C L Attard1, S Brown1, K Alloul2, M J Moore3. 1. Cornerstone Research Group Inc., Burlington, ON. 2. Sanofi Canada, Laval, QC. 3. Princess Margaret Hospital, Toronto, ON.
Abstract
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 second-line 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.
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 second-line 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.
Entities:
Keywords:
accord trial; chemotherapy; cost-effectiveness; folfirinox; gemcitabine; pancreatic cancer; qaly; quality-adjusted life year
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