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Mendiola M, Heredia-Soto V, Ruz-Caracuel I, Baillo A, Ramon-Patino JL, Berjon A, Escudero FJ, Pelaez-Garcia A, Hernandez A, Feliu J, Hardisson D, Redondo A. Performance of the Idylla microsatellite instability test in endometrial cancer. Mol Cell Probes 2024; 77:101976. [PMID: 39069012 DOI: 10.1016/j.mcp.2024.101976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/25/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
CONTEXT DNA mismatch repair (MMR) deficiency (dMMR) testing is now recommended in endometrial cancer. Defect identification in the molecules participating in this pathway, or the presence of microsatellite instability, are commonly employed for this purpose. Novel methods are continuously evolving to report dMMR/microsatellite instability and to easily perform routine diagnoses. OBJECTIVE The main aim of this study was to compare the concordance of the Idylla microsatellite instability test for the identification of dMMR endometrial cancer samples defined by immunohistochemistry and MMR genomic status. DESIGN We applied the Idylla MSI test to 126 early-stage endometrial cancer cases with MMR testing by immunohistochemistry and genomic characterization (methylation in MLH1 and sequence alterations in MLH1, PMS2, MSH2 and MSH6). Individual markers and overall specific performance indicators were explored. RESULTS The Idylla platform achieved a higher global concordance rate with MMR genomic status than with immunohistochemistry (75 % and 66 %, respectively). Sensitivity and specificity are also higher (75 % vs 66 % and 96 % vs 90 %, respectively). Clustering analysis split the patients into 2 well-differentiated clusters, the pMMR and the dMMR group, represented by MLH1/PMS2 loss and the MLH1 methylated promoter. Overall, immunohistochemistry and MMR genomic status identified more dMMR cases than did the Idylla test, although correlations were improved with a modified Idylla test cut-off. CONCLUSIONS Performance of the Idylla test was better correlated with MMR genomic status than MMR immunohistochemistry status, which improved with a modified test cut-off. Further studies are needed to confirm the cut-off accuracy.
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Affiliation(s)
- Marta Mendiola
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain.
| | - Victoria Heredia-Soto
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Ignacio Ruz-Caracuel
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain
| | - Amparo Baillo
- Mathematics Department, Autonomous University of Madrid, 28049, Madrid, Spain
| | | | - Alberto Berjon
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain
| | - Francisco Javier Escudero
- Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Alberto Pelaez-Garcia
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain
| | - Alicia Hernandez
- Department of Obstetrics and Gynecology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - Jaime Feliu
- Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Medical Oncology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain; Cátedra UAM-ANGEM, Faculty of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - David Hardisson
- Molecular Pathology and Therapeutic Targets Group, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Center for Biomedical Research in the Cancer Network (CIBERONC), Instituto de Salud Carlos III, 28029, Madrid, Spain; Department of Pathology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain
| | - Andres Redondo
- Translational Oncology Research Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ), 28046, Madrid, Spain; Department of Medical Oncology, La Paz University Hospital, 28046, Madrid, Spain; School of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain; Cátedra UAM-ANGEM, Faculty of Medicine, Autonomous University of Madrid, 28046, Madrid, Spain.
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2
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Szpechcinski A, Moes-Sosnowska J, Skronska P, Lechowicz U, Pelc M, Szolkowska M, Rudzinski P, Wojda E, Maszkowska-Kopij K, Langfort R, Orlowski T, Sliwinski P, Polaczek M, Chorostowska-Wynimko J. The Advantage of Targeted Next-Generation Sequencing over qPCR in Testing for Druggable EGFR Variants in Non-Small-Cell Lung Cancer. Int J Mol Sci 2024; 25:7908. [PMID: 39063150 PMCID: PMC11277480 DOI: 10.3390/ijms25147908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
The emergence of targeted therapies in non-small-cell lung cancer (NSCLC), including inhibitors of epidermal growth factor receptor (EGFR) tyrosine kinase, has increased the need for robust companion diagnostic tests. Nowadays, detection of actionable variants in exons 18-21 of the EGFR gene by qPCR and direct DNA sequencing is often replaced by next-generation sequencing (NGS). In this study, we evaluated the diagnostic usefulness of targeted NGS for druggable EGFR variants testing in clinical NSCLC material previously analyzed by the IVD-certified qPCR test with respect to DNA reference material. We tested 59 NSCLC tissue and cytology specimens for EGFR variants using the NGS 'TruSight Tumor 15' assay (Illumina) and the qPCR 'cobas EGFR mutation test v2' (Roche Diagnostics). The sensitivity and specificity of targeted NGS assay were evaluated using the biosynthetic and biological DNA reference material with known allelic frequencies (VAF) of EGFR variants. NGS demonstrated a sufficient lower detection limit for diagnostic applications (VAF < 5%) in DNA reference material; all EGFR variants were correctly identified. NGS showed high repeatability of VAF assessment between runs (CV% from 0.02 to 3.98). In clinical material, the overall concordance between NGS and qPCR was 76.14% (Cohen's Kappa = 0.5933). The majority of discordant results concerned false-positive detection of EGFR exon 20 insertions by qPCR. A total of 9 out of 59 (15%) clinical samples showed discordant results for one or more EGFR variants in both assays. Additionally, we observed TP53 to be a frequently co-mutated gene in EGFR-positive NSCLC patients. In conclusion, targeted NGS showed a number of superior features over qPCR in EGFR variant detection (exact identification of variants, calculation of allelic frequency, high analytical sensitivity), which might enhance the basic diagnostic report.
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Affiliation(s)
- Adam Szpechcinski
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
| | - Joanna Moes-Sosnowska
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
| | - Paulina Skronska
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
| | - Urszula Lechowicz
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
| | - Magdalena Pelc
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
| | - Malgorzata Szolkowska
- Department of Pathology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (M.S.); (R.L.)
| | - Piotr Rudzinski
- Clinics of Thoracic Surgery, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (P.R.); (T.O.)
| | - Emil Wojda
- III Department of Lung Diseases and Oncology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (E.W.); (M.P.)
- II Department of Lung Diseases, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland;
| | | | - Renata Langfort
- Department of Pathology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (M.S.); (R.L.)
| | - Tadeusz Orlowski
- Clinics of Thoracic Surgery, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (P.R.); (T.O.)
| | - Pawel Sliwinski
- II Department of Lung Diseases, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland;
| | - Mateusz Polaczek
- III Department of Lung Diseases and Oncology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (E.W.); (M.P.)
| | - Joanna Chorostowska-Wynimko
- Department of Genetics and Clinical Immunology, The Institute of Tuberculosis and Lung Diseases, 01-138 Warsaw, Poland; (J.M.-S.); (P.S.); (U.L.); (M.P.); (J.C.-W.)
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Joshi P, Gogte P, Pai T, Gurav M, Dhanawade D, Karnik N, Deshpande G, Kaushal R, Shetty O. Microfluidics-based EGFR mutation detection and its implication in the resource-limited clinical setting. Int J Exp Pathol 2024; 105:90-99. [PMID: 38717047 PMCID: PMC11129959 DOI: 10.1111/iep.12503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 02/28/2024] [Accepted: 03/14/2024] [Indexed: 05/29/2024] Open
Abstract
Management of lung cancer today obligates a mutational analysis of the epidermal growth factor receptor (EGFR) gene particularly when Tyrosine Kinase Inhibitor (TKI) therapy is being considered as part of prognostic stratification. This study evaluates the performance of automated microfluidics-based EGFR mutation detection and its significance in clinical diagnostic settings. Formalin-fixed, paraffin-embedded (FFPE) samples from NSCLC patients (n = 174) were included in a two-phase study. Phase I: Validation of the platform by comparing the results with conventional real-time PCR and next-generation sequencing (NGS) platform. Phase II: EGFR mutation detection on microfluidics-based platform as part of routine diagnostics workup. The microfluidics-based platform demonstrates 96.5% and 89.2% concordance with conventional real-time PCR and NGS, respectively. The system efficiently detects mutations across the EGFR gene with 88.23% sensitivity and 100% specificity. Out of 144 samples analysed in phase II, the platform generated valid results in 94% with mutation detected in 41% of samples. This microfluidics-based platform can detect as low as 5% mutant allele fractions from the FFPE samples. Therefore the microfluidics-based platform is a rapid, complete walkaway, with minimum tissue requirement (two sections of 5 μ thickness) and technical skill requirement. The method can detect clinically actionable EGFR mutations efficiently and can be considered a reliable diagnostic platform in resource-limited settings. From receiving samples to reporting the results this platform provides accurate data without much manual intervention. The study helped to devise an algorithm that emphasizes effective screening of the NSCLC cases for EGFR mutations with varying tumour content. Thus it helps in triaging the cases judiciously before proceeding with multigene testing.
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Affiliation(s)
- Pradnya Joshi
- Molecular Pathology Division, Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Prachi Gogte
- Molecular Pathology Division, Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Trupti Pai
- Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Mamta Gurav
- Molecular Pathology Division, Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Dipika Dhanawade
- Molecular Pathology Division, Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Nupur Karnik
- Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Gauri Deshpande
- Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Rajiv Kaushal
- Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
| | - Omshree Shetty
- Molecular Pathology Division, Department of PathologyTata Memorial Hospital, Homi Bhabha National InstituteMumbaiIndia
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4
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Hawkins P, Stevenson T, Powari M. Use of cytology fluid samples for predictive biomarker testing in lung cancer patients. Cytopathology 2024; 35:242-249. [PMID: 38041234 DOI: 10.1111/cyt.13344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/19/2023] [Accepted: 11/21/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE To provide a method of directly using cytology fluid samples for predictive biomarker testing in lung cancer patients and to determine the efficacy of a variety of fluid sample types. METHOD A review of our in-house data from a range of cytology samples including endobronchial ultrasound (EBUS) fine-needle aspirate (FNA) needle washings (NW) and serous effusions tested on the Biocartis Idylla platform. All fluid samples were originally tested using Sanger sequencing. RESULTS Using our method for fluid samples all of our cytology samples tested for epithelial growth factor receptor (EGFR) yielded valid results on this platform and all variant cases identified. The data showed serous fluids provided the best quality DNA, and variant genotype reports were obtained within 150 minutes. CONCLUSION Cytology fluid samples can be used for predictive biomarker testing for lung cancer patients to provide in-house results with all fluids providing good-quality DNA.
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Affiliation(s)
- Paul Hawkins
- Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
| | - Tracey Stevenson
- Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
| | - Manish Powari
- Royal Devon University Healthcare NHS Foundation Trust, Exeter, UK
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5
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Michaelidou K, Karniadakis I, Pantelaion V, Koutoulaki C, Boukla E, Folinas K, Dimaras P, Papadaki MA, Koutsopoulos AV, Mavroudis D, Vourlakou C, Mavridis K, Agelaki S. Rapid and reliable testing for clinically actionable EGFR mutations in non-small cell lung cancer using the Idylla TM platform: a real-world two-center experience in Greece. Expert Rev Mol Diagn 2024; 24:89-98. [PMID: 38193169 DOI: 10.1080/14737159.2024.2303320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/22/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Limited information exists on epidermal growth factor receptor (EGFR) molecular epidemiology in Greece. Next-generation sequencing (NGS) is the recommended method for EGFR genotyping in NSCLC. The Idylla Biocartis platform is a fully automated system for actionable EGFR mutation detection. RESEARCH DESIGN AND METHODS We describe the prevalence of EGFR mutations in NSCLC patients in two high-volume clinical centers in Greece and compare key methods used for their determination. Eight hundred and fifty-seven FFPE samples from NSCLC patients were tested for EGFR mutations at University of Crete (UoC; n = 324) and at Evangelismos Hospital, Athens (Evangelismos; n = 503). RESULTS The prevalence of EGFR mutations was 11.1% in the whole cohort (11.5% in non-squamous). The detection rate was 11.0% by NGS, 9.8% by Sanger and 11.3% by Idylla for the whole cohort (12.0% in non-squamous). The agreement between Idylla and Sanger was 93.2%. A targetable EGFR mutation was detected in 10.0% using tissue NGS alone, and in 16.0% using concurrent Idylla ctEGFR testing. CONCLUSION The frequency of EGFR mutations was as expected for a Caucasian population. The Idylla EGFR test performance is comparable to reference methods and with a shorter TAT. Adding a concurrent plasma Idylla test to tissue NGS testing increases the detection rate of EGFR mutations in NSCLC.
