スタッフ紹介

准教授 /
北海道大学病院腫瘍センター診療教授
小松 嘉人

Yoshito Komatsu

専門分野

臨床腫瘍学消化器腫瘍(消化器癌・GIST等)・薬物療法
臨床試験(消化器癌・薬物療法)

准教授 小松 嘉人

学歴

1983年3月
函館ラサール高校卒業
1989年3月
東京医科大学医学部医学科卒業
2001年6月
北海道大学大学院医学研究科消化器内科学専攻医学博士号取得

職務経歴

1989年5月
北海道大学医学部第3内科 研修医
1990年4月
市立稚内病院内科 医師
1993年4月
国立がんセンター中央病院薬物療法部 レジデント
1996年4月
北海道大学附属病院第3内科 医員
1998年4月
札幌拘置所医務課 医務課長
2001年4月
北海道大学大学院医学研究科第3内科 助手
2004年4月
北海道大学大学院医学研究科腫瘍内科 助手
2006年4月
北海道大学病院地域医療連携センター 副センター長・講師
2007年12月
北海道大学病院外来治療センター センター長・准教授
2008年1月
北海道大学病院腫瘍センター 副センター長・化学療法部部長
2011年4月
北海道大学病院腫瘍センター 副センター長・化学療法部部長・診療教授
2018年10月
北海道大学病院腫瘍センター化学療法部/CancerBoard部部長・診療教授

所属学会・資格

  • 日本内科学会 認定内科医・指導医
  • 日本消化器病学会 専門医・指導医・評議員
  • 日本消化器内視鏡学会 専門医・指導医・支部評議員
  • 日本胃癌学会・代議員
  • 日本癌学会
  • 日本癌治療学会 臨床試験登録医・代議員
  • 日本臨床腫瘍学会 評議員
  • 日本緩和医療学会
  • 日本消化管学会 胃腸科専門医・指導医
  • がん治療認定機構 がん治療認定医・暫定教育医
  • 国際胃癌学会(IGCC:active member)
  • 欧州臨床腫瘍学会(ESMO: active member)
  • 米国臨床腫瘍学会(ASCO: active member)
  • 日本がん臨床試験推進機構(JACCRO) 理事
  • 北海道消化器癌化学療法研究会 代表理事
  • 日本がんサポーティブ学会 評議員

受賞歴

  • 2003年 17th Asia Pacific Cancer Conference Best Poster Award
  • 2009年 第47回日本癌治療学会総会 優秀演題賞
  • 2018年 ESMO 2017 Preferred Paper Session(Oral)Best paper

趣味

トレッキング、登山、旅行、キャンプ、映画鑑賞、クラシック鑑賞

抱負・夢

北海道から世界へ:がん薬物療法をupdateし、最先端医療を届ける


現在、日本人の2人に1人ががんに罹患し、その中でも進行消化器がんは最大の難敵です。私たちは「北海道をがん治療の後進国にしない、世界の先進国へ押し上げる」という強い信念のもと、全国規模の新薬開発治験や国際共同試験にどこよりも積極的に参画し、最先端の新薬が、日本で最初に北海道の患者さんに届く環境を追求してきました。現在、私の所属する化療Gは北海道大学病院腫瘍センターと消化器内科が一体となった連携体制を敷いており、日々の研究を即座に臨床へ還元する臨床研究とTRを推進しています。この強固な基盤のもと、私が主宰・協働する臨床研究グループ「北海道消化器癌化学療法研究会(HGCSG)」は、北大化療Gを中心に、IRIS+BV療法を世界・本邦のガイドラインへ掲載させるなど、数々の歴史的エビデンスを創出して来ました。こうしたグループ全員の情熱は、現在、世界の消化器がん薬物療法のトップグループと言える圧倒的な実績として結実しています。当Gが参加し、私が皆を代表して責任著者または共同著者として紡ぎ出した業績は、インパクトファクター30を超える世界のトップジャーナルだけでも20本以上に達しています。


