Study to Compare Neoadjuvant Combination of Trastuzumab and Pertuzumab With Concurrent Taxane Chemotherapy or Endocrine Therapy and Quality of Life Assessment Under Adjuvant Therapy in Operable HER2+/HR+ Breast Cancer Patients

Summary

This is a prospective, phase IIa, multicenter, randomized, open-label study comparing a pre-surgical combination of trastuzumab and pertuzumab with concurrent weekly paclitaxel chemotherapy or endocrine therapy given for 12 weeks with a quality of life assessment for 40 additional weeks in patients with operable HER2+/HR+ breast cancer.

Timeline

Start

2017-10-05

Primary completion

2020-07-14

Completion

2024-03-04

Publications

• Background Carey LA, Berry DA, Cirrincione CT, Barry WT, Pitcher BN, Harris LN, Ollila DW, Krop IE, Henry NL, Weckstein DJ, Anders CK, Singh B, Hoadley KA, Iglesia M, Cheang MC, Perou CM, Winer EP, Hudis CA. Molecular Heterogeneity and Response to Neoadjuvant Human Epidermal Growth Factor Receptor 2 Targeting in CALGB 40601, a Randomized Phase III Trial of Paclitaxel Plus Trastuzumab With or Without Lapatinib. J Clin Oncol. 2016 Feb 20;34(6):542-9. doi: 10.1200/JCO.2015.62.1268. Epub 2015 Nov 2.
• Background Vaz-Luis I, Ottesen RA, Hughes ME, Marcom PK, Moy B, Rugo HS, Theriault RL, Wilson J, Niland JC, Weeks JC, Lin NU. Impact of hormone receptor status on patterns of recurrence and clinical outcomes among patients with human epidermal growth factor-2-positive breast cancer in the National Comprehensive Cancer Network: a prospective cohort study. Breast Cancer Res. 2012 Oct 1;14(5):R129. doi: 10.1186/bcr3324.
• Background Prat A, Cheang MC, Galvan P, Nuciforo P, Pare L, Adamo B, Munoz M, Viladot M, Press MF, Gagnon R, Ellis C, Johnston S. Prognostic Value of Intrinsic Subtypes in Hormone Receptor-Positive Metastatic Breast Cancer Treated With Letrozole With or Without Lapatinib. JAMA Oncol. 2016 Oct 1;2(10):1287-1294. doi: 10.1001/jamaoncol.2016.0922.
• Background Chan A, Delaloge S, Holmes FA, Moy B, Iwata H, Harvey VJ, Robert NJ, Silovski T, Gokmen E, von Minckwitz G, Ejlertsen B, Chia SKL, Mansi J, Barrios CH, Gnant M, Buyse M, Gore I, Smith J 2nd, Harker G, Masuda N, Petrakova K, Zotano AG, Iannotti N, Rodriguez G, Tassone P, Wong A, Bryce R, Ye Y, Yao B, Martin M; ExteNET Study Group. Neratinib after trastuzumab-based adjuvant therapy in patients with HER2-positive breast cancer (ExteNET): a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Oncol. 2016 Mar;17(3):367-377. doi: 10.1016/S1470-2045(15)00551-3. Epub 2016 Feb 10.
• Background Loibl S, von Minckwitz G, Blohmer J, et al: pCR as a Surrogate in HER2-Positive Patients Treated with Trastuzumab. Supplement to Cancer Research 71:[S5-4] 2011
• Background Tolaney SM, Barry WT, Dang CT, Yardley DA, Moy B, Marcom PK, Albain KS, Rugo HS, Ellis M, Shapira I, Wolff AC, Carey LA, Overmoyer BA, Partridge AH, Guo H, Hudis CA, Krop IE, Burstein HJ, Winer EP. Adjuvant paclitaxel and trastuzumab for node-negative, HER2-positive breast cancer. N Engl J Med. 2015 Jan 8;372(2):134-41. doi: 10.1056/NEJMoa1406281.
