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Popescu I, Croitoru VM, Croitoru-Cazacu IM, Dudau AM, Herlea V, Dima SO, Croitoru AE. Dynamics of RAS Mutations in Liquid Biopsies in Metastatic Colorectal Cancer Patients-Case Series and Literature Review. J Pers Med 2024; 14:750. [PMID: 39064004 DOI: 10.3390/jpm14070750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/29/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Liquid biopsies can accurately identify molecular alterations in patients with colorectal cancer with high concordance with tissue analysis and shorter turnaround times. Circulating tumor (ct) DNA analysis can be used for diagnosing and monitoring tumor evolution in patients with metastatic colorectal cancer who are treated with EGFR inhibitors. In this article, we reported three clinical cases to illustrate the relevance of RAS mutations identified in ctDNA samples of patients with wild-type metastatic colorectal cancer who received an EGFR inhibitor plus chemotherapy as first-line treatment. The identification of RAS mutations in these patients is one of the most frequently identified mechanisms of acquired resistance. However, detecting a KRAS mutation via liquid biopsy can be caused by inter-tumor heterogeneity or it can be a false positive due to clonal hematopoiesis. More research is needed to determine whether ctDNA monitoring may help guide therapy options in metastatic colorectal cancer patients. We performed a literature review to assess the technologies that are used for analysis of RAS mutations on ctDNA, the degree of agreement between tissue and plasma and the importance of tissue/plasma discordant cases.
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Affiliation(s)
- Ionut Popescu
- Faculty of Medicine, Titu Maiorescu University, 031593 Bucharest, Romania
| | - Vlad M Croitoru
- Faculty of Medicine, Titu Maiorescu University, 031593 Bucharest, Romania
- Department of Oncology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Irina M Croitoru-Cazacu
- Department of Oncology, Fundeni Clinical Institute, 022328 Bucharest, Romania
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Ana-Maria Dudau
- Faculty of Medicine, Titu Maiorescu University, 031593 Bucharest, Romania
- Department of Oncology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Vlad Herlea
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Pathology, Fundeni Clinical Institute, 022328 Bucharest, Romania
| | - Simona Olimpia Dima
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, 022328 Bucharest, Romania
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2
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Ríos-Hoyo A, Monzonís X, Vidal J, Linares J, Montagut C. Unveiling acquired resistance to anti-EGFR therapies in colorectal cancer: a long and winding road. Front Pharmacol 2024; 15:1398419. [PMID: 38711991 PMCID: PMC11070789 DOI: 10.3389/fphar.2024.1398419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/03/2024] [Indexed: 05/08/2024] Open
Abstract
Emergence of acquired resistance limits the efficacy of the anti-EGFR therapies cetuximab and panitumumab in metastatic colorectal cancer. In the last decade, preclinical and clinical cohort studies have uncovered genomic alterations that confer a selective advantage to tumor cells under EGFR blockade, mainly downstream re-activation of RAS-MEK signaling and mutations in the extracellular domain of EGFR (EGFR-ECD). Liquid biopsies (genotyping of ctDNA) have been established as an excellent tool to easily monitor the dynamics of genomic alterations resistance in the blood of patients and to select patients for rechallenge with anti-EGFR therapies. Accordingly, several clinical trials have shown clinical benefit of rechallenge with anti-EGFR therapy in genomically-selected patients using ctDNA. However, alternative mechanisms underpinning resistance beyond genomics -mainly related to the tumor microenvironment-have been unveiled, specifically relevant in patients receiving chemotherapy-based multi-drug treatment in first line. This review explores the complexity of the multifaceted mechanisms that mediate secondary resistance to anti-EGFR therapies and potential therapeutic strategies to circumvent acquired resistance.
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Affiliation(s)
- Alejandro Ríos-Hoyo
- Yale Cancer Center, Yale School of Medicine, Yale University, New Haven, CT, United States
| | - Xavier Monzonís
- Department of Medical Oncology, Hospital del Mar Research Institute, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Joana Vidal
- Department of Medical Oncology, Hospital del Mar Research Institute, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Jenniffer Linares
- Department of Medical Oncology, Hospital del Mar Research Institute, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
| | - Clara Montagut
- Department of Medical Oncology, Hospital del Mar Research Institute, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Barcelona, Spain
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3
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Roazzi L, Patelli G, Bencardino KB, Amatu A, Bonazzina E, Tosi F, Amoruso B, Bombelli A, Mariano S, Stabile S, Porta C, Siena S, Sartore-Bianchi A. Ongoing Clinical Trials and Future Research Scenarios of Circulating Tumor DNA for the Treatment of Metastatic Colorectal Cancer. Clin Colorectal Cancer 2024:S1533-0028(24)00006-9. [PMID: 38519391 DOI: 10.1016/j.clcc.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/04/2024] [Accepted: 02/11/2024] [Indexed: 03/24/2024]
Abstract
Liquid biopsy using circulating tumor DNA (ctDNA) has emerged as a minimally invasive, timely approach to provide molecular diagnosis and monitor tumor evolution in patients with cancer. Since the molecular landscape of metastatic colorectal cancer (mCRC) is substantially heterogeneous and dynamic over space and time, ctDNA holds significant advantages as a biomarker for this disease. Numerous studies have demonstrated that ctDNA broadly recapitulates the molecular profile of the primary tumor and metastases, and have mainly focused on the genotyping of RAS and BRAF, that is propaedeutic for anti-EGFR treatment selection. However, ctDNA soon broadened its scope towards the assessment of early tumor response, as well as the identification of drug resistance biomarkers to drive potential molecular actionability. In this review article, we provide an overview of the current state-of-the-art of this methodology and its applications, focusing on ongoing clinical trials that employ ctDNA to prospectively guide treatment in patients with mCRC.
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Affiliation(s)
- Laura Roazzi
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy; Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Giorgio Patelli
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy; Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy; IFOM ETS - The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Katia Bruna Bencardino
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Alessio Amatu
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Erica Bonazzina
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Federica Tosi
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Brunella Amoruso
- Division of Medical Oncology, A.O.U. Consorziale Policlinico di Bari, Bari, Italy; Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - Anna Bombelli
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Sara Mariano
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Stefano Stabile
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Camillo Porta
- Division of Medical Oncology, A.O.U. Consorziale Policlinico di Bari, Bari, Italy; Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Bari, Italy
| | - Salvatore Siena
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy; Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy.
| | - Andrea Sartore-Bianchi
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy; Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy; Division of Clinical Research and Innovation, Grande Ospedale Metropolitano Niguarda, Milan, Italy.
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Torresan S, de Scordilli M, Bortolot M, Di Nardo P, Foltran L, Fumagalli A, Guardascione M, Ongaro E, Puglisi F. Liquid biopsy in colorectal cancer: Onward and upward. Crit Rev Oncol Hematol 2024; 194:104242. [PMID: 38128627 DOI: 10.1016/j.critrevonc.2023.104242] [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: 10/05/2023] [Revised: 11/20/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
Colorectal cancer (CRC) remains a leading cause of cancer-related deaths worldwide. In recent years, liquid biopsy has emerged as one of the most interesting areas of research in oncology, leading to innovative trials and practical changes in all aspects of CRC management. RNAs and cell free DNA (cfDNA) methylation are emerging as promising biomarkers for early diagnosis. Post-surgical circulating tumour DNA (ctDNA) can aid in evaluating minimal residual disease and personalising adjuvant treatment. In rectal cancer, ctDNA could improve response assessment to neoadjuvant therapy and risk stratification, especially in the era of organ-preservation trials. In the advanced setting, ctDNA analysis offers the opportunity to monitor treatment response and identify driver and resistance mutations more comprehensively than traditional tissue analysis, providing prognostic and predictive information. The aim of this review is to provide a detailed overview of the clinical applications and future perspectives of liquid biopsy in CRC.
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Affiliation(s)
- Sara Torresan
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; Department of Medicine, University of Udine, 33100 Udine, Italy
| | - Marco de Scordilli
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; Department of Medicine, University of Udine, 33100 Udine, Italy.
| | - Martina Bortolot
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; Department of Medicine, University of Udine, 33100 Udine, Italy
| | - Paola Di Nardo
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Luisa Foltran
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Arianna Fumagalli
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Michela Guardascione
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Elena Ongaro
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy
| | - Fabio Puglisi
- Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, 33081 Aviano, Italy; Department of Medicine, University of Udine, 33100 Udine, Italy
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5
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Yang L, Zhang W, Fan N, Cao P, Cheng Y, Zhu L, Luo S, Zong H, Bai Y, Zhou J, Deng Y, Ba Y, Liu T, Aili M, Yin X, Gu K, Dai G, Ying J, Shi J, Gao Y, Li W, Yu G, Xie L, Gai W, Wang Y, Meng P, Shi Y. Efficacy, safety and genomic analysis of SCT200, an anti-EGFR monoclonal antibody, in patients with fluorouracil, irinotecan and oxaliplatin refractory RAS and BRAF wild-type metastatic colorectal cancer: a phase Ⅱ study. EBioMedicine 2024; 100:104966. [PMID: 38217945 PMCID: PMC10826138 DOI: 10.1016/j.ebiom.2024.104966] [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: 08/18/2023] [Revised: 12/03/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024] Open
Abstract
BACKGROUND Limited therapeutic options are available for metastatic colorectal cancer (mCRC) patients after failure of first- and second-line therapies, representing an unmet medical need for novel therapies. METHODS This is an open-label, single arm, multicenter, phase Ⅱ study aiming to perform the efficacy, safety and genomic analysis of SCT200, a noval fully humanized IgG1 anti-epidermal growth factor receptor (EGFR) monoclonal antibody, in patients with fluorouracil, irinotecan and oxaliplatin refractory RAS and BRAF wild-type mCRC. SCT200 (6 mg/kg) was given weekly for the first six weeks, followed by a higher dose of 8 mg/kg every two weeks until disease progression or unacceptable toxicity. Primary endpoint was independent review committee (IRC)-assessed objective response rate (ORR) and secondary endpoints included ORR in patients with left-sided tumor, disease control rate (DCR), duration of response (DoR), time to response (TTR), progression-free survival (PFS), overall survival (OS) and safety. FINDINGS From February 12, 2018 to December 1, 2019, a total of 110 patients aged between 26 and 77 years (median: 55; interquartile range [IQR]: 47-63) with fluorouracil, oxaliplatin, and irinotecan refractory RAS and BRAF wild-type mCRC were enrolled from 22 hospitals in China. As the data cut-off date on May 15, 2020, the IRC-assessed ORR and DCR was 31% (34/110, 95% confidence interval [CI] 22-40%) and 75% (82/110, 95% CI 65-82%), respectively. Thirty one percent (34/110) patients achieved confirmed partial response (PR). The median PFS and median OS were 5.1 months (95% CI 3.4-5.2) and 16.2 months (95% CI 11.1-not available [NA]), respectively. The most common ≥ grade 3 treatment-related adverse events (TRAEs) were hypomagnesemia (17%, 19/110) and acneiform dermatitis (11%, 12/110). No deaths occurred. Genomic analysis suggested positive association between MYC amplification and patients' response (P = 0.0058). RAS/RAF mutation and MET amplification were the most frequently detected resistance mechanisms. Patients with high circulating tumor DNA (ctDNA) at baseline or without ctDNA clearance at the 7th week after the first dose of SCT200 administration before receiving SCT200 had worse PFS and OS. INTERPRETATION SCT200 exhibited promising clinical efficacy and manageable safety profiles in RAS and BRAF wild-type mCRC patients progressed on fluorouracil, irinotecan and oxaliplatin treatment. The baseline ctDNA and ctDNA clearance status at the 7th week after the first dose of SCT200 administration before receiving SCT200 could be a potential prognostic biomarker for RAS and BRAF wild-type mCRC patients with SCT200 therapy. FUNDING This study was sponsored by Sinocelltech Ltd., Beijing, China and partly supported by the National Science and Technology Major Project for Key New Drug Development (2019ZX09732001-006, 2017ZX09304015).
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Affiliation(s)
- Lin Yang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing, China
| | - Wen Zhang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing, China
| | - Nanfeng Fan
- Department of Abdominal Oncology, Fujian Provincial Cancer Hospital, Fuzhou, China
| | - Peiguo Cao
- Department of Oncology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ying Cheng
- Department of Oncology, Cancer Hospital of Jilin Province, Changchun, China
| | - Lingjun Zhu
- Department of Oncology, Jiangsu Province Hospital, Nanjing, China
| | - Suxia Luo
- Department of Medical Oncology, Henan Provincial Cancer Hospital, Zhengzhou, China
| | - Hong Zong
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuxian Bai
- Department of Internal Medicine, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jianfeng Zhou
- Department of Medical Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yanhong Deng
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yi Ba
- Department of Gastroenterology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Tianshu Liu
- Department of Medical Oncology, Zhongshan Hospital Affiliated to Fudan University, Shanghai, China
| | - Mayinuer Aili
- The Third Department of Oncology, Cancer Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Xianli Yin
- Department of Gastroenterology, Hunan Cancer Hospital, Changsha, China
| | - Kangsheng Gu
- Department of Medical Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Guanghai Dai
- Department of Medical Oncology, Chinese PLA General Hospital, Beijing, China
| | - Jieer Ying
- Department of Abdominal Oncology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jianhua Shi
- Department of Medical Oncology, Linyi Cancer Hospital, Linyi, China
| | - Yajie Gao
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Guohua Yu
- Department of Oncology, Weifang People's Hospital, Weifang, China
| | - Liangzhi Xie
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing, China
| | - Wenlin Gai
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing, China
| | - Yan Wang
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing, China
| | - Peng Meng
- Burning Rock Biotech, Shanghai, China
| | - Yuankai Shi
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing Key Laboratory of Clinical Study on Anticancer Molecular Targeted Drugs, Beijing, China.