  • New England Journal of Medicine:2本(大腸癌TAS-102、胆道がんの futibatinib 治験など)
  • JAMA:1本(大腸がん一次治療のパラダイムを大きく変えた PARADIGM 試験)
  • Annals of Oncology:5本(TRICOLORE試験を含む、大腸がん化学療法の最適化)
  • Lancet Oncology:7本(FIRIS、SOLAR、JCOG1509など、胃がん・食道がんの標準治療の確立に貢献)
  • Journal of Clinical Oncology :3本(胃がん、膵癌の新治療など)
  • Nature Medicine:4本(日本のゲノム医療の基盤となった SCRUM-Japanにおける研究等)
  • Cancer Discov. 1本(Precision Medicine等)

これらトップジャーナルに名を連ね続けている事実は、私たちが地方の一研究グループに留まらず、世界のがん臨床研究を牽引する強固な実力を有していることの何よりの証明です。



【私の抱負・夢】次世代とともに、世界の頂点へ


私自身、気がつけば大学でも最古参の立場となりました。これまで培ってきた国内外のネットワークと知見を礎に、今後も引き続きグローバルな国際共同治験や臨床試験へ先陣を切って参加し、北海道に最新の医療を呼び込み続けます。そして、私の次なる大きな夢、それは「この化療Gから、世界のpivotal studyの筆頭著者を誕生させること」です。当グループには、それを成し遂げられる優秀な人材と、世界と渡り合えるだけの実力がすでに備わっています。若い先生方が世界の舞台で主役となり、次世代の医療を牽引していけるよう、私も全力で道を拓き、グループの皆とともに一丸となって夢の実現へ突き進んでいきたいと思います。

業績
(英文から抜粋)

