title: Does health-related quality of life improve for advanced pancreatic cancer patients who respond to gemcitabine? Analysis of a randomized phase III trial of the cancer and leukemia group B (CALGB 80303).
abstract: BACKGROUND
  Gemcitabine for advanced pancreatic cancer (APC) is palliative and the prognosis is poor, making health-related quality of life (HRQOL) particularly important.
  
  
  OBJECTIVE
  We evaluated HRQOL with the EuroQol (EQ-5D™) in patients with APC participating in Cancer and Leukemia Group B 80303, a multicenter, double-blind, randomized trial comparing overall survival (OS) between two treatment arms: gemcitabine with bevacizumab or gemcitabine with placebo.
  
  
  METHODS
  A consecutive subsample of patients was invited to complete the EQ-5D surveys. Because neither clinical nor HRQOL outcomes differed based on the study arm, analyses were pooled. Changes in mean scores from baseline to eight weeks and the prognostic value of the EQ-5D were evaluated.
  
  
  RESULTS
  Mean index scores remained stable (0.78 at baseline [n=267], 0.79 at eight weeks [n=186], P=0.34, Wilcoxon signed rank test), attributable to a modest deterioration of physical function domain scores coincident with small improvements in pain and anxiety/depression scores. A small decline in visual analogue scale scores was observed (70.7 vs. 68.2, P=0.026). HRQOL changes within chemotherapy response strata revealed stable index scores but a trend of worsened physical function among patients with disease progression compared with those with stable or improved disease. Visual analogue scale scores trended downward over time irrespective of chemotherapy response status, with a statistically meaningful deterioration in patients who progressed (68.9 vs. 64.4, P=0.029). Baseline scores from both EQ-5D scales were significant predictors of OS in Cox proportional hazard models.
  
  
  CONCLUSIONS
  Response to gemcitabine treatment in APC is not associated with appreciable improvement of global HRQOL. Small improvements in pain and mood are observed despite progressive functional decline. Those who respond to gemcitabine may experience a slight slowing of functional deterioration.
authors: Massachusetts General Hospital, Harvard School of Public Health, Boston, Massachusetts, USA.
authors: Dorothy
authors: D
authors: Romanus
authors: Hedy L
authors: HL
authors: Kindler
authors: Laura
authors: L
authors: Archer
authors: Ethan
authors: E
authors: Basch
authors: Donna
authors: D
authors: Niedzwiecki
authors: Jane
authors: J
authors: Weeks
authors: Deborah
authors: D
authors: Schrag
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000964:Antimetabolites, Antineoplastic / Q000627:therapeutic use; D003841:Deoxycytidine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000453:epidemiology* / Q000517:prevention & control*; D010166:Palliative Care / Q000379:methods / Q000706:statistics & numerical data*; D010190:Pancreatic Neoplasms / Q000188:drug therapy* / Q000401:mortality*; D015995:Prevalence; D011788:Quality of Life; D018570:Risk Assessment; D012307:Risk Factors; D016019:Survival Analysis; D015996:Survival Rate; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology; D000093542:Gemcitabine
chemical_list: D000964:Antimetabolites, Antineoplastic; D003841:Deoxycytidine; D000093542:Gemcitabine