PMID- 37298023 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230612 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 12 IP - 11 DP - 2023 Jun 2 TI - Real-World Efficacy and Safety of Thoracic Radiotherapy after First-Line Chemo-Immunotherapy in Extensive-Stage Small-Cell Lung Cancer. LID - 10.3390/jcm12113828 [doi] LID - 3828 AB - (1) Background: At present, the efficacy and safety of thoracic radiotherapy (TRT) after chemo-immunotherapy (CT-IT) in patients with extensive-stage small-cell lung cancer (ES-SCLC) still remain unclear. The purpose of this study was to evaluate the role of TRT after CT-IT in patients with ES-SCLC. (2) Methods: From January 2020 to October 2021, patients with ES-SCLC treated with first-line anti-PD-L1 antibody plus platinum-etoposide chemotherapy were enrolled retrospectively. The survival data and adverse events data of patients treated with or without TRT after CT-IT were collected for analysis. (3) Results: A total of 118 patients with ES-SCLC treated with first-line CT-IT were retrospectively enrolled, with 45 patients with TRT and 73 patients without TRT after CT-IT. The median PFS and OS in the CT-IT + TRT group and CT-IT only group were 8.0 months versus 5.9 months (HR = 0.64, p = 0.025) and 22.7 months versus 14.7 months (HR = 0.52, p = 0.015), respectively. The median PFS and OS in all 118 patients treated with first-line CT-IT were 7.2 and 19.8 months with an ORR of 72.0%. In multivariate analyses, liver metastasis and response to CT-IT were shown to be independent prognostic factors of PFS (p < 0.05), while liver metastasis and bone metastasis were independent predictive factors of OS (p < 0.05). Although TRT was significantly associated with better PFS and OS in univariate analysis, the association of TRT and OS failed to reach statistical significance (HR = 0.564, p = 0.052) in multivariate analysis. There was no significant difference in adverse events (AEs) between two treatment groups (p = 0.58). (4) Conclusions: ES-SCLC patients treated with TRT after first-line CT-IT had prolonged PFS and OS with an acceptable safety profile. Further prospective randomized studies are necessary to explore the efficacy and safety of this treatment modality for ES-SCLC in future. FAU - Xie, Zhaoliang AU - Xie Z AD - Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Science, Jinan 250117, China. FAU - Liu, Jingru AU - Liu J AD - Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong University Cancer Center, Jinan 250117, China. FAU - Wu, Min AU - Wu M AD - Suzhou Cancer Center Core Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou 215000, China. FAU - Wang, Xiaohan AU - Wang X AD - Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Science, Jinan 250117, China. FAU - Lu, Yuhan AU - Lu Y AD - Department of Emergency Medicine, The First People's Hospital of Neijiang, Neijiang 641099, China. FAU - Han, Chunyan AU - Han C AD - Department of Radiotherapy, The Third Affiliated Hospital of Shandong First Medical University, Jinan 250031, China. FAU - Cong, Lei AU - Cong L AD - Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250117, China. FAU - Li, Jisheng AU - Li J AUID- ORCID: 0000-0002-4186-6228 AD - Department of Medical Oncology, Qilu Hospital of Shandong University, Jinan 250012, China. FAU - Meng, Xue AU - Meng X AD - Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Science, Jinan 250117, China. LA - eng GR - 2019KJL001/Science and Technology Support Plan for Youth Innovation Teams of Universities in Shandong Province/ GR - flzh202106/Bethune . Translational Medicine Research Foundation for Tumor Radiotherapy/ GR - 81972864 and 82172720/National Natural Science Foundation of China/ PT - Journal Article DEP - 20230602 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC10253710 OTO - NOTNLM OT - adverse event OT - chemo-immunotherapy (CT-IT) OT - extensive-stage small-cell lung cancer (ES-SCLC) OT - survival OT - thoracic radiotherapy (TRT) COIS- The authors declared that there was no conflict of interest regarding the publication of this paper. EDAT- 2023/06/10 15:13 MHDA- 2023/06/10 15:14 PMCR- 2023/06/02 CRDT- 2023/06/10 01:10 PHST- 2023/02/08 00:00 [received] PHST- 2023/05/04 00:00 [revised] PHST- 2023/05/22 00:00 [accepted] PHST- 2023/06/10 15:14 [medline] PHST- 2023/06/10 15:13 [pubmed] PHST- 2023/06/10 01:10 [entrez] PHST- 2023/06/02 00:00 [pmc-release] AID - jcm12113828 [pii] AID - jcm-12-03828 [pii] AID - 10.3390/jcm12113828 [doi] PST - epublish SO - J Clin Med. 2023 Jun 2;12(11):3828. doi: 10.3390/jcm12113828.