title: The impact of prior platinum therapy on survival in patients with metastatic urothelial cancer receiving vinflunine.
abstract: BACKGROUND
  A phase III trial demonstrated an overall survival advantage with the addition of vinflunine to best supportive care (BSC) in platinum-refractory advanced urothelial cancer. We subsequently examined the impact of an additional 2 years of survival follow-up and evaluated the influence of first-line platinum therapy on survival.
  
  
  METHODS
  The 357 eligible patients from the phase III study were categorised into two cohorts depending on prior cisplatin treatment: cisplatin or non-cisplatin. Survival was calculated using the Kaplan-Meier method.
  
  
  RESULTS
  The majority had received prior cisplatin (70.3%). Survival was higher in the cisplatin group (HR: 0.76; CI 95% 0.58-0.99; P=0.04) irrespective of treatment arm. Multivariate analysis including known prognostic factors (liver involvement, haemoglobin, performance status) and prior platinum administration did not show an independent effect of cisplatin. Vinflunine reduced the risk of death by 24% in the cisplatin-group (HR: 0.76; CI 95% 0.58-0.99; P=0.04) and by 35% in non-cisplatin patients (HR: 0.65; CI 95% 0.41-1.04; P=0.07).
  
  
  CONCLUSIONS
  Differences in prognostic factors between patients who can receive prior cisplatin and those who cannot may explain the survival differences in patients who undergo second line therapy. Prior cisplatin administration did not diminish the subsequent benefit of vinflunine over BSC.
authors.affiliation: Bladder Cancer Center at the Lank Center for Genitourinary Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Harvard Medical School, 450 Brookline Avenue, 1230 DANA, Boston, MA 02215, USA.
authors.forename: L C
authors.initials: LC
authors.lastname: Harshman
authors.forename: R
authors.initials: R
authors.lastname: Fougeray
authors.forename: T K
authors.initials: TK
authors.lastname: Choueiri
authors.forename: F A
authors.initials: FA
authors.lastname: Schutz
authors.forename: Y
authors.initials: Y
authors.lastname: Salhi
authors.forename: J E
authors.initials: JE
authors.lastname: Rosenberg
authors.forename: J
authors.initials: J
authors.lastname: Bellmunt
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002295:Carcinoma, Transitional Cell / Q000188:drug therapy* / Q000401:mortality* / Q000473:pathology; D017024:Chemotherapy, Adjuvant; D002945:Cisplatin / Q000627:therapeutic use*; D015331:Cohort Studies; D019008:Drug Resistance, Neoplasm; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D016019:Survival Analysis; D001749:Urinary Bladder Neoplasms / Q000188:drug therapy* / Q000401:mortality* / Q000473:pathology; D019459:Urothelium / Q000473:pathology; D014747:Vinblastine / Q000031:analogs & derivatives* / Q000627:therapeutic use
chemical_list: D000970:Antineoplastic Agents; C111217:vinflunine; D014747:Vinblastine; D002945:Cisplatin