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Affiliation(s)
- Kleita Michaelidou
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
| | - Ioannis Karniadakis
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
| | | | - Chara Koutoulaki
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
| | - Eleni Boukla
- Department of Medical Oncology, University General Hospital of Heraklion, Crete, Greece
| | | | - Pantelis Dimaras
- Department of Medical Oncology, University General Hospital of Heraklion, Crete, Greece
| | - Maria A Papadaki
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
| | | | - Dimitrios Mavroudis
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
- Department of Medical Oncology, University General Hospital of Heraklion, Crete, Greece
| | | | - Konstantinos Mavridis
- Institute of Molecular Biology and Biotechnology (IMBB), Foundation for Research and Technology-Hellas (FORTH), Heraklion, Crete, Greece
| | - Sofia Agelaki
- Laboratory of Translational Oncology, School of Medicine, University of Crete, Crete, Greece
- Department of Medical Oncology, University General Hospital of Heraklion, Crete, Greece
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6
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Léonce C, Guerriau C, Chalabreysse L, Duruisseaux M, Couraud S, Brevet M, Bringuier PP, Poncet DA. Comparison and Validation of Rapid Molecular Testing Methods for Theranostic Epidermal Growth Factor Receptor Alterations in Lung Cancer: Idylla versus Digital Droplet PCR. Int J Mol Sci 2023; 24:15684. [PMID: 37958668 PMCID: PMC10648419 DOI: 10.3390/ijms242115684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Targeting EGFR alterations, particularly the L858R (Exon 21) mutation and Exon 19 deletion (del19), has significantly improved the survival of lung cancer patients. From now on, the issue is to shorten the time to treatment. Here, we challenge two well-known rapid strategies for EGFR testing: the cartridge-based platform Idylla™ (Biocartis) and a digital droplet PCR (ddPCR) approach (ID_Solution). To thoroughly investigate each testing performance, we selected a highly comprehensive cohort of 39 unique del19 (in comparison, the cbioportal contains 40 unique del19), and 9 samples bearing unique polymorphisms in exon 19. Additional L858R (N = 24), L861Q (N = 1), del19 (N = 63), and WT samples (N = 34) were used to determine clear technical and biological cutoffs. A total of 122 DNA samples extracted from formaldehyde-fixed samples was used as input. No false positive results were reported for either of the technologies, as long as careful droplet selection (ddPCR) was ensured for two polymorphisms. ddPCR demonstrated higher sensitivity in detecting unique del19 (92.3%, 36/39) compared to Idylla (67.7%, 21/31). However, considering the prevalence of del19 and L858R in the lung cancer population, the adjusted theranostic values were similar (96.51% and 95.26%, respectively). ddPCR performs better for small specimens and low tumoral content, but in other situations, Idylla is an alternative (especially if a molecular platform is absent).
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Affiliation(s)
- Camille Léonce
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
- Cancer Research Center of Lyon, UMR INSERM 1052 CNRS 5286, 69008 Lyon, France
| | - Clémence Guerriau
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- CNRS UMR 5261, INSERM U 1315, LabEx DEVweCAN, Institut NeuroMyoGène (INMG), Pathophysiology and Genetics of the Neuron and Muscle (PGNM) Laboratory, Team Chromatin Dynamics, Nuclear Domains, Virus, 69008 Lyon, France
| | - Lara Chalabreysse
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
| | - Michaël Duruisseaux
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
- Cancer Research Center of Lyon, UMR INSERM 1052 CNRS 5286, 69008 Lyon, France
- Respiratory Department and Early Phase, Louis Pradel Hospital, Hospices Civils de Lyon Cancer Institute, 69100 Lyon, France
| | - Sébastien Couraud
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
- Department of Pulmonology and Thoracic Oncology, Lyon Sud Hospital, 69495 Pierre Bénite, France
| | - Marie Brevet
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
| | - Pierre-Paul Bringuier
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
| | - Delphine Aude Poncet
- Department of Pathology, Tumor Molecular Biology Unit, Groupement Hospitalier Est, Hospices Civils de Lyon, 69394 Bron, France; (C.L.); (C.G.); (L.C.); (M.B.); (P.-P.B.)
- University of Lyon, Université Claude Bernard Lyon 1, 69100 Lyon, France; (M.D.); (S.C.)
- CNRS UMR 5261, INSERM U 1315, LabEx DEVweCAN, Institut NeuroMyoGène (INMG), Pathophysiology and Genetics of the Neuron and Muscle (PGNM) Laboratory, Team Chromatin Dynamics, Nuclear Domains, Virus, 69008 Lyon, France
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7
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Khalifa E, Chapusot C, Tournier B, Sentis J, Marion E, Remond A, Aubry M, Pioche C, Bergeron A, Primois C, Blanchard L, Millière A, Boucheix M, Léger Y, Bairrao M, Brouste V, Martin L, Soubeyran I. Idylla EGFR assay on extracted DNA: advantages, limits and place in molecular screening according to the latest guidelines for non-small-cell lung cancer (NSCLC) patients. J Clin Pathol 2023; 76:698-704. [PMID: 35820776 DOI: 10.1136/jcp-2022-208325] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/28/2022] [Indexed: 11/04/2022]
Abstract
AIMS Idylla epidermal growth factor receptor (EGFR) is a fast and fully automated mutation assay that is easy to implement. However, under the Biocartis-recommended technical conditions, tissue sections are directly introduced into the cartridge, at the risk of exhausting the tumour sample. In this study, we evaluate the performance of Idylla EGFR on extracted DNA and discuss its place within the global non-small-cell lung cancer (NSCLC) screening strategy. METHODS 577 comparative tests between Idylla EGFR on extracted DNA and next-generation sequencing (NGS) were performed across two centres. RESULTS Preanalytical thresholds were established (20% tumour cell content, 50 ng DNA input) and challenged prospectively in routine practice. 16.8% of samples referred for screening were considered non eligible for Idylla EGFR testing. Due to discordant by design cases, Idylla EGFR sensitivity was 86.9% for currently actionable EGFR mutations. Idylla EGFR specificity was 100% in first-line screening. NGS was always feasible on the same DNA. CONCLUSION Idylla EGFR on extracted DNA is feasible and enables tumour material to be saved compared with tissue section use. It is not necessary to replace the analytical thresholds of the Biocartis algorithm. Due to both the limits of the mutational repertoire and the high increase of targetable genes in NSCLC, the use of Idylla EGFR should be restricted to clinical emergency situations accompanied by NGS.
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Affiliation(s)
| | - Caroline Chapusot
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Benjamin Tournier
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Julie Sentis
- Biopathology, Institut Bergonié, Bordeaux, France
| | | | - Alicia Remond
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Manon Aubry
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Célia Pioche
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | - Anthony Bergeron
- Department of Pathology, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | | | | | - Alice Millière
- Department of Pathology, Centre Hospitalier Universitaire de Dijon, Dijon, France
| | | | | | | | - Véronique Brouste
- Research and Clinical Epidemiology Unit - Biostatistics, Institut Bergonié, Bordeaux, France
| | - Laurent Martin
- Platform of Somatic Oncology of Burgundy, Centre Hospitalier Universitaire de Dijon, Dijon, France
- Department of Pathology, Centre Hospitalier Universitaire de Dijon, Dijon, France
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8
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Zhang JJ, Long ZB, Luo LL, Li LH, Yang H, Cao Y, Wang L, Wang WP. Feasibility analysis of rapid gene detection using intraoperative frozen tissues: comparison of intraoperative frozen tissues with paraffin-embedded tissues in epidermal growth factor receptor gene mutation detection of lung adenocarcinoma. J Cancer Res Clin Oncol 2023; 149:12025-12032. [PMID: 37421459 DOI: 10.1007/s00432-023-05056-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) is the driver gene with the highest frequency of mutations in lung adenocarcinoma and can guide the development of targeted therapies. The detection of routine gene mutations must be performed after the preparation of paraffin samples in a standard polymerase chain reaction (PCR) laboratory, which is time-consuming. The Idylla™ EGFR fully automatic PCR system for rapid detection requires no special detection environment and completes the process in only 2.5 h. It has been applied to tissues embedded in paraffin. METHODS The Idylla™ EGFR automated PCR system was used to detect EGFR gene mutations in intraoperative frozen fresh tissues and paraffin-embedded tissues from 47 enrolled patients with lung adenocarcinoma. The gold standard amplification refractory mutation system (ARMS) method for gene mutation detection was used for verification, and the concordance between the three detection results was compared, to investigate the feasibility of detecting rapid gene mutations in intraoperative frozen samples. RESULTS The EGFR mutation rate in 47 fresh samples of lung adenocarcinoma was 61.7% (29/47), which is consistent with the mutation level of lung adenocarcinoma in the Asian population (38.8-64.0%). The concordance rate between the Idylla™ frozen tissues and paraffin-embedded tissues was 91.4% (43/47) when compared to the ARMS method, while the coincidence rate between the two methods was 93.6% (44/47). The three methods had a total consistency rate of 89.4% (42/47). CONCLUSIONS The Idylla™ EGFR fully automatic PCR system directly detects EGFR mutations in fresh tissues. The operation is simple, the detection time is short, and the accuracy is high. The detection time is reduced to 1/4-1/3 of the original time while meeting clinical standards for detecting the gene status of patients, thus saving crucial time for individualized and accurate treatment of patients. The method has promising clinical application prospects.
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Affiliation(s)
- Juan-Juan Zhang
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Zheng-Bo Long
- Kunming University of Science and Technology, Kunming, 650031, Yunnan, China
| | - Li-Lin Luo
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Lin-Hui Li
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Hui Yang
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China
| | - Yue Cao
- Kunming University of Science and Technology, Kunming, 650031, Yunnan, China
| | - Li Wang
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China.
| | - Wan-Pu Wang
- Department of Pathology, The First People's Hospital of Yunnan Province, No. 157 Jinbi Road, Xishan District, Kunming, 650032, Yunnan, China.
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, 650032, Yunnan, China.
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9
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Treichler G, Hoeller S, Rueschoff JH, Rechsteiner M, Britschgi C, Arnold F, Zoche M, Hiltbrunner S, Moch H, Akhoundova D, Opitz I, Curioni-Fontecedro A. Improving the turnaround time of molecular profiling for advanced non-small cell lung cancer: Outcome of a new algorithm integrating multiple approaches. Pathol Res Pract 2023; 248:154660. [PMID: 37413876 DOI: 10.1016/j.prp.2023.154660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND Molecular tumor profiling to identify oncogenic drivers and actionable mutations has a profound impact on how lung cancer is treated. Especially in the subgroup of non-small cell lung cancer (NSCLC), molecular testing for certain mutations is crucial in daily clinical practice and is recommended by international guidelines. To date, a standardized approach to identify druggable genetic alterations are lacking. We have developed and implemented a new diagnostic algorithm to harmonize the molecular testing of NSCLC. PATIENTS AND METHODS In this retrospective analysis, we reviewed 119 patients diagnosed with NSCLC at the University Hospital Zurich. Tumor samples were analyzed using our standardized diagnostic algorithm: After the histological diagnosis was made, tissue samples were further analyzed by immunohistochemical stainings as well as the real-time PCR test Idylla™. Extracted DNA was further utilized for comprehensive genomic profiling (FoundationOne®CDx, F1CDx). RESULTS Out of the 119 patients were included in this study, 100 patients were diagnosed with non-squamous NSCLC (nsqNSCLC) and 19 with squamous NSCLC (sqNSCLC). The samples from the nsqNSCLC patients underwent testing by Idylla™ and were evaluated by immunohistochemistry (IHC). F1CDx analysis was run on 67 samples and 46 potentially actionable genomic alterations were detected. Ten patients received the indicated targeted treatment. The median time to test results was 4 days for the Idylla test, 5 days for IHC and 13 days for the F1CDx. CONCLUSION In patients with NSCLC, the implementation of a standardized molecular testing algorithm provided information on predictive markers for NSCLC within a few working days. The implementation of broader genomic profiling led to the identification of actionable targets, which would otherwise not have been discovered.
