Neoadjuvant chemotherapy in patients with stages II and III breast cancer

Background Neoadjuvant chemotherapy has been used as a primary treatment for locally advanced or inflammatory breast cancer, and recently extended to operable breast cancer. However, only a few studies have published data concerning the outcomes of patients with stages II and III breast cancer after neoadjuvant chemotherapy. Methods This study retrospectively investigated the clinical value of neoadjuvant chemotherapy for patients with stages II and III breast cancer. The patients in Group 1 （n=54） were treated with neoadjuvant chemotherapy, followed by definitive surgery and adjuvant therapy. The patients in Group 2 （n=-43） initially received definitive surgery, followed by adjuvant chemotherapy and other therapies. The operability rates for breast conservation and dermatoplasty were observed in Group 1 after neoadjuvant chemotherapy. After follow-up, the recurrence and overall and disease-free survival rates of the two groups were analyzed. Results Neoadjuvant chemotherapy increased the operability rates for breast conservation from 17.1% to 40.0% in stage II （P=0.034） and 0% to 12.6% in stage III （P=0.016）, and decreased the dermatoplasty rates from 17.1% to 2.8% in stage II （P=0.046） and 28.1% to 8.1% in stage Ill （P=0.026）. After a median follow-up of 46.8 months, there were 11 deaths and 13 recurrences in Group 1, and 15 deaths and 19 recurrences in Group 2. The overall and disease-free survival rates of stage III disease were significantly higher in Group 1 than in Group 2 （68.4% vs 31.2%, P=0.028, and 63.2% vs 25.0%, P=0.024, respectively）. There were no significant differences in the overall and disease-free survival rates of stage II disease for Group 1 compared with Group 2 （85.7% vs 85.2%, P=0.953, and 80.6% vs 74.1%, P=0.400, respectively）. Conclusions Neoadjuvant chemotherapy resulted in increased operability for breast conservation and decreased dermatoplasty. Neoadjuvant chemotherapy exhibited better recurrence control, and overall and disease-free survival rates in stage III disease. However, neoadjuvant chemotherapy did not confer greater survival on stage II disease.     

一项单中心的25例男性乳腺癌临床病理特点总结(英文)

目的根据单中心资料对男性乳腺癌患者的临床病理学特点及疾病预后进行分析。方法对2000年1月1日至2011年4月30日在中山大学肿瘤防治中心接受治疗的25名男性乳腺癌患者病例资料进行分析,中位随访时间为51个月(1~90个月)。纳入分析的参数包括肿瘤家族史、年龄、吸烟、酗酒、肿瘤部位、肿瘤象限、病理类型、雌激素受体、孕激素受体、表皮生长因子受体-2、Ki-67、血管内皮生长因子、P53蛋白、新辅助化疗、手术方式、辅助化疗、辅助放疗、辅助内分泌治疗、肿瘤大小、淋巴结转移、远处转移及肿瘤TNM分期。通过单因素分析评价这些参数对患者生存的影响。结果患者的5年生存率为66.5%,新辅助化疗、肿瘤大小、淋巴结转移、远处转移及TNM分期是影响患者生存的独立预后因素,接受了辅助内分泌治疗的患者有更好的预后(P=0.086)。接受新辅助化疗的患者预后差于不接受新辅助化疗的患者(P=0.000),早期患者预后好于晚期患者(P=0.000)。结论男性乳腺癌患者5年生存率为66.5%,新辅助化疗、肿瘤大小、淋巴结转移、远处转移及TNM分期是影响患者生存的独立预后因素。     

新辅助化疗TEC方案治疗晚期乳腺癌的临床观察

目的探讨新辅助化疗TEC方案对晚期乳腺癌的治疗效果。方法对28例Ⅲ、Ⅳ期乳腺癌患者行TEE新辅助化疗方案（多西紫杉醇75mg／m^2静脉滴入d1,表阿霉索60mg／m^2静脉滴入d1,环磷酰胺500mg／m^2静脉注射d1）,21d为1周期,共2周期,并与未行任何术前治疗可手术的24例Ⅲa期患者作对比分析。结果新辅助化疗组的总有效率为82．14％（23／28）,有64．28％（18／28）的患者分期降低。新辅助化疗组的平均无病生存期为49．6个月,明显高于未行化疗组的40．2个月（P〈0．05）,新辅助化疗组的50个月随访期无病生存率为32．14％,对照组为29．16％,差异无统计学意义。结论新辅助化疗能降低晚期乳腺癌患者的分期,为手术创造最佳机会,减少或延缓肿瘤的复发、转移,并可延长晚期乳腺癌患者的无病生存期。     

