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Foffano L, Vida R, Piacentini A, Molteni E, Cucciniello L, Da Ros L, Buriolla S, Cereser L, Roncato R, Gerratana L, Puglisi F. Is ctDNA ready to outpace imaging in monitoring early and advanced breast cancer? Expert Rev Anticancer Ther 2024. [PMID: 38855809 DOI: 10.1080/14737140.2024.2362173] [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: 01/06/2024] [Accepted: 05/28/2024] [Indexed: 06/11/2024]
Abstract
INTRODUCTION circulating tumor DNA (ctDNA) and radiological imaging are increasingly recognized as crucial elements in breast cancer management. While radiology remains the cornerstone for screening and monitoring, ctDNA holds distinctive advantages in anticipating diagnosis, recurrence or progression, providing concurrent biological insights complementary to imaging results. AREAS COVERED this review delves into the current evidence on the synergistic relationship between ctDNA and imaging in breast cancer. It presents data on the clinical validity and utility of ctDNA in both early and advanced settings, providing insights into emerging liquid biopsy techniques like epigenetics and fragmentomics. Simultaneously, it explores the present and future landscape of imaging methodologies, particularly focusing on radiomics. EXPERT OPINION numerous are the current technical, strategic and economic challenges preventing the clinical integration of ctDNA analysis in the breast cancer monitoring. Understanding these complexities and devising targeted strategies is pivotal to effectively embedding this methodology into personalized patient care.
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Affiliation(s)
- Lorenzo Foffano
- Department of Medicine, University of Udine, Udine, Italy
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Riccardo Vida
- Department of Medicine, University of Udine, Udine, Italy
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | | | - Elisabetta Molteni
- Department of Medicine, University of Udine, Udine, Italy
- Weill Cornell Medicine, Department of Medicine, Division of Hematology-Oncology, New York, NY, USA
| | - Linda Cucciniello
- Department of Medicine, University of Udine, Udine, Italy
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Lucia Da Ros
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Silvia Buriolla
- Department of Oncology, Santa Maria della Misericordia University Hospital, Udine, Italy
| | - Lorenzo Cereser
- Department of Medicine, University of Udine, Udine, Italy
- Azienda Sanitaria-Universitaria Friuli Centrale (ASUFC), University Hospital S. Maria della Misericordia, Udine, Italy
| | | | - Lorenzo Gerratana
- Department of Medicine, University of Udine, Udine, Italy
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
| | - Fabio Puglisi
- Department of Medicine, University of Udine, Udine, Italy
- Department of Medical Oncology, CRO Aviano, National Cancer Institute, IRCCS, Aviano, Italy
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Chen J, Gale RP, Hu Y, Yan W, Wang T, Zhang W. Measurable residual disease (MRD)-testing in haematological and solid cancers. Leukemia 2024; 38:1202-1212. [PMID: 38637690 PMCID: PMC11147778 DOI: 10.1038/s41375-024-02252-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Affiliation(s)
- Junren Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China.
- Tianjin Institutes of Health Science, Tianjin, China.
| | - Robert Peter Gale
- Centre for Haematology, Department of Immunology and Inflammation, Imperial College of Science, Technology and Medicine, London, UK
| | - Yu Hu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Wen Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Tiantian Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
| | - Wei Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
- Tianjin Institutes of Health Science, Tianjin, China
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3
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Tan AC, Lai GGY, Saw SPL, Chua KLM, Takano A, Ong BH, Koh TPT, Jain A, Tan WL, Ng QS, Kanesvaran R, Rajasekaran T, Kalashnikova E, Renner D, Sudhaman S, Malhotra M, Sethi H, Liu MC, Aleshin A, Lim WT, Tan EH, Skanderup AJ, Ang MK, Tan DSW. Detection of circulating tumor DNA with ultradeep sequencing of plasma cell-free DNA for monitoring minimal residual disease and early detection of recurrence in early-stage lung cancer. Cancer 2024; 130:1758-1765. [PMID: 38422026 DOI: 10.1002/cncr.35263] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND In early-stage non-small cell lung cancer (NSCLC), recurrence is frequently observed. Circulating tumor DNA (ctDNA) has emerged as a noninvasive tool to risk stratify patients for recurrence after curative intent therapy. This study aimed to risk stratify patients with early-stage NSCLC via a personalized, tumor-informed multiplex polymerase chain reaction (mPCR) next-generation sequencing assay. METHODS This retrospective cohort study included patients with stage I-III NSCLC. Recruited patients received standard-of-care management (surgical resection with or without adjuvant chemotherapy, followed by surveillance). Whole-exome sequencing of NSCLC resected tissue and matched germline DNA was used to design patient-specific mPCR assays (Signatera, Natera, Inc) to track up to 16 single-nucleotide variants in plasma samples. RESULTS The overall cohort with analyzed plasma samples consisted of 57 patients. Stage distribution was 68% for stage I and 16% each for stages II and III. Presurgery (i.e., at baseline), ctDNA was detected in 15 of 57 patients (26%). ctDNA detection presurgery was significantly associated with shorter recurrence-free survival (RFS; hazard ratio [HR], 3.54; 95% confidence interval [CI], 1.00-12.62; p = .009). In the postsurgery setting, ctDNA was detected in seven patients, of whom 100% experienced radiological recurrence. ctDNA positivity preceded radiological findings by a median lead time of 2.8 months (range, 0-12.9 months). Longitudinally, ctDNA detection at any time point was associated with shorter RFS (HR, 16.1; 95% CI, 1.63-158.9; p < .0001). CONCLUSIONS ctDNA detection before surgical resection was strongly associated with a high risk of relapse in early-stage NSCLC in a large unique Asian cohort. Prospective studies are needed to assess the clinical utility of ctDNA status in this setting.
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MESH Headings
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/blood
- Lung Neoplasms/pathology
- Male
- Circulating Tumor DNA/blood
- Circulating Tumor DNA/genetics
- Female
- Middle Aged
- Aged
- Retrospective Studies
- Neoplasm Recurrence, Local/genetics
- Neoplasm Recurrence, Local/diagnosis
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/blood
- Carcinoma, Non-Small-Cell Lung/pathology
- High-Throughput Nucleotide Sequencing/methods
- Neoplasm, Residual/genetics
- Neoplasm, Residual/diagnosis
- Neoplasm Staging
- Early Detection of Cancer/methods
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/blood
- Adult
- Aged, 80 and over
- Multiplex Polymerase Chain Reaction/methods
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Affiliation(s)
- Aaron C Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Gillianne G Y Lai
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Stephanie P L Saw
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Kevin L M Chua
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Angela Takano
- Division of Pathology, Singapore General Hospital, Singapore, Singapore
| | - Boon-Hean Ong
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
- Department of Cardiothoracic Surgery, National Heart Centre Singapore, Singapore, Singapore
| | - Tina P T Koh
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Amit Jain
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Wan Ling Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Quan Sing Ng
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Ravindran Kanesvaran
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Tanujaa Rajasekaran
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | | | | | | | | | | | | | | | - Wan-Teck Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
- Institute of Molecular and Cell Biology, Singapore, Singapore
| | - Eng-Huat Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | | | - Mei-Kim Ang
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
| | - Daniel S W Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, National University of Singapore, Singapore, Singapore
- Genome Institute of Singapore, Singapore, Singapore
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Muttiah B, Ng SL, Lokanathan Y, Ng MH, Law JX. Extracellular Vesicles in Breast Cancer: From Intercellular Communication to Therapeutic Opportunities. Pharmaceutics 2024; 16:654. [PMID: 38794316 PMCID: PMC11125876 DOI: 10.3390/pharmaceutics16050654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Breast cancer, a multifaceted and heterogeneous disease, poses significant challenges in terms of understanding its intricate resistance mechanisms and devising effective therapeutic strategies. This review provides a comprehensive overview of the intricate landscape of extracellular vesicles (EVs) in the context of breast cancer, highlighting their diverse subtypes, biogenesis, and roles in intercellular communication within the tumour microenvironment (TME). The discussion spans various aspects, from EVs and stromal cells in breast cancer to their influence on angiogenesis, immune response, and chemoresistance. The impact of EV production in different culture systems, including two dimensional (2D), three dimensional (3D), and organoid models, is explored. Furthermore, this review delves into the therapeutic potential of EVs in breast cancer, presenting emerging strategies such as engineered EVs for gene delivery, nanoplatforms for targeted chemotherapy, and disrupting tumour derived EVs as a treatment approach. Understanding these complex interactions of EV within the breast cancer milieu is crucial for identifying resistance mechanisms and developing new therapeutic targets.
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Affiliation(s)
- Barathan Muttiah
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (M.H.N.)
| | - Sook Luan Ng
- Department of Craniofacial Diagnostics and Biosciences, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia;
| | - Yogeswaran Lokanathan
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (M.H.N.)
| | - Min Hwei Ng
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (M.H.N.)
| | - Jia Xian Law
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (Y.L.); (M.H.N.)
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Flory A, Wilson-Robles H. Noninvasive Blood-Based Cancer Detection in Veterinary Medicine. Vet Clin North Am Small Anim Pract 2024; 54:541-558. [PMID: 38195361 DOI: 10.1016/j.cvsm.2023.12.008] [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] [Indexed: 01/11/2024]
Abstract
The past decade has seen incredible advances in blood-based cancer detection in people and in dogs - yet this represents only a glimpse of the benefits these tests can provide to patients. The clinical uses of this technology range from screening asymptomatic individuals for early detection to use as an aid in diagnosis when cancer is suspected, to cancer monitoring both during and after treatment. This article summarizes the benefits of early cancer detection and examines use cases and methods of blood-based cancer detection in dogs, including quantitative, qualitative, and alternative approaches.
