PMID- 29353332 OWN - NLM STAT- MEDLINE DCOM- 20181211 LR - 20190122 IS - 1436-3305 (Electronic) IS - 1436-3291 (Linking) VI - 21 IP - 5 DP - 2018 Sep TI - First-line chemotherapy with S-1 alone or S-1 plus cisplatin for elderly patients with advanced gastric cancer: a multicenter propensity score matched study. PG - 792-801 LID - 10.1007/s10120-018-0797-y [doi] AB - BACKGROUND: Fluoropyrimidine and platinum combination is the standard treatment for advanced or recurrent gastric cancer (AGC). However, fluoropyrimidine monotherapy is commonly used for elderly patients with AGC because of its good tolerability. METHODS: In this multicenter retrospective study, we collected clinical data of AGC patients aged 70 years or older, treated with S-1 alone or S-1 plus cisplatin (SP) as the first-line treatment between January 2009 and December 2011. Propensity score matched cohorts (PSMC) were used for reducing the confounding effects to compare efficacy and safety between the two treatment groups. Cox regression analysis was performed to clarify the prognostic factors. RESULTS: PSMC (n = 109 in each group) were selected from among 444 eligible patients (S-1 group, 210; SP group, 234); the S-1 group included more patients deemed unfit for intensive chemotherapy than the SP group (e.g., higher age, poorer PS, poor renal function). In the PSMC, patients' characteristics were comparable between groups, except the male ratio (S-1 group, 64.2%; SP group, 77.1%; p = 0.04). No significant differences were observed in either overall survival [hazard ratio (HR) 0.93, p = 0.63] or progression-free survival (HR 1.09, p = 0.61). Severe adverse events (AEs) and hospitalization due to AEs were more frequent in the SP group than in the S-1 group (p < 0.001 each). CONCLUSION: Our findings do not support the survival benefit of SP over S-1 in elderly patients with AGC. We are now conducting a prospective comparative study to optimize treatment strategy and explore applicability of the geriatric assessment for these patients. FAU - Makiyama, Akitaka AU - Makiyama A AD - Department of Hematology/Oncology, Japan Community Healthcare Organization, Kyushu Hospital, 1-8-1 Kishinoura, Yahatanishi-ku, Kitakyushu, 806-8501, Japan. makiyama20@hotmail.com. FAU - Kunieda, Kenji AU - Kunieda K AD - Department of GI Oncology, Shizuoka Cancer Center, Shizuoka, Japan. FAU - Noguchi, Masaaki AU - Noguchi M AD - Department of Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan. FAU - Kajiwara, Takeshi AU - Kajiwara T AD - Department of Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan. FAU - Tamura, Takao AU - Tamura T AD - Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan. FAU - Takeda, Koji AU - Takeda K AD - Department of Medical Oncology, Osaka City General Hospital, Osaka, Japan. FAU - Sugiyama, Junko AU - Sugiyama J AD - Department of Medical Oncology, Tonan Hospital, Sapporo, Japan. FAU - Minashi, Keiko AU - Minashi K AD - Clinical Trial Promotion Department, Chiba Cancer Center, Chiba, Japan. FAU - Moriwaki, Toshikazu AU - Moriwaki T AD - Division of Gastroenterology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan. FAU - Sugimoto, Naotoshi AU - Sugimoto N AD - Department of Medical Oncology, Osaka International Cancer Institute, Osaka, Japan. FAU - Nagase, Michitaka AU - Nagase M AD - Department of Clinical Oncology, Nagoya Red-Cross Daiichi Hospital, Nagoya, Japan. FAU - Negoro, Yuji AU - Negoro Y AD - Division of Gastroenterological Medicine, Kochi Health Sciences Center, Kochi, Japan. FAU - Tsuda, Takashi AU - Tsuda T AD - Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki, Japan. FAU - Shimodaira, Hideki AU - Shimodaira H AD - Department of Clinical Oncology, Tohoku University Hospital, Sendai, Japan. FAU - Okano, Naohiro AU - Okano N AD - Department of Medical Oncology, Kyorin University Faculty of Medicine, Tokyo, Japan. FAU - Tsuji, Akihito AU - Tsuji A AD - Department of Medical