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Affiliation(s)
- G Treichler
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland; Department of Medical Oncology and Hematology, Cantonal Hospital Winterthur, Switzerland
| | - S Hoeller
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland; University of Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland
| | - J H Rueschoff
- Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - M Rechsteiner
- Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - C Britschgi
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; University of Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland
| | - F Arnold
- Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - M Zoche
- Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - S Hiltbrunner
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland; Faculty of Science and Medicine, University of Fribourg, Switzerland
| | - H Moch
- Department of Pathology and Molecular Pathology, University Hospital Zurich, 8091 Zurich, Switzerland
| | - D Akhoundova
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland; Department of Oncology, University Hospital Bern, Switzerland
| | - I Opitz
- University of Zurich, Switzerland; Department of Thoracic Surgery, University Hospital Zurich, Switzerland
| | - A Curioni-Fontecedro
- Department of Medical Oncology and Hematology University Hospital Zurich, Switzerland; University of Zurich, Switzerland; Comprehensive Cancer Center Zurich, Switzerland; Faculty of Science and Medicine, University of Fribourg, Switzerland; Department of Oncology, Cantonal Hospital Fribourg, Switzerland.
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10
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Qiu T, Zhang F, Zheng B, Feng Z, Li W, Zeng H, Chu L, Ying J. Ultra-rapid Idylla™ EGFR mutation screening followed by next-generation sequencing: An integrated solution to molecular diagnosis of non-small cell lung cancer. Front Oncol 2023; 13:1064487. [PMID: 37064089 PMCID: PMC10102514 DOI: 10.3389/fonc.2023.1064487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 03/21/2023] [Indexed: 04/03/2023] Open
Abstract
BackgroundRapid profiling of the EGFR mutations is crucial to help clinicians choose the optimal treatment for patients with advanced/metastatic Non-Small Cell Lung Cancer (NSCLC). Unfortunately, current diagnostic techniques, including ARMS-PCR and NGS, generally require several days to deliver final results. This diagnostic delay may lead to treatment delays for patients who are worsening rapidly.MethodsThis study introduced the ultra-rapid Idylla™ system for rapid, sensitive and specific identification of the EGFR mutations among Chinese NSCLC patients. Idylla™ EGFR Assay, an integrated cartridge running on the Idylla™ system, which can detect 51 EGFR mutations directly from Formalin-Fixed, Paraffin-Embedded (FFPE) samples within 2.5 hours, was used in this study. The sensitivity and specificity of the Idylla™ system were evaluated in comparison with ARMS-PCR or NGS using 95 clinical samples.ResultsThe Idylla™ system achieved a sensitivity of 97.6%, a specificity of 100%, and an overall concordance of 97.9% for 95 retrospective samples. When compared to ARMS-PCR, the Idylla™ system demonstrated high accuracy with an overall agreement of 97.1% (34/35), a sensitivity of 95.2% (20/21) (95% CI, 76.2% - 99.9%), and an estimated specificity of 100% (12/12) (95% CI, 76.8% - 100%) for 35 prospective samples.ConclusionsThis Idylla system provides a rapid, accurate and simple approach for screening EGFR mutations, which can guide Tyrosine Kinase Inhibitors (TKI) treatment for NSCLC patients in a timely manner.
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Affiliation(s)
- Tian Qiu
- *Correspondence: Tian Qiu, ; Jianming Ying,
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11
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Behnke A, Cayre A, De Maglio G, Giannini G, Habran L, Tarsitano M, Chetta M, Cappellen D, Lespagnol A, Le Naoures C, Massazza G, Destro A, Bonzheim I, Rau A, Battmann A, Kah B, Watkin E, Hummel M. FACILITATE: A real-world, multicenter, prospective study investigating the utility of a rapid, fully automated real-time PCR assay versus local reference methods for detecting epidermal growth factor receptor variants in NSCLC. Pathol Oncol Res 2023; 29:1610707. [PMID: 36798672 PMCID: PMC9927408 DOI: 10.3389/pore.2023.1610707] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 01/11/2023] [Indexed: 02/04/2023]
Abstract
Accurate testing for epidermal growth factor receptor (EGFR) variants is essential for informing treatment decisions in non-small cell lung cancer (NSCLC). Automated diagnostic workflows may allow more streamlined initiation of targeted treatments, where appropriate, while comprehensive variant analysis is ongoing. FACILITATE, a real-world, prospective, multicenter, European study, evaluated performance and analytical turnaround time of the Idylla™ EGFR Mutation Test compared with local reference methods. Sixteen sites obtained formalin-fixed paraffin-embedded biopsy samples with ≥ 10% neoplastic cells from patients with NSCLC. Consecutive 5 μm sections from patient samples were tested for clinically relevant NSCLC-associated EGFR variants using the Idylla™ EGFR Mutation Test and local reference methods; performance (concordance) and analytical turnaround time were compared. Between January 2019 and November 2020, 1,474 parallel analyses were conducted. Overall percentage agreement was 97.7% [n = 1,418; 95% confidence interval (CI): 96.8-98.3], positive agreement, 87.4% (n = 182; 95% CI: 81.8-91.4) and negative agreement, 99.2% (n = 1,236; 95% CI: 98.5-99.6). There were 38 (2.6%) discordant cases. Ninety percent of results were returned with an analytical turnaround time of within 1 week using the Idylla™ EGFR Mutation Test versus ∼22 days using reference methods. The Idylla™ EGFR Mutation Test performed well versus local methods and had shorter analytical turnaround time. The Idylla™ EGFR Mutation Test can thus support application of personalized medicine in NSCLC.
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Affiliation(s)
- Anke Behnke
- Charité-Universitätsmedizin Berlin, Institute of Pathology and Berlin Institute of Health, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Anne Cayre
- Département de Pathologie, Centre Jean-Perrin, Clermont-Ferrand, France
| | - Giovanna De Maglio
- Azienda Sanitaria Universitaria Friuli Centrale, Pathology Department, Santa Maria della Misericordia Hospital, Udine, Italy
| | - Giuseppe Giannini
- Department Molecular Medicine, Università di Roma La Sapienza, Rome, Italy
| | - Lionel Habran
- Anatomopathology Department, CHU Liège, Liège, Belgium
| | - Marina Tarsitano
- Di Laboratorio, A.O.R.N. Cardarelli, Medical Genetics Laboratory, and Ospedale Antonio Cardarelli, U.O.C. di Genetica Medica, Naples, Italy
| | - Massimiliano Chetta
- Di Laboratorio, A.O.R.N. Cardarelli, Medical Genetics Laboratory, and Ospedale Antonio Cardarelli, U.O.C. di Genetica Medica, Naples, Italy
| | - David Cappellen
- Service de Biologie des Tumeurs, Centre Hospitalier Universitaire de Bordeaux, Hôpital du Haut Lévêque, Pessac, France
| | - Alexandra Lespagnol
- CHU de Rennes, Laboratoire de Génétique Somatique des Cancers, Rennes, France
| | - Cecile Le Naoures
- CHU de Rennes, Service d’Anatomie et Cytologie Pathologiques, Rennes, France
| | - Gabriella Massazza
- Dipartimento Medicina di Laboratorio Anatomia Patologica, ASST Papa Giovanni XXIII, Bergamo, BG, Italy
| | - Annarita Destro
- Pathology Department, Humanitas Clinical and Research Center—IRCCS, Milan, Italy
| | - Irina Bonzheim
- Institute of Pathology and Neuropathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
| | - Achim Rau
- Institute of Pathology and Neuropathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
| | - Achim Battmann
- Institut für Pathologie und Zytodiagnostik am Krankenhaus Nordwest, Frankfurt, Germany
| | - Bettina Kah
- Institut für Hämatopathologie Hamburg, Hamburg, Germany
| | | | - Michael Hummel
- Charité-Universitätsmedizin Berlin, Institute of Pathology and Berlin Institute of Health, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany,*Correspondence: Michael Hummel,
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12
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Development of 99mTc-Hynic-Adh-1 Molecular Probe Specifically Targeting N-Cadherin and Its Preliminary Experimental Study in Monitoring Drug Resistance of Non-Small-Cell Lung Cancer. Cancers (Basel) 2023; 15:cancers15030755. [PMID: 36765712 PMCID: PMC9913320 DOI: 10.3390/cancers15030755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/15/2023] [Accepted: 01/20/2023] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND N-cadherin is considered a characteristic protein of EMT and has been found to be closely related to tumor resistance. In this study, a novel molecular imaging probe, 99mTc-HYNIC-ADH-1, was developed, and its diagnostic value in monitoring drug resistance in NSCLC was preliminarily investigated. METHODS ADH-1 was labeled indirectly with 99mTc. Radiochemical purity and stability, partition coefficients and pharmacokinetics were evaluated. Additionally, the fluorescent probe of ADH-1 was synthesized to study tumor uptake in cells level and in vivo. Biodistribution analysis and small animal SPECT/CT were performed in PC9GR and PC9 tumor-bearing mice. RESULTS 99mTc-HYNIC-ADH-1 was highly stable (radiochemical purity ≥ 98% in PBS and serum after 24 h). A cell binding study and fluorescence imaging showed that the uptake was significantly higher in PC9GR cells (gefitinib-resistant) than in PC9 cells (nonresistant) (p < 0.05). Biodistribution analysis showed rapid blood clearance and significant uptake in the kidney and resistant tumor. Small animal SPECT/CT studies showed that uptake in PC9GR tumors (T/NT = 7.73 ± 0.54) was significantly higher than that in PC9 tumors (T/NT = 3.66 ± 0.78) at 1 h (p = 0.002). CONCLUSIONS The 99mTc-HYNIC-ADH-1 molecular probe has a short synthesis time, high labeling rate, high radiochemical purity and good stability, does not require purification, is characterized by rapid blood clearance and is mainly excreted through the urinary system. 99mTc-HYNIC-ADH-1 is considered a promising probe for monitoring drug resistance in NSCLC.
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13
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Banyi N, Alex D, Hughesman C, McNeil K, N. Ionescu D, Ma C, Yip S, Melosky B. Improving Time-to-Treatment for Advanced Non-Small Cell Lung Cancer Patients through Faster Single Gene EGFR Testing Using the Idylla™ EGFR Testing Platform. Curr Oncol 2022; 29:7900-7911. [PMID: 36290901 PMCID: PMC9600153 DOI: 10.3390/curroncol29100624] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/29/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
INTRODUCTION Patients with advanced-stage non-small cell lung cancer (NSCLC) may benefit from a short time-to-treatment (TTT). Predictive biomarker testing is performed prior to treatment, as recommended by various international expert consensus bodies. Genetic testing is more time-intensive than immunohistochemistry (IHC) and commonly contributes to prolonged TTT. For epidermal growth factor receptor-positive patients (EGFR+), further genetic testing may not be required due to the mutual exclusivity of actionable mutations. METHODS The trial cohort (N = 238) received both BC Cancer NGS panel (Oncopanel) and Idylla EGFR testing. Data were also collected for a control cohort (N = 220) that received Oncopanel testing. For each patient, the time that the lab received the sample, the time taken to report the NGS and Idylla tests, the time of first treatment, and the final treatment regimen were recorded. RESULTS A concordance frequency of 98.7% (232/235) was observed between the Idylla and NGS panel. The lab turnaround time (TAT) was faster for the Idylla test by an average of 12.4 days (N = 235, p < 0.01). Overall, the average TTT in the trial cohort (N = 114) was 10.1 days faster (p < 0.05) than the control (N = 114), leading to a 25% reduction in TTT. For patients treated based on EGFR positivity, the mean TTT was 16.8 days faster (p < 0.05) in the trial cohort (N = 33) than the control cohort (N = 28), leading to a 48% reduction in TTT. CONCLUSION Using the Idylla EGFR test as part of the molecular testing repertoire in advanced-stage NSCLC patients could significantly reduce TTT.