  1. Bando H, Komatsu Y, Kato T. et al;
    Post-adjuvant chemotherapy in ctDNA-positive patients with resected colorectal cancer: a randomized phase 3 trial.
    Nature Med. 2026 Jul;32(7):2473-2480.
  2. Kawamoto Y, Sawada K, Komatsu Y. et al;
    A phase II trial of ramucirumab and docetaxel as second-line treatment for patients with advanced gastric cancer (HGCSG 1903).
    Gastric Cancer. 2026 Jul;29(4):808-815.
  3. Matsubara Y, Komatsu Y, Nakamura Y. et al;
    Effect of prior anti-EGFR therapy and baseline ctDNA profiling on the efficacy of pertuzumab plus trastuzumab in HER2-amplified metastatic colorectal cancer: an integrated analysis of TRIUMPH/MyPathway.
    ESMO Open. 2026 Jun;11(6).
  4. Saito Y, Komatsu Y, Sugawara M.
    Evaluation of nausea induced by trifluridine/tipiracil in metastatic colorectal cancer treatment.
    J Chemother. 2026 Apr;38(2):169-176.
  5. Duan Y, Komatsu Y, Yoshino T.et al;
    Prognostic Biomarkers and Immunotherapeutic Insights of Circulating Tumor DNA Analysis in Advanced Esophageal Squamous Cell Carcinoma From SCRUM-MONSTAR GOZILA Substudy.
    JCO Precis Oncol. 2026 Mar;10(3).
  6. Komatsu Y, Taira N, et al; Doi T.
    Quality-of-life outcomes with pimitespib in patients with advanced gastrointestinal stromal tumor: results from the randomized, double-blind, placebo-controlled, phase III, CHAPTER- GIST-301 study.
    ESMO Open. 2026 Mar;11(3).
  7. Harada K, Kajiura S, Komatsu Y. et al;
    Predictors of the early discontinuation of anamorelin hydrochloride in gastrointestinal cancer-related cachexia: a multicenter retrospective cohort study (HGCSG2201).
    Support Care Cancer. 2026 Feb 19;34(3):221.
  8. Nagamine M, Komatsu Y, Kuwata T. et al;
    HER2 Protein Overexpression, mRNA Expression, and DNA Amplification Across Solid Tumors: Comparison of Next-Generation Sequencing-Based Assays With Immunohistochemistry.
    JCO Precis Oncol. 2026 Jan;
  9. Harada K, Sakamoto N, Komatsu Y. et al;
    Ultrasound-detected gastric changes related to zolbetuximab-induced emesis: a case series.
    Front Oncol. 2025 Nov 28.
  10. Hashimoto T, Komatsu Y, Yoshino T. et al;
    FGFR2-IIIc isoform detection reveals prognostic prevalence and a functional link to mesenchymal transition in gastric and gastroesophageal junction cancer.
    ESMO Open. 2025 Nov;10(11).
  11. Masuishi T, Komatsu Y, Yoshino T. et al;
    A multicenter phase II study of eribulin for BRAF V600E mutant metastatic colorectal cancer: the BRAVERY study (EPOC1701).
    ESMO Open. 2025 Nov;10(11).
  12. Kawakami H, Komatsu Y, Muro K. et al;
    Phase II Study (NO LIMIT, WJOG13320G) of First-Line Nivolumab Plus Low-Dose Ipilimumab for Microsatellite Instability- High Advanced Gastric or Esophagogastric Junction Cancer.
    J Clin Oncol. 2025 Jul;43(19):2184-2195.
  13. Imaoka H, Komatsu Y, et al; Furuse J.
    Phase 1/2 study of liposomal irinotecan plus S-1 for metastatic pancreatic cancer refractory to gemcitabine-based treatment.
    Eur J Cancer. 2025 Jun 3;222:
  14. Nakamura T, Komatsu Y, Sakamoto N.et al;
    Lack of association between SLFN11 expression and treatment efficacy or survival outcomes in patients with pancreatic ductal adenocarcinoma.
    J Cancer Res Clin Oncol. 2025 May 10;151(5):159.
  15. Sawada K, Komatsu Y, Yoshino T. et al;
    Microbiome Landscape and Association with Response to Immune Checkpoint Inhibitors in Advanced Solid Tumors: A SCRUM-Japan MONSTAR-SCREEN Study.