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Affiliation(s)
- Andi Flory
- PetDx, 9310 Athena Circle, Suite 230, La Jolla, CA 92037, USA.
| | - Heather Wilson-Robles
- Volition Veterinary Diagnostics Development, LLC 1489 West Warm Springs Road Suite 110, Henderson, NV 89014, USA; Ethos Discovery, 10435 Sorrento Valley Road, San Diego, CA 92121, USA; The Oncology Service, United Veterinary Health, 6651 Backlick Road, Springfield, VA 22150, USA
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Nesic M, Rasmussen MH, Henriksen TV, Demuth C, Frydendahl A, Nordentoft I, Dyrskjøt L, Andersen CL. Beyond basics: Key mutation selection features for successful tumor-informed ctDNA detection. Int J Cancer 2024. [PMID: 38623608 DOI: 10.1002/ijc.34964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/26/2024] [Accepted: 03/28/2024] [Indexed: 04/17/2024]
Abstract
Tumor-informed mutation-based approaches are frequently used for detection of circulating tumor DNA (ctDNA). Not all mutations make equally effective ctDNA markers. The objective was to explore if prioritizing mutations using mutational features-such as cancer cell fraction (CCF), multiplicity, and error rate-would improve the success rate of tumor-informed ctDNA analysis. Additionally, we aimed to develop a practical and easily implementable analysis pipeline for identifying and prioritizing candidate mutations from whole-exome sequencing (WES) data. We analyzed WES and ctDNA data from three tumor-informed ctDNA studies, one on bladder cancer (Cohort A) and two on colorectal cancer (Cohorts I and N). The studies included 390 patients. For each patient, a unique set of mutations (median mutations/patient: 6, interquartile 13, range: 1-46, total n = 4023) were used as markers of ctDNA. The tool PureCN was used to assess the CCF and multiplicity of each mutation. High-CCF mutations were detected more frequently than low-CCF mutations (Cohort A: odds ratio [OR] 20.6, 95% confidence interval [CI] 5.72-173, p = 1.73e-12; Cohort I: OR 2.24, 95% CI 1.44-3.52, p = 1.66e-04; and Cohort N: OR 1.78, 95% CI 1.14-2.79, p = 7.86e-03). The detection-likelihood was additionally improved by selecting mutations with multiplicity of two or above (Cohort A: OR 1.55, 95% CI 1. 14-2.11, p = 3.85e-03; Cohort I: OR 1.78, 95% CI 1.23-2.56, p = 1.34e-03; and Cohort N: OR 1.94, 95% CI 1.63-2.31, p = 2.83e-14). Furthermore, selecting the mutations for which the ctDNA detection method had the lowest error rates, additionally improved the detection-likelihood, particularly evident when plasma cell-free DNA tumor fractions were below 0.1% (p = 2.1e-07). Selecting mutational markers with high CCF, high multiplicity, and low error rate significantly improve ctDNA detection likelihood. We provide free access to the analysis pipeline enabling others to perform qualified prioritization of mutations for tumor-informed ctDNA analysis.
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Affiliation(s)
- Marijana Nesic
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Mads H Rasmussen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Tenna V Henriksen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Christina Demuth
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Amanda Frydendahl
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Iver Nordentoft
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lars Dyrskjøt
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Claus L Andersen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
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Arredondo J, Almeida A, Castañón C, Sánchez C, Villafañe A, Tejedor P, Simó V, Baixauli J, Rodríguez J, Pastor C. The ELECLA trial: A multicentre randomised control trial on outcomes of neoadjuvant treatment on locally advanced colon cancer. Colorectal Dis 2024; 26:745-753. [PMID: 38362850 DOI: 10.1111/codi.16908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Colon cancer (CC) is a public health concern with increasing incidence in younger populations. Treatment for locally advanced CC (LACC) involves oncological surgery and adjuvant chemotherapy (AC) to reduce recurrence and improve overall survival (OS). Neoadjuvant chemotherapy (NAC) is a novel approach for the treatment of LACC, and research is underway to explore its potential benefit in terms of survival. This trial will assess the efficacy of NAC in LACC. METHODS This is a multicentre randomised, parallel-group, open label controlled clinical trial. Participants will be selected based on homogenous inclusion criteria and randomly assigned to two treatment groups: NAC, surgery, and AC or surgery followed by AC. The primary aim of this study is to evaluate the 2-year progression-free survival (PFS), with secondary outcomes including 5-year PFS, 2- and 5-year OS, toxicity, radiological and pathological response, morbidity, and mortality. DISCUSSION The results of this study will determine whether NAC induces a clinical and histological tumour response in patients with CCLA and if this treatment sequence improves survival without increasing morbidity and mortality. REGISTRATION NUMBER NCT04188158.
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Affiliation(s)
- Jorge Arredondo
- Department of General Surgery, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
- Institute of Health Research of Navarra (IdisNA), Pamplona, Spain
| | - Ana Almeida
- Department of General Surgery, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
| | - Carmen Castañón
- Department of Oncology, University Hospital of León, Leon, Spain
| | - Carlos Sánchez
- Department of General Surgery, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
- Institute of Health Research of Navarra (IdisNA), Pamplona, Spain
| | - Amaya Villafañe
- Department of General Surgery, University Hospital of León, Leon, Spain
| | - Patricia Tejedor
- Department of General Surgery, University Hospital Gregorio Marañón, Madrid, Spain
| | - Vicente Simó
- Department of General Surgery, University Hospital Río Hortega, Valladolid, Spain
| | - Jorge Baixauli
- Department of General Surgery, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
- Institute of Health Research of Navarra (IdisNA), Pamplona, Spain
| | - Javier Rodríguez
- Institute of Health Research of Navarra (IdisNA), Pamplona, Spain
- Department of Oncology, Clínica Universidad de Navarra, University of Navarra, Pamplona, Spain
| | - Carlos Pastor
- Department of General Surgery, Clínica Universidad de Navarra, University of Navarra, Madrid, Spain
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8
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Northcott J, Bartha G, Harris J, Li C, Navarro FC, Pyke RM, Hong M, Zhang Q, Ma S, Chen TX, Lai J, Udar N, Saldivar JS, Ayash E, Anderson J, Li J, Cui T, Le T, Chow R, Velasco RJ, Mallo C, Santiago R, Bruce RC, Goodman LJ, Chen Y, Norton D, Chen RO, Lyle JM. Analytical validation of NeXT Personal®, an ultra-sensitive personalized circulating tumor DNA assay. Oncotarget 2024; 15:200-218. [PMID: 38484152 PMCID: PMC10939476 DOI: 10.18632/oncotarget.28565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 02/12/2024] [Indexed: 03/17/2024] Open
Abstract
We describe the analytical validation of NeXT Personal®, an ultra-sensitive, tumor-informed circulating tumor DNA (ctDNA) assay for detecting residual disease, monitoring therapy response, and detecting recurrence in patients diagnosed with solid tumor cancers. NeXT Personal uses whole genome sequencing of tumor and matched normal samples combined with advanced analytics to accurately identify up to ~1,800 somatic variants specific to the patient's tumor. A personalized panel is created, targeting these variants and then used to sequence cell-free DNA extracted from patient plasma samples for ultra-sensitive detection of ctDNA. The NeXT Personal analytical validation is based on panels designed from tumor and matched normal samples from two cell lines, and from 123 patients across nine cancer types. Analytical measurements demonstrated a detection threshold of 1.67 parts per million (PPM) with a limit of detection at 95% (LOD95) of 3.45 PPM. NeXT Personal showed linearity over a range of 0.8 to 300,000 PPM (Pearson correlation coefficient = 0.9998). Precision varied from a coefficient of variation of 12.8% to 3.6% over a range of 25 to 25,000 PPM. The assay targets 99.9% specificity, with this validation study measuring 100% specificity and in silico methods giving us a confidence interval of 99.92 to 100%. In summary, this study demonstrates NeXT Personal as an ultra-sensitive, highly quantitative and robust ctDNA assay that can be used to detect residual disease, monitor treatment response, and detect recurrence in patients.
