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University of Manchester

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1 University of Manchester
Nick Thatcher Professor of Oncology at the University of Manchester, Christie Hospital NHS Trust and Wythenshawe Hospital, Manchester, UK Chairman of the Lung Cancer Disease Oriented Group Former Vice-Chairman of the United Kingdom Coordinating Committee on Cancer Research Member of the National Cancer Trials Network Lung Group Author or co-author of many articles in international peer-reviewed journals Main clinical interests: clinical trial research of lung cancer and the development of new treatments University of Manchester

2 The new kid on the block: bevacizumab in first-line NSCLC
Nick Thatcher Christie Hospital NHS Trust Manchester, UK

3 The therapeutic plateau
Modern platinum chemotherapy doublets achieve similar efficacy 1.0 0.8 0.6 0.4 0.2 Cisplatin/paclitaxel (CIP) Cisplatin/gemcitabine (CG) Cisplatin/docetaxel (CD) Carboplatin/paclitaxel (CP) Probability of survival Months Schiller JH, et al. N Engl J Med 2002;346:92–8

4 Median overall survival
Many targeted therapies have failed to show clinical benefit in first-line NSCLC Trial Regimen Median overall survival (months) p value Placebo Agent INTACT-1 CG ± gefitinib 10.9 9.9/9.9 NS INTACT-2 CP ± gefitinib 9.9 9.8/8.7 TRIBUTE CP ± erlotinib 10.5 10.6 TALENT CG ± erlotinib 10.0 10.3 SPIRIT-1 VC ± bexarotene 8.7 SPIRIT-2 CP ± bexarotene 9.2 8.5 Paz-Ares et al. CG ± aprinocarsen 10.4 ISIS-3521 CP ± aprinocarsen 9.7 AG CG ± prinomastat 10.8 11.5 BR.18 CG ± BMS 8.6 NS = not significant; VC = vinorelbine/cisplatin

5 Treatment algorithm for NSCLC
Early stage Locally advanced/metastatic Surgery and radiotherapy ± adjuvant therapy PS 3–4 PS 0–2 Best supportive care (BSC) Platinum doublet chemotherapy or third-generation non-platinum doublet Single-agent chemotherapy (elderly) 2nd/3rd line treatment PS = performance status

6 1990s: survival expectations of patients with advanced NSCLC
14 12 10 8 6 4 2 Platinum-based doublets: 8–10 months Median survival (months) Single-agent platinum: 6–8 months BSC: 2–5 months Patient with PS 3–4 Elderly patient with PS 3–4 Patient with PS 0–2

7 Vascular endothelial growth factor (VEGF), the key mediator of tumour angiogenesis, is an ideal therapeutic target VEGF is overexpressed in a wide variety of tumours and may be associated with reduced survival Promotes survival of vasculature critical to tumour2 Has a limited role in healthy adults1 Stimulates new vasculature required for growth and metastasis3 Increases intratumoural pressure, preventing penetration of chemotherapeutic agents4,5 1Ferrara N, et al. Nat Med 2003;9:669–76; 2Alon T, et al. Nat Med 1995;1:1024–8 3Folkman J. N Engl J Med 1971;285:1182–6; 4Netti P, et al. Proc Natl Acad Sci USA 1999;96:3137–42 5Dvorak H, et al. Am J Pathol 1995;146:1029–39 7

8 Bevacizumab prevents angiogenesis through a novel mechanism of action
VEGF Bevacizumab Bevacizumab is a recombinant humanised monoclonal anti-VEGF antibody that prevents the binding of VEGF to its receptors recognises all major isoforms of human VEGF X P– – P P– – P X Growth Proliferation Migration Survival 8

9 Mechanism of action of bevacizumab
EARLY EFFECTS CONTINUED EFFECTS Regression of existing tumour microvasculature1–7 Inhibition of new tumour vasculature1,2,9,10 1 3 2 Normalisation of remaining tumour vasculature5–8 1Baluk P, et al. Curr Opin Genet Dev 2005;15:102–11; 2Inai T, et al. Am J Pathol 2004;165:35–52 3Erber R, et al. FASEB J 2004; 4Tong R, et al. Cancer Res 2004;64:3731–6 5Jain R. Nat Med 2001;7:987–9; 6Jain R. Science 2005;307:58–62 7Lee C-G, et al. Cancer Res 2000;60:5565–70; 8Willett C, et al. Nat Med 2004;10:145–7 9Gerber H-P, et al. Cancer Res 2005;65:671–81; 10Warren R, et al. J Clin Invest 1995;95:1789–97