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Affiliation(s)
- Norbert Banyi
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Department of Pathology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Deepu Alex
- Department of Pathology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Cancer Genetics and Genomics Laboratory, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Curtis Hughesman
- Cancer Genetics and Genomics Laboratory, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Kelly McNeil
- Cancer Genetics and Genomics Laboratory, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Diana N. Ionescu
- Department of Pathology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Carmen Ma
- Medical Oncology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Stephen Yip
- Department of Pathology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Cancer Genetics and Genomics Laboratory, BC Cancer, Vancouver, BC V5Z 4E6, Canada
| | - Barbara Melosky
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
- Medical Oncology, BC Cancer, Vancouver, BC V5Z 4E6, Canada
- Correspondence: ; Tel.: +1-604-877-6000; Fax: +1-604-877-0585
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14
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Wolff HB, Steeghs EMP, Mfumbilwa ZA, Groen HJM, Adang EM, Willems SM, Grünberg K, Schuuring E, Ligtenberg MJL, Tops BBJ, Coupé VMH. Cost-Effectiveness of Parallel Versus Sequential Testing of Genetic Aberrations for Stage IV Non-Small-Cell Lung Cancer in the Netherlands. JCO Precis Oncol 2022; 6:e2200201. [PMID: 35834758 PMCID: PMC9307305 DOI: 10.1200/po.22.00201] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
PURPOSE A large number of targeted treatment options for stage IV nonsquamous non–small-cell lung cancer with specific genetic aberrations in tumor DNA is available. It is therefore important to optimize diagnostic testing strategies, such that patients receive adequate personalized treatment that improves survival and quality of life. The aim of this study is to assess the efficacy (including diagnostic costs, turnaround time (TAT), unsuccessful tests, percentages of correct findings, therapeutic costs, and therapeutic effectiveness) of parallel next generation sequencing (NGS)–based versus sequential single-gene–based testing strategies routinely used in patients with metastasized non–small-cell lung cancer in the Netherlands. METHODS A diagnostic microsimulation model was developed to simulate 100,000 patients with prevalence of genetic aberrations, extracted from real-world data from the Dutch Pathology Registry. These simulated patients were modeled to undergo different testing strategies composed of multiple tests with different test characteristics including single-gene and panel tests, test accuracy, the probability of an unsuccessful test, and TAT. Diagnostic outcomes were linked to a previously developed treatment model, to predict average long-term survival, quality-adjusted life-years (QALYs), costs, and cost-effectiveness of parallel versus sequential testing. RESULTS NGS-based parallel testing for all actionable genetic aberrations is on average €266 cheaper than single-gene–based sequential testing, and detects additional relevant targetable genetic aberrations in 20.5% of the cases, given a TAT of maximally 2 weeks. Therapeutic costs increased by €8,358, and 0.12 QALYs were gained, leading to an incremental cost-effectiveness ratio of €69,614/QALY for parallel versus sequential testing. CONCLUSION NGS-based parallel testing is diagnostically superior over single-gene–based sequential testing, as it is cheaper and more effective than sequential testing. Parallel testing remains cost-effective with an incremental cost-effectiveness ratio of 69,614 €/QALY upon inclusion of therapeutic costs and long-term outcomes.
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Affiliation(s)
- Henri B Wolff
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
| | - Elisabeth M P Steeghs
- Department of Pathology, Radboudumc, Nijmegen, the Netherlands.,Department of Pathology, Antoni van Leeuwenhoek Hospital, the Netherlands Cancer Institute, Amsterdam, the Netherlands.,Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
| | - Zakile A Mfumbilwa
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
| | - Harry J M Groen
- Department of Pulmonary Diseases, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands
| | - Eddy M Adang
- Department of Epidemiology, Biostatistics and HTA, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Stefan M Willems
- Department of Pathology and Medical Biology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.,PALGA Foundation, Houten, the Netherlands
| | | | - Ed Schuuring
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Marjolijn J L Ligtenberg
- Department of Pathology, Radboudumc, Nijmegen, the Netherlands.,Department of Human Genetics, and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Bastiaan B J Tops
- Princess Máxima Center for Pediatric Oncology, Bilthoven, the Netherlands
| | - Veerle M H Coupé
- Department of Epidemiology and Biostatistics, Amsterdam University Medical Center, VU Amsterdam, Amsterdam, the Netherlands
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15
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Depoilly T, Garinet S, van Kempen LC, Schuuring E, Clavé S, Bellosillo B, Ercolani C, Buglioni S, Siemanowski J, Merkelbach-Bruse S, Tischler V, Demes MC, Paridaens H, Sibille C, de Montpreville VT, Rouleau E, Bartczak A, Pasieka-Lis M, Wei Teo RY, Chuah KL, Barbosa M, Quintana C, Biscuola M, Delgado-Garcia M, Vacirca D, Rappa A, Cashmore M, Smith M, Jasionowicz P, Meeney A, Desmeules P, Terris B, Mansuet-Lupo A. Multicenter Evaluation of the Idylla GeneFusion in Non-Small-Cell Lung Cancer. J Mol Diagn 2022; 24:1021-1030. [PMID: 35718095 DOI: 10.1016/j.jmoldx.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/20/2022] [Accepted: 05/17/2022] [Indexed: 11/25/2022] Open
Abstract
Targeted therapy in lung cancer requires the assessment of multiple oncogenic driver alterations, including fusion genes. This retrospective study evaluated the Idylla GeneFusion prototype, an automated and ease-of-use (<2 minutes) test, with a short turnaround time (3 hours) to detect fusions involving ALK, ROS1, RET, and NTRK1/2/3 genes and MET exon 14 skipping. This multicenter study (18 centers) included 313 tissue samples from lung cancer patients with 97 ALK, 44 ROS1, 20 RET, and 5 NTRKs fusions, 32 MET exon 14 skipping, and 115 wild-type samples, previously identified with reference methods (RNA-based next generation sequencing/fluorescence in situ hybridization/quantitative PCR). Valid results were obtained for 306 cases (98%), overall concordance between Idylla and the reference methods was 89% (273/306); overall sensitivity and specificity were 85% (165/193) and 96% (108/113), respectively. Discordances were observed in 28 samples, where Idylla did not detect the alteration identified by the reference methods; and 5 samples where Idylla identified an alteration not detected by the reference methods. All of the ALK-, ROS1-, and RET-specific fusions and MET exon 14 skipping identified by Idylla GeneFusion were confirmed by reference method. To conclude, Idylla GeneFusion is a clinically valuable test that does not require a specific infrastructure, allowing a rapid result. The absence of alteration or the detection of expression imbalance only requires additional testing by orthogonal methods.
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Affiliation(s)
- Thomas Depoilly
- Department of Pathology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Simon Garinet
- Department of Biochemistry, Unit of Pharmacogenetics and Molecular Oncology, Georges Pompidou European Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Léon C van Kempen
- Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Ed Schuuring
- Department of Pathology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Sergi Clavé
- Department of Pathology, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Beatriz Bellosillo
- Department of Pathology, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Cristiana Ercolani
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Simonetta Buglioni
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Janna Siemanowski
- Faculty of Medicine and University Hospital Cologne, Institute of Pathology, University of Cologne, Cologne, Germany
| | - Sabine Merkelbach-Bruse
- Faculty of Medicine and University Hospital Cologne, Institute of Pathology, University of Cologne, Cologne, Germany
| | - Verena Tischler
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | | | | | | | | | - Etienne Rouleau
- Service de Génétique des Tumeurs, Gustave Roussy Cancer Campus Grand Paris, Villejuif, France
| | - Artur Bartczak
- Department of Pathomorphology, Public Specialist Hospital of Lung Diseases in Zakopane, Zakopane, Poland
| | - Monika Pasieka-Lis
- Department of Pathomorphology, Public Specialist Hospital of Lung Diseases in Zakopane, Zakopane, Poland
| | - Ryan Yee Wei Teo
- Department of Pathology, Tan Tock Seng Hospital, Novena, Republic of Singapore
| | - Khoon Leong Chuah
- Department of Pathology, Tan Tock Seng Hospital, Novena, Republic of Singapore
| | - Marta Barbosa
- Serviço de Anatomia Patológica, Hospital do Espírito Santo de Évora, Évora, Portugal
| | - Carlos Quintana
- Serviço de Anatomia Patológica, Hospital do Espírito Santo de Évora, Évora, Portugal
| | - Michele Biscuola
- Department of Pathology, Molecular Pathology Laboratory, Hospital Universitario Virgen del Rocío-IBIS, Seville, Spain
| | - Mercedes Delgado-Garcia
- Department of Pathology, Molecular Pathology Laboratory, Hospital Universitario Virgen del Rocío-IBIS, Seville, Spain
| | - Davide Vacirca
- Division of Pathology and Laboratory Medicine, European Institute of Oncology (IEO), IRCCS, Milan, Italy
| | - Alessandra Rappa
- Division of Pathology and Laboratory Medicine, European Institute of Oncology (IEO), IRCCS, Milan, Italy
| | - Matthew Cashmore
- Black Country Pathology Services, New Cross Hospital, The Royal Wolverhampton NHS Trust, Wolverhampton, United Kingdom
| | - Matthew Smith
- Pathology Department, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Piotr Jasionowicz
- Pathology Department, Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
| | - Adam Meeney
- Sheffield Teaching Hospitals NHS Foundation Trust, Pathology Laboratory, Royal Hallamshire Hospital, Sheffield, United Kingdom
| | - Patrice Desmeules
- Departement d'Anatomopathologie et Cytologie, Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Québec, Canada
| | - Benoit Terris
- Department of Pathology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France
| | - Audrey Mansuet-Lupo
- Department of Pathology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Université Paris Cité, Paris, France.
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Use of the Biocartis Idylla™ Platform for the Detection of Epidermal Growth Factor Receptor, BRAF and KRAS Proto-Oncogene Mutations in Liquid-Based Cytology Specimens from Patients with Non-Small Cell Lung Carcinoma and Pancreatic Adenocarcinoma. JOURNAL OF MOLECULAR PATHOLOGY 2022. [DOI: 10.3390/jmp3020010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The study aimed to demonstrate rapid and effective molecular testing on liquid-based cytology (LBC) samples for EGFR, KRAS and BRAF mutations using the Biocartis Idylla™. Rapid on-site evaluation (ROSE) LBC samples for patients with non-small cell lung carcinoma (NSCLC) or pancreatic ductal adenocarcinoma (PDAC) were tested for EGFR, KRAS and BRAF mutations based on the relevance to tumour subtype. The quantification values (Cq values) and mutation detection status were compared between LBC samples and routine formalin-fixed paraffin-embedded (FFPE) clot samples. ROSE LBC samples (n = 54) showed a higher yield of well-preserved tumour and wild type (WT) DNA, demonstrated by lower quantification cycles, no false positives or false negatives, and a higher sensitivity for low allele frequency mutations when compared with FFPE clot samples. The Biocartis Idylla™ provides highly sensitive, reliable and rapid testing for LBC samples for the detection of EFGR and KRAS mutations. BRAF mutations were not detected in the participant cohort; however, all LBC WT BRAF results correlated with the results from the FFPE clot samples. Access to rapid molecular testing using LBC samples can detect the most frequent driver mutations closer to the time of diagnosis, enabling the selection of the most effective first-line targeted therapy sooner, reducing delays or side effects from suboptimal treatments, patient anxiety and costs to healthcare systems, whilst improving patient outcomes.
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Nkosi D, Casler VL, Syposs CR, Oltvai ZN. Utility of Select Gene Mutation Detection in Tumors by the Idylla Rapid Multiplex PCR Platform in Comparison to Next-Generation Sequencing. Genes (Basel) 2022; 13:genes13050799. [PMID: 35627184 PMCID: PMC9141835 DOI: 10.3390/genes13050799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/24/2022] [Accepted: 04/26/2022] [Indexed: 02/01/2023] Open
Abstract
Testing of tumors by next generation sequencing (NGS) is impacted by relatively long turnaround times and a need for highly trained personnel. Recently, Idylla oncology assays were introduced to test for BRAF, EGFR, KRAS, and NRAS common hotspot mutations that do not require specialized trained personnel. Moreover, the interpretation of results is fully automated, with rapid turnaround time. Though Idylla testing and NGS have been shown to have high concordance in identifying EGFR, BRAF, KRAS, and NRAS hotspot mutations, there is limited experience on optimal ways the Idylla system can be used in routine practice. We retrospectively evaluated all cases with EGFR, BRAF, KRAS, or NRAS mutations identified in clinical specimens sequenced on two different NGS panels at the University of Rochester Medical Center (URMC) molecular diagnostics laboratory between July 2020 and July 2021 and assessed if these mutations would be detected by the Idylla cartridges if used. We found that the Idylla system could accurately identify Tier 1 or 2 actionable genomic alterations in select associated disease pathologies if used. Yet, in a minority of cases, we would have been unable to detect NGS-identified pathogenic mutations due to their absence on the Idylla panels. We derived algorithmic practice guidelines for the use of the Idylla cartridges. Overall, Idylla molecular testing could be implemented either as a first-line standalone diagnostic tool in select indications or for orthogonal confirmation of uncertain results.