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Affiliation(s)
| | | | | | - Conan Li
- Personalis, Inc., Fremont, CA 94555, USA
| | | | | | | | - Qi Zhang
- Personalis, Inc., Fremont, CA 94555, USA
| | - Shuyuan Ma
- Personalis, Inc., Fremont, CA 94555, USA
| | | | - Janet Lai
- Personalis, Inc., Fremont, CA 94555, USA
| | - Nitin Udar
- Personalis, Inc., Fremont, CA 94555, USA
| | | | - Erin Ayash
- Personalis, Inc., Fremont, CA 94555, USA
| | | | - Jiang Li
- Personalis, Inc., Fremont, CA 94555, USA
| | - Tiange Cui
- Personalis, Inc., Fremont, CA 94555, USA
| | - Tu Le
- Personalis, Inc., Fremont, CA 94555, USA
| | | | | | | | | | | | | | - Yi Chen
- Personalis, Inc., Fremont, CA 94555, USA
| | - Dan Norton
- Personalis, Inc., Fremont, CA 94555, USA
| | | | - John M. Lyle
- Personalis, Inc., Fremont, CA 94555, USA
- Co-last authors
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9
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Kalashnikova E, Aushev VN, Malashevich AK, Tin A, Krinshpun S, Salari R, Scalise CB, Ram R, Malhotra M, Ravi H, Sethi H, Sanchez S, Hagelstrom RT, Brevnov M, Rabinowitz M, Moshkevich S, Zimmermann BG, Liu MC, Aleshin A. Correlation between variant allele frequency and mean tumor molecules with tumor burden in patients with solid tumors. Mol Oncol 2023. [PMID: 38037739 DOI: 10.1002/1878-0261.13557] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 10/03/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023] Open
Abstract
Several studies have demonstrated the prognostic value of circulating tumor DNA (ctDNA); however, the correlation of mean tumor molecules (MTM)/ml of plasma and mean variant allele frequency (mVAF; %) with clinical parameters is yet to be understood. In this study, we analyzed ctDNA data in a pan-cancer cohort of 23 543 patients who had ctDNA testing performed using a personalized, tumor-informed assay (Signatera™, mPCR-NGS assay). For ctDNA-positive patients, the correlation between MTM/ml and mVAF was examined. Two subanalyses were performed: (a) to establish the association of ctDNA with tumor volume and (b) to assess the correlation between ctDNA dynamics and patient outcomes. On a global cohort, a positive correlation between MTM/ml and mVAF was observed. Among 18 426 patients with longitudinal ctDNA measurements, 13.3% had discordant trajectories between MTM/ml and mVAF at subsequent time points. In metastatic patients receiving immunotherapy (N = 51), changes in ctDNA levels expressed both in MTM/ml and mVAF showed a statistically significant association with progression-free survival; however, the correlation with MTM/ml was numerically stronger.
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10
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Honoré N, van Marcke C, Galot R, Helaers R, Ambroise J, van Maanen A, Mendola A, Dahou H, Marbaix E, Van Eeckhout P, Longton E, Magremanne M, Schmitz S, Limaye N, Machiels JP. Tumor-agnostic plasma assay for circulating tumor DNA detects minimal residual disease and predicts outcome in locally advanced squamous cell carcinoma of the head and neck. Ann Oncol 2023; 34:1175-1186. [PMID: 37879442 DOI: 10.1016/j.annonc.2023.09.3102] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Forty to fifty percent of patients with locally advanced squamous cell carcinoma of the head and neck (LA SCCHN) relapse despite multimodal treatment. Circulating tumor DNA (ctDNA) has the potential to detect minimal residual disease (MRD) after curative-intent therapy and to identify earlier which patients will progress. We developed a tumor-agnostic plasma ctDNA assay to detect MRD in unselected LA SCCHN with the aim of predicting progression-free survival (PFS) and overall survival without the need for tumor sequencing. PATIENTS AND METHODS A 26-gene next-generation sequencing panel was constructed that included the most frequently mutated genes in SCCHN and two HPV-16 genes. MRD was assessed in each patient through an in-house informatic workflow informed by somatic mutations identified in the corresponding pre-treatment plasma sample. The presence of MRD was defined as the detection of ctDNA in one plasma sample collected within 1-12 weeks of the end of curative treatment. The primary endpoint was the PFS rate at 2 years. At least 32 patients were planned for inclusion with the hypothesis that PFS at 2 years was >80% in MRD-negative patients and <30% in MRD-positive patients (α = 0.05, β = 0.9). RESULTS We sequenced DNA from 116 plasma samples derived from 53 LA SCCHN patients who underwent curative-intent treatment. ctDNA was detected in 41/53 (77%) patients in the pre-treatment samples. Out of these 41 patients, 17 (41%) were MRD positive after treatment. The 2-year PFS rate was 23.53% (9.9% to 55.4%) and 86.6% (73.4% to 100%) in MRD-positive and MRD-negative patients, respectively (P < 0.05). Median survival was 28.37 months (14.30 months-not estimable) for MRD-positive patients and was not reached for the MRD-negative cohort (P = 0.011). CONCLUSIONS Our ctDNA assay detects MRD in LA SCCHN and predicts disease progression and survival without the need for tumor sequencing, making this approach easily applicable in daily practice.
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Affiliation(s)
- N Honoré
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of Medical Oncology, Institut Roi Albert II, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - C van Marcke
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of Medical Oncology, Institut Roi Albert II, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - R Galot
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of Medical Oncology, Institut Roi Albert II, Cliniques universitaires Saint-Luc, Brussels, Belgium
| | - R Helaers
- Human Molecular Genetics, de Duve Institute, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - J Ambroise
- Center for Applied Molecular Technologies, Institute of Clinical and Experimental Research, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - A van Maanen
- Statistical Support Unit, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - A Mendola
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - H Dahou
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - E Marbaix
- Department of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - P Van Eeckhout
- Department of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - E Longton
- Department of Radiotherapy, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - M Magremanne
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of Maxillo-facial Surgery, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - S Schmitz
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of ENT and Head and Neck Surgery, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - N Limaye
- Department of Genetics of Autoimmune Diseases and Cancer, de Duve Institute, Université Catholique de Louvain, Brussels, Belgium
| | - J-P Machiels
- Pôle oncologie, Institut de Recherche Clinique et Expérimentale, Université catholique de Louvain (UCLouvain), Brussels, Belgium; Department of Medical Oncology, Institut Roi Albert II, Cliniques universitaires Saint-Luc, Brussels, Belgium.
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11
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Yao S, Han Y, Yang M, Jin K, Lan H. Integration of liquid biopsy and immunotherapy: opening a new era in colorectal cancer treatment. Front Immunol 2023; 14:1292861. [PMID: 38077354 PMCID: PMC10702507 DOI: 10.3389/fimmu.2023.1292861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/03/2023] [Indexed: 12/18/2023] Open
Abstract
Immunotherapy has revolutionized the conventional treatment approaches for colorectal cancer (CRC), offering new therapeutic prospects for patients. Liquid biopsy has shown significant potential in early screening, diagnosis, and postoperative monitoring by analyzing circulating tumor cells (CTC) and circulating tumor DNA (ctDNA). In the era of immunotherapy, liquid biopsy provides additional possibilities for guiding immune-based treatments. Emerging technologies such as mass spectrometry-based detection of neoantigens and flow cytometry-based T cell sorting offer new tools for liquid biopsy, aiming to optimize immune therapy strategies. The integration of liquid biopsy with immunotherapy holds promise for improving treatment outcomes in colorectal cancer patients, enabling breakthroughs in early diagnosis and treatment, and providing patients with more personalized, precise, and effective treatment strategies.
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Affiliation(s)
- Shiya Yao
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Yuejun Han
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Mengxiang Yang
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Ketao Jin
- Department of Colorectal Surgery, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, Jinhua, Zhejiang, China
| | - Huanrong Lan
- Department of Surgical Oncology, Hangzhou Cancer Hospital, Hangzhou, Zhejiang, China
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12
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Thangarajah F, Busshoff J, Salamon J, Pruss MS, Lenz C, Morgenstern B, Hellmich M, Schlößer HA, Lenz M, Domröse C, Mallmann MR, Mallmann P, Weiß J, Franzen F, Merkelbach-Bruse S, Binot E, Eich ML, Büttner R, Schultheis AM, Alidousty C. Digital droplet PCR-based quantification of ccfHPV-DNA as liquid biopsy in HPV-driven cervical and vulvar cancer. J Cancer Res Clin Oncol 2023; 149:12597-12604. [PMID: 37452202 PMCID: PMC10587338 DOI: 10.1007/s00432-023-05077-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE More than 99% of cervical cancers and up to 40% of vulvar cancers are human papillomavirus (HPV) related. HPV 16 and 18 are the most relevant subtypes. Novel technologies allow the detection of minimal amounts of circulating cell-free HPV DNA (ccfHPV-DNA). The aim of this study was to evaluate ccfHPV-DNA assessed by droplet digital PCR (ddPCR) as a biomarker for molecular therapy monitoring in early, advanced, relapsed and metastatic HPV-driven cervical and vulvar cancer. METHODS Inclusion criteria of the study were histologically proven HPV 16/18-driven cervical and vulvar cancer with first diagnosed disease, newly diagnosed recurrence, or progression of disease. Blood samples were taken pre- and post-therapeutically. Circulating cell-free HPV DNA was quantified using ddPCR and the results were correlated with clinical data. RESULTS The mean copy number of ccfHPV-DNA was 838.6 (± 3089.1) in pretreatment and 2.3 (± 6.4) in post-treatment samples (p < 0.05). The copy number of ccfHPV-DNA increased with higher FIGO stages (p < 0.05), which are commonly used for clinical staging/assessment. Furthermore, we compared the distribution of copy numbers between T-stage 1 versus T-stage 2/3. We could show higher copy number level of ccfHPV-DNA in T-stage 2/3 (p < 0.05). CONCLUSIONS Therapy monitoring with determination of ccfHPV-DNA by ddPCR with a small amount of plasma reflects response to therapy and appears feasible for patients in advanced cancer stages of cervical and vulvar cancer. This promising tool should be examined as marker of therapy monitoring in particular in novel HPV-directed therapies.
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Affiliation(s)
- Fabinshy Thangarajah
- Department of Gynecology and Obstetrics, University Hospital of Essen, University of Duisburg Essen, Faculty of Medicine, Essen, Germany.
