Pub Date : 2019-02-15DOI: 10.1158/1538-7445.sabcs18-p3-11-08
T. Abdel-Fatah, G. Ball, I. Ellis, A. Chan, Sy Chan
{"title":"Abstract P3-11-08: Sperm associated antigen 5 (SPAG5) predicts pathological complete response (pCR) and distant relapse risk to HER2 targeting agents and anthracycline based chemotherapy in HER2 positive (HER2+) breast cancer (BC)","authors":"T. Abdel-Fatah, G. Ball, I. Ellis, A. Chan, Sy Chan","doi":"10.1158/1538-7445.sabcs18-p3-11-08","DOIUrl":"https://doi.org/10.1158/1538-7445.sabcs18-p3-11-08","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"379 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84958129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.SABCS18-P4-06-10
C. Fremd, N. Halama, R. Wirtz, I. Zoernig, H. Sinn, Z. Varga, M. Feisst, T. Deutsch, F. Schuetz, A. Schneeweiss, D. Jaeger, M. Wallwiener
{"title":"Abstract P4-06-10: Immune related gene expression to explore immue escape in primary to metastatic breast cancer transition","authors":"C. Fremd, N. Halama, R. Wirtz, I. Zoernig, H. Sinn, Z. Varga, M. Feisst, T. Deutsch, F. Schuetz, A. Schneeweiss, D. Jaeger, M. Wallwiener","doi":"10.1158/1538-7445.SABCS18-P4-06-10","DOIUrl":"https://doi.org/10.1158/1538-7445.SABCS18-P4-06-10","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85103414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.SABCS18-P2-08-29
Jm Kim, H. Choi, I. Kim, J. Ryu, Jh Yu, J. Lee, S. Kim, S. Nam, S. Lee
Background: There are many factors that might contribute to the delay of surgery in patients with breast cancer. Previous studies investigate the influence of delay of surgery, but they reported inconsistent results. The purpose of this study was to evaluate the impact of time of surgery on prognosis of breast cancer. Methods: We performed a retrospective review of the patients with breast cancer, who received surgery between 1992 and 2009, by using data from Korea Breast Cancer Society Registry. Kaplan-Meier survival analysis and Cox regression model were used to evaluate the impact of time to surgery in breast cancer and subgroup analyses were performed for each disease stage and molecular subtype. Result: A total 14727 patients were included for analysis. Delay of surgery more than 31 days was associated with worse survival for breast cancer [hazard ratio (HR) = 2.16; 95% confidence interval (CI), 1.936-2.408, p Conclusion: Surgical delay of more than 31 days were independent risk factors for worse outcome of breast cancer in each molecular subtype and breast cancer group except stage 0 and I. Although preoperative evaluation is required, surgical delay should be shortened to enhance survival of breast cancer, especially in patients with tumor size more than 2cm or presence of lymph node metastasis. Citation Format: Kim J-M, Choi HJ, Kim I, Ryu JM, Yu J, Lee JE, Kim SW, Nam SJ, Lee SK. The impact of time interval between diagnosis and surgery in each type and stage of breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-08-29.