托瑞米芬治疗Luminal型年轻乳腺癌疗效和安全性的回顾性研究

【目的】 探讨托瑞米芬治疗年轻(≤35岁)可手术乳腺癌的疗效及安全性?【方法】 收集2002年1月至2007年10月诊治的绝经前年轻Luminal型乳腺癌的临床病理资料,使用他莫昔芬或托瑞米芬内分泌治疗共247例(分别为181例和66例)?采用Kaplan-Meier法和Log-rank检验分析两组生存情况,COX比率风险回归模型进行多因素分析?【结果】 托瑞米芬组和他莫昔芬组中位年龄分别是33岁和32岁?全组中位随访77.1月,托瑞米芬组和他莫昔芬组的6年无病生存时间为77.0%和79.2%,6年总生存率分别为88.4%和87.4%,两组无病生存时间和总生存时间均无统计学差异(总生存时间, HR = 0.794; P = 0.589; 无病生存时间, HR = 1.132; P = 0.686)?托瑞米芬组和他莫昔芬组的毒性反应无统计学差异?单因素分析显示,肿块大?组织学分级高?分期晚和HER2过表达和患者无病生存时间较短相关;PR阴性患者可能无病生存时间短(P = 0.056);脉管癌栓?淋巴结阳性和分期晚的患者总生存时间较短?多因素分析提示HER2阳性和PR阴性预示年轻Luminal型可手术乳腺癌患者无病生存时间较短;分期较晚是该型患者的总生存时间差的预后因素? 【结论】 托瑞米芬治疗年轻绝经前Luminal型可手术乳腺癌疗效和他莫昔芬相似,安全性好?但仍需要更大规模的研究进一步来证实?     

新辅助化疗后腋窝阳性淋巴结病理完全缓解对乳腺癌预后的影响

目的 比较腋窝淋巴结病理完全缓解(pCR)与腋窝淋巴结癌残留乳腺癌患者的生存差异.方法 回顾性分析376例接受新辅助化疗的腋窝淋巴结阳性乳腺癌患者的临床与病理资料.结果 中位随访时间24个月(5～100个月),腋窝淋巴结pCR率30.9%(116/376).腋窝淋巴结pCR与残留患者的3年无远位转移生存(DDFS)率分别为91.7%与78.8%,生存曲线比较差异有统计学意义(Log-rank检验 P=0.016).多因素分析显示残留患者DDFS风险是pCR患者的2.14倍(P=0.047);两组无病生存(DFS)曲线比较差异无统计学意义(P>0.05).残留组中淋巴结转移数≤3枚与≥4枚患者的DDFS生存曲线比较差异有统计学意义(P=0.001).结论 腋窝淋巴结阳性乳腺癌新辅助化疗后的腋窝淋巴结状态与无远位转移生存相关.

Abstract：

Objective To compare the distant disease-free survival between breast cancer patients with nodal pathological complete response (pCR) and those with nodal residual disease (RD) after neoadjuvant chemotherapy.Methods The clinical and pathological data of 376 needle biopsy proved node positive breast cancer patients undergoing neoadjuvant chemotherapy were retrospectively analyzed. ResultsThe median follow-up time was 24 months(range: 5-100). The pCR rate of axillary lymph node was 30.9%. And the three-year distant disease-free survival (DDFS) rates were 91.7% and 78.8% in the patients with axillary lymph node pCR and RD respectively. According to the Log-rank test, there were significant differences in survival curves (P=0.016). Multivariate analysis showed that the relative risk of DDFS for patients with RD was 2.14 folds of than that of the pCR group (P=0.047). No significant difference existed between the disease-free survival (DFS) curve in two groups. DDFS had significant differences between the patients with the number of lymph node metastasis ≤ 3 and ≥ 4 in the RD group (P=0.001).Conclusion The distant disease-free survival of node positive breast cancer is associated with the status of axillary lymph node after neoadjuvant chemotherapy.     

乳腺癌组织中Her2 TopoⅡ表达水平与新辅助化疗近远期疗效的关系研究

目的：探讨乳腺癌组织人类表皮生长因子受体2（Her2）、拓扑异构酶Ⅱ（TopoⅡ）表达水平与新辅助化疗近远期疗效的关系。方法：选取96例TEC方案新辅助化疗乳腺癌患者,化疗前穿刺活检术与化疗后手术采集病灶组织,采用免疫组化法检测组织Her2、TopoⅡ表达水平。结果：新辅助化疗后,Her2、TopoⅡ阳性表达率（60.42%、80.21%）较化疗前（88.54%、92.71%）显著降低（P〈0.05）;且有效组的Her2、TopoⅡ阳性表达率显著低于无效组,阴性表达率显著高于无效组,两组比较差异具有统计学意义（P〈0.05）,Her2、TopoⅡ阴性组的化疗有效率与1、3、5年生存率均显著高于阳性组,两组比较差异性显著（P〈0.05）。结论：新辅助化疗通过降低乳腺癌组织Her2、TopoⅡ阳性表达以增强患者的化疗效果,且Her2、TopoⅡ表达水平在近远期疗效的预测中具有重要的临床价值。     

