breast and OVARIAN cancer

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1 breast and OVARIAN cancer DR DAVID FENNELLY CONSULTANT MEDICAL ONCOLOGIST ST VINCENT S UNIVERSITY HOSPITAL DUBLIN

2 HOW RELEVANT IS ONCOLOGY IN MEDICINE TODAY? Cancer is the second leading cause of death worldwide Only cardiovascular diseases overcome cancer as cause of death Overall incidence of cancer is increasing as a result of improved life expectancy The psychological impact of cancer on patients and their relatives is a big part of the cancer problem in modern Medicine

3 Rate per 100,000 TRENDS IN MORTALITY FROM CANCER IN UK ( ) Age-standardised incidence rates for all cancers and mortality rates for all Persons Incidence Persons Mortality Year of diagnosis/death

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7 BREAST CANCER IN IRELAND: THE FACTS Breast cancer is the most common type of malignant cancer among women in Ireland Ireland is one of the countries with the highest breast cancer mortality worldwide Breast cancer mortality is different with age but represents a substantial cause of death for ages between Age-standardised rate (W): A rate is the number of new cases or deaths per persons per year. An agestandardised rate is the rate that a population would have if it had a standard age structure. Standardization is necessary when comparing several populations that differ with respect to age because age has a powerful influence on the risk of cancer.

8 WHAT HAPPENED OVER THE LAST 20 YEARS? Diagnosis at earlier stages (breast, colon, prostate cancer) Role of screening and education Improvements in surgical treatments (breast, colon lung cancer, soft tissue sarcoma) Improvements in medical treatments for the early stage malignancies (adjuvant therapies) Changes in life-style (gastric, lung, cervical cancer) But most important BETTER UNDERSTANDING OF MOLECULAR BIOLOGY OF CANCER

9 An example from clinical practice In 1981 Mastectomy specimen: invasive breast cancer 21 mm in size 20 axillary lymph nodes negative for metastatic carcinoma In 2011 WLE specimen: invasive breast cancer 21 mm in size 2 axillary sentinel lymph nodes negative for metastatic carcinoma Grade II Lymphovascular invasion present Ki-67 (proliferation index) ER and PGR positive HER2 negative (by IHC and FISH) OncotypeDX Recurrence Score: 26

10 Breast anatomy

11 Progress of breast surgery (early 1900s to 2000s) s 1970s 1990s

12 DEFINITIONS OF CANCER Clinical definition A neoplasm is an abnormal mass of tissue, the growth of which exceeds and is uncoordinated with that of the normal tissues and persists in the same excessive manner after cessation of the stimuli which evoked the change. (Robbins, 7 th edition) Molecular definition Cancer results by the clonal expansion of a single precursor cell that has incurred genetic damage (or mutation) acquired by the action of environmental agents, such as chemicals, radiation, or viruses, or inherited in the germ line. This process, called carcinogenesis, is a multistep process at both the phenotypic and the genetic levels, resulting from the accumulation of multiple mutations.

13 TNM staging of breast cancer (I)

14 TNM staging of breast cancer (II)

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17 Epithelial Ovarian Cancer The crude incidence of ovarian cancer in the European Union is 18/ women per year, the mortality is 12/ women per year The median age at diagnosis is 63 yrs. Incidence increases with age and peaks in the 8th decade. Between age of years age-specific incidence is 57/ women per year * ESMO minimum Clinical Recommendations Ann Oncol 19 (suppl 2): ii14-ii16, 2008

18 Five-year Survival in Ovarian Cancer 30 years of experience Vol. Year Cases Ia IV Overall (n) % * Int. J Gynecol Obstet 2006 (Suppl 1)

19 Epithelial Ovarian Cancer Milestones Surgery according to FIGO guidelines At least LNS and peritoneal staging in early ovarian cancer Upfront maximal surgical debulking in advanced ovarian cancer Chemotherapy evolution Introduction of platinum compounds Introduction of taxanes The set-up of the GCIG in 1997

20 ARE THERE ANY NEW DEVELOPMENTS IN EARLY OVARIAN CANCER? FIGO I-IIA Grade and complete staging are strongest prognostic factors Low risk patients do not need chemotherapy as an adjuvant treatment (5-yr survival 95%) High-risk patients do need adjuvant platinum-based chemotherapy: combined analysis of ICON-1 and ACTION trial* showed 5-yr OS 82%vs 74%, p=.008 no significant difference in outcome, but recurrence rate with 6 cycles was 24% lower than with 3 cycles, and significantly more toxicity *Trimbos et al, JNCI 2003 Bell et al, Gynecol Oncol 2006

21 NEW DATA FOR ADVANCED OVARIAN CANCER NACT an alternative for not optimal resectable FIGO IIIc (Vergote et al, NEJM 2010) No benefit from adding a third drug to TC No role for consolidation/maintenance cytotoxic CT? 1 study positive for PFS (12 vs 3 cycles paclitaxel PFS 28 vs 21 months, p<.005): Markman et al, JCO 2003) Dose dense TC superior (JGOG study) Confirmatory studies ongoing IP therapy finally recognized

