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Volumn 22, Issue 23, 2016, Pages 5772-5782

Detection of therapeutically targetable driver and resistance mutations in lung cancer patients by next-generation sequencing of cell-free circulating tumor DNA

Author keywords

[No Author keywords available]

Indexed keywords

CIRCULATING TUMOR DNA; DNA; EPIDERMAL GROWTH FACTOR RECEPTOR; UNCLASSIFIED DRUG; TUMOR MARKER;

EID: 85006312500     PISSN: 10780432     EISSN: 15573265     Source Type: Journal    
DOI: 10.1158/1078-0432.CCR-16-1231     Document Type: Article
Times cited : (271)

References (50)
  • 2
    • 84921892043 scopus 로고    scopus 로고
    • Afatinib versus cisplatin-based chemotherapy for EGFR mutation-positive lung adenocarcinoma (LUX-Lung 3 and LUX-Lung 6): Analysis of overall survival data from two randomised, phase 3 trials
    • Yang JC, Wu YL, Schuler M, Sebastian M, Popat S, Yamamoto N, et al. Afatinib versus cisplatin-based chemotherapy for EGFR mutation-positive lung adenocarcinoma (LUX-Lung 3 and LUX-Lung 6): analysis of overall survival data from two randomised, phase 3 trials. Lancet Oncol 2015; 16:141-51.
    • (2015) Lancet Oncol , vol.16 , pp. 141-151
    • Yang, J.C.1    Wu, Y.L.2    Schuler, M.3    Sebastian, M.4    Popat, S.5    Yamamoto, N.6
  • 4
    • 84931340760 scopus 로고    scopus 로고
    • Targeted therapy for non-small cell lung cancer: Current standards and the promise of the future
    • Chan BA, Hughes BG. Targeted therapy for non-small cell lung cancer: current standards and the promise of the future. Transl Lung Cancer Res 2015;4:36-54.
    • (2015) Transl Lung Cancer Res , vol.4 , pp. 36-54
    • Chan, B.A.1    Hughes, B.G.2
  • 5
    • 69949186250 scopus 로고    scopus 로고
    • Screening for epidermal growth factor receptor mutations in lung cancer
    • Rosell R, Moran T, Queralt C, Porta R, Cardenal F, Camps C, et al. Screening for epidermal growth factor receptor mutations in lung cancer. N Engl J Med 2009;361:958-67.
    • (2009) N Engl J Med , vol.361 , pp. 958-967
    • Rosell, R.1    Moran, T.2    Queralt, C.3    Porta, R.4    Cardenal, F.5    Camps, C.6
  • 6
    • 84938287765 scopus 로고    scopus 로고
    • Updated frequency of EGFR and kras mutations in non-small-cell lung cancer in Latin america: The Latin-American consortium for the investigation of lung cancer (clicap
    • Arrieta O, Cardona AF, Martin C, Mas-Lopez L, Corrales-Rodriguez L, Bramuglia G, et al. Updated frequency of EGFR and KRAS mutations in non-small-cell lung cancer in Latin America: the Latin-American Consortium for the Investigation of Lung Cancer (CLICaP). J Thorac Oncol 2015;10:838-43.
    • (2015) J Thorac Oncol , vol.10 , pp. 838-843
    • Arrieta, O.1    Cardona, A.F.2    Martin, C.3    Mas-Lopez, L.4    Corrales-Rodriguez, L.5    Bramuglia, G.6
  • 8
    • 84884736973 scopus 로고    scopus 로고
    • Phase III study of afatinib or cisplatin plus pemetrexed in patients with metastatic lung adenocarcinoma with EGFR mutations
    • Sequist LV, Yang JC, Yamamoto N, O'Byrne K, Hirsh V, Mok T, et al. Phase III study of afatinib or cisplatin plus pemetrexed in patients with metastatic lung adenocarcinoma with EGFR mutations. J Clin Oncol 2013;31:3327-34.
    • (2013) J Clin Oncol , vol.31 , pp. 3327-3334
    • Sequist, L.V.1    Yang, J.C.2    Yamamoto, N.3    O'Byrne, K.4    Hirsh, V.5    Mok, T.6
  • 9
    • 84905190188 scopus 로고    scopus 로고
    • ALK inhibitors in non-small cell lung cancer: Crizotinib and beyond
    • Awad MM, Shaw AT. ALK inhibitors in non-small cell lung cancer: crizotinib and beyond. Clin Adv Hematol Oncol 2014;12:429-39.
