before autologous stem cell transplantation (23 out of 30 patients, 77%), and/or irradiating sites of bulky disease at relapse (11 out of 30 patients, 37%). Patients were stratified into four risk groups according to the presence of the five clinical risk factors identified by the GHSG; (1) stage IV disease; (2) time to relapse ≤ 3 months; (3) ECOG-PS ≥ 1; (4) bulk ≥ 5 cm; and (5) inadequate response to salvage chemotherapy. Results: The median interval from autologous stem cell transplantation to involved-field radiotherapy was 3 months (range, 1–7 months), and the median involved-field radiotherapy dose was 35 Gy (range, 12–40 Gy). At a median follow-up of 35 months (range, 1–132 months), the 2-year progression-free survival in the entire series was 60%. When examining the four different GHSG risk groups, the progression-free survival rate at 2 years was 86%, 83%, 50%, and 36% for patients with score = 0, score = 1, score = 2, and score = 3 to 5, respectively (P = 0,01). Among the 12 patients having at least three risk factors who underwent thoracic involved-field radiotherapy, three (25%) developed pneumonitis. Conclusion: The adoption of the GHSG risk model at the time of recurrence/progression is a useful prognostic tool to select patients with Hodgkin lymphoma for consolidative involved-field radiotherapy after autologous stem cell transplantation.

Translated title of the contributionThe German Hodgkin Study Group risk model is useful for Hodgkin lymphoma patients receiving radiotherapy after autologous stem cell transplant
Original languageFrench
Pages (from-to)378-384
Number of pages7
JournalCancer/Radiotherapie
Volume23
Issue number5
DOIs
Publication statusPublished - Sep 2019

Keywords

  • Hodgkin lymphoma
  • Radiotherapy
  • Recurrent
  • Transplant

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging

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