PMID- 29872875 OWN - NLM STAT- MEDLINE DCOM- 20190801 LR - 20190801 IS - 1432-0843 (Electronic) IS - 0344-5704 (Print) IS - 0344-5704 (Linking) VI - 82 IP - 2 DP - 2018 Aug TI - Efficacy of capecitabine in patients with locally advanced or metastatic breast cancer with or without prior treatment with fluoropyrimidine: a retrospective study. PG - 275-283 LID - 10.1007/s00280-018-3617-5 [doi] AB - PURPOSE: We conducted a retrospective study to assess the outcomes of capecitabine for advanced breast cancer (ABC) after perioperative fluoropyrimidines (FPs). METHODS: The charts of patients with ABC who received capecitabine between 2008 and 2016 at the National Cancer Center Hospital (Tokyo, Japan) were reviewed. Progression-free survival (PFS), overall survival (OS), tumor response, and adverse events (AEs) were compared between two groups: an FP group (prior perioperative FP use) and a non-FP group (no prior FP use). RESULTS: Overall, 288 patients (FP n = 105; non-FP n = 183) were analyzed. The two groups had similar patient characteristics. The FP group had significantly poorer PFS than the non-FP group (multivariate hazard ratio [HR] 1.33; 95% confidence interval [CI] 1.02-1.73; p = 0.036), although the OS did not differ significantly between the groups (multivariate HR 1.00; 95% CI 0.67-1.50; p = 0.994). With different cut-off values (relapse-free interval [RFI] = 3, 4, and 5 years), multivariate HRs for PFS were 1.32-1.67 (short RFI), and 1.00-1.25 (long RFI). A trend for a larger HR in the FP group compared to the non-FP group with short RFI than in that with long RFI was also seen for OS. Response rate (RR) and disease control rate (DCR) did not differ significantly between the groups (RR in FP vs non-FP 13.8 vs 21.0%; p = 0.173; DCR 54.0 vs 59.9%; p = 0.418). No significant difference in AEs existed between the groups. CONCLUSIONS: Extra caution is needed when capecitabine is considered for patients with ABC who used perioperative FP, especially those who had early recurrence. FAU - Iizumi, Sakura AU - Iizumi S AUID- ORCID: 0000-0001-6760-152X AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. AD - Keio University Graduate School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan. FAU - Shimomura, Akihiko AU - Shimomura A AUID- ORCID: 0000-0002-2557-8170 AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. ashimomu@ncc.go.jp. FAU - Shimoi, Tatsunori AU - Shimoi T AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Sudo, Kazuki AU - Sudo K AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Noguchi, Emi AU - Noguchi E AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Yonemori, Kan AU - Yonemori K AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Shimizu, Chikako AU - Shimizu C AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Fujiwara, Yasuhiro AU - Fujiwara Y AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. FAU - Tamura, Kenji AU - Tamura K AD - Department of Breast and Medical Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan. LA - eng PT - Journal Article DEP - 20180605 PL - Germany TA - Cancer Chemother Pharmacol JT - Cancer chemotherapy and pharmacology JID - 7806519 RN - 0 (Antimetabolites, Antineoplastic) RN - 0 (Pyrimidines) RN - 6804DJ8Z9U (Capecitabine) MH - Adult MH - Aged MH - Aged, 80 and over MH - Antimetabolites, Antineoplastic/therapeutic use MH - Breast Neoplasms/*drug therapy MH - Capecitabine/*therapeutic use MH - Female MH - Humans MH - Middle Aged MH - Pyrimidines/therapeutic use MH - Retrospective Studies PMC - PMC6060805 OTO - NOTNLM OT - Breast neoplasms OT - Capecitabine OT - Efficacy OT - Fluoropyrimidine OT - Safety COIS- CONFLICT OF INTEREST: The authors have declared no conflicts of interest. ETHICAL APPROVAL: This article does not contain any interventional studies with human participants performed by any of the authors. This study was approved by the ethics committee of each participating hospital and was performed in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. INFORMED CONSENT: Informed consent was not required for this study. EDAT- 2018/06/07 06:00 MHDA- 2019/08/02 06:00 PMCR- 2018/06/05 CRDT- 2018/06/07 06:00 PHST- 2017/11/15 00:00 [received] PHST- 2018/05/31 00:00 [accepted] PHST- 2018/06/07 06:00 [pubmed] PHST- 2019/08/02 06:00 [medline] PHST- 2018/06/07 06:00 [entrez] PHST- 2018/06/05 00:00 [pmc-release] AID - 10.1007/s00280-018-3617-5 [pii] AID - 3617 [pii] AID - 10.1007/s00280-018-3617-5 [doi] PST - ppublish SO - Cancer Chemother Pharmacol. 2018 Aug;82(2):275-283. doi: 10.1007/s00280-018-3617-5. Epub 2018 Jun 5.