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Xeloda and Xeloda-based combinations in the treatment of MBC. Steffan Kahlert Insert affiliation. Tumour/TP-activated oral Xeloda. Intestine. Liver. Xeloda. Xeloda. Tumour >> healthy tissue. CE. 5 ' -DFCR. 5 ' -DFCR. CyD. CyD. 5 ' -DFUR. 5 ' -DFUR. Thymidine phosphorylase (TP).
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Xeloda and Xeloda-based combinations in the treatment of MBC Steffan Kahlert Insert affiliation
Tumour/TP-activated oral Xeloda Intestine Liver Xeloda Xeloda Tumour >> healthy tissue CE 5'-DFCR 5'-DFCR CyD CyD 5'-DFUR 5'-DFUR Thymidine phosphorylase (TP) 5-FU 5'-DFCR = 5'-deoxy-5-fluorocytidine; 5'-DFUR = 5'-deoxy-5-fluorouridine; CyD = cytidine deaminase; CE = carboxylesterase
Patientcharacteristics Age Preference Comorbidities e.g. diabetes, impairedcardiac function Performance status Prior adjuvantchemotherapy Diseasecharacteristics Cumulative doseof anthracyclines Sites ofmetastases Tumorburden Long-termside effects Disease-freeinterval Tumor biology Increasing useof taxanes Cardiacimpairment Patient and disease characteristics influence treatment decisions Sequenceversus combination Trial vs clinicpatients
Xeloda monotherapy: highly active first-line therapy for MBC CMF = cyclophosphamide, methotrexate, 5-fluorouracil TTP = time to progression 1Talbot D et al. Br J Cancer 2002;86:1367–72 2O’Shaughnessy J et al. Ann Oncol 2001;12:1247–54
Xeloda monotherapy in patients ≥65 years: highly effective in first-line MBC Bajetta E et al. J Clin Oncol 2005;23:2155–61
First-line Xeloda: similar high activityto anthracyclines and taxanes in MBC 1Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8 2Reynoso N et al. Breast Cancer Res Treat 2005;94(Suppl. 1):S219 (Abst 5039) 3Paridaens R et al. J Clin Oncol 2000;18:724–33; 4Alexandre J et al. J Clin Oncol 2000;18:562–73 5Sjöström J et al. Eur J Cancer 1999;35:1194–201 ; 6Dieras V et al. Semin Oncol 1995;22(Suppl. 8):33–9 7Nabholtz J et al. J Clin Oncol 1996;14:1858–67; 8Miller KD et al. Breast Cancer Res Treat 2005;94:S6 (Abst 3)
Large body of evidence with Xeloda in taxane-pretreated MBC • Five trials in 730 patients evaluated Xeloda monotherapy1 • pivotal USA (n=163) • confirmatory US/French (n=75) • German (n=136) • French (n=126) • US Xeloda ± Avastin (n=462) • Xeloda dose in all trials was 1250mg/m2 twice daily for 14 days, followed by a 7-day rest period Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8
Xeloda: consistently high activity in taxane-pretreated MBC • Xeloda is more effective than other monotherapies, p=0.0052 1Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8 2Miles D et al. Clin Breast Cancer 2004;5:273–8
Favorable safety of single-agent Xeloda in all patient groups
Xeloda monotherapy in MBC: low incidence of grade 3/4 adverse events (n=713) Patients (%) • Minimal alopecia and myelosuppression • No cumulative toxicity • No treatment-related deaths 40 30 20 10 0 Hand-foot Diarrhoea Fatigue Stomatitis Nausea Dehydration syndrome Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8
Xeloda monotherapy: minimal myelosuppression (n=498) Patients (%) 40 20 0 Grade 3 Grade 4 Leukopenia Neutropenia Anemia Thrombo- cytopenia Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8
Xeloda 1000mg/m2 twice daily in patients ≥65 years Patients (%; n=43) 80 60 40 20 0 Grade 3/4 Grade 1/2 Fatigue HFS Nausea Diarrhea Stomatitis Neutropenia • Grade 3/4 diarrhea: 13% with 1250mg/m2, 2% with 1000mg/m2 • Efficacy of the two starting doses was similar (n=73) Bajetta E et al. J Clin Oncol 2005;23:2155–61
Xeloda treatment improves QoL in women with MBC (n=1125) • Overall QoL stable or improved in >70% of patients Maintained Improved (p<0.01) Patients (%) 80 60 40 20 0 Function: Physical Role Emotional Social Cognitive Segalla J et al. Eur J Cancer Suppl 2005;3:115 (Abst 410)
MOSG: first-line Xeloda sequence or combination? n=345 RANDOMI ZAT ION X825T75(n=71) X825P175 (n=73) T100 (n=21) X1250 (n=62) PD P175 (n=4) PD = disease progression MOSG = Mexican Oncology Study Group Reynoso N et al. Breast Cancer Res Treat 2005;94(Suppl. 1):S219 (Abst 5039)
First-line Xeloda sequence compares favourably with combinations Reynoso N et al. Breast Cancer Res Treat 2005;94(Suppl. 1):S219 (Abst 5039)
