前列腺癌中的光子与质子低分化:系统性审查和元分析
Giulia Corrao1, Giulia Marvaso1, Federico Mastroleo1
1Division of Radiation Oncology, European Institute of Oncology IRCCS, Milan, Italy; Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy.
概括
质子疗法 (PT) 对前列腺癌 (PCa) 治疗有前途,与光子疗法 (XRT) 相比,提供更低的胃肠道毒性和更好的生存率. 需要进一步的随机对照试验来确认PCa患者的这些益处.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
背景情况:
- 对于局部和局部晚期前列腺癌 (PCa) 的低分离质子疗法 (PT) 存在有限的高水平证据.
- 需要进行系统性审查,以比较PT与光子疗法 (XRT) 对PCa的毒性和有效性.
研究的目的:
- 系统地审查和比较 hypofractionated PT 和 XRT 的毒性和有效性,以治疗 PCa.
- 评估PT和XRT之间的瘤结果和生殖尿道 (GU) 或胃肠道 (GI) 毒性.
主要方法:
- 在PubMed,Embase和Cochrane图书馆进行系统的文献搜索,截至2022年4月.
- 包括患有PCa的男性接受治疗性低分离RT (PT或XRT).
- 主要结局:等级≥2急性/晚期GU或GI毒性. 二级结局:无复发5年生存率 (b-RFS),无临床复发,无远程转移,以及前列腺癌特异性生存率.
主要成果:
- 包括160项研究. 与XRT相比,PT手臂的G≥2急性GI发病率明显较低 (2%vs7%).
- 在PT手臂中改善了5年的b-RFS (95%与91%相比).
- 在5年b-RFS中,PT的益处在中度低分离和中度/低风险患者中保持. 对于其他结果没有显著差异.
结论:
- 质子疗法 (PT) 在局部性前列腺癌 (PCa) 治疗中似乎是安全有效的.
- 进一步的随机对照试验 (RCT) 是必要的,以建立强有力的证据.
- 确定最有可能从PT中受益的患者子组需要进一步调查.
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