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Improved survival with early adjuvant chemotherapy after colonic resection for stage III colonic cancer: A nationwide study
Author(s) -
Klein Mads,
Azaquoun Najah,
Jensen Benny Vittrup,
Gögenur Ismail
Publication year - 2015
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.24017
Subject(s) - medicine , colorectal cancer , adjuvant , adjuvant therapy , perioperative , stage (stratigraphy) , cancer , adjuvant chemotherapy , surgery , proportional hazards model , colonic cancer , chemotherapy , population , oncology , gastroenterology , breast cancer , paleontology , environmental health , biology
Background and Objectives In stage III colonic cancer, time from surgery to start of adjuvant chemotherapy may influence survival. In this study, we evaluated the effect of timing of adjuvant therapy on survival. Methods Database study from the Danish Colorectal Cancer Group's national database. Data on patients with stage III colonic cancer operated between January 1, 2005 and August 31, 2012 were retrieved. Perioperative variables, surgical modality, and time to adjuvant therapy (<4, 4–8, or >8 weeks) were evaluated and Cox regression was performed to identify factors influencing survival. Results The final population included 1,827 patients scheduled for adjuvant chemotherapy. Adjuvant therapy started within 4 and 8 weeks improved survival when compared to start later than 8 weeks (HR [95%CI]: 1.7 [1.1–2.6]; P = 0.024 and 1.4 [1.07–1.8]; P = 0.013, respectively), whereas there was no significant difference in survival with start after 4 versus 8 weeks (1.2 [0.8–1.8]; P = 0.37). Conclusions Survival increased when adjuvant therapy was started within 8 weeks after surgery for stage III colonic cancer. J. Surg. Oncol. 2015; 112:538–543 . © 2015 Wiley Periodicals, Inc.