Sequential Xeloda and taxanes is cost-saving • Xeloda followed by a taxane is cost-saving with similar efficacy to the combinations Reynoso N et al. Breast Cancer Res Treat 2005;94(Suppl. 1):S219 (Abst 5039)
Tailoring treatment to patients with single-agent Xeloda • First-line Xeloda is a highly active, well-tolerated, cost-effective option for patients • with slowly progressing disease/low risk • where QoL issues are paramount • who are older or less fit • after adjuvant anthracyclines and taxanes
First-line MBC: expanding treatment options with rationally designed Xeloda combinations A standard of care treatment option for extending survival: fit patients with rapidly progressing disease and/or visceral metastases XT Xeloda XP ± Herceptin XN XT = Xeloda + Taxotere; XP = Xeloda + paclitaxel; XN = Xeloda + vinorelbine
Taxotere Xeloda XT XT: preclinical synergy Tumour volume change (cm3) MX-1 breast cancer xenografts 6.0 5.0 4.0 3.0 2.0 1.0 0.0 –1.0 Control 14 18 22 26 30 34 38 42 Days p<0.05 for each arm versus XT Sawada N et al. Clin Cancer Res 1998;4:1013–9
Addition of Xeloda to Taxotere extends survival Survival benefit maintained in aggressive disease XT (n=255) Taxotere (n=255) Overall population1 XT Taxotere Relapse ≤2 years2 Hazard ratio = 0.77 Log-rank p = 0.013 11.5 14.5 2Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8 Estimated probability 1.0 0.8 0.6 0.4 0.2 0.0 XT Taxotere 0 2 4 6 8 10 12 14 16 18 20 22 24 26 Months 1O’Shaughnessy J et al. J Clin Oncol 2002;20:2812–23
XT: superior response rate and TTP Estimated probability 1.0 0.8 0.6 0.4 0.2 0.0 Response rate XT (n=255) 42% Taxotere (n=256) 30% p=0.006 Log-rank p=0.0001 4.2 6.1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 Months O’Shaughnessy J et al. J Clin Oncol 2002;20:2812–23
XT significantly more active than sequential TX in first-line MBC Beslija S et al. Eur J Cancer Suppl 2005;3:118 (Abst 407)
XT (n=50) T X (n=50) Xeloda/Taxotere vs TX: survival advantage with 74% cross-over Survival probability 1.0 0.8 0.6 0.4 0.2 0.0 Hazard ratio = 0.53 p = 0.006 19 22 0 5 10 15 20 25 30 35 40 Months Beslija S et al. Eur J Cancer Suppl 2005;3:118 (Abst 407)
XT (n=50) T X (n=50) Acceptable safety of XT versus Taxotere (grade 3/4) Patients (%) 40 30 20 10 0 HFS Fatigue Edema Stomatitis Alopecia Diarrhea Neutropenia Neutropenic fever Beslija S et al. Eur J Cancer Suppl 2005;3:118 (Abst 407)
O’Shaughnessy trial: XT dose reduction does not compromise efficacy – OS Survival probability 1.0 0.8 0.6 0.4 0.2 0.0 Cycle 2 dose Both full, X1250T75 Both reduced, X1000T60 14.6 15.0 0 5 10 15 20 25 30 35 40 45 50 Months F. Hoffmann-La Roche, data on file
Both full dose, X1250T75 (670 cycles) Both reduced dose, X1000T60(405 cycles) O’Shaughnessy trial: less grade 3/4 toxicity after XT doses reduced Cycles (%) • The Xeloda label recommends a reduced starting dose for patients with moderate renal impairment or those aged ≥60 years at baseline 20 16 12 8 4 0 Diarrhea Stomatitis Hand-foot Neutropenic syndrome fever Leonard R et al. Semin Oncol 2004;31(Suppl. 10):21–8
Quality of life not compromised with XT Global health status XT Taxotere 80 70 60 50 40 0 0 6 12 18 24 30 36 42 48 Weeks O’Shaughnessy J et al. J Clin Oncol 2002;20:2812–23
Xeloda/paclitaxel: consistent activity in MBC 1Batista N et al. Br J Cancer 2004;90:1740–6; 2Gradishar W et al. J Clin Oncol 2004;22:2321–7 3Blum J et al. Breast Cancer Res Treat 2004;88(Suppl. 1):S202 (Abst 5053) 4Susnjar S et al. J Clin Oncol 2005;23:90s (Abst 851); 5Uhlmann C et al. Oncology 2004;67:117–22
Favorable safety profile of q3w XP: low incidence of grade 3/4 adverse events Gradishar W et al. J Clin Oncol 2004;22:2321–7 Batista N et al. Br J Cancer 2004;90:1740–6
Xeloda/vinorelbine: consistently high activity in MBC 1Ghosn M et al. J Clin Oncol 2005;23:46s (Abst 673) 2Stuart N et al. Proc Am Soc Clin Oncol 2003;22:46 (Abst 183) 3Ahn J et al. Proc Am Soc Clin Oncol 2003;22:54 (Abst 216)4Welt A et al. Ann Oncol 2005;16:64–95Estevez L et al. Ann Oncol 2004;15(Suppl. 3):iii44 (Abst 166P)
XT Xeloda XP ± Herceptin XN Xeloda-based regimens: expandingoptions for the first-line treatment of MBC • Xeloda is a highly effective and well-tolerated combination partner, allowing tailoring of treatment • Xeloda should be considered a first-line agent of choice in single-agent setting