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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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Boppudi SM, Scheil-Bertram S, Faust E, Annamneedi A, Fisseler-Eckhoff A. Assessing and Evaluating the Scope and Constraints of Idylla Molecular Assays by Using Different Source Materials in Routine Diagnostic Settings. Int J Mol Sci 2022; 23:ijms232012515. [PMID: 36293374 PMCID: PMC9604085 DOI: 10.3390/ijms232012515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
For cancer treatment, diagnostics concerning tumor type and determination of molecular markers in short TAT is critical. The fully automated, real-time PCR-based molecular diagnostic Idylla assays are well established in many laboratories for qualitative detection, short TAT and routine screening of clinically relevant oncogenic mutations. According to the manufacturer, all IVD assays are recommended for use only with FFPE tissue samples of 5–10 µM dissections with at least 10% tumor content. In this study, we tested the performance and accuracy of the IVD assays along with the gene fusion assay (RUO) with different tissue/source materials like isolated DNA/RNA, cryomaterial, etc. The study also included testing archival FFPE tissue sections dating back from 20 years and a performance check for different pan-cancer samples individually. All the assays tested with FFPE sections and gDNA/RNA input showed above 96% accuracy and sensitivity, individually with 100% specificity. The Idylla assays also performed exceptionally well on the archival FFPE tissues, and the use of assays for other solid tumors was also remarkable. The performance test and accuracy of Idylla assays showed high efficiency with certain limitations. For the use of Idylla assays, both qualitative and quantitative applicability of different tumor source materials could produce efficient results in different diagnostic settings within a short TAT.
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Affiliation(s)
- Sanga Mitra Boppudi
- Helios Dr. Horst Schmidt Kliniken Wiesbaden, Institute for Pathology and Cytology, 65199 Wiesbaden, Germany
- Gemeinschaftspraxis für Pathologie, 65199 Wiesbaden, Germany
- Correspondence: (S.M.B.); (A.F.-E.)
| | - Stefanie Scheil-Bertram
- Helios Dr. Horst Schmidt Kliniken Wiesbaden, Institute for Pathology and Cytology, 65199 Wiesbaden, Germany
| | - Elisabeth Faust
- Helios Dr. Horst Schmidt Kliniken Wiesbaden, Institute for Pathology and Cytology, 65199 Wiesbaden, Germany
| | - Anil Annamneedi
- Team Biology of GPCR Signaling Systems (BIOS), CNRS, IFCE, INRAE, Université de Tours, Physiologie de la Reproduction et des Comportements (PRC), 37380 Nouzilly, France
- LE STUDIUM Loire Valley Institute for Advanced Studies, 45000 Orléans, France
| | - Annette Fisseler-Eckhoff
- Helios Dr. Horst Schmidt Kliniken Wiesbaden, Institute for Pathology and Cytology, 65199 Wiesbaden, Germany
- Gemeinschaftspraxis für Pathologie, 65199 Wiesbaden, Germany
- Correspondence: (S.M.B.); (A.F.-E.)
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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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