新辅助化疗对ⅡB期乳腺癌的疗效对比研究

目的研究新辅助化疗治疗ⅡB期乳腺癌的临床作用。方法选取2002年1月至2004年11月ⅡB期女性乳腺癌330例,全部单侧患病,随机分成2组。新辅助化疗组152例（年龄32～73岁,平均42．6岁;左侧78例,右侧74例）,给予紫杉类、蒽环类为主的联合化疗,每2个周期后评价疗效,4个周期后实施手术。非新辅助化疗组178例（年龄31～72岁,平均41．4岁;左侧98例,右侧80例）。2组均根据肿瘤大小,行保乳手术或行乳腺癌改良根治术。根据“国际抗癌联合会标准”对乳腺癌原发病灶和区域淋巴结新辅助化疗后的临床缓解情况进行评估。结果新辅助化疗组总有效率为91．45％,保乳比例为44．70％,对照组保乳比例为21．90％。新辅助化疗组的3年和5年生存率分别为96．05％和75．00％,显著高于非新辅助化疗组。结论新辅助化疗可有效的降低ⅡB期乳腺癌临床分期,提高保乳的可行性和术后生存率。     

ⅢA期乳腺癌新辅助化疗后保乳手术26例报告

目的评价ⅢA期乳腺癌经新辅助化疗后行保留乳房手术的疗效和美容效果,探讨ⅢA期乳腺癌保乳治疗的可行性。方法 36例女性病人经粗针穿刺活检确诊为乳腺癌,TNM分期为ⅢA期,病人有强烈保乳愿望。新辅助化疗方案（TAC方案）：多西他赛75 mg/m2ivgtt d1,表柔比星60 mg/m2iv d1,环磷酰胺500 mg/m2iv d1,每3周重复。先用TAC方案化疗3周期,对完全缓解（CR）、部分缓解（PR）患者行肿瘤扩大切除及腋窝淋巴结清扫术,术后辅以三维适形放疗、全身化疗及内分泌治疗。观察新辅助化疗疗效、乳房美容效果、有无局部复发及远处转移、无病生存时间。结果新辅助化疗有效率86.1%（31/36）,26例成功施行保乳手术,保乳率72.2%（26/36）。保乳术患者随访时间42~77月,平均52.2月。乳房美容效果评价优良率61.5%（16/26）,局部复发1例、远处转移2例,中位无病生存时间47.3月。结论ⅢA期乳腺癌经过新辅助化疗降低临床分期后,实施保留乳房手术是可行的。     

乳腺癌对吡柔比星和表柔比星的药物敏感性及有效性的对比观察

目的 通过检测原代乳腺癌细胞对吡柔比星和表柔比星的药物敏感性,来综合评估吡柔比星用于乳腺癌辅助化疗的可行性.方法 收集2008年1月至2009年1月天津医科大学附属肿瘤医院乳腺科就诊的129例原发性乳腺癌患者的新鲜肿组织,采用胶原凝胶体包埋肿瘤细胞原代培养法培养原代乳腺痛细胞,检测其对吡柔比星和表柔比星的敏感性;并同时将139例Ⅱ b～Ⅲ C期原发性乳腺癌患者随机分为两组,分别采用TAC(多西他赛+吡柔比星+环磷酰胺)方案及TEC(多西他赛+表柔比星+环磷酰胺)方案进行4～6周期的新辅助化疗,并观察肿瘤大小、腋窝淋巴结的变化及毒副反应.通过回顾性分析2003至2006年收治的1241例乳腺癌患者的病例资料,根据患者所应用的化疗方案,将其分为CAF(环磷酰胺+吡柔比星+氟尿嘧啶)组及CEF(环磷酰胺+表柔比星+氟尿嘧啶)组,比较两组患者的远期预后.结果 原代乳腺癌细胞对吡柔比星和表柔比星的药物敏感性差异无统计学意义(P=0.743);新辅助化疗总有效率为87.8%,TAC组和TEC组的总有效率、病理完全缓解率、临床完全缓解率、临床部分缓解率以及病情稳定率差异均无统计学意义(均P>0.05).化疗过程中两组白细胞下降、血小板减少、便秘、心脏毒性、肝肾功能异常方面差异均无统计学意义(均P>0.05).仅TAC组胃肠道反应(恶心或呕吐)为46.5%,低于TEC组的66.2%(P=0.019):CAF组与CEF组5年无病生存率分别为79%、78%,5年总生存率分别为85%、82%,两组患者的无病生存期及总生存期差异均无统计学意义(均P>0.05).结论 吡柔比星及表柔比星在药物敏感性检测方面、乳腺癌新辅助化疗疗效和毒副反应方面、乳腺癌治疗的远期疗效方面差异均无统计学意义,吡柔比星可以与表柔比星一样用于乳腺癌辅助化疗的一线药物.