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany.
| | - Jana Busshoff
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Janina Salamon
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Marie-Sandrine Pruss
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Caroline Lenz
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Bernd Morgenstern
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Martin Hellmich
- Institute of Medical Statistics, Informatics and Epidemiology, University of Cologne, Cologne, Germany
| | - Hans Anton Schlößer
- Center for Molecular Medicine Cologne and Department of General, Visceral and Cancer Surgery, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Maximilian Lenz
- Department for Orthopaedic and Trauma Surgery, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Christian Domröse
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Michael R Mallmann
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Peter Mallmann
- Department of Obstetrics and Gynecology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Jonathan Weiß
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Fabian Franzen
- Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Duesseldorf, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | | | - Elke Binot
- Institute of Pathology, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Marie-Lisa Eich
- Institute of Pathology, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Reinhardt Büttner
- Institute of Pathology, University Hospital of Cologne, Medical Faculty, Cologne, Germany
| | - Anne Maria Schultheis
- Institute of Pathology, University Hospital of Cologne, Medical Faculty, Cologne, Germany.
| | - Christina Alidousty
- Institute of Pathology, University Hospital of Cologne, Medical Faculty, Cologne, Germany
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13
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Zhao J, Reuther J, Scozzaro K, Hawley M, Metzger E, Emery M, Chen I, Barbosa M, Johnson L, O'Connor A, Washburn M, Hartje L, Reckase E, Johnson V, Zhang Y, Westheimer E, O'Callaghan W, Malani N, Chesh A, Moreau M, Daber R. Personalized Cancer Monitoring Assay for the Detection of ctDNA in Patients with Solid Tumors. Mol Diagn Ther 2023; 27:753-768. [PMID: 37632661 PMCID: PMC10590345 DOI: 10.1007/s40291-023-00670-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND Highly sensitive molecular assays have been developed to detect plasma-based circulating tumor DNA (ctDNA), and emerging evidence suggests their clinical utility for monitoring minimal residual disease and recurrent disease, providing prognostic information, and monitoring therapy responses in patients with solid tumors. The Invitae Personalized Cancer Monitoring™ assay uses a patient-specific, tumor-informed variant signature identified through whole exome sequencing to detect ctDNA in peripheral blood of patients with solid tumors. METHODS The assay's tumor whole exome sequencing and ctDNA detection components were analytically validated using 250 unique human specimens and nine commercial reference samples that generated 1349 whole exome sequencing and cell-free DNA (cfDNA)-derived libraries. A comparison of tumor and germline whole exome sequencing was used to identify patient-specific tumor variant signatures and generate patient-specific panels, followed by targeted next-generation sequencing of plasma-derived cfDNA using the patient-specific panels with anchored multiplex polymerase chain reaction chemistry leveraging unique molecular identifiers. RESULTS Whole exome sequencing resulted in overall sensitivity of 99.8% and specificity of > 99.9%. Patient-specific panels were successfully designed for all 63 samples (100%) with ≥ 20% tumor content and 24 (80%) of 30 samples with ≥ 10% tumor content. Limit of blank studies using 30 histologically normal, formalin-fixed paraffin-embedded specimens resulted in 100% expected panel design failure. The ctDNA detection component demonstrated specificity of > 99.9% and sensitivity of 96.3% for a combination of 10 ng of cfDNA input, 0.008% allele frequency, 50 variants on the patient-specific panels, and a baseline threshold. Limit of detection ranged from 0.008% allele frequency when utilizing 60 ng of cfDNA input with 18-50 variants in the patient-specific panels (> 99.9% sensitivity) with a baseline threshold, to 0.05% allele frequency when using 10 ng of cfDNA input with an 18-variant panel with a monitoring threshold (> 99.9% sensitivity). CONCLUSIONS The Invitae Personalized Cancer Monitoring assay, featuring a flexible patient-specific panel design with 18-50 variants, demonstrated high sensitivity and specificity for detecting ctDNA at variant allele frequencies as low as 0.008%. This assay may support patient prognostic stratification, provide real-time data on therapy responses, and enable early detection of residual/recurrent disease.
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Affiliation(s)
- Jianhua Zhao
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA.
| | | | - Kaylee Scozzaro
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Megan Hawley
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Emily Metzger
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Matthew Emery
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Ingrid Chen
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | | | - Laura Johnson
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
- Affiliated with Invitae Corp. at the time of the study, currently employees at Integrated DNA Technologies, 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Alijah O'Connor
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Mike Washburn
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
- Affiliated with Invitae Corp. at the time of the study, currently employees at Integrated DNA Technologies, 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Luke Hartje
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
- Affiliated with Invitae Corp. at the time of the study, currently employees at Integrated DNA Technologies, 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Erik Reckase
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
- Affiliated with Invitae Corp. at the time of the study, currently employees at Integrated DNA Technologies, 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Verity Johnson
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
- Affiliated with Invitae Corp. at the time of the study, currently employees at Integrated DNA Technologies, 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Yuhua Zhang
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | | | | | - Nirav Malani
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Adrian Chesh
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Michael Moreau
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
| | - Robert Daber
- Invitae Corp., 1400 16th Street, San Francisco, CA, 94103, USA
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Tamai K, Hirose H, Okamura S, Akazawa Y, Koh M, Hayashi K, Katsura Y, Tanaka N, Ebisui C, Yano M. Prognostic Value of C-reactive Protein-to-albumin Ratio after Curative Resection in Patients with Colorectal Cancer. J Anus Rectum Colon 2023; 7:273-283. [PMID: 37900690 PMCID: PMC10600269 DOI: 10.23922/jarc.2023-016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/26/2023] [Indexed: 10/31/2023] Open
Abstract
Objectives The current retrospective study aimed to evaluate the association between combined preoperative and postoperative C-reactive protein-to-albumin ratio, which is correlated with prognosis in different types of malignancies, and prognosis after curative resection in patients with colorectal cancer. Methods This study enrolled 263 patients who underwent curative resection for stage II/III colorectal cancer. C-reactive protein-to-albumin ratio was calculated within 30 days before and 7 days after surgery. Receiver operating characteristic curve analyses were performed to determine the optimal cutoff values of preoperative and postoperative C-reactive protein-to-albumin ratio. The correlations between combined preoperative and postoperative C-reactive protein-to-albumin ratio and prognosis were analyzed. Results The cutoff values of preoperative and postoperative C-reactive protein-to-albumin ratio were 0.223 and 0.813, respectively; higher ratios were significantly associated with poor overall survival, based on the Kaplan-Meier curves (p < 0.001, p = 0.003, respectively). Further, preoperative and postoperative C-reactive protein-to-albumin ratios were correlated with poor progression-free survival (p < 0.001, p = 0.064, respectively). In the multivariate analysis, combined preoperative and postoperative C-reactive protein-to-albumin ratio was an independent predictor of overall survival and progression-free survival (p = 0.012, p = 0.044, respectively). Compared with low preoperative and postoperative C-reactive protein-to-albumin ratio, high ratios of that were significantly associated with poor overall survival (hazard ratio = 3.897, p = 0.006) and progression-free survival (hazard ratio = 2.130, p = 0.029). Conclusions Combined preoperative and postoperative C-reactive protein-to-albumin ratio, useful for prognostic prediction, can be a promising prognostic marker after curative resection in patients with colorectal cancer.
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Affiliation(s)
- Koki Tamai
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Hajime Hirose
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Shu Okamura
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Yo Akazawa
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Masahiro Koh
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Koji Hayashi
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | | | - Natsumi Tanaka
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Chikara Ebisui
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
| | - Masahiko Yano
- Department of Surgery, Suita Municipal Hospital, Suita, Japan
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15
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Lebow ES, Shaverdian N, Eichholz JE, Kratochvil LB, McCune M, Murciano-Goroff YR, Jee J, Eng J, Chaft JE, Kris MG, Kalashnikova E, Feeney J, Scalise CB, Sudhaman S, Palsuledesai CC, Malhotra M, Krainock M, Sethi H, Aleshin A, Liu MC, Shepherd AF, Wu AJ, Simone CB, Gelblum DY, Johnson KA, Rudin CM, Gomez DR, Razavi P, Reis-Filho JS, Isbell JM, Li BT, Rimner A. ctDNA-based detection of molecular residual disease in stage I-III non-small cell lung cancer patients treated with definitive radiotherapy. Front Oncol 2023; 13:1253629. [PMID: 37795442 PMCID: PMC10546425 DOI: 10.3389/fonc.2023.1253629] [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: 07/05/2023] [Accepted: 08/24/2023] [Indexed: 10/06/2023] Open
Abstract
Background Sensitive and reliable biomarkers for early detection of recurrence are needed to improve post-definitive radiation risk stratification, disease management, and outcomes for patients with unresectable early-stage or locally advanced non-small cell lung cancer (NSCLC) who are treated with definitive radiation therapy (RT). This prospective, multistate single-center, cohort study investigated the association of circulating tumor DNA (ctDNA) status with recurrence in patients with unresectable stage I-III NSCLC who underwent definitive RT. Methods A total of 70 serial plasma samples from 17 NSCLC patients were collected before, during, and after treatment. A personalized, tumor-informed ctDNA assay was used to track a set of up to 16 somatic, single nucleotide variants in the associated patient's plasma samples. Results Pre-treatment ctDNA detection rate was 82% (14/17) and varied based on histology and stage. ctDNA was detected in 35% (6/17) of patients at the first post-RT timepoint (median of 1.66 months following the completion of RT), all of whom subsequently developed clinical progression. At this first post-RT time point, patients with ctDNA-positivity had significantly worse progression-free survival (PFS) [hazard ratio (HR): 24.2, p=0.004], and ctDNA-positivity was the only significant prognostic factor associated with PFS (HR: 13.4, p=0.02) in a multivariate analysis. All patients who developed clinical recurrence had detectable ctDNA with an average lead time over radiographic progression of 5.4 months, and post-RT ctDNA positivity was significantly associated with poor PFS (p<0.0001). Conclusion Personalized, longitudinal ctDNA monitoring can detect recurrence early in patients with unresectable NSCLC patients undergoing curative radiation and potentially risk-stratify patients who might benefit most from treatment intensification.