10 Phase II trial of bevacizumab in NSCLC (AVF0757g): trial design
(15mg/kg) every 3 weeks CP x 6 (n=32) PD Previously untreated stage IIIB/IV NSCLC CP x 6 + bevacizumab (7.5mg/kg) every 3 weeks (n=32) PD CP x 6 + bevacizumab (15mg/kg) every 3 weeks (n=35) PD Primary endpoints: time to progression and response rate Secondary endpoints: overall survival and duration of response Bevacizumab administered every 3 weeks until progression Chemotherapy administration (maximum six cycles) paclitaxel 200mg/m2 i.v. every 3 weeks carboplatin i.v. to AUC 6 every 3 weeks following paclitaxel infusion PD = progressive disease; i.v. = intravenous AUC = area under the curve Johnson LD, et al. J Clin Oncol 2004;22:2184–91

11 Phase II trial of bevacizumab in NSCLC (AVF0757g): proof of principle
Bevacizumab + CP CP (n=32) Bevacizumab 7.5mg/kg (n=32) Bevacizumab 15mg/kg (n=34) Response rate, % (n) Investigator Independent review facility 18.8 (6) 31.3 (10) 28.1 (9) 21.9 (7) 31.5 (11)* 40.0 (14)* Median time to progression (months) 4.2 5.9 4.3 4.1 7.4 7.0 Median survival (months) 14.9 11.6 17.7 *n=35 Johnson LD, et al. J Clin Oncol 2004;22:2184–91

12 Phase III trial of bevacizumab plus CP in NSCLC (E4599): trial design
CP (n=444) PD* Previously untreated stage IIIB/IV non-squamous NSCLC (n=878) *No crossover permitted Bevacizumab (15mg/kg) every 3 weeks + CP (n=434) Bevacizumab (15mg/kg) every 3 weeks until progression PD Primary endpoint: overall survival Bevacizumab 15mg/kg i.v. administered every 3 weeks Carboplatin i.v. to AUC 6 and paclitaxel 200mg/m2 i.v. every 3 weeks Sandler A, et al. N Engl J Med 2006;355:2542–50

13 E4599: bevacizumab-based therapy was the first regimen to extend overall survival beyond 1 year
Bevacizumab + CP CP Median overall survival >12 months HR=0.79 (0.67–0.92); p=0.003 1.0 0.8 0.6 0.4 0.2 15 10 5 12.3 10.3 Median overall survival (months) Probability of survival CP Bevacizumab + CP 10.3 12.3 Months HR = hazard ratio Sandler A, et al. N Engl J Med 2006;355:2542–50

14 2006: survival expectations of patients with advanced NSCLC
E4599: breaking through the therapeutic plateau 14 12 10 8 6 4 2 Therapeutic plateau Bevacizu-mab + platinum-based doublet: months Platinum-based doublets: 8–10 months Median survival (months) Single-agent platinum: 6–8 months BSC: 2–5 months Patient with PS 3–4 Elderly patient with PS 3–4 Patient with PS 0–2 Bevacizumab-eligible patient

15 Phase III trial of bevacizumab plus CG in NSCLC (AVAiL): trial design
7.5mg/kg + CG (n=345) R A N D O M I S E Bevacizumab PD Previously untreated, stage IIIB, IV or recurrent non-squamous NSCLC (n=1,043) Placebo + CG (n=347) Placebo (no crossover allowed) PD Bevacizumab 15mg/kg + CG (n=351) Bevacizumab PD Primary endpoint: PFS Initiated to evaluate bevacizumab in combination with a platinum-based chemotherapy regimen commonly used in Europe and other regions of the world PFS = progression-free survival Manegold C, et al. Eur J Cancer Suppl 2007;5:9 (Abstract 1B)

16 AVAiL: significant improvement in PFS with both doses of bevacizumab
Placebo + CG Bevacizumab 7.5mg/kg + CG Bevacizumab 15mg/kg + CG HR 95% CI –0.91 –0.98 p value 0.0026 0.0301 Median PFS (months) 6.1 6.7 6.5 1.0 0.8 0.6 0.4 0.2 Possibility of PFS Time (months) CI = confidence interval Manegold C, et al. Eur J Cancer Suppl 2007;5:9 (Abstract 1B)

