The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.
HER2 Testing by Local, Central, and Reference Laboratories in Specimens From the North Central Cancer Treatment Group N9831 Intergroup Adjuvant Trial
Open accessAbstract
Purpose: To evaluate concordance between local and central laboratory HER2 testing results in patients from the North Central Cancer Treatment Group (NCCTG) N9831 adjuvant trial of trastuzumab. Patients and Methods: NCCTG N9831 is a randomized, phase III clinical trial comparing three drug regimens: doxorubicin/cyclophosphamide followed by paclitaxel with trastuzumab added concurrently, sequentially, or not at all as adjuvant therapy for women with HER2-positive resected breast cancer. Originally, patients were eligible if their tumors were HER2 positive by either local laboratory immunohistochemistry (IHC) or fluorescence in situ hybridization (FISH). A protocol modification in 2002 made central laboratory testing mandatory, with additional testing of discordant cases conducted by a reference laboratory. Concordance between local and central laboratory, and level of agreement between central and reference laboratory HER2 findings in discordant cases were examined. Results: HER2 positivity was confirmed in 85.8% of 2,535 patients registered since March 2002. When local and central evaluation used the same methodology, concordance was 88.1% for FISH and 81.6% for a diagnostic test for presence of the HER2 protein. Among discordant cases examined at the reference laboratory, there was 94.3% agreement for IHC (0, 1+, 2+) and 95.2% agreement for FISH (not gene amplified). Conclusion: There was a high degree of discordance between local and central testing for IHC and FISH, but a high degree of agreement between central and reference laboratories. These findings support the importance of using high-volume, experienced laboratories for HER2 testing to improve the process of selecting patients likely to benefit from trastuzumab therapy.
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Slamon, D. J., Clark, G. M., Wong, S. G., Levin, W. J., Ullrich, A., & McGuire, W. L. (1987) · Science · doi:10.1126/science.3798106 · Cited by 11,760
Slamon, D. J., Leyland-Jones, B., Shak, S., Fuchs, H., Paton, V., Bajamonde, A., Fleming, T., Eiermann, W., Wolter, J., Pegram, M., et al. (2001) · New England Journal of Medicine · doi:10.1056/nejm200103153441101 · Cited by 11,500
Trastuzumab plus Adjuvant Chemotherapy for Operable HER2-Positive Breast Cancer
Romond, E. H., Perez, E. A., Bryant, J., Suman, V. J., Geyer, C. E., Davidson, N. E., Tan-Chiu, E., Martino, S., Paik, S., Kaufman, P. A., et al. (2005) · New England Journal of Medicine · doi:10.1056/nejmoa052122 · Cited by 5,356
Self-citationCobleigh, M. A., Vogel, C. L., Tripathy, D., Robert, N. J., Scholl, S., Fehrenbacher, L., Wolter, J. M., Paton, V., Shak, S., Lieberman, G., et al. (1999) · Journal of Clinical Oncology · doi:10.1200/jco.1999.17.9.2639 · Cited by 2,765
Vogel, C. L., Cobleigh, M. A., Tripathy, D., Gutheil, J. C., Harris, L. N., Fehrenbacher, L., Slamon, D. J., Murphy, M., Novotny, W. F., Burchmore, M., et al. (2002) · Journal of Clinical Oncology · doi:10.1200/jco.2002.20.3.719 · Cited by 1,860
Bast, R. C., Ravdin, P., Hayes, D. F., Bates, S., Fritsche, H., Jessup, J. M., Kemeny, N., Locker, G. Y., Mennel, R. G., & Somerfield, M. R. (2001) · Journal of Clinical Oncology · doi:10.1200/jco.2001.19.6.1865 · Cited by 879
A multi-rule Shewhart chart for quality control in clinical chemistry.
Westgard, J. O., Barry, P. L., Hunt, M. R., & Groth, T. (1981) · Clinical Chemistry · doi:10.1093/clinchem/27.3.493 · Cited by 831
Pauletti, G., Dandekar, S., Rong, H., Ramos, L., Peng, H., Seshadri, R., & Slamon, D. J. (2000) · Journal of Clinical Oncology · doi:10.1200/jco.2000.18.21.3651 · Cited by 670
Owens, M. A., Horten, B. C., & Da Silva, M. M. (2004) · Clinical Breast Cancer · doi:10.3816/cbc.2004.n.011 · Cited by 657
erbB-2, p53, and Efficacy of Adjuvant Therapy in Lymph Node-Positive Breast Cancer
Thor, A. D., Berry, D. A., Budman, D. R., Muss, H. B., Kute, T., Henderson, I. C., Barcos, M., Cirrincione, C., Edgerton, S., Allred, C., et al. (1998) · JNCI: Journal of the National Cancer Institute · doi:10.1093/jnci/90.18.1346 · Cited by 612
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Prat, A., Navarro, A., Paré, L., Reguart, N., Galván, P., Pascual, T., Martínez, A., Nuciforo, P., Comerma, L., Alos, L., et al. (2017) · Cancer Research · doi:10.1158/0008-5472.can-16-3556 · Cited by 455
Amir, E., Miller, N., Geddie, W., Freedman, O., Kassam, F., Simmons, C., Oldfield, M., Dranitsaris, G., Tomlinson, G., Laupacis, A., et al. (2012) · Journal of Clinical Oncology · doi:10.1200/jco.2010.33.5232 · Cited by 434
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Mittendorf, E. A., Wu, Y., Scaltriti, M., Meric-Bernstam, F., Hunt, K. K., Dawood, S., Esteva, F. J., Buzdar, A. U., Chen, H., Eksambi, S., et al. (2009) · Clinical Cancer Research · doi:10.1158/1078-0432.ccr-09-1735 · Cited by 330
Metadata
- Authors
- Perez, E. A., Suman, V. J., Davidson, N. E., Martino, S., Kaufman, P. A., Lingle, W. L., Flynn, P. J., Ingle, J. N., Visscher, D., & Jenkins, R. B.
- Venue
- Journal of Clinical Oncology
- Published
- 2006-07-01
- Volume
- 24
- Issue
- 19
- Pages
- 3032-3038
- ISSN
- 0732-183X (ISSN-L)
- 1527-7755
- OpenAlex
- W2099630695
- Cited by
- 438
- References
- 27
- FWCI
- 17.21
- Type
- journal article
- Language
- en
- Open access
- bronze
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