Short-course R-CHOP followed by (90)Y-Ibritumomab tiuxetan in previously untreated high-risk elderly diffuse large B-cell lymphoma patients: 7-year long-term results

Blood Cancer J. 2016 May 13;6(5):e425. doi: 10.1038/bcj.2016.29.

Abstract

An update at 7 years was conceived for our multicenter phase II study in which 55 elderly high-risk untreated diffuse large B-cell lymphoma patients were treated with (90)Y-ibritumomab tiuxetan after a short course of rituximab, cyclophosphamide, doxorubicin, vincristine and prednisolone (R-CHOP) as long-term follow-up analyses of this combined therapeutic modality are lacking. The overall response rate to the entire regimen was 80%, including 73% (40/55) of complete response (CR) rate and 7% (4/55) of partial response rate. At the time of writing, 24/55 (43.6%) patients experienced a progression disease and 20 of 40 (50%) patients who obtained a CR are still alive in continuous CR. With a median follow-up of 7 years, the disease-free survival was 43.3% and the progression-free survival was 36.1%. The overall survival at 7.9 years was 38.9% (27 deaths mainly because of lymphoma). Two patients developed secondary hematological malignancies, an acute myeloid leukemia and a myelodysplastic syndrome, at 4 and 3 years from radioimmunotherapy, respectively. Our data confirm the feasibility, efficacy and safety of four cycles of R-CHOP followed by radioimmunotherapy consolidation even in the long term: this combination allows dispensing less chemotherapy in a frail group of patients without invalidating response quality and duration.

MeSH terms

  • Aged
  • Aged, 80 and over
  • Antibodies, Monoclonal / administration & dosage
  • Antibodies, Monoclonal / adverse effects
  • Antibodies, Monoclonal / therapeutic use*
  • Antibodies, Monoclonal, Murine-Derived / adverse effects
  • Antibodies, Monoclonal, Murine-Derived / therapeutic use
  • Antineoplastic Combined Chemotherapy Protocols / adverse effects
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
  • Combined Modality Therapy
  • Cyclophosphamide / adverse effects
  • Cyclophosphamide / therapeutic use
  • Doxorubicin / adverse effects
  • Doxorubicin / therapeutic use
  • Female
  • Follow-Up Studies
  • Humans
  • Lymphoma, Large B-Cell, Diffuse / diagnosis
  • Lymphoma, Large B-Cell, Diffuse / mortality
  • Lymphoma, Large B-Cell, Diffuse / therapy*
  • Male
  • Middle Aged
  • Prednisone / adverse effects
  • Prednisone / therapeutic use
  • Radioimmunotherapy
  • Rituximab
  • Survival Analysis
  • Treatment Outcome
  • Vincristine / adverse effects
  • Vincristine / therapeutic use
  • Yttrium Radioisotopes / administration & dosage
  • Yttrium Radioisotopes / therapeutic use*

Substances

  • Antibodies, Monoclonal
  • Antibodies, Monoclonal, Murine-Derived
  • R-CHOP protocol
  • Yttrium Radioisotopes
  • Rituximab
  • ibritumomab tiuxetan
  • Vincristine
  • Doxorubicin
  • Cyclophosphamide
  • Prednisone