PMID- 37482500 OWN - NLM STAT- MEDLINE DCOM- 20231124 LR - 20240410 IS - 1938-0690 (Electronic) IS - 1525-7304 (Linking) VI - 24 IP - 8 DP - 2023 Dec TI - Efficacy of Tyrosine Kinase Inhibitors in Primary Driver-Gene-Positive Combined Small-Cell Lung Cancer: A Retrospective Study. PG - 717-725.e1 LID - S1525-7304(23)00140-7 [pii] LID - 10.1016/j.cllc.2023.07.001 [doi] AB - BACKGROUND: Combined small-cell lung cancer (c-SCLC) with gene mutations is a rare subtype often found alongside adenocarcinoma. Targeted therapy may be effective because of the presence of specific molecular targets. However, due to its rarity and unconventional genetic testing, the efficacy remains uncertain. METHODS: A total of 31 c-SCLC patients with gene mutations were retrospectively included and grouped according to their treatment regimens. Treatment outcomes were evaluated. Kaplan-Meier method was used for survival analysis, with Log Rank test applied for comparison between groups. RESULTS: We divided the 31 patients into 3 groups according to first-line treatment: group A (chemotherapy, n = 16), group B (targeted monotherapy, n = 7), and group C (targeted combination therapy, n = 8). The overall response rates (ORR) were 43.8%, 42.9%, and 62.5%. The disease control rates (DCR) were 87.5%, 85.7%, and 100%. The median progression-free survival (PFS) was 4.0, 5.0, and 7.93 months (P = .024), with a significant difference between group A and C (P = .010). The median overall survival (OS) was 14.10, 17.43, and 12.93 months (P = .313). Seven patients in group A received targeted therapy in later-line. Of the total 22 patients received targeted monotherapy or combination therapy, the ORR and DCR were 54.5% and 90.9%. The median PFS and OS were 5.87 and 17.30 months. Additionally, adverse events (AEs) occurred in 53.8% and 88.9% of monotherapy and combination therapy. The most common AEs in monotherapy were elevated transaminases (23.1%) and in combination anemia (66.7%). CONCLUSIONS: TKIs showed encouraging efficacy in driver-gene-positive c-SCLC. While monotherapy may be a supplementary option, combination with chemotherapy appears to be preferable and superior. CI - Copyright (c) 2023. Published by Elsevier Inc. FAU - Shi, Zheng AU - Shi Z AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China; Wenzhou Medical University, Wenzhou, China. FAU - Wei, Jingwen AU - Wei J AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China; Wenzhou Medical University, Wenzhou, China. FAU - Sun, Wei AU - Sun W AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China; Wenzhou Medical University, Wenzhou, China. FAU - Zeng, Xiaohong AU - Zeng X AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China; Wenzhou Medical University, Wenzhou, China. FAU - Zhou, Huan AU - Zhou H AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China; Zhejiang Chinese Medical University, Hangzhou, China. FAU - Song, Zhengbo AU - Song Z AD - Department of Clinical Trial, Zhejiang Cancer Hospital, Hangzhou, China. Electronic address: songzb@zjcc.org.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230705 PL - United States TA - Clin Lung Cancer JT - Clinical lung cancer JID - 100893225 RN - 0 (Tyrosine Kinase Inhibitors) SB - IM MH - Humans MH - *Lung Neoplasms/drug therapy/genetics/pathology MH - *Carcinoma, Non-Small-Cell Lung/drug therapy/genetics/pathology MH - Retrospective Studies MH - Tyrosine Kinase Inhibitors MH - *Small Cell Lung Carcinoma/drug therapy/genetics OTO - NOTNLM OT - Adverse event OT - Clinical outcome OT - Gene mutation OT - Rare cancer OT - Targeted therapy COIS- Disclosure All authors declare no conflict of interest. EDAT- 2023/07/24 00:41 MHDA- 2023/11/24 06:42 CRDT- 2023/07/23 22:00 PHST- 2023/05/04 00:00 [received] PHST- 2023/06/27 00:00 [revised] PHST- 2023/07/02 00:00 [accepted] PHST- 2023/11/24 06:42 [medline] PHST- 2023/07/24 00:41 [pubmed] PHST- 2023/07/23 22:00 [entrez] AID - S1525-7304(23)00140-7 [pii] AID - 10.1016/j.cllc.2023.07.001 [doi] PST - ppublish SO - Clin Lung Cancer. 2023 Dec;24(8):717-725.e1. doi: 10.1016/j.cllc.2023.07.001. Epub 2023 Jul 5.