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Affiliation(s)
- Emily S. Lebow
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- The University of Pennsylvania, Philadelphia, Pennsylvania
| | - Narek Shaverdian
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | | | | | - Megan McCune
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Yonina R. Murciano-Goroff
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Justin Jee
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Juliana Eng
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Jamie E. Chaft
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Mark G. Kris
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | | | | | | | | | | | | | | | | | | | | | | | - Abraham J. Wu
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | | | | | | | - Charles M. Rudin
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Daniel R. Gomez
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Pedram Razavi
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | | | - James M. Isbell
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Bob T. Li
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Weill Cornell Medicine, Cornell University, New York, NY, United States
| | - Andreas Rimner
- Memorial Sloan Kettering Cancer Center, New York, NY, United States
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Tébar-Martínez R, Martín-Arana J, Gimeno-Valiente F, Tarazona N, Rentero-Garrido P, Cervantes A. Strategies for improving detection of circulating tumor DNA using next generation sequencing. Cancer Treat Rev 2023; 119:102595. [PMID: 37390697 DOI: 10.1016/j.ctrv.2023.102595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Cancer has become a global health issue and liquid biopsy has emerged as a non-invasive tool for various applications. In cancer, circulating tumor DNA (ctDNA) can be detected from cell-free DNA (cfDNA) obtained from plasma and has potential for early diagnosis, treatment, resistance, minimal residual disease detection, and tumoral heterogeneity identification. However, the low frequency of ctDNA requires techniques for accurate analysis. Multitarget assay such as Next Generation Sequencing (NGS) need improvement to achieve limits of detection that can identify the low frequency variants present in the cfDNA. In this review, we provide a general overview of the use of cfDNA and ctDNA in cancer, and discuss techniques developed to optimize NGS as a tool for ctDNA detection. We also summarize the results obtained using NGS strategies in both investigational and clinical contexts.
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Affiliation(s)
- Roberto Tébar-Martínez
- Department of Medical Oncology, INCLIVA Health Research Institute, University of Valencia, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain; Precision Medicine Unit, INCLIVA Health Research Institute, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain.
| | - Jorge Martín-Arana
- Department of Medical Oncology, INCLIVA Health Research Institute, University of Valencia, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain; Bioinformatics Unit, INCLIVA Health Research Institute, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain.
| | - Francisco Gimeno-Valiente
- Cancer Evolution and Genome Instability Laboratory, University College of London Cancer Institute, 72 Huntley St, WC1E 6DD London, United Kingdom.
| | - Noelia Tarazona
- Department of Medical Oncology, INCLIVA Health Research Institute, University of Valencia, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain; Health Institute Carlos III, CIBERONC, C/ Sinesio Delgado, 4, 28029 Madrid, Spain.
| | - Pilar Rentero-Garrido
- Precision Medicine Unit, INCLIVA Health Research Institute, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain.
| | - Andrés Cervantes
- Department of Medical Oncology, INCLIVA Health Research Institute, University of Valencia, C. de Menéndez y Pelayo, 4, 46010 Valencia, Spain; Health Institute Carlos III, CIBERONC, C/ Sinesio Delgado, 4, 28029 Madrid, Spain.
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17
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Jang A, Lanka SM, Jaeger EB, Lieberman A, Huang M, Sartor AO, Mendiratta P, Brown JR, Garcia JA, Farmer T, Sudhaman S, Mahmood T, Pajak N, Calhoun M, Dutta P, ElNaggar A, Liu MC, Barata PC. Longitudinal Monitoring of Circulating Tumor DNA to Assess the Efficacy of Immune Checkpoint Inhibitors in Patients With Advanced Genitourinary Malignancies. JCO Precis Oncol 2023; 7:e2300131. [PMID: 37467457 DOI: 10.1200/po.23.00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/22/2023] [Accepted: 06/12/2023] [Indexed: 07/21/2023] Open
Abstract
PURPOSE Circulating tumor DNA (ctDNA) detection in blood has emerged as a prognostic and predictive biomarker demonstrating improved assessment of treatment response in patients receiving immune checkpoint inhibitors (ICIs). Here, we performed a pilot study to support the role of ctDNA for longitudinal treatment response monitoring in patients with advanced genitourinary (GU) malignancies receiving ICIs. MATERIALS AND METHODS Patients with histologically confirmed advanced GU malignancies were prospectively enrolled. All eligible patients received ICI treatment for at least 12 weeks, followed by serial collection of blood samples every 6-8 weeks and conventional scans approximately every 12 weeks until disease progression. ctDNA analysis was performed using Signatera, a tumor-informed multiplex-polymerase chain reaction next-generation sequencing assay. Overall, the objective response rate (ORR) was reported and its association with ctDNA status was evaluated. Concordance rate between ctDNA dynamics and conventional imaging was also assessed. RESULTS ctDNA analysis was performed on 98 banked plasma samples from 20 patients (15 renal, four urothelial, and one prostate). The median follow-up from the time of initiation of ICI to progressive disease (PD) or data cutoff was 67.7 weeks (range, 19.6-169.6). The ORR was 70% (14/20). Eight patients ultimately developed PD. The overall concordance between ctDNA dynamics and radiographic response was observed in 83% (15/18) of patients. Among the three patients with discordant results, two developed CNS metastases and one progressed with extracranial systemic disease while ctDNA remained undetectable. CONCLUSION In this pilot study, longitudinal ctDNA analysis for monitoring response to ICI in patients with advanced GU tumors was feasible. Larger prospective studies are warranted to validate the utility of ctDNA as an ICI response monitoring tool in patients with advanced GU malignancies.
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Affiliation(s)
- Albert Jang
- Tulane University School of Medicine, New Orleans, LA
| | - Sree M Lanka
- Tulane University School of Medicine, New Orleans, LA
| | | | | | - Minqi Huang
- Tulane University School of Medicine, New Orleans, LA
| | | | | | - Jason R Brown
- University Hospitals Seidman Cancer Center, Cleveland, OH
| | - Jorge A Garcia
- University Hospitals Seidman Cancer Center, Cleveland, OH
| | | | | | | | | | | | | | | | | | - Pedro C Barata
- Tulane University School of Medicine, New Orleans, LA
- University Hospitals Seidman Cancer Center, Cleveland, OH
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18
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Cohen SA, Liu MC, Aleshin A. Practical recommendations for using ctDNA in clinical decision making. Nature 2023; 619:259-268. [PMID: 37438589 DOI: 10.1038/s41586-023-06225-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 05/16/2023] [Indexed: 07/14/2023]
Abstract
The continuous improvement in cancer care over the past decade has led to a gradual decrease in cancer-related deaths. This is largely attributed to improved treatment and disease management strategies. Early detection of recurrence using blood-based biomarkers such as circulating tumour DNA (ctDNA) is being increasingly used in clinical practice. Emerging real-world data shows the utility of ctDNA in detecting molecular residual disease and in treatment-response monitoring, helping clinicians to optimize treatment and surveillance strategies. Many studies have indicated ctDNA to be a sensitive and specific biomarker for recurrence. However, most of these studies are largely observational or anecdotal in nature, and peer-reviewed data regarding the use of ctDNA are mainly indication-specific. Here we provide general recommendations on the clinical utility of ctDNA and how to interpret ctDNA analysis in different treatment settings, especially in patients with solid tumours. Specifically, we provide an understanding around the implications, strengths and limitations of this novel biomarker and how to best apply the results in clinical practice.
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Affiliation(s)
- Stacey A Cohen
- Fred Hutchinson Cancer Center, Seattle, WA, USA.
- University of Washington, Seattle, WA, USA.
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19
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Matsuoka T, Yashiro M. Novel biomarkers for early detection of gastric cancer. World J Gastroenterol 2023; 29:2515-2533. [PMID: 37213407 PMCID: PMC10198055 DOI: 10.3748/wjg.v29.i17.2515] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/31/2023] [Accepted: 04/13/2023] [Indexed: 05/23/2023] Open
Abstract
Gastric cancer (GC) remains a leading cause of cancer-related death worldwide. Less than half of GC cases are diagnosed at an advanced stage due to its lack of early symptoms. GC is a heterogeneous disease associated with a number of genetic and somatic mutations. Early detection and effective monitoring of tumor progression are essential for reducing GC disease burden and mortality. The current widespread use of semi-invasive endoscopic methods and radiologic approaches has increased the number of treatable cancers: However, these approaches are invasive, costly, and time-consuming. Thus, novel molecular noninvasive tests that detect GC alterations seem to be more sensitive and specific compared to the current methods. Recent technological advances have enabled the detection of blood-based biomarkers that could be used as diagnostic indicators and for monitoring postsurgical minimal residual disease. These biomarkers include circulating DNA, RNA, extracellular vesicles, and proteins, and their clinical applications are currently being investigated. The identification of ideal diagnostic markers for GC that have high sensitivity and specificity would improve survival rates and contribute to the advancement of precision medicine. This review provides an overview of current topics regarding the novel, recently developed diagnostic markers for GC.
