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- Title
Effectiveness of gemcitabine, pegaspargase, cisplatin, and dexamethasone (DDGP) combination chemotherapy in the treatment of relapsed/refractory extranodal NK/T cell lymphoma: a retrospective study of 17 patients.
- Authors
Zhou, Zhiyuan; Li, Xiang; Chen, Changying; Li, Xin; Zhang, Lei; Li, Ling; Wang, Xinhua; Ma, Wang; Fu, Xiaorui; Wu, Jingjing; Sun, Zhenchang; Zhang, Xudong; Li, Zhaoming; Yan, Jiaqin; Chang, Yu; Lu, Lisha; Qin, Beibei; Li, Xiaoli; Wen, Jianguo; Zhang, Mingzhi
- Abstract
The prognosis of extranodal nature killer (NK)/T cell lymphoma (ENKL) is dismal because of its aggressive course and multidrug resistance. Currently, for patients with relapsed/refractory ENKL, l-asparaginase-based regimens such as l-asparaginase, ifosfamide, methotrexate, etoposide, and dexamethasone (SMILE) or l-asparaginase, methotrexate, and dexamethasone (AspaMetDex) are recommended. We retrospectively investigated the efficacy and safety of gemcitabine, pegaspargase, cisplatin, and dexamethasone (DDGP) combination chemotherapy in the treatment of 17 relapsed/refractory ENKL patients. Clinical data from these patients were collected and analyzed. The primary end point was overall response rate (ORR). All patients were subjected to 2 to 6 cycles of DDGP chemotherapy, and the median number of cycles of DDGP regimen administrated was four. The ORR was 88.2 % (15/17), with nine patients (52.9 %) achieved complete response (CR) and six patients (35.3 %) achieved partial response (PR). The median follow-up time was 17 months (range 2-28 months). The 1-year overall survival (OS) rate and 1-year progression-free survival (PFS) were 82.4 and 64.7 %, respectively. For those CR responders, the median PFS was 17 months. Grade 3/4 neutropenia occurred in nine patients (52.9 %) and grade 3/4 thrombocytopenia occurred in six patients (35.3 %). DDGP combination chemotherapy produces favorable outcomes in relapsed/refractory ENKL, and more attention should be paid to treatment-related myelosuppression. Further prospective trials are expected to define the efficacy.
- Subjects
DRUG efficacy; COMBINATION drug therapy; CANCER chemotherapy; MULTIDRUG resistance; LYMPHOMAS; HEMATOLOGICAL oncology
- Publication
Annals of Hematology, 2014, Vol 93, Issue 11, p1889
- ISSN
0939-5555
- Publication type
Article
- DOI
10.1007/s00277-014-2136-7