ABSTRACT
BACKGROUND: Non-Hodgkin lymphoma patients have a 25% increased risk of secondary primary neoplasms (SPNs). Regarding the controversy about the increased risk of SPN in patients exposed to radioimmunotherapy (RIT), we have analyzed this issue in a cohort of follicular lymphoma (FL) patients treated with/without RIT. PATIENTS AND METHODS: A retrospective study including all consecutive FL patients diagnosed since 2001 was performed. Demographic, clinical data including the incidence of any kind of neoplasm (excluding basocellular skin carcinoma) were recorded. RESULTS: A total of 242 patients were registered, male/female: 103/139, mean age: 59.9 yr (15-86), stage IV (57.8%), and Follicular Lymphoma Prognostic Index (FLIPI) low-risk (62.15%) predominance. Ninety-six patients (39.7%) were treated with 90Y-IT. The median follow-up for patients treated or not with 90Y-IT was 61 (8-273) and 38 (1-171) months. With respect to SPN incidence, 38 (15.6%) patients have at least two cancers, in 17 (44.7%), FL was the SPN; for the rest (226), the global incidence of SPNs was 9.3% (21), but there were no differences related to the exposition or not to 90Y-IT (P = 0.26). In seven patients, more than two (2-6) different therapies were registered; four were exposed to fludarabine-based therapy, three to radiotherapy and two to autologous stem-cell transplantation, and in the RIT cohort, two patients developed myelodysplastic syndrome. CONCLUSION: This is one of the largest single institution reports assessing the risk of SPN in FL patients treated (96) or not (146) with 90Y-IT. It seems that 90Y-IT does not increase significantly the risk of SPN but avoiding its use after fludarabine and other intense cytotoxic schemes is recommended.
Subject(s)
Antibodies, Monoclonal/therapeutic use , Lymphoma, Follicular/epidemiology , Lymphoma, Follicular/radiotherapy , Neoplasms, Second Primary/epidemiology , Neoplasms, Second Primary/etiology , Adolescent , Adult , Aged , Aged, 80 and over , Antibodies, Monoclonal/adverse effects , Combined Modality Therapy/adverse effects , Combined Modality Therapy/methods , Female , Follow-Up Studies , Humans , Incidence , Lymphoma, Follicular/diagnosis , Male , Middle Aged , Neoplasm Staging , Radioimmunotherapy/adverse effects , Retrospective Studies , Risk Assessment , Young AdultABSTRACT
BACKGROUND: The mean age of patients included in clinical trials does not reflect the current clinical practice for patients with B-cell non-Hodgkin lymphoma (B-NHL). We compared our outcomes for patients with B-NHL aged < 65 and > 65 years who were treated with 90-yttrium-ibritumomab tiuxetan therapy ((90)Y-IT). PATIENTS AND METHODS: A total of 108 patients who had received (90)Y-IT according to the hospital protocol (ISCRTN36210045) were eligible. A quality of life (QoL) assessment using the Medical Outcomes Study short form 36-item survey was performed for patients aged > 65 years. RESULTS: Of the 108 patients, 43 were aged > 65 years (mean age, 73.4 years; men 46.15%); 37 had follicular NHL (86.0%). Also, 27 patients had previously undergone < 2 therapy regimens (62.8%). The mean follow-up period was 45.2 months. The mean progression-free survival (PFS) period was 71.3 months, and the mean overall survival was 78.2 months. The median values were not reached. The overall response rate was 90.5%, and a complete response was observed in 36 of the 43 patients aged > 65 years (85.7%). Neutropenia (43.3%) and thrombocytopenia (45.2%) were the most frequent grade 3 and 4 toxicities. Five patients required a red blood cell transfusion and 11, a platelet transfusion. Five patients aged > 65 years (11.6%) developed a second tumor. These outcomes were similar to those for the younger patients. The QoL assessment showed scores similar to those of general population for general health and social functioning. CONCLUSION: This is the largest cohort of NHL treated with RIT in a single institution in Spain. We observed a high response rate and prolonged PFS in patients with B-NHL, independent of patient age. Thus, consolidation RIT offers better outcomes with manageable toxicity.
Subject(s)
Antibodies, Monoclonal/therapeutic use , Lymphoma, Non-Hodgkin/drug therapy , Lymphoma, Non-Hodgkin/radiotherapy , Radioimmunotherapy/methods , Adult , Aged , Aged, 80 and over , Antibodies, Monoclonal/administration & dosage , Antibodies, Monoclonal/pharmacology , Disease-Free Survival , Female , Humans , Male , Middle AgedABSTRACT
Background. Based on historical data we reviewed our hospital clinical database to analyse our updated information and therapy outcomes of follicular non-Hodgkin lymphoma (F-NHL) patients treated with (90)Y-Ibritumomab tiuxetan. Patients and Methods. Between 2005 and 2011, 56 F-NHL patients were included in a clinical protocol conducted by a multidisciplinary team and treated in the same centre. All patients received 0.3 or 0.4 mCi/kg IV (88%) of (90)Y-IT; response evaluation was performed 12 weeks after. Results. M/F 44.6%/55.4%, mean age 61.45 years (30-85); ECOG 0-1 96.9%. According to FLIPI score, distribution were good: 58.5%, intermediate: 29.2%, and poor: 12.3%. Previous therapies: >2: 40% (26). ORR was 94.6% (53/56). CR: 85.7%; CR according to previous disease: relapsed disease: 90% (27/30), refractory disease: 42.85% (3/7), consolidation with CR: 92.85% (13/14), and consolidation with PR: 100% (5/5). Global PR and NR were 8.9% (5) and 5.3% (3), respectively. Mean OS 63.86 months with a mean follow-up time of 57 months (2-73). Mean TTP: 52.65 months (95% CI: 43.83-61.48). Median OS and TTP were not achieved. No hospital submissions or deaths were registered. Conclusions. This study confirms the safety and high efficacy of (90)Y-IT in F-NHL patients, RIT in early stage of disease could improve outcomes.