    Cancer Res Commun. 2025 May 1;5(5):857-870.
  16. Fujisawa T, Komatsu Y, Yoshino T. et al;
    Benefits of Combining Circulating Tumor DNA With Tissue and Longitudinal Circulating Tumor DNA Genotyping in Advanced Solid Tumors: SCRUM-Japan MONSTAR-SCREEN-1 Study.
    JCO Precis Oncol. 2025.
  17. Imai M, Komatsu Y, Yoshino T. et al;
    Artificial Intelligence-Powered Human Epidermal Growth Factor Receptor 2 and Tumor Microenvironment Analysis in Human Epidermal Growth Factor Receptor 2-Amplified Metastatic Colorectal Cancer: Exploratory Analysis of Phase II TRIUMPH Trial.
    JCO Precis Oncol. 2025 Jan;
  18. Nakamura Y, Komatsu Y, Yoshino T. et al;
    Targeted therapy guided by circulating tumor DNA analysis in advanced gastrointestinal tumors.
    Nature Med. 2025 Jan;31(1):165-175.
  19. Nakatsumi H, Komatsu Y, Sakata Y. et al;
    A multicenter, prospective, phase II trial of second-line aflibercept plus FOLFIRI in patients with metastatic colorectal cancer refractory to an anti-EGFR antibody: HGCSG1801.
    Int J Cancer. 2024 Dec 15;155(12):2223-2231.
  20. Yagisawa M, Komatsu Y, Nakamura Y. et al;
    Trastuzumab Deruxtecan in Advanced Solid Tumors With Human Epidermal Growth Factor Receptor 2 Amplification Identified by Plasma Cell-Free DNA Testing: A Multicenter, Single-Arm, Phase II Basket Trial.
    J Clin Oncol. 2024 Nov 10;42(32):3817-3825.
  21. Hashimoto T, Komatsu Y, Yoshino T. et al;
    The SCRUM-MONSTAR Cancer-Omics Ecosystem: Striving for a Quantum Leap in Precision Medicine.
    Cancer Discov. 2024 Nov 1;14(11):2243-2261.
  22. Ohba A, Komatsu Y, Okusaka T. et al;
    Trastuzumab Deruxtecan in Human Epidermal Growth Factor Receptor 2-Expressing Biliary Tract Cancer (HERB; NCCH1805): A Multicenter, Single-Arm, Phase II Trial.
    J Clin Oncol. 2024 Sep 20;42(27):3207-3217.
  23. Raghav K, Komatsu Y, Yoshino T. et al;
    Trastuzumab deruxtecan in patients with HER2-positive advanced colorectal cancer (DESTINY-CRC02): primary results from a multicentre, randomised, phase 2 trial.
    Lancet Oncol. 2024 Sep;25(9):1147-1162.
  24. Osumi H, Komatsu Y, Yoshino T. et al;
    Clinical features associated with NeoRAS wild-type metastatic colorectal cancer A SCRUM-Japan GOZILA substudy.
    Nature Commun. 2024 Jul 13;15(1):
  25. Komatsu Y, Muro K, Nishida T. Large-scale, prospective observational study of regorafenib in Japanese patients with advanced gastrointestinal stromal tumors in a real-world clinical setting.
    Front Oncol. 2024 Jun.
  26. Shitara K, Komatsu Y, Yoshino T. et al;
    Baseline ctDNA gene alterations as a biomarker of survival after panitumumab and chemotherapy in metastatic colorectal cancer.
    Nature Med. 2024 Mar;30(3):730-739.
  27. Kawamoto Y, Komatsu Y, Yoshino T. et al;
    Phase II trial of niraparib for BRCA-mutated biliary tract, pancreatic and other gastrointestinal cancers: NIR-B.
    Future Oncol. 2024;20(26):1901-1907.
  28. Harada K, Yuki S, Komatsu Y. et al;
    Anti-epidermal growth factor receptor treatment for patients with NeoRAS wild-type metastatic colorectal cancer: a case report of two cases.
    Ther Adv Med Oncol. 2023.
  29. Watanabe J, Komatsu Y, Yoshino T. et al;
    Panitumumab vs Bevacizumab Added to Standard First-line Chemotherapy and Overall Survival Among Patients With RAS Wild-type, Left-Sided Metastatic Colorectal Cancer: A Randomized Clinical Trial.
    JAMA. 2023 Apr 18;329(15):1271-1282.
  30. Nakamura Y, Komatsu Y, Yoshino T. et al;
