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The benefit of chemotherapy for adjuvant treatment of early HR+ breast cancer has historically been difficult to predict, as it is not fully predicted by traditional clinicopathologic factors alone, such as age, tumour size, grade, nodal status and ER expression.1,2 As a result, some patients may be overtreated and exposed to avoidable toxicity, while others may be undertreated.3 Guideline‑endorsed multi‑gene assays (MGAs), including the Oncotype DX 21‑gene recurrence score test, provide independent and complementary prognostic information beyond standard factors that may support clinicians in determining recurrence risk and estimating the likelihood of chemotherapy benefit.4,5 Current international and NCCN guidelines incorporate MGAs into decision algorithms, supporting more nuanced application of adjuvant chemotherapy.6,7 In addition, the emergence of adjuvant CDK4/6 inhibitors has expanded options for patients with higher residual risk of early breast cancer recurrence, including those with node‑positive disease.6–8
In this touchMEETING HIGHLIGHTS a leading panel of experts clarify early HR+ breast cancer prognosis versus prediction, illustrate how to incorporate genomic testing when considering adjuvant CDK4/6 inhibitors and outline current personalised approaches for patients with node‑positive disease.
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Early Breast Cancer Trialists’ Collaborative Group (EBCTCG), Peto R, Davies C, et al. Comparisons between different polychemotherapy regimens for early breast cancer: meta-analyses of long-term outcome among 100,000 women in 123 randomised trials. Lancet. 2012;379:432–444.
Sparano JA, Gray RJ, Makower DF, et al. Adjuvant Chemotherapy Guided by a 21-Gene Expression Assay in Breast Cancer. N Engl J Med. 2018;379:111–121.
Pak LM, Morrow M. Addressing the problem of overtreatment in breast cancer. Expert Rev Anticancer Ther. 2022;22:535–548.
Loibl S, André F, Bachelot T, et al. Early breast cancer: ESMO Clinical Practice Guideline for diagnosis, treatment and follow-up. Ann Oncol. 2024;35:159–182.
Andre F, Ismaila N, Allison KH, et al. Biomarkers for Adjuvant Endocrine and Chemotherapy in Early-Stage Breast Cancer: ASCO Guideline Update. J Clin Oncol. 2022;40:1816–1837.
NCCN Clinical Practice Guidelines in Oncology. Breast Cancer. Version 3. 2026. Available at: www.nccn.org (accessed June 2026).
Burstein HJ, Curigliano G, Gnant M, et al. Tailoring treatment to cancer risk and patient preference: the 2025 St Gallen International Breast Cancer Consensus Statement on individualizing therapy for patients with early breast cancer. Ann Oncol. 2025;36:1433–1446.
Curigliano G, et al. Updated treatment recommendations for systemic treatment: from the ESMO Metastatic Breast Cancer Living Guideline. Ann Oncol. 2025;36:1414–1418.
Professor Giampaolo Bianchini is Head of Breast Oncology in the Department of Medical Oncology at IRCCS Ospedale San Raffaele and Associate Professor at Vita-Salute San Raffaele University in Italy. Professor Bianchini manages and treats patients with early-stage and metastatic breast cancer and is internationally recognised as an opinion leader in the field of breast cancer. He has a strong interest in the development of new therapies and immunotherapeutic approaches for the treatment of this disease. Professor Bianchini is also responsible for the translational clinical research and immunotherapy group within the Department of Medical Oncology and is involved in numerous research projects dedicated to women with breast cancer. These research projects are aim to understand the mechanisms of response and resistance to available drugs, identify new therapeutic strategies and define useful biomarkers for improving the personalisation of treatments. Professor Bianchini has authored numerous publications in international journals including Nature, The Lancet, Annals of Oncology, The Lancet Oncology, Journal of Clinical Oncology, Nature Medicine, Nature Reviews Clinical Oncology.