17 Value of PFS to the patient
PFS is an increasingly important endpoint in oncologic drug development risk of confounding overall survival due to ever more effective second- and third-line cancer treatments and the growing use of ‘crossover’ trial designs in oncology use of PFS rather than overall survival can expedite the availability of novel therapeutic options to patients PFS is relevant to clinical practice in a systematic review of adjuvant colon cancer studies, disease-free survival was considered to be the most informative endpoint for assessing the effect of treatment1 1Punt C, et al. J Natl Cancer Inst 2007;99:998–1003

18 AVAiL and E4599 have comparable PFS benefit
AVAiL primary PFS analysis PROGRESSION OR DEATH Bevacizumab or placebo + chemotherapy Second-line antineoplastic therapy E4599 PFS analysis and AVAiL censored analysis With non-protocol therapy censoring E45991 AVAiL2 Bevacizumab 15mg/kg + CP (n=434) Bevacizumab 7.5mg/kg + CG (n=345) Bevacizumab 15mg/kg + CG (n=351) HR 95% CI p value –0.77 0.001 –0.83 0.0001 –0.90 0.0021 1Sandler A, et al. N Engl J Med 2006;355:2542–50 2Manegold C, et al. Eur J Cancer Suppl 2007;5:9 (Abstract 1B)

19 Positive trial results led to US and EU approval of bevacizumab plus chemotherapy
11 October 2006 The Food and Drug Administration approved the use of bevacizumab at a dose of 15mg/kg, in combination with carboplatin/paclitaxel, for the first-line treatment of patients with unresectable, locally advanced, metastatic or recurrent non-squamous NSCLC 24 August 2007 The EU approved the use of bevacizumab at a dose of 7.5mg/kg or 15mg/kg, in combination with platinum-based chemotherapy, for the first-line treatment of patients with unresectable advanced, metastatic or recurrent NSCLC other than predominantly squamous cell histology

20 Efficacy of other agents in first-line NSCLC

21 Phase III trial of cetuximab plus cisplatin/vinorelbine in first-line NSCLC (FLEX)
Cetuximab (initial 400mg/m2 2-hour infusion then 250mg/m2 1-hour infusion weekly) Cisplatin (80mg/m2 day 1 every 3 weeks) Vinorelbine (30mg/m2 day 1 and 8 every 3 weeks) Patients with EGFR- expressing NSCLC (n=1,100) 1:1 randomisation Cisplatin (80mg/m2 day 1 every 3 weeks) Vinorelbine (30mg/m2 day 1 and 8 every 3 weeks) Increase median survival from 8 to 10 months Met primary overall survival endpoint 11/09/2007 EGFR = epidermal growth factor receptor

22 Time from randomisation (months)
Phase III trial of cetuximab plus taxane/carboplatin versus taxane/carboplatin (TC) in first-line NSCLC PFS (per Independent Radiologic Review Committee) 1.0 0.8 0.6 0.4 0.2 HR=0.802 (95% CI: 0.761–1.089), p=0.2358 4.40 months Probability of PFS Cetuximab + TC (n=338, events=284) TC (n=338, events=263) 4.24 months Time from randomisation (months) Lynch LT, et al. J Thorac Oncol 2007;2(Suppl. 4)S296 (Abstract Y1-03)

23 Phase III trial of pemetrexed/carboplatin versus gemcitabine/carboplatin in first-line NSCLC
Pemetrexed/carboplatin (n=219) Pemetrexed 500mg/m2 day 1 Carboplatin AUC = 5 (Calvert) day 1 every 3 weeks 4 cycles or PD or intolerable toxicity Gemcitabine/carboplatin (n=218) Gemcitabine 1,000mg/m2 day 1 and day 8 Carboplatin AUC = 5 (Calvert) day 1 every 3 weeks 4 cycles or PD or intolerable toxicity All patients were supplemented with vitamins Patients 75 years received 75% dose Grønberg BH, et al. J Clin Oncol 2007;25(Suppl. 18 Pt I):S18 (Abstract 7517)

24 Days since randomisation
Phase III trial of pemetrexed/carboplatin versus gemcitabine/carboplatin in first-line NSCLC Median OS (months) 95% CI p value Pemetrexed/carboplatin 7.3 6.1–8.6 Gemcitabine/carboplatin 7.0 5.8–8.2 0.60 1.0 0.8 0.6 0.4 0.2 Survival (%) Days since randomisation Grønberg BH, et al. J Clin Oncol 2007;25(Suppl. 18 Pt I):S18 (Abstract 7517)