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6
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Patelli G, Mauri G, Tosi F, Amatu A, Bencardino K, Bonazzina E, Pizzutilo EG, Villa F, Calvanese G, Agostara AG, Stabile S, Ghezzi S, Crisafulli G, Di Nicolantonio F, Marsoni S, Bardelli A, Siena S, Sartore-Bianchi A. Circulating Tumor DNA to Drive Treatment in Metastatic Colorectal Cancer. Clin Cancer Res 2023; 29:4530-4539. [PMID: 37436743 PMCID: PMC10643999 DOI: 10.1158/1078-0432.ccr-23-0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/28/2023] [Accepted: 06/23/2023] [Indexed: 07/13/2023]
Abstract
In the evolving molecular treatment landscape of metastatic colorectal cancer (mCRC), the identification of druggable alterations is pivotal to achieve the best therapeutic opportunity for each patient. Because the number of actionable targets is expanding, there is the need to timely detect their presence or emergence to guide the choice of different available treatment options. Liquid biopsy, through the analysis of circulating tumor DNA (ctDNA), has proven safe and effective as a complementary method to address cancer evolution while overcoming the limitations of tissue biopsy. Even though data are accumulating regarding the potential for ctDNA-guided treatments applied to targeted agents, still major gaps in knowledge exist as for their application to different areas of the continuum of care. In this review, we recapitulate how ctDNA information could be exploited to drive different targeted treatment strategies in mCRC patients, by refining molecular selection before treatment by addressing tumor heterogeneity beyond tumor tissue biopsy; longitudinally monitoring early-tumor response and resistance mechanisms to targeted agents, potentially leading to tailored, molecular-driven, therapeutic options; guiding the molecular triage towards rechallenge strategies with anti-EGFR agents, suggesting the best time for retreatment; and providing opportunities for an "enhanced rechallenge" through additional treatments or combos aimed at overcoming acquired resistance. Besides, we discuss future perspectives concerning the potential role of ctDNA to fine-tune investigational strategies such as immuno-oncology.
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Affiliation(s)
- Giorgio Patelli
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
- IFOM ETS – The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Gianluca Mauri
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
- IFOM ETS – The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Federica Tosi
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Alessio Amatu
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Katia Bencardino
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Erica Bonazzina
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Elio Gregory Pizzutilo
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Federica Villa
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Gabriele Calvanese
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Alberto Giuseppe Agostara
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Stefano Stabile
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Silvia Ghezzi
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | | | - Federica Di Nicolantonio
- Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia-IRCCS, Candiolo, Italy
- Department of Oncology, University of Torino, Candiolo, Italy
| | - Silvia Marsoni
- IFOM ETS – The AIRC Institute of Molecular Oncology, Milan, Italy
| | - Alberto Bardelli
- Candiolo Cancer Institute, Fondazione del Piemonte per l'Oncologia-IRCCS, Candiolo, Italy
- Department of Oncology, University of Torino, Candiolo, Italy
| | - Salvatore Siena
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Andrea Sartore-Bianchi
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Department of Hematology, Oncology, and Molecular Medicine, Grande Ospedale Metropolitano Niguarda, Milan, Italy
- Division of Clinical Research and Innovation, Grande Ospedale Metropolitano Niguarda, Milan, Italy
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7
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Baaz M, Cardilin T, Jirstrand M. Model-based prediction of progression-free survival for combination therapies in oncology. CPT Pharmacometrics Syst Pharmacol 2023; 12:1227-1237. [PMID: 37300376 PMCID: PMC10508530 DOI: 10.1002/psp4.13003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/12/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Progression-free survival (PFS) is an important clinical metric for comparing and evaluating similar treatments for the same disease within oncology. After the completion of a clinical trial, a descriptive analysis of the patients' PFS is often performed post hoc using the Kaplan-Meier estimator. However, to perform predictions, more sophisticated quantitative methods are needed. Tumor growth inhibition models are commonly used to describe and predict the dynamics of preclinical and clinical tumor size data. Moreover, frameworks also exist for describing the probability of different types of events, such as tumor metastasis or patient dropout. Combining these two types of models into a so-called joint model enables model-based prediction of PFS. In this paper, we have constructed a joint model from clinical data comparing the efficacy of FOLFOX against FOLFOX + panitumumab in patients with metastatic colorectal cancer. The nonlinear mixed effects framework was used to quantify interindividual variability (IIV). The model describes tumor size and PFS data well, and showed good predictive capabilities using truncated as well as external data. A machine-learning guided analysis was performed to reduce unexplained IIV by incorporating patient covariates. The model-based approach illustrated in this paper could be useful to help design clinical trials or to determine new promising drug candidates for combination therapy trials.
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Affiliation(s)
- Marcus Baaz
- Fraunhofer‐Chalmers Research Centre for Industrial MathematicsGothenburgSweden
- Department of Mathematical SciencesChalmers University of Technology and University of GothenburgGothenburgSweden
| | - Tim Cardilin
- Fraunhofer‐Chalmers Research Centre for Industrial MathematicsGothenburgSweden
| | - Mats Jirstrand
- Fraunhofer‐Chalmers Research Centre for Industrial MathematicsGothenburgSweden
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8
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Heidari F, Madadi S, Alizadeh N, Alimardani MH, Safari A, Armand MH, Pishgahzadeh E, Soleimani M. The potential of monoclonal antibodies for colorectal cancer therapy. Med Oncol 2023; 40:273. [PMID: 37603117 DOI: 10.1007/s12032-023-02151-1] [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: 05/13/2023] [Accepted: 08/05/2023] [Indexed: 08/22/2023]
Abstract
Conventional chemotherapy has significant limitations for colorectal cancer (CRC) treatment, especially those who have developed metastatic recurrence CRC. A growing number of studies have investigated the potential use of monoclonal antibodies (mAbs) for CRC therapy. mAbs showing clinical benefits for CRC, making the treatment more selective with lower side effects without significant immunogenicity. In addition, recent advancements in antibody engineering strategies and the development of bifunctional or even trifunctional drugs have helped to overcome heterogeneity as the main challenge in cancer treatment. The current review discusses advances in applying mAbs for CRC therapy alone, combined, or with small molecules.
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Affiliation(s)
- Fatemeh Heidari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Soheil Madadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Neda Alizadeh
- Anesthesia and Critical Care Department, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Hossein Alimardani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Armin Safari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Mohammad Hossein Armand
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Elahe Pishgahzadeh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Meysam Soleimani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran.
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9
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Lastraioli E, Bettiol A, Iorio J, Limatola E, Checcacci D, Parisi E, Bianchi C, Arcangeli A, Iannopollo M, Di Costanzo F, Di Lieto M. Evaluation of RAS Mutational Status in Liquid Biopsy to Monitor Disease Progression in Metastatic Colorectal Cancer Patients. Cells 2023; 12:1458. [PMID: 37296579 PMCID: PMC10253213 DOI: 10.3390/cells12111458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/09/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
In this study we evaluated both~ K- and N-RAS mutations in plasma samples from patients with metastatic colorectal cancer by means of the BEAMing technology, and we assessed their diagnostic performance compared to RAS analyses performed on tissue. The sensitivity of BEAMing in identifying KRAS mutations was of 89.5%, with a fair specificity. The agreement with tissue analysis was moderate. The sensitivity for NRAS was high with a good specificity, and the agreement between tissue analysis and BEAMing was fair. Interestingly, significantly higher mutant allele fraction (MAF) levels were detected in patients with G2 tumors, liver metastases, and in those who did not receive surgery. NRAS MAF level was significantly higher in patients with mucinous adenocarcinoma and for those with lung metastases. A sharp increase in the MAF values was observed in patients who moved towards disease progression. More strikingly, molecular progression always anticipated the radiological one in these patients. These observations pave the way to the possibility of using liquid biopsy to monitor patients during treatment, and to enable oncologists to anticipate interventions compared to radiological analyses. This will allow time to be saved and ensure a better management of metastatic patients in the near future.
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Affiliation(s)
- Elena Lastraioli
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
- Complex Dynamics Study Centre (CSDC), University of Florence, 50100 Florence, Italy
| | - Alessandra Bettiol
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Jessica Iorio
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Elvira Limatola
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
- Medical Oncology, S.S. Cosma e Damiano Hospital, 51017 Pescia, Italy
| | - Daniele Checcacci
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
- Medical Oncology, S.S. Cosma e Damiano Hospital, 51017 Pescia, Italy
| | - Erica Parisi
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
- Medical Oncology, S.S. Cosma e Damiano Hospital, 51017 Pescia, Italy
| | - Cristina Bianchi
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
- Medical Oncology, S.S. Cosma e Damiano Hospital, 51017 Pescia, Italy
| | - Annarosa Arcangeli
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
- Complex Dynamics Study Centre (CSDC), University of Florence, 50100 Florence, Italy
| | - Mauro Iannopollo
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
- Medical Oncology, S.S. Cosma e Damiano Hospital, 51017 Pescia, Italy
| | - Francesco Di Costanzo
- Medical Oncology Unit, Azienda Ospedaliero-Universitaria Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Marco Di Lieto
- Medical Oncology, S. Jacopo Hospital, 51100 Pistoia, Italy
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10
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Raghav K, Ou FS, Venook AP, Innocenti F, Sun R, Lenz HJ, Kopetz S. Acquired Genomic Alterations on First-Line Chemotherapy With Cetuximab in Advanced Colorectal Cancer: Circulating Tumor DNA Analysis of the CALGB/SWOG-80405 Trial (Alliance). J Clin Oncol 2023; 41:472-478. [PMID: 36067452 PMCID: PMC9870237 DOI: 10.1200/jco.22.00365] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/01/2022] [Accepted: 07/18/2022] [Indexed: 01/27/2023] Open
Abstract
Clinical trials frequently include multiple end points that mature at different times. The initial report, typically based on the primary end point, may be published when key planned co-primary or secondary analyses are not yet available. Clinical Trial Updates provide an opportunity to disseminate additional results from studies, published in JCO or elsewhere, for which the primary end point has already been reported.Acquired genomic alterations (Acq-GAs), specifically RAS, BRAF, and EGFR-ectodomain mutations and ERBB2 and MET amplifications, are recognized as major mechanisms of resistance to later-line anti-EGFR-antibody therapy in metastatic colorectal cancer (mCRC). However, data regarding emergence of these Acq-GAs under the selective pressure of first-line anti-EGFR-chemotherapy are lacking. We performed next-generation sequencing (Guardant360) on circulating tumor DNA obtained from paired plasma samples (pretreatment and postprogression) from the CALGB/SWOG-80405 trial, which randomly assigned patients with mCRC between first-line chemotherapy with cetuximab (anti-EGFR-chemotherapy) or bevacizumab (anti-VEGF-chemotherapy). The primary objective was to determine the prevalence of Acq-GAs on anti-EGFR-chemotherapy and compare this to the prevalence with anti-VEGF-chemotherapy on trial and pooled estimates (N = 292) seen with later-line anti-EGFR-antibody therapy as reported in the literature. Among the 61 patients on anti-EGFR-chemotherapy, only four (6.6%) developed ≥ 1 Acq-GAs of interest compared with 10.1% (7) on anti-VEGF-chemotherapy (odds ratio, 0.62; 95% CI, 0.20 to 2.11) and 62.0% on anti-EGFR-antibody therapy in later lines (odds ratio, 0.09; 95% CI, 0.03 to 0.23). Acq-GAs, classically associated with anti-EGFR-antibody resistance in later lines (RAS, BRAF, and EGFR-ectodomain mutations; ERBB2 and MET amplifications), were rare with up-front use of anti-EGFR-chemotherapy indicating divergent resistance mechanisms. These findings have critical translational relevance to timing and value of circulating tumor DNA-guided anti-EGFR rechallenge in patients with mCRC, especially those treated with anti-EGFR therapy upfront.
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Affiliation(s)
- Kanwal Raghav
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Fang-Shu Ou
- Alliance Statistics and Data Management Center, Mayo Clinic, Rochester, MN
| | - Alan P. Venook
- UCSF Helen Diller Family Comprehensive Cancer, San Francisco, CA
| | | | - Ryan Sun
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Heinz-Josef Lenz
- USC Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA
| | - Scott Kopetz
- The University of Texas MD Anderson Cancer Center, Houston, TX
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11
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Valladares-Ayerbes M, Garcia-Alfonso P, Muñoz Luengo J, Pimentel Caceres PP, Castillo Trujillo OA, Vidal-Tocino R, Llanos M, Llorente Ayala B, Limon Miron ML, Salud A, Cirera Nogueras L, Garcia-Carbonero R, Safont MJ, Falco Ferrer E, Aparicio J, Vicente Conesa MA, Guillén-Ponce C, Garcia-Teijido P, Medina Magan MB, Busquier I, Salgado M, Lloansí Vila A. Evolution of RAS Mutations in Cell-Free DNA of Patients with Tissue RAS Wild-Type Metastatic Colorectal Cancer Receiving First-Line Treatment: The PERSEIDA Study. Cancers (Basel) 2022; 14:6075. [PMID: 36551560 PMCID: PMC9776941 DOI: 10.3390/cancers14246075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
The serial analysis of cell-free DNA (cfDNA) enables minimally invasive monitoring of tumor evolution, providing continuous genetic information. PERSEIDA was an observational, prospective study assessing the cfDNA RAS (KRAS/NRAS) mutational status evolution in first-line, metastatic CRC, RAS wild-type (according to baseline tumor tissue biopsy) patients. Plasma samples were collected before first-line treatment, after 20 ± 2 weeks, and at disease progression. One hundred and nineteen patients were included (102 received panitumumab and chemotherapy as first-line treatment-panitumumab subpopulation). Fifteen (12.6%) patients presented baseline cfDNA RAS mutations (n = 14 [13.7%], panitumumab subpopulation) (mutant allele fraction ≥0.02 for all results). No patients presented emergent mutations (cfDNA RAS mutations not present at baseline) at 20 weeks. At disease progression, 11 patients (n = 9; panitumumab subpopulation) presented emergent mutations (RAS conversion rate: 19.0% [11/58]; 17.7% [9/51], panitumumab subpopulation). In contrast, three (5.2%) patients presenting baseline cfDNA RAS mutations were RAS wild-type at disease progression. No significant associations were observed between overall response rate or progression-free survival and cfDNA RAS mutational status in the total panitumumab subpopulation. Although, in patients with left-sided tumors, a significantly longer progression-free survival was observed in cfDNA RAS wild-type patients compared to those presenting cfDNA RAS mutations at any time. Continuous evaluation of RAS mutations may provide valuable insights on tumor molecular dynamics that can help clinical practice.