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Affiliation(s)
- Tasuku Matsuoka
- Molecular Oncology and Therapeutics, Osaka Metropolitan University Graduate School of Medicine, Osaka 5458585, Japan
| | - Masakazu Yashiro
- Molecular Oncology and Therapeutics, Osaka Metropolitan University Graduate School of Medicine, Osaka 5458585, Japan
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20
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Taieb J, Karoui M. FOxTROT: Are We Ready to Dance? J Clin Oncol 2023; 41:1514-1517. [PMID: 36657090 DOI: 10.1200/jco.22.02108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Affiliation(s)
- Julien Taieb
- Department of Hepato-Gastroenterology and GI Oncology, Georges Pompidou European Hospital, Université Paris Cité, SIRIC CARPEM, Paris, France
| | - Mehdi Karoui
- Department of GI and Oncologic Surgery, Georges Pompidou European Hospital, Université Paris Cité, SIRIC CARPEM, Paris, France
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21
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Goldring G, Trotter C, Meltzer JT, Souter V, Pais L, DiNonno W, Xu W, Weitzel JN, Vora NL. Maternal Malignancy After Atypical Findings on Single-Nucleotide Polymorphism-Based Prenatal Cell-Free DNA Screening. Obstet Gynecol 2023; 141:791-800. [PMID: 36897127 PMCID: PMC10026947 DOI: 10.1097/aog.0000000000005107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/15/2022] [Indexed: 03/11/2023]
Abstract
OBJECTIVE To evaluate the incidence and clinical outcomes of cell-free DNA results suspicious for maternal malignancy on prenatal cell-free DNA screening with single-nucleotide polymorphism (SNP)-based technology. METHODS This retrospective cohort study included data from SNP-based, noninvasive prenatal screening samples from a commercial laboratory from January 2015 to October 2021. Maternal plasma was screened for trisomy 21, 18, and 13; monosomy X; and triploidy. Cases were considered suspicious for maternal malignancy if retrospective bioinformatics and visual inspection of the SNP plot were suggestive of multiple maternal copy number variants across at least two of the tested chromosomes. Clinical follow-up on patients was obtained by contacting individual referring clinician offices by telephone, facsimile, or email. RESULTS A total of 2,004,428 noninvasive prenatal screening samples during the study period met criteria for inclusion in the analysis. Of these, 38 samples (0.002% or 1 in 52,748, 95% CI 1:74,539-1:38,430) had SNP-plot results that were suspicious for maternal malignancy. Maternal health outcomes were obtained in 30 of these patients (78.9%); eight were lost to follow-up. Maternal malignancy or suspected malignancy was identified in 66.7% (20/30) of the 30 patients with clinical follow-up provided by the clinic. The most common maternal malignancies were lymphoma (n=10), breast cancer (n=5), and colon cancer (n=3). CONCLUSION Results suspicious for maternal malignancy are rare with SNP-based noninvasive prenatal screening (1:53,000), but two thirds of patients who had a noninvasive prenatal screening result concerning for malignancy in this study had a cancer diagnosis. Investigation for malignancy should be recommended for all pregnant patients with this type of result. FUNDING SOURCE This study was funded by Natera, Inc.
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Affiliation(s)
- Georgina Goldring
- Natera, Inc., Austin, Texas; and the Department of Obstetrics and Gynecology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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22
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Caputo V, Ciardiello F, Corte CMD, Martini G, Troiani T, Napolitano S. Diagnostic value of liquid biopsy in the era of precision medicine: 10 years of clinical evidence in cancer. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:102-138. [PMID: 36937316 PMCID: PMC10017193 DOI: 10.37349/etat.2023.00125] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 11/13/2022] [Indexed: 03/06/2023] Open
Abstract
Liquid biopsy is a diagnostic repeatable test, which in last years has emerged as a powerful tool for profiling cancer genomes in real-time with minimal invasiveness and tailoring oncological decision-making. It analyzes different blood-circulating biomarkers and circulating tumor DNA (ctDNA) is the preferred one. Nevertheless, tissue biopsy remains the gold standard for molecular evaluation of solid tumors whereas liquid biopsy is a complementary tool in many different clinical settings, such as treatment selection, monitoring treatment response, cancer clonal evolution, prognostic evaluation, as well as the detection of early disease and minimal residual disease (MRD). A wide number of technologies have been developed with the aim of increasing their sensitivity and specificity with acceptable costs. Moreover, several preclinical and clinical studies have been conducted to better understand liquid biopsy clinical utility. Anyway, several issues are still a limitation of its use such as false positive and negative results, results interpretation, and standardization of the panel tests. Although there has been rapid development of the research in these fields and recent advances in the clinical setting, many clinical trials and studies are still needed to make liquid biopsy an instrument of clinical routine. This review provides an overview of the current and future clinical applications and opening questions of liquid biopsy in different oncological settings, with particular attention to ctDNA liquid biopsy.
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Affiliation(s)
- Vincenza Caputo
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
| | - Fortunato Ciardiello
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
| | - Carminia Maria Della Corte
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
| | - Giulia Martini
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
| | - Teresa Troiani
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
| | - Stefania Napolitano
- Medical Oncology, Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, 80131 Napoli, Italy
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23
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Pulumati A, Pulumati A, Dwarakanath BS, Verma A, Papineni RVL. Technological advancements in cancer diagnostics: Improvements and limitations. Cancer Rep (Hoboken) 2023; 6:e1764. [PMID: 36607830 PMCID: PMC9940009 DOI: 10.1002/cnr2.1764] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/20/2022] [Accepted: 11/27/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Cancer is characterized by the rampant proliferation, growth, and infiltration of malignantly transformed cancer cells past their normal boundaries into adjacent tissues. It is the leading cause of death worldwide, responsible for approximately 19.3 million new diagnoses and 10 million deaths globally in 2020. In the United States alone, the estimated number of new diagnoses and deaths is 1.9 million and 609 360, respectively. Implementation of currently existing cancer diagnostic techniques such as positron emission tomography (PET), X-ray computed tomography (CT), and magnetic resonance spectroscopy (MRS), and molecular diagnostic techniques, have enabled early detection rates and are instrumental not only for the therapeutic management of cancer patients, but also for early detection of the cancer itself. The effectiveness of these cancer screening programs are heavily dependent on the rate of accurate precursor lesion identification; an increased rate of identification allows for earlier onset treatment, thus decreasing the incidence of invasive cancer in the long-term, and improving the overall prognosis. Although these diagnostic techniques are advantageous due to lack of invasiveness and easier accessibility within the clinical setting, several limitations such as optimal target definition, high signal to background ratio and associated artifacts hinder the accurate diagnosis of specific types of deep-seated tumors, besides associated high cost. In this review we discuss various imaging, molecular, and low-cost diagnostic tools and related technological advancements, to provide a better understanding of cancer diagnostics, unraveling new opportunities for effective management of cancer, particularly in low- and middle-income countries (LMICs). RECENT FINDINGS Herein we discuss various technological advancements that are being utilized to construct an assortment of new diagnostic techniques that incorporate hardware, image reconstruction software, imaging devices, biomarkers, and even artificial intelligence algorithms, thereby providing a reliable diagnosis and analysis of the tumor. Also, we provide a brief account of alternative low cost-effective cancer therapy devices (CryoPop®, LumaGEM®, MarginProbe®) and picture archiving and communication systems (PACS), emphasizing the need for multi-disciplinary collaboration among radiologists, pathologists, and other involved specialties for improving cancer diagnostics. CONCLUSION Revolutionary technological advancements in cancer imaging and molecular biology techniques are indispensable for the accurate diagnosis and prognosis of cancer.
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Affiliation(s)
- Akhil Pulumati
- University of Missouri‐Kansas CityKansas CityMissouriUSA
| | - Anika Pulumati
- University of Missouri‐Kansas CityKansas CityMissouriUSA
| | - Bilikere S. Dwarakanath
- Central Research FacilitySri Ramachandra Institute of Higher Education and Research PorurChennaiIndia
- Department of BiotechnologyIndian Academy Degree CollegeBangaloreIndia
| | | | - Rao V. L. Papineni
- PACT & Health LLCBranfordConnecticutUSA
- Department of SurgeryUniversity of Kansas Medical CenterKansas CityKansasUSA
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24
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Vellanki PJ, Ghosh S, Pathak A, Fusco MJ, Bloomquist EW, Tang S, Singh H, Philip R, Pazdur R, Beaver JA. Regulatory implications of ctDNA in immuno-oncology for solid tumors. J Immunother Cancer 2023; 11:e005344. [PMID: 36796877 PMCID: PMC9936292 DOI: 10.1136/jitc-2022-005344] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2022] [Indexed: 02/18/2023] Open
Abstract
In the era of precision oncology, use of circulating tumor DNA (ctDNA) is emerging as a minimally invasive approach for the diagnosis and management of patients with cancer and as an enrichment tool in clinical trials. In recent years, the US Food and Drug Administration has approved multiple ctDNA-based companion diagnostic assays for the safe and effective use of targeted therapies and ctDNA-based assays are also being developed for use with immuno-oncology-based therapies. For early-stage solid tumor cancers, ctDNA may be particularly important to detect molecular residual disease (MRD) to support early implementation of adjuvant or escalated therapy to prevent development of metastatic disease. Clinical trials are also increasingly using ctDNA MRD for patient selection and stratification, with an ultimate goal of improving trial efficiency through use of an enriched patient population. Standardization and harmonization of ctDNA assays and methodologies, along with further clinical validation of ctDNA as a prognostic and predictive biomarker, are necessary before ctDNA may be considered as an efficacy-response biomarker to support regulatory decision making.