    • (2014) Clin Adv Hematol Oncol , vol.12 , pp. 429-439
    • Awad, M.M.1    Shaw, A.T.2
  • 10
    • 84904694305 scopus 로고    scopus 로고
    • Drug resistance to molecular targeted therapy and its consequences for treatment decisions in non-small-cell lung cancer
    • Spaans JN, Goss GD. Drug resistance to molecular targeted therapy and its consequences for treatment decisions in non-small-cell lung cancer. Front Oncol 2014;4:190.
    • (2014) Front Oncol , vol.4 , pp. 190
    • Spaans, J.N.1    Goss, G.D.2
  • 11
    • 77956268839 scopus 로고    scopus 로고
    • Understanding resistance to EGFR inhibitors-impact on future treatment strategies
    • Wheeler DL, Dunn EF, Harari PM. Understanding resistance to EGFR inhibitors-impact on future treatment strategies. Nat Rev Clin Oncol 2010;7:493-507.
    • (2010) Nat Rev Clin Oncol , vol.7 , pp. 493-507
    • Wheeler, D.L.1    Dunn, E.F.2    Harari, P.M.3
  • 12
    • 84938887328 scopus 로고    scopus 로고
    • Rociletinib in EGFR-mutated non-small-cell lung cancer
    • Sequist LV, Rolfe L, Allen AR. Rociletinib in EGFR-mutated non-small-cell lung cancer. N Engl J Med 2015;373:578-9.
    • (2015) N Engl J Med , vol.373 , pp. 578-579
    • Sequist, L.V.1    Rolfe, L.2    Allen, A.R.3
  • 13
    • 84904898065 scopus 로고    scopus 로고
    • AZD9291, an irreversible EGFR TKI, overcomes T790M-mediated resistance to EGFR inhibitors in lung cancer
    • Cross DA, Ashton SE, Ghiorghiu S, Eberlein C, Nebhan CA, Spitzler PJ, et al. AZD9291, an irreversible EGFR TKI, overcomes T790M-mediated resistance to EGFR inhibitors in lung cancer. Cancer Discov 2014;4: 1046-61.
    • (2014) Cancer Discov , vol.4 , pp. 1046-1061
    • Cross, D.A.1    Ashton, S.E.2    Ghiorghiu, S.3    Eberlein, C.4    Nebhan, C.A.5    Spitzler, P.J.6
  • 15
    • 84938274454 scopus 로고    scopus 로고
    • Multi-institutional oncogenic driver mutation analysis in lung adenocarcinoma: The lung cancer mutation consortium experience
    • Sholl LM, Aisner DL, Varella-Garcia M, Berry LD, Dias-Santagata D, Wistuba II, et al. Multi-institutional oncogenic driver mutation analysis in lung adenocarcinoma: the lung cancer mutation consortium experience. J Thorac Oncol 2015;10:768-77.
    • (2015) J Thorac Oncol , vol.10 , pp. 768-777
    • Sholl, L.M.1    Aisner, D.L.2    Varella-Garcia, M.3    Berry, L.D.4    Dias-Santagata, D.5    Wistuba, I.I.6
  • 17
    • 84891354380 scopus 로고    scopus 로고
    • Reproducible copy number variation patterns among single circulating tumor cells of lung cancer patients
    • Ni X, Zhuo M, Su Z, Duan J, Gao Y, Wang Z, et al. Reproducible copy number variation patterns among single circulating tumor cells of lung cancer patients. Proc Natl Acad Sci U S A 2013;110:21083-8.
    • (2013) Proc Natl Acad Sci U S A , vol.110 , pp. 21083-21088
    • Ni, X.1    Zhuo, M.2    Su, Z.3    Duan, J.4    Gao, Y.5    Wang, Z.6
  • 18
    • 0018830636 scopus 로고
    • Glucocorticoid-induced thymocyte apoptosis is associated with endogenous endonuclease activation
    • Wyllie AH. Glucocorticoid-induced thymocyte apoptosis is associated with endogenous endonuclease activation. Nature 1980;284:555-6.