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Affiliation(s)
| | | | | | | | | | | | - Marta Llanos
- Hospital Universitario de Canarias, 38320 San Cristóbal de La Laguna, Spain
| | | | | | - Antonieta Salud
- Hospital Universitario Arnau de Vilanova, 25198 Lleida, Spain
| | | | | | | | | | - Jorge Aparicio
- Hospital Universitari i Politècnic La Fe, 46026 València, Spain
| | | | | | | | | | - Isabel Busquier
- Consorcio Hospitalario Provincial de Castellón, 12002 Castellón de la Plana, Spain
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12
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Aparicio J, Virgili Manrique AC, Capdevila J, Muñoz Boza F, Galván P, Richart P, Oliveres H, Páez D, Hernando J, Serrano S, Vera R, Hernandez-Yagüe X, Gallego RÁ, Riesco-Martinez MC, García de Albeniz X, Maurel J. Randomized phase II trial of FOLFIRI-panitumumab compared with FOLFIRI alone in patients with RAS wild-type circulating tumor DNA metastatic colorectal cancer beyond progression to first-line FOLFOX-panitumumab: the BEYOND study (GEMCAD 17-01). Clin Transl Oncol 2022; 24:2155-2165. [PMID: 35761123 PMCID: PMC9522782 DOI: 10.1007/s12094-022-02868-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 05/27/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE Panitumumab plus FOLFOX (P-FOLFOX) is standard first-line treatment for RAS wild-type (WT) metastatic colorectal cancer. The value of panitumumab rechallenge is currently unknown. We assessed addition of panitumumab to FOLFIRI (P-FOLFIRI) beyond progression to P-FOLFOX in patients with no RAS mutations in liquid biopsy (LB). METHODS In this randomized phase II trial, patients were assigned (3:2 ratio) to second-line P-FOLFIRI (arm A) or FOLFIRI alone (arm B). LB for circulating tumor DNA analysis was collected at study entry and at disease progression. Primary endpoint was 6-month progression-free survival. Two-stage Simon design required 85 patients to be included (EudraCT 2017-004519-38). RESULTS Between February 2019 and November 2020, 49 patients were screened (16 RAS mutations in LB detected) and 31 included (18 assigned to arm A and 13 to arm B). The study was prematurely closed due to inadequate recruitment. Serious adverse events were more frequent in arm A (44% vs. 23%). Overall response rate was 33% (arm A) vs. 7.7% (arm B). Six-month progression-free survival rate was 66.7% (arm A) and 38.5% (arm B). Median progression-free survival was 11.0 months (arm A) and 4.0 months (arm B) (hazard ratio, 0.58). At disease progression, RAS or BRAF mutations in LB were found in 4/11 patients (36%) in arm A and 2/10 (20%) in arm B. CONCLUSIONS The BEYOND study suggests a meaningful benefit of P-FOLFIRI beyond progression to P-FOLFOX in metastatic colorectal cancer patients with WT RAS status selected by LB. This strategy deserves further investigation.
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Affiliation(s)
- Jorge Aparicio
- Medical Oncology Department, Hospital Universitari i Politècnic La Fe, Avda. Abril Martorell 106, 46026, Valencia, Spain.
| | | | - Jaume Capdevila
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology (VHIO), Barcelona, Spain
- IOB-Teknon, Barcelona, Spain
| | - Félix Muñoz Boza
- Medical Oncology Department, Hospital Universitari Sant Joan de Reus, Reus, Spain
| | - Patricia Galván
- Translational Genomics and Targeted Therapies in Solid Tumors, Medical Oncology Department, Hospital Clínic de Barcelona, C/ Villaroel, 170, 08036, Barcelona, Spain
| | - Paula Richart
- Medical Oncology Department, Hospital Universitari i Politècnic La Fe, Avda. Abril Martorell 106, 46026, Valencia, Spain
| | - Helena Oliveres
- Translational Genomics and Targeted Therapies in Solid Tumors, Medical Oncology Department, Hospital Clínic de Barcelona, C/ Villaroel, 170, 08036, Barcelona, Spain
| | - David Páez
- Medical Oncology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Jorge Hernando
- Medical Oncology Department, Vall d'Hebron University Hospital, Vall Hebron Institute of Oncology (VHIO), Barcelona, Spain
| | - Sara Serrano
- Medical Oncology Department, Hospital Universitari Sant Joan de Reus, Reus, Spain
| | - Ruth Vera
- Medical Oncology Department, Complejo Hospitalario de Navarra, Pamplona, Spain
| | | | - Rafael Álvarez Gallego
- Medical Oncology Department, Hospital Madrid Norte San Chinarro-Centro Integral Oncologico Clara Campal, Madrid, Spain
| | | | | | - Joan Maurel
- Translational Genomics and Targeted Therapies in Solid Tumors, Medical Oncology Department, Hospital Clínic de Barcelona, C/ Villaroel, 170, 08036, Barcelona, Spain.
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13
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Valenzuela G, Burotto M, Marcelain K, González-Montero J. Liquid biopsy to detect resistance mutations against anti-epidermal growth factor receptor therapy in metastatic colorectal cancer. World J Gastrointest Oncol 2022; 14:1654-1664. [PMID: 36187383 PMCID: PMC9516650 DOI: 10.4251/wjgo.v14.i9.1654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/19/2022] [Accepted: 08/10/2022] [Indexed: 02/05/2023] Open
Abstract
Colorectal cancer (CRC) is a major cause of mortality worldwide, associated with a steadily growing prevalence. Notably, the identification of KRAS, NRAS, and BRAF mutations has markedly improved targeted CRC therapy by affording treatments directed against the epidermal growth factor receptor (EGFR) and other anti-angiogenic therapies. However, the survival benefit conferred by these therapies remains variable and difficult to predict, owing to the high level of molecular heterogeneity among patients with CRC. Although classification into consensus molecular subtypes could optimize response prediction to targeted therapies, the acquisition of resistance mutations to targeted therapy is, in part, responsible for the lack of response in some patients. However, the acquisition of such mutations can induce challenges in clinical practice. The utility of liquid biopsy to detect resistance mutations against anti-EGFR therapy has recently been described. This approach may constitute a new standard in the decision algorithm for targeted CRC therapy.
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Affiliation(s)
- Guillermo Valenzuela
- Department of Basic and Clinical Oncology, University of Chile, Santiago 8380453, Chile
- Department of Internal Medicine, Hospital del Salvador, Santiago 7500922, Chile
| | - Mauricio Burotto
- Department of Oncology, Bradford-Hill Clinical Research Center, Santiago 8420383, Chile
| | - Katherine Marcelain
- Department of Basic and Clinical Oncology, University of Chile, Santiago 8380453, Chile
| | - Jaime González-Montero
- Department of Basic and Clinical Oncology, University of Chile, Santiago 8380453, Chile
- Department of Oncology, Bradford-Hill Clinical Research Center, Santiago 8420383, Chile
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14
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Callesen LB, Hamfjord J, Boysen AK, Pallisgaard N, Guren TK, Kure EH, Spindler KLG. Circulating tumour DNA and its clinical utility in predicting treatment response or survival in patients with metastatic colorectal cancer: a systematic review and meta-analysis. Br J Cancer 2022; 127:500-513. [PMID: 35440666 PMCID: PMC9345951 DOI: 10.1038/s41416-022-01816-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND We investigate the current knowledge on circulating tumour DNA (ctDNA) and its clinical utility in predicting outcomes in patients with metastatic colorectal cancer (mCRC). METHODS PubMed, Embase, Cochrane Database of Systematic Reviews and Cochrane Central Register of Controlled Trials were searched. Last search 16/12/2020. We included studies on patients with mCRC reporting the predictive or prognostic value of ctDNA. We performed separate random-effects meta-analyses to investigate if baseline ctDNA and early changes in ctDNA levels during treatment were associated with survival. The risk of bias was assessed according to the Quality in Prognosis Studies tool. RESULTS Seventy-one studies were included with 6930 patients. Twenty-four studies were included in meta-analyses. High baseline ctDNA level was associated with short progression-free survival (PFS) (HR = 2.2; 95% CI 1.8-2.8; n = 509) and overall survival (OS) (HR = 2.4; 95% CI 1.9-3.1; n = 1336). A small or no early decrease in ctDNA levels during treatment was associated with short PFS (HR = 3.0; 95% CI 2.2-4.2; n = 479) and OS (HR = 2.8; 95% CI 2.1-3.9; n = 583). Results on clonal evolution and lead-time were inconsistent. A majority of included studies (n = 50/71) had high risk of bias in at least one domain. CONCLUSIONS Plasma ctDNA is a strong prognostic biomarker in mCRC. However, true clinical utility is lacking.
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Affiliation(s)
- Louise B Callesen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark.
- Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark.
| | - Julian Hamfjord
- Department of Oncology, Oslo University Hospital, Oslo, Norway
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Anders K Boysen
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
| | - Niels Pallisgaard
- Department of Pathology, Zealand University Hospital, Roskilde, Denmark
| | - Tormod K Guren
- Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Elin H Kure
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department of Natural Sciences and Environmental Health, Faculty of Technology, Natural Sciences and Maritime Sciences, University of South-Eastern Norway, Campus Bø, Bø, Norway
| | - Karen-Lise G Spindler
- Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark
- Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
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15
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Zhou H, Zhu L, Song J, Wang G, Li P, Li W, Luo P, Sun X, Wu J, Liu Y, Zhu S, Zhang Y. Liquid biopsy at the frontier of detection, prognosis and progression monitoring in colorectal cancer. Mol Cancer 2022; 21:86. [PMID: 35337361 PMCID: PMC8951719 DOI: 10.1186/s12943-022-01556-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/02/2022] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common cancers worldwide and a leading cause of carcinogenic death. To date, surgical resection is regarded as the gold standard by the operator for clinical decisions. Because conventional tissue biopsy is invasive and only a small sample can sometimes be obtained, it is unable to represent the heterogeneity of tumor or dynamically monitor tumor progression. Therefore, there is an urgent need to find a new minimally invasive or noninvasive diagnostic strategy to detect CRC at an early stage and monitor CRC recurrence. Over the past years, a new diagnostic concept called “liquid biopsy” has gained much attention. Liquid biopsy is noninvasive, allowing repeated analysis and real-time monitoring of tumor recurrence, metastasis or therapeutic responses. With the advanced development of new molecular techniques in CRC, circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), exosomes, and tumor-educated platelet (TEP) detection have achieved interesting and inspiring results as the most prominent liquid biopsy markers. In this review, we focused on some clinical applications of CTCs, ctDNA, exosomes and TEPs and discuss promising future applications to solve unmet clinical needs in CRC patients.
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Affiliation(s)
- Hui Zhou
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China.,Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Liyong Zhu
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Jun Song
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Guohui Wang
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Pengzhou Li
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Weizheng Li
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Ping Luo
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Xulong Sun
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Jin Wu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Yunze Liu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Shaihong Zhu
- Department of General Surgery, Third Xiangya Hospital, Central South University, Changsha, 410013, China.
| | - Yi Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China.
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16
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Rachiglio AM, Forgione L, Pasquale R, Barone CA, Maiello E, Antonuzzo L, Cassata A, Tonini G, Bordonaro R, Rosati G, Zaniboni A, Lonardi S, Ferrari D, Frassineti GL, Tamberi S, Pisconti S, Di Fabio F, Roma C, Orlandi A, Latiano T, Damato A, Tortora G, Pinto C, Normanno N. Dynamics of RAS/BRAF Mutations in cfDNA from Metastatic Colorectal Carcinoma Patients Treated with Polychemotherapy and Anti-EGFR Monoclonal Antibodies. Cancers (Basel) 2022; 14:1052. [PMID: 35205799 PMCID: PMC8870112 DOI: 10.3390/cancers14041052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/14/2022] [Accepted: 02/17/2022] [Indexed: 02/05/2023] Open
Abstract
Analysis of plasma-derived cell-free DNA (cfDNA) might allow for the early identification of resistance in metastatic colorectal carcinoma (mCRC) patients receiving anti-EGFR monoclonal antibodies. We tested plasma samples from the Erbitux Metastatic Colorectal Cancer Strategy (ERMES) phase III trial of FOLFIRI+Cetuximab in first-line treatment of RAS/BRAF wild-type mCRC. Samples were collected at baseline (n = 37), at 8 weeks of treatment (n = 32), progressive disease (PD; n = 36) and 3 months after PD (n = 21). cfDNA testing was performed using the Idylla™ ctKRAS and ctNRAS-BRAF tests and the Oncomine Pan-Cancer Cell-Free Assay. Analysis of basal samples revealed RAS/BRAF mutations in 6/37 cases. A transient RAS positivity not associated with PD was observed at 8 weeks in five cases that showed no mutations at baseline and PD. The frequency of mutant cases increased at PD (33.3%) and decreased again at 3 months after PD (9.5%). The median progression-free survival (mPFS) of patients RAS/BRAF mutant at PD was 7.13 months versus 7.71 months in wild-type patients (p = 0.3892). These data confirm that the occurrence of RAS/BRAF mutations in mCRC patients receiving anti-EGFR agents is relatively frequent. However, the cfDNA dynamics of RAS mutations in patients treated with anti-EGFR agents plus polychemotherapy are complex and might not be directly associated with resistance to treatment.
