HER2阳性EBC的应对策略.ppt

HER2阳性EBC的应对策略,Adjuvant CMF,Risk of recurrence,Bonadonna et al.BMJ 2005;330:217,1976,The CMF programme,CMF vs observation,C,cyclophosphamide;M,methotrexate;F,5-fluorouracil,First publication:Bonadonna et al.N Engl J Med 1976;294:405-410,Latest data,Risk of death,1976,Adjuvant tamoxifen,36%,Risk of recurrence,Risk of death,First publication:Lancet 1983;1:257-261,Br J Cancer 1988;57:608-611,Latest data,1983,NATO trial,Tamoxifen vs observation,Adjuvant anthracyclines,Risk of recurrence,First publication:Levine et al.J Clin Oncol 1998;16:2651-2658,Latest data,Levine et al.J Clin Oncol 2005;23:5166-5170,1998,NCIC MA.5,CEF vs CMF,C,cyclophosphamide;E,epirubicin;F,fluorouracil;M,methotrexate,Adjuvant taxanes,Risk of recurrence,Risk of death,1998,First publication:Henderson et al.Proc Am Soc Clin Oncol 1998;17:101a,abs 390A,CALGB 9344,ACP vs AC,17%,A,doxorubicin;C,cyclophosphamide;P,paclitaxel,Latest data,Henderson et al.J Clin Oncol 2003;21:976-983,Adjuvant aromatase inhibitors,Risk of recurrence,First publication:Baum et al.Breast Cancer Res Treat 2001;69:210,abs 8,2001,ATAC,Anastrozole vs tamoxifen,Howell et al.Lancet 2005;365:60-62,Latest data,Adjuvant Herceptin,36%,34%,Risk of recurrence,Risk of death,First presentation:Piccart-Gebhart et al.ASCO 2005,Smith et al.Lancet 2007;369:29-36,Latest data,3 further large studies have also demonstrated similar significant reductions in risk of relapse and risk of death,Romond et al.N Engl J Med 2005;353:1673-1684;Slamon et al.SABCS 2006;abs 52,2005,HERA,1-year Herceptin vs observation after chemotherapy,HER2:role in breast cancer,Human epidermal growth factor receptor 2(HER2)is a transmembrane protein and part of the HER family of 4 growth factor receptors(HER1 to HER4)1Overexpression of HER2 and/or amplification of the HER2 gene occurs in up to 30%of breast cancers1-3HER2 positivity is associated with2-4aggressive diseasea high risk of relapsepoor survivalHER2 is the only member of the HER family acknowledged in guidelines for its prognostic and predictive value in breast cancer5HER2 is an important therapeutic target,Slamon DJ,et al.Science 1989;244:707712Slamon DJ,et al.Science 1987;235:177182Penault-Llorca F,et al.J Clin Oncol(Meeting Abstracts)2005;23:69s,abs 764 Press MF,et al.J Clin Oncol 1997;15:28942904 Goldhirsch A,et al.Ann Oncol 2006;17:17221776,Inhibition of HER2-mediated signalling,Activation of antibody-dependent cellular cytotoxicity(ADCC),Herceptin is effective across all stages of disease by activating the immune system and suppressing HER2,Additional mechanismsPrevents formation of truncated HER2(p95)Inhibition of HER2-regulated angiogenesis,Slamon DJ,et al.N Engl J Med 2001;344:783-792 Marty M,et al.J Clin Oncol 2005;23:4265-4274Baselga J.Oncology 2001;61(Suppl 2):14-21 Piccart-Gebhart MJ,et al.N Engl J Med 2005;353:16591672Romond EH,et al.N Engl J Med 2005;353:16731684Slamon D,et al.Breast Cancer Res Treat 2005;94(Suppl 1):S5,abs 1Slamon D,et al.Abstract 52 presented at the 29th SABCS,San Antonio,Texas,USA,14-17 December 2006Smith I,et al.Lancet 2007;369:29-36,The fascinating history of Herceptin,Phase I IND for rhuMAb HER2,Murine HER2/neu gene cloned,Human HER2 gene cloned,muMAb 4D5,Association of HER2 with poor clinical outcome,Paclitaxel+H and H mono US approval,Paclitaxel+H and H mono EU approval,1st IA of HERA,1992,1985,1990,1981,1987,2000,1998,2005,2006,HERA recruitment opens,HERA 2-year follow-up,Adjuvant H approval,2008,HERA 4-year follow-up and 1-year H vs 2-year H IA,2011,HERA final analysis 1-year H vs 2-year H,HER2,human epidermal growth factor receptor 2;H,Herceptin;IA,interim analysis,Adjuvant Chemotherapy,HERA study design,Herceptin q3w x 1 year,Observation,HER2-positive early breast cancer(IHC 