背景:有许多因素可能导致乳腺癌患者延迟手术。先前的研究调查了延迟手术的影响,但他们报告了不一致的结果。本研究的目的是评估手术时间对乳腺癌预后的影响。方法:我们使用韩国乳腺癌协会登记处的数据,对1992年至2009年接受手术的乳腺癌患者进行回顾性分析。采用Kaplan-Meier生存分析和Cox回归模型评估乳腺癌手术时间的影响,并对每个疾病分期和分子亚型进行亚组分析。结果:共纳入14727例患者进行分析。延迟手术超过31天与乳腺癌的生存差相关[风险比(HR) = 2.16;结论:手术延迟超过31天是除0期和i期外各分子亚型和乳腺癌组预后较差的独立危险因素,虽然术前需要评估,但应缩短手术延迟时间以提高乳腺癌的生存率,特别是肿瘤大小大于2cm或存在淋巴结转移的患者。引用本文:Kim J- m, Choi HJ, Kim I, Ryu JM, Yu J, Lee JE, Kim SW, Nam SJ, Lee SK.诊断与手术间隔时间对乳腺癌各类型和分期的影响[摘要]。2018年圣安东尼奥乳腺癌研讨会论文集;2018年12月4-8日;费城(PA): AACR;中国癌症杂志,2019;79(4增刊):P2-08-29。
{"title":"Abstract P2-08-29: The impact of time interval between diagnosis and surgery in each type and stage of breast cancer","authors":"Jm Kim, H. Choi, I. Kim, J. Ryu, Jh Yu, J. Lee, S. Kim, S. Nam, S. Lee","doi":"10.1158/1538-7445.SABCS18-P2-08-29","DOIUrl":"https://doi.org/10.1158/1538-7445.SABCS18-P2-08-29","url":null,"abstract":"Background: There are many factors that might contribute to the delay of surgery in patients with breast cancer. Previous studies investigate the influence of delay of surgery, but they reported inconsistent results. The purpose of this study was to evaluate the impact of time of surgery on prognosis of breast cancer. Methods: We performed a retrospective review of the patients with breast cancer, who received surgery between 1992 and 2009, by using data from Korea Breast Cancer Society Registry. Kaplan-Meier survival analysis and Cox regression model were used to evaluate the impact of time to surgery in breast cancer and subgroup analyses were performed for each disease stage and molecular subtype. Result: A total 14727 patients were included for analysis. Delay of surgery more than 31 days was associated with worse survival for breast cancer [hazard ratio (HR) = 2.16; 95% confidence interval (CI), 1.936-2.408, p Conclusion: Surgical delay of more than 31 days were independent risk factors for worse outcome of breast cancer in each molecular subtype and breast cancer group except stage 0 and I. Although preoperative evaluation is required, surgical delay should be shortened to enhance survival of breast cancer, especially in patients with tumor size more than 2cm or presence of lymph node metastasis. Citation Format: Kim J-M, Choi HJ, Kim I, Ryu JM, Yu J, Lee JE, Kim SW, Nam SJ, Lee SK. The impact of time interval between diagnosis and surgery in each type and stage of breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-08-29.","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"107 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85577788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.SABCS18-P6-02-13
C-S Huang, J. Fann, H-H Chen, Gene C. Hsu, Minnie Ho, S-C Chen, Y. Chen, S.T. Chen, C-Y Chen, S. Sheen-Chen, H. Chang, D-C Yeh, M. Chao, H. Yeh, L. Cheng, D. Chen, Y. Chang, K. Chang
{"title":"Abstract P6-02-13: Withdrawn","authors":"C-S Huang, J. Fann, H-H Chen, Gene C. Hsu, Minnie Ho, S-C Chen, Y. Chen, S.T. Chen, C-Y Chen, S. Sheen-Chen, H. Chang, D-C Yeh, M. Chao, H. Yeh, L. Cheng, D. Chen, Y. Chang, K. Chang","doi":"10.1158/1538-7445.SABCS18-P6-02-13","DOIUrl":"https://doi.org/10.1158/1538-7445.SABCS18-P6-02-13","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85658085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.sabcs18-p4-12-03
S. Bella, A. Ferrari, Mc Baiud, M. Cortés, Jr Llugdar, M. Vigil
{"title":"Abstract P4-12-03: Prospective study: Impact of adjuvant chemotherapy with anthracyclines and taxanes in cognitive skills","authors":"S. Bella, A. Ferrari, Mc Baiud, M. Cortés, Jr Llugdar, M. Vigil","doi":"10.1158/1538-7445.sabcs18-p4-12-03","DOIUrl":"https://doi.org/10.1158/1538-7445.sabcs18-p4-12-03","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85724785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.sabcs18-p1-07-02