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Affiliation(s)
- Anna Maria Rachiglio
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy; (A.M.R.); (L.F.); (R.P.); (C.R.)
| | - Laura Forgione
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy; (A.M.R.); (L.F.); (R.P.); (C.R.)
| | - Raffaella Pasquale
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy; (A.M.R.); (L.F.); (R.P.); (C.R.)
| | - Carlo Antonio Barone
- Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy; (C.A.B.); (A.O.); (G.T.)
| | - Evaristo Maiello
- IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy; (E.M.); (T.L.)
| | - Lorenzo Antonuzzo
- Medical Oncology Unit, Azienda Ospedaliero Universitaria Careggi, 50134 Florence, Italy;
| | - Antonino Cassata
- Medical Oncology Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy;
| | - Giuseppe Tonini
- Medical Oncology Unit, Università Campus Bio-Medico, 00128 Rome, Italy;
| | | | - Gerardo Rosati
- Medical Oncology Unit, Ospedale San Carlo, 85100 Potenza, Italy;
| | | | | | | | - Giovanni Luca Frassineti
- Medical Oncology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, 47014 Meldola, Italy;
| | | | - Salvatore Pisconti
- Medical Oncology Division, S. Giuseppe Moscati Hospital, 74010 Taranto, Italy;
| | - Francesca Di Fabio
- Medical Oncology Unit, S. Orsola-Malpighi Hospital, 40138 Bologna, Italy;
| | - Cristin Roma
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy; (A.M.R.); (L.F.); (R.P.); (C.R.)
| | - Armando Orlandi
- Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy; (C.A.B.); (A.O.); (G.T.)
| | - Tiziana Latiano
- IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, Italy; (E.M.); (T.L.)
| | - Angela Damato
- Medical Oncology Unit, Clinical Cancer Center, AUSL-IRCCS Reggio Emilia, 42122 Reggio Emilia, Italy; (A.D.); (C.P.)
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy
| | - Giampaolo Tortora
- Fondazione Policlinico Universitario Agostino Gemelli, 00168 Rome, Italy; (C.A.B.); (A.O.); (G.T.)
| | - Carmine Pinto
- Medical Oncology Unit, Clinical Cancer Center, AUSL-IRCCS Reggio Emilia, 42122 Reggio Emilia, Italy; (A.D.); (C.P.)
| | - Nicola Normanno
- Cell Biology and Biotherapy Unit, Istituto Nazionale Tumori “Fondazione G. Pascale”-IRCCS, 80131 Naples, Italy; (A.M.R.); (L.F.); (R.P.); (C.R.)
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17
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Wei L, Lin Z, Xie S, Ruan D, Jiang W, Cui Y, Liu S, Wang T, Chen Z, Lin Q. Complete Response With Cetuximab-Based Treatment of Metastatic Colorectal Cancers: Two Case Reports and Literature Review. Front Oncol 2022; 12:798515. [PMID: 35251973 PMCID: PMC8888900 DOI: 10.3389/fonc.2022.798515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/21/2022] [Indexed: 12/24/2022] Open
Abstract
Metastases typically develop before diagnosis and during the treatment of colorectal cancers, while patients with metastatic colorectal cancers (mCRCs) currently have a poor prognosis. In terms of surgical approaches, adjuvant therapies, and targeted therapies, the treatment of mCRCs has had numerous recent advances. As a targeted agent widely used in mCRCs, cetuximab-based treatment is still under dispute due to its side effects and unstable effect. We present two mCRC cases treated with cetuximab-based therapy, of which two patients achieved complete response and without recurrence for over 22 and 84 months, respectively. To better understand the drug usage, we also reviewed the recent achievements and usage precautions of cetuximab in mCRCs. Present and many previous observations support that cetuximab might be a referred drug in the first-line chemotherapy of mCRCs with wild-type RAS and BRAF and proficient mismatch repair.
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Affiliation(s)
- Li Wei
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zexiao Lin
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Sidong Xie
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Danyun Ruan
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wen Jiang
- Department of Research and Development, Nanjing Geneseeq Technology Inc., Nanjing, China
| | - Yueli Cui
- Department of Research and Development, Nanjing Geneseeq Technology Inc., Nanjing, China
| | - Sisi Liu
- Department of Research and Development, Nanjing Geneseeq Technology Inc., Nanjing, China
| | - Tiantian Wang
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Tiantian Wang, ; Zhanhong Chen, ; Qu Lin,
| | - Zhanhong Chen
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Tiantian Wang, ; Zhanhong Chen, ; Qu Lin,
| | - Qu Lin
- Department of Oncology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Tiantian Wang, ; Zhanhong Chen, ; Qu Lin,
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18
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Matsuda A, Yamada T, Takahashi T, Hirata K, Nagasaka T, Ishimaru K, Sakamoto K, Koda K, Ishikawa T, Ishida H, Matsuda K, Kuramochi H, Yoshida Y, Sonoda H, Yoshida H. A Trial Protocol of Precision Medicine for Patients with RAS Wild Metastatic Colorectal Cancer Using Liquid Biopsy (RAS-liquid Study): A Prospective, Multicenter Observational Study. J Anus Rectum Colon 2022; 6:52-57. [PMID: 35128137 PMCID: PMC8801244 DOI: 10.23922/jarc.2021-042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/01/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Anti-epidermal growth factor receptor (EGFR) therapy has been identified to prolong the survival of metastatic colorectal cancer (mCRC) patients without RAS mutations. However, its efficacy is not always consistent for these patients. Genomic profiles of primary tumors and metastases are not always concordant; thus, chemotherapeutic agents can alter the tumor molecular profile. This molecular heterogeneity may explain resistance to anti-EGFR therapy. Liquid biopsy using circulating tumor DNA (ctDNA) is a novel, non-invasive diagnostic tool that can accommodate this molecular heterogeneity, providing a comprehensive, real-time view of the molecular landscape. In this study, we evaluated the predictive value of genomic mutations in ctDNA for primary and acquired resistance to anti-EGFR therapy. Methods/Design: This study is a prospective, multicenter, observational study of mCRC patients with wild-type tissue RAS treated with cytotoxic agents and anti-EGFR antibodies as first-line therapy. Genomic mutations, including RAS, BRAF, PIK3CA, and EGFR in ctDNA, are assessed via Droplet Digital PCR before starting chemotherapy and every 3 months thereafter until disease progression. The target sample size is estimated to be 100. The primary endpoint is the response rate in patients without RAS mutation in their blood sample before starting chemotherapy. Discussion: This study will clarify the predictive value of baseline RAS mutation in ctDNA for responses to anti-EGFR therapy; the frequency of emerging RAS, BRAF, PIK3CA, and EGFR mutations in ctDNA; and the association with secondary resistance to anti-EGFR therapy in first-line therapy for wild-type tissue RAS mCRC patients.
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Affiliation(s)
- Akihisa Matsuda
- Department of Gastrointestinal Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
| | - Takeshi Yamada
- Department of Gastrointestinal Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
| | - Takao Takahashi
- Department of Surgical Oncology, Graduate School of Medicine, Gifu University, Gifu, Japan
| | - Keiji Hirata
- Department of Surgery 1, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Takeshi Nagasaka
- Department of Clinical Oncology, Kawasaki Medical School and Hospital, Okayama, Japan
| | - Kei Ishimaru
- Department of Minimally Invasive Gastroenterology, Ehime University Graduate School of Medicine, Ehime, Japan
| | - Kazuhiro Sakamoto
- Department of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Keiji Koda
- Department of Surgery, Teikyo University Chiba Medical Center, Chiba, Japan
| | - Toshiaki Ishikawa
- Department of Specialized Surgeries, Medical Research Institute, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Ishida
- Department of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Kenji Matsuda
- Second Department of Surgery, School of Medicine, Wakayama Medical University, Wakayama, Japan
| | - Hidekazu Kuramochi
- Department of Chemotherapy, Tokyo Women's Medical University Yachiyo Medical Center, Chiba, Japan
| | - Yoichiro Yoshida
- Department of Gastroenterological Surgery, Fukuoka University Faculty of Medicine, Fukuoka, Japan
| | - Hiromichi Sonoda
- Department of Gastrointestinal Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
| | - Hiroshi Yoshida
- Department of Gastrointestinal Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Tokyo, Japan
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19
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Fountzilas C, Bajor DL, Mukherjee S, Saltzman J, Witkiewicz AK, Maguire O, Minderman H, Nambiar R, Rosenheck HR, Knudsen ES, Muhitch JB, Abrams SI, Wang C, Hutson AD, Attwood K, Hicks KA, Jurcevic JA, Kalinski P, Iyer R, Boland PM. Phase Ib/II Study of Cetuximab plus Pembrolizumab in Patients with Advanced RAS Wild-Type Colorectal Cancer. Clin Cancer Res 2021; 27:6726-6736. [PMID: 34645646 DOI: 10.1158/1078-0432.ccr-21-1650] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/30/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE We evaluated the antitumor efficacy of cetuximab in combination with pembrolizumab in patients with RAS wild-type (RASwt), metastatic colorectal adenocarcinoma (mCRC). PATIENTS AND METHODS In this phase Ib/II study, cetuximab was combined with pembrolizumab in patients with RASwt mCRC with ≥ one prior line of therapy for advanced disease. We analyzed baseline on-treatment tumor tissues for changes in the tumor microenvironment (TME), using flow cytometry and multispectral immunofluorescence. RESULTS Forty-four patients were evaluable for efficacy. The study was negative for the primary efficacy endpoint [overall response rate: 2.6%, 6-month progression-free survival (PFS): 31%; P = 0.52]. Median PFS was 4.1 months [95% confidence interval (CI): 3.9-5.5 months]. No increase in adverse effects was identified. We observed favorable immunomodulation with 47% increase in the number of intratumoral CTLs posttreatment (P = 0.035). These changes were more pronounced in patients with tumor shrinkage (P = 0.05). The TME was characterized by high numbers of TIM3+ and CTLA4+ cells; there were few activated OX40+ cells. PD-L1 expression was higher in pretreatment tumor cells from metastatic sites versus primary tumor samples (P < 0.05). Higher numbers of PD-L1+ tumor cells at baseline were associated with tumor shrinkage (P = 0.04). Analysis of immune populations in the blood demonstrated decreases in PD-1+ memory effector cells (P = 0.04) and granulocytic myeloid-derived suppressor cells (P = 0.03), with simultaneous increases in CD4+/CTLA4+ cells (P = 0.01). CONCLUSIONS The combination of cetuximab and pembrolizumab is inactive in patients with RASwt mCRC, despite its partial local immunologic efficacy. Further development of immuno-oncology combinations with enhanced efficacy and/or targeting additional or alternative immune checkpoints merits investigation.
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Affiliation(s)
| | | | | | | | | | - Orla Maguire
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Hans Minderman
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Ram Nambiar
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | | | - Erik S Knudsen
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | | | - Scott I Abrams
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Chong Wang
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Alan D Hutson
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | | | - Karen A Hicks
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | | | - Pawel Kalinski
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Renuka Iyer
- Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Patrick M Boland
- Rutgers Cancer Institute of New Jersey, New Brunswick, New Jersey
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20
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Stein A, Simnica D, Schultheiß C, Scholz R, Tintelnot J, Gökkurt E, von Wenserski L, Willscher E, Paschold L, Sauer M, Lorenzen S, Riera-Knorrenschild J, Depenbusch R, Ettrich TJ, Dörfel S, Al-Batran SE, Karthaus M, Pelzer U, Waberer L, Hinke A, Bauer M, Massa C, Seliger B, Wickenhauser C, Bokemeyer C, Hegewisch-Becker S, Binder M. PD-L1 targeting and subclonal immune escape mediated by PD-L1 mutations in metastatic colorectal cancer. J Immunother Cancer 2021; 9:jitc-2021-002844. [PMID: 34315821 PMCID: PMC8317124 DOI: 10.1136/jitc-2021-002844] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND In patients with microsatellite stable (MSS) metastatic colorectal cancer (mCRC), immune checkpoint blockade is ineffective, and combinatorial approaches enhancing immunogenicity need exploration. METHODS We treated 43 patients with predominantly microsatellite stable RAS/BRAF wild-type mCRC on a phase II trial combining chemotherapy with the epidermal growth factor receptor antibody cetuximab and the programmed cell death ligand 1 (PD-L1) antibody avelumab. We performed next-generation gene panel sequencing for mutational typing of tumors and liquid biopsy monitoring as well as digital droplet PCR to confirm individual mutations. Translational analyses included tissue immunohistochemistry, multispectral imaging and repertoire sequencing of tumor-infiltrating T cells. Detected PD-L1 mutations were mechanistically validated in CRISPR/Cas9-generated cell models using qRT-PCR, immunoblotting, flow cytometry, complement-dependent cytotoxicity assay, antibody-dependent cytotoxicity by natural killer cell degranulation assay and LDH release assay as well as live cell imaging of T cell mediated tumor cell killing. RESULTS Circulating tumor DNA showed rapid clearance in the majority of patients mirroring a high rate of early tumor shrinkage. In 3 of 13 patients expressing the high-affinity Fcγ receptor 3a (FcγR3a), tumor subclones with PD-L1 mutations were selected that led to loss of tumor PD-L1 by nonsense-mediated RNA decay in PD-L1 K162fs and protein degradation in PD-L1 L88S. As a consequence, avelumab binding and antibody-dependent cytotoxicity were impaired, while T cell killing of these variant clones was increased. Interestingly, PD-L1 mutant subclones showed slow selection dynamics reversing on avelumab withdrawal and patients with such subclones had above-average treatment benefit. This suggested that the PD-L1 mutations mediated resistance to direct antitumor effects of avelumab, while at the same time loss of PD-L1 reduced biological fitness by enhanced T cell killing limiting subclonal expansion. CONCLUSION The addition of avelumab to standard treatment appeared feasible and safe. PD-L1 mutations mediate subclonal immune escape to avelumab in some patients with mCRC expressing high-affinity FcγR3a, which may be a subset experiencing most selective pressure. Future trials evaluating the addition of avelumab to standard treatment in MSS mCRC are warranted especially in this patient subpopulation. TRIAL REGISTRATION NUMBER NCT03174405.