3+and/or FISH+)n=5102,Herceptin q3w x 2 years,Option to cross over to Herceptin(after IA 2005),Surgery+(neo)adjuvant chemotherapy+radiotherapy,IHC,immunohistochemistry;FISH,fluorescence in situ hybridisation,End points of the HERA trial,Primary end pointDFS1-year Herceptin vs observation2-year Herceptin vs observationSecondary end pointsOS,RFS,distant DFS,safety 1-year Herceptin vs observation2-year Herceptin vs observationcompare DFS,OS,RFS,distant DFS and safety 1-year Herceptin vs 2-year Herceptin,DFS,disease-free survival;OS,overall survival;RFS,relapse-free survival,HERA 2008 interim analysis:2-year vs 1-year Herceptin,Statistical assumptionsHR 0.80DFS absolute reduction 4.9%5-year DFS 1-year arm:70%5-year DFS 2-year arm:74.9%p value 0.014 for early release of results,Final analysis triggered by 725 events(2011),Trial continues as planned,No data release,HR,hazard ratio;IDMC,Independent Data Monitoring Committee,HERA:IDMC recommendations October 2008,Do not release information on the 2-year Herceptin armContinue the 1-year Herceptin vs 2-year Herceptin comparisonRelease updated information on 1-year Herceptin vs observation,No conclusions can be drawn regarding the efficacy of Herceptin therapy for 2 years vs 1 year,HERA study design,HER2-positive early breast cancer(IHC 3+and/or FISH+)n=5102,Surgery+(neo)adjuvant chemotherapy+radiotherapy,Herceptin q3w x 1 year,Observation,HERA:DFS and OS over time 1 and 2 years follow-up,No.of deathsH 1 year vs observation,0,1,2,FavoursHerceptin,Favours noHerceptin,HR,OS benefit,29 vs 37p=0.26,200511 year(0%),59 vs 90p=0.0115,Median follow-up(%follow-up time after selective crossover),200622 years(4.1%),200511 year(0%),Median follow-up(%follow-up time after selective crossover),200622 years(4.3%),No.of DFS eventsH 1 year vs observation,127 vs 220p0.0001,218 vs 321p0.0001,0,1,2,FavoursHerceptin,Favours noHerceptin,HR,DFS benefit,1Piccart-Gebhart et al 2005;2Smith et al 2007,DFS:4-year median follow-up,100,80,60,40,20,0,0,6,12,18,24,30,48,36,42,Months from randomisation,16981703,15641619,14401552,13631485,12971414,12401352,712854,11801280,9921020,No.at risk,Events458369,4-yearDFS72.278.6,HR0.76,95%CI0.66,0.87,p value0.0001,1-year Herceptin,Observation,6.4%,Patients(%),OS:4-year median follow-up,0,6,12,18,24,30,48,36,42,Months from randomisation,16981703,16421660,16011640,15561615,15191577,14711524,828953,13981447,11751149,Events213182,4-yearDFS87.789.3,HR0.85,95%CI0.70,1.04,p value0.1087,1.6%,1-year Herceptin,Observation,100,80,60,40,20,0,Patients(%),No.at risk,HERA:DFS and OS over time,No.of deathsH 1 year vs observation,0,1,2,FavoursHerceptin,Favours noHerceptin,HR,OS benefit,29 vs 37p=0.26,200511 year(0%),59 vs 90p=0.0115,182 vs 213p=0.1087,Median follow-up(%follow-up time after selective crossover),200622 years(4.1%),20084 years(30.9%),200511 year(0%),Median follow-up(%follow-up time after selective crossover),200622 years(4.3%),20084 years(33.8%),No.of DFS eventsH 1 year vs observation,127 vs 220p0.0001,218 vs 321p0.0001,369 vs 458p0.0001,0,1,2,FavoursHerceptin,Favours noHerceptin,HR,DFS benefit,1Piccart-Gebhart et al 2005;2Smith et al 2007,4 year DFS：78.6%vs.72.2%,4年OS：89.3%vs.87.7%,Crossover to Herceptin of 65%of the patients originally allocated to observation disrupted the randomised comparison between 1-year Herceptin and observationQuestion:To what extent might crossover have biased the ITT analysis?,Specific question 1,Flow chart of observation patients:by status on 16 May 2005,1698 patients originally randomised to observation,1354 patients alive and disease-free,16 May,2005,344 patients DFS event or lost to follow-up198 alive post DFS event,Time to selective crossover by calendar date(n=885),0.6,0.5,0.4,0.3,0.2,0.0,16 May 2005,22 Aug 