Limited chemotherapy and shrinking field radiotherapy for Osteolymphoma (primary bone lymphoma): results from the trans-Tasman Radiation Oncology Group 99.04 and Australasian Leukaemia and Lymphoma Group LY02 prospective trial

International Journal of Radiation Oncology, Biology, Physics
D R ChristieGary Pratt

Abstract

To establish benchmark outcomes for combined modality treatment to be used in future prospective studies of osteolymphoma (primary bone lymphoma). In 1999, the Trans-Tasman Radiation Oncology Group (TROG) invited the Australasian Leukemia and Lymphoma Group (ALLG) to collaborate on a prospective study of limited chemotherapy and radiotherapy for osteolymphoma. The treatment was designed to maintain efficacy but limit the risk of subsequent pathological fractures. Patient assessment included both functional imaging and isotope bone scanning. Treatment included three cycles of CHOP chemotherapy and radiation to a dose of 45 Gy in 25 fractions using a shrinking field technique. The trial closed because of slow accrual after 33 patients had been entered. Accrual was noted to slow down after Rituximab became readily available in Australia. After a median follow-up of 4.3 years, the five-year overall survival and local control rates are estimated at 90% and 72% respectively. Three patients had fractures at presentation that persisted after treatment, one with recurrent lymphoma. Relatively high rates of survival were achieved but the number of local failures suggests that the dose of radiotherapy should remain higher than it is for o...Continue Reading

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Citations

Aug 27, 2013·International Orthopaedics·Guido ScocciantiRodolfo Capanna
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