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ABSTRACT: Background
Combination chemotherapy consisting of ifosfamide, methotrexate, etoposide, and prednisolone (IMEP) was active as first-line and second-line treatment for extranodal natural killer/T-cell lymphoma (NTCL).Methods
Forty-four patients with chemo-naïve stage I/II NTCL were enrolled in a prospective, multicenter, phase II study and received six cycles of IMEP (ifosfamide 1.5 g/m(2) on days 1-3; methotrextate 30 mg/m(2) on days 3 and 10; etoposide 100 mg/m(2) on days 1-3; and prednisolone 60 mg/m(2) per day on days 1-5) followed by involved field radiotherapy (IFRT).Results
Overall response rates were 73% (complete remission [CR] in 11 of 41 evaluable patients [27%]) after IMEP chemotherapy and 78% (CR 18 of 27 evaluable patients [67%]) after IMEP followed by IFRT. Neutropenia and thrombocytopenia were documented in 33 patients (75%) and 7 patients (16%), respectively. Only 8 patients (18%) experienced febrile neutropenia. Three-year progression-free survival (PFS) and overall survival (OS) were 66% and 56%, respectively. High Ki-67 (?70%) and Ann Arbor stage II independently reduced PFS (p = .004) and OS (p = .001), respectively.Conclusion
Due to the high rate of progression during IMEP chemotherapy, IFRT needs to be introduced earlier. Moreover, active chemotherapy including an l-asparaginase-based regimen should be use to reduce systemic treatment failure in stage I/II NTCL.
SUBMITTER: Kim TM
PROVIDER: S-EPMC4221378 | biostudies-literature | 2014 Nov
REPOSITORIES: biostudies-literature
Kim Tae Min TM Kim Dong-Wan DW Kang Yoon-Koo YK Chung Jooseop J Song Hong-Suk HS Kim Hyo Jung HJ Kim Byung Soo BS Lee Jong-Seok JS Kim Hawk H Yang Sung Hyun SH Yuh Young Jin YJ Bae Sung Hwa SH Hyun Myung Soo MS Jeon Yoon Kyung YK Kim Chul Woo CW Heo Dae Seog DS
The oncologist 20141003 11
<h4>Background</h4>Combination chemotherapy consisting of ifosfamide, methotrexate, etoposide, and prednisolone (IMEP) was active as first-line and second-line treatment for extranodal natural killer/T-cell lymphoma (NTCL).<h4>Methods</h4>Forty-four patients with chemo-naïve stage I/II NTCL were enrolled in a prospective, multicenter, phase II study and received six cycles of IMEP (ifosfamide 1.5 g/m(2) on days 1-3; methotrextate 30 mg/m(2) on days 3 and 10; etoposide 100 mg/m(2) on days 1-3; an ...[more]