Cost-effectiveness of FOLFIRINOX for first-line treatment of metastatic pancreatic cancer

[摘要] Background The accord 11/0402 trial demonstrated that folfirinox (5-fluorouracil, leucovorin, irinotecan, oxaliplatin) is significantly more efficacious than gemcitabine monotherapy in the first-line treatment of metastatic pancreatic cancer (mpc). The present study assessed the cost-effectiveness of first-line folfirinox compared with first-line gemcitabine for public payers in Canada. Methods A Markov model simulated the movement of mpc patients from first-line treatment until death. Overall survival (os) and progression-free survival (pfs) data were derived from accord. Published utility data and Canadian costs were applied based on time in each health state and on treatment-related adverse event (ae) rates. Costs included first- and secondline therapy, monitoring, and costs to treat aes. Two separate analyses were performed. Analysis 1 was based on trial data [first-line folfirinox followed by second-line gemcitabine compared with first-line gemcitabine followed by second-line platinum-based chemotherapy, with use of granulocyte colony– stimulating factor (g-csf) allowed], and analysis 2 used Ontario treatment patterns before folfirinox funding (first-line folfirinox followed by second-line gemcitabine compared with first-line gemcitabine followed by best supportive care, no use of g-csf). Results Compared with first-line gemcitabine, first-line folfirinox resulted in more life-years and quality adjusted life-years (qalys). Probabilistic sensitivity analysis results showed that, for analyses 1 and 2 respectively, folfirinox has a greater than 85% probability and an approximately 80% probability of being cost-effective at the $100,000 threshold. Conclusions Compared with gemcitabine, first-line folfirinox significantly prolongs median os. Given the favourable cost per qaly, the improvement in clinical efficacy, and the limited available treatment options, folfirinox represents an attractive cost-effective treatment for mpc.

[学科分类] 肿瘤学

[关键词] folfirinox;gemcitabine;cost-effectiveness;pancreatic cancer;accord trial;chemotherapy;qualityadjusted life year;qaly