• Background Harbeck N, Gluz O, Christgen M, Kates RE, Braun M, Kuemmel S, Schumacher C, Potenberg J, Kraemer S, Kleine-Tebbe A, Augustin D, Aktas B, Forstbauer H, Tio J, von Schumann R, Liedtke C, Grischke EM, Schumacher J, Wuerstlein R, Kreipe HH, Nitz UA. De-Escalation Strategies in Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Early Breast Cancer (BC): Final Analysis of the West German Study Group Adjuvant Dynamic Marker-Adjusted Personalized Therapy Trial Optimizing Risk Assessment and Therapy Response Prediction in Early BC HER2- and Hormone Receptor-Positive Phase II Randomized Trial-Efficacy, Safety, and Predictive Markers for 12 Weeks of Neoadjuvant Trastuzumab Emtansine With or Without Endocrine Therapy (ET) Versus Trastuzumab Plus ET. J Clin Oncol. 2017 Sep 10;35(26):3046-3054. doi: 10.1200/JCO.2016.71.9815. Epub 2017 Jul 6.
• Background Gianni L, Pienkowski T, Im Y-H, et al: Five-year analysis of the phase II NeoSphere trial evaluating four cycles of neoadjuvant docetaxel (D) and/or trastuzumab (T) and/or pertuzumab (P). ASCO Meeting Abstracts 33:505, 2015
• Background Rimawi MF, Niravath P, Wang T, Rexer BN, Forero A, Wolff AC, Nanda R, Storniolo AM, Krop I, Goetz MP, Nangia JR, Jiralerspong S, Pavlick A, Veeraraghavan J, De Angelis C, Gutierrez C, Schiff R, Hilsenbeck SG, Osborne CK; Translational Breast Cancer Research Consortium. TBCRC023: A Randomized Phase II Neoadjuvant Trial of Lapatinib Plus Trastuzumab Without Chemotherapy for 12 versus 24 Weeks in Patients with HER2-Positive Breast Cancer. Clin Cancer Res. 2020 Feb 15;26(4):821-827. doi: 10.1158/1078-0432.CCR-19-0851. Epub 2019 Oct 29.
• Background Gluz O, Nitz U, Liedtke C, et al: Abstract S6-07: Comparison of 12 weeks neoadjuvant Nab-paclitaxel combined with carboplatinum vs. gemcitabine in triple- negative breast cancer: WSG-ADAPT TN randomized phase II trial. Cancer Research 76:S6-07, 2016
• Background Francis PA, Regan MM, Fleming GF. Adjuvant ovarian suppression in premenopausal breast cancer. N Engl J Med. 2015 Apr 23;372(17):1673. doi: 10.1056/NEJMc1502618. No abstract available.
• Background Dowsett M, Smith IE, Ebbs SR, Dixon JM, Skene A, A'Hern R, Salter J, Detre S, Hills M, Walsh G; IMPACT Trialists Group. Prognostic value of Ki67 expression after short-term presurgical endocrine therapy for primary breast cancer. J Natl Cancer Inst. 2007 Jan 17;99(2):167-70. doi: 10.1093/jnci/djk020.
• Background Ellis MJ, Tao Y, Luo J, A'Hern R, Evans DB, Bhatnagar AS, Chaudri Ross HA, von Kameke A, Miller WR, Smith I, Eiermann W, Dowsett M. Outcome prediction for estrogen receptor-positive breast cancer based on postneoadjuvant endocrine therapy tumor characteristics. J Natl Cancer Inst. 2008 Oct 1;100(19):1380-8. doi: 10.1093/jnci/djn309. Epub 2008 Sep 23.
• Background Ellis M, Luo J, Tao Y, et al: Tumor Ki67 Proliferation Index within 4 Weeks of Initiating Neoadjuvant Endocrine Therapy for Early Identification of Non-Responders. Cancer Res 69, 2010
• Background Nitz U, Gluz O, Christgen M, et al: Final analysis of WSG-ADAPT HER2+/HR- trial: Efficacy, safety, and predictive markers for 12-weeks of neoadjuvant dual blockade with trastuzumab + pertuzumab {+/-} weekly paclitaxel in HER2+/HR- early breast cancer (EBC). ASCO Meeting Abstracts 34:518, 2016
• Background Slamon DJ, Clark GM, Wong SG, Levin WJ, Ullrich A, McGuire WL. Human breast cancer: correlation of relapse and survival with amplification of the HER-2/neu oncogene. Science. 1987 Jan 9;235(4785):177-82. doi: 10.1126/science.3798106.
• Background Rouzier R, Perou CM, Symmans WF, Ibrahim N, Cristofanilli M, Anderson K, Hess KR, Stec J, Ayers M, Wagner P, Morandi P, Fan C, Rabiul I, Ross JS, Hortobagyi GN, Pusztai L. Breast cancer molecular subtypes respond differently to preoperative chemotherapy. Clin Cancer Res. 2005 Aug 15;11(16):5678-85. doi: 10.1158/1078-0432.CCR-04-2421.
• Background Von Minckwitz G, Untch M, Nueesch E, et al: Impact of treatment characteristics on response of different breast cancer subtypes: Pooled multilayer analysis of the German neoadjuvant chemotherapy trials. J Clin Oncol (Meeting Abstracts) 28:501-, 2010
• Background Ellis MJ, Coop A, Singh B, Tao Y, Llombart-Cussac A, Janicke F, Mauriac L, Quebe-Fehling E, Chaudri-Ross HA, Evans DB, Miller WR. Letrozole inhibits tumor proliferation more effectively than tamoxifen independent of HER1/2 expression status. Cancer Res. 2003 Oct 1;63(19):6523-31.
• Background Slamon DJ, Leyland-Jones B, Shak S, Fuchs H, Paton V, Bajamonde A, Fleming T, Eiermann W, Wolter J, Pegram M, Baselga J, Norton L. Use of chemotherapy plus a monoclonal antibody against HER2 for metastatic breast cancer that overexpresses HER2. N Engl J Med. 2001 Mar 15;344(11):783-92. doi: 10.1056/NEJM200103153441101.
• Background Romond EH, Perez EA, Bryant J, Suman VJ, Geyer CE Jr, Davidson NE, Tan-Chiu E, Martino S, Paik S, Kaufman PA, Swain SM, Pisansky TM, Fehrenbacher L, Kutteh LA, Vogel VG, Visscher DW, Yothers G, Jenkins RB, Brown AM, Dakhil SR, Mamounas EP, Lingle WL, Klein PM, Ingle JN, Wolmark N. Trastuzumab plus adjuvant chemotherapy for operable HER2-positive breast cancer. N Engl J Med. 2005 Oct 20;353(16):1673-84. doi: 10.1056/NEJMoa052122.
• Background Dowsett M, Allred C, Knox J, Quinn E, Salter J, Wale C, Cuzick J, Houghton J, Williams N, Mallon E, Bishop H, Ellis I, Larsimont D, Sasano H, Carder P, Cussac AL, Knox F, Speirs V, Forbes J, Buzdar A. Relationship between quantitative estrogen and progesterone receptor expression and human epidermal growth factor receptor 2 (HER-2) status with recurrence in the Arimidex, Tamoxifen, Alone or in Combination trial. J Clin Oncol. 2008 Mar 1;26(7):1059-65. doi: 10.1200/JCO.2007.12.9437. Epub 2008 Jan 28.
• Background Kennecke H, Yerushalmi R, Woods R, Cheang MC, Voduc D, Speers CH, Nielsen TO, Gelmon K. Metastatic behavior of breast cancer subtypes. J Clin Oncol. 2010 Jul 10;28(20):3271-7. doi: 10.1200/JCO.2009.25.9820. Epub 2010 May 24.
• Background Untch M, Gelber RD, Jackisch C, Procter M, Baselga J, Bell R, Cameron D, Bari M, Smith I, Leyland-Jones B, de Azambuja E, Wermuth P, Khasanov R, Feng-Yi F, Constantin C, Mayordomo JI, Su CH, Yu SY, Lluch A, Senkus-Konefka E, Price C, Haslbauer F, Suarez Sahui T, Srimuninnimit V, Colleoni M, Coates AS, Piccart-Gebhart MJ, Goldhirsch A; HERA Study Team. Estimating the magnitude of trastuzumab effects within patient subgroups in the HERA trial. Ann Oncol. 2008 Jun;19(6):1090-6. doi: 10.1093/annonc/mdn005. Epub 2008 Feb 21.
• Background Cortazar P, Zhang L, Untch M, Mehta K, Costantino JP, Wolmark N, Bonnefoi H, Cameron D, Gianni L, Valagussa P, Swain SM, Prowell T, Loibl S, Wickerham DL, Bogaerts J, Baselga J, Perou C, Blumenthal G, Blohmer J, Mamounas EP, Bergh J, Semiglazov V, Justice R, Eidtmann H, Paik S, Piccart M, Sridhara R, Fasching PA, Slaets L, Tang S, Gerber B, Geyer CE Jr, Pazdur R, Ditsch N, Rastogi P, Eiermann W, von Minckwitz G. Pathological complete response and long-term clinical benefit in breast cancer: the CTNeoBC pooled analysis. Lancet. 2014 Jul 12;384(9938):164-72. doi: 10.1016/S0140-6736(13)62422-8. Epub 2014 Feb 14.
• Background Prat A, Carey LA, Adamo B, Vidal M, Tabernero J, Cortes J, Parker JS, Perou CM, Baselga J. Molecular features and survival outcomes of the intrinsic subtypes within HER2-positive breast cancer. J Natl Cancer Inst. 2014 Aug 19;106(8):dju152. doi: 10.1093/jnci/dju152. Print 2014 Aug.
• Background Dawood S, Broglio K, Buzdar AU, Hortobagyi GN, Giordano SH. Prognosis of women with metastatic breast cancer by HER2 status and trastuzumab treatment: an institutional-based review. J Clin Oncol. 2010 Jan 1;28(1):92-8. doi: 10.1200/JCO.2008.19.9844. Epub 2009 Nov 23.
• Background Piccart-Gebhart MJ, Procter M, Leyland-Jones B, Goldhirsch A, Untch M, Smith I, Gianni L, Baselga J, Bell R, Jackisch C, Cameron D, Dowsett M, Barrios CH, Steger G, Huang CS, Andersson M, Inbar M, Lichinitser M, Lang I, Nitz U, Iwata H, Thomssen C, Lohrisch C, Suter TM, Ruschoff J, Suto T, Greatorex V, Ward C, Straehle C, McFadden E, Dolci MS, Gelber RD; Herceptin Adjuvant (HERA) Trial Study Team. Trastuzumab after adjuvant chemotherapy in HER2-positive breast cancer. N Engl J Med. 2005 Oct 20;353(16):1659-72. doi: 10.1056/NEJMoa052306.
• Background Joensuu H, Kellokumpu-Lehtinen PL, Bono P, Alanko T, Kataja V, Asola R, Utriainen T, Kokko R, Hemminki A, Tarkkanen M, Turpeenniemi-Hujanen T, Jyrkkio S, Flander M, Helle L, Ingalsuo S, Johansson K, Jaaskelainen AS, Pajunen M, Rauhala M, Kaleva-Kerola J, Salminen T, Leinonen M, Elomaa I, Isola J; FinHer Study Investigators. Adjuvant docetaxel or vinorelbine with or without trastuzumab for breast cancer. N Engl J Med. 2006 Feb 23;354(8):809-20. doi: 10.1056/NEJMoa053028.
• Background Perez E, Suman V, Davidson N, et al: Results of Chemotherapy Alone, with Sequential or Concurrent Addition of 52 Weeks of Trastuzumab in the NCCTG N9831 HER2-Positive Adjuvant Breast Cancer Trial. Cancer Res 69:Abstract 80, 2010
• Background Swain SM, Baselga J, Kim SB, Ro J, Semiglazov V, Campone M, Ciruelos E, Ferrero JM, Schneeweiss A, Heeson S, Clark E, Ross G, Benyunes MC, Cortes J; CLEOPATRA Study Group. Pertuzumab, trastuzumab, and docetaxel in HER2-positive metastatic breast cancer. N Engl J Med. 2015 Feb 19;372(8):724-34. doi: 10.1056/NEJMoa1413513.
• Background Baselga J, Cortes J, Kim SB, Im SA, Hegg R, Im YH, Roman L, Pedrini JL, Pienkowski T, Knott A, Clark E, Benyunes MC, Ross G, Swain SM; CLEOPATRA Study Group. Pertuzumab plus trastuzumab plus docetaxel for metastatic breast cancer. N Engl J Med. 2012 Jan 12;366(2):109-19. doi: 10.1056/NEJMoa1113216. Epub 2011 Dec 7.
• Background Geyer CE, Forster J, Lindquist D, Chan S, Romieu CG, Pienkowski T, Jagiello-Gruszfeld A, Crown J, Chan A, Kaufman B, Skarlos D, Campone M, Davidson N, Berger M, Oliva C, Rubin SD, Stein S, Cameron D. Lapatinib plus capecitabine for HER2-positive advanced breast cancer. N Engl J Med. 2006 Dec 28;355(26):2733-43. doi: 10.1056/NEJMoa064320.
• Background Verma S, Miles D, Gianni L, Krop IE, Welslau M, Baselga J, Pegram M, Oh DY, Dieras V, Guardino E, Fang L, Lu MW, Olsen S, Blackwell K; EMILIA Study Group. Trastuzumab emtansine for HER2-positive advanced breast cancer. N Engl J Med. 2012 Nov 8;367(19):1783-91. doi: 10.1056/NEJMoa1209124. Epub 2012 Oct 1.
• Background Liedtke C, Mazouni C, Hess KR, Andre F, Tordai A, Mejia JA, Symmans WF, Gonzalez-Angulo AM, Hennessy B, Green M, Cristofanilli M, Hortobagyi GN, Pusztai L. Response to neoadjuvant therapy and long-term survival in patients with triple-negative breast cancer. J Clin Oncol. 2008 Mar 10;26(8):1275-81. doi: 10.1200/JCO.2007.14.4147. Epub 2008 Feb 4.
• Background Gianni L, Eiermann W, Semiglazov V, Manikhas A, Lluch A, Tjulandin S, Zambetti M, Vazquez F, Byakhow M, Lichinitser M, Climent MA, Ciruelos E, Ojeda B, Mansutti M, Bozhok A, Baronio R, Feyereislova A, Barton C, Valagussa P, Baselga J. Neoadjuvant chemotherapy with trastuzumab followed by adjuvant trastuzumab versus neoadjuvant chemotherapy alone, in patients with HER2-positive locally advanced breast cancer (the NOAH trial): a randomised controlled superiority trial with a parallel HER2-negative cohort. Lancet. 2010 Jan 30;375(9712):377-84. doi: 10.1016/S0140-6736(09)61964-4.
• Background Buzdar AU, Ibrahim NK, Francis D, Booser DJ, Thomas ES, Theriault RL, Pusztai L, Green MC, Arun BK, Giordano SH, Cristofanilli M, Frye DK, Smith TL, Hunt KK, Singletary SE, Sahin AA, Ewer MS, Buchholz TA, Berry D, Hortobagyi GN. Significantly higher pathologic complete remission rate after neoadjuvant therapy with trastuzumab, paclitaxel, and epirubicin chemotherapy: results of a randomized trial in human epidermal growth factor receptor 2-positive operable breast cancer. J Clin Oncol. 2005 Jun 1;23(16):3676-85. doi: 10.1200/JCO.2005.07.032. Epub 2005 Feb 28.
• Background Untch M, Fasching P, Konecny G, et al: Pathological Complete Response after Neoadjuvant Chemotherapy + Trastuzumab Treatment Predicts Survival and Detects a Patient Subgroup at High Need for Improvement of Anti-HER2 Therapy. Three Year Median Follow-Up Data of the TECHNO Trial. Cancer Res 71:P1-11-03, 2011
• Background Robidoux A, Tang G, Rastogi P, Geyer CE Jr, Azar CA, Atkins JN, Fehrenbacher L, Bear HD, Baez-Diaz L, Sarwar S, Margolese RG, Farrar WB, Brufsky AM, Shibata HR, Bandos H, Paik S, Costantino JP, Swain SM, Mamounas EP, Wolmark N. Lapatinib as a component of neoadjuvant therapy for HER2-positive operable breast cancer (NSABP protocol B-41): an open-label, randomised phase 3 trial. Lancet Oncol. 2013 Nov;14(12):1183-92. doi: 10.1016/S1470-2045(13)70411-X. Epub 2013 Oct 4.