    • (1980) Nature , vol.284 , pp. 555-556
    • Wyllie, A.H.1
  • 19
    • 84935857045 scopus 로고    scopus 로고
    • High-resolution characterization of sequence signatures due to non-random cleavage of cell-free DNA
    • Chandrananda D, Thorne NP, Bahlo M. High-resolution characterization of sequence signatures due to non-random cleavage of cell-free DNA. BMC Med Genomics 2015;8:29.
    • (2015) BMC Med Genomics , vol.8 , pp. 29
    • Chandrananda, D.1    Thorne, N.P.2    Bahlo, M.3
  • 20
    • 84903218109 scopus 로고    scopus 로고
    • An ultrasensitive method for quantitating circulating tumor DNA with broad patient coverage
    • Newman AM, Bratman SV, To J, Wynne JF, Eclov NC, Modlin LA, et al. An ultrasensitive method for quantitating circulating tumor DNA with broad patient coverage. Nat Med 2014;20:548-54.
    • (2014) Nat Med , vol.20 , pp. 548-554
    • Newman, A.M.1    Bratman, S.V.2    To, J.3    Wynne, J.F.4    Eclov, N.C.5    Modlin, L.A.6
  • 21
    • 84863000299 scopus 로고    scopus 로고
    • The molecular evolution of acquired resistance to targeted EGFR blockade in colorectal cancers
    • Diaz LA Jr, Williams RT, Wu J, Kinde I, Hecht JR, Berlin J, et al. The molecular evolution of acquired resistance to targeted EGFR blockade in colorectal cancers. Nature 2012;486:537-40.
    • (2012) Nature , vol.486 , pp. 537-540
    • Diaz, L.A.1    Williams, R.T.2    Wu, J.3    Kinde, I.4    Hecht, J.R.5    Berlin, J.6
  • 23
    • 84936132730 scopus 로고    scopus 로고
    • Noninvasive diagnosis of actionable mutations by deep sequencing of circulating free DNA in lung cancer from never-smokers: A proof-ofconcept study from BioCAST/IFCT-1002
    • Couraud S, Vaca-Paniagua F, Villar S, Oliver J, Schuster T, Blanche H, et al. Noninvasive diagnosis of actionable mutations by deep sequencing of circulating free DNA in lung cancer from never-smokers: a proof-ofconcept study from BioCAST/IFCT-1002. Clin Cancer Res 2014;20: 4613-24.
    • (2014) Clin Cancer Res , vol.20 , pp. 4613-4624
    • Couraud, S.1    Vaca-Paniagua, F.2    Villar, S.3    Oliver, J.4    Schuster, T.5    Blanche, H.6
  • 24
    • 84896539307 scopus 로고    scopus 로고
    • Noninvasive detection of response and resistance in EGFR-mutant lung cancer using quantitative next-generation genotyping of cell-free plasma DNA
    • Oxnard GR, Paweletz CP, Kuang Y, Mach SL, O'Connell A, Messineo MM, et al. Noninvasive detection of response and resistance in EGFR-mutant lung cancer using quantitative next-generation genotyping of cell-free plasma DNA. Clin Cancer Res 2014;20: 1698-705.
    • (2014) Clin Cancer Res , vol.20 , pp. 1698-1705
    • Oxnard, G.R.1    Paweletz, C.P.2    Kuang, Y.3    Mach, S.L.4    O'Connell, A.5    Messineo, M.M.6
  • 25
    • 84859813987 scopus 로고    scopus 로고
    • Evaluation of circulating tumor cells and circulating tumor DNA in nonsmall cell lung cancer: Association with clinical endpoints in a phase II clinical trial of pertuzumab and erlotinib
    • Punnoose EA, Atwal S, Liu W, Raja R, Fine BM, Hughes BG, et al. Evaluation of circulating tumor cells and circulating tumor DNA in nonsmall cell lung cancer: association with clinical endpoints in a phase II clinical trial of pertuzumab and erlotinib. Clin Cancer Res 2012;18: 2391-401.
