{"title":"BRAF v600e突变晚期非小细胞肺癌患者的小细胞转化","authors":"Thanakorn Charoenthanadhol, Nipon Chaisuriya, Siraphong Putraveephong","doi":"10.1136/bcr-2024-262278","DOIUrl":null,"url":null,"abstract":"<p><p>Non-small cell lung cancer (NSCLC) with a BRAF V600E mutation is rare and associated with a worse prognosis compared with wild-type BRAF. The first-line treatment options include a combination of a BRAF inhibitor and a MEK inhibitor or immunotherapy with or without chemotherapy. Unlike advanced NSCLC with common EGFR mutations or ALK rearrangements, the mechanisms of resistance are poorly understood. We report a case of small cell transformation after treatment with a BRAF inhibitor and a MEK inhibitor, which illustrates one potential resistance mechanism. We extrapolated therapeutic data from de novo small cell lung cancer to this case. However, the outcome was unsatisfactory.</p>","PeriodicalId":9080,"journal":{"name":"BMJ Case Reports","volume":"18 3","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Small cell transformation in a patient with BRAF V600E-mutated advanced non-small cell lung cancer.\",\"authors\":\"Thanakorn Charoenthanadhol, Nipon Chaisuriya, Siraphong Putraveephong\",\"doi\":\"10.1136/bcr-2024-262278\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Non-small cell lung cancer (NSCLC) with a BRAF V600E mutation is rare and associated with a worse prognosis compared with wild-type BRAF. The first-line treatment options include a combination of a BRAF inhibitor and a MEK inhibitor or immunotherapy with or without chemotherapy. Unlike advanced NSCLC with common EGFR mutations or ALK rearrangements, the mechanisms of resistance are poorly understood. We report a case of small cell transformation after treatment with a BRAF inhibitor and a MEK inhibitor, which illustrates one potential resistance mechanism. We extrapolated therapeutic data from de novo small cell lung cancer to this case. However, the outcome was unsatisfactory.</p>\",\"PeriodicalId\":9080,\"journal\":{\"name\":\"BMJ Case Reports\",\"volume\":\"18 3\",\"pages\":\"\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2025-03-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"BMJ Case Reports\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1136/bcr-2024-262278\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MEDICINE, GENERAL & INTERNAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMJ Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1136/bcr-2024-262278","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
Small cell transformation in a patient with BRAF V600E-mutated advanced non-small cell lung cancer.
Non-small cell lung cancer (NSCLC) with a BRAF V600E mutation is rare and associated with a worse prognosis compared with wild-type BRAF. The first-line treatment options include a combination of a BRAF inhibitor and a MEK inhibitor or immunotherapy with or without chemotherapy. Unlike advanced NSCLC with common EGFR mutations or ALK rearrangements, the mechanisms of resistance are poorly understood. We report a case of small cell transformation after treatment with a BRAF inhibitor and a MEK inhibitor, which illustrates one potential resistance mechanism. We extrapolated therapeutic data from de novo small cell lung cancer to this case. However, the outcome was unsatisfactory.
期刊介绍:
BMJ Case Reports is an important educational resource offering a high volume of cases in all disciplines so that healthcare professionals, researchers and others can easily find clinically important information on common and rare conditions. All articles are peer reviewed and copy edited before publication. BMJ Case Reports is not an edition or supplement of the BMJ.