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Phase II trial of sequential gemcitabine and carboplatin followed by paclitaxel as first-line treatment of advanced urothelial carcinoma Presented by Celine BOUTROS Hotel-Dieu de France 1 Background • • • • Bladder cancer is the 4th cancer in men, the 9th in women 69,000 new cases diagnosed in the US in 2008 Transitional Cell Carcinoma (TCC): most frequent histological subtype The standard first-line regimen in advanced TCC: - 1989-2000: Methotrexate, Vinblastine, Doxorubicin, Cisplatin (MVAC)1 - > 2000: Gemcitabine plus Cisplatin2 : similar activity, less toxicity 1 2 Sternberg CN et al. Cancer 1989;64:2448-2458. Von der Maase H et al. J Clin Oncol 2000;18:3068-3077. 2 Objectives of the study Primary objective • Explore the activity of Gemcitabine plus Carboplatin (GC) followed sequentially with Paclitaxel in advanced TCC Secondary objective • Assess the toxicity profile of the regimen 3 Materials and Methods eligibility Single-Arm, Multicenter, Phase II trial , from September 2004 to September 2007 Eligibility Criteria: • At least one dimensionally measurable disease • Locally advanced or metastatic disease • Histological infiltrative urothelial cancer • No prior chemotherapy unless given in more than one year freeinterval • No prior radiation therapy • Performance status (PS) ≤ 2 • Adequate blood counts and chemistries • Normal organ function 4 Materials and Methods treatment schedule Gemcitabine 800mg/m2 (D1, D8) + Carboplatin AUC 2 (D1, D8) Evaluation (RECIST) Paclitaxel 60 mg/m2 weekly for 12 weeks Evaluation (RECIST) Every 3 weeks for 4 cycles 5 Results Patient Characteristics n Mean age (years) % 68 Male / Female 22 / 5 81/18 ECOG PS ≤ 2 27 100 Prior radical cystectomy 12 44 Prior chemotherapy 0 0 Distant metastases 11 40 Locoregional disease with only positive lymph nodes 16 60 Patients included 27 6 Results Drug delivery Assessment of drug delivery for GC and Paclitaxel sequences Paclitaxel GC sequence sequence Mean number of cycles administered 3.5 7 Number of patients removed 7 6 - progression - personal request 6 1 0 6 Dose reduction for myelosuppression 2 2 7 Results Treatment efficacy Response Assessment to GC and Paclitaxel sequences GC sequence End of therapy 41% (1) 43% (2) 1 10 3 3 SD 3 4 PD 11 4 Overall response rate CR PR (1) 8 responses of 11 achieved in locally advanced TCC without distant metastases (2) Responses achieved in locally advanced TCC without distant metastases (same patients) 8 Results follow-up • • Median response duration: 6 months Median follow-up: 7 months - 21 patients died - 6 remained alive ---> 2 CR ---> 1 PR 9 Results treatment-related toxicities (grade 3/4) GC sequence End of treatment Neutropenia 2 0 Anemia 3 1 Thrombocytopenia 2 0 Nausea/emesis 1 0 Diarrhea 0 1 10 Results Myelosuppression-related complications GC sequence End of treatment Febrile neutropenia 1 0 Platelet transfusion 1 0 RBC transfusion 11 0 Bleeding episodes 0 0 11 Conclusion • • • • Well tolerated regimen ORR is in agreement with the results of previous regimens Limited number of patients Relatively short follow-up (7 months) 12