M. D. Nicola, T. Volpari, G. Fucà, S. R. Cordoba, F. D. Santis, O. Rondinone, S. Faraci, F. Ferris, C. Puricelli, L. Castagnoli, R. Marullo, L. Cerchietti, S. Pupa
{"title":"Abstract P1-07-02: Withdrawn","authors":"M. D. Nicola, T. Volpari, G. Fucà, S. R. Cordoba, F. D. Santis, O. Rondinone, S. Faraci, F. Ferris, C. Puricelli, L. Castagnoli, R. Marullo, L. Cerchietti, S. Pupa","doi":"10.1158/1538-7445.sabcs18-p1-07-02","DOIUrl":"https://doi.org/10.1158/1538-7445.sabcs18-p1-07-02","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"130 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85768251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.SABCS18-P6-18-31
S. Adams, E. Hamilton, P. Ott, D. Cho, K. Kalinsky, P. LoRusso, M. Will, Vanessa Huels, B. Benson, C. Murias, H. Arkenau
Background: Probody™ therapeutics are novel, fully recombinant antibody prodrugs designed to remain relatively inactive in healthy tissue and to be specifically activated by proteases in the tumor microenvironment. In this way, Probody therapeutics may broaden the therapeutic window for effective but potentially toxic anticancer agents. CX-072 is a Probody therapeutic directed against programmed death-ligand 1 (PD-L1) for the treatment of cancer patients. In a first-in-human, open-label, multicenter, dose-escalation, 3+3 design, phase 1-2 study, PROCLAIM-CX-072 (PRObody CLinical Assessment In Man) (NCT03013491), 22 patients were enrolled in the phase 1 dose escalation portion. Twenty patients were evaluable per RECIST v1.1. Three patients had confirmed partial response (15%), including a 39-year-old woman with stage IV triple negative breast cancer (TNBC) treated with 10 mg/kg CX-072 monotherapy whose disease had progressed on one previous line of chemotherapy for metastatic disease. Metastatic sites included extensive nodal disease and skin/chest wall lesions. The tumor was negative for PD-L1 expression, was microsatellite stable, and had a low tumor mutational burden (4 mutations/megabase). Positive results from the phase 1 study suggest that additional exploration of treatment with CX-072 monotherapy in the TNBC patient population is warranted. Dose expansion trial design: The phase 2 dose expansion part of the PROCLAIM-CX-072 study will include enrollment of TNBC patients with skin metastases. Key inclusion criteria for patients in the TNBC cohort are as follows: naive to immunotherapy (PD-1/PD-L1 and CTLA-4 inhibitors), approved immune checkpoint inhibitor agents not available, histologically confirmed triple negative (estrogen receptor–, progesterone receptor–, and human epidermal growth factor receptor-2–negative cancer per ASCO-CAP guidelines), previously treated with 1 to 3 systemic chemotherapy regimens, and locally advanced and recurrent skin or subcutaneous metastases not suitable for surgical resection or radiotherapy. Patients will receive doses of 10 mg/kg CX-072 intravenously every 2 weeks. Efficacy will be evaluated using RECIST v1.1 and immune-related RECIST criteria. Safety and tolerability will be assessed based on the incidence and severity of adverse events (categorized by NCI CTCAE criteria, v4.03) and relationship to study drug. Other analyses will include pharmacokinetics, incidence of anti-drug antibodies against CX-072, exploratory analysis for immune response, and CX-072 activation in the tumor. PROBODY is a trademark of CytomX Therapeutics, Inc. Citation Format: Adams S, Hamilton E, Ott PA, Cho D, Kalinsky K, LoRusso P, Will M, Huels V, Benson B, Murias C, Arkenau H-T. PROCLAIM-CX-072: Monotherapy for advanced triple negative breast cancer with skin metastases in a phase 1-2 trial of the PD-L1 probody therapeutic CX-072 [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Anto
