对阿帕胺用于中等风险前列腺癌和分子相关物质的II期试验
Andrew W Hahn1, Ganiraju C Manyam2, Brian F Chapin3
1Division of Cancer Medicine, Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
BJU international
|June 5, 2024
概括
手术前的阿帕胺并没有降低中等风险前列腺癌的辐射风险. 然而,分子分析揭示了与不良结果和复发相关的途径,表明了未来的研究方向.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 泌尿生殖系统癌症研究
背景情况:
- 中期风险前列腺癌 (IRPCa) 管理通常涉及平衡治疗疗效与潜在副作用.
- 新辅助性雄激素剥夺疗法 (ADT) 正在探索改善手术结果,但其对放射治疗风险的影响需要评估.
- 阿帕胺是一种强大的雄激素受体抑制剂,已在晚期前列腺癌中表现出有效性.
研究的目的:
- 评估6个月的新辅助阿帕胺是否降低了中等风险前列腺癌患者的术后放射治疗风险.
- 研究前列腺瘤中的分子变化与临床结果之间的关联,包括不良的病理特征和生化复发 (BCR).
主要方法:
- 一个单臂II期临床试验,涉及40名中等风险前列腺癌患者.
- 患者接受了6个月的阿帕胺 (240毫克/天),随后进行了急性前列腺切除术 (RP).
- 主要终点:不良病理特征的存在 (ypT3,ypN1,正边缘). 翻译研究分析了DNA和RNA的改变和蛋白质的表达.
主要成果:
- 在非选择的IRPCa患者中,手术前的阿帕胺未达到降低术后放射治疗风险的预定义值.
- 40%的患者在RP时表现出不良的病理特征;三年BCR率为15%.
- 在转移性前列腺癌中常见的基因组变化不足. 细胞循环和氧化酸化途径的表达增加与不良特征和BCR相关.
结论:
- 六个月的新辅助阿帕胺没有显著降低中等风险前列腺癌患者的术后放射治疗风险.
- 转录组分析确定了与不良病理结果和BCR相关的失调路径 (细胞循环,氧化酸化).
- 对新辅助疗法的进一步研究是有必要的,特别是对于高风险的前列腺癌患者.
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