Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo. Department of Epidemiology and Biostatistics, School of Integrated Health Sciences, Faculty of Medicine, The University of Tokyo.

Paper (English)

Kawahara T, Fukuda M, Oba K, Sakamoto J, Buyse M. Meta-analysis of randomized clinical trials in the era of individual patient data sharing. Int J Clin Oncol. 2018 Jan 12.
Yamazaki Y, Oba K, Matsui Y, Morimoto Y. Vasoactive-inotropic score as a predictor of morbidity and mortality in adults after cardiac surgery with cardiopulmonary bypass. J Anesth. 2018 Jan 13.
Ogura A, Akiyoshi T, Yamamoto N, Kawachi H, Ishikawa Y, Mori S, Oba K, Nagino M, Fukunaga Y, Ueno M. Pattern of programmed cell death-ligand 1 expression and CD8-positive T-cell infiltration before and after chemoradiotherapy in rectal cancer. Eur J Cancer 2018;91:11-20.
Yamada K, Muranaga S, Shinozaki T, Nakamura K, Tanaka S, Ogata, T. Age independency of mobility decrease assessed using the Locomotive Syndrome Risk Test in elderly with disability: a cross-sectional study. BMC Geriatr. 2018; 18: 28.
Hagiwara Y, Ohashi Y, Uesaka K, Boku N, Fukutomi A, Okamura Y, Konishi M, Matsumoto I, Kaneoka Y, Shimizu Y, Nakamori S, Sakamoto H, Morinaga S, Kainuma O, Imai K, Sata N, Hishinuma S, Ojima H, Yamaguchi R, Hirano S, Sudo T. Health-related quality of life of adjuvant chemotherapy with S-1 versus gemcitabine for resected pancreatic cancer: results from a randomized phase III trial (JASPAC 01). Eur J Cancer. 2018;93:79-88.
Takayasu K, Arii S, Sakamoto M, Matsuyama Y, Kudo M, Kaneko S, Nakashima O, Kadoya M, Izumi N, Takayama T, Ku Y, Kumada T, Kubo S, Kokudo T, Hagiwara Y, Kokudo N, Liver Cancer Study Group of Japan. Impact of resection and ablation for single hypovascular hepatocellular carcinoma ≤2 cm analyzed with propensity score weighting. Liver Int. 2018;38:484-493.
Takeuchi Y, Shinozaki T, Matsuyama Y. A comparison of estimators from self-controlled case series, case-crossover design, and sequence symmetry analysis for pharmacoepidemiological studies. BMC Med Res Methodol. 2018; 18: 4.
Nishizaki Y, Shinozaki T, Kinoshita K, Shimizu T, Tokuda Y. Awareness of diagnostic error among Japanese residents: a nationwide study. J Gen Int Med. 2017;33(4):445-8.
Tabuchi T, Gallus S, Shinozaki T, Nakaya T, Kunugita N, Collwel B. Heat-not-burn tobacco product use in Japan: its prevalence, predictors and perceived symptoms from exposure to secondhand heat-not-burn-tobacco aerosol. Tob Control. 2017;27:e25-e33.
Mayanagi S, Kashiwabara K, Honda M, Oba K, Aoyama T, Kanda M, Maeda H, Hamada C, Sadahiro S, Sakamoto J, Saji S, Yoshikawa T. Risk factors for peritoneal recurrence in stage II-III colon cancer. Dis Colon Rec 2017. Accepted on 10 Aug 2017.
Honda M, Oba K, Akiyoshi T, Maeda H, Kashiwabara K, Kanda M, Mayanagi S, Aoyama T, Hamada C, Sadahiro S, Fukunaga Y, Ueno M, Sakamoto J, Saji S, Yoshikawa T. Development and Validation of a Prognostic Nomogram for Colorectal Cancer after Radical Resection based on individual patient data from three large-scale phase III trials. OncoTarget 2017;8: 99150-99160.
