Abstract
Patients with chemotherapy-refractory non-Hodgkin lymphoma (NHL) have a poor prognosis with a median overall survival (OS) of only 10 months. To investigate the role of radiotherapy (RT) in such patients, we conducted a retrospective review of 17 patients with biopsy-proven refractory NHL who received hyperfractionated accelerated RT between 2000 and 2017. Forty-seven percent had stages I and II and 53% had stages III and IV disease. Majority (59%) had diffuse large B-cell lymphoma. One-year local control rate was 82%. Fifty-nine percent proceeded to hematopoietic stem cell transplantation (HSCT). At a median follow-up time of 8.8 months (range: 13 days to 17.4 years), 10 were alive with five in remission. Six patients were long-term survivors with a median OS of 8.1 years. Hyperfractionated accelerated RT in chemotherapy-refractory NHL provides durable local disease control in the majority of cases. Combined with HSCT, the RT regimen may also provide long-term disease remission in a subset of patients.
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