Abstract：

Objective To compare the chemosensitivity of pirarubicin(THP)and epimbicin (EPI)in primary breast cancer(PBC)cells so as to examine tIleir difierential chemosensitivity to THP and EPI by CD-DST(collagen gel droplet embedded culture-drug sensitivity test)system;To detect the differences in the short.term clinical efficacy and side effects between TAC(docetaxel+pirarubicin+cyclophosphamide)and IEC(docetaxel + epirubicin + cyclophosphamide)as the neoadjuvant chemotherapy regimens and the long-term clinical efficacy of CAF ( cyclophosphamide+pirarubicin+fluoroumcil)and CEF(cyclophosphamide+epirubicin+fluorouracil)as the chemotherapy regimens in breast callcer:To evaluate the feasibility of THP as an adjuvant chemotherapeutic regimen in the treatment of breast cancer.Methods From January 2008 to January 2009,a total of 129 fresh breast cancer samples were collected. The differential chemosensitivity of cultured PBC cells to THP and EPI was measured by CD-DST test. And 139 cases of PBC patients in II b-Ⅲ c phase were randomly divided into two groups: TAC and TEC groups. After 4-6 cycles of neoadjuvant chemotherapy, the primary lesion, axiltary lymph nodes and side effects were assessed; The clinical data and survival status of 1241 cases of PBC patients treated at our hospital from 2003 to 2006 were collected and divided into CAF and CEF groups according to their chemotherapeutic regimens. Long-term prognosis was compared between two groups. Results There was no significant difference of chemosensitivity between THP and EPI in PBC cells ( P = 0. 743 ) ; The overall response rate (RR) of neoadjuvant chemotherapy was 87.8% ; there was no significant difference between TAC and TEC groups (P > 0.05 ). No significant differences existed between two groups in such side effects as leukopenia, thrombocytopenia, constipation, cardiotoxity and hepatorenal dysfunction (P > 0. 05 ). The gastrointestinal reactions of nausea and vomiting was less frequent in the TAC group than that in the TEC group (46. 5% vs 66. 2% , P =0. 019) ; There was no significant difference in 5-year disease-free survival rate (79% vs 78% ) and overall survival rate between two groups (85% vs 82%, P >0. 05). Conclusions There were no significant differences in chemosensitivity, clinical efficacy of neoadjuvant chemotherapy, side effects or long-term efficacy between THP and EPI. Both pirarubicin and epirubicin may be used as conventional chemotherapy in breast cancer.     

多西他赛联合表柔比星新辅助治疗晚期乳腺癌的疗效分析

目的 分析多西他赛(DOC)联合表柔比星(EPI)新辅助治疗晚期乳腺癌的临床疗效和毒性反应,以及预后评价.方法 选择我院治疗的84例晚期乳腺癌患者,按化疗方案不同分为研究组41例,应用DOC联合EPI新辅助化疗方案;对照组43例,应用紫杉(PTX)联合EPI化疗方案.以21d为一个疗程,治疗3～4个疗程后分析临床疗效及毒性反应.随访1年,评价预后指标,即复发率及生存率.结果 研究组的总有效率(OR)为90.24％,高于对照组的79.06％(P=0.030 1);研究组的临床完全缓解率(cCR)、病理完全缓解率(pCR)与对照组比较差异无统计学意义(P＞0.05).研究组的胃肠反应、白细胞下降、外周静脉炎发生率较对照组低(P＜0.05),过敏性皮疹及脱发发生率与对照组比较差异无统计学意义(P＞0.05).研究组的复发率及生存率较对照组明显改善,分别为12.19％ vs 18.60％(P=0.028 7)、17.07％(7/41)vs 9.30％(4/43)(P=0.003 7).结论 DOC联合EPI新辅助治疗晚期乳腺癌的临床疗效显著,毒性反应较少,预后改善,是晚期乳腺癌新辅助化疗的有效方案.