    Efficacy of Targeted Trials and Signaling Pathway Landscape in Advanced Gastrointestinal Cancers From SCRUM-Japan GI-SCREEN: A Nationwide Genomic Profiling Program.
    JCO Precis Oncol. 2023 Mar.
  31. Ozaka M, Komatsu Y, Furuse J, et al;
    Hepatobiliary and Pancreatic Oncology Group of Japan Clinical Oncology Group (JCOG). A randomised phase II study of modified FOLFIRINOX versus gemcitabine plus nab-paclitaxel for locally advanced pancreatic cancer (JCOG1407).
    Eur J Cancer. 2023 Mar;181:135-144.
  32. Goyal L, Komatsu Y, Bridgewater JA, et al;
    FOENIX-CCA2 Study Investigators. Futibatinib for FGFR2-Rearranged Intrahepatic Cholangiocarcinoma.
    N Engl J Med. 2023 Jan 19;388(3):228-239.
  33. Nakamura M, Ishiguro A, Komatsu Y. et al;
    Feasibility of edoxaban for asymptomatic cancer-associated thrombosis in Japanese patients with gastrointestinal cancer: ExCAVE study.
    BMC Cancer. 2022 Dec 16;22(1):1322.
  34. Nakatsumi H, Komatsu Y, Sakata Y. et al;
    Study protocol for HGCSG1801: A multicenter, prospective, phase II trial of second-line FOLFIRI plus aflibercept in patients with metastatic colorectal cancer refractory to anti-EGFR antibodies.
    Front Oncol. 2022 Nov.
  35. Komatsu Y, Shimokawa T, Kasahara K. et al;
    An open-label, crossover study to compare different formulations and evaluate effect of food on pharmacokinetics of pimitespib in patients with advanced solid tumors.
    Invest New Drugs. 2022 Oct;40(5):1011-1020.
  36. Kurokawa Y, Komatsu Y, Doi T.et al;
    Pimitespib in patients with advanced gastrointestinal stromal tumor (CHAPTER-GIST-301): a randomized, double-blind, placebo-controlled phase III trial.
    Ann Oncol. 2022 Sep;33(9):959-967.
  37. Kawamoto Y, Yuki S, Komatsu Y. et al;
    Phase II Study of Ramucirumab Plus Irinotecan Combination Therapy as Second-Line Treatment in Patients with Advanced Gastric Cancer: HGCSG1603.
    Oncologist. 2022 Aug 5;27(8):e642-e649.
  38. Nakano S, Kawamoto Y, Komatsu Y. et al;
    Study protocol of the HGCSG1803: a phase II multicentre, non- randomised, single-arm, prospective trial of combination chemotherapy with oxaliplatin, irinotecan and S-1 (OX-IRIS) as first-line treatment for metastatic or relapsed pancreatic cancer.
    BMJ Open. 2022 May 9;12(5):
  39. Kawamoto Y, Yuki S, Komatsu Y. et al;
    Phase II Study of Continued Trastuzumab Plus Irinotecan in Patients with HER2-positive Gastric Cancer Previously Treated with Trastuzumab (HGCSG 1201).
    Oncologist. 2022 May 6;27(5):340-e374.
  40. Komatsu Y, Hironaka S, Boku N. et al;
    Treatment Pattern for Advanced Gastric Cancer in Japan and Factors Associated with Sequential Treatment: A Retrospective Administrative Claims Database Study.
    Adv Ther. 2022 Jan;39(1):296-313.
  41. Nakamura Y, Komatsu Y, Yoshino T. et al;
    Circulating tumor DNA-guided treatment with pertuzumab plus trastuzumab for HER2-amplified metastatic colorectal cancer: a phase 2 trial.
    Nature Med. 2021 Nov;27(11):1899-1903.
  42. Kawamoto Y, Nakatsumi H, Komatsu Y. et al;
    A Phase I Trial of Oxaliplatin, Irinotecan, and S-1 Combination Therapy (OX-IRIS) as Chemotherapy for Unresectable Pancreatic Cancer (HGCSG 1403).
    Oncologist. 2021 Oct;26(10):e1675-e1682.
  43. Siena S, Komatsu Y, Yoshino T,et al;
    DESTINY-CRC01 investigators. Trastuzumab deruxtecan (DS-8201) in patients with HER2-expressing metastatic colorectal cancer (DESTINY-CRC01): a multicentre, open-label, phase 2 trial.