22 MRC CHORUS StgIII/IV Treatment Surgery outcome OS Bulky disease Median age = 65 NACT 35% OptDebulk 24.5 months N= 550 randomised IDS 92% home 14/7 76% 1yr survival 25% % Stg IV Same chemo delivery Primary sx Adjuvant chemo 15% OptDebulk 78% home 14/7 70% 1yr survival 22.5 months

23 MITO-7 TRIAL DESIGN Phase I/II trial of weekly taxol MSKCC (fennelly D et al : J Clin Oncol 1996) Aim of the trial is to compare the quality of life and PFS 1 st -line advanced ovarian, tubal and peritoneal cancer Carboplatin AUC 6 Paclitaxel 175 mg/m 2 RANDOMISE day 1 - every 21days Carboplatin AUC 2 Paclitaxel 60 mg/m2 day 1, every 21days

24 MITO 7 PFS

25 MITO-7 QOL BETTER

26 MITO-7 OVERALL SURVIVAL

27 CLASSICAL ANTI-CANCER DRUGS VS NEW TARGETED AGENTS The new targeted anticancer agents are designed to target specific molecules which are considered crucial in specific pathways (e.g. growth regulation, DNA-repair, angiogenesis, invasion and metastasis) Mechanism of action defined before their design Highly selective therapeutic target Patients selected for the target Molecular rationale for associations of different agents

28 Targeted Therapies in Ovarian Cancer Target Drug(s) ErbB kinases MUC1 / PEM MUC16 (CA 125) mtor / AKT Apoptosis pathway Angiogenesis Endothelial cells Gefitinib, erlotinib, lapatinib, canertinib, cetuximab, pertuzumab, matuzumab, trastuzumab Pemtumomab Oregovomab Temsirolimus, everolimus, deforolimus AEG35156, OGX-011 Bevacizumab, sunitinib, sorafenib, pazopanib, cediranib, vatalanib Combretastatin, Oxi4503 Matrix metalloproteinases BAY , marimastat

29 FIRST-LINE TRIAL OF BEVACIZUMAB IN OVARIAN CANCER (GOG#218) Stage III Optimal and Suboptimal or Stage IV R A N D O M I Z E Paclitaxel/Carbo (PC) + placebo x6 placebo x16 PC+bev* x6 placebo x16 PC+bev x6 bev x16 *Dose of bevacizumab 15 mg/kg q 3 weeks Total number of patients 2000

30 Proportion surviving progression free KEY RESULTS THERE IS CLEAR CLINICAL EFFECT OF BEVACIZUMAB ON PFS Per protocol analysis: Significant improvement of PFS in Arm III only Per protocol analysis: 3.8 mo increase PFS (med) HR 0.717, p < ~ half of all progression events occurred on therapy Chemo (Arm I) + BEV (Arm II) CA 125 censored PFS (sensitivity analysis): Similar outcomes (HR 0.645), but 25% fewer events + BEV BEV maintenance (Arm III) Months from randomization GOG 218

31 FIRST-LINE TRIAL OF BEVACIZUMAB IN OVARIAN CANCER (ICON - 7) Stage Ic - IV Excluding those scheduled for further surgery R A N D O M I Z E *Dose of bevacizumab 7.5 mg/kg q 3 weeks Total number of patients 1500 Paclitaxel/Carbo (PC) PC+bev* x6 bev x12

32 ICON-7: PFS Academic analysis Accessed 15 October 2010

33 Proportion alive without progression PFS: FIGO STAGE III SUBOPTIMAL AND FIGO STAGE IV WITH DEBULKING 1.00 Control (n=234) Research (n=231) 0.75 Events, n (%) 173 (74) 158 (68) Median, months Log-rank test p<0.001 Hazard ratio (95% CI) 0.68 ( ) Restricted mean Control Research Time (months) Number at risk Control Research Accessed 15 October 2010

34 Kristensen G. et al, ASCO 2011, abstract #LBA5006

35 RECURRENT OVARIAN CANCER: IMPORTANT ISSUES Presentation (asymptomatic 55-70%; TFI*) Realistic goals When to treat How to treat New combinations and compounds *<6 months; 6-12 months; <12 months

36 REALISTIC GOALS OF SECOND-LINE THERAPY IN OVARIAN CANCER Improve cancer-related symptoms Optimize overall quality of life Delay time to symptomatic disease progression Prolong overall survival Achieve an objective response Markman M, 2002

37 WHEN TO TREAT? Harries and Gore, 2002

38 Ovarian Ca Conclusions Upfront surgery followed by 6 cycles of Pt-Tax-based CT is still standard Paclitaxel + carboplatin (TC) generally agreed standard arm for trials NACT followed by surgery in stages IIIc-IV OC showed the same OS and PFS as PDS with less morbidity in one large randomized GCIG trial. A dose-dense therapy approach may be of benefit Intraperitoneal chemotherapy suitable for selected patients Targeted therapy is promising, in particular anti-angiogenic approaches, however cost effectiveness questions remain.

39 The Physician s Dilemma To standardize? To individualize? This is the question!