Adjuvant S-1 vs gemcitabine for node-positive perihilar cholangiocarcinoma: A propensity score-adjusted analysis.
S-1
adjuvant therapy
gemcitabine
perihilar cholangiocarcinoma
Journal
Journal of hepato-biliary-pancreatic sciences
ISSN: 1868-6982
Titre abrégé: J Hepatobiliary Pancreat Sci
Pays: Japan
ID NLM: 101528587
Informations de publication
Date de publication:
Sep 2021
Sep 2021
Historique:
revised:
10
05
2021
received:
20
12
2020
accepted:
29
05
2021
pubmed:
5
6
2021
medline:
16
10
2021
entrez:
4
6
2021
Statut:
ppublish
Résumé
The efficacy of adjuvant chemotherapy for biliary cancers remains controversial because of conflicting results from previous phase 3 studies that used different key drugs and enrolled patients with heterogeneous tumor sites and disease stages. Fluoropyrimidine seems more beneficial than gemcitabine (GEM) combination regimens in the adjuvant setting; however, data comparing the survival benefit between GEM- and fluoropyrimidine-based regimens are lacking. Patients who underwent resection for node-positive perihilar cholangiocarcinoma were included. The patients who underwent adjuvant chemotherapy were divided into the S-1 and GEM groups according to the regimen. The recurrence-free survival (RFS) and the overall survival (OS) were compared between the groups and adjusted with propensity scores generated from 14 potentially confounding clinicopathological factors. In total, 186 patients (Surgery alone, n = 71; S-1, n = 60; GEM, n = 55) were included. The S-1 and GEM completion rates were 75% and 65%, respectively. Among the patients who underwent adjuvant therapy, the RFS was longer in the S-1 group patients than the GEM group patients (median, 24.4 months vs 14.9 months; P = .044) whereas the OS was not significantly different between the groups (median, 48.5 months vs 35.0 months; P = .324). After propensity score adjustment, the differences in RFS and OS between the groups were more evident (HR: 2.696, 95% CI: 1.739-4.180 P < .001; HR: 1.988, 95% CI: 1.221-3.238, P < .001, respectively). Compared with adjuvant GEM monotherapy, adjuvant S-1 monotherapy may improve survival in node-positive perihilar cholangiocarcinoma patients.
Sections du résumé
BACKGROUND
BACKGROUND
The efficacy of adjuvant chemotherapy for biliary cancers remains controversial because of conflicting results from previous phase 3 studies that used different key drugs and enrolled patients with heterogeneous tumor sites and disease stages. Fluoropyrimidine seems more beneficial than gemcitabine (GEM) combination regimens in the adjuvant setting; however, data comparing the survival benefit between GEM- and fluoropyrimidine-based regimens are lacking.
METHODS
METHODS
Patients who underwent resection for node-positive perihilar cholangiocarcinoma were included. The patients who underwent adjuvant chemotherapy were divided into the S-1 and GEM groups according to the regimen. The recurrence-free survival (RFS) and the overall survival (OS) were compared between the groups and adjusted with propensity scores generated from 14 potentially confounding clinicopathological factors.
RESULTS
RESULTS
In total, 186 patients (Surgery alone, n = 71; S-1, n = 60; GEM, n = 55) were included. The S-1 and GEM completion rates were 75% and 65%, respectively. Among the patients who underwent adjuvant therapy, the RFS was longer in the S-1 group patients than the GEM group patients (median, 24.4 months vs 14.9 months; P = .044) whereas the OS was not significantly different between the groups (median, 48.5 months vs 35.0 months; P = .324). After propensity score adjustment, the differences in RFS and OS between the groups were more evident (HR: 2.696, 95% CI: 1.739-4.180 P < .001; HR: 1.988, 95% CI: 1.221-3.238, P < .001, respectively).
CONCLUSIONS
CONCLUSIONS
Compared with adjuvant GEM monotherapy, adjuvant S-1 monotherapy may improve survival in node-positive perihilar cholangiocarcinoma patients.
Substances chimiques
Deoxycytidine
0W860991D6
Gemcitabine
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
716-726Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2021 Japanese Society of Hepato-Biliary-Pancreatic Surgery.
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