Is There a Role of Oxidative Stress in the Pathophysiology of Bortezomib Induced Peripheral Neuropathy (BIPN) in Multiple Myeloma Patients?
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 1
研究概览
简要总结
Since the pathophysiology of BIPN still remains unclear, in the present study we are going to assess the development of BIPN in newly diagnosed myeloma patients, based on clinical neurological examination and electrophysiological study (EMG) and trying to find out if there is any relationship between oxidative stress generation measured by serum malonyldialdehyde - (MDA) and urinary isoprostane, and the development of BIPN, which can explain important part of the BIPN pathophysiology and can suggest new ideas of treatment and prophylactic strategies of peripheral neuropathy.
详细描述
The proteasome inhibitor bortezomib has shown impressive clinical activity alone and in combination with other novel agents for the treatment of multiple myeloma (MM).
Peripheral neuropathy is a significant dose limiting toxicity of bortezomib, which typically occurs within the first treatment cycles with bortezomib, reaching plateau around cycle 5, and does not appear to increase thereafter.
Although bortezomib is known to be selective proteasome inhibitor, the mechanisms of cytotoxicity are poorly understood.
It has been theoretically hypothesized that bortezomib abrogates the degradation of I-kB, which blocks the transcriptional activity of NF-kB, however, recent studies demonstrated that bortezomib elicits activation of multiple pathways in cancer cells, such as reactive oxygen species (ROS) pathway.
The involvement of oxidative stress is supported by emerging studies showing that ROS generation plays a critical role in the initiation of the bortezomib induced apoptotic cascade.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •A total of 30 newly diagnosed patients (age > 18 years) with multiple myeloma (stage3 Durie and Salmon, ECOG-performance status <2), who are candidates for bortezomib therapy will be enrolled in the study (duration of the study 6 months).
排除标准
- •Patients with relapsed or progressive multiple myeloma.
- •Performance status >
- •Prior treatment with neuropathic agents such as Oncovin and thalidomide.