乳腺癌的内科治疗ppt课件.ppt
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1、l乳腺癌是女性最常见的肿瘤,女性肿瘤死因第二位。 美国85岁以下女性每9人中1人患乳腺癌。 l乳腺癌是一种全身性疾病, 在乳腺癌早期可能存在着微小转移灶,除0或1期较早的病人以外,几乎各期病人都在一定时期需要内科治疗。l内科治疗主要包括化疗和内分泌治疗,单克隆抗体等。l 乳癌的内科治疗在减少复发,控制症状,提高生存质量,延长生存等方面都已经取得了很大的进步。乳腺癌综合治疗在成人实体瘤中最具有临床意义。 pt age Therapy Reduction in Reduction in annual odds annual odds of recurrence (%) of death(%) -
2、50 TAM5y /none 45+/-8 32+/-10 50-59 TAM5y/none 37+/-6 11+/-860-69 TAM5y/none 54+/-5 33+/-6 40 poly-chemo/none 37+/-7 27+/-840-49 poly-chemo/none 35+/-5 27+/-550-59 poly-chemo/none 22+/-4 14+/-460-69 poly-chemo/none 18+/-4 8+/-4EBCTCG 1995 Lancet 1998 每年减少死亡率每年减少死亡率- .50 .30 .10-无治疗预计无治疗预计10年死亡率年死亡率7
3、0%(多个(多个LN+) 23 (70 57) 13(70 57) 4(70 66)30%(中危,(中危,LN-) 12 (30 18) 7(30 23) 2(30 28)10%(肿瘤(肿瘤 1 cm,无论病人有无绝经,淋巴结有无转移,以及无论病人有无绝经,淋巴结有无转移,以及激素受体状况,都应该接受辅助化疗。激素受体状况,都应该接受辅助化疗。2. 对于肿瘤对于肿瘤 50y all TAM /=10N+ 785 5.1yrs No differItalian trial /= 4 N+ 382 4.3yr No differJapanese trial /=10N+ 97 4yrs No di
4、fferPEGASE 01 /=10N+ 314 3.3yrs increased DFS (17% vs 55%)37th ASCO B-22 2305 women were randomized to receive either standard doses of doxorubicin and cyclophosphamide (60/600 mg/m2 x 4) or intensified cyclophosphamide (1200 mg/m2 x 2) or intensified and increased cyclophosphamide (1200 mg/m2 x 4).
5、 Neither disease-free survival nor overall survival was improved with any of the higher or more intense doses.toxicity was significantly increased with the higher doses.The NSABP conducted 2 studies:B-22 and B-25, patients with node-positive disease 4 doses of doxorubicin (60 mg/m2).l B-25 doubled t
6、he dose and dose intensity l CTX from 1200 mg/m2 x 4 l to 2400 mg/m2 x 2 l then to 2400 mg/m2 x 4lAgain, there was no apparent benefit lConclusion: If a 4-fold increase in dose and dose intensity for CTX does not improve outcome, it could nonetheless remain possible that dose escalations beyond this
7、 level are beneficial. However, these studies do not support this concept and suggest that outside of appropriate clinical trials, doses beyond 600 mg/m2 are not justifiable. lOver 400 women with = 4 LN+ lRegimen: 4 cycles of doxorubicin and 8 of CMFl less dose-dense arm: 2 cycles of CMF followed by
8、 1 cycle of doxorubicin (CCACCACCACCA), l more dose-dense arm: all 4 cycles of doxorubicin followed by all 8 of CMF (AAAACCCCCCCC).l At 10-year follow-up, the latter remains significantly superior .lA randomized trial of alternating versus sequential therapy using single-agent doxorubicin and CMF th
9、at was conducted in Milan.l This trial enrolled patients with 0-3 positive nodes and is closed but not yet reported. lconcurrent (less dose-dense) versus lsequential (more dose-dense) doxorubicin and cyclophosphamide. lA critical trial, completed but not reported, in which 2005 patients were randoml
10、y assigned to treatment every third week (less dose-dense) or every other week (more dose-dense). MDACC phase III study: 病理CR率RegimenGroup 1 Taxol 80mg/m2 qw12FAC 4 SurgeryGroup 2 Taxol 225mg/m2 civ 24hrs q3w 4FAC 4SurgeryResults weekly every 3weeksLN- (n = 53) 31% 19%LN+ (n = 72) 31% 11%37th ASCO 中
11、位生存时间中位生存时间1. 雌激素受体状态:雌激素受体状态: ER + 28 moth ER - 14 moth 2. 首次复发部位:首次复发部位: 1 28 moth 1 15 moth 肝脏转移肝脏转移 10 moth 肺转移肺转移 14 moth 无肝无肝/肺转移肺转移 25moth预后因素对生存的影响 中位生存时间中位生存时间3. 过去治疗:过去治疗: 辅助性化疗辅助性化疗 17 月月 无辅助化疗无辅助化疗 26 月月4. 无复发间期的长短:无复发间期的长短: 60 月月 35 月月 (DFI) 24-60 月月 27 月月 12-24 月月 19 月月 1yrl 难治性 ER-/PR
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