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Finall A, Davies G, Jones T, Emlyn G, Huey P, Mullard A. Integration of rapid PCR testing as an adjunct to NGS in diagnostic pathology services within the UK: evidence from a case series of non-squamous, non-small cell lung cancer (NSCLC) patients with follow-up. J Clin Pathol 2022; 76:391-399. [PMID: 35042754 DOI: 10.1136/jclinpath-2021-207987] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/02/2021] [Indexed: 11/04/2022]
Abstract
AIMS Somatic genetic testing in non-squamous, non-small cell lung carcinoma (NSCLC) patients is required to highlight subgroups eligible for a number of novel oncological therapies. This study aims to determine whether turnaround times for reporting epidermal growth factor receptors (EGFR) by next-generation sequencing (NGS) alone is sufficient to meet the needs of lung cancer patients. METHODS We performed a retrospective case series with follow-up. Outcomes of EGFR testing (102 tests) in 96 patients by NGS were compared with a rapid, fully automated PCR-based platform (Idylla) in local histopathology laboratories. RESULTS Turnaround time for reporting NGS was 17 calendar days. Reporting using the Idylla EGFR Mutation Test, by contrast, gave a potential turnaround time of 3.8 days from request to authorisation. Three-quarters of patients presenting with stage IV disease had a performance status of 0, 1, or 2 but 18% experienced rapid clinical deterioration (p<0.05). A third of these patients were deceased by the time NGS reports were available. CONCLUSIONS We discuss issues around integrating rapid PCR testing alongside NGS in multidisciplinary care pathways and strategies for mitigating against foreseeable difficulties. Dual testing for stage IV non-squamous, NSCLC patients has the potential to improve care and survival outcomes by providing access to the right test at the right time.
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Affiliation(s)
- Alison Finall
- Cellular Pathology, Swansea Bay University Health Board, Port Talbot, UK .,Medical School, Swansea University, Swansea, UK
| | - Gareth Davies
- Cellular Pathology, Swansea Bay University Health Board, Port Talbot, UK
| | - Trevor Jones
- Cellular Pathology, Swansea Bay University Health Board, Port Talbot, UK
| | - Gwion Emlyn
- Cellular Pathology, Betsi Cadwaladr University Health Board, Bangor, UK
| | - Pearl Huey
- Cellular Pathology, Betsi Cadwaladr University Health Board, Bangor, UK
| | - Anna Mullard
- Oncology, Betsi Cadwaladr University Health Board, Bangor, UK
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Bourhis A, Remoué A, Samaison L, Uguen A. Diagnostic mutationnel rapide Idylla™ : applications théranostiques actuelles et futures. Ann Pathol 2022; 42:329-343. [DOI: 10.1016/j.annpat.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 12/07/2021] [Accepted: 12/12/2021] [Indexed: 10/19/2022]
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Petiteau C, Robinet-Zimmermann G, Riot A, Dorbeau M, Richard N, Blanc-Fournier C, Bibeau F, Deshayes S, Bergot E, Gervais R, Levallet G. Contribution of the Idylla TM System to Improving the Therapeutic Care of Patients with NSCLC through Early Screening of EGFR Mutations. Curr Oncol 2021; 28:4432-4445. [PMID: 34898548 PMCID: PMC8628756 DOI: 10.3390/curroncol28060376] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/22/2021] [Accepted: 11/02/2021] [Indexed: 12/13/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) genotyping, a critical examen for the treatment decisions of patients with non-small cell lung cancer (NSCLC), is commonly assayed by next-generation sequencing (NGS), but this global approach takes time. To determine whether rapid EGFR genotyping tests by the IdyllaTM system guides earlier therapy decisions, EGFR mutations were assayed by both the IdyllaTM system and NGS in 223 patients with NSCLC in a bicentric prospective study. IdyllaTM demonstrated agreement with the NGS method in 187/194 cases (96.4%) and recovered 20 of the 26 (77%) EGFR mutations detected using NGS. Regarding the seven missed EGFR mutations, five were not detected by the IdyllaTM system, one was assayed in a sample with insufficient tumoral cells, and the last was in a sample not validated by the IdyllaTM system (a bone metastasis). IdyllaTM did not detect any false positives. The average time between EGFR genotyping results from IdyllaTM and the NGS method was 9.2 ± 2.2 working days (wd) (12.6 ± 4.0 calendar days (cd)). Subsequently, based on the IdyllaTM method, the timeframe from tumor sampling to the initiation of EGFR-TKI was 7.7 ± 1.2 wd (11.4 ± 3.1 cd), while it was 20.3 ± 6.7 wd (27.2 ± 8.3 cd) with the NGS method (p < 0.001). We thus demonstrated here that the IdyllaTM system contributes to improving the therapeutic care of patients with NSCLC by the early screening of EGFR mutations.
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Affiliation(s)
- Constance Petiteau
- Department of Pulmonology & Thoracic Oncology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (C.P.); (S.D.); (E.B.)
| | | | - Adèle Riot
- Department of Pathology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (A.R.); (F.B.)
| | - Marine Dorbeau
- Department of Pathology, Centre François Baclesse, F-14000 Caen, France; (G.R.-Z.); (M.D.); (C.B.-F.)
| | - Nicolas Richard
- Department of Genetics, Normandy University, UNICAEN, Caen University Hospital, EA 7450 BioTARGen, F-14000 Caen, France;
- Federative Structure of Cyto-Molecular Oncogenetics (SF-MOCAE), Centre Hospitalier Universitaire de Caen, F-14000 Caen, France
| | - Cécile Blanc-Fournier
- Department of Pathology, Centre François Baclesse, F-14000 Caen, France; (G.R.-Z.); (M.D.); (C.B.-F.)
| | - Frédéric Bibeau
- Department of Pathology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (A.R.); (F.B.)
| | - Simon Deshayes
- Department of Pulmonology & Thoracic Oncology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (C.P.); (S.D.); (E.B.)
| | - Emmanuel Bergot
- Department of Pulmonology & Thoracic Oncology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (C.P.); (S.D.); (E.B.)
- Normandy University, UNICAEN, CEA, CNRS, ISTCT Unit, GIP CYCERON, F-14000 Caen, France
| | - Radj Gervais
- Department of Thoracic Oncology, Centre François Baclesse, F-14000 Caen, France;
| | - Guénaëlle Levallet
- Department of Pathology, Centre Hospitalier Universitaire de Caen, F-14000 Caen, France; (A.R.); (F.B.)
- Federative Structure of Cyto-Molecular Oncogenetics (SF-MOCAE), Centre Hospitalier Universitaire de Caen, F-14000 Caen, France
- Normandy University, UNICAEN, CEA, CNRS, ISTCT Unit, GIP CYCERON, F-14000 Caen, France
- Correspondence:
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21
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Hawkins P, Stevenson T, Powari M. Use of the Idylla EGFR Mutation Test for Variant Detection in Non-Small Cell Lung Cancer Samples. Am J Clin Pathol 2021; 156:653-660. [PMID: 33877290 DOI: 10.1093/ajcp/aqab003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES Stratified management of patients with non-small cell lung carcinoma (NSCLC) through epithelial growth factor receptor (EGFR) variant analysis has become standard clinical practice. The Idylla system is a fully compliant European in vitro diagnostics device, a fully automated platform designed to rapidly genotype formalin-fixed paraffin-embedded tissue samples. This retrospective study aims to validate the Idylla EGFR Mutation Test for use with extracted DNA from known NSCLC samples. METHODS In this study, 20 µL of archival extracted DNA was placed directly inside the Idylla EGFR assay single-use cartridge. Idylla results were compared with the original Sanger sequencing reference method. RESULTS The Idylla EGFR Mutation Test yielded valid results for all samples tested, confirming the variants identified by the reference method that lay within the Idylla target range. No false-positive cases were noted with the Idylla assay. Variant genotype reports were obtained within 150 minutes. CONCLUSIONS The Idylla EGFR assay is sensitive for extracted DNA and can be reliably applied to cytologic specimens, enabling its implementation as an ancillary first-line test for patients with NSCLC.
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Affiliation(s)
- Paul Hawkins
- Department of Cellular Pathology, Royal Devon and Exeter NHS Foundation Trust, DevonUK
| | - Tracey Stevenson
- Department of Cellular Pathology, Royal Devon and Exeter NHS Foundation Trust, DevonUK
| | - Manish Powari
- Department of Cellular Pathology, Royal Devon and Exeter NHS Foundation Trust, DevonUK
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22
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Ercolani C, Di Benedetto A, Bonomo C, Visca P, Palange A, Assisi D, Forcella D, Terrenato I, Pescarmona E, Ciliberto G, Cecere FL, Cappuzzo F, Buglioni S. Not enough can be enough: feasibility of the Idylla EGFR mutation test when reuse of stained tissue slides is the only option available. J Clin Pathol 2021; 75:844-850. [PMID: 34400544 DOI: 10.1136/jclinpath-2021-207726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/27/2021] [Indexed: 11/03/2022]
Abstract
AIMS The minimally invasive procedures used in the diagnostic workup of patients with advanced non-small cell lung cancer (NSCLC) often provide poor yields of pathological material suitable for molecular analyses. Not infrequently, the DNA yield from small biopsies/cytological samples is insufficient for the assessment of genomic biomarkers that inform personalised therapies. The Idylla EGFR mutation test (IEMT) has been specifically designed to process formalin-fixed paraffin-embedded sections without requiring preliminary DNA extraction.This study aims to evaluate the diagnostic accuracy of IEMT when used to analyse archival histopathology material. More specifically, our objective was to establish whether or not different staining procedures could affect assay performance. METHODS Twenty NSCLC samples were selected accordingly to EGFR mutational status. To mimic archived stained material, sections were subjected to H&E staining, fluorescent in situ hybridisation analyses or immunodetection by immunohistochemistry before being processed for IEMT. RESULTS Parallel assessment of EGFR mutational status by IEMT on stained sections and next-generation sequencing on DNA yielded a concordant result in 50 out of 60 tests (83.3%). The discoloration of H&E of the archived sample was found to be the optimal procedure to highlight all the actionable alterations of EGFR. CONCLUSIONS IEMT can provide remarkable diagnostic accuracy for the assessment of EGFR mutational status also when the only source of pathological material available for molecular analyses is represented by H&E stained sections. Ad hoc supervision by a qualified molecular biologist is in any case recommended.
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Affiliation(s)
- Cristiana Ercolani
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Anna Di Benedetto
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Claudia Bonomo
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Paolo Visca
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Aldo Palange
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Daniela Assisi
- Department of Digestive Endoscopy, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Daniele Forcella
- Thoracic Surgery, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Irene Terrenato
- Biostatistics-Scientific Direction, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Edoardo Pescarmona
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Gennaro Ciliberto
- Scientific Direction, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Fabiana Letizia Cecere
- Division of Medical Oncology 1, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Federico Cappuzzo
- Division of Medical Oncology 2, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Simonetta Buglioni
- Pathology Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
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Evaluation of the Idylla ctEGFR mutation assay to detect EGFR mutations in plasma from patients with non-small cell lung cancers. Sci Rep 2021; 11:10470. [PMID: 34006948 PMCID: PMC8131701 DOI: 10.1038/s41598-021-90091-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 04/26/2021] [Indexed: 01/13/2023] Open
Abstract
The assessment of EGFR mutations is recommended for the management of patients with non-small cell lung cancer (NSCLC). Presence of EGFR mutation is associated with response or resistance to EGFR tyrosine kinase inhibitors (EGFR-TKI). Liquid biopsy is nowadays widely used for the detection of resistance to EGFR-TKI. We evaluated here the performance of the Idylla ctEGFR mutation assay for the detection of EGFR mutations in circulating tumour DNA (ctDNA) in plasma from patients with NSCLC. Previously characterized plasma samples from 38 patients with NSCLC were analysed using 2 different analytical conditions (C1 and C2). The limit of detection (LOD) was evaluated using 2 mL of healthy donor plasma spiked with commercial DNA controls. Overall agreement, sensitivity and specificity were 92.1%, 86.7% and 95.7% for C1 condition respectively and 94.7%, 86.7% and 100% for C2 condition respectively. The T790M secondary resistance mutation was detected in two samples out of 3. The Idylla system was able to detect the exon 19 deletion from 6 copies/mL and up to 91 copies/mL for the G719S mutation. These results support that the Idylla ctEGFR mutation assay is a rapid option for the detection of EGFR hotspots mutations in plasma samples, however a particular attention is needed for its interpretation.
