【国内学会】第78回日本消化器外科学会総会で賀川義規医師が発表しました
2023.07.14
演題名は、「 局所進行直腸癌に対するTNTの有効性・安全性を検討する多施設共同臨床第Ⅱ相試験 – ENSEMBLE-1 –」
第78回日本消化器外科学会総会で賀川義規医師が発表しました。
局所進行直腸癌に対するTNTの有効性・安全性を検討する多施設共同臨床第Ⅱ相試験 – ENSEMBLE-1 –
[演者] 賀川 義規:1
[共同演者] 渡邉 純:2,4, 安藤 幸滋:3,4, 植村 守:5, 井上 彬:1, 波多 豪:5, 諏訪 雄亮:2, 大庭 幸治:6, 竹政 伊知朗:7, 沖 英次:4
1:大阪急性期・総合医療センター 消化器外科, 2:横浜市立大学附属市民総合医療センター 消化器病センター, 3:国立がん研究センター東病院 大腸外科, 4:九州大学大学院 消化器・総合外科学, 5:大阪大学大学院 消化器外科学Ⅱ, 6:東京大学大学院 公共健康医学専攻 生物統計学分野, 7:札幌医科大学医学部 消化器・総合、乳腺・内分泌外科学講座

第78回日本消化器外科学会総会

開催概要
| 会期 | 2023年7月12日(水曜日)~14日(金曜日) |
|---|---|
| 会場 | 函館市民会館,函館アリーナ,花びしホテル(函館市) |
| 会長 | 袴田 健一(はかまだ けんいち) (弘前大学大学院医学研究科消化器外科学講座) |
DateJuly 12 (Wednesday) – 14 (Friday), 2023Venue
Hakodate Citizen Hall, Hakodate Arena, Hanabishi Hotel
Congress PresidentKenichi Hakamada, M.D., Ph.D.
Department of Gastroenterological Surgery,
Hirosaki University Graduate School of Medicine



![Short-term outcomes of a prospective multicenter phase II trial of total neoadjuvant therapy for locally advanced rectal cancer in Japan (ENSEMBLE-1) Yoshinori Kagawa, Jun Watanabe, Mamoru Uemura, Koji Ando, Akira Inoue, Koji Oba, Ichiro Takemasa, Eiji Oki First published: 11 July 2023 https://doi.org/10.1002/ags3.12715 Yoshinori Kagawa and Jun Watanabe contributed equally to this work as first authors. This study was registered in the Japan Registry of Clinical Trials (jRCT s051200113). Meeting presