Exemestane As Treatment In Adjuvant For Post-Menopausal Patients With Non-Metastatic Breast Cancer

Summary

To compare recurrence free survival between two treatment groups (5 years with exemestane vs 2.5 to 3 years tamoxifen followed by 2 to 2.5 years of exemestane for a total duration of 5 years) This Pfizer sponsored trial is part of an international collaboration of investigators conducting 7 similar yet independent studies in 9 countries. This study is designed to be part of the larger TEAM trial where the data from these 7 studies will be combined. A pre-specified analysis of the pooled data will be conducted. Link to TEAM Trial \[971-ONC-0028-081/A5991026\] Study Results: http://clinicaltrials.gov/ct2/show/results/NCT00036270?term=971-ONC-0028-081\&rank=1

Timeline

Start

2002-01

Primary completion

2008-11

Completion

2009-06

Publications

• Pilgram L, Yang K, Beltran-Bless AA, Pond GR, Vandermeer L, Hilton J, Savard MF, LeBlanc A, Shepherd L, Chen B, Bartlett JM, Taylor KJ, Bayani J, Barker S, Spears M, van der Velde CJ, Meershoek-Klein Kranenbarg E, Dirix L, Mallon E, Hasenburg A, Markopoulos C, Juwara L, Dankar FK, Clemons M, El Emam K. Transfer Learning and Machine Learning for Training Five-Year Survival Prognostic Models in Early Breast Cancer: Development and Validation Study. J Med Internet Res. 2026 Apr 14;28:e88665. doi: 10.2196/88665.
• Leblanc A, Beltran-Bless AA, Pond GR, El Emam K, Juwara L, Clemons L, Bayani J, Pilgram L, Pharoah P, Mallon E, Taylor KJ, Markopoulos C, Dirix L, Vandermeer L, Hilton J, Savard MF, Bartlett JMS, Clemons M. Prognostic and predictive performance of PREDICT 2.1, PREDICT v3, and RSClin in node-negative early breast cancer: a TEAM pathology substudy. Breast Cancer Res Treat. 2026 Feb 5;215(3):74. doi: 10.1007/s10549-026-07909-5.
• Beltran-Bless AA, Pond GR, Bayani J, Barker SL, Spears M, Mallon E, Taylor KJ, Hasenburg A, Markopoulos C, Dirix L, Meershoek-Klein Kranenbarg E, van de Velde CJH, Rea DW, Vandermeer L, Hilton J, Bartlett JMS, Clemons M. Does RSClin provide additional information over classic clinico-pathologic scores (PREDICT 2.1, INFLUENCE 2.0, CTS5)? Breast. 2025 Oct;83:104528. doi: 10.1016/j.breast.2025.104528. Epub 2025 Jul 4.
• Bayani J, Kornaga EN, Crozier C, Jang GH, Bathurst L, Kalatskaya I, Trinh QM, Yao CQ, Livingstone J, Boutros PC, Spears M, McPherson JD, Stein LD, Rea D, Bartlett JMS. Identification of Distinct Prognostic Groups: Implications for Patient Selection to Targeted Therapies Among Anti-Endocrine Therapy-Resistant Early Breast Cancers. JCO Precis Oncol. 2019 Dec;3:1-13. doi: 10.1200/PO.18.00373.
• Derks MGM, Bastiaannet E, van de Water W, de Glas NA, Seynaeve C, Putter H, Nortier JWR, Rea D, Hasenburg A, Markopoulos C, Dirix LY, Portielje JEA, van de Velde CJH, Liefers GJ. Impact of age on breast cancer mortality and competing causes of death at 10 years follow-up in the adjuvant TEAM trial. Eur J Cancer. 2018 Aug;99:1-8. doi: 10.1016/j.ejca.2018.04.009. Epub 2018 Jun 6.
• Derks MGM, Blok EJ, Seynaeve C, Nortier JWR, Kranenbarg EM, Liefers GJ, Putter H, Kroep JR, Rea D, Hasenburg A, Markopoulos C, Paridaens R, Smeets JBE, Dirix LY, van de Velde CJH. Adjuvant tamoxifen and exemestane in women with postmenopausal early breast cancer (TEAM): 10-year follow-up of a multicentre, open-label, randomised, phase 3 trial. Lancet Oncol. 2017 Sep;18(9):1211-1220. doi: 10.1016/S1470-2045(17)30419-9. Epub 2017 Jul 18.
• Kalatskaya I, Trinh QM, Spears M, McPherson JD, Bartlett JMS, Stein L. ISOWN: accurate somatic mutation identification in the absence of normal tissue controls. Genome Med. 2017 Jun 29;9(1):59. doi: 10.1186/s13073-017-0446-9.
• Bartlett JM, Brookes CL, Piper T, van de Velde CJ, Stocken D, Lyttle N, Hasenburg A, Quintayo MA, Kieback DG, Putter H, Markopoulos C, Kranenbarg EM, Mallon EA, Dirix LY, Seynaeve C, Rea DW. Do type 1 receptor tyrosine kinases inform treatment choice? A prospectively planned analysis of the TEAM trial. Br J Cancer. 2013 Oct 29;109(9):2453-61. doi: 10.1038/bjc.2013.609. Epub 2013 Oct 3.
• van de Velde CJ, Rea D, Seynaeve C, Putter H, Hasenburg A, Vannetzel JM, Paridaens R, Markopoulos C, Hozumi Y, Hille ET, Kieback DG, Asmar L, Smeets J, Nortier JW, Hadji P, Bartlett JM, Jones SE. Adjuvant tamoxifen and exemestane in early breast cancer (TEAM): a randomised phase 3 trial. Lancet. 2011 Jan 22;377(9762):321-31. doi: 10.1016/S0140-6736(10)62312-4.

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Indications