    Lancet Oncol. 2021 Jun;22(6):779-789.
  44. Nakamura Y, Komatsu Y, Yoshino T. et al;
    Clinical utility of circulating tumor DNA sequencing in advanced gastrointestinal cancer: SCRUM-Japan GI-SCREEN and GOZILA studies.
    Nature Med. 2020 Dec;26(12):1859-1864.
  45. Yoshino T, Komatsu Y, Lenz HJ. et al;
    Neutropenia and survival outcomes in metastatic colorectal cancer patients treated with trifluridine/tipiracil in the RECOURSE and J003 trials.
    Ann Oncol. 2020 Jan;31(1):88-95.
  46. Yuki S, Komatsu Y, Mori M.et al;
    Multicenter phase II study of SOX plus trastuzumab for patients with HER2+ metastatic or recurrent gastric cancer: KSCC/HGCSG/CCOG/PerSeUS 1501B.
    Cancer Chemother Pharmacol. 2020 Jan;85(1):217-223.
  47. Boku N, Komatsu Y, Kang YK. et al;
    Safety and efficacy of nivolumab in combination with S-1/capecitabine plus oxaliplatin in patients with previously untreated, unresectable, advanced, or recurrent gastric/gastroesophageal junction cancer: interim results of a randomized, phase II trial (ATTRACTION-4).
    Ann Oncol. 2019 Feb 1;30(2):250-258.
  48. Shitara K, Komatsu Y, Yoshino T. et al;
    REVERCE: a randomized phase II study of regorafenib followed by cetuximab versus the reverse sequence for previously treated metastatic colorectal cancer patients.
    Ann Oncol. 2019 Feb 1;30(2):259-265.
  49. Bando H, Komatsu Y, Yoshino T, et al;
    A multicentre, prospective study of plasma circulating tumour DNA test for detecting RAS mutation in patients with metastatic colorectal cancer.
    Br J Cancer. 2019 May;120(10):982-986.
  50. Bando H, Komatsu Y, Shitara K, et al;
    A phase II study of nab-paclitaxel in combination with ramucirumab in patients with previously treated advanced gastric cancer.
    Eur J Cancer. 2018 Mar;91:86-91./span>
  51. Yamada Y, Komatsu Y, Ishioka C et al;
    S-1 and irinotecan plus bevacizumab versus mFOLFOX6 or CapeOX plus bevacizumab as first-line treatment in patients with metastatic colorectal cancer (TRICOLORE): a randomized, open-label, phase III, noninferiority trial.
    Ann Oncol. 2018 Mar 1;29(3):624-631.
  52. Kobayashi T, Komatsu Y, Sakamoto N.et al;
    Decreased RNA-binding motif 5 expression is associated with tumor progression in gastric cancer.
    Tumour Biol. 2017 Mar;39(3):1010428317694547.
  53. Nakamura M, Yuki S, Komatsu Y et al;
    A Prospective Observational Study on Effect of Short-Term Periodic Steroid Premedication on Bone Metabolism in Gastrointestinal Cancer (ESPRESSO-01).
    Oncologist. 2017 May;22(5):592-600.
  54. Yoshino T, Komatsu Y, Muro K.et al;
    Rationale for and Design of the PARADIGM Study: Randomized Phase III Study of mFOLFOX6 Plus Bevacizumab or Panitumumab in Chemotherapy-na?ve Patients With RAS (KRAS/NRAS) Wild-type, Metastatic Colorectal Cancer.
    Clin Colorectal Cancer. 2017 Jun;16(2):158-163.
  55. Hayashi H, Komatsu Y, Okusaka T.et al;
    Utility of Assessing the Number of Mutated KRAS, CDKN2A, TP53, and SMAD4 Genes Using a Targeted Deep Sequencing Assay as a Prognostic Biomarker for Pancreatic Cancer.
    Pancreas. 2017 Mar;46(3):335-340.
  56. Ioka T, Komatsu Y, Sakata Y.et al;
    Randomised phase II trial of irinotecan plus S-1 in patients with gemcitabine-refractory pancreatic cancer.
    Br J Cancer. 2017 Feb 14;116(4):464-471.
  57. Muranaka T, Komatsu Y, Sakamoto N.et al;
    Efficacy and Safety of Bolus 5-Fluorouracil and L-Leucovorin as Salvage Chemotherapy for Oral Fluoropyrimidine-Resistant Unresectable or Recurrent Gastric Cancer: A Single Center Experience.