    • (2012) Clin Cancer Res , vol.18 , pp. 2391-2401
    • Punnoose, E.A.1    Atwal, S.2    Liu, W.3    Raja, R.4    Fine, B.M.5    Hughes, B.G.6
  • 26
    • 65249127504 scopus 로고    scopus 로고
    • Noninvasive detection of EGFR T790M in gefitinib or erlotinib resistant non-small cell lung cancer
    • Kuang Y, Rogers A, Yeap BY, Wang L, Makrigiorgos M, Vetrand K, et al. Noninvasive detection of EGFR T790M in gefitinib or erlotinib resistant non-small cell lung cancer. Clin Cancer Res 2009;15:2630-6.
    • (2009) Clin Cancer Res , vol.15 , pp. 2630-2636
    • Kuang, Y.1    Rogers, A.2    Yeap, B.Y.3    Wang, L.4    Makrigiorgos, M.5    Vetrand, K.6
  • 28
    • 84942521554 scopus 로고    scopus 로고
    • Broad, hybrid capture-based next-generation sequencing identifies actionable genomic alterations in lung adenocarcinomas otherwise negative for such alterations by other genomic testing approaches
    • Drilon A, Wang L, Arcila ME, Balasubramanian S, Greenbowe JR, Ross JS, et al. Broad, hybrid capture-based next-generation sequencing identifies actionable genomic alterations in lung adenocarcinomas otherwise negative for such alterations by other genomic testing approaches. Clin Cancer Res 2015;21:3631-9.
    • (2015) Clin Cancer Res , vol.21 , pp. 3631-3639
    • Drilon, A.1    Wang, L.2    Arcila, M.E.3    Balasubramanian, S.4    Greenbowe, J.R.5    Ross, J.S.6
  • 29
    • 84949009842 scopus 로고    scopus 로고
    • Analytical and clinical validation of a digital sequencing panel for quantitative, highly accurate evaluation of cell-free circulating tumor DNA
    • Lanman RB, Mortimer SA, Zill OA, Sebisanovic D, Lopez R, Blau S, et al. Analytical and clinical validation of a digital sequencing panel for quantitative, highly accurate evaluation of cell-free circulating tumor DNA. PLoS One 2015;10:e0140712.
    • (2015) PLoS One , vol.10 , pp. e0140712
    • Lanman, R.B.1    Mortimer, S.A.2    Zill, O.A.3    Sebisanovic, D.4    Lopez, R.5    Blau, S.6
  • 30
    • 84961636991 scopus 로고    scopus 로고
    • Detection rate of actionable mutations in diverse cancers using a biopsy-free (blood) circulating tumor cell DNA assay
    • Schwaederle M, Husain H, Fanta PT, Piccioni DE, Kesari S, Schwab RB, et al. Detection rate of actionable mutations in diverse cancers using a biopsy-free (blood) circulating tumor cell DNA assay. Oncotarget 2016; 7:9707-17.
    • (2016) Oncotarget , vol.7 , pp. 9707-9717
    • Schwaederle, M.1    Husain, H.2    Fanta, P.T.3    Piccioni, D.E.4    Kesari, S.5    Schwab, R.B.6
  • 32
    • 84971223669 scopus 로고    scopus 로고
    • Building a robust tumor profiling program: Synergy between next-generation sequencing and targeted single-gene testing
    • Hiemenz MC, Kadauke S, Lieberman DB, Roth DB, Zhao J, Watt CD, et al. Building a robust tumor profiling program: synergy between next-generation sequencing and targeted single-gene testing. PLoS One 2016;11: e0152851.
    • (2016) PLoS One , vol.11 , pp. e0152851
    • Hiemenz, M.C.1    Kadauke, S.2    Lieberman, D.B.3    Roth, D.B.4    Zhao, J.5    Watt, C.D.6
  • 33
    • 84893840600 scopus 로고    scopus 로고
    • Understanding the limitations of next generation sequencing informatics, an approach to clinical pipeline validation using artificial data sets
    • Daber R, Sukhadia S, Morrissette JJ. Understanding the limitations of next generation sequencing informatics, an approach to clinical pipeline validation using artificial data sets. Cancer Genet 2013;206:441-8.
    • (2013) Cancer Genet , vol.206 , pp. 441-448
    • Daber, R.1    Sukhadia, S.2    Morrissette, J.J.3
  • 35
    • 84948139289 scopus 로고    scopus 로고
    • Known and putative mechanisms of resistance to EGFR targeted therapies in NSCLC patients with EGFR mutations-a review
    • Stewart EL, Tan SZ, Liu G, Tsao MS. Known and putative mechanisms of resistance to EGFR targeted therapies in NSCLC patients with EGFR mutations-a review. Transl Lung Cancer Res 2015;4:67-81.
