Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan

Abstract Objective Studies have rarely explored the efficacy of S‐1 in treating advanced pancreatic cancer outside Japan. This study compared the survival outcomes of patients with advanced pancreatic cancer treated with S‐1 with the survival outcomes of those without S‐1 treatment before and after...

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Main Authors: Hsiang‐Lan Lai, Yen‐Yang Chen, Chang‐Hsien Lu, Chia‐Yen Hung, Yung‐Chia Kuo, Jen‐Shi Chen, Hung‐Chih Hsu, Ping‐Tsung Chen, Pei‐Hung Chang, Yu‐Shin Hung, Wen‐Chi Chou
Format: Article
Language:English
Published: Wiley 2019-05-01
Series:Cancer Medicine
Subjects:
Online Access:https://doi.org/10.1002/cam4.2094
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author Hsiang‐Lan Lai
Yen‐Yang Chen
Chang‐Hsien Lu
Chia‐Yen Hung
Yung‐Chia Kuo
Jen‐Shi Chen
Hung‐Chih Hsu
Ping‐Tsung Chen
Pei‐Hung Chang
Yu‐Shin Hung
Wen‐Chi Chou
author_facet Hsiang‐Lan Lai
Yen‐Yang Chen
Chang‐Hsien Lu
Chia‐Yen Hung
Yung‐Chia Kuo
Jen‐Shi Chen
Hung‐Chih Hsu
Ping‐Tsung Chen
Pei‐Hung Chang
Yu‐Shin Hung
Wen‐Chi Chou
author_sort Hsiang‐Lan Lai
collection DOAJ
description Abstract Objective Studies have rarely explored the efficacy of S‐1 in treating advanced pancreatic cancer outside Japan. This study compared the survival outcomes of patients with advanced pancreatic cancer treated with S‐1 with the survival outcomes of those without S‐1 treatment before and after S‐1 reimbursement was introduced in Taiwan in June of 2014. Method We retrospectively analyzed 838 patients with locally advanced or metastatic pancreatic cancer who underwent palliative chemotherapy from 2010 to 2016 at 4 institutes in Taiwan. For survival analysis, patients were categorized into two groups according to whether they received S‐1 treatment as palliative chemotherapy after diagnosis: (a) S‐1‐treated (n = 335) and (b) non‐S‐1‐treated (n = 503) groups. Results The median overall survival was longer in the S‐1‐treated group than in the non‐S‐1‐treated group (10.7 vs 6.0 mo, P < 0.001). Subgroup survival analyses showed that the S‐1‐treated group had more favorable outcomes than the non‐S‐1‐treated group in terms of stage III (19.6 vs 10.1 mo, P < 0.001) and stage IV (8.5 vs 5.3 mo, P < 0.001) disease. The disease control rates were 43.6% and 32.8% (P < 0.001) in patients treated with and without S‐1 in the first‐line setting, respectively. In multivariate analysis, exposure to S‐1 treatment was an independent prognosticator for survival. Conclusion Our results support the clinical use of S‐1 as the treatment of choice for patients with locally advanced or metastatic pancreatic cancer, particularly in resource‐limited situations.
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spelling doaj.art-8961c7e318354b0f8d36b67ef0e76d182024-03-28T10:30:35ZengWileyCancer Medicine2045-76342019-05-01852085209410.1002/cam4.2094Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in TaiwanHsiang‐Lan Lai0Yen‐Yang Chen1Chang‐Hsien Lu2Chia‐Yen Hung3Yung‐Chia Kuo4Jen‐Shi Chen5Hung‐Chih Hsu6Ping‐Tsung Chen7Pei‐Hung Chang8Yu‐Shin Hung9Wen‐Chi Chou10Division of Oncology Chang Gung Memorial Hospital at Kaohsiung Kaohsiung TaiwanDivision of Oncology Chang Gung Memorial Hospital at Kaohsiung Kaohsiung TaiwanDivision of Oncology Chang Gung Memorial Hospital at Chiayi Chiayi TaiwanDivision of Oncology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanDivision of Oncology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanDivision of Oncology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanDivision of Oncology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanDivision of Oncology Chang Gung Memorial Hospital at Chiayi Chiayi TaiwanDivision of Oncology Chang Gung Memorial Hospital at Keelung Keelung TaiwanDivision of Hematology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanDivision of Oncology Chang Gung Memorial Hospital at Linkou Taoyuan TaiwanAbstract Objective Studies have rarely explored the efficacy of S‐1 in treating advanced pancreatic cancer outside Japan. This study compared the survival outcomes of patients with advanced pancreatic cancer treated with S‐1 with the survival outcomes of those without S‐1 treatment before and after S‐1 reimbursement was introduced in Taiwan in June of 2014. Method We retrospectively analyzed 838 patients with locally advanced or metastatic pancreatic cancer who underwent palliative chemotherapy from 2010 to 2016 at 4 institutes in Taiwan. For survival analysis, patients were categorized into two groups according to whether they received S‐1 treatment as palliative chemotherapy after diagnosis: (a) S‐1‐treated (n = 335) and (b) non‐S‐1‐treated (n = 503) groups. Results The median overall survival was longer in the S‐1‐treated group than in the non‐S‐1‐treated group (10.7 vs 6.0 mo, P < 0.001). Subgroup survival analyses showed that the S‐1‐treated group had more favorable outcomes than the non‐S‐1‐treated group in terms of stage III (19.6 vs 10.1 mo, P < 0.001) and stage IV (8.5 vs 5.3 mo, P < 0.001) disease. The disease control rates were 43.6% and 32.8% (P < 0.001) in patients treated with and without S‐1 in the first‐line setting, respectively. In multivariate analysis, exposure to S‐1 treatment was an independent prognosticator for survival. Conclusion Our results support the clinical use of S‐1 as the treatment of choice for patients with locally advanced or metastatic pancreatic cancer, particularly in resource‐limited situations.https://doi.org/10.1002/cam4.2094palliative chemotherapypancreatic cancerS‐1survival outcome
spellingShingle Hsiang‐Lan Lai
Yen‐Yang Chen
Chang‐Hsien Lu
Chia‐Yen Hung
Yung‐Chia Kuo
Jen‐Shi Chen
Hung‐Chih Hsu
Ping‐Tsung Chen
Pei‐Hung Chang
Yu‐Shin Hung
Wen‐Chi Chou
Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
Cancer Medicine
palliative chemotherapy
pancreatic cancer
S‐1
survival outcome
title Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
title_full Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
title_fullStr Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
title_full_unstemmed Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
title_short Effect of S‐1 on survival outcomes in 838 patients with advanced pancreatic cancer: A 7‐year multicenter observational cohort study in Taiwan
title_sort effect of s 1 on survival outcomes in 838 patients with advanced pancreatic cancer a 7 year multicenter observational cohort study in taiwan
topic palliative chemotherapy
pancreatic cancer
S‐1
survival outcome
url https://doi.org/10.1002/cam4.2094
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