    J Gastric Cancer. 2016 Sep;16(3):177-181.
  58. Hayashi H, Komatsu Y, Fujinaga A.et al;
    Cytomegalovirus colitis in a patient undergoing postoperative adjuvant chemotherapy for lung adenocarcinoma with uracil-tegafur.
    J Infect Chemother. 2016 Dec;22(12):826-829.
  59. Hofheinz RD, Komatsu Y, Jatoi A. et al; Recommendations for the Prophylactic Management of Skin Reactions Induced by Epidermal Growth Factor Receptor Inhibitors in Patients With Solid Tumors.
    Oncologist. 2016 Dec;21(12):1483-1491.
  60. Ueno M, Komatsu Y, Boku N. et al;
    A randomized phase II study of S-1 plus oral leucovorin versus S-1 monotherapy in patients with gemcitabine-refractory advanced pancreatic cancer.
    Ann Oncol. 2016 Mar;27(3):502-8.
  61. Hironaka S, Komatsu Y, Hyodo I. et al;
    S-1 plus leucovorin versus S-1 plus leucovorin and oxaliplatin versus S-1 plus cisplatin in patients with advanced gastric cancer: a randomised, multicentre, open-label, phase 2 trial.
    Lancet Oncol. 2016 Jan;17(1):99-108.
  62. Shitara K, Komatsu Y, Ohtsu A.et al;
    Subgroup analyses of the safety and efficacy of ramucirumab in Japanese and Western patients in RAINBOW: a randomized clinical trial in second-line treatment of gastric cancer.
    Gastric Cancer. 2016 Jul;19(3):927-38.
  63. Komatsu Y, Ohki E, Nishida T.et al;
    Safety, efficacy and prognostic analyses of sunitinib in the post-marketing surveillance study of Japanese patients with gastrointestinal stromal tumor.
    Jpn J Clin Oncol. 2015 Nov;45(11):1016-22.
  64. Komatsu Y, Yuki S, Kurihara M.et al;
    Study protocol of the TRICOLORE trial: a randomized phase III study of oxaliplatin-based chemotherapy versus combination chemotherapy with S-1, irinotecan, and bevacizumab as first-line therapy for metastatic colorectal cancer.
    BMC Cancer. 2015 Sep 9;15:626.
  65. Mayer RJ, Komatsu Y, Ohtsu A et al;
    Randomized trial of TAS-102 for refractory metastatic colorectal cancer.
    N Engl J Med. 2015 May 14;372(20):1909-19.
  66. Nakamura M, Komatsu Y, Sugihara K.et al;
    The SOFT trial: a Phase III study of the dihydropyrimidine dehydrogenase inhibitory fluoropyrimidine S-1 and oxaliplatin (SOX) plus bevacizumab as first-line chemotherapy for metastatic colorectal cancer.
    Future Oncol. 2015;11(10):1471-8.
  67. Komatsu Y, Okita K, Takahashi Y.et al;
    Open-label, randomized, comparative, phase III study on effects of reducing steroid use in combination with Palonosetron.
    Cancer Sci. 2015 Jul;106(7):891-5
  68. Kobayashi Y, Komatsu Y, Yuki S, Sakamoto N. et al.
    Randomized controlled trial on the skin toxicity of panitumumab in Japanese patients with metastatic colorectal cancer: HGCSG1001 study; J-STEPP.
    Future Oncol. 2015 Feb; 11(4):617-27.
  69. Komatsu Y, Demetri GD, Nishida T.ET AL;
    Regorafenib for advanced gastrointestinal stromal tumors following imatinib and sunitinib treatment: a subgroup analysis evaluating Japanese patients in the phase III GRID trial.
    Int J Clin Oncol. 2015 Feb 6.
  70. Wilke H, Muro K, Komatsu Y, et al.
    RAINBOW Study Group.Ramucirumab plus paclitaxel versus placebo plus paclitaxel in patients with previously treated advanced gastric or gastro-oesophageal junction adenocarcinoma (RAINBOW): a double-blind, randomised phase 3 trial.
    Lancet Oncol. 2014 Oct; 15(11):1224-35
  71. Yoshino T, Komatsu Y, Ohtsu A, et al.
