Journal of personalized medicine · 2021
Gender Differences in Patients with Metastatic Pancreatic Cancer Who Received FOLFIRINOX.
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Kim Jinkook, Ji Eunjeong, Jung Kwangrok, Jung In Ho, Park Jaewoo, Lee Jong-Chan, Kim Jin Won, Hwang Jin-Hyeok, Kim Jaihwan
Аннотация
BACKGROUND: The combination of 5-fluorouracil, leucovorin, irinotecan, and oxaliplatin (FOLFIRINOX) is a very effective chemotherapeutic regimen for unresectable pancreatic cancer. Previous studies have reported that female gender may be a predictor of a better response to FOLFIRINOX. This study was aimed at investigating the clinical outcomes and dose modification patterns of FOLFIRINOX by gender.
METHODS: Patients with metastatic pancreatic cancer (MPC) who began FOLFIRINOX as the first-line therapy at Seoul National University Bundang Hospital between 2013 and 2018 were enrolled. The patients received at least four chemotherapy cycles. Local regression and a linear mixed model were used to analyze dose modification patterns by gender.
RESULTS: Ninety-seven patients with MPC (54 men; 43 women) were enrolled. In the first FOLFIRINOX cycle, there were significant differences in age and body surface area between the genders (58.8 (men) and 64.9 years (women), p = 0.005; 1.7 (men) and 1.6 m2 (women), p < 0.001, respectively). The median progression-free survival (PFS) and overall survival (OS) were 10.8 and 18.0 months, respectively. There was a trend of longer PFS (10.3 (men) and 11.9 months (women), p = 0.153) and a significantly longer OS (17.9 (men) and 25.9 months (women), p = 0.019) in female patients. During the first year of FOLFIRINOX treatment, there was a significant difference of the age-corrected dose reduction pattern by gender (a mean of 95.6% dose at the initial cycle and -0.35% of dose reduction per week in men versus a mean of 90.7% dose at the initial cycle and -0.53% of dose reduction per week in women, p-value of the slope: <0.001). There was no difference in the adverse event rates between the genders.
CONCLUSIONS: Female patients showed longer OS despite a more rapid dose reduction during each cycle. Gender differences should be considered during FOLFIRINOX treatment.
METHODS: Patients with metastatic pancreatic cancer (MPC) who began FOLFIRINOX as the first-line therapy at Seoul National University Bundang Hospital between 2013 and 2018 were enrolled. The patients received at least four chemotherapy cycles. Local regression and a linear mixed model were used to analyze dose modification patterns by gender.
RESULTS: Ninety-seven patients with MPC (54 men; 43 women) were enrolled. In the first FOLFIRINOX cycle, there were significant differences in age and body surface area between the genders (58.8 (men) and 64.9 years (women), p = 0.005; 1.7 (men) and 1.6 m2 (women), p < 0.001, respectively). The median progression-free survival (PFS) and overall survival (OS) were 10.8 and 18.0 months, respectively. There was a trend of longer PFS (10.3 (men) and 11.9 months (women), p = 0.153) and a significantly longer OS (17.9 (men) and 25.9 months (women), p = 0.019) in female patients. During the first year of FOLFIRINOX treatment, there was a significant difference of the age-corrected dose reduction pattern by gender (a mean of 95.6% dose at the initial cycle and -0.35% of dose reduction per week in men versus a mean of 90.7% dose at the initial cycle and -0.53% of dose reduction per week in women, p-value of the slope: <0.001). There was no difference in the adverse event rates between the genders.
CONCLUSIONS: Female patients showed longer OS despite a more rapid dose reduction during each cycle. Gender differences should be considered during FOLFIRINOX treatment.