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Affiliation(s)
- Paz J Vellanki
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Soma Ghosh
- Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Anand Pathak
- Center for Devices and Radiological Health, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Michael J Fusco
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Erik W Bloomquist
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Shenghui Tang
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Harpreet Singh
- Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
- Oncology Center of Excellence, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Reena Philip
- Oncology Center of Excellence, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Richard Pazdur
- Oncology Center of Excellence, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Julia A Beaver
- Oncology Center of Excellence, US Food and Drug Administration, Silver Spring, Maryland, USA
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25
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Multifunctional Hybrid Nanozymes for Magnetic Enrichment and Bioelectrocatalytic Sensing of Circulating Tumor RNA during Minimal Residual Disease Monitoring. Catalysts 2023. [DOI: 10.3390/catal13010178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Iron oxide nanozymes are a form of nanomaterial with both superparamagnetic and enzyme-mimicking properties. Ongoing research efforts have been made to create multifunctional iron oxide hybrid nanozymes with auxiliary properties through biomolecular modifications. Such iron oxide hybrid nanozymes can be useful for rapid and cost-effective analysis of circulating tumor nucleic acids (ctNAs) in patient liquid biopsies during minimal residual disease (MRD) monitoring of cancer recurrence. Herein, the use of streptavidin-modified iron oxide hybrid nanozymes is reported for magnetic enrichment and bioelectrocatalytic sensing of three prostate cancer (PCa) ctRNA biomarkers with high detection specificity and sensitivity (10 copies) over an ultrabroad dynamic range (five orders of magnitude). Furthermore, the feasibility of ctRNA analysis for pre- and post-cancer treatment MRD monitoring is demonstrated using PCa urinary liquid biopsy samples.
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26
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Postoperative circulating tumor DNA could guide CRC adjuvant treatment. Nat Med 2023; 29:39-40. [PMID: 36646801 DOI: 10.1038/s41591-022-02119-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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27
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Molecular residual disease and efficacy of adjuvant chemotherapy in patients with colorectal cancer. Nat Med 2023; 29:127-134. [PMID: 36646802 PMCID: PMC9873552 DOI: 10.1038/s41591-022-02115-4] [Citation(s) in RCA: 102] [Impact Index Per Article: 102.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/01/2022] [Indexed: 01/18/2023]
Abstract
Despite standard-of-care treatment, more than 30% of patients with resectable colorectal cancer (CRC) relapse. Circulating tumor DNA (ctDNA) analysis may enable postsurgical risk stratification and adjuvant chemotherapy (ACT) treatment decision-making. We report results from GALAXY, which is an observational arm of the ongoing CIRCULATE-Japan study (UMIN000039205) that analyzed presurgical and postsurgical ctDNA in patients with stage II-IV resectable CRC (n = 1,039). In this cohort, with a median follow-up of 16.74 months (range 0.49-24.83 months), postsurgical ctDNA positivity (at 4 weeks after surgery) was associated with higher recurrence risk (hazard ratio (HR) 10.0, P < 0.0001) and was the most significant prognostic factor associated with recurrence risk in patients with stage II or III CRC (HR 10.82, P < 0.001). Furthermore, postsurgical ctDNA positivity identified patients with stage II or III CRC who derived benefit from ACT (HR 6.59, P < 0.0001). The results of our study, a large and comprehensive prospective analysis of ctDNA in resectable CRC, support the use of ctDNA testing to identify patients who are at increased risk of recurrence and are likely to benefit from ACT.
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28
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Feasibility of Longitudinal ctDNA Assessment in Patients with Uterine and Extra-Uterine Leiomyosarcoma. Cancers (Basel) 2022; 15:cancers15010157. [PMID: 36612153 PMCID: PMC9818540 DOI: 10.3390/cancers15010157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/22/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022] Open
Abstract
Background: Leiomyosarcomas (LMS) are aggressive malignancies with a propensity for early relapse. Current surveillance modalities include physical exam and imaging; however, radiological response to therapy may only manifest after 4-6 cycles of treatment. Herein, we evaluated the feasibility of longitudinal circulating tumor DNA (ctDNA) assessment in LMS patients to identify disease progression. Methods: We performed a retrospective review of patients with LMS who underwent treatment at Stanford Cancer Center between September 2019 and May 2022. ctDNA detection was performed using a personalized, tumor-informed ctDNA assay. Genomic analysis was conducted to characterize tumor mutation burden (TMB) and known driver mutations. Results: A total of 148 plasma samples were obtained from 34 patients with uterine (N = 21) and extrauterine (N = 13) LMS (median follow-up: 67.2 (19-346.3) weeks] and analyzed for ctDNA presence. Nineteen patients had metastatic disease. The most frequently mutated driver genes across sub-cohorts were TP53, RB1, and PTEN. Patients were stratified into four sub-cohorts (A-D) based on ctDNA kinetics. ctDNA levels tracked longitudinally with progression of disease and response to therapy. Conclusion: Our results indicate that while undetectable ctDNA may suggest a lower likelihood of relapse, ctDNA positivity may indicate progressive disease, enabling closer monitoring of patients for early clinical intervention.
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29
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Telekes A, Horváth A. The Role of Cell-Free DNA in Cancer Treatment Decision Making. Cancers (Basel) 2022; 14:6115. [PMID: 36551600 PMCID: PMC9776613 DOI: 10.3390/cancers14246115] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022] Open
Abstract
The aim of this review is to evaluate the present status of the use of cell-free DNA and its fraction of circulating tumor DNA (ctDNA) because this year July 2022, an ESMO guideline was published regarding the application of ctDNA in patient care. This review is for clinical oncologists to explain the concept, the terms used, the pros and cons of ctDNA; thus, the technical aspects of the different platforms are not reviewed in detail, but we try to help in navigating the current knowledge in liquid biopsy. Since the validated and adequately sensitive ctDNA assays have utility in identifying actionable mutations to direct targeted therapy, ctDNA may be used for this soon in routine clinical practice and in other different areas as well. The cfDNA fragments can be obtained by liquid biopsy and can be used for diagnosis, prognosis, and selecting among treatment options in cancer patients. A great proportion of cfDNA comes from normal cells of the body or from food uptake. Only a small part (<1%) of it is related to tumors, originating from primary tumors, metastatic sites, or circulating tumor cells (CTCs). Soon the data obtained from ctDNA may routinely be used for finding minimal residual disease, detecting relapse, and determining the sites of metastases. It might also be used for deciding appropriate therapy, and/or emerging resistance to the therapy and the data analysis of ctDNA may be combined with imaging or other markers. However, to achieve this goal, further clinical validations are inevitable. As a result, clinicians should be aware of the limitations of the assays. Of course, several open questions are still under research and because of it cfDNA and ctDNA testing are not part of routine care yet.
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Affiliation(s)
- András Telekes
- Omnimed-Etosz, Ltd., 81 Széher Rd., 1021 Budapest, Hungary
- Semmelweis University, 26. Üllői Rd., 1085 Budapest, Hungary
| | - Anna Horváth
- Department of Internal Medicine and Haematology, Semmelweis University, 46. Szentkirályi Rd., 1088 Budapest, Hungary
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30
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Huffman BM, Aushev VN, Budde GL, Chao J, Dayyani F, Hanna D, Botta GP, Catenacci DV, Maron SB, Krinshpun S, Sharma S, George GV, Malhotra M, Jurdi A, Moshkevich S, Aleshin A, Kasi PM, Klempner SJ. Analysis of Circulating Tumor DNA to Predict Risk of Recurrence in Patients With Esophageal and Gastric Cancers. JCO Precis Oncol 2022; 6:e2200420. [PMID: 36480779 PMCID: PMC10530958 DOI: 10.1200/po.22.00420] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/20/2022] [Accepted: 10/06/2022] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Circulating tumor DNA (ctDNA) analyses allow for postoperative risk stratification in patients with curatively treated colon and breast cancers. Use of ctDNA in esophagogastric cancers (EGC) is less characterized and could identify high-risk patients who have been treated with curative intent. METHODS In this retrospective analysis of real-world data, ctDNA levels were analyzed in the preoperative, postoperative, and surveillance settings in patients with EGC using a personalized multiplex polymerase chain reaction-based next-generation sequencing assay. Plasma samples (n = 943) from 295 patients at > 70 institutions were collected before surgery, postoperatively, and/or serially during routine clinical follow-up from September 19, 2019, to February 21, 2022. ctDNA detection was annotated to clinicopathologic features and recurrence-free survival. RESULTS A total of 295 patients with EGC were analyzed, and 212 patients with stages I-III disease were further explored. Pretreatment ctDNA was detected in 96% (23/24) of patients with preoperative time points. Postoperative ctDNA was detected in 23.5% (16/68) of patients with stage I-III EGC within 16 weeks (molecular residual disease window) after surgery without receiving systemic therapy. ctDNA detection at any time point after surgery (hazard ratio [HR], 23.6; 95% CI, 10.2 to 66.0; P < .0001), within the molecular residual disease window (HR, 10.7; 95% CI, 4.3 to 29.3; P < .0001), and during the surveillance period (HR, 17.7; 95% CI, 7.3 to 50.7; P < .0001) was associated with shorter recurrence-free survival. In multivariable analysis, ctDNA status and clinical stage of disease were independently associated with outcomes. CONCLUSION Using real-world data, we demonstrate that postoperative tumor-informed ctDNA detection in EGC is feasible and allows for enhanced patient risk stratification and prognostication during curative-intent therapy.