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24
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Testing EGFR with Idylla on Cytological Specimens of Lung Cancer: A Review. Int J Mol Sci 2021; 22:ijms22094852. [PMID: 34063720 PMCID: PMC8125729 DOI: 10.3390/ijms22094852] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/30/2021] [Accepted: 04/30/2021] [Indexed: 12/14/2022] Open
Abstract
The current standard of care for advanced non-small-cell lung cancer is based on detecting actionable mutations that can benefit from targeted therapy. Comprehensive genetic tests can have long turn-around times, and because EGFR mutations are the most prevalent actionable mutation, a quick detection would enable a prompt initiation of targeted therapy. Furthermore, the scarcity of diagnostic material means that sometimes only cytologic material is available. The Idylla™ EGFR assay is a real-time PCR–based method able to detect 51 EGFR mutations in 2.5 h. Idylla is validated for use only on FFPE sections, but some researchers described their experiences with cytological material. We reviewed the relevant literature, finding four articles describing 471 cases and many types of cytological input material: smears, cell-block sections, suspensions, and extracted DNA. The sensitivity, specificity, and limit of detection appear comparable to those obtained with histological input material, with one exception: the usage of scraped stained smears as input may reduce the accuracy of the test. In conclusion, usage of cytological material as input to the Idylla EGFR test is possible. A workflow where common mutations are tested first and fast, leaving rarer mutations for subsequent comprehensive profiling, seems the most effective approach.
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25
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Haiduk T, Brockmann M, Tillmann RL, Pieper M, Lüsebrink J, Schildgen V, Schildgen O. Comparison of Biocartis IDYLLA ™ cartridge assay with Qiagen GeneReader NGS for detection of targetable mutations in EGFR, KRAS/NRAS, and BRAF genes. Exp Mol Pathol 2021; 120:104634. [PMID: 33773991 DOI: 10.1016/j.yexmp.2021.104634] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/29/2020] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
Lung and colorectal cancers (CRC) have two of the highest mortality rates among all cancer types, and their occurrence and the need for personalized diagnostics and subsequent therapy were not influenced by the COVID-19 pandemics. However, due to the disruption of established delivery chains, standard assays for in vitro diagnostics of those cancers were temporarily not available, forcing us to implement alternative testing methods that enabled at least basic therapy decision making. For this reason, we evaluated rapid testing on the Biocartis Idylla™ platform (Biocartis, Mechelen, Belgium) for four important genes commonly mutated in lung and colorectal cancers, namely EGFR, NRAS, KRAS, and BRAF. Clinical specimens from which the mutation status has previously been determined using Next Generation Sequencing (NGS), were retested to determine whether Idylla™ can offer accurate results. To compare the results, the sensitivity, specificity, positive predictive values (PPV) and negative predictive values (NPV) are calculated for each of the mutation types and then combined to determine the values of the Idylla™ system in total, while setting NGS as the gold-standard basis the assays were compared with. Idylla testing thereby displayed acceptable sensitivity and specificity and delivered reliable results for initial therapy decisions.
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Affiliation(s)
- Tiffany Haiduk
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany
| | - Michael Brockmann
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
| | - Ramona-Liza Tillmann
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
| | - Monika Pieper
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
| | - Jessica Lüsebrink
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
| | - Verena Schildgen
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
| | - Oliver Schildgen
- Kliniken der Stadt Köln, Klinikum der Privaten Universität Witten, Ostmerheimer Str. 200, 51109, Köln, (Cologne), Germany.
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Sharma S, Satapathy A, Aggarwal A, Dewan A, Jain E, Katara R, Kumar V, Pal R, Pandey S, Naidu MM, Kini L, Pradhan D, Mohanty SK. Comparison of epidermal growth factor receptor mutation detection turnaround times and concordance among real-time polymerase chain reaction, high-throughput next-generation sequencing and the Biocartis Idylla™ platforms in non-small cell lung carcinomas. Pathol Res Pract 2021; 220:153394. [PMID: 33706124 DOI: 10.1016/j.prp.2021.153394] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 02/17/2021] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Activating mutations in the tyrosine kinase domain of the epidermal growth factor receptor (EGFR) gene of non-small cell lung carcinomas (NSCLC) can be targeted by the tyrosine kinase inhibitors. A number of molecular diagnostic platforms are used to detect actionable targets in the exon(s) 18, 19, 20, and 21 of the EGFR gene. The Idylla™ system (Biocartis, Mechelen, Belgium) is a relatively novel technique and is unique in integrating both sample processing and real-time polymerase chain reaction (RT-PCR) in a single cartridge. We sought to conduct this study to compare the turnaround time (TAT) and concordance of Idylla™ system with the conventional RT-PCR and next-generation sequencing (NGS) for EGFR mutation detection. METHODS In this retrospective analysis, 38 formalin-fixed, paraffin-embedded NSCLC tissue blocks with known NGS results by Ion Torrent™ S5 NGS platform were retested by the RT-PCR and Idylla™ platforms. RESULTS A total of 15 of 38 (39.4 %) tumors that showed various EGFR mutations by NGS and conventional RT-PCR techniques were subjected to the Idylla™testing. These cases satisfied the specimen adequacy criteria of at least 10 % tumor cells for the testing. The mutations detected by the NGS were also detected by the Idylla™ testing. However, NGS identified additional 3 mutations in 3 cases, involving T709 V (exon 18, n = 1) and V774 M (exon 20, n = 2). The tumors with wild type EGFR on NGS did not have any actionable mutation detected by the Idylla™. Average EGFR testing TAT by Idylla™ was only 7.2 h (4-12 hours), as compared to conventional RT-PCR taking 54 h (31-79 hours) and NGS requiring 10.7 days (7.1-14 days). The actual procedure time by conventional RT-PCR was 24 h, NGS was 6.5 days, and Idylla™ was only 3 h. CONCLUSIONS In summary, the Idylla™EGFR testing is an efficient, rapid, and fairly simple tool that can be used in the routine molecular laboratory with limited expertise and infrastructure and using the lowest amount of tissue material.
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Affiliation(s)
- Shivani Sharma
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Abhishek Satapathy
- Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, Odisha, India
| | - Aditi Aggarwal
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Aditi Dewan
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Ekta Jain
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Rahul Katara
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Vipin Kumar
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Rajan Pal
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Santosh Pandey
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | - Machita M Naidu
- Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, Odisha, India
| | - Lata Kini
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India
| | | | - Sambit K Mohanty
- Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, Haryana, India; Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, Odisha, India.
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Nunnari J, Graziano P, Muscarella LA, Rossi A, Grillo LR, Montrone G, Di Lorenzo A, Bronzini M, Leone A. Rapid EGFR evaluation from used H&E, IHC and FISH diagnostic slides with the Idylla platform. J Clin Pathol 2021; 75:338-344. [PMID: 33597223 DOI: 10.1136/jclinpath-2020-207315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 12/25/2022]
Abstract
AIMS Diagnostic tumour samples are mandatory for morphologic and molecular diagnosis of non-small cell lung cancer (NSCLC) to establish the best therapeutic approach. In the presence of small tumour tissue sample, the pathologist needs to make responsible choices to achieve a correct diagnosis and save material for subsequent molecular evaluations. Nevertheless, in some instances, the diagnostic process can lead to tissue depletion. The automated Idylla epidermal growth factor receptor (EGFR) mutation test has been developed to rapidly process formalin-fixed paraffin-embedded (FFPE) pathologic material, without previous DNA extraction. This study aimed to test whether this platform is suitable for the reuse of H&E, immunohistochemistry (IHC) and fluorescence in situ hybridisation (FISH) diagnostic slides. METHODS A training set of 19 FFPE tissues with known EGFR status was revaluated on H&E slides. Fourteen of them were also tested using IHC and FISH treated specimens. An additional series of 25 H&E, IHC or FISH slides of NSCLC cases tested for EGFR mutation at an external institution was blindly assessed as a validation cohort. RESULTS Combining the two sets, 32 of 32 classical ex19dels and p.L858R were correctly identified. Three uncommon mutations (p.G719X, p.L861Q and ex20ins) were also detected. Four discrepancies were related to rare ex19del/ins not included in the Idylla list of detectable mutations. Two p.T790M variants were missed on one FFPE and two H&E slides but were detected using IHC and FISH sections from the same FFPE blocks. CONCLUSIONS The Idylla EGFR mutation test is highly reliable using differently treated tumour specimens and should be validated in larger studies.
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Affiliation(s)
- Josè Nunnari
- Anatomic Pathology Unit, San Camillo-Forlanini Hospitals, Rome, Italy
| | - Paolo Graziano
- Anatomic Pathology Unit, Scientific Institute for Research and Health Care (IRCCS) Fondazione Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Lucia Anna Muscarella
- Laboratory of Oncology, Scientific Institute for Research and Health Care (IRCCS) Fondazione Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Antonio Rossi
- Oncology Center of Excellence, Therapeutic Science and Strategy Unit, IQVIA, Milan, Italy
| | | | - Giuseppe Montrone
- Anatomic Pathology Unit, San Camillo-Forlanini Hospitals, Rome, Italy
| | - Angela Di Lorenzo
- Anatomic Pathology Unit, San Camillo-Forlanini Hospitals, Rome, Italy
| | - Monica Bronzini
- Anatomic Pathology Unit, San Camillo-Forlanini Hospitals, Rome, Italy
| | - Alvaro Leone
- Anatomic Pathology Unit, San Camillo-Forlanini Hospitals, Rome, Italy
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Grant J, Stanley A, Balbi K, Gerrard G, Bennett P. Performance evaluation of the Biocartis Idylla EGFR Mutation Test using pre-extracted DNA from a cohort of highly characterised mutation positive samples. J Clin Pathol 2021; 75:241-249. [PMID: 33514586 DOI: 10.1136/jclinpath-2020-207338] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/16/2022]
Abstract
AIMS Targeted therapies for non-small cell lung carcinoma (NSCLC) rely on the detection of specific genomic lesions, such as mutations within the epidermal growth factor receptor (EGFR) gene. The Biocartis Idylla platform and single-use EGFR mutation test cartridge is CE-IVD for use with formalin-fixed paraffin embedded (FFPE) tumour material, but can also function off-scope using extracted DNA as input material. This can expand the utility of the platform and potentially conserve valuable tissue. METHODS We sought to evaluate the performance of this system to detect known EGFR mutations using extracted DNA at different input levels. 130 next generation sequencing-characterised NSCLC cases possessing EGFR mutations that were theoretically detectable by the Idylla system were selected. Replicate analyses were performed using the Idylla EGFR test with up to three different DNA input levels (20 ng, 50 ng and 250 ng). RESULTS Considering only variants within the test manufacturer's specified scope, the Idylla EGFR test generated concordant findings for 90.77% of cases at 20 ng DNA input, 98.46% at 50 ng input and 100% at 250 ng input. Analyses with discordant findings all generated control quantification cycle (CQ) values greater than 23. Very low CQ values were associated with EGFR gene amplification. CONCLUSIONS The Idylla EGFR Mutation Test can be used at least as well with pre-extracted DNA than with direct FFPE input. In cases with control CQ >23, reanalysis with an increased DNA input should ideally be undertaken. If this is not possible, the risk of false negative calls may be mitigated by manual review of the quantitative PCR data and/or by reflexing to alternative analysis options.
