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Nardin S, Ruelle T, Giannubilo I, Del Mastro L. Adjuvant treatment in hormone receptor-positive early breast cancer: New approaches of endocrine therapy. TUMORI JOURNAL 2024; 110:162-167. [PMID: 38112006 DOI: 10.1177/03008916231216830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Breast cancer is the most common cancer in women, and luminal breast cancer is the predominant subtype, characterized by the presence of estrogen receptors and/or progesterone receptors in tumor cells. Adjuvant endocrine therapy is the pivotal approach in the management of luminal early breast cancer. Hence, new therapeutic approaches have been studied during the last few years, especially in patients with high risk of recurrence.Here we provide a summary of the most recent clinical trials evaluating adjuvant treatment in hormone-receptors-positive early breast cancer. First, the main cornerstone is related to the role of extended endocrine treatment, which has been widely investigated to access a benefit in disease-free survival and overall survival (only the GIM4 trial has positive feedback about survival) and to tailor the treatment according to patient compliance. The results highlighted an advantage in extending the use of endocrine treatment for at least seven full years, considering aromatase inhibitors as principal drugs. Second, the shift of CDK4/6 inhibitors (CDK4/6i) from advanced to early setting reported positive outcomes, with favorable results from MonarchE and NATALEE trials, using Abemaciclib and Ribociclib respectively, even if non-negligible toxicities have been reported. Last, the use of PARP inhibitors for BRCA1/2 mutated patients has been evaluated in the OlympiA trial (Olaparib), observing a comparable benefit between hormone-receptors-positive and triple-negative early breast cancer.However, more data are still required to better select patients that could benefit more from CDK4/6i considering side effects too, and sequential treatments are still not codified.
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Affiliation(s)
- Simone Nardin
- U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Internal Medicine and Medical Sciences, School of Medicine, University of Genova, Genova, Italy
| | - Tommaso Ruelle
- U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Internal Medicine and Medical Sciences, School of Medicine, University of Genova, Genova, Italy
| | - Irene Giannubilo
- U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Internal Medicine and Medical Sciences, School of Medicine, University of Genova, Genova, Italy
| | - Lucia Del Mastro
- U.O. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Internal Medicine and Medical Sciences, School of Medicine, University of Genova, Genova, Italy
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Tommasi C, Airò G, Pratticò F, Testi I, Corianò M, Pellegrino B, Denaro N, Demurtas L, Dessì M, Murgia S, Mura G, Wekking D, Scartozzi M, Musolino A, Solinas C. Hormone Receptor-Positive/HER2-Positive Breast Cancer: Hormone Therapy and Anti-HER2 Treatment: An Update on Treatment Strategies. J Clin Med 2024; 13:1873. [PMID: 38610638 PMCID: PMC11012464 DOI: 10.3390/jcm13071873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Hormone receptor (HR)-positive/HER2-positive breast cancer represents a distinct subtype expressing estrogen and progesterone receptors with an overexpression of HER2. Approximately 14% of female breast cancer cases are HER2-positive, with the majority being HR-positive. These tumors show a cross-talk between the hormonal and HER2 pathways; the interaction has implications for the treatment options for the disease. In this review, we analyze the biology of HR-positive/HER2-positive breast cancer and summarize the evidence concerning the standard of care options both in neoadjuvant/adjuvant settings and in advanced disease. Additionally, we focus on new trials and drugs for HR-positive/HER2-positive breast cancer and the new entity: HER2-low breast cancer.
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Affiliation(s)
- Chiara Tommasi
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Giulia Airò
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Fabiana Pratticò
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Irene Testi
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
| | - Matilde Corianò
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Benedetta Pellegrino
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Nerina Denaro
- Medical Oncology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
| | - Laura Demurtas
- Medical Oncology, AOU Cagliari, Policlinico Duilio Casula, 09042 Monserrato, Italy (C.S.)
| | - Mariele Dessì
- Medical Oncology, AOU Cagliari, Policlinico Duilio Casula, 09042 Monserrato, Italy (C.S.)
| | - Sara Murgia
- Medical Oncology, University of Cagliari, 09124 Cagliari, Italy
| | - Giovanni Mura
- Pathological Anatomy, Laboratory Valdès, 81200 Cagliari, Italy
| | - Demi Wekking
- Academic Medical Centre, Amsterdam University Medical Center, University of Amsterdam, 1098 XH Amsterdam, The Netherlands
| | - Mario Scartozzi
- Medical Oncology, AOU Cagliari, Policlinico Duilio Casula, 09042 Monserrato, Italy (C.S.)
