A prospective phase II study of L-asparaginase- CHOP plus radiation in newly diagnosed extranodal NK/T-cell lymphoma, nasal type.

Abstract

PURPOSE:

To explore the efficacy and safety of L-asparaginase in newly-diagnosed extranodal nature killer (NK)/T -cell lymphoma (ENKTL), we conducted a prospective phase II study of L-asparaginase, cyclophosphamide, vincristine, doxorubicin and dexamethasone (CHOP-L) regimen in combination with radiotherapy.

PATIENTS AND METHODS:

Patients with newly diagnosed ENKTL and an ECOG performance status of 0 to 2 were eligible for enrollment. Treatment included 6-8 cycles of CHOP-L (cyclophosphamide, 750 mg/m(2) day 1; vincristine, 1.4 mg/m(2) day 1 (maximal dose 2 mg), doxorubicin 50 mg/m(2) day 1; dexamethasone 10 mg days 1-8; L-asparaginase 6000 u/m(2) days 2-8). Radiotherapy was scheduled after 4-6 cycles of CHOP-L regimen, depending on stage and primary anatomic site. The primary endpoint was complete response (CR) rate.

RESULTS:

A total of 38 eligible patients were enrolled. The median age was 40.5 years (range, 15 to 71 years). Their clinical characteristics were male to female ratio, 24:14; Ann Arbor stage I, 20; II, 11; III, 3; IV, 4. CR and overall response rates were 81.6% (95% CI, 69.3% to 93.9%) and 84.2%, respectively. With a median follow-up of 25 months, the 2-year overall survival, progression-free survival and disease-free survival rates were 80.1% (95%CI, 73.3% to 86.9%), 81% (95%CI, 74.5% to 87.5%) and 93.6% (95%CI, 89.3% to 97.9%), respectively. The major adverse events were myelosuppression, liver dysfunction, and digestive tract toxicities. Grade 3 to 4 leukopenia and neutropenia were 76.3% and 84.2%, respectively. No treatment-related death was observed.

CONCLUSION:

CHOP-L chemotherapy in combination with radiotherapy is a safe and highly effective treatment for newly diagnosed ENKTL.

• Authors: Ningjing Lin, Yuqin Song, Wen Zheng, Meifeng Tu, Yan Xie, Xiaopei Wang, Lingyan Ping, Zhitao Ying, Chen Zhang, Lijuan Deng, Weiping Liu, Jun Zhu
• Journal: Journal of hematology & oncology (J Hematol Oncol) Vol. 6 Pg. 44 (Jul 01 2013) ISSN: 1756-8722 [Electronic] England
• PMID: 23816178 (Publication Type: Clinical Trial, Phase II, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Vincristine
• Dexamethasone
• Doxorubicin
• Cyclophosphamide
• Asparaginase

Topics

• Adolescent
• Adult
• Aged
• Antineoplastic Combined Chemotherapy Protocols (therapeutic use)
• Asparaginase (administration & dosage)
• Chemoradiotherapy
• Cyclophosphamide (administration & dosage)
• Dexamethasone (administration & dosage)
• Disease-Free Survival
• Doxorubicin (administration & dosage)
• Female
• Humans
• Killer Cells, Natural (pathology)
• Lymphoma, T-Cell (drug therapy, pathology, radiotherapy)
• Male
• Middle Aged
• Nose Neoplasms (drug therapy, pathology, radiotherapy)
• Prospective Studies
• Treatment Outcome
• Vincristine (administration & dosage)
• Young Adult