• Background Von Minckwitz G, Kaufmann M, Kuemmel S, et al: Correlation of various pathologic complete response (pCR) definitions with long-term outcome and the prognostic value of pCR in various breast cancer subtypes: Results from the German neoadjuvant meta-analysis. J Clin Oncol 29:abstr 1028, 2011
• Background Guarneri V, Broglio K, Kau SW, Cristofanilli M, Buzdar AU, Valero V, Buchholz T, Meric F, Middleton L, Hortobagyi GN, Gonzalez-Angulo AM. Prognostic value of pathologic complete response after primary chemotherapy in relation to hormone receptor status and other factors. J Clin Oncol. 2006 Mar 1;24(7):1037-44. doi: 10.1200/JCO.2005.02.6914.
• Background de Azambuja E, Holmes AP, Piccart-Gebhart M, Holmes E, Di Cosimo S, Swaby RF, Untch M, Jackisch C, Lang I, Smith I, Boyle F, Xu B, Barrios CH, Perez EA, Azim HA Jr, Kim SB, Kuemmel S, Huang CS, Vuylsteke P, Hsieh RK, Gorbunova V, Eniu A, Dreosti L, Tavartkiladze N, Gelber RD, Eidtmann H, Baselga J. Lapatinib with trastuzumab for HER2-positive early breast cancer (NeoALTTO): survival outcomes of a randomised, open-label, multicentre, phase 3 trial and their association with pathological complete response. Lancet Oncol. 2014 Sep;15(10):1137-46. doi: 10.1016/S1470-2045(14)70320-1. Epub 2014 Aug 14.
• Background Gianni L, Pienkowski T, Im Y-H, et al: Neoadjuvant Pertuzumab (P) and Trastuzumab (H): Antitumor and Safety Analysis of a Randomized Phase II Study ('NeoSphere'). Cancer Res 71:[S3-2], 2011
• Background Schneeweiss A, Chia S, Hickish T, et al: Neoadjuvant Pertuzumab and Trastuzumab Concurrent or Sequential with an Anthracycline-Containing or Concurrent with an Anthracycline-Free Standard Regimen: A Randomized Phase II Study (TRYPHAENA). Supplement to Cancer Research 71:[S5-6] 2011
• Background Hurvitz SA, Martin M, Symmans WF, et al: Pathologic complete response (pCR) rates after neoadjuvant trastuzumab emtansine (T-DM1 [K]) + pertuzumab (P) vs docetaxel + carboplatin + trastuzumab + P (TCHP) treatment in patients with HER2-positive (HER2+) early breast cancer (EBC) (KRISTINE). ASCO Meeting Abstracts 34:500, 2016
• Background Loi S, Dafni U, Karlis D, Polydoropoulou V, Young BM, Willis S, Long B, de Azambuja E, Sotiriou C, Viale G, Ruschoff J, Piccart MJ, Dowsett M, Michiels S, Leyland-Jones B. Effects of Estrogen Receptor and Human Epidermal Growth Factor Receptor-2 Levels on the Efficacy of Trastuzumab: A Secondary Analysis of the HERA Trial. JAMA Oncol. 2016 Aug 1;2(8):1040-7. doi: 10.1001/jamaoncol.2016.0339.
• Background Piccart-Gebhart M, Holmes E, Baselga J, de Azambuja E, Dueck AC, Viale G, Zujewski JA, Goldhirsch A, Armour A, Pritchard KI, McCullough AE, Dolci S, McFadden E, Holmes AP, Tonghua L, Eidtmann H, Dinh P, Di Cosimo S, Harbeck N, Tjulandin S, Im YH, Huang CS, Dieras V, Hillman DW, Wolff AC, Jackisch C, Lang I, Untch M, Smith I, Boyle F, Xu B, Gomez H, Suter T, Gelber RD, Perez EA. Adjuvant Lapatinib and Trastuzumab for Early Human Epidermal Growth Factor Receptor 2-Positive Breast Cancer: Results From the Randomized Phase III Adjuvant Lapatinib and/or Trastuzumab Treatment Optimization Trial. J Clin Oncol. 2016 Apr 1;34(10):1034-42. doi: 10.1200/JCO.2015.62.1797. Epub 2015 Nov 23.
• Background Rimawi MF, Mayer IA, Forero A, Nanda R, Goetz MP, Rodriguez AA, Pavlick AC, Wang T, Hilsenbeck SG, Gutierrez C, Schiff R, Osborne CK, Chang JC. Multicenter phase II study of neoadjuvant lapatinib and trastuzumab with hormonal therapy and without chemotherapy in patients with human epidermal growth factor receptor 2-overexpressing breast cancer: TBCRC 006. J Clin Oncol. 2013 May 10;31(14):1726-31. doi: 10.1200/JCO.2012.44.8027. Epub 2013 Apr 8.
