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Lancet Oncol:放疗可推迟寡转移肾细胞癌的系统治疗时间

2021-11-04 Nebula MedSci原创

序贯放疗可能有助于推迟系统治疗的开始,并可能允许特定寡转移性肾细胞癌患者持续中断系统治疗

肾细胞癌是一种临床异质性的恶性肿瘤,多广泛转移,进展迅速。寡转移的患者,多表现为钝性的临床病程。对于临床有少量转移部位的患者(即寡转移性疾病),明确的局部转移控制是一种选择,可以延迟甚至消除对系统治疗的需要。放疗在转移性肾细胞癌中的作用存在争议。该研究前瞻性地测试了放疗推迟寡转移性肾细胞癌患者全身治疗的可行性和有效性。

这是一项单臂、2期的可行性试验,招募了年满18岁的、转移病灶不超过5个的、ECOG表现状态0-2分、既往系统治疗≤1次的肾细胞癌患者。患者接受全身立体定向放疗(定义为≤5次,每次≥7 Gy)对所有病灶进行治疗,并暂停系统治疗。当病变位置排除安全立体定向放疗时,患者接受大分割调强放疗方案(60-70 Gy,分10次或52.5-67.5 Gy分15次)。主要终点是该治疗方案的可行性和无进展生存期。

无进展生存期

2018年7月13日至2020年9月18日期间,共招募了30位患者(6位[20%]女性)。所有患者都是透明细胞癌,在入组前均接受了肾脏切除术。所有患者至少完成了一轮放疗,计划外休息时间少于 7 天。中位随访了17.5个月,中位无进展生存期为22.7个月(95% CI 10.4-未达到),一年无进展生存率为64%(95% CI 48-85)。3位(10%)患者发生了严重的副反应:2例3级(背痛和肌无力)和1例3级(高血糖)副反应。无治疗相关死亡。

无系统治疗生存期

综上所述,序贯放疗可能有助于推迟系统治疗的开始,并可能允许特定寡转移性肾细胞癌患者持续中断系统治疗

原始出处:

Chad Tang, et al. Definitive radiotherapy in lieu of systemic therapy for oligometastatic renal cell carcinoma: a single-arm, single-centre, feasibility, phase 2 trial. The Lancet Oncology. October 27, 2021. https://doi.org/10.1016/S1470-2045(21)00528-3

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    2022-01-14 howi
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    2022-07-13 minlingfeng
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