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Kim H, Yoon TI, Kim S, Lee SB, Kim J, Chung IY, Ko BS, Lee JW, Son BH, Gwark S, Kim JK, Kim HJ. Survival After Development of Contralateral Breast Cancer in Korean Patients With Breast Cancer. JAMA Netw Open 2023; 6:e2333557. [PMID: 37707815 PMCID: PMC10502526 DOI: 10.1001/jamanetworkopen.2023.33557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/21/2023] [Indexed: 09/15/2023] Open
Abstract
Importance Contralateral breast cancer (CBC) is the most frequently diagnosed primary cancer in patients with breast cancer. Although many studies have reported survival after the development of CBC, results have been inconsistent. Objective To investigate whether the development of CBC is associated with survival among patients with breast cancer. Design, Setting, and Participants This cohort study was conducted at the Asan Medical Center, Korea, among patients who were diagnosed with primary unilateral, nonmetastatic, stage 0 to III breast cancer between 1999 and 2013 and followed up through 2018. The median (IQR) follow-up was 107 (75-143) months. Patients were categorized into CBC and no-CBC groups by whether they developed CBC during the follow-up period. Data were analyzed from November 2021 to March 2023. Exposure Development of CBC. Main outcomes and measures Survival rates of CBC and no-CBC groups were compared using a time-dependent Cox proportional hazard model in the entire study population and in subgroup analyses by interval of CBC development and subtype of the primary breast cancer. Results Among 16 251 patients with breast cancer (all Asian, specifically Korean; mean [SD] age, 48.61 [10.06] years), 418 patients developed CBC. There was no significant difference in overall survival between CBC and no-CBC groups (hazard ratio, 1.166; 95% CI, 0.820-1.657). Patients who developed CBC within 1.5 years after the surgery of the primary breast cancer had a higher risk for overall death during the study period (hazard ratio, 2.014; 95% CI, 1.044-3.886), and those who developed CBC after 1.5 years showed no significant difference in survival compared with the no-CBC group. Patients with hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (ERBB2, formerly HER2)-negative breast cancer had a higher risk for overall death in the CBC group (hazard ratio, 1.882; 95% CI, 1.143-3.098) compared with the no-CBC group. Conclusions and Relevance This study found that development of CBC in patients with breast cancer was not associated with survival but that early development of CBC after diagnosis of the primary breast cancer or development of CBC in patients with HR-positive/ERBB2-negative breast cancer was associated with survival. These results may provide valuable information for patients seeking advice on opting for contralateral prophylactic mastectomy.
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Affiliation(s)
- Hakyoung Kim
- Department of Surgery, Dongguk University College of Medicine, Dongguk University Ilsan Hospital, Goyang, Republic of Korea
| | - Tae In Yoon
- Division of Breast Surgery, Department of Surgery, Dongnam Institute of Radiological and Medical Science, Busan, Republic of Korea
| | - Seonok Kim
- Department of Clinical Epidemiology and Biostatistics, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Republic of Korea
| | - Sae Byul Lee
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jisun Kim
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Il Yong Chung
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Beom Seok Ko
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jong Won Lee
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Byung Ho Son
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Sungchan Gwark
- Department of Surgery, Ewha Woman’s University College of Medicine, Ewha Woman’s University Mokdong Hospital, Seoul, Republic of Korea
| | | | - Hee Jeong Kim
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
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Dubrava AL, Kyaw PSP, Newman J, Pringle J, Westhuyzen J, La Hera Fuentes G, Shakespeare TP, Sakalkale R, Aherne NJ. Androgen Receptor Status in Triple Negative Breast Cancer: Does It Correlate with Clinicopathological Characteristics? BREAST CANCER (DOVE MEDICAL PRESS) 2023; 15:359-371. [PMID: 37197610 PMCID: PMC10184857 DOI: 10.2147/bctt.s405719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/24/2023] [Indexed: 05/19/2023]
Abstract
Purpose Triple negative breast cancer (TNBC) is a breast carcinoma subtype that neither expresses estrogen (ER) and progesterone receptors (PR) nor the human epidermal growth factor receptor 2 (HER2). Patients with TNBC have been shown to have poorer outcomes mainly owing to the limited treatment options available. However, some studies have shown TNBC tumors expressing androgen receptors (AR), raising hopes of its prognostic role. Patients and Methods This retrospective study investigated the expression of AR in TNBC and its relationship with known patient demographics, tumor and survival characteristics. From the records of 205 TNBC patients, 36 had available archived tissue samples eligible for AR staining. For statistical purposes, tumors were classified as either "positive" or "negative" for AR expression. The nuclear expression of AR was scored by measuring the percentage of stained tumor cells and its staining intensity. Results AR was expressed by 50% of the tissue samples in our TNBC cohort. The relationship between AR status with age at the time of TNBC diagnosis was statistically significant, with all AR positive TNBC patients being greater than 50 years old (vs 72.2% in AR negative TNBC). Also, the relationship between AR status and type of surgery received was statistically significant. There were no statistically significant associations between AR status with other tumor characteristics including "TNM status", tumor grade or treatments received. There was no statistically significant difference in median survival between AR negative and AR positive TNBC patients (3.5 vs 3.1 years; p = 0.581). The relationship between OS time and AR status (p = 0.581), type of surgery (p = 0.061) and treatments (p = 0.917) were not statistically significant. Conclusion The androgen receptor may be an important prognostic marker in TNBC, with further research warranted. This research may benefit future studies investigating receptor-targeted therapies in TNBC.
