1. Recommendations for standardized pathological characterization of residual disease for neoadjuvant clinical trials of breast cancer by the BIG-NABCG collaboration
- Author
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Bossuyt, V, Provenzano, E, Symmans, WF, Boughey, JC, Coles, C, Curigliano, G, Dixon, JM, Esserman, LJ, Fastner, G, Kuehn, T, Peintinger, F, von Minckwitz, G, White, J, Yang, W, Badve, S, Denkert, C, MacGrogan, G, Penault-Llorca, F, Viale, G, Cameron, D, collaboration, Breast International Group-North American Breast Cancer Group, Earl, Helena, Alba, Emilio, Lluch, Ana, Albanell, Joan, Amos, Keith, Biernat, Wojciech, Bonnefoi, Hervé, Buzdar, Aman, Cane, Paul, Pinder, Sarah, Carson, Lesley, Dickson-Witmer, Diana, Gong, Gyungyub, Green, Jimmy, Hsu, Chih-Yi, Tseng, Ling-Ming, Kroep, Judith, Leitch, A Marilyn, Sarode, Venetia, Mamounas, Eleftherios, Marcom, Paul Kelly, Nuciforo, Paolo, Paik, Soonmyung, Peg, Vicente, Peston, David, Pierga, Jean-Yves, Quintela-Fandino, Miguel, Salgado, Roberto, Sikov, William, Thomas, Jeremy, Unzeitig, Gary, and Wesseling, Jelle
- Subjects
Biomedical and Clinical Sciences ,Oncology and Carcinogenesis ,Clinical Research ,Breast Cancer ,Cancer ,Antineoplastic Combined Chemotherapy Protocols ,Breast Neoplasms ,Chemotherapy ,Adjuvant ,Clinical Trials as Topic ,Female ,Humans ,Neoadjuvant Therapy ,Neoplasm Staging ,Neoplasm ,Residual ,Practice Guidelines as Topic ,Prognosis ,breast cancer ,neoadjuvant systemic therapy ,residual disease ,pathologic complete response ,pathologic assessment ,response evaluation ,Breast International Group-North American Breast Cancer Group (BIG-NABCG) collaboration ,Oncology & Carcinogenesis ,Clinical sciences ,Oncology and carcinogenesis - Abstract
Neoadjuvant systemic therapy (NAST) provides the unique opportunity to assess response to treatment after months rather than years of follow-up. However, significant variability exists in methods of pathologic assessment of response to NAST, and thus its interpretation for subsequent clinical decisions. Our international multidisciplinary working group was convened by the Breast International Group-North American Breast Cancer Group (BIG-NABCG) collaboration and tasked to recommend practical methods for standardized evaluation of the post-NAST surgical breast cancer specimen for clinical trials that promote accurate and reliable designation of pathologic complete response (pCR) and meaningful characterization of residual disease. Recommendations include multidisciplinary communication; clinical marking of the tumor site (clips); and radiologic, photographic, or pictorial imaging of the sliced specimen, to map the tissue sections and reconcile macroscopic and microscopic findings. The information required to define pCR (ypT0/is ypN0 or ypT0 yp N0), residual ypT and ypN stage using the current AJCC/UICC system, and the Residual Cancer Burden system were recommended for quantification of residual disease in clinical trials.
- Published
- 2015