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Affiliation(s)
- Jack Grant
- Sarah Cannon Molecular Diagnostics, HCA Healthcare UK, London, UK
| | - Anne Stanley
- Sarah Cannon Molecular Diagnostics, HCA Healthcare UK, London, UK
| | - Kevin Balbi
- Sarah Cannon Molecular Diagnostics, HCA Healthcare UK, London, UK
| | - Gareth Gerrard
- Sarah Cannon Molecular Diagnostics, HCA Healthcare UK, London, UK.,Faculty of Medicine, Imperial College London, London, UK
| | - Philip Bennett
- Sarah Cannon Molecular Diagnostics, HCA Healthcare UK, London, UK
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Momeni-Boroujeni A, Salazar P, Zheng T, Mensah N, Rijo I, Dogan S, Yao J, Moung C, Vanderbilt C, Benhamida J, Chang J, Travis W, Rekhtman N, Ladanyi M, Nafa K, Arcila ME. Rapid EGFR Mutation Detection Using the Idylla Platform: Single-Institution Experience of 1200 Cases Analyzed by an In-House Developed Pipeline and Comparison with Concurrent Next-Generation Sequencing Results. J Mol Diagn 2020; 23:310-322. [PMID: 33346146 DOI: 10.1016/j.jmoldx.2020.11.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/13/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
Mutations in the epidermal growth factor receptor (EGFR) are the most common targetable alterations in lung adenocarcinoma. To facilitate rapid testing, the Idylla EGFR assay was incorporated as a screening method before next-generation sequencing (NGS). Validation and experience using an in-house developed analysis pipeline, enhanced with a manual review algorithm is described. Results are compared with corresponding NGS results. In all, 1249 samples were studied. Validation demonstrated 98.57% (69/70) concordance with the reference methods. The limit of detection varied from 2% to 5% variant allele frequency for total EGFR quantitation cycle between 20 and 23. Of the 1179 clinical cases, 23.41% were EGFR-positive by Idylla. Concurrent NGS was successfully performed on 94.9% (799/842) requests. Concordance of Idylla with NGS was 98.62% (788/799) and 98.50% (787/799) using our in-house and Idylla analysis pipelines, respectively. Discordances involved missed mutations by both assays associated with low tumor/low input. Incorporating a manual review algorithm to supplement automated calls improved accuracy from 98.62% to 99.37% and sensitivity from 94.68% to 97.58%. Overall reporting time, from receipt of material to official clinical report, ranged from 1 to 3 days. Therefore, Idylla EGFR testing enables rapid and sensitive screening without compromising subsequent comprehensive NGS, when required. Automated calling, enhanced with a manual review algorithm, reduces false-negative calls associated with low tumor/low input samples.
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Affiliation(s)
| | - Paulo Salazar
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Tao Zheng
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nana Mensah
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ivelise Rijo
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Snjezana Dogan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - JinYuan Yao
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Christine Moung
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Chad Vanderbilt
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jamal Benhamida
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jason Chang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - William Travis
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Natasha Rekhtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Khedoudja Nafa
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Maria E Arcila
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York.
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Brcic L, Kern I. Outsourcing predictive biomarker testing in non-small cell carcinoma: a personal view of pathologists. Transl Lung Cancer Res 2020; 9:2194-2198. [PMID: 33209643 PMCID: PMC7653138 DOI: 10.21037/tlcr-20-297] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Luka Brcic
- Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Izidor Kern
- Cytology and Pathology Laboratory, University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia
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Singh V, Nambirajan A, Malik PS, Thulkar S, Pandey RM, Luthra K, Arava S, Ray R, Mohan A, Jain D. Spectrum of uncommon and compound epidermal growth factor receptor mutations in non-small-cell lung carcinomas with treatment response and outcome analysis: A study from India. Lung Cancer 2020; 149:53-60. [PMID: 32971387 DOI: 10.1016/j.lungcan.2020.07.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/25/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Mutations in the tyrosine kinase domain of the epidermal growth factor receptor gene (EGFR) are key driver alterations in lung adenocarcinomas (ADCAs). Exon 19 deletions (exon19del) and exon 21 L858R (L858R) mutations account for 70-90 % of all such alterations and predict sensitivity to EGFR tyrosine kinase inhibitors (TKIs). However, the predictive value of uncommon and compound EGFR mutations for TKIs has not been clearly established. OBJECTIVE To assess the spectrum of EGFR mutations in non-small-cell lung carcinoma (NSCLC), and to compare the treatment responses and outcomes among single common, single uncommon, and compound mutations. METHOD The study was of combined retrospective (January 2010-December 2015) and prospective (January 2016-February 2020) design spanning 10 years. Tumor samples from TKI-naive NSCLC patients were tested for EGFR mutations by a qPCR-based method. Objective response rates (ORRs) and survival outcomes were analyzed. RESULT In total, 1227 tumor samples were tested. EGFR mutations were detected in 391 samples (31.8 %), and included 79.5 % (311/391) single common (exon19del/L858R), 6.6 % (26/391) single uncommon (non-exon19del/L858R), and 13.8 % (54/391) compound mutations. Exon 20 T790M mutations were most prevalent among uncommon/compound mutations (40/391, 10.2 %). Overall, patients with single uncommon/compound mutations responded poorly to both EGFRTKI (47 % ORR) and chemotherapy (43 % ORR), with significantly shorter time to progression (median 7 months) compared to those with exon19del/L858R mutations (median 14.7 months). Patients with baseline T790M mutations (single/compound) were least responsive to EGFR TKIs (11 % ORR) and chemotherapy (27 % ORR) and showed the shortest progression-free survival compared to other uncommon and compound mutations. CONCLUSION Approximately one fifth of EGFR-mutant patients harbor uncommon and compound mutations. Unlike those with exon19del/L858R, these patients-particularly those with baseline T790M mutations-show significantly inferior response rates to treatment (EGFR TKI or chemotherapy) and early disease progression.
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Affiliation(s)
- Varsha Singh
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Aruna Nambirajan
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhat Singh Malik
- Department of Medical Oncology, Dr B.R. Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjay Thulkar
- Department of Radiology, Dr B.R. Ambedkar Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India
| | - Ravindra Mohan Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Sudheer Arava
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Ruma Ray
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - Anant Mohan
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, New Delhi, India
| | - Deepali Jain
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India.
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Arcila ME, Yang SR, Momeni A, Mata DA, Salazar P, Chan R, Elezovic D, Benayed R, Zehir A, Buonocore DJ, Rekhtman N, Lin O, Ladanyi M, Nafa K. Ultrarapid EGFR Mutation Screening Followed by Comprehensive Next-Generation Sequencing: A Feasible, Informative Approach for Lung Carcinoma Cytology Specimens With a High Success Rate. JTO Clin Res Rep 2020; 1:100077. [PMID: 33511359 PMCID: PMC7839984 DOI: 10.1016/j.jtocrr.2020.100077] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/01/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION For patients with advanced NSCLC, cytologic samples may be the only diagnostic specimen available for molecular profiling. Although both rapid and comprehensive assessment are essential in this setting, an integrated multitest approach remains an important strategy in many laboratories, despite the risks and challenges when working with scant samples. In this study, we describe our experience and high success rate in using a multitest approach, focusing on the clinical validation and incorporation of ultrarapid EGFR testing using the Idylla system followed by comprehensive next-generation sequencing (NGS). METHODS Cytology samples received for routine molecular testing were included in this study. The performance characteristics of the EGFR Idylla assay were assessed; tissue suitability parameters and interpretation criteria to supplement automated mutation calling were established. The assay performance was monitored for 1 year, comparing the results with those of concurrent NGS testing by MSK-IMPACT (primarily) or MSK-AmpliSeq and MSK-Fusion solid panel in a subset of cases. RESULTS Overall, 301 samples were studied; 83 samples were included in validation (60.2% [50 of 83] were positive for EGFR mutations). Concordance with the reference method was 96.4% (80 of 83) of the samples with excellent reproducibility. The limit of detection was variable depending on the total tissue input and the specific mutation tested. Unextracted tissue inputs that maintained total EGFR cycle of quantification at less than 23 allowed all mutations to be detected if present at greater than 5% variant allele frequency. Mutations could be detected at 1% variant allele frequency with total EGFR cycle of quantification of 18. During the clinical implementation phase, 218 NSCLC samples were tested by Idylla (24.3% [53 of 218] were EGFR mutation positive). Concurrent NGS testing was requested on 165 samples and successfully performed on 96.4% (159 of 165) of the samples. The Idylla automated results were concordant with those obtained by NGS in 96.2% (153 of 159) of cases and improved to 98.7% (157 of 159) after incorporation of manual review criteria to supplement automated calling, resulting in a diagnostic sensitivity of 95.6% (95% confidence interval: 84.9%-99.5%). In general, 9% (14 of 159) of the cases tested by NGS had EGFR mutations not covered by the Idylla assay, primarily insertions in exon 19 and 20 and minor mutations cooccurring with canonical sensitizing mutations. CONCLUSIONS Comprehensive molecular testing is feasible and has a high success rate in NSCLC cytology samples when using a multitest approach. Testing with the Idylla system enables rapid and accurate determination of the EGFR status without compromising subsequent NGS testing.
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Affiliation(s)
- Maria E. Arcila
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Soo-Ryum Yang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Amir Momeni
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Douglas A. Mata
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Paulo Salazar
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Roger Chan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Daniela Elezovic
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ryma Benayed
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ahmet Zehir
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Darren J. Buonocore
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Natasha Rekhtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Oscar Lin
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc Ladanyi
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Khedoudja Nafa
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
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Suster DI, Mino-Kenudson M. Molecular Pathology of Primary Non-small Cell Lung Cancer. Arch Med Res 2020; 51:784-798. [PMID: 32873398 DOI: 10.1016/j.arcmed.2020.08.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023]
Abstract
Lung carcinoma is one of the most common human cancers and is estimated to have an incidence of approximately 2 million new cases per year worldwide with a 20% mortality rate. Lung cancer represents one of the leading causes of cancer related death in the world. Of all cancer types to affect the pulmonary system, non-small cell lung carcinoma comprises approximately 80-85% of all tumors. In the past few decades cytogenetic and advanced molecular techniques have helped define the genomic landscape of lung cancer, and in the process, revolutionized the clinical management and treatment of patients with advanced non-small cell lung cancer. The discovery of specific, recurrent genetic abnormalities has led to the development of targeted therapies that have extended the life expectancy of patients who develop carcinoma of the lungs. Patients are now routinely treated with targeted therapies based on identifiable molecular alterations or other predictive biomarkers which has led to a revolution in the field of pulmonary pathology and oncology. Numerous different testing modalities, with various strengths and limitations now exist which complicate diagnostic algorithms, however recently emerging consensus guidelines and recommendations have begun to standardize the way to approach diagnostic testing of lung carcinoma. Herein we provide an overview of the molecular genetic landscape of non-small cell lung carcinoma, with attention to those clinically relevant alterations which drive management, as well as review current recommendations for molecular testing.
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Affiliation(s)
- David Ilan Suster
- Department of Pathology, Rutgers University, New Jersey Medical School, Newark, NJ, USA
| | - Mari Mino-Kenudson
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Malapelle U, Pisapia P, Iaccarino A, Barberis M, Bellevicine C, Brunnström H, de Biase D, De Maglio G, Ericson Lindquist K, Fassan M, Fontanini G, Gruppioni E, Hofman P, Merkelbach-Bruse S, Molina Vila MA, Pujals A, Rapa I, Righi L, Rosell R, Schildgen O, Schildgen V, Schmitt FC, Tallini G, Vander Borght S, Vigliar E, Volante M, Wagener-Ryczek S, Weynand B, Troncone G. Predictive molecular pathology in the time of coronavirus disease (COVID-19) in Europe. J Clin Pathol 2020; 74:jclinpath-2020-206957. [PMID: 32737190 PMCID: PMC7397978 DOI: 10.1136/jclinpath-2020-206957] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 02/05/2023]
Abstract
AIMS Lung cancer predictive biomarker testing is essential to select advanced-stage patients for targeted treatments and should be carried out without delays even during health emergencies, such as the coronavirus (COVID-19) outbreak. METHODS Fifteen molecular laboratories from seven different European countries compared 4 weeks of national lockdown to a corresponding period in 2019, in terms of tissue and/or plasma-based molecular test workload, analytical platforms adopted, number of cases undergoing programmed death-ligand1 (PD-L1) expression assessment and DNA-based molecular tests turnaround time. RESULTS In most laboratories (80.0%), tissue-based molecular test workload was reduced. In 40.0% of laboratories (6/15), the decrease was >25%, and in one, reduction was as high as 80.0%. In this instance, a concomitant increase in liquid biopsy was reported (60.0%). Remarkably, in 33.3% of the laboratories, real-time PCR (RT-PCR)-based methodologies increased, whereas highly multiplexing assays approaches decreased. Most laboratories (88.9%) did not report significant variations in PD-L1 volume testing. CONCLUSIONS The workload of molecular testing for patients with advanced-stage lung cancer during the lockdown showed little variations. Local strategies to overcome health emergency-related issues included the preference for RT-PCR tissue-based testing methodologies and, occasionally, for liquid biopsy.