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Affiliation(s)
- Alexander Stein
- Hämatologisch-Onkologische Praxis Eppendorf, Hamburg, Germany.,Department of Oncology and Hematology, Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Donjete Simnica
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Christoph Schultheiß
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Rebekka Scholz
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Joseph Tintelnot
- Department of Oncology and Hematology, Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eray Gökkurt
- Hämatologisch-Onkologische Praxis Eppendorf, Hamburg, Germany
| | - Lisa von Wenserski
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Edith Willscher
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Lisa Paschold
- Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Markus Sauer
- Department of Oncology and Hematology, Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sylvie Lorenzen
- Department of Internal Medicine III (Haematology/Medical Oncology), Technical University of Munich Hospital Rechts der Isar, Munchen, Bayern, Germany
| | | | - Reinhard Depenbusch
- Private Practice Onkodoc GmbH Gütersloh, Gütersloh, Nordrhein-Westfalen, Germany
| | - Thomas J Ettrich
- Department of Internal Medicine I, University Hospital Ulm, Ulm, Baden-Württemberg, Germany
| | - Steffen Dörfel
- Private Practice Onkozentrum Dresden, Dresden, Sachsen, Germany
| | - Salah-Eddin Al-Batran
- Institute of Clinical Cancer Research IKF at Northwest hospital, Frankfurt, Hessen, Germany
| | - Meinolf Karthaus
- Department of Hematology and Oncology, Munich Hospital Neuperlach, Munchen, Bayern, Germany
| | - Uwe Pelzer
- Department of Hematology, Oncology and Tumorimmunology, Charite Universitatsmedizin Berlin, Berlin, Germany
| | - Lisa Waberer
- IKF Klinische Krebsforschung GmbH at Krankenhaus Nordwest, Frankfurt, Hessen, Germany
| | - Axel Hinke
- Clinical Cancer Research Consulting (CCRC), Düsseldorf, Germany
| | - Marcus Bauer
- Institute of Pathology, Martin Luther University Halle Wittenberg, Halle, Sachsen-Anhalt, Germany
| | - Chiara Massa
- Institute of Medical Immunology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Germany
| | - Barbara Seliger
- Institute of Medical Immunology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Germany
| | | | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Penumology, Hubertus Wald University Cancer Center, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Mascha Binder
- Department of Oncology and Hematology, Bone Marrow Transplantation with Section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany .,Department of Internal Medicine IV - Oncology/Hematology, Martin-Luther-Universitat Halle-Wittenberg, Halle, Sachsen-Anhalt, Germany
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21
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Vangala D, Ladigan S, Liffers ST, Noseir S, Maghnouj A, Götze TM, Verdoodt B, Klein-Scory S, Godfrey L, Zowada MK, Huerta M, Edelstein DL, de Villarreal JM, Marqués M, Kumbrink J, Jung A, Schiergens T, Werner J, Heinemann V, Stintzing S, Lindoerfer D, Mansmann U, Pohl M, Teschendorf C, Bernhardt C, Wolters H, Stern J, Usta S, Viebahn R, Admard J, Casadei N, Fröhling S, Ball CR, Siveke JT, Glimm H, Tannapfel A, Schmiegel W, Hahn SA. Secondary resistance to anti-EGFR therapy by transcriptional reprogramming in patient-derived colorectal cancer models. Genome Med 2021; 13:116. [PMID: 34271981 PMCID: PMC8283888 DOI: 10.1186/s13073-021-00926-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 06/21/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The development of secondary resistance (SR) in metastatic colorectal cancer (mCRC) treated with anti-epidermal growth factor receptor (anti-EGFR) antibodies is not fully understood at the molecular level. Here we tested in vivo selection of anti-EGFR SR tumors in CRC patient-derived xenograft (PDX) models as a strategy for a molecular dissection of SR mechanisms. METHODS We analyzed 21 KRAS, NRAS, BRAF, and PI3K wildtype CRC patient-derived xenograft (PDX) models for their anti-EGFR sensitivity. Furthermore, 31 anti-EGFR SR tumors were generated via chronic in vivo treatment with cetuximab. A multi-omics approach was employed to address molecular primary and secondary resistance mechanisms. Gene set enrichment analyses were used to uncover SR pathways. Targeted therapy of SR PDX models was applied to validate selected SR pathways. RESULTS In vivo anti-EGFR SR could be established with high efficiency. Chronic anti-EGFR treatment of CRC PDX tumors induced parallel evolution of multiple resistant lesions with independent molecular SR mechanisms. Mutations in driver genes explained SR development in a subgroup of CRC PDX models, only. Transcriptional reprogramming inducing anti-EGFR SR was discovered as a common mechanism in CRC PDX models frequently leading to RAS signaling pathway activation. We identified cAMP and STAT3 signaling activation, as well as paracrine and autocrine signaling via growth factors as novel anti-EGFR secondary resistance mechanisms. Secondary resistant xenograft tumors could successfully be treated by addressing identified transcriptional changes by tailored targeted therapies. CONCLUSIONS Our study demonstrates that SR PDX tumors provide a unique platform to study molecular SR mechanisms and allow testing of multiple treatments for efficient targeting of SR mechanisms, not possible in the patient. Importantly, it suggests that the development of anti-EGFR tolerant cells via transcriptional reprogramming as a cause of anti-EGFR SR in CRC is likely more prevalent than previously anticipated. It emphasizes the need for analyses of SR tumor tissues at a multi-omics level for a comprehensive molecular understanding of anti-EGFR SR in CRC.
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Affiliation(s)
- Deepak Vangala
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | - Swetlana Ladigan
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | - Sven T Liffers
- Institute of Pathology, Ruhr University of Bochum, Bochum, Germany
- Present Address Division of Solid Tumor Translational Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Soha Noseir
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany
| | - Abdelouahid Maghnouj
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany
| | - Tina-Maria Götze
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany
| | | | - Susanne Klein-Scory
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | - Laura Godfrey
- Bridge Institute of Experimental Tumor Therapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- Division of Solid Tumor Translational Oncology, German Cancer Consortium (DKTK, partner site Essen) and German Cancer Research Center, DKFZ, Heidelberg, Germany
| | - Martina K Zowada
- Translational Functional Cancer Genomics, NCT Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Mario Huerta
- Translational Functional Cancer Genomics, NCT Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT), Dresden, and German Cancer Research Center (DKFZ), Dresden, Germany
| | | | | | - Miriam Marqués
- Epithelial Carcinogenesis Group, Spanish National Cancer Research Centre (CNIO) and CIBERONC, Madrid, Spain
| | - Jörg Kumbrink
- Institute of Pathology, Ludwig Maximilian University (LMU), Munich, Germany
- German Cancer Consortium (DKTK, partner site Munich), Munich, Germany
| | - Andreas Jung
- Institute of Pathology, Ludwig Maximilian University (LMU), Munich, Germany
- German Cancer Consortium (DKTK, partner site Munich), Munich, Germany
| | - Tobias Schiergens
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Jens Werner
- Department of General, Visceral, and Transplantation Surgery, University Hospital, LMU Munich, Munich, Germany
| | - Volker Heinemann
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Stintzing
- Department of Hematology, Oncology, and Tumor Immunology (CCM) Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Doris Lindoerfer
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Ulrich Mansmann
- Institute for Medical Information Processing, Biometry and Epidemiology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Michael Pohl
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | | | | | - Heiner Wolters
- Department of Visceral and General Surgery, St. Josef Hospital, Dortmund, Germany
| | - Josef Stern
- Department of Visceral and General Surgery, St. Josef Hospital, Dortmund, Germany
| | - Selami Usta
- Department of Visceral and General Surgery, St. Josef Hospital, Dortmund, Germany
| | - Richard Viebahn
- Department of Surgery, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | - Jacob Admard
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Nicolas Casadei
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Stefan Fröhling
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Deptartment of Translational Medical Oncology, NCT Heidelberg and German Cancer Research Center, Heidelberg, Germany
| | - Claudia R Ball
- Translational Functional Cancer Genomics, NCT Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT), Dresden, and German Cancer Research Center (DKFZ), Dresden, Germany
- Center for Personalized Oncology, NCT Dresden and University Hospital Carl Gustav Carus Dresden at TU Dresden, Dresden, Germany
- German Cancer Consortium (DKTK), Dresden, Germany
| | - Jens T Siveke
- Bridge Institute of Experimental Tumor Therapy, West German Cancer Center, University Hospital Essen, Essen, Germany
- Division of Solid Tumor Translational Oncology, German Cancer Consortium (DKTK, partner site Essen) and German Cancer Research Center, DKFZ, Heidelberg, Germany
| | - Hanno Glimm
- Translational Functional Cancer Genomics, NCT Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Translational Medical Oncology, National Center for Tumor Diseases (NCT), Dresden, and German Cancer Research Center (DKFZ), Dresden, Germany
- Center for Personalized Oncology, NCT Dresden and University Hospital Carl Gustav Carus Dresden at TU Dresden, Dresden, Germany
- German Cancer Consortium (DKTK), Dresden, Germany
| | - Andrea Tannapfel
- Institute of Pathology, Ruhr University of Bochum, Bochum, Germany
| | - Wolff Schmiegel
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany
| | - Stephan A Hahn
- Department of Molecular GI Oncology, Faculty of Medicine, Ruhr University Bochum, 44780, Bochum, Germany.
- Department of Internal Medicine, Ruhr University Bochum, Knappschaftskrankenhaus, Bochum, Germany.
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22
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Kim SY, Kim K, Cho SH, Chun SM, Tak E, Hong YS, Kim JE, Kim TW. Longitudinal change of genetic variations in cetuximab-treated metastatic colorectal cancer. Cancer Genet 2021; 258-259:27-36. [PMID: 34315006 DOI: 10.1016/j.cancergen.2021.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/16/2021] [Accepted: 06/29/2021] [Indexed: 11/25/2022]
Abstract
Recurrent gene mutations and copy number alterations in cancer patients are presumably associated with resistance to targeted therapy. In the present study, we assessed the gene mutations and copy number alterations that recurrently occurred in cetuximab-treated patients with metastatic colorectal cancer (mCRC). Targeted next-generation sequencing was performed in the tumor samples obtained pre- and postcetuximab treatment to assess the variations that occurred during cetuximab treatment. Moreover, we identified the emergent gene mutations (CDK6, EPHA3, ERCC2, MYC, PCMTD1, PIK3CA, PRIM2, RICTOR, and ZNRF3) and copy number alterations (ARAF, BCL2, BRCA2, EGFR, MYC, and SMAD4) that were recurrently observed only in postprogression samples and not in pretreatment or posttreatment samples from patients revealing clinical response. Furthermore, to identify the feasible candidate variations implicated in treatment resistance, we examined the variants with clonal expansion during treatment and discovered PCBP1 as a variant associated with posttreatment progression. Various recurrent mutations were enriched in the TGF-beta signaling pathway. Collectively, we identified recurrent variations in mCRC samples exhibiting post-cetuximab progression. Additionally, future studies are required to evaluate the therapeutic potential of these variations.
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Affiliation(s)
- Sun Young Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kwoneel Kim
- Department of Biology, Kyung Hee University, Seoul, Republic of Korea
| | - Su Han Cho
- Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul, Republic of Korea
| | - Sung-Min Chun
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Asan Center for Cancer Genome Discovery, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Eunyoung Tak
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yong Sang Hong
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jeong Eun Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Tae Won Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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23
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Petrillo A, Salati M, Trapani D, Ghidini M. Circulating Tumor DNA as a Biomarker for Outcomes Prediction in Colorectal Cancer Patients. Curr Drug Targets 2021; 22:1010-1020. [PMID: 33155906 DOI: 10.2174/1389450121999201103194248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 08/07/2020] [Accepted: 08/23/2020] [Indexed: 12/24/2022]
Abstract
Circulating tumour DNA (ctDNA) is a novel tool that has been investigated in several types of tumours, including colorectal cancer (CRC). In fact, the techniques based on liquid biopsies are proposed as appealing non-invasive alternatives to tissue biopsy, adding more insights into tumour molecular profile, heterogeneity and for cancer detection and monitoring. Additionally, some analysis showed that in CRC patients, ctDNA seems to act as a biomarker able to predict the outcome (prognostic role) and the response to treatments (predictive role). In particular, in the early stage CRC (stage I-III), it could represent a time marker of adjuvant therapy as well as a marker of minimal residual disease and recurrence risk in addition to the already recognized risk factors. In metastatic CRC, the analysis of molecular tumour profile by ctDNA has shown to have high concordance with the tissue biopsy at diagnosis. Additionally, some studies demonstrated that ctDNA level during the treatment was linked with the early response to treatment and prognosis. Finally, the quantitative analysis of ctDNA and copy number alterations may be useful in order to detect resistance to therapy at the time of progression of disease and to help in finding new therapeutic targets.