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Affiliation(s)
- Alex L Dubrava
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Pan Su Pyae Kyaw
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Joseph Newman
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Jarrad Pringle
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Justin Westhuyzen
- School of Health and Human Sciences, Southern Cross University, Coffs Harbour, New South Wales, Australia
| | - Gina La Hera Fuentes
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Thomas P Shakespeare
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
| | - Renukadas Sakalkale
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Base Hospital Pathology, Coffs Harbour, New South Wales, Australia
| | - Noel J Aherne
- Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour, New South Wales, Australia
- Coffs Harbour Rural Clinical School, University of New South Wales, Coffs Harbour Health Campus, Coffs Harbour, New South Wales, Australia
- School of Health and Human Sciences, Southern Cross University, Coffs Harbour, New South Wales, Australia
- Correspondence: Noel J Aherne, Department of Radiation Oncology, Mid North Coast Cancer Centre, Coffs Harbour Hospital, Coffs Harbour, New South Wales, 2450, Australia, Tel + 61 2 6656 5125, Fax +61 2 6656 5855, Email
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Wen S, Manuel L, Doolan M, Westhuyzen J, Shakespeare TP, Aherne NJ. Effect of Clinical and Treatment Factors on Survival Outcomes of Triple Negative Breast Cancer Patients. BREAST CANCER-TARGETS AND THERAPY 2020; 12:27-35. [PMID: 32184654 PMCID: PMC7064282 DOI: 10.2147/bctt.s236483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/08/2020] [Indexed: 11/26/2022]
Abstract
Purpose Triple negative breast cancer (TNBC) accounts for approximately 15% of breast cancer cases and is associated with a poor prognosis. In this retrospective study of patients undergoing radiation therapy as part of their treatment, disease-free survival (DFS) and overall survival (OS) of TNBC patients were examined in relation to clinical and treatment-related factors. Patients and Methods The electronic records of 214 consecutive TNBC patients treated with surgery followed by radiotherapy at the Mid North Coast Cancer Institute between 2006 and 2016 were reviewed. Overall survival and DFS times were analyzed using the Kaplan-Meier method; multivariate Cox proportional hazard regression modelling was used to assess the significance of prognostic factors. Results The majority of tumors were T1 (51.9%), followed by T2 (39.2%) and T3 (6.1%). For the whole group, mean DFS was 106.4 (SD 48.7) months; OS 109.4 (SD 52.1) months. Radiotherapy technique, fractionation protocol and laterality were not significant factors for DFS or OS (p>0.05). However, compared to breast conservation, mastectomy was associated with poorer DFS (mean 114.2 vs 65.2 months; p<0.0001) and poorer OS (mean 115.5 vs 80.5 months; p=0.0015). The mastectomy group had fewer patients with tumor size T1 (p=0.001) and higher proportions of T3 (p=0.001) and T4 (p=0.02). On multivariate analysis, tumor size T3/T4 and nodal status N2/N3 were significant factors for reduced DFS (p=0.023 and p=0.0003 respectively). Tumor size T3/T4 was the only significant prognostic factor for reduced OS (p=0.019). Conclusion Advanced disease exhibited by tumor size > 5cm and positive nodal status is associated with poorer DFS in TNBC patients. Radiotherapy technique or fractionation protocol were not associated with differences in DFS or OS in our patient cohort.
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Affiliation(s)
- Shelly Wen
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia.,University of New South Wales, Sydney, New South Wales, Australia
| | - Lucy Manuel
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia.,University of New South Wales, Sydney, New South Wales, Australia
| | - Moira Doolan
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia.,University of New South Wales, Sydney, New South Wales, Australia
| | - Justin Westhuyzen
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia
| | - Thomas P Shakespeare
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia.,University of New South Wales, Sydney, New South Wales, Australia
| | - Noel J Aherne
- Department of Radiation Oncology, Mid North Coast Cancer Institute, Coffs Harbour, New South Wales, Australia.,University of New South Wales, Sydney, New South Wales, Australia
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