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Lu C, Wei XW, Wang Z, Zhou Z, Liu YT, Zheng D, He Y, Xie ZH, Li Y, Zhang Y, Zhang YC, Huang ZJ, Mei SQ, Liu JQ, Guan XH, Deng Y, Chen ZH, Tu HY, Xu CR, Chen HJ, Zhong WZ, Yang JJ, Zhang XC, Mok TSK, Wu YL, Zhou Q. Allelic Context of EGFR C797X-Mutant Lung Cancer Defines Four Subtypes With Heterogeneous Genomic Landscape and Distinct Clinical Outcomes. J Thorac Oncol 2024; 19:601-612. [PMID: 37981218 DOI: 10.1016/j.jtho.2023.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/18/2023] [Accepted: 11/15/2023] [Indexed: 11/21/2023]
Abstract
INTRODUCTION EGFR C797X (C797S or C797G) mutation is the most frequent on-target mechanism of resistance to osimertinib. The hypothesis that the allelic context of C797X/T790M has implications for treatment is on the basis of sporadic reports and needs validation with larger cohorts. METHODS We identified patients with EGFR C797X-mutant NSCLC from nine centers who progressed on osimertinib, all analyzed in a single laboratory through next-generation sequencing. We analyzed genomic profiles and assessed associations between clinical outcomes and C797X status. RESULTS A total of 365 EGFR C797X-mutant cases were categorized into four subtypes on the basis of allelic context: in cis (75.3%), in trans (6.4%), cis&trans (10.4%), and C797X-only (7.9%). Genomically, the cis&trans subtype displayed the highest frequency of concurrent alterations at osimertinib resistance sites (21.1%), while the in cis subtype had the lowest (8.4%). Clinically, cis&trans patients exhibited the worst progression-free survival (PFS) on both previous (median 7.7 mo) and subsequent treatment (median 1.0 mo) and overall survival (median 3.9 mo). In subsequent treatments, in cis patients exhibited superior PFS with combined brigatinib and cetuximab (median 11.0 mo) compared with other regimens (p = 0.005), while in trans patients exhibited variable outcomes with combined first or second- and third-generation EGFR inhibitor (PFS range: 0.7-8.1 mo, median 2.6 mo). Notably, subtype switching was observed after subsequent treatments, predominantly toward the in cis subtype. CONCLUSIONS Allelic context could define four EGFR C797X-mutant NSCLC subtypes with heterogeneous genetic landscapes and distinct clinical outcomes. Subsequent treatments further complicate the scenario through subtype switching.
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Affiliation(s)
- Chang Lu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Xue-Wu Wei
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Zhen Wang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Zhen Zhou
- Shanghai Chest Hosptial, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Yu-Tao Liu
- Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Di Zheng
- Shanghai Pulmonary Hospital and Thoracic Cancer Institute, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Yong He
- Department of Respiratory Medicine, Daping Hospital, Army Medical University, Chongqing, People's Republic of China
| | - Zhan-Hong Xie
- National Center for Respiratory Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Health, Guangzhou, People's Republic of China
| | - Yong Li
- Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, People's Republic of China
| | - Yan Zhang
- The Fourth Department of Oncology, People's Hospital of Shijiazhuang City, Shijiazhuang, People's Republic of China
| | - Yi-Chen Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Zi-Jian Huang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Shi-Qi Mei
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Jia-Qi Liu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Xu-Hui Guan
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Yu Deng
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Zhi-Hong Chen
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Hai-Yan Tu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Chong-Rui Xu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Hua-Jun Chen
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Wen-Zhao Zhong
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Jin-Ji Yang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Xu-Chao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Tony S K Mok
- State Key Laboratory of Translational Oncology, Department of Clinical Oncology, Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Yi-Long Wu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China; Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Qing Zhou
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China.