Oncology, Kagawa University Hospital, Kagawa, Japan. FAU - Sakai, Daisuke AU - Sakai D AD - Department of Frontier Science for Cancer and Chemotherapy, Osaka University Graduate School of Medicine, Osaka, Japan. FAU - Yanagihara, Kazuhiro AU - Yanagihara K AD - Department of Medical Oncology, Kansai Electric Power Hospital, Osaka, Japan. FAU - Ueda, Shinya AU - Ueda S AD - Department of Medical Oncology, Nara Hospital Kindai University School of Medicine, Ikoma, Japan. FAU - Tamura, Shingo AU - Tamura S AD - Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan. FAU - Otsu, Satoshi AU - Otsu S AD - Department of Medical Oncology and Hematology, Oita University Faculty of Medicine, Yufu, Japan. FAU - Honda, Takuya AU - Honda T AD - Department of Clinical Oncology Center, Nagasaki University Hospital, Nagasaki, Japan. FAU - Matsushita, Yuzo AU - Matsushita Y AD - Department of Medical Oncology, Hamanomachi Hospital, Fukuoka, Japan. FAU - Okuno, Tatsuya AU - Okuno T AD - Division of Gastroenterology, Department of Internal Medicine Graduate School of Medicine, Kobe University, Kobe, Japan. FAU - Kashiwada, Tomomi AU - Kashiwada T AD - Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan. FAU - Nozaki, Akira AU - Nozaki A AD - Department of Clinical Oncology, National Hospital Organization Kyoto Medical Center, Kyoto, Japan. FAU - Ebi, Masahide AU - Ebi M AD - Department of Gastroenterology, Aichi Medical University School of Medicine, Nagakute, Japan. FAU - Okuda, Hiroyuki AU - Okuda H AD - Department of Medical Oncology, Keiyukai Sapporo Hospital, Sapporo, Japan. FAU - Shimokawa, Mototsugu AU - Shimokawa M AD - Cancer Biostatistics Laboratory, Clinical Research Institute, National Hospital Organization Kyushu Cancer Center, Fukuoka, Japan. FAU - Hironaka, Shuichi AU - Hironaka S AD - Clinical Trial Promotion Department, Chiba Cancer Center, Chiba, Japan. FAU - Hyodo, Ichinosuke AU - Hyodo I AD - Division of Gastroenterology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan. FAU - Baba, Eishi AU - Baba E AD - Department of Comprehensive Clinical Oncology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan. FAU - Boku, Narikazu AU - Boku N AD - Division of Gastrointestinal Medical Oncology, National Cancer Center Hospital, Tokyo, Japan. FAU - Muro, Kei AU - Muro K AD - Department of Clinical Oncology and Outpatient Treatment Center, Aichi Cancer Center Hospital, Nagoya, Japan. FAU - Esaki, Taito AU - Esaki T AD - Department of Gastrointestinal and Medical Oncology, National Kyushu Cancer Center, Fukuoka, Japan. LA - eng PT - Clinical Trial PT - Journal Article PT - Multicenter Study DEP - 20180120 PL - Japan TA - Gastric Cancer JT - Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association JID - 100886238 RN - 0 (Drug Combinations) RN - 150863-82-4 (S 1 (combination)) RN - 1548R74NSZ (Tegafur) RN - 5VT6420TIG (Oxonic Acid) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - Aged MH - Antineoplastic Combined Chemotherapy Protocols/adverse effects/*therapeutic use MH - Cisplatin/administration & dosage MH - Disease-Free Survival MH - Drug Combinations MH - Female MH - Humans MH - Male MH - Multivariate Analysis MH - Oxonic Acid/administration & dosage/therapeutic use MH - Propensity Score MH - Stomach Neoplasms/*drug therapy/*mortality/pathology MH - Tegafur/administration & dosage/therapeutic use MH - Treatment Outcome OTO - NOTNLM OT - Cisplatin OT - Elderly patients OT - Gastric cancer OT - Propensity score matching method (3-5 words) OT - S-1 EDAT- 2018/01/22 06:00 MHDA- 2018/12/12 06:00 CRDT- 2018/01/22 06:00 PHST- 2017/10/03 00:00 [received] PHST- 2018/01/14 00:00 [accepted] PHST- 2018/01/22 06:00 [pubmed] PHST- 2018/12/12 06:00 [medline] PHST- 2018/01/22 06:00 [entrez] AID - 10.1007/s10120-018-0797-y [pii] AID - 10.1007/s10120-018-0797-y [doi] PST - ppublish SO - Gastric Cancer. 2018 Sep;21(5):792-801. doi: 10.1007/s10120-018-0797-y. Epub 2018 Jan 20.