在瘤学中实施药物遗传学测试:DPYD指导的剂量,以防止不列颠哥伦比亚省的胺毒性
Angela Wu1,2, Helen Anderson3, Curtis Hughesman4
1Department of Experimental Medicine, University of British Columbia, Vancouver, BC, Canada.
Frontiers in pharmacology
|September 25, 2023
概括
通过指导化疗剂量,DPYD基因定型有助于预防严重的胺毒性. 携带DPYD变异的携带者从剂量调整中受益,尽管仔细监测对于患者安全至关重要.
科学领域:
- 药物基因组学 药物基因组学
- 临床化学 临床化学
- 在瘤学瘤学.
背景情况:
- 甲胺的化疗毒性与二甲胺脱酶 (DPD) 酶变异有关.
- DPYD基因基因定型允许个性化剂量,以减轻毒性并保持疗效.
- DPD 缺乏是皮里米丁治疗期间发生严重不良事件的重要危险因素.
研究的目的:
- 在临床环境中实施和评估多重QPCR试验,用于DPYD基因定型.
- 评估DPYD指导剂量调整对胺毒性发生率的影响.
- 确定DPYD测试在常规癌症患者护理中的可行性和接受性.
主要方法:
- 为六种DPYD变体开发多重QPCR试验.
- 对接受胺的患者进行前性和后性测试.
- 对DPYD变异载体进行剂量调整,并比较载体和非载体之间的毒性率.
主要成果:
- 在测试的186名患者中,有14名患者是异构卵性DPYD变体的携带者.
- 携带DPYD变异的携带者经历了较高的严重 (等级≥3) 甲胺毒性.
- 即使降低了剂量,22%的变种携带者有严重的毒性,强调需要严格遵守指南.
结论:
- 以DPYD为指导的剂量降低是预防DPYD变体载体严重毒性的可行和有效策略.
- 密切监测和遵守推剂量降低是必不可少的,因为一些变种载体仍然存在毒性.
- 在成功的试点阶段之后,在不列颠哥伦比亚省全省实施DPYD基因型鉴定.
相关概念视频
Combination Therapies and Personalized Medicine
4.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
4.9K
Targeted Cancer Therapies
7.7K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.7K