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Faisal Hamdi AI, How SH, Islam MK, Lim JCW, Stanslas J. Adaptive therapy to circumvent drug resistance to tyrosine kinase inhibitors in cancer: is it clinically relevant? Expert Rev Anticancer Ther 2022; 22:1309-1323. [PMID: 36376248 DOI: 10.1080/14737140.2022.2147671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Cancer is highly adaptable and is constantly evolving against current targeted therapies such as tyrosine kinase inhibitors. Despite advances in recent decades, the emergence of drug resistance to tyrosine kinase inhibitors constantly hampers therapeutic efficacy of cancer treatment. Continuous therapy versus intermittent clinical regimen has been a debate in drug administration of cancer patients. An ecologically-inspired shift in cancer treatment known as 'adaptive therapy' intends to improve the drug administration of drugs to cancer patients that can delay emergence of drug resistance. AREAS COVERED We discuss improved understanding of the concept of drug resistance, the basis of continuous therapy, intermittent clinical regimens, and adaptive therapy will be reviewed. In addition, we discuss how adaptive therapy provides guidance for future cancer treatment. EXPERT OPINION The current understanding of drug resistance in cancer leads to poor prognosis and limited treatment options in patients. Fighting drug resistance mutants is constantly followed by new forms of resistance. In most reported cases, continuous therapy leads to drug resistance and an intermittent clinical regimen vaguely delays it. However, adaptive therapy, conceptually, exploits multiple parameters that can suppress the growth of drug resistance and provides safe treatment for cancer patients in the future.
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Affiliation(s)
- Amir Imran Faisal Hamdi
- Pharmacotherapeutics Unit, Department of Medicine, Universiti Putra MalaysiaMedicine, 43400, Serdang, Malaysia
| | - Soon Hin How
- Kuliyyah of Medicine, International Islamic University Malaysia, Kuantan Campus, Kuliyyah of Medicine, 25200, Kuantan, Malaysia
| | | | - Jonathan Chee Woei Lim
- Pharmacotherapeutics Unit, Department of Medicine, Universiti Putra MalaysiaMedicine, 43400, Serdang, Malaysia
| | - Johnson Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Universiti Putra MalaysiaMedicine, 43400, Serdang, Malaysia
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Pizzutilo EG, Pedrani M, Amatu A, Ruggieri L, Lauricella C, Veronese SM, Signorelli D, Cerea G, Giannetta L, Siena S, Sartore-Bianchi A. Liquid Biopsy for Small Cell Lung Cancer either De Novo or Transformed: Systematic Review of Different Applications and Meta-Analysis. Cancers (Basel) 2021; 13:2265. [PMID: 34066817 PMCID: PMC8125928 DOI: 10.3390/cancers13092265] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/02/2021] [Accepted: 05/03/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The potential added value of liquid biopsy (LB) is not well determined in the case of small cell lung cancer (SCLC), an aggressive tumor that can occur either de novo or from the histologic transformation of non-small cell lung cancer (NSCLC). METHODS A systematic review of studies adopting LB in patients with SCLC have been performed to assess the clinical utility of circulating tumor DNA (ctDNA) or circulating tumor cells (CTCs). RESULTS After a screening of 728 records, 62 studies (32 evaluating CTCs, 27 ctDNA, and 3 both) met predetermined eligibility criteria. Only four studies evaluated LB in the diagnostic setting for SCLC, while its prognostic significance was evaluated in 38 studies and prominently supported by both ctDNA and CTCs. A meta-analysis of 11 studies as for CTCs enumeration showed an HR for overall survival of 2.63 (1.71-4.05), with a potential publication bias. The feasibility of tumor genomic profiling and the predictive role of LB in terms of response/resistance to chemotherapy was assessed in 11 and 24 studies, respectively, with greater consistency for those regarding ctDNA. Intriguingly, several case reports suggest that LB can indirectly capture the transition to SCLC in NSCLC treated with EGFR tyrosine kinase inhibitors. CONCLUSIONS While dedicated trials are needed, LB holds potential clinical roles in both de novo and transformed SCLC. CtDNA analysis appears the most valuable and practicable tool for both disease monitoring and genomic profiling.
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Affiliation(s)
- Elio Gregory Pizzutilo
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, 20122 Milan, Italy
| | - Martino Pedrani
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, 20122 Milan, Italy
| | - Alessio Amatu
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Lorenzo Ruggieri
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, 20122 Milan, Italy
| | - Calogero Lauricella
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Silvio Marco Veronese
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Diego Signorelli
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Giulio Cerea
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Laura Giannetta
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
| | - Salvatore Siena
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, 20122 Milan, Italy
| | - Andrea Sartore-Bianchi
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, 20162 Milan, Italy; (E.G.P.); (M.P.); (A.A.); (L.R.); (C.L.); (S.M.V.); (D.S.); (G.C.); (L.G.); (S.S.)
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, 20122 Milan, Italy
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