    • (2015) Transl Lung Cancer Res , vol.4 , pp. 67-81
    • Stewart, E.L.1    Tan, S.Z.2    Liu, G.3    Tsao, M.S.4
  • 36
    • 84962606011 scopus 로고    scopus 로고
    • HER2 amplification and HER2 mutation are distinct molecular targets in lung cancers
    • Li BT, Ross DS, Aisner DL, Chaft JE, Hsu M, Kako SL, et al. HER2 amplification and HER2 mutation are distinct molecular targets in lung cancers. J Thorac Oncol 2016;11:414-9.
    • (2016) J Thorac Oncol , vol.11 , pp. 414-419
    • Li, B.T.1    Ross, D.S.2    Aisner, D.L.3    Chaft, J.E.4    Hsu, M.5    Kako, S.L.6
  • 37
    • 70349464846 scopus 로고    scopus 로고
    • Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors in non-small-cell lung cancers dependent on the epidermal growth factor receptor pathway
    • Nguyen KS, Kobayashi S, Costa DB. Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors in non-small-cell lung cancers dependent on the epidermal growth factor receptor pathway. Clin Lung Cancer 2009;10:281-9.
    • (2009) Clin Lung Cancer , vol.10 , pp. 281-289
    • Nguyen, K.S.1    Kobayashi, S.2    Costa, D.B.3
  • 38
    • 15744372810 scopus 로고    scopus 로고
    • KRAS mutations and primary resistance of lung adenocarcinomas to gefitinib or erlotinib
    • Pao W, Wang TY, Riely GJ, Miller VA, Pan Q, Ladanyi M, et al. KRAS mutations and primary resistance of lung adenocarcinomas to gefitinib or erlotinib. PLoS Med 2005;2:e17.
    • (2005) PLoS Med , vol.2 , pp. e17
    • Pao, W.1    Wang, T.Y.2    Riely, G.J.3    Miller, V.A.4    Pan, Q.5    Ladanyi, M.6
  • 39
    • 84872081114 scopus 로고    scopus 로고
    • Association of KRAS and EGFR mutations with survival in patients with advanced lung adenocarcinomas
    • Johnson ML, Sima CS, Chaft J, Paik PK, Pao W, Kris MG, et al. Association of KRAS and EGFR mutations with survival in patients with advanced lung adenocarcinomas. Cancer 2013;119:356-62.
    • (2013) Cancer , vol.119 , pp. 356-362
    • Johnson, M.L.1    Sima, C.S.2    Chaft, J.3    Paik, P.K.4    Pao, W.5    Kris, M.G.6
  • 40
    • 84942521073 scopus 로고    scopus 로고
    • Early prediction of response to tyrosine kinase inhibitors by quantification of EGFR mutations in plasma of NSCLC patients
    • Marchetti A, Palma JF, Felicioni L, De Pas TM, Chiari R, Del Grammastro M, et al. Early prediction of response to tyrosine kinase inhibitors by quantification of EGFR mutations in plasma of NSCLC patients. J Thorac Oncol 2015;10:1437-43.
    • (2015) J Thorac Oncol , vol.10 , pp. 1437-1443
    • Marchetti, A.1    Palma, J.F.2    Felicioni, L.3    De Pas, T.M.4    Chiari, R.5    Del Grammastro, M.6
  • 42
    • 84881476503 scopus 로고    scopus 로고
    • High intratumor genetic heterogeneity is related to worse outcome in patients with head and neck squamous cell carcinoma
    • Mroz EA, Tward AD, Pickering CR, Myers JN, Ferris RL, Rocco JW. High intratumor genetic heterogeneity is related to worse outcome in patients with head and neck squamous cell carcinoma. Cancer 2013;119:3034-42.