• Background Guarneri V, Chavez-Mac Gregor M, Hsu L, et al: Use of Ki-67 in residual disease following preoperative chemotherapy to predict of recurrence and death in breast cancer patients. J Clin Oncol (Meeting Abstracts) 28:621-, 2010
• Background Giuliano AE, Hunt KK, Ballman KV, Beitsch PD, Whitworth PW, Blumencranz PW, Leitch AM, Saha S, McCall LM, Morrow M. Axillary dissection vs no axillary dissection in women with invasive breast cancer and sentinel node metastasis: a randomized clinical trial. JAMA. 2011 Feb 9;305(6):569-75. doi: 10.1001/jama.2011.90.
• Background Whelan TJ, Olivotto I, Ackerman I, et al: NCIC-CTG MA.20: An intergroup trial of regional nodal irradiation in early breast cancer. J Clin Oncol Suppl:LBA1003, 2011
• Background Marinovich ML, Houssami N, Macaskill P, von Minckwitz G, Blohmer JU, Irwig L. Accuracy of ultrasound for predicting pathologic response during neoadjuvant therapy for breast cancer. Int J Cancer. 2015 Jun 1;136(11):2730-7. doi: 10.1002/ijc.29323. Epub 2014 Nov 25.
• Background Gourgou-Bourgade S, Cameron D, Poortmans P, Asselain B, Azria D, Cardoso F, A'Hern R, Bliss J, Bogaerts J, Bonnefoi H, Brain E, Cardoso MJ, Chibaudel B, Coleman R, Cufer T, Dal Lago L, Dalenc F, De Azambuja E, Debled M, Delaloge S, Filleron T, Gligorov J, Gutowski M, Jacot W, Kirkove C, MacGrogan G, Michiels S, Negreiros I, Offersen BV, Penault Llorca F, Pruneri G, Roche H, Russell NS, Schmitt F, Servent V, Thurlimann B, Untch M, van der Hage JA, van Tienhoven G, Wildiers H, Yarnold J, Bonnetain F, Mathoulin-Pelissier S, Bellera C, Dabakuyo-Yonli TS. Guidelines for time-to-event end point definitions in breast cancer trials: results of the DATECAN initiative (Definition for the Assessment of Time-to-event Endpoints in CANcer trials)dagger. Ann Oncol. 2015 May;26(5):873-879. doi: 10.1093/annonc/mdv106. Epub 2015 Feb 27.
• Gluz O, Nitz UA, Christgen M, Kuemmel S, Holtschmidt J, Schumacher J, Raeth P, Hartkopf AD, Luedtke-Heckenkamp K, Just M, von Schumann R, Polata S, Schinkoethe T, Graeser MK, Kates R, Wuerstlein R, Harbeck N. Survival Analysis of the WSG TP-II Trial: Neoadjuvant Trastuzumab and Pertuzumab Plus Endocrine Therapy Versus Chemotherapy in Hormone Receptor-Positive/Human Epidermal Growth Factor Receptor 2-Positive Early Breast Cancer. J Clin Oncol. 2026 Jul 20;44(21):1974-1980. doi: 10.1200/JCO-25-01047. Epub 2026 May 18.
• Gluz O, Nitz UA, Christgen M, Kuemmel S, Holtschmidt J, Schumacher J, Hartkopf A, Potenberg J, Luedtke-Heckenkamp K, Just M, Schem C, von Schumann R, Kolberg-Liedtke C, Eulenburg CZ, Schinkothe T, Graeser M, Wuerstlein R, Kates RE, Kreipe HH, Harbeck N. Efficacy of Endocrine Therapy Plus Trastuzumab and Pertuzumab vs De-escalated Chemotherapy in Patients with Hormone Receptor-Positive/ERBB2-Positive Early Breast Cancer: The Neoadjuvant WSG-TP-II Randomized Clinical Trial. JAMA Oncol. 2023 Jul 1;9(7):946-954. doi: 10.1001/jamaoncol.2023.0646.

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