Radiation therapy is an effective modality in the treatment of mantle cell lymphoma, even in heavily pretreated patients

Waqar Haque, K. Ranh Voong, Ferial Shihadeh, Isidora Arzu, Chelsea Pinnix, Ali Mazloom, L. Jeffrey Medeiros, Jorge Romaguera, Alma Rodriguez, Michael Wang, Pamela Allen, Bouthaina Dabaja

Research output: Contribution to journalArticlepeer-review

Abstract

Radiotherapy (RT) is an effective modality in heavily pretreated and chemorefractory patients with mantle cell lymphoma. Low dose radiation offered palliation in 95% of patients, 92% of treated sites showed complete response to RT. Introduction: Mantle cell lymphoma has an aggressive clinical course and continuous relapse pattern with a median survival of 3 to 7 years. Multiple courses of chemotherapy are the basis of treatment. Radiotherapy is underutilized in this disease. We undertook this study to assess the role of radiation therapy . Materials and Methods: A total of 41 consecutive patients with mantle cell lymphoma diagnosed from December, 1999 to January, 2010 who received radiation therapy were reviewed retrospectively. The main endpoint was in-field lymphoma response at each irradiated disease site . Results: There were 39 evaluable patients (68 symptomatic sites). Sites treated included: nodal stations (n = 31), soft tissue (n = 13), mucosal sites (n = 11), central nervous system (n = 10), gastrointestinal tract (n = 2), and bone (n = 1). Median maximum tumor size at presentation was 3.5 cm (range, 1.3 cm-9.6 cm). The median dose of radiation was 30.6 Gy (range 18-40 Gy). Median follow-up post radiation per site was 12.3 months (range, 0.6-80.9 months). Response to treatment was complete in 47 sites (69.1%), partial in 16 sites (23.5%), and 5 sites (7.4%) had stable disease. In 9 (13.2%) sites local relapse occurred (median 7 months; range 2-21). The mean size of lymphoma at time of RT correlated with relapse, with tumors with local relapse larger than those without a local relapse (P = .005) . Conclusions: Our data add to accumulating evidence that mantle cell lymphoma is a radio-sensitive disease with excellent responses to relatively low radiation doses, even in patients with chemo-refractory disease .

Original languageEnglish (US)
Pages (from-to)474-479
Number of pages6
JournalClinical Lymphoma, Myeloma and Leukemia
Volume14
Issue number6
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

Keywords

  • Chemotherapy
  • In-field response
  • Refractory disease
  • Relapse
  • Site-specific treatment

ASJC Scopus subject areas

  • Hematology
  • Oncology
  • Cancer Research

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