Consultancy fees from AstraZeneca, Daiichi Sankyo, Eli Lilly, Gilead, Menarini, MSD, Novartis, Roche, Seagen, and Tethis. Honoraria and/or advisory board fees from AstraZeneca, Daiichi Sankyo, EISAI, Eli Lilly, Exact Sciences, Gilead, Helsinn, Menarini, MSD, Novartis, Pfizer, Roche, and Seagen. Support for attending meetings and/or travel from AstraZeneca, Daiichi Sankyo, Eli Lilly, MSD, Novartis, Pfizer, Roche and Takeda. Institutional funding via a research grant from Gilead.
Professor Shani Paluch-Shimon, MBBS, MSc, is a medical oncologist at the Hadassah University Hospital in Jerusalem, Israel. Her research focuses on young women with breast cancer, hereditary breast cancer and health care disparities among culturally diverse populations in Israel, and she established the first clinical service for young women with breast cancer in Israel. Professor Paluch-Shimon was Chair of the Breast Cancer in Young Women international conference, lead author on guidelines for the treatment of young women with breast cancer, and served three terms as subject editor for breast cancer in the European Society of Oncology (ESMO) clinical practice guidelines committee. She has been lead author on screening and prevention guidelines for women with hereditary breast and ovarian cancer syndrome and is a member of the Advanced Breast Cancer Global Alliance consensus panel. Currently, her research focus is on bridging the healthcare gap for culturally and ethnically disadvantaged groups with breast cancer.
Speakers bureau from AstraZeneca, Exact Sciences/Rhenium, Gilead, Lilly, Medison, MSD, Novartis, Pfizer, and Roche. Honoraria from AstraZeneca, Exact Sciences/Rhenium, Lilly, MSD, Novartis, Pfizer, and Roche. Consultancy fees from AstraZeneca, Gilead, Lilly, MSD, Novartis, Pfizer, Roche, Stemline and Summit therapeutics. Travel fees from Roche.
Dr Mattea Reinisch, MD, PhD, is Head of the Breast Unit at the University Medical Center Mannheim in Germany. She is an active member of the adjuvant and neoadjuvant Subboard of the German Breast Group, as well as a member at the European Society of Medical Oncology (ESMO), German Society for Ultrasound in Medicine (DEGUM) and the German Cancer Society (DKG). Among others, she is author of various major publications about male breast cancer and deescalating strategies on the axillary surgery. Dr Reinisch has been principal investigator for more than 20 multicentre Phase 2 and 3 clinical trials. She is working on finding strategies to improve study recruitments into clinical trials in Germany, and is co-founder of the locoregional study network west-go-breast.de. Her research has been acknowledged by national and international committees.
Honoraria and/or consultancy fees from AstraZeneca, Böhringer Ingelheim, Daiichi Sankyo, Gilead, Lilly, MSD, Novartis, OnkowissenTV, Pfizer, Roche, Seagen, Somatex, Streamed Up, Wolters Kluwer and Wiley. Travel support from AstraZeneca, Daiichi Sankyo, Gilead, Lilly, Novartis, Pfizer and Roche.
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This activity is sponsored by Exact Sciences is now Abbott.
Exact Sciences is now Abbott provided financial support and symposium video content, and has had input into the detailed project scope. This activity is provided by touchMEDICAL for touchONCOLOGY.
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Exact Sciences is now Abbott provided financial support and symposium video content, and has had input into the detailed project scope. This activity is provided by touchMEDICAL for touchONCOLOGY.
Unapproved products or unapproved uses of approved products may be discussed; these situations may reflect the approval status in one or more jurisdictions. touchMEDICAL has advised the sponsor to ensure that they disclose any such references made to unlabelled or unapproved use. No endorsement by touchMEDICAL of any unapproved products or unapproved uses is either made or implied by mention of these products or uses in touchMEDICAL activities. touchMEDICAL accepts no responsibility for errors or omissions.
The views and opinions expressed are those of the faculty and do not necessarily reflect those of any sponsor.
M-INT-IBC-01039
Date of preparation: July 2026
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