Prolonged progression-free survival and preserved quality of life in the Canadian prospective study of tositumomab and iodine(131)-tositumomab for previously treated, rituximab-exposed, indolent non-Hodgkin lymphoma.

Radioimmunotherapy offers a unique treatment modality for indolent non-Hodgkin lymphoma (iNHL). We report 5-year outcomes and quality of life (QoL) in tositumomab and iodine(131)-tositumomab (TST/I(131)-TST) treated patients with iNHL previously treated with rituximab. Ninety-three patients with ≥ 2 lines of therapy, responding to last treatment, were enrolled at 12 Canadian centers. Median age, disease duration and number of prior therapies (#PTx) were 59 years, 4.9 years and 5, respectively. Outcomes were response rate (43.0%), median progression-free survival (mPFS) (12.0 months), 5-year PFS (27%) and median overall survival (OS) (59.8 months). In responders, median response duration and mPFS were not reached. Improvements in QoL were seen by week 7. In univariate and multivariate analyses, hemoglobin, disease bulk and body surface area (BSA) predicted OS, whereas lactate dehydrogenase (LDH), bulk, BSA and #PTx predicted PFS. Most common adverse events (AEs) were fatigue and nausea. Two cases of myelodysplastic syndrome (MDS) were reported. TST/I(131)-TST was associated with durable responses, and prolonged OS and PFS in heavily pretreated iNHL.

Treatment of Hodgkin lymphoma with adriamycin, bleomycin, vinblastine and dacarbazine without routine granulocyte-colony stimulating factor support does not increase the risk of febrile neutropenia: a prospective cohort study.

Although patients with Hodgkin lymphoma treated with adriamycin, bleomycin, vinblastine and dacarbazine (ABVD) chemotherapy frequently develop neutropenia, febrile neutropenia is uncommon. Three retrospective trials reported that ABVD could be safely administered without dose delays or granulocyte-colony stimulating factor (G-CSF) support. We retrospectively reviewed the charts of 89 patients treated with ABVD and found that the incidence of febrile neutropenia was 0.5% (five of 927 treatments). This prompted a change to our institutional policy so that patients receiving ABVD no longer receive routine G-CSF for uncomplicated neutropenia. We then prospectively assessed the safety of this policy change. Thirty-three patients received a total of 327 ABVD treatments, 185 (57%) of which were administered with a neutrophil count <1.5 × 10(9)/L. Febrile neutropenia occurred in 2/33 patients (6%), complicating 0.6% of chemotherapy treatments (2/327). Eliminating routine G-CSF saved $10 241 per patient. Omission of G-CSF for uncomplicated neutropenic patients receiving ABVD for Hodgkin lymphoma is cost-saving and safe.