背景:Probody™疗法是一种新型的、完全重组的抗体前药,在健康组织中保持相对失活,并在肿瘤微环境中被蛋白酶特异性激活。通过这种方式,Probody疗法可能会拓宽有效但有潜在毒性的抗癌药物的治疗窗口。CX-072是一种针对程序性死亡配体1 (PD-L1)的Probody治疗药物,用于治疗癌症患者。在一项首次人体、开放标签、多中心、剂量递增、3+3设计、1-2期研究中,PROCLAIM-CX-072(人体PRObody临床评估)(NCT03013491), 22名患者入组了1期剂量递增部分。20例患者可根据RECIST v1.1进行评估。3例患者证实部分缓解(15%),其中包括一名接受10mg /kg CX-072单药治疗的39岁IV期三阴性乳腺癌(TNBC)女性,她的疾病在之前的一次转移性疾病化疗中进展。转移部位包括广泛的淋巴结疾病和皮肤/胸壁病变。肿瘤PD-L1表达阴性,微卫星稳定,肿瘤突变负荷低(4个突变/兆基)。i期研究的积极结果表明,CX-072单药治疗TNBC患者群体的进一步探索是有必要的。剂量扩大试验设计:PROCLAIM-CX-072研究的2期剂量扩大部分将纳入皮肤转移的TNBC患者。TNBC队列患者的主要入选标准如下:首次接受免疫治疗(PD-1/PD-L1和CTLA-4抑制剂),未获批准的免疫检查点抑制剂,组织学证实的三阴性(雌激素受体,孕激素受体和人表皮生长因子受体-2阴性癌症(ASCO-CAP指南),先前接受过1至3次全身化疗方案,局部晚期和复发性皮肤或皮下转移不适合手术切除或放疗。患者将每2周静脉注射10mg /kg CX-072。疗效将使用RECIST v1.1和免疫相关的RECIST标准进行评估。安全性和耐受性将根据不良事件的发生率和严重程度(根据NCI CTCAE标准,v4.03分类)以及与研究药物的关系进行评估。其他分析将包括药代动力学、抗CX-072抗体的发生率、免疫反应的探索性分析以及CX-072在肿瘤中的活化。PROBODY是CytomX Therapeutics, Inc.的商标。引用格式:Adams S, Hamilton E, Ott PA, Cho D, Kalinsky K, LoRusso P, Will M, Huels V, Benson B, Murias C, Arkenau H-T。PROCLAIM-CX-072: PD-L1抗体治疗CX-072的1-2期试验中,单药治疗晚期三阴性乳腺癌伴皮肤转移[摘要]。2018年圣安东尼奥乳腺癌研讨会论文集;2018年12月4-8日;费城(PA): AACR;癌症杂志,2019;79(4增刊):P6-18-31。
{"title":"Abstract P6-18-31: PROCLAIM-CX-072: Monotherapy for advanced triple negative breast cancer with skin metastases in a phase 1-2 trial of the PD-L1 probody therapeutic CX-072","authors":"S. Adams, E. Hamilton, P. Ott, D. Cho, K. Kalinsky, P. LoRusso, M. Will, Vanessa Huels, B. Benson, C. Murias, H. Arkenau","doi":"10.1158/1538-7445.SABCS18-P6-18-31","DOIUrl":"https://doi.org/10.1158/1538-7445.SABCS18-P6-18-31","url":null,"abstract":"Background: Probody™ therapeutics are novel, fully recombinant antibody prodrugs designed to remain relatively inactive in healthy tissue and to be specifically activated by proteases in the tumor microenvironment. In this way, Probody therapeutics may broaden the therapeutic window for effective but potentially toxic anticancer agents. CX-072 is a Probody therapeutic directed against programmed death-ligand 1 (PD-L1) for the treatment of cancer patients. In a first-in-human, open-label, multicenter, dose-escalation, 3+3 design, phase 1-2 study, PROCLAIM-CX-072 (PRObody CLinical Assessment In Man) (NCT03013491), 22 patients were enrolled in the phase 1 dose escalation portion. Twenty patients were evaluable per RECIST v1.1. Three patients had confirmed partial response (15%), including a 39-year-old woman with stage IV triple negative breast cancer (TNBC) treated with 10 mg/kg CX-072 monotherapy whose disease had progressed on one previous line of chemotherapy for metastatic disease. Metastatic sites included extensive nodal disease and skin/chest wall lesions. The tumor was negative for PD-L1 expression, was microsatellite stable, and had a low tumor mutational burden (4 mutations/megabase). Positive results from the phase 1 study suggest that additional exploration of treatment with CX-072 monotherapy in the TNBC patient population is warranted. Dose expansion trial design: The phase 2 dose expansion part of the PROCLAIM-CX-072 study will include enrollment of TNBC patients with skin metastases. Key inclusion criteria for patients in the TNBC cohort are as follows: naive to immunotherapy (PD-1/PD-L1 and CTLA-4 inhibitors), approved immune checkpoint inhibitor agents not available, histologically confirmed triple negative (estrogen receptor–, progesterone receptor–, and human epidermal growth factor receptor-2–negative cancer per ASCO-CAP guidelines), previously treated with 1 to 3 systemic chemotherapy regimens, and locally advanced and recurrent skin or subcutaneous metastases not suitable for surgical resection or radiotherapy. Patients will receive doses of 10 mg/kg CX-072 intravenously every 2 weeks. Efficacy will be evaluated using RECIST v1.1 and immune-related RECIST criteria. Safety and tolerability will be assessed based on the incidence and severity of adverse events (categorized by NCI CTCAE criteria, v4.03) and relationship to study drug. Other analyses will include pharmacokinetics, incidence of anti-drug antibodies against CX-072, exploratory analysis for immune response, and CX-072 activation in the tumor. PROBODY is a trademark of CytomX Therapeutics, Inc. Citation Format: Adams S, Hamilton E, Ott PA, Cho D, Kalinsky K, LoRusso P, Will M, Huels V, Benson B, Murias C, Arkenau H-T. PROCLAIM-CX-072: Monotherapy for advanced triple negative breast cancer with skin metastases in a phase 1-2 trial of the PD-L1 probody therapeutic CX-072 [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Anto","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76661742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.sabcs18-p3-10-22
T. Treece, W. Audeh, F. Navarro, J. Wei
{"title":"Abstract P3-10-22: BluePrint molecular subtyping versus HER2 assessment by immunohistochemistry and FISH in the real-world diagnostic setting","authors":"T. Treece, W. Audeh, F. Navarro, J. Wei","doi":"10.1158/1538-7445.sabcs18-p3-10-22","DOIUrl":"https://doi.org/10.1158/1538-7445.sabcs18-p3-10-22","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76925206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.SABCS18-P1-09-02
K. Yao, J. Clifford, Shuwei Li, H. LaDuca, P. Hulick, Jianfeng Xu, Stephanie Gutierrez, M. Black
Background: Women newly diagnosed with primary breast cancer (PBC) often undergo multi-gene panel testing to determine their contralateral breast cancer (BC) risk and whether a contralateral prophylactic mastectomy is warranted. However, with the exception of BRCA1/2, gene-specific associations with contralateral or second PBC (SPBC) have not been established. Methods: The study sample was comprised of 83,278 women with BC referred to a single diagnostic laboratory for multi-gene panel testing. The frequency of pathogenic/likely pathogenic variants in clinically-actionable genes (CAG), including highly penetrant genes (HPG: BRCA1, BRCA2, TP53, PTEN) and moderately penetrant genes (MPG: ATM, CHEK2, PALB2, CDH1, NBN, NF1) was compared between women with a PBC and SPBC. Women with a SPBC 1 first or second degree relative with BC (62.2% vs. 60.8%; p=0.004) than PBC. Among women tested for all CAGs, 4,883 (8.1%) were carriers of pathogenic/likely pathogenic variants (11.1% SPBC vs. 7.8% PBC). CHEK2 was the most frequently mutated gene (3.4% SPBC vs. 2.3% PBC), followed by BRCA1 (2.7% SPBC vs.1.6% PBC), BRCA2 (2.2% SPBC vs. 1.8% PBC), and PALB2 (1.4% SPBC vs. 0.9% PBC). In fully adjusted models, women with SPBC were 1.38 times as likely (p= Citation Format: Yao K, Clifford J, Li S, LaDuca H, Hulick PJ, Xu J, Gutierrez S, Black MH. Prevalence of genetic mutations in patients with second primary breast cancers [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-09-02.