Kanda M, Oba K, Aoyama T, Kashiwabara K, Mayanagi S, Maeda H, Honda M, Hamada C, Sadahiro S, Sakamoto J, Saji S, Yoshikawa T. Clinical Signatures of Mucinous and Poorly Differentiated Subtypes of Colorectal Adenocarcinomas by a Propensity Score Analysis of an Independent Patient Database from Three Phase III Trials. Dis Colon Rec 2017. Accepted on 31 Oct 2017.
Kawai K, Nozawa H, Hata K, Tanaka T, Nishikawa T, Oba K, Watanabe T. Optimal interval for 18F-FDG-PET after chemoradiotherapy for rectal cancer. Clin Colorectal Cancer. Available online 21 November 2017
Oba K, Horie N, Sato N, Saito K, Takeuchi T, Mimori T, Miyasaka N, Koike T, Tanaka Y. Remission induction by Raising the dose of Remicade in RA (RRRR) study: Rationale and study protocol for a randomized controlled trial comparing for sustained clinical remission after discontinuation of infliximab in patients with rheumatoid arthritis. Contemp Clin Trials Commun 2017;8:49-54.
Maeda H, Okamoto K, Oba K, Kobayashi M. Lymph node retrieval using fat dissolution technique after surgical resection of colorectal cancer: a protocol paper. Ann Can Res Ther 2017; 25: 90-1.
Takaku T, Iriyama N, Mitsumori T, Sato E, Gotoh A, Kirito K, Noguchi M, Koike M, Sakamoto J, Oba K, Komatsu N. Clinical Efficacy and Safety of First-Line Dasatinib Therapy and the Relevance of Velocity of BCR-ABL1 Transcript Decline for Achievement of Molecular Responses in Newly Diagnosed Chronic-Phase Chronic Myeloid Leukemia: Report from the Juntendo Yamanashi Cooperative Study Group. Oncology. 2017 Nov 18. doi: 10.1159/000481945. [Epub ahead of print]
Okuno K, Aoyama T, Oba K, Yokoyama N, Matsuhashi N, Kunieda K, Nishimura Y, Akamatsu H, Kobatake T, Morita S, Yoshikawa T, Sakamoto J, Saji S. Randomized phase III trial comparing surgery alone to UFT + PSK for stage II rectal cancer (JFMC38 trial). Cancer Chemother Pharmacol. 2017 Nov 1. doi: 10.1007/s00280-017-3466-7. [Epub ahead of print]
Maeda H, Kashiwabara K, Aoyama T, Oba K, Honda M, Mayanagi S, Kanda M, Hamada C, Sadahiro S, Sakamoto J, Saji S, Yoshikawa T. Hazard rate of tumor recurrence over time in patients with colon cancer: implications for postoperative surveillance from three Japanese Foundation for Multidisciplinary Treatment of Cancer (JFMC) clinical trials. J Cancer 2017; 8(19): 4057–4064.
Murai K, Yamaguchi K, Ito S, Miyagishima T, Shindo M, Wakasa K, Inomata M, Nagashima T, Kondo T, Fujimoto N, Yamamoto S, Yonezumi M, Oyake T, Kowata S, Tsukushi Y, Mine T, Meguro K, Ikeda K, Watanabe R, Saito S, Sato S, Tajima K, Chou T, Kubo K, Oba K, Sakamoto J, Ishida Y; The Inter-Michinoku Dasatinib Study Group (IMIDAS). Rapid reduction in BCR-ABL1 transcript predicts deep molecular response in dasatinib-treated chronic-phase chronic myeloid leukaemia patients. Eur J Haematol. 2017 Sep 12. doi: 10.1111/ejh.12969. [Epub ahead of print]
Arakawa K, Kawai K, Ishihara S, Hata K, Nozawa H, Oba K, Sugihara K, Watanabe T. Prognostic Significance of Peritoneal Metastasis in Stage IV Colorectal Cancer Patients With R0 Resection: A Multicenter, Retrospective Study. Dis Colon Rectum 2017;60:1041-1049.