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Affiliation(s)
| | - Massimiliano Salati
- Department of Oncology and Hematology, University Hospital of Modena, Modena, Italy
| | - Dario Trapani
- Division of Early Drug Development for Innovative Therapies, European Institute of Oncology IRCCS, Milan, Italy
| | - Michele Ghidini
- Oncology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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24
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Oliveres H, Pesántez D, Maurel J. Lessons to Learn for Adequate Targeted Therapy Development in Metastatic Colorectal Cancer Patients. Int J Mol Sci 2021; 22:5019. [PMID: 34065119 PMCID: PMC8126031 DOI: 10.3390/ijms22095019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 05/05/2021] [Indexed: 12/12/2022] Open
Abstract
Insulin-like growth factor 1 receptor (IGF1R) is a receptor tyrosine kinase that regulates cell growth and proliferation. Upregulation of the IGF1R pathway constitutes a common paradigm shared with other receptor tyrosine kinases such as EGFR, HER2, and MET in different cancer types, including colon cancer. The main IGF1R signaling pathways are PI3K-AKT and MAPK-MEK. However, different processes, such as post-translational modification (SUMOylation), epithelial-to-mesenchymal transition (EMT), and microenvironment complexity, can also contribute to intrinsic and acquired resistance. Here, we discuss new strategies for adequate drug development in metastatic colorectal cancer patients.
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Affiliation(s)
- Helena Oliveres
- Translational Genomics and Targeted Therapeutics in Solid Tumors Group, Medical Oncology Department, Hospital Clinic of Barcelona, IDIBAPS, University of Barcelona, 08036 Barcelona, Spain
| | - David Pesántez
- Translational Genomics and Targeted Therapeutics in Solid Tumors Group, Medical Oncology Department, Hospital Clinic of Barcelona, IDIBAPS, University of Barcelona, 08036 Barcelona, Spain
| | - Joan Maurel
- Translational Genomics and Targeted Therapeutics in Solid Tumors Group, Medical Oncology Department, Hospital Clinic of Barcelona, IDIBAPS, University of Barcelona, 08036 Barcelona, Spain
- Gastrointestinal and Pancreatic Oncology Group, Hospital Clínic, IDIBAPS, CIBERehd, University of Barcelona, 08036 Barcelona, Spain
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25
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Jones RP, Pugh SA, Graham J, Primrose JN, Barriuso J. Circulating tumour DNA as a biomarker in resectable and irresectable stage IV colorectal cancer; a systematic review and meta-analysis. Eur J Cancer 2021; 144:368-381. [PMID: 33422803 DOI: 10.1016/j.ejca.2020.11.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 11/01/2020] [Accepted: 11/15/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND For patients with metastatic colorectal cancer, stratification for treatment (surgery or chemotherapy) is often based on crude clinicopathological characteristics like tumour size and number of lesions. Circulating tumour DNA (ctDNA) acts as a potential biomarker of disease trajectory and biology, allowing better stratification. This study aims to systematically review ctDNA in stage IV colorectal cancer to assess its potential role as a prospective biomarker to guide management decisions. METHODS A literature search was performed to identify studies where the measurement of ctDNA in stage IV colorectal cancer was correlated with a clinical outcome (radiological response, secondary resection rate, PFS, DFS or OS). RESULTS Twenty-eight studies were included, reporting on 2823 patients. Circulating tumour DNA was detectable in between 80% and 90% of patients prior to treatment. Meta-analysis identified a strong correlation between detectable ctDNA after treatment (surgery or chemotherapy) and overall survival (HR 2.2, 95% CI 1.79-2.69, p < 0.00001), as well as progression-free survival (HR 3.15, 95% CI 2.10-4.73, p < 0.00001). ctDNA consistently offered an early marker of long-term prognosis in irresectable disease, with changes after one cycle of systemic therapy demonstrating prognostic value. In resectable disease treated with curative intent, detection of ctDNA offered a lead time over radiological recurrence of 10 months. CONCLUSION Circulating tumour DNA is detectable in the majority of resectable and irresectable patients. The presence of ctDNA is clearly associated with shorter overall survival, with changes in ctDNA an early biomarker of adverse disease behaviour. Prospective trials are essential to test its clinical efficacy.
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Affiliation(s)
- Robert P Jones
- School of Cancer Studies, Institute of Translational Medicine, University of Liverpool, Liverpool, UK; Department of Hepatobiliary Surgery, Liverpool University Teaching Hospitals NHS Foundation Trust, Liverpool, UK.
| | | | - Janet Graham
- Beatson West of Scotland Cancer Centre, Glasgow, UK; University of Glasgow, UK
| | | | - Jorge Barriuso
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, UK; Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK
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26
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Loree JM, Dowers A, Tu D, Jonker DJ, Edelstein DL, Quinn H, Holtrup F, Price T, Zalcberg JR, Moore MJ, Karapetis CS, O'Callaghan CJ, Waring P, Kennecke HF, Hamilton SR, Kopetz S. Expanded Low Allele Frequency RAS and BRAF V600E Testing in Metastatic Colorectal Cancer as Predictive Biomarkers for Cetuximab in the Randomized CO.17 Trial. Clin Cancer Res 2020; 27:52-59. [PMID: 33087330 DOI: 10.1158/1078-0432.ccr-20-2710] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/31/2020] [Accepted: 10/16/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE Expanded RAS/BRAF mutations have not been assessed as predictive for single-agent cetuximab in metastatic colorectal cancer (mCRC), and low mutant allele frequency (MAF) mutations are of unclear significance. We aimed to establish cetuximab efficacy in optimally selected patients using highly sensitive beads, emulsion, amplification, and magnetics (BEAMing) analysis, capable of detecting alterations below standard clinical assays. PATIENTS AND METHODS CO.17 trial compared cetuximab versus best supportive care (BSC) in RAS/BRAF-unselected mCRC. We performed RAS/BRAF analysis on microdissected tissue of 242 patients in CO.17 trial using BEAMing for KRAS/NRAS (codons 12/13/59/61/117/146) and BRAF V600E. Patients without BEAMing but with previous Sanger sequencing-detected mutations were included. RESULTS KRAS, NRAS, and BRAF mutations were present in 53%, 4%, and 3% of tumors, respectively. Cetuximab improved overall survival [OS; HR, 0.51; 95% confidence interval (CI), 0.32-0.81; P = 0.004] and progression-free survival (PFS; HR, 0.25; 95% CI, 0.15-0.41; P < 0.0001) compared with BSC in RAS/BRAF wild-type patients. Cetuximab did not improve OS/PFS for KRAS-, NRAS-, or BRAF-mutated tumors, and tests of interaction confirmed expanded KRAS (P = 0.0002) and NRAS (P = 0.006) as predictive, while BRAF mutations were not (P = 0.089). BEAMing identified 14% more tumors as RAS mutant than Sanger sequencing, and cetuximab lacked activity in these patients. Mutations at MAF < 5% were noted in 6 of 242 patients (2%). One patient with a KRAS A59T mutation (MAF = 2%) responded to cetuximab. More NRAS than KRAS mutations were low MAF (OR, 20.50; 95% CI, 3.88-96.85; P = 0.0038). CONCLUSIONS We establish single-agent cetuximab efficacy in optimally selected patients and show that subclonal RAS/BRAF alterations are uncommon and remain of indeterminate significance.
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Affiliation(s)
- Jonathan M Loree
- BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | - Anthony Dowers
- The University of Melbourne, Melbourne, Victoria, Australia
| | - Dongsheng Tu
- Canadian Cancer Trials Group, Kingston, Ontario, Canada
| | - Derek J Jonker
- The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | | | | | | | - Timothy Price
- Queen Elizabeth Hospital, Adelaide, South Australia, Australia
| | | | - Malcolm J Moore
- BC Cancer, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Paul Waring
- The University of Melbourne, Melbourne, Victoria, Australia
| | | | | | - Scott Kopetz
- University of Texas, MD Anderson Cancer Center, Houston, Texas.
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27
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Price T, Ang A, Boedigheimer M, Kim TW, Li J, Cascinu S, Ruff P, Satya Suresh A, Thomas A, Tjulandin S, Peeters M. Frequency of S492R mutations in the epidermal growth factor receptor: analysis of plasma DNA from patients with metastatic colorectal cancer treated with panitumumab or cetuximab monotherapy. Cancer Biol Ther 2020; 21:891-898. [PMID: 33026965 PMCID: PMC7583702 DOI: 10.1080/15384047.2020.1798695] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Antibodies against epidermal growth factor receptor (EGFR), panitumumab, a fully human monoclonal antibody, and cetuximab, a human/mouse chimeric monoclonal antibody, have shown clinical efficacy in metastatic colorectal cancer (mCRC). In the phase 3 noninferiority ASPECCT (ClinicalTrials.gov, NCT01001377) study, panitumumab was demonstrated to be noninferior to cetuximab and provided a similar overall survival benefit for patients with chemotherapy-refractory wild-type KRAS exon 2 mCRC. However, some patients eventually develop resistance to anti-EGFR therapy. EGFR p.S492R mutation was previously identified as conferring resistance to cetuximab, but not to panitumumab. Methods This biomarker study analyzed plasma samples from ASPECCT collected at both baseline and posttreatment. Results No EGFR p.S492R mutations were identified at baseline; however, after treatment the EGFR p.S492R mutation was detected in 1% of patients treated with panitumumab versus 16% of those treated with cetuximab, supporting that, in a large population, this mutation is more likely to be induced by cetuximab than by panitumumab. There were, however, no significant differences in progression-free survival or overall survival between patients who were wild-type compared with those with the S492R mutation within the cetuximab arm or the overall population. Conclusions These results may support targeting treatment to small patient subgroups based on the presence of emerging EGFR mutations and provide a molecular rationale for rechallenging with a different anti-EGFR agent in patients who develop resistance. Prospective studies are needed to evaluate the efficacy of panitumumab in the EGFR p.S492R mutant population.
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Affiliation(s)
- Timothy Price
- Clinical Oncology Research and Haematology and Medical Oncology Service Departments, The Queen Elizabeth Hospital and University of Adelaide, Woodville, Australia
| | - Agnes Ang
- Clinical Biomarkers, Amgen Inc , Thousand Oaks, CA, USA
| | | | - Tae Won Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, South Korea
| | - Jin Li
- Department of Oncology, Tongji University East Hospital , Shanghai, China
| | - Stefano Cascinu
- Department of Medical Oncology, Universita Politecnica delle Marche , Ancona, Italy
| | - Paul Ruff
- Faculty of Health Sciences, University of Witwatersrand , Johannesburg, South Africa
| | | | - Anne Thomas
- Department of Oncology, University of Leicester , Leicester, UK
| | - Sergei Tjulandin
- Department of Clinical Pharmacology and Chemotherapy, N. N. Blokhin Cancer Research Center of RAMS , Moscow, Russia
| | - Marc Peeters
- Department of Oncology, Antwerp University Hospital , Edegem, Belgium
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28
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Detection of ctDNA with Personalized Molecular Barcode NGS and Its Clinical Significance in Patients with Early Breast Cancer. Transl Oncol 2020; 13:100787. [PMID: 32473569 PMCID: PMC7260577 DOI: 10.1016/j.tranon.2020.100787] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 02/02/2023] Open
Abstract
We attempted to detect circulating tumor DNA (ctDNA), taking advantage of molecular barcode next-generation sequencing (MB-NGS), which can be more easily customized to detect a variety of mutations with a high sensitivity than PCR-based methods. Sequencing with a gene panel consisting of the 13 most frequently mutated genes in breast tumors from stage I or II patients revealed 95 somatic mutations in the 12 genes in 62% (62/100) of tumors. Then, plasma DNA from each patient (n = 62) before surgery was analyzed via MB-NGS customized to each somatic mutation, resulting in the detection of ctDNA in 16.1% (10/62) of patients. ctDNA was significantly associated with biologically aggressive phenotypes, including large tumor size (P = .004), positive lymph node (P = .009), high histological grade (P < .001), negative ER (P = .018), negative PR (P = .017), and positive HER2 (P = .046). Furthermore, distant disease-free survival was significantly worse in patients with ctDNA (n = 10) than those without ctDNA (n = 52) (P < .001). Our results demonstrate that MB-NGS personalized to each mutation can detect ctDNA with a high sensitivity in early breast cancer patients at diagnosis, and it seems to have a potential to serve as a clinically useful tumor marker for predicting their prognosis.
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29
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Emerging RAS, BRAF, and EGFR mutations in cell-free DNA of metastatic colorectal patients are associated with both primary and secondary resistance to first-line anti-EGFR therapy. Int J Clin Oncol 2020; 25:1523-1532. [PMID: 32394048 DOI: 10.1007/s10147-020-01691-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/27/2020] [Indexed: 12/17/2022]
Abstract
Oncogenic RAS mutations are negative biomarkers of response to epidermal growth factor receptor (EGFR) blockade. RAS mutations are usually detected in biopsies of primary colorectal tumors. However, the genomic profiles of primary tumors and metastases are not always concordant, and chemotherapeutic agents can alter the tumor molecular landscape. Cell-free DNA (cfDNA) is a novel tool to detect molecular heterogeneity. This study evaluated the clinical utility of cfDNA to predict primary or secondary resistance to EGFR blockade in patients with metastatic colorectal cancer. Thirty metastatic colorectal cancer patients without RAS and BRAF mutations were prospectively enrolled and treated with cytotoxic agents and EGFR blockade as first-line therapy. cfDNA was analyzed for the presence of RAS, BRAF, and EGFR (S492R) point mutations before initiating chemotherapy and every 2 months during chemotherapy. The analysis was performed in 223 plasma samples from all 30 patients. Of the 30 patients, five had RAS mutations in their cfDNA before starting chemotherapy and did not respond. Twenty-four of the remaining 25 patients without cfDNA RAS mutations had a response. Twenty of the 24 responders developed secondary resistance and cfDNA RAS mutations were found in 17 of the 20. cfDNA BRAF mutations were found in seven, and EGFR mutations were found in eight of the 20 patients. Emerging RAS, BRAF, and EGFR mutations occurred in patients with primary and secondary resistance to EGFR blockade. The detection of these mutations in cfDNA is a promising approach to predict treatment response and secondary resistance.
