{"title":"Rapid Lorlatinib Response in Lung Adenocarcinoma With a Novel Y Chromosome Intergenic ALK Fusion: A Case Report","authors":"Jin-Ming Chen, Yi-Fan Kang, Yue-Can Zeng, Jing-Ru Luo, Shu Lin, Wen-Jun Tang","doi":"10.1016/j.cllc.2026.09.002","DOIUrl":null,"url":null,"abstract":"<div><h3>Clinical Practice Points</h3><div><ul><li><span>•</span><span><div>Unexplained rapid disease progression in young, never-smoker patients with lung adenocarcinoma warrants comprehensive large-panel DNA-NGS to detect atypical actionable driver mutations, especially when routine small-panel testing returns negative.</div></span></li><li><span>•</span><span><div>Atypical, focal, or weak ALK immunohistochemistry (IHC) signals should not be readily dismissed as artifacts; they can serve as early indicators of complex, non-canonical intergenic fusions resulting from cross-chromosomal genomic rearrangements.</div></span></li><li><span>•</span><span><div>The third-generation ALK inhibitor lorlatinib demonstrates profound systemic and intracranial efficacy against non-canonical Y-chromosome intergenic-ALK fusions, highlighting its role as a potent therapeutic option for atypical ALK variants.</div></span></li></ul></div></div><div><ul><li><span>•</span><span><div>Unexplained rapid disease progression in young, never-smoker patients with lung adenocarcinoma warrants comprehensive large-panel DNA-NGS to detect atypical actionable driver mutations, especially when routine small-panel testing returns negative.</div></span></li><li><span>•</span><span><div>Atypical, focal, or weak ALK immunohistochemistry (IHC) signals should not be readily dismissed as artifacts; they can serve as early indicators of complex, non-canonical intergenic fusions resulting from cross-chromosomal genomic rearrangements.</div></span></li><li><span>•</span><span><div>The third-generation ALK inhibitor lorlatinib demonstrates profound systemic and intracranial efficacy against non-canonical Y-chromosome intergenic-ALK fusions, highlighting its role as a potent therapeutic option for atypical ALK variants.</div></span></li></ul></div>","PeriodicalId":10490,"journal":{"name":"Clinical lung cancer","volume":"27 8","pages":"Pages 69-73"},"PeriodicalIF":3.9000,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical lung cancer","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S152573042600121X","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/9/7 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Clinical Practice Points
•
Unexplained rapid disease progression in young, never-smoker patients with lung adenocarcinoma warrants comprehensive large-panel DNA-NGS to detect atypical actionable driver mutations, especially when routine small-panel testing returns negative.
•
Atypical, focal, or weak ALK immunohistochemistry (IHC) signals should not be readily dismissed as artifacts; they can serve as early indicators of complex, non-canonical intergenic fusions resulting from cross-chromosomal genomic rearrangements.
•
The third-generation ALK inhibitor lorlatinib demonstrates profound systemic and intracranial efficacy against non-canonical Y-chromosome intergenic-ALK fusions, highlighting its role as a potent therapeutic option for atypical ALK variants.
•
Unexplained rapid disease progression in young, never-smoker patients with lung adenocarcinoma warrants comprehensive large-panel DNA-NGS to detect atypical actionable driver mutations, especially when routine small-panel testing returns negative.
•
Atypical, focal, or weak ALK immunohistochemistry (IHC) signals should not be readily dismissed as artifacts; they can serve as early indicators of complex, non-canonical intergenic fusions resulting from cross-chromosomal genomic rearrangements.
•
The third-generation ALK inhibitor lorlatinib demonstrates profound systemic and intracranial efficacy against non-canonical Y-chromosome intergenic-ALK fusions, highlighting its role as a potent therapeutic option for atypical ALK variants.
期刊介绍:
Clinical Lung Cancer is a peer-reviewed bimonthly journal that publishes original articles describing various aspects of clinical and translational research of lung cancer. Clinical Lung Cancer is devoted to articles on detection, diagnosis, prevention, and treatment of lung cancer. The main emphasis is on recent scientific developments in all areas related to lung cancer. Specific areas of interest include clinical research and mechanistic approaches; drug sensitivity and resistance; gene and antisense therapy; pathology, markers, and prognostic indicators; chemoprevention strategies; multimodality therapy; and integration of various approaches.