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Affiliation(s)
- Brandon M. Huffman
- Department of Medicine, Division of Hematology-Oncology, Massachusetts General Hospital Cancer Center, Boston, MA
| | | | | | - Joseph Chao
- City of Hope Comprehensive Cancer Center, Duarte, CA
| | - Farshid Dayyani
- University of California Irvine Chao Family Comprehensive Cancer Center, Orange, CA
| | | | | | | | | | | | | | | | | | | | | | | | - Pashtoon M. Kasi
- Weill Cornell Medicine, Englander Institute of Precision Medicine, New York Presbyterian Hospital, New York, NY
| | - Samuel J. Klempner
- Department of Medicine, Division of Hematology-Oncology, Massachusetts General Hospital Cancer Center, Boston, MA
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31
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Valenza C, Trapani D, Curigliano G. Circulating tumour DNA dynamics for assessment of molecular residual disease and for intercepting resistance in breast cancer. Curr Opin Oncol 2022; 34:595-605. [PMID: 36083118 DOI: 10.1097/cco.0000000000000905] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Longitudinal evaluation of circulating tumour DNA (ctDNA) represents a promising tool for monitoring tumour evolution. In patients with breast cancer, ctDNA dynamics for the assessment of molecular residual disease (MRD) and resistances may, respectively, help clinicians in treatment modulation of adjuvant treatments, and in anticipating resistance to ongoing treatments and switch treatments before clinical progression, to improve disease control. Anyway, the introduction of this dynamic biomarker into clinical practice requires the demonstration of analytical validity, clinical validity and clinical utility. RECENT FINDINGS In early breast cancer setting, several observational studies demonstrated the clinical validity of MRD monitoring through ctDNA in identifying patients at a higher risk of relapse, but many clinical trials evaluating the clinical utility are still ongoing, and few data resulted in inconclusive results.Instead, ctDNA dynamics for intercepting resistance have not been fully evaluated in terms of clinical validity, because monitoring schedules of most observational studies are not intensive. The only trial assessing their clinical utility (PADA-1) demonstrated a benefit in terms of progression-free survival, portraying a new landscape for clinical trials in this space. SUMMARY Rigorous clinical trials with adequate assays and patient-relevant endpoints are paramount to demonstrate the clinical utility of ctDNA dynamics and eventually increase clinical outcomes.
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Affiliation(s)
- Carmine Valenza
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, IRCCS
- Department of Oncology and Haematology, University of Milan, Milan, Italy
| | - Dario Trapani
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, IRCCS
| | - Giuseppe Curigliano
- Division of New Drugs and Early Drug Development for Innovative Therapies, European Institute of Oncology, IRCCS
- Department of Oncology and Haematology, University of Milan, Milan, Italy
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Courneya KS, Booth CM. Exercise as cancer treatment: A clinical oncology framework for exercise oncology research. Front Oncol 2022; 12:957135. [PMID: 36119508 PMCID: PMC9480835 DOI: 10.3389/fonc.2022.957135] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Exercise has been proposed as a possible cancer treatment; however, there are an infinite number of clinical oncology settings involving diverse cancer types and treatment protocols in which exercise could be tested as a cancer treatment. The primary purpose of this paper is to propose a conceptual framework to organize and guide research on exercise as a cancer treatment across distinct clinical oncology settings. A secondary purpose is to provide an overview of existing exercise research using the proposed framework. The Exercise as Cancer Treatment (EXACT) framework proposes nine distinct clinical oncology scenarios based on tumor/disease status and treatment status at the time of the proposed exercise treatment. In terms of tumor/disease status, the primary tumor has either been surgically removed (primary goal to treat micrometastases), not surgically removed (primary goal to treat the primary tumor), or metastatic disease is present (primary goal to treat metastatic disease). In terms of treatment status, the extant disease has either not been treated yet (treatment naïve), is currently being treated (active treatment), or has previously been treated. These two key clinical oncology variables—tumor/disease status and treatment status—result in nine distinct clinical oncology scenarios in which exercise could be tested as a new cancer treatment: (a) treatment naïve micrometastases, (b) actively treated micrometastases, (c) previously treated micrometastases, (d) treatment naïve primary tumors, (e) actively treated primary tumors, (f) previously treated primary tumors, (g) treatment naïve metastatic disease, (h) actively treated metastatic disease, and (i) previously treated metastatic disease. To date, most preclinical animal studies have examined the effects of exercise on treatment naïve and actively treated primary tumors. Conversely, most observational human studies have examined the associations between exercise and cancer recurrence/survival in patients actively treated or previously treated for micrometastases. Few clinical trials have been conducted in any of these scenarios. For exercise to be integrated into clinical oncology practice as a cancer treatment, it will need to demonstrate benefit in a specific clinical setting. The EXACT framework provides a simple taxonomy for systematically evaluating exercise as a potential cancer treatment across a diverse range of cancer types and treatment protocols.
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Affiliation(s)
- Kerry S. Courneya
- Faculty of Kinesiology, Sport, and Recreation, College of Health Sciences, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Kerry S. Courneya,
| | - Christopher M. Booth
- Department of Oncology, Queen’s University, Kingston, ON, Canada
- Cancer Care and Epidemiology, Cancer Research Institute, Queen’s University, Kingston, ON, Canada
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Kasi PM, Fehringer G, Aleshin A, Kopetz S. Reply to F. Dayyani et al. JCO Precis Oncol 2022; 6:e2200275. [PMID: 35834757 DOI: 10.1200/po.22.00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Pashtoon M Kasi
- Pashtoon M. Kasi, MD, MS, Weill Cornell Medicine, Meyer Cancer Center, Englander Institute of Precision Medicine, New York-Presbyterian Hospital, New York, NY; Gordon Fehringer, PhD and Alexey Aleshin, MD, Natera Inc, Austin, TX; and Scott Kopetz, MD, PhD, Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Gordon Fehringer
- Pashtoon M. Kasi, MD, MS, Weill Cornell Medicine, Meyer Cancer Center, Englander Institute of Precision Medicine, New York-Presbyterian Hospital, New York, NY; Gordon Fehringer, PhD and Alexey Aleshin, MD, Natera Inc, Austin, TX; and Scott Kopetz, MD, PhD, Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Alexey Aleshin
- Pashtoon M. Kasi, MD, MS, Weill Cornell Medicine, Meyer Cancer Center, Englander Institute of Precision Medicine, New York-Presbyterian Hospital, New York, NY; Gordon Fehringer, PhD and Alexey Aleshin, MD, Natera Inc, Austin, TX; and Scott Kopetz, MD, PhD, Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Scott Kopetz
- Pashtoon M. Kasi, MD, MS, Weill Cornell Medicine, Meyer Cancer Center, Englander Institute of Precision Medicine, New York-Presbyterian Hospital, New York, NY; Gordon Fehringer, PhD and Alexey Aleshin, MD, Natera Inc, Austin, TX; and Scott Kopetz, MD, PhD, Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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Finding Waldo: The Evolving Paradigm of Circulating Tumor DNA (ctDNA)—Guided Minimal Residual Disease (MRD) Assessment in Colorectal Cancer (CRC). Cancers (Basel) 2022; 14:cancers14133078. [PMID: 35804850 PMCID: PMC9265001 DOI: 10.3390/cancers14133078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary After the surgical removal of colorectal cancer (CRC), residual cancer cells undetectable by standard blood tests and imaging studies are responsible for cancer recurrence. Currently, chemotherapy is often administered after surgery to eradicate residual cancer cells, a decision guided by clinical and pathologic criteria, which are imprecise. Circulating tumor DNA (ctDNA) consists of DNA fragments in the bloodstream derived from cancer cells, and the presence of ctDNA likely indicates the presence of residual cancer cells. The current article discusses how ctDNA technology can help guide treatment in patients with CRC after curative surgery. Abstract Circulating tumor DNA (ctDNA), the tumor-derived cell-free DNA fragments in the bloodstream carrying tumor-specific genetic and epigenetic alterations, represents an emerging novel tool for minimal residual disease (MRD) assessment in patients with resected colorectal cancer (CRC). For many decades, precise risk-stratification following curative-intent colorectal surgery has remained an enduring challenge. The current risk stratification strategy relies on clinicopathologic characteristics of the tumors that lacks precision and results in over-and undertreatment in a significant proportion of patients. Consequently, a biomarker that can reliably identify patients harboring MRD would be of critical importance in refining patient selection for adjuvant therapy. Several prospective cohort studies have provided compelling data suggesting that ctDNA could be a robust biomarker for MRD that outperforms all existing clinicopathologic criteria. Numerous clinical trials are currently underway to validate the ctDNA-guided MRD assessment and adjuvant treatment strategies. Once validated, the ctDNA technology will likely transform the adjuvant therapy paradigm of colorectal cancer, supporting ctDNA-guided treatment escalation and de-escalation. The current article presents a comprehensive overview of the published studies supporting the utility of ctDNA for MRD assessment in patients with CRC. We also discuss ongoing ctDNA-guided adjuvant clinical trials that will likely shape future adjuvant therapy strategies for patients with CRC.
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