    Randomized phase III trial of regorafenib in metastatic colorectal cancer: analysis of the CORRECT Japanese and non-Japanese subpopulations.
    Invest New Drugs. 2014 Sep 12.
  72. Satoh T, Komatsu Y, Sakata Y. et al.
    Randomized phase II trial of nimotuzumab plus irinotecan versus irinotecan alone as second-line therapy for patients with advanced gastric cancer.
    Gastric Cancer. 2014 Sep 5.
  73. Yasui H, Komatsu Y, Sugihara K. et al.
    A phase 3 non-inferiority study of 5-FU/l-leucovorin/irinotecan (FOLFIRI) versus irinotecan/S-1 (IRIS) as second-line chemotherapy for metastatic colorectal cancer: updated results of the FIRIS study.
    J Cancer Res Clin Oncol. 2014 Aug 9.
  74. Kurokawa Y, Komatsu Y, Furukawa H et al.
    Phase II study of trastuzumab in combination with S-1 plus cisplatin in HER2-positive gastric cancer (HERBIS1).
    Br J Cancer. 2014 Jan 28.
  75. Komatsu Y, Yoshino T, Ohtsu A, et al.
    Phase 1 study of efatutazone, a novel oral peroxisome proliferator-activated receptor gamma agonist, in combination with FOLFIRI as second-line therapy in patients with metastatic colorectal cancer.
    Invest New Drugs. 2013 Dec 15.
  76. Yamada Y, Komatsu Y, Sugihara K, et al.
    Leucovorin, fluorouracil, and oxaliplatin plus bevacizumab versus S-1 and oxaliplatin plus bevacizumab in patients with metastatic colorectal cancer (SOFT): an open-label, noninferiority, randomised phase 3 trial.
    Lancet Oncol. 2013 Dec; 14(13):1278-86
  77. Nakatsumi H, Komatsu Y, Asaka M, et al.
    Optimal Dose Period for Indisetron Tablets for Preventing Chemotherapy-Induced Nausea and Vomiting with Modified FOLFOX6: A Randomized Pilot Study.
    Chemotherapy. 2013 Jan 29; 58(6):439-444.
  78. Yoshino T, Komatsu Y, Ohtsu A, et al.
    TAS-102 monotherapy for pretreated metastatic colorectal cancer: a double-blind, randomised, placebo-controlled phase 2 trial.
    Lancet Oncol. 2012 Oct; 13(10):993-1001.
  79. Komatsu Y, Yuki S, Sakata Y, et al.
    Phase II study of combined chemotherapy with irinotecan and S-1(IRIS) plus bevacizumab in patientswith inoperable recurrent or advanced colorectal cancer.
    Acta Oncol. 2012 May 4.
  80. Komatsu Y, Sakata Y, Asaka M, et al.
    Phase II Study of Combined Treatment with Irinotecan and S-1(IRIS) in Patients with Inoperable or Recurrent Advanced Colorectal Cancer (HGCSG0302).
    Oncology. 2011 Jun 9; 80(1-2):70-75.
  81. Komatsu Y, Takahashi Y, Saji S, et al.
    Randomized phase II trial of first-line treatment with tailored irinotecan and S-1 therapy versus S-1 monotherapy for advanced or recurrent gastric carcinoma (JFMC31-0301).
    Anticancer Drugs. 2011 Jul;22(6):576-583
  82. Sawaki A, Komatsu Y, Ohtsu A, et al.
    Phase 2 study of nilotinib as third-line therapy for patients with gastrointestinal stromal tumor.
    Cancer. 2011 Mar 31.
  83. Doi T, Komatsu Y, et al.
    Multicenter Phase II Study of Everolimus in Patients With Previously Treated Metastatic Gastric Cancer.
    J Clin Oncol. 28:1904-1910, 2010
  84. Komatsu Y, Yuki S, et al.
    Phase 1/2 Clinical Study of Irinotecan and Oral S-1 (IRIS) in Patients with Advanced Gastric Cancer.
    Adv Ther. 2010 Jul; 27(7):483-92.
  85. Muro K, Komatsu Y, Sugihara K, et al.
    Irinotecan plus S-1 (IRIS) versus fluorouracil and folinic acid plus irinotecan (FOLFIRI) as second-line chemotherapy for metastatic colorectal cancer: a randomised phase 2/3 non-inferiority study (FIRIS study).
    Lancet Oncol. 2010 Sep; 11(9):853-60.