- Medical Oncology, University of Cagliari, 09124 Cagliari, Italy
| | - Antonino Musolino
- Medical Oncology and Breast Unit, University Hospital of Parma, 43126 Parma, Italy; (G.A.); (F.P.); (I.T.); (M.C.); (B.P.)
- Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
- GOIRC (Gruppo Oncologico Italiano di Ricerca Clinica), 43100 Parma, Italy
| | - Cinzia Solinas
- Medical Oncology, AOU Cagliari, Policlinico Duilio Casula, 09042 Monserrato, Italy (C.S.)
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Copson ER, Abraham JE, Braybrooke JP, Cameron D, McIntosh SA, Michie CO, Okines AFC, Palmieri C, Raja F, Roylance R, Spensley S. Expert UK consensus on the definition of high risk of recurrence in HER2-negative early breast cancer: A modified Delphi panel. Breast 2023; 72:103582. [PMID: 37769521 PMCID: PMC10539921 DOI: 10.1016/j.breast.2023.103582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND There is currently no standardised definition for patients at high risk of recurrence of human epidermal growth factor receptor 2 (HER2)-negative early breast cancer (eBC; stages 1-3) after surgery. This modified Delphi panel aimed to establish expert UK consensus on this definition, separately considering hormone receptor (HR)-positive and triple-negative (TN) patients. METHODS Over three consecutive rounds, results were collected from 29, 24 and 22 UK senior breast cancer oncologists and surgeons, respectively. The first round aimed to determine key risk factors in each patient subgroup; subsequent rounds aimed to establish appropriate risk thresholds. Consensus was pre-defined as ≥70% of respondents. RESULTS Expert consensus was achieved on need to assess age, tumour size, tumour grade, number of positive lymph nodes, inflammatory breast cancer and risk prediction tools in all HER2-negative patients. There was additional agreement on use of tumour profiling tests and biomarkers in HR-positive patients, and pathologic complete response (pCR) status in TN patients. Thresholds for high recurrence risk were subsequently agreed. In HR-positive patients, these included age <35 years, tumour size >5 cm (as independent risk factors); tumour grade 3 (independently and combined with other high-risk factors); number of positive nodes ≥4 (independently) and ≥1 (combined). For TN patients, the following thresholds reached consensus, both independently and in combination with other factors: tumour size >2 cm, tumour grade 3, number of positive nodes ≥1. CONCLUSIONS The results may be a valuable reference point to guide recurrence risk assessment and decision-making after surgery in the HER2-negative eBC population.
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Affiliation(s)
- E R Copson
- Cancer Sciences Academic Unit, University of Southampton, Southampton, UK.
| | - J E Abraham
- Precision Breast Cancer Institute, Department of Oncology, University of Cambridge, Cambridge, UK; Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - J P Braybrooke
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - D Cameron
- Edinburgh Cancer Centre, Western General Hospital, Edinburgh, UK
| | - S A McIntosh
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
| | - C O Michie
- Edinburgh Cancer Centre, Western General Hospital, Edinburgh, UK
| | - A F C Okines
- The Royal Marsden NHS Foundation Trust, London, UK
| | - C Palmieri
- The Clatterbridge Cancer Centre NHS Foundation Trust, Liverpool, UK; Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
| | - F Raja
- University College London Hospitals NHS Foundation Trust, London, UK; North Middlesex University Hospital, North Middlesex University Hospital NHS Trust, London, UK
| | - R Roylance
- University College London Hospitals NHS Foundation Trust, London, UK; NIHR University College London Hospitals Biomedical Research Centre, London, UK
| | - S Spensley
- Musgrove Park Hospital, Somerset NHS Foundation Trust, Taunton, UK
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