Decitabine of reduced dosage in Chinese patients with myelodysplastic syndrome: a retrospective analysis.

Abstract

Decitabine has been approved for the treatment of all subtypes of myelodysplastic syndrome (MDS). However, the optimal regimen for decitabine treatment is not well established. In this study, an observational, retrospective and multi-center analysis was performed to explore the decitabine schedule for the treatment of MDS. A total of 79 patients received reduced dosage decitabine treatment (15 mg/M2/day intravenously for five consecutive days every four weeks). Fifty-three out of the 79 patients were defined as intermediate-2/high risk by international prognostic scoring system (IPSS) risk category. 67.1% of MDS patients achieved treatment response including complete response (CR) (n = 23), Partial response (n = 1), marrow CR (mCR) with hematological improvement (HI) (n = 11), mCR without HI (n = 11) and HI alone (n = 7) with a median of 4 courses (range 1-11). The median overall survival (OS) was 18.0 months. The median OS was 22.0, 17.0 and 12.0 months in the patients with CR, those with other response, and those without response, respectively. In addition, this regimen contributed to zero therapy-related death and punctual course delivery, although III or IV grade of cytopenia was frequently observed. In conclusion, the 15 mg/M2/d×5 day decitabine regimen was effective and safe for Chinese MDS patients with IPSS score of 0.5 or higher.

• Authors: Xiao Li, Qiang Song, Yu Chen, Chunkang Chang, Dong Wu, Lingyun Wu, Jiying Su, Xi Zhang, Liyu Zhou, Luxi Song, Zheng Zhang, Feng Xu, Ming Hou
• Journal: PloS one (PLoS One) Vol. 9 Issue 4 Pg. e95473 ( 2014) ISSN: 1932-6203 [Electronic] United States
• PMID: 24748149 (Publication Type: Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't)

Chemical References

• Antimetabolites, Antineoplastic
• Cyclin-Dependent Kinase Inhibitor p15
• Decitabine
• Azacitidine

Topics

• Adult
• Aged
• Aged, 80 and over
• Antimetabolites, Antineoplastic (administration & dosage, adverse effects)
• Asian People
• Azacitidine (administration & dosage, adverse effects, analogs & derivatives)
• China
• Cyclin-Dependent Kinase Inhibitor p15 (metabolism)
• Decitabine
• Female
• Humans
• Male
• Middle Aged
• Myelodysplastic Syndromes (diagnosis, drug therapy, mortality)
• Retrospective Studies
• Treatment Outcome