25 Pemetrexed plus cisplatin versus gemcitabine/cisplatin in first-line NSCLC
Overall survival (months) 10.3 PFS (months) 4.8 5.1 1-year survival (%) 43.5 41.9 2-year survival (%) 18.9 14.0 OS (months) by histology Pemetrexed/ cisplatin Gemcitabine/ HR (CI) Adenocarcinoma (n=847) 12.6 10.9 0.84 (0.71–0.98) Large cell (n=153) 10.4 6.7 0.68 (0.48–0.97) Squamous cell (n=473) 9.4 10.8 1.22 (0.99–1.50) Scagliotti GV, et al. J Thorac Oncol 2007;2:107 (Abstract E09-03)

26 Patient management

27 Management of bevacizumab-associated adverse events
In patients with NSCLC no unexpected toxicities seen with bevacizumab plus platinum-based chemotherapy1–3 events with higher incidence in bevacizumab-treated patients mainly include those already recognised in other bevacizumab trials, such as bleeding arterial and venous thromboembolic events hypertension proteinuria these events are generally easily managed 1Johnson D, et al. J Clin Oncol 2004;22:2184–91 2Sandler A, et al. N Engl J Med 2006;355:2542–50 3Manegold C, et al. J Clin Oncol 2007;25(Suppl. 18 Pt I):S18 (Abstract LBA7514)

28 AVAiL had slightly more stringent exclusion criteria than E4599
Exclusion criteria E4599 Exclusion criteria AVAiL History of gross haemoptysis (bright red blood ½ teaspoon) History of grade 2 haemoptysis CNS metastases Brain metastases or spinal cord compression Symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia Clinically significant cardiovascular disease Evidence of tumour invading or abutting major blood vessels Malignancies other than NSCLC within 5 years prior to randomisation CNS = central nervous system

29 Bevacizumab has a well-characterised safety profile: similar profile was observed in E4599 and AVAiL
Grade 3 adverse events (%) Bevacizumab 7.5mg/kg + CG (n=330) Bevacizumab 15mg/kg + CG (n=329) Bevacizumab 15mg/kg + CP (n=427) Hypertension 6 9 7 Neutropenia* Febrile neutropenia* 40 2 36 2 Thrombocytopenia* 27 23 1.6 Venous thrombosis 3.8 Arterial thrombosis 2 3 1.9 Proteinuria 0.3 1 3.1 Bleeding Epistaxis Haemoptysis *E4599 reports only grade 4/5 haematological events Sandler A, et al. N Engl J Med 2006;355:2542–50 Manegold C, et al. Eur J Cancer Suppl 2007;5:9 (Abstract 1B)

30 Bleeding events for lung cancer patients are generally minor and easily managed
The majority of bleeding events are minor and mucocutaneous and do not require medical intervention Most nosebleeds begin on the septum, an area lined with fragile blood vessels Minor bleeding events can be easily managed using standard first-aid techniques

31 Appropriate patient selection reduces bleeding risk
10 8 6 4 2 AVF0757g Bevacizumab 7.5 or 15mg/kg + CP* E4599 Bevacizumab 15mg/kg + CP AVAiL Bevacizumab 7.5mg/kg + CG AVAiL Bevacizumab 15mg/kg + CG Restricting eligibility to patients with non-squamous histology and minimal baseline haemoptysis Additional exclusion of tumours abutting or invading major blood vessels Percentage Grade 3 pulmonary haemorrhage Johnson D, et al. J Clin Oncol 2004;22:2184–91 Sandler A, et al. N Engl J Med 2006;355:2542–50 Manegold C, et al. Eur J Cancer Suppl 2007;5:9 (Abstract 1B) *Phase II trial including patients with squamous cell histology

32 Hypertension is generally easily managed using standard antihypertensive treatment
Grade 1 continue treatment with bevacizumab Grade 2 start antihypertensive therapy, once blood pressure (BP) is <150/100mmHg continue treatment with bevacizumab Grade 3 start antihypertensive therapy with two or more drugs, hold bevacizumab for persistent or symptomatic therapy Blood pressure should be actively managed Discontinuation of bevacizumab is rarely required

33 Calcium channel blocker
Management of hypertension: ACE inhibitors, diuretics and calcium channel blockers all used successfully in AVAiL Use of diuretics to manage hypertension is not advised in patients who receive cisplatin-based chemotherapy1 40 30 20 10 32.7 27.6 19.9 Patients (%) 11.1 8.7 ACE inhibitor Beta- blocker Calcium channel blocker Diuretic Other 1Avastin Summary of Product Characteristics ACE = angiotensin converting enzyme