{"title":"Abstract P1-09-02: Prevalence of genetic mutations in patients with second primary breast cancers","authors":"K. Yao, J. Clifford, Shuwei Li, H. LaDuca, P. Hulick, Jianfeng Xu, Stephanie Gutierrez, M. Black","doi":"10.1158/1538-7445.SABCS18-P1-09-02","DOIUrl":"https://doi.org/10.1158/1538-7445.SABCS18-P1-09-02","url":null,"abstract":"Background: Women newly diagnosed with primary breast cancer (PBC) often undergo multi-gene panel testing to determine their contralateral breast cancer (BC) risk and whether a contralateral prophylactic mastectomy is warranted. However, with the exception of BRCA1/2, gene-specific associations with contralateral or second PBC (SPBC) have not been established. Methods: The study sample was comprised of 83,278 women with BC referred to a single diagnostic laboratory for multi-gene panel testing. The frequency of pathogenic/likely pathogenic variants in clinically-actionable genes (CAG), including highly penetrant genes (HPG: BRCA1, BRCA2, TP53, PTEN) and moderately penetrant genes (MPG: ATM, CHEK2, PALB2, CDH1, NBN, NF1) was compared between women with a PBC and SPBC. Women with a SPBC 1 first or second degree relative with BC (62.2% vs. 60.8%; p=0.004) than PBC. Among women tested for all CAGs, 4,883 (8.1%) were carriers of pathogenic/likely pathogenic variants (11.1% SPBC vs. 7.8% PBC). CHEK2 was the most frequently mutated gene (3.4% SPBC vs. 2.3% PBC), followed by BRCA1 (2.7% SPBC vs.1.6% PBC), BRCA2 (2.2% SPBC vs. 1.8% PBC), and PALB2 (1.4% SPBC vs. 0.9% PBC). In fully adjusted models, women with SPBC were 1.38 times as likely (p= Citation Format: Yao K, Clifford J, Li S, LaDuca H, Hulick PJ, Xu J, Gutierrez S, Black MH. Prevalence of genetic mutations in patients with second primary breast cancers [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-09-02.","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77228851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-15DOI: 10.1158/1538-7445.sabcs18-p3-08-17
R. Ruiz, Z. Morante, F. Namuche, D. Urrunaga, A. Aguilar, J. Schwarz, M. Leon, G. Ziegler, M. Gregor, H. Gómez
{"title":"Abstract P3-08-17: Evaluation of Oncotype DX testing and subsequent treatment choices in the Latin American setting","authors":"R. Ruiz, Z. Morante, F. Namuche, D. Urrunaga, A. Aguilar, J. Schwarz, M. Leon, G. Ziegler, M. Gregor, H. Gómez","doi":"10.1158/1538-7445.sabcs18-p3-08-17","DOIUrl":"https://doi.org/10.1158/1538-7445.sabcs18-p3-08-17","url":null,"abstract":"","PeriodicalId":20307,"journal":{"name":"Poster Session Abstracts","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80969400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}