不可切除III期非小细胞肺癌诱导化学免疫治疗的疗效及预后分析:单中心回顾性研究
Efficacy and prognostic analysis of induction chemoimmunotherapy in unresectable stage Ⅲ non-small cell lung cancer: a single-center retrospective study.
作者
作者单位
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan Province, China.
- Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan Province, China.
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan Province, China. Electronic address: wanghui@hnca.org.cn.
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China; Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan Province, China. Electronic address: liuhuai@hnca.org.cn.
摘要
中文
诱导化学免疫治疗联合根治性放化疗(CRT)是治疗不可切除III期非小细胞肺癌(NSCLC)的一种有前景的方法。然而,该治疗方案的安全性、疗效和预后标志物仍有待确定。本单中心回顾性队列纳入了2020年1月至2022年10月接受根治性胸部放疗联合免疫检查点抑制剂(ICIs)治疗的不可切除III期NSCLC患者。放疗前接受化学免疫治疗的患者被归类为诱导ICIs(iICIs),放疗后接受免疫治疗的患者为巩固ICIs(cICIs)。主要终点是无进展生存期(PFS)。进行了倾向评分匹配(1:1)。在iICIs组中,放疗前进行了TNM重新分期和基于CT的肿瘤体积评估。在168例接受根治性放疗的患者中(iICIs,n=111;cICIs,n=57),中位随访48.2个月,iICIs组的中位PFS更长(35.6 vs 23.7个月;p=0.035),匹配后仍更长(36.1 vs 22.9个月;p=0.019),而总生存期相似。iICIs组和cICIs组的≥3级肺炎发生率分别为3.6%和5.2%。在iICIs组中,观察到诱导治疗后分期降级(T4:56.3%→14.6%;IIIC期:22.2%→2.9%),中位大体肿瘤体积从101.3 cm3降至32.3 cm3(中位相对减少:60.9%)。诱导后较大的残余肿瘤体积独立预测较短的PFS(HR=2.12;p=0.032),而较大的肿瘤体积减少独立预测较长的PFS(HR=0.38;p=0.002)和OS(HR=0.26;p=0.001)。iICIs与更长的PFS、放疗前明显降期和肿瘤体积减少相关。诱导后体积学提供了独立的预后分层,可为iICIs策略中的个体化决策提供信息。
English
Induction chemoimmunotherapy combined with definitive chemoradiotherapy (CRT) represents a promising approach for unresectable stage III non-small cell lung cancer (NSCLC). Nevertheless, the safety, efficacy, and prognostic markers for this treatment regimen remain to be established. This single-center retrospective cohort included unresectable stage III NSCLC treated with definitive thoracic radiotherapy plus immune checkpoint inhibitors (ICIs) from January 2020 to October 2022. Patients receiving chemo-immunotherapy before radiotherapy were classified as induction ICIs (iICIs), and those receiving immunotherapy after thoracic CRT as consolidation ICIs (cICIs). The primary endpoint was progression-free survival (PFS). Propensity score matching (1:1) was performed. TNM restaging and CT-based tumor volume were assessed before radiotherapy in the iICIs group. Among 168 patients treated with definitive radiotherapy (iICIs, n = 111; cICIs, n = 57), with a median follow-up of 48.2 months, median PFS was longer with iICIs (35.6 vs 23.7 months; p = 0.035) and remained longer after matching (36.1 vs 22.9 months; p = 0.019), while overall survival was similar. Grade ≥ 3 pneumonitis occurred 3.6% and 5.2% in the iICIs and cICIs groups, respectively. In the iICIs group, downstaging after induction therapy was observed (T4: 56.3%→14.6%; stage IIIC: 22.2%→2.9%), with median gross tumor volume reduced from 101.3 to 32.3 cm3 (median relative reduction: 60.9%). Larger post-induction residual tumor volume independently predicted shorter PFS (HR = 2.12; p = 0.032), whereas greater tumor-volume reduction independently predicted longer PFS (HR = 0.38; p = 0.002) and OS (HR = 0.26; p = 0.001). iICIs was associated with longer PFS, substantial pre-radiotherapy downstaging and tumor-volume reduction. Post-induction volumetrics provided independent prognostic stratification and may inform individualized decisions within the iICIs strategy.
分类与指标
- 研究类型
- 临床研究
- 病种
- 肺癌
- JCR 分区
- Q1
- 影响因子
- 5.3
- 新锐分区
- 2区