PMID- 26352533 OWN - NLM STAT- MEDLINE DCOM- 20160920 LR - 20220408 IS - 1556-1380 (Electronic) IS - 1556-0864 (Linking) VI - 10 IP - 11 DP - 2015 Nov TI - EML4-ALK Fusion Detected by RT-PCR Confers Similar Response to Crizotinib as Detected by FISH in Patients with Advanced Non-Small-Cell Lung Cancer. PG - 1546-52 LID - 10.1097/JTO.0000000000000668 [doi] AB - INTRODUCTION: Reverse transcriptase polymerase chain reaction (RT-PCR) assay has been proved to have high sensitivity and specificity to detect anaplastic lymphoma kinase (ALK) rearrangements. The aim of this study was to investigate the response to crizotinib in patients of advanced non-small-cell lung cancer (NSCLC) with ALK rearrangements detected by RT-PCR. METHODS: Only patients with advanced NSCLC who had their ALK rearrangement status detected by RT-PCR were included in this analysis. The utility of RT-PCR and fluorescence in situ hybridization (FISH) assay were compared in patients who were treated with crizotinib based on their positive ALK rearrangements. RESULTS: One thousand ten patients were included in this study. Among them, 104 patients were ALK RT-PCR positive and 53 of them received crizotinib treatment. Among 255 tumors simultaneously analyzed by FISH and RT-PCR, the latter successfully detected all the 25 tumors with arrangements, including two cases that were missed by FISH. The overall response rate and median progression-free survival of the 53 patients with ALK rearrangements who received crizotinib treatment were 60.4% (95% confidence interval [CI], 47.2-73.6) and 8.4 months (95% CI, 6.75-10.05), respectively, which were similar to the 21 patients detected by FISH with overall response rate of 57.1% (95% CI, 33.3-76.2; p = 0.799) and median progression-free survival of 7.4 months (95% CI, 4.43-10.38; p = 0.833) after crizotinib treatment. Interestingly, there were two patients responded to crizotinib had their ALK rearrangement detected by RT-PCR but not FISH. CONCLUSIONS: RT-PCR should be considered as an alternative/supplemental approach to detect ALK fusion oncogene in NSCLC patients who might benefit from crizotinib treatment. FAU - Wang, Yan AU - Wang Y AD - *Department of Medical Oncology, daggerDepartment of Laboratory Medicine, double daggerDepartment of Lung Cancer and Immunology, section signDepartment of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China; ||Department of Hematology & Medical Oncology, Winship Cancer Institute, Emory University School of Medicine, Georgia; and paragraph signDivision of Hematology, Oncology and Blood & Marrow Transplantation, Department of Internal Medicine, Holden Comprehensive Cancer Center, University of Iowa Carver College of Medicine, Iowa City, Iowa. FAU - Zhang, Jun AU - Zhang J FAU - Gao, Guanghui AU - Gao G FAU - Li, Xuefei AU - Li X FAU - Zhao, Chao AU - Zhao C FAU - He, Yayi AU - He Y FAU - Su, Chunxia AU - Su C FAU - Zhang, Shijia AU - Zhang S FAU - Chen, Xiaoxia AU - Chen X FAU - Zhang, Jie AU - Zhang J FAU - Li, Wei AU - Li W FAU - Li, Bing AU - Li B FAU - Zhao, Jing AU - Zhao J FAU - Hou, Likun AU - Hou L FAU - Wu, Chunyan AU - Wu C FAU - Ren, Shengxiang AU - Ren S FAU - Zhou, Caicun AU - Zhou C FAU - Zhang, Jun AU - Zhang J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Thorac Oncol JT - Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer JID - 101274235 RN - 0 (EML4-ALK fusion protein, human) RN - 0 (Oncogene Proteins, Fusion) RN - 0 (Protein Kinase Inhibitors) RN - 0 (Pyrazoles) RN - 0 (Pyridines) RN - 53AH36668S (Crizotinib) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Non-Small-Cell Lung/*drug therapy/mortality/pathology MH - Crizotinib MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Lung Neoplasms/*drug therapy/mortality/pathology MH - Male MH - Middle Aged MH - Oncogene Proteins, Fusion/*genetics/*metabolism MH - Protein Kinase Inhibitors/administration & dosage/*therapeutic use MH - Pyrazoles/administration & dosage/*therapeutic use MH - Pyridines/administration & dosage/*therapeutic use MH - Reverse Transcriptase Polymerase Chain Reaction/*methods MH - Survival Analysis MH - Young Adult EDAT- 2015/09/10 06:00 MHDA- 2016/09/22 06:00 CRDT- 2015/09/10 06:00 PHST- 2015/09/10 06:00 [entrez] PHST- 2015/09/10 06:00 [pubmed] PHST- 2016/09/22 06:00 [medline] AID - S1556-0864(15)35067-X [pii] AID - 10.1097/JTO.0000000000000668 [doi] PST - ppublish SO - J Thorac Oncol. 2015 Nov;10(11):1546-52. doi: 10.1097/JTO.0000000000000668.