2005,28 Nov 2005,6 Mar 2006,12 Jun 2006,18 Sep 2006,25 Dec 2006,1354,1193,596,209,116,71,30,0.1,Switched to Herceptin,No.at riskObservation,Proportion,Randomisation to 1st doseDiagnosis to 1st doseFollow-up from 1st dose,Median time(range),months22.8(1-52.7)30.9(9.1-58.3)29.1(0.8-34.5),Baseline characteristics of observation patients alive and disease free on 16 May 2005,Compared to patients who did not selectively cross over to Herceptin,those who did were more likely to:be youngerhave received anthracyclines and anthracyclines plus taxanesbe diagnosed with node-positive diseasehave hormone receptor-positive tumours,885 of 1354 patients(65%)in the observation group who were alive and disease free on May 16 2005 crossed over and received HerceptinQuestions:What was the course of disease in the subgroups of observation patients who did or did not cross over to active therapy?Is there any effect of the late introduction of Herceptin?,Specific question 2,Landmark of 16 May 2005,The landmark analysis considers only patients who were alive and disease free on 16 May 2005,0,Herceptin:Alive and disease free on 16 May 2005,6,12,18,24,30,36,42,48,1481,1480,1473,1447,1399,1351,1280,1020,854,100,80,60,40,20,0,No.at risk,Patients alive and disease free(%),DFS(landmark analysis):Herceptin vs observation,Observation:Alive and disease free on 16 May 2005,Months from randomisation,1354,1353,1339,1316,1278,1239,1180,992,712,DFS(landmark analysis):observation(alive,no DFS event),selective crossover and no crossover,100,80,60,40,20,0,0,Patients alive and disease free(%),6,12,18,24,30,36,42,48,No.at risk,0,Months from randomisation,6,12,18,24,30,36,42,48,13541481,13541481,13501481,13441474,13321461,13161438,12701378,10651094,759910,100,80,60,40,20,0,OS(landmark analysis):Herceptin vs observation,No.at risk,Patients alive and disease free(%),Herceptin:Alive and disease free on 16 May 2005,Observation:Alive and disease free on 16 May 2005,Observation:Alive and disease free on 16 May 2005,0,Months from randomisation,6,12,18,24,30,36,42,48,100,80,60,40,20,0,No.at risk,Patients alive(%),OS(landmark analysis):crossover vs no-crossover,1354,1354,1350,1344,1332,1316,1270,1065,759,Cardiac safety,Cardiac deathSevere CHF(NYHA III and IV)Symptomatic CHF(II,III and IV)Confirmed significant LVEF drop,1(0.1)0(0.0)3(0.2)13(0.8),0(0.0)13(0.8)33(2.0)62(3.7)87(5.2),No.patients(%),Observationa n=1719,1-year Herceptinn=1682,Herceptin discontinued due to cardiac problems,aPatients who crossed over are censored from the date of starting Herceptin treatment,CHF,congestive heart failure;NYHA,New York Heart Association;LVEF,left ventricular ejection fraction,Cardiac safety:observation group,Cardiac deathSevere CHF(NYHA III and IV)Symptomatic CHF(II,III and IV)Confirmed significant LVEF drop,0(0.0)0(0.0)1(0.2)5a(1.1),0(0.0)0(0.0)9(1.0)26(2.9)43(4.9),Crossover n=885,Herceptin discontinued due to cardiac problems,aFor 3 of the patients,the LVEF drop occurred between 16 May 05 and the date of the patient decision and may have influenced the patient decision,No crossover after 16 May 05 n=469,HERA 4-year follow-up data:summary(1),The updated analysis at 4 years was limited to 1-year Herceptin vs observation as recommended by IDMCExtensive selective crossover of observation patients to active therapy biased the ITT comparisonLandmark analysis of observation patients who were disease free on 16 May 2005 explored the effects of later introduction of HerceptinLack of randomisation limits the interpretation of the landmark analysisdifferent outcome due to drug effect or patient characteristics?,HERA 4-year follow-up data:summary(2),In HERA,the DFS benefit associated with Herceptin is maintained at 4-year median follow-up 50%of patients in