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30
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Pappas-Gogos G, Baltagiannis EG, Kyrochristos ID, Ziogas DE, Goussia A, Mitsis M, Roukos DH. Predictive and patient-monitoring biomarkers: precision in the management of colorectal cancer. Biomark Med 2020; 14:335-339. [PMID: 32250157 DOI: 10.2217/bmm-2020-0025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Georgios Pappas-Gogos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece.,Department of Surgery, University Hospital of Ioannina, Ioannina, Greece
| | - Evangelos G Baltagiannis
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece.,Department of Surgery, University Hospital of Ioannina, Ioannina, Greece
| | - Ioannis D Kyrochristos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece.,Department of Surgery, University Hospital of Ioannina, Ioannina, Greece
| | - Demosthenes E Ziogas
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece.,Department of Surgery, 'G Hatzikosta' General Hospital, Ioannina, Greece
| | - Anna Goussia
- Department of Pathology, University Hospital of Ioannina, Ioannina, Greece
| | - Michail Mitsis
- Department of Surgery, University Hospital of Ioannina, Ioannina, Greece
| | - Dimitrios H Roukos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece.,Department of Surgery, University Hospital of Ioannina, Ioannina, Greece.,Department of Systems Biology, Biomedical Research Foundation of the Academy of Athens (BRFAA), Athens, Greece
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31
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Li S, Lai H, Liu J, Liu Y, Jin L, Li Y, Liu F, Gong Y, Guan Y, Yi X, Shi Q, Cai Z, Li Q, Li Y, Zhu M, Wang J, Yang Y, Wei W, Yin D, Song E, Liu Q. Circulating Tumor DNA Predicts the Response and Prognosis in Patients With Early Breast Cancer Receiving Neoadjuvant Chemotherapy. JCO Precis Oncol 2020; 4:1900292. [PMID: 32923909 PMCID: PMC7450928 DOI: 10.1200/po.19.00292] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2020] [Indexed: 12/16/2022] Open
Abstract
PURPOSE Many patients with breast cancer still relapse after curative treatment. How to identify the ones with high relapse risk remains a critical problem. Circulating tumor DNA (ctDNA) has recently become a promising marker to monitor tumor burden. Whether ctDNA can be used to predict the response and prognosis in patients with breast cancer receiving neoadjuvant chemotherapy (NAC) is unknown. Our study aimed to evaluate the clinical value of the presence and dynamic change of ctDNA to predict the tumor response and prognosis in patients with breast cancer treated with NAC. MATERIALS AND METHODS Fifty-two patients with early breast cancer who underwent NAC were prospectively enrolled. Serial plasma samples before, during, and after NAC and paired tumor biopsies were harvested and subjected to deep targeted sequencing using a large next-generation sequencing panel that covers 1,021 cancer-related genes. RESULTS Positive baseline ctDNA was detected in 21 of 44 patients before NAC. Most patients with positive ctDNA had one or more mutations confirmed in paired primary tumor. The ctDNA level after 2 cycles of NAC was predictive of local tumor response after all cycles of NAC (area under the curve, 0.81; 95% CI, 0.61 to 1.00). ctDNA tracking during NAC outperformed imaging in predicting the overall response to NAC. More importantly, positive baseline ctDNA is significantly associated with worse disease-free survival (P = .011) and overall survival (P = .004) in patients with early breast cancer, especially in estrogen receptor–negative patients. CONCLUSION Our study demonstrated that ctDNA can be used to predict tumor response to NAC and prognosis in early breast cancer, providing information to tailor an individual’s therapeutic regimen.
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Affiliation(s)
- Shunying Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongna Lai
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jieqiong Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yujie Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liang Jin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yudong Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fengtao Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | | | | | - Xin Yi
- Geneplus-Beijing, Beijing, China
| | - Qianfeng Shi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zijie Cai
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qian Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mengdi Zhu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingru Wang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yaping Yang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Wei
- Department of Breast and Thyroid Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Dong Yin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Erwei Song
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiang Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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32
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Kim SY, Kim TW. Current challenges in the implementation of precision oncology for the management of metastatic colorectal cancer. ESMO Open 2020; 5:e000634. [PMID: 32188714 PMCID: PMC7078672 DOI: 10.1136/esmoopen-2019-000634] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/28/2019] [Accepted: 01/02/2020] [Indexed: 12/21/2022] Open
Abstract
Over the last few decades, molecularly targeted agents have been used for the treatment of metastatic colorectal cancer. They have made remarkable contributions to prolonging the lives of patients. The emergence of several biomarkers and their introduction to the clinic have also aided in guiding such treatment. Recently, next-generation sequencing (NGS) has enabled clinicians to identify these biomarkers more easily and reliably. However, there is considerable uncertainty in interpreting and implementing the vast amount of information from NGS. The clinical relevance of biomarkers other than NGS are also subjects of debate. This review covers controversial issues and recent findings on such therapeutics and their molecular targets, including VEGF, EGFR, BRAF, HER2, RAS, actionable fusions, Wnt pathway and microsatellite instability for comprehensive understanding of obstacles on the road to precision oncology in metastatic colorectal cancer.
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Affiliation(s)
- Sun Young Kim
- Department of Oncology, Asan Medical Center, University of Ulsan, College of Medicine, Songpa-gu, Seoul, Republic of Korea
| | - Tae Won Kim
- Department of Oncology, Asan Medical Center, University of Ulsan, College of Medicine, Songpa-gu, Seoul, Republic of Korea
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33
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Maurel J, Alonso V, Escudero P, Fernández-Martos C, Salud A, Méndez M, Gallego J, Rodriguez JR, Martín-Richard M, Fernández-Plana J, Manzano H, Méndez JC, Zanui M, Falcó E, Gil-Raga M, Aparicio J, Feliu J, García-Albéniz X, Torres F, Rojo F, Bellosillo B, Mendiola M, Fernández V, Reig O, Claes B, Maertens G, Sablon E, Jacobs B, Montagut C. Clinical Impact of Circulating Tumor RAS and BRAF Mutation Dynamics in Patients With Metastatic Colorectal Cancer Treated With First-Line Chemotherapy Plus Anti-Epidermal Growth Factor Receptor Therapy. JCO Precis Oncol 2019; 3:1-16. [PMID: 35100697 DOI: 10.1200/po.18.00289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
PURPOSE RAS and BRAF mutations can be detected as a mechanism of acquired resistance in circulating tumor (ct) DNA in patients with metastatic colorectal cancer treated with anti-epidermal growth factor receptor therapy. METHODS RAS and BRAF mutational status was assessed in ctDNA in a baseline plasma sample and a serum sample collected at the time of the last available determination (named secondary extraction) from patients with KRAS exon 2 wild-type metastatic colorectal cancer treated in two first-line prospective biomarker-designed clinical trials (PULSE, ClinicalTrials.gov identifier: NCT01288339; and POSIBA, ClincialTrials.gov identifier: NCT01276379). RESULTS Analysis of extended RAS and BRAF in tissue and plasma from 178 patients with KRAS exon 2 wild-type metastatic colorectal cancer showed a sensitivity of 64.1% and a specificity of 90%. The median overall survival (OS) of baseline patients with RAS and BRAF mutations in ctDNA was 22.3 months (95% CI, 15.6 to 29 months) and 8.9 months (95% CI, 6.3 to 11.4 months), respectively, which was significantly inferior to the median OS of 40.4 months (95% CI, 35.9 to 44.9 months) in two patients with wild-type disease (P < .001). Acquisition of RAS/BRAF mutations occurred in nine of 63 patients (14%) with progressive disease (PD; ie, blood draw within 1 month before PD or after PD) compared with six of 73 patients (8%) with no PD or blood extraction for ctDNA analysis before 1 month of PD (P = .47). Median OS in patients with RAS/BRAF acquisition was 23.9 months (95% CI, 19.7 to 27.9 months) compared with 40.6 months (95% CI, not reached to not reached) in patients who remained free of mutations (P = .016). CONCLUSION Our results confirm that baseline RAS and BRAF testing in ctDNA discriminates survival. The emergence of RAS/BRAF mutations has limited relevance for the time to progression to anti-epidermal growth factor receptor therapy.
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Affiliation(s)
- Joan Maurel
- Hospital Clínic of Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jaime Feliu
- Hospital Universitario La Paz, Madrid, Spain
| | | | | | | | | | | | | | - Oscar Reig
- Hospital Clínic of Barcelona, IDIBAPS, University of Barcelona, Barcelona, Spain
| | | | | | | | | | - Clara Montagut
- Hospital del Mar Medical Research Institute, Barcelona, Spain
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Reece M, Saluja H, Hollington P, Karapetis CS, Vatandoust S, Young GP, Symonds EL. The Use of Circulating Tumor DNA to Monitor and Predict Response to Treatment in Colorectal Cancer. Front Genet 2019; 10:1118. [PMID: 31824558 PMCID: PMC6881479 DOI: 10.3389/fgene.2019.01118] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/16/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Colorectal cancer is one of the most common cancers worldwide and has a high mortality rate following disease recurrence. Treatment efficacy is maximized by providing tailored cancer treatment, ideally involving surgical resection and personalized neoadjuvant and adjuvant therapies, including chemotherapy, radiotherapy and increasingly, targeted therapy. Early detection of recurrence or disease progression results in more treatable disease and is essential to improving survival outcomes. Recent advances in the understanding of tumor genetics have resulted in the discovery of circulating tumor DNA (ctDNA). A growing body of evidence supports the use of these sensitive biomarkers in detecting residual disease and diagnosing recurrence as well as enabling targeted and tumor-specific adjuvant therapies. Methods: A literature search in Pubmed was performed to identify all original articles preceding April 2019 that utilize ctDNA for the purpose of monitoring response to colorectal cancer treatment. Results: Ninety-two clinical studies were included. These studies demonstrate that ctDNA is a reliable measure of tumor burden. Studies show the utility of ctDNA in assessing the adequacy of surgical tumor clearance and changes in ctDNA levels reflect response to systemic treatments. ctDNA can be used in the selection of targeted treatments. The reappearance or increase in ctDNA, as well as the emergence of new mutations, correlates with disease recurrence, progression, and resistance to therapy, with ctDNA measurement allowing more sensitive monitoring than currently used clinical tools. Conclusions: ctDNA shows enormous promise as a sensitive biomarker for monitoring response to many treatment modalities and for targeting therapy. Thus, it is emerging as a new way for guiding treatment decisions-initiating, altering, and ceasing treatments, or prompting investigation into the potential for residual disease. However, many potentially useful ctDNA markers are available and more work is needed to determine which are best suited for specific purposes and for improving specific outcomes.
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Affiliation(s)
- Mifanwy Reece
- Colorectal Surgery, Division of Surgery & Perioperative Medicine, Flinders Medical Centre, Bedford Park, SA, Australia
| | - Hariti Saluja
- Department of Medicine, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia.,Flinders Centre for Innovation in Cancer, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | - Paul Hollington
- Colorectal Surgery, Division of Surgery & Perioperative Medicine, Flinders Medical Centre, Bedford Park, SA, Australia
| | - Christos S Karapetis
- Flinders Centre for Innovation in Cancer, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia.,Department of Medical Oncology, Flinders Medical Centre, Bedford Park, SA, Australia
| | - Sina Vatandoust
- Department of Medical Oncology, Flinders Medical Centre, Bedford Park, SA, Australia
| | - Graeme P Young
- Flinders Centre for Innovation in Cancer, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia
| | - Erin L Symonds
- Flinders Centre for Innovation in Cancer, College of Medicine and Public Health, Flinders University, Bedford Park, SA, Australia.,Bowel Health Service, Flinders Medical Centre, Bedford Park, SA, Australia
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Kyrochristos ID, Ziogas DE, Goussia A, Glantzounis GK, Roukos DH. Bulk and Single-Cell Next-Generation Sequencing: Individualizing Treatment for Colorectal Cancer. Cancers (Basel) 2019; 11:cancers11111809. [PMID: 31752125 PMCID: PMC6895993 DOI: 10.3390/cancers11111809] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 12/24/2022] Open
Abstract
The increasing incidence combined with constant rates of early diagnosis and mortality of colorectal cancer (CRC) over the past decade worldwide, as well as minor overall survival improvements in the industrialized world, suggest the need to shift from conventional research and clinical practice to the innovative development of screening, predictive and therapeutic tools. Explosive integration of next-generation sequencing (NGS) systems into basic, translational and, more recently, basket trials is transforming biomedical and cancer research, aiming for substantial clinical implementation as well. Shifting from inter-patient tumor variability to the precise characterization of intra-tumor genetic, genomic and transcriptional heterogeneity (ITH) via multi-regional bulk tissue NGS and emerging single-cell transcriptomics, coupled with NGS of circulating cell-free DNA (cfDNA), unravels novel strategies for therapeutic response prediction and drug development. Remarkably, underway and future genomic/transcriptomic studies and trials exploring spatiotemporal clonal evolution represent most rational expectations to discover novel prognostic, predictive and therapeutic tools. This review describes latest advancements and future perspectives of integrated sequencing systems for genome and transcriptome exploration to overcome unmet research and clinical challenges towards Precision Oncology.
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Affiliation(s)
- Ioannis D. Kyrochristos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, 45110 Ioannina, Greece; (I.D.K.); (D.E.Z.)
- Department of Surgery, Ioannina University Hospital, 45500 Ioannina, Greece;
| | - Demosthenes E. Ziogas
- Centre for Biosystems and Genome Network Medicine, Ioannina University, 45110 Ioannina, Greece; (I.D.K.); (D.E.Z.)
- Department of Surgery, ‘G. Hatzikosta’ General Hospital, 45001 Ioannina, Greece
| | - Anna Goussia
- Department of Pathology, Ioannina University Hospital, 45500 Ioannina, Greece;
| | | | - Dimitrios H. Roukos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, 45110 Ioannina, Greece; (I.D.K.); (D.E.Z.)