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Affiliation(s)
- Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Antonino Iaccarino
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Massimo Barberis
- Division of Pathology, European Institute of Oncology IRCCS, Milan, Italy
| | - Claudio Bellevicine
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Hans Brunnström
- Department of Clinical Sciences, Division of Oncology and Pathology, Lund University, Lund, Sweden
| | - Dario de Biase
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | | | - Kajsa Ericson Lindquist
- Department of Clinical Sciences, Division of Oncology and Pathology, Lund University, Lund, Sweden
| | - Matteo Fassan
- Surgical Pathology Unit, Department of Medicine, University of Padua, Padua, Italy
| | - Gabriella Fontanini
- Department of Surgical, Medical, and Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Elisa Gruppioni
- Department of Pathology, University of Bologna Medical Center, Bologna, Italy
| | | | | | | | - Anaïs Pujals
- Department of Pathology, CHU Henri Mondor, Creteil, France
| | - Ida Rapa
- Pathology Unit, Department of Oncology, San Luigi Gonzaga Hospital, Orbassano, Italy
| | - Luisella Righi
- Pathology Unit, Department of Oncology, University of Turin, Turin, Italy
| | - Rafael Rosell
- Cancer Biology and Precision Medicine Program, Catalan Institute of Oncology; Germans Trias i Pujol Health Sciences Institute and Hospital Badalona, Barcelona, Spain
| | - Oliver Schildgen
- Institute of Pathology, Hospital of the Private University Witten/Herdecke, Cologne, Germany
| | - Verena Schildgen
- Institute of Pathology, Hospital of the Private University Witten/Herdecke, Cologne, Germany
| | | | - Giovanni Tallini
- Department of Pathology, University of Bologna Medical Center, Bologna, Italy
| | | | - Elena Vigliar
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Marco Volante
- Pathology Unit, Department of Oncology, University of Turin, Turin, Italy
| | | | - Birgit Weynand
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
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Pécriaux A, Favre L, Calderaro J, Charpy C, Derman J, Pujals A. Detection of microsatellite instability in a panel of solid tumours with the Idylla MSI Test using extracted DNA. J Clin Pathol 2020; 74:36-42. [PMID: 32513848 DOI: 10.1136/jclinpath-2020-206581] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022]
Abstract
AIM During the last few years, determination of microstatellite instability (MSI) status has become a routine part of clinical practice, essentially to detect Lynch syndrome. Recently, MSI testing has increased with the development of immunotherapy and has expanded to a large panel of solid tumours. The aim of our work was to evaluate a fully automated system developed by Biocartis, the Idylla MSI Test, which performs an MSI analysis within 150 min. METHODS A comparison between pentaplex PCR, immunohistochemistry and Idylla MSI Test was performed in 53 colorectal carcinoma samples, 7 small intestine adenocarcinomas, 15 duodenal and pancreatic adenocarcinomas, 16 gastric tumours, 15 endometrial adenocarcinomas, 5 ovarian carcinomas and 4 cases of urinary tract tumours using extracted DNA. Limit-of-detection (LOD) experiment was also done using a commercial DNA known to harbour MSI phenotype. RESULTS The overall sensitivity was 94% and the overall specificity was 100%. Two invalid and three false-negative results were observed. Our experiments showed that the amount of DNA loaded into the cartridge was decisive and should be superior to 25 ng. LOD comprised between 4% and 8%. CONCLUSION Overall, we have demonstrated that the Idylla MSI Test is a rapid and valid option to detect MSI phenotype which can be used in a large panel of solid tumours.
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Affiliation(s)
| | - Loetitia Favre
- Department of Pathology, CHU Henri Mondor, Créteil, France.,Université Paris-Est Créteil Val de Marne Faculté de médecine, Creteil, France
| | - Julien Calderaro
- Department of Pathology, CHU Henri Mondor, Créteil, France.,Université Paris-Est Créteil Val de Marne Faculté de médecine, Creteil, France
| | - Cécile Charpy
- Department of Pathology, CHU Henri Mondor, Créteil, France
| | | | - Anaïs Pujals
- Department of Pathology, CHU Henri Mondor, Créteil, France .,Université Paris-Est Créteil Val de Marne Faculté de médecine, Creteil, France
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Lee E, Jones V, Topkas E, Harraway J. Reduced sensitivity for EGFR T790M mutations using the Idylla EGFR Mutation Test. J Clin Pathol 2020; 74:43-47. [PMID: 32467321 DOI: 10.1136/jclinpath-2020-206527] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/11/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022]
Abstract
AIMS Osimertinib is a third-generation EGFR (epidermal growth factor receptor) tyrosine kinase inhibitor that is effective in non-small cell lung cancer (NSCLC) harbouring the EGFR T790M mutation. The Idylla EGFR Mutation Test is a rapid cartridge-based method for detecting T790M and other EGFR mutations. However, false negative T790M results have been reported, and the sensitivity of the assay for this mutation is uncertain. METHODS Eighty NSCLC samples were tested by both Idylla and a next-generation sequencing (NGS) assay; 46 were from patients at disease progression, and 24 of these had known T790M mutations. Droplet digital PCR (ddPCR) was used to confirm NGS findings in samples with the T790M mutation. RESULTS Of 19 samples with T790M variant allele frequencies (VAF) higher than the stated 5% limit of detection, 14 were detected by Idylla (sensitivity 74%, 95% CI 49% to 90%). Where sufficient sample remained, ddPCR was consistent with NGS findings in all samples. False negative T790M results were associated with higher EGFR control Cq values (median 22.8 vs 19.8), presence of the EGFR Q787Q polymorphism in cis (80% vs 44%) and presence of an invalid T790M amplification curve. An EGFR exon 19 indel with VAF >5% was also not detected by the Idylla assay in two samples. CONCLUSIONS The Idylla EGFR Mutation Test has reduced sensitivity for the T790M mutation compared with NGS and ddPCR methods. The presence of an invalid T790M amplification curve may indicate a possible false negative result that warrants further testing by an orthogonal method.
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Affiliation(s)
- Eric Lee
- Molecular Pathology, Sullivan Nicolaides Pathology, Brisbane, QLD, Australia
| | - Victoria Jones
- Molecular Pathology, Sullivan Nicolaides Pathology, Brisbane, QLD, Australia
| | - Eleni Topkas
- Molecular Pathology, Sullivan Nicolaides Pathology, Brisbane, QLD, Australia
| | - James Harraway
- Molecular Pathology, Sullivan Nicolaides Pathology, Brisbane, QLD, Australia
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Targeted Assessment of the EGFR Status as Reflex Testing in Treatment-Naive Non-Squamous Cell Lung Carcinoma Patients: A Single Laboratory Experience (LPCE, Nice, France). Cancers (Basel) 2020; 12:cancers12040955. [PMID: 32294880 PMCID: PMC7225982 DOI: 10.3390/cancers12040955] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/11/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Background: Assessment of actionable EGFR mutations is mandatory for treatment-naïve advanced or metastatic non-squamous lung carcinoma (NSLC), but the results need to be obtained in less than 10 working days. For rapid EGFR testing, an EGFR-specific polymerase chain reaction (PCR) assay is an alternative and simple approach compared to next generation sequencing (NGS). Here, we describe how a rapid EGFR-specific PCR assay can be implemented in a single laboratory center (LPCE, Nice, France) as reflex testing in treatment-naïve NSLC. Methods: A total of 901 biopsies from NSLC with more than 10% of tumor cells were prospectively and consecutively evaluated for EGFR mutation status between November 2017 and December 2019 using the Idylla system (Biocartis NV, Mechelen, Belgium). NGS was performed for nonsmokers with NSLC wild type for EGFR, ALK, ROS1, and BRAF and with less than 50% PD-L1 positive cells using the Hotspot panel (Thermo Fisher Scientific, Waltham, MA, USA). Results: Results were obtained from 889/901 (97%) biopsies with detection of EGFR mutations in 114/889 (13%) cases using the Idylla system. Among the 562 EGFR wild type tumors identified with Idylla, NGS detected one actionable and one nonactionable EGFR mutation. Conclusions: Rapid and targeted assessment of EGFR mutations in treatment-naïve NSLC can be implemented in routine clinical practice. However, it is mandatory to integrate this approach into a molecular algorithm that allows evaluation of potentially actionable genomic alterations other than EGFR mutations.
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Rapid detection of EGFR mutations in decalcified lung cancer bone metastasis. J Bone Oncol 2020; 21:100277. [PMID: 31956476 PMCID: PMC6962695 DOI: 10.1016/j.jbo.2020.100277] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/09/2020] [Accepted: 01/09/2020] [Indexed: 01/01/2023] Open
Abstract
Molecular status determination following decalcification procedures is challenging. The Idylla™ EGFR assay demonstrates good performance on decalcified bone samples. The choice of EGFR assay should be adapted to patient and sample specificities.
Detection of molecular alterations in lung cancer bone metastasis (LCBM) is particularly difficult when decalcification procedure is needed. The Idylla™ real-time (RT)-PCR is compared to the routine method used in our laboratory, which combines next generation and Sanger sequencing, for the detection of EGFR mutations in LCBM. LCBM subjected to EDTA or formic acid decalcification were analysed for EGFR mutational status using two methods: first, the Ion Torrent Ampliseq next generation sequencing (NGS) assay +/- Sanger sequencing was used prospectively; then, the fully-automated, RT-PCR based molecular testing system Idylla™ EGFR Mutation Test was applied retrospectively. Out of the 34 LCBM assayed, 14 (41.2%) were unsuitable for NGS analysis and five remained unsuitable after additional Sanger EGFR sequencing (5/34, 14.7%). Using Idylla™, valid results were observed for 33/34 samples (97.1%). The concordance between the NGS +/- Sanger sequencing method and the RT-PCR method was 89.7% (26/29), one false positive EGFR S768I mutation and two false negative results were observed using Idylla™; one of these false negative cases was diagnosed by Sanger sequencing with a rare exon 19 EGFR mutation not covered by the Idylla™ EGFR Mutation Test design. Detection of EGFR mutations in decalcified LCBM is challenging using NGS, more than half of samples showing invalid results. Alternative methods should thus be preferred to spare clinical samples and decrease delay. The Idylla™ EGFR Mutation Test shows a good performance on decalcified bone samples and could be used as a first step. In case of negative results, a sequencing approach is mandatory to check the presence of rare EGFR mutations sensitive to EGFR tyrosine kinase inhibitors.
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De Luca C, Sgariglia R, Nacchio M, Pisapia P, Migliatico I, Clery E, Gragnano G, Campione S, Vigliar E, Malapelle U, De Dominicis G, Bellevicine C, Troncone G. Rapid On-site Molecular Evaluation in thyroid cytopathology: A same-day cytological and molecular diagnosis. Diagn Cytopathol 2020; 48:300-307. [PMID: 31904908 DOI: 10.1002/dc.24378] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 12/27/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Thyroid fine-needle aspirates (FNAs) with undetermined morphology can be outsourced to centralized laboratories for comprehensive molecular profiling. When a local, rapid screening rules out easily detectable BRAF and NRAS mutations outsourcing is minimized, leading to cost savings. The fully automated Idylla technology, that does not require trained staff, is an emerging option. However, Idylla platform has only been validated to process formalin fixed paraffin embedded (FFPE) sections. Here we investigate whether also the FNA needle rinse could be genotyped by the same cytopathologist who performs the FNA, a procedure that can be termed rapid on site molecular evaluation (ROME). METHODS To validate this approach, the Idylla BRAF and NRAS Test was performed on the rinses from 25 simulated (bench-top) FNAs, in a first part of the study. Genotyping data were compared with those obtained on matched histological FFPE blocks. The second part of the study was carried out on 25 prospectively collected routine FNAs to assess the performance of the Idylla BRAF and NRAS assay against a gold standard real time polymerase chain reaction method. RESULTS Idylla NRAS-BRAF Mutation Test was performed on needle rinse as well as histological FFPE blocks. A sensitivity of 88.9%, a specificity of 100.0% were obtained comparing the Idylla NRAS-BRAF Mutation Test on needle rinse to the reference method. CONCLUSIONS The FNA needle rinse can be directly genotyped. This obviates the need of cell block preparation, making possible a rapid combined morphological and molecular evaluation. Since DNA extraction is no longer necessary, the cytopathologist can perform ROME him/herself.
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Affiliation(s)
- Caterina De Luca
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Roberta Sgariglia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Mariantonia Nacchio
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Ilaria Migliatico
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Eduardo Clery
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Gianluca Gragnano
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Severo Campione
- Department of Pathology, A.O.R.N. A. Cardarelli, Naples, Italy
| | - Elena Vigliar
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | | | - Claudio Bellevicine
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Giancarlo Troncone
- Department of Public Health, University of Naples Federico II, Naples, Italy
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