34 Proteinuria can be easily monitored
Proteinuria should be actively managed during treatment with bevacizumab Monitoring for proteinuria is recommended prior to and during treatment with bevacizumab If reading is 2+ or greater (3+ on second and subsequent occurrences), 24-hour urine collection should be used Trial practice interrupt bevacizumab if urine protein levels (UPL) 2g/24 hours, restart once UPL <1g/24 hours Proteinuria can be easily monitored Discontinuation of bevacizumab is rarely required

35 Safety of Avastin® in Lung (SAiL) trial will provide further safety information
Locally advanced, metastatic or recurrent non-squamous NSCLC (n=2,000) Chemotherapy* + bevacizumab 7.5mg/kg or 15mg/kg every 3 weeks (up to 6 cycles) Bevacizumab maintenance therapy PD Primary endpoint: safety profile of bevacizumab when combined with chemotherapy Secondary endpoints: time to disease progression, overall survival, safety of bevacizumab in patients who develop CNS metastases Approximately 2,000 patients from 400 centres worldwide will be recruited *Standard-of-care first-line NSCLC chemotherapy regimen 35

36 SAiL interim safety results: serious adverse events of special interest
Grade 3–5 adverse events of special interest reported to date for the intent-to-treat population (n=513) hypertension (2.1%) arterial and venous thromboembolic events (1.4%) proteinuria (0.2%) gastrointestinal perforation (0.2%) congestive heart failure (0.2%) wound-healing complications (0%) haemoptysis (0%) CNS bleeding (0%) other haemorrhages (0.4%) Crino L, et al. Eur J Cancer Suppl 2007;5:364 (Abstract 6522)

37 Case study of first-line bevacizumab: case history and treatment choice
38-year-old nurse presented with thoracic pain and prolonged bronchial infection Stage IV adenocarcinoma (T2N2M1) diagnosed November 2006 tumour in upper right lobe and lower left lobe Patient enrolled into the SAiL trial received bevacizumab and chemotherapy on a 3-week cycle for six cycles day 1: bevacizumab (15mg/kg), cisplatin (75mg/m2), gemcitabine (1,250mg/m2) day 8: gemcitabine (1,250mg/m2) Eric Dansin, CRLCC Oscar Lambret, Lille, France

38 Case study of first-line bevacizumab: management of treatment-associated adverse events
Adverse events were mild and easily managed epistaxis: grade 1, successfully managed by standard first-aid techniques thrombocytopenia: successfully managed by platelet transfusion nausea: managed by anti-emetics No proteinuria or hypertension observed Eric Dansin, CRLCC Oscar Lambret, Lille, France

39 Case study of first-line bevacizumab: clinical course and outcome
Before treatment After 6 cycles of bevacizumab plus cisplatin/ gemcitabine Eric Dansin, CRLCC Oscar Lambret, Lille, France

40 Case study of first-line bevacizumab: clinical course and outcome
Partial response after two cycles; confirmed after cycles 4 and 6 upper right lobe tumour reduced from 5cm to a residual lesion probable mediastinal downstaging (PET criteria) Sufficient response to warrant surgical intervention bevacizumab discontinued to prepare for surgery however, following suspension of bevacizumab, disease progression occurred; surgery was cancelled bevacizumab reinitiated to counter further progression This case supports the use of bevacizumab until disease progression PET = positron emission tomography Eric Dansin, CRLCC Oscar Lambret, Lille, France

41 Bevacizumab consistently improves outcomes in advanced NSCLC
Bevacizumab administered until disease progression with platinum-based chemotherapy extends overall survival beyond 12 months significantly delays disease progression has a well-characterised safety profile Based on E4599 and AVAiL, bevacizumab plus platinum-based chemotherapy represents the standard of care for bevacizumab-eligible patients with advanced NSCLC

42 Bevacizumab is changing the therapeutic landscape for advanced NSCLC
Early stage Locally advanced/metastatic Surgery and radiotherapy ± adjuvant therapy PS 3–4 PS 0–2 Best supportive care Platinum doublet chemotherapy + bevacizumab* (PS 0–1) Platinum doublet chemotherapy or third-generation non-platinum doublet (PS 2) Single-agent chemotherapy (elderly) 2nd/3rd line treatment *NCCN Clinical Practice Guidelines in Oncology Non-small cell lung cancer v


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