- Department of Surgery, Ioannina University Hospital, 45500 Ioannina, Greece;
- Department of Systems Biology, Biomedical Research Foundation of the Academy of Athens (BRFAA), 11527 Athens, Greece
- Correspondence: ; Tel.: +302651005572
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Kastrisiou M, Zarkavelis G, Pentheroudakis G, Magklara A. Clinical Application of Next-Generation Sequencing as A Liquid Biopsy Technique in Advanced Colorectal Cancer: A Trick or A Treat? Cancers (Basel) 2019; 11:E1573. [PMID: 31623125 PMCID: PMC6826585 DOI: 10.3390/cancers11101573] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/01/2019] [Accepted: 10/13/2019] [Indexed: 12/24/2022] Open
Abstract
Owing to its advantages over prior relevant technologies, massive parallel or next-generation sequencing (NGS) is rapidly evolving, with growing applications in a wide range of human diseases. The burst in actionable molecular alterations in many cancer types advocates for the practicality of using NGS in the clinical setting, as it permits the parallel characterization of multiple genes in a cost- and time-effective way, starting from low-input DNA. In advanced clinical practice, the oncological management of colorectal cancer requires prior knowledge of KRAS, NRAS, and BRAF status, for the design of appropriate therapeutic strategies, with more gene mutations still surfacing as potential biomarkers. Tumor heterogeneity, as well as the need for serial gene profiling due to tumor evolution and the emergence of novel genetic alterations, have promoted the use of liquid biopsies-especially in the form of circulating tumor DNA (ctDNA)-as a promising alternative to tissue molecular analysis. This review discusses recent studies that have used plasma NGS in advanced colorectal cancer and summarizes the clinical applications, as well as the technical challenges involved in adopting this technique in a clinically beneficial oncological practice.
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Affiliation(s)
- Myrto Kastrisiou
- Laboratory of Clinical Chemistry, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.
- Department of Medical Oncology, University General Hospital of Ioannina, 45500 Ioannina, Greece.
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), 45444 Ioannina, Greece.
| | - George Zarkavelis
- Department of Medical Oncology, University General Hospital of Ioannina, 45500 Ioannina, Greece.
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), 45444 Ioannina, Greece.
| | - George Pentheroudakis
- Department of Medical Oncology, University General Hospital of Ioannina, 45500 Ioannina, Greece.
- Society for Study of Clonal Heterogeneity of Neoplasia (EMEKEN), 45444 Ioannina, Greece.
| | - Angeliki Magklara
- Laboratory of Clinical Chemistry, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110 Ioannina, Greece.
- Department of Biomedical Research, Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology-Hellas, 45110 Ioannina, Greece.
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Kyrochristos ID, Roukos DH. Comprehensive intra-individual genomic and transcriptional heterogeneity: Evidence-based Colorectal Cancer Precision Medicine. Cancer Treat Rev 2019; 80:101894. [PMID: 31518831 DOI: 10.1016/j.ctrv.2019.101894] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 12/14/2022]
Abstract
Despite advances in translating conventional research into multi-modal treatment for colorectal cancer (CRC), therapeutic resistance and relapse remain unresolved in advanced resectable and, particularly, non-resectable disease. Genome and transcriptome sequencing and editing technologies, coupled with interaction mapping and machine learning, are transforming biomedical research, representing the most rational hope to overcome unmet research and clinical challenges. Rapid progress in both bulk and single-cell next-generation sequencing (NGS) analyses in the identification of primary and metastatic intratumor genomic and transcriptional heterogeneity (ITH) and the detection of circulating cell-free DNA (cfDNA) alterations is providing critical insight into the origins and spatiotemporal evolution of genomic clones responsible for early and late therapeutic resistance and relapse. Moreover, DNA and RNA editing pave new avenues towards the discovery of novel drug targets. Breakthrough combinations of sequencing and editing systems with technologies exploring dynamic interaction networks within pioneering studies could delineate how coding and non-coding mutations perturb regulatory networks and gene expression. This review discusses latest data on genomic and transcriptomic landscapes in time and space, as well as early-phase clinical trials on targeted drug combinations, highlighting the transition from research to clinical Colorectal Cancer Precision Medicine, through non-invasive screening, individualized drug response prediction and development of multiple novel drugs. Future studies exploring the potential to target key transcriptional drivers and regulators will contribute to the next-generation pharmaceutical controllability of multi-layered aberrant transcriptional biocircuits.
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Affiliation(s)
- Ioannis D Kyrochristos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece; Department of Surgery, Ioannina University Hospital, Ioannina, Greece
| | - Dimitrios H Roukos
- Centre for Biosystems and Genome Network Medicine, Ioannina University, Ioannina, Greece; Department of Surgery, Ioannina University Hospital, Ioannina, Greece; Department of Systems Biology, Biomedical Research Foundation of the Academy of Athens (BRFAA), Athens, Greece.
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Taieb J, Jung A, Sartore-Bianchi A, Peeters M, Seligmann J, Zaanan A, Burdon P, Montagut C, Laurent-Puig P. The Evolving Biomarker Landscape for Treatment Selection in Metastatic Colorectal Cancer. Drugs 2019; 79:1375-1394. [PMID: 31347092 PMCID: PMC6728290 DOI: 10.1007/s40265-019-01165-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The approval of targeted therapies for metastatic colorectal cancer (mCRC) has led to important improvements in patient outcomes. However, it is still necessary to increase individualisation of treatments based on tumour genetic profiles to optimise efficacy, while minimising toxicity. As such, there is currently great focus on the discovery and validation of further biomarkers in mCRC, with many new potential prognostic and predictive markers being identified alongside developments in patient molecular profiling technologies. Here, we review data for validated and emerging biomarkers impacting treatment strategies in mCRC. We completed a structured literature search of the PubMed database to identify relevant publications, limiting for English-language publications published between 1 January 2014 and 11 July 2018. In addition, we performed a manual search of the key general oncology and CRC-focused congresses to identify abstracts reporting emerging mCRC biomarker data, and of ClinicalTrials.gov to identify ongoing clinical trials investigating emerging biomarkers in mCRC and/or molecular-guided clinical trials. There is solid evidence supporting the use of BRAF status as a prognostic biomarker and DYPD, UGT1A1, RAS, and microsatellite instability as predictive biomarkers in mCRC. There are a number of emerging biomarkers that may prove to be clinically relevant in the future to have prognostic (HPP1 methylation), predictive (HER3, microRNAs, anti-angiogenic markers, and CRC intrinsic subtypes), or both prognostic and predictive values (HER2, CpG island methylator phenotype, tumour mutational load, gene fusions, and consensus molecular subtypes). As such, new biomarker-led treatment strategies in addition to anti-epidermal growth factor receptor and anti-angiogenetic treatments are being explored. Biomarkers that are not recommended to be tested in clinical practice or are unlikely to be imminently clinically relevant for mCRC include thymidylate transferase, ERCC1, PIK3CA, and PTEN. We highlight the clinical utility of existing and emerging biomarkers in mCRC and provide recommended treatment strategies according to the biomarker status. An update on ongoing molecular-guided clinical trials is also provided.
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Affiliation(s)
- Julien Taieb
- Sorbonne Paris Cité, Paris Descartes University, Georges Pompidou European Hospital, Paris, France.
| | - Andreas Jung
- Pathology Institute, Ludwig Maximilians University of Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andrea Sartore-Bianchi
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Marc Peeters
- Department of Oncology, Antwerp University Hospital/Antwerp University, Edegem, Belgium
| | - Jenny Seligmann
- Division of Cancer Studies and Pathology, St James's Institute of Oncology, Leeds, UK
| | - Aziz Zaanan
- Sorbonne Paris Cité, Paris Descartes University, Georges Pompidou European Hospital, Paris, France
| | - Peter Burdon
- European Medical, Amgen (Europe) GmbH, Rotkreuz, Switzerland
| | - Clara Montagut
- Medical Oncology Department, Hospital del Mar-IMIM, CIBERONC, HM Delfos, Barcelona, Spain
| | - Pierre Laurent-Puig
- Sorbonne Paris Cité, Paris Descartes University, Georges Pompidou European Hospital, Paris, France
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PIK3CA mutations early persistence in cell-free tumor DNA as a negative prognostic factor in metastatic breast cancer patients treated with hormonal therapy. Breast Cancer Res Treat 2019; 177:659-667. [PMID: 31297647 DOI: 10.1007/s10549-019-05349-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/04/2019] [Indexed: 10/26/2022]
Abstract
PURPOSE The identification of biomarkers of hormonal therapy (HT) failure would allow tailored monitoring in metastatic breast cancer (mBC) patients. PIK3CA gene mutation is one of the most frequent events in mBC and is associated with HT resistance. We evaluated the early prognostic value of cell-free DNA (cfDNA) PIK3CA detection in first-line HT-treated mBC patients. METHODS Between June 2012 and January 2014, 39 patients were prospectively included in a dedicated clinical trial (NCT01612871). Blood sampling was performed before (M0) and 4 weeks (M1), 3 months (M3) and 6 months (M6) after HT initiation, and at tumor progression. Patients were followed until progression or until the end of the study (2 years). Mutation detection was performed using droplet-based digital PCR (ddPCR). Progression-free survival (PFS) was used as primary endpoint. RESULTS Median age at inclusion was 63 years (range 40-86). Most patients (34/39) received an aromatase inhibitor and presented a non-measurable disease (71.8%). PIK3CA mutations were reported in 10 (27.8%) and 5 (14.3%) cases at M0 and M1, respectively. The persistence of a detectable circulating mutation at M1 was highly correlated with a worse progression-free survival (PFS), rate at 1 year: 40% versus 76.7%; p = 0.0053). CONCLUSIONS Four-week persistence of cfDNA PIK3CA mutation appears highly correlated with PFS. TRIAL REGISTRATION NCT01612871, registered on June 6th, 2012; https://clinicaltrials.gov/ct2/show/NCT01612871 .
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Battaglin F, Puccini A, Ahcene Djaballah S, Lenz HJ. The impact of panitumumab treatment on survival and quality of life in patients with RAS wild-type metastatic colorectal cancer. Cancer Manag Res 2019; 11:5911-5924. [PMID: 31388315 PMCID: PMC6607986 DOI: 10.2147/cmar.s186042] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 06/11/2019] [Indexed: 12/20/2022] Open
Abstract
Panitumumab is a fully human monoclonal antibody targeting the epidermal growth factor receptor (EGFR). It is currently approved for the treatment of RAS wild-type (WT) metastatic colorectal cancer (mCRC) in combination with chemotherapy in first- and second-line and as monotherapy in chemorefractory patients. This review will provide an overview of main efficacy data on panitumumab from its early development up to latest evidences, including novel perspectives on predictive biomarkers of anti-EGFRs efficacy and mechanisms of secondary resistance. Quality of life (QoL) related issues and panitumumab safety profile will be addressed as well.
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Affiliation(s)
- Francesca Battaglin
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Alberto Puccini
- Medical Oncology Unit 1, IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Selma Ahcene Djaballah
- Medical Oncology Unit 1, Clinical and Experimental Oncology Department, Veneto Institute of Oncology IOV - IRCCS, Padua 35128, Italy
| | - Heinz-Josef Lenz
- Division of Medical Oncology, Norris Comprehensive Cancer Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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Peeters M, Price T, Boedigheimer M, Kim TW, Ruff P, Gibbs P, Thomas A, Demonty G, Hool K, Ang A. Evaluation of Emergent Mutations in Circulating Cell-Free DNA and Clinical Outcomes in Patients with Metastatic Colorectal Cancer Treated with Panitumumab in the ASPECCT Study. Clin Cancer Res 2018; 25:1216-1225. [PMID: 30487126 DOI: 10.1158/1078-0432.ccr-18-2072] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/10/2018] [Accepted: 11/19/2018] [Indexed: 11/16/2022]
Abstract
PURPOSE Mutations in EGFR pathway genes are poor prognostic indicators in patients with metastatic colorectal cancer. Plasma analysis of cell-free DNA is a minimally invasive and highly sensitive method to detect somatic mutations in tumors. EXPERIMENTAL DESIGN Plasma samples collected from panitumumab-treated patients in the ASPECCT study at baseline and safety follow-up (SFU) were analyzed by a next-generation sequencing-based approach for extended RAS mutant allele frequency as a continuous variable and their association with clinical outcomes and the mutational prevalence of 63 cancer-related genes. The correlation between patient outcome and baseline mutational status of EGFR pathway genes was also examined. RESULTS Overall, 261 patients in the panitumumab arm had evaluable plasma samples. Patients with a higher RAS mutant allele frequency at baseline had worse clinical outcomes than those with a lower frequency (P < 0.001, Cox PH model); however, RAS mutations did not necessarily preclude patients from deriving benefits. The objective response rate (complete or partial response) was 10.8% for patients with baseline RAS mutations and 21.7% for those with BRAF mutations. The 63-gene panel analysis revealed an increase in tumor mutational burden from baseline to SFU (P < 0.001, Wilcoxon signed rank test). Baseline mutations in EGFR pathway genes, when analyzed both categorically and continuously, were associated with shorter survival. CONCLUSIONS When mutations in EGFR pathway genes were analyzed continuously, higher mutant allele frequency correlated with poorer outcomes. However, extended RAS mutation, by itself, did not preclude clinical responses to panitumumab in a monotherapy setting.
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Affiliation(s)
| | - Timothy Price
- Antwerp University Hospital, Edegem, Belgium
- The Queen Elizabeth Hospital and University of Adelaide, Woodville, Australia
| | | | - Tae Won Kim
- Asan Medical Center, University of Ulsan, Seoul, South Korea
| | - Paul Ruff
- University of Witwatersrand MRC Common Epithelial Cancers Research Centre, Johannesburg, South Africa
| | | | - Anne Thomas
- University of Leicester, Leicester, United Kingdom
| | | | | | - Agnes Ang
- Amgen Inc., Thousand Oaks, California.
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