the observation arm crossed over to Herceptin treatment,therefore the OS benefit is no longer statistically significantPatients crossing over at a later date appear to benefit from 1 year of Herceptin,HERA:conclusions and next steps,4-year follow-up data support the hypothesis that the risk of relapse in HER2-positive early breast cancer persists over timeProlonged exposure to the Herceptin antibody may improve efficacy This is being tested in the comparison of the 1-year and 2-year groups in the HERA study,aBased on small subgroups of patients with HER2-positive breast cancer;bDDFS;CTx,chemotherapy;AC,doxorubicin,cyclophosphamide;P,paclitaxel;T,docetaxel;Carbo,carboplatin;V,vinorelbine;CEF,cyclophosphamide,epirubicin,5-fluorouracil,Additional studies demonstrate consistent DFS benefit for Herceptin,3,4,5,4,Gianni et al 2008;Gianni et al 2009;Joensuu et al 2009;Slamon et al 2006;Perez et al 2007;Smith et al 2007;Spielmann et al 2007,3,3,Median follow-up,years,DFS benefit,B-31/N9831 ACPH,HERA CTxH 1 year,FinHera VH/THCEFb,PACS-04a CTxH 1 year,BCIRG 006 ACTH,TCarboH,n=231,n=528,NOAH CTx/HH 1 year,3,0,1,2,Favours Herceptin,Favours no Herceptin,HR,1-year Herceptin treatment consistently reduces the risk of death by one-third,0,1,2,B-31/N9831 ACPH,3,HERA CTxH 1 year,4,OS benefit,BCIRG 006 ACTH,3,TCarboH,3,Favours Herceptin,Favours no Herceptin,HR,5,FinHer VH/THCEF,n=231,Median follow-up,years,Gianni et al 2009;Joensuu et al 2009;Slamon et al 2006;Perez et al 2007;Smith et al 2007,HER2-positive breast cancer:outstanding questions,Concurrent or sequential Herceptin therapy?Herceptin efficacy in lower-risk patients?Optimal treatment duration?Translational research?New combinations?ALTTO(Herceptin+lapatinib)BETH(Herceptin+Avastin),Ld qd+Hc q3w for 52 weeks,Lb qd for 52 weeks,ALTTO:Phase III randomised open-label trial comparing adjuvant lapatinib+/Herceptin,Surgery and completion of(neo)adjuvant anthracycline-based chemotherapy,Concurrent taxanese for 12 weeks,aHerceptin 8 mg/kg iv loading dose followed by 6 mg/kg q3w;bLapatinib 1500 mg;cHerceptin 4 mg/kg iv loading dose followed by 2 mg/kg qw;dLapatinib 1000 mg;ePaclitaxel 80 mg/m2 qw or docetaxel q3w,No taxane,Hc qw for 12 weeks,Ha q3w for 52 weeks,6-week washout,Lb qd for 34 weeks,HER2-positive early breast cancer(n=8000),Ld qd+Hc q3w for 52 weeks,Lb qd for 52 weeks,Hc qw for 12 weeks,Ha q3w for 52 weeks,6-week washout,Lb qd for 34 weeks,BETH:Phase III randomised trial comparing Herceptin-containing adjuvant regimens+/Avastin,aActual recruitment to date 300;bDocetaxel 75 mg/m2 q3w+carboplatin AUC 6 q3w or docetaxel 100 mg/m2 FEC;CTx,chemotherapy;q3w,three weekly,CTxb+Herceptin+Avastin,Resected node-positive or high-risk node-negative HER2-positive early breast cancern3600(maximum)a,Herceptin continued q3w until 1 year total,Herceptin+Avastin continued q3w until 1 year total,Primary endpoint:DFSSecondary endpoints:OS;RFS;distant recurrence-free interval;safety;biomarker analysis,St Gallen Treatment Guidelines2007:summary Recommendation:HER2 and Herceptin treatment,Patients with HER2-positive disease at high risk of early recurrence gain substantial benefit from treatment with HerceptinHerceptin should be given either with or after CTa for intermediate-or high-risk patients with confirmed HER2 overexpression/amplification,irrespective of endocrine responsiveness,aHerceptin is licensed in the EU and Switzerland for the adjuvant treatment of HER2-positive early breast cancer following chemotherapy,根据左心室射血分数(LVEF)的 赫赛汀辅助治疗方案选择指定原则,LVEF 检查时间表-赫赛汀治疗前-治疗4-8个月期间-治疗12个月时-有临床需要时,对化疗方案选择方面无明显限制赫赛汀不宜同蒽环类药物同时使用,LVEF 检查时间表-赫赛汀治疗前-每三个月一次-有临床需要时,化疗后使用赫赛汀单药序贯治疗赫赛汀可联合不含蒽环类的化疗药物,临床慎用,LVEF 50%,LVEF 40-50%,LVEF 40%,左室射血分数(LVEF)基线值评估首选：心超 亦可选用：MUGA扫描,准确的 HER2 评估,HER