    • (2013) Cancer , vol.119 , pp. 3034-3042
    • Mroz, E.A.1    Tward, A.D.2    Pickering, C.R.3    Myers, J.N.4    Ferris, R.L.5    Rocco, J.W.6
  • 43
    • 84930505204 scopus 로고    scopus 로고
    • Pharmacokinetic tumor heterogeneity as a prognostic biomarker for classifying breast cancer recurrence risk
    • Mahrooghy M, Ashraf AB, Daye D, McDonald ES, Rosen M, Mies C, et al. Pharmacokinetic tumor heterogeneity as a prognostic biomarker for classifying breast cancer recurrence risk. IEEE Trans Biomed Eng 2015;62: 1585-94.
    • (2015) IEEE Trans Biomed Eng , vol.62 , pp. 1585-1594
    • Mahrooghy, M.1    Ashraf, A.B.2    Daye, D.3    McDonald, E.S.4    Rosen, M.5    Mies, C.6
  • 44
    • 84923769218 scopus 로고    scopus 로고
    • Developing biomarker-specific end points in lung cancer clinical trials
    • Neal JW, Gainor JF, Shaw AT. Developing biomarker-specific end points in lung cancer clinical trials. Nat Rev Clin Oncol 2015;12:135-46.
    • (2015) Nat Rev Clin Oncol , vol.12 , pp. 135-146
    • Neal, J.W.1    Gainor, J.F.2    Shaw, A.T.3
  • 45
    • 84863466512 scopus 로고    scopus 로고
    • Targeting ALK in neuroblastoma-preclinical and clinical advancements
    • Carpenter EL, Mosse YP. Targeting ALK in neuroblastoma-preclinical and clinical advancements. Nat Rev Clin Oncol 2012;9:391-9.
    • (2012) Nat Rev Clin Oncol , vol.9 , pp. 391-399
    • Carpenter, E.L.1    Mosse, Y.P.2
  • 46
  • 47
    • 84910671460 scopus 로고    scopus 로고
    • Molecular profiling of single circulating tumor cells with diagnostic intention
    • Polzer B, Medoro G, Pasch S, Fontana F, Zorzino L, Pestka A, et al. Molecular profiling of single circulating tumor cells with diagnostic intention. EMBO Mol Med 2014;6:1371-86.
    • (2014) EMBO Mol Med , vol.6 , pp. 1371-1386
    • Polzer, B.1    Medoro, G.2    Pasch, S.3    Fontana, F.4    Zorzino, L.5    Pestka, A.6
  • 48
    • 6044259206 scopus 로고    scopus 로고
    • Tumor cells circulate in the peripheral blood of all major carcinomas but not in healthy subjects or patients with nonmalignant diseases
    • Allard WJ, Matera J, Miller MC, Repollet M, Connelly MC, Rao C, et al. Tumor cells circulate in the peripheral blood of all major carcinomas but not in healthy subjects or patients with nonmalignant diseases. Clin Cancer Res 2004;10:6897-904.
    • (2004) Clin Cancer Res , vol.10 , pp. 6897-6904
    • Allard, W.J.1    Matera, J.2    Miller, M.C.3    Repollet, M.4    Connelly, M.C.5    Rao, C.6
  • 49
    • 84858335921 scopus 로고    scopus 로고
    • Analysis of circulating tumor cells in patients with non-small cell lung cancer using epithelial marker-dependent and-independent approaches
    • Krebs MG, Hou JM, Sloane R, Lancashire L, Priest L, Nonaka D, et al. Analysis of circulating tumor cells in patients with non-small cell lung cancer using epithelial marker-dependent and-independent approaches. J Thorac Oncol 2012;7:306-15.
    • (2012) J Thorac Oncol , vol.7 , pp. 306-315
    • Krebs, M.G.1    Hou, J.M.2    Sloane, R.3    Lancashire, L.4    Priest, L.5    Nonaka, D.6
  • 50
    • 84932606172 scopus 로고    scopus 로고
    • Emergence of multiple EGFR extracellular mutations during cetuximab treatment in colorectal cancer
    • Arena S, Bellosillo B, Siravegna G, Martinez A, Canadas I, Lazzari L, et al. Emergence of multiple EGFR extracellular mutations during cetuximab treatment in colorectal cancer. Clin Cancer Res 2015;21:2157-66.
    • (2015) Clin Cancer Res , vol.21 , pp. 2157-2166
    • Arena, S.1    Bellosillo, B.2    Siravegna, G.3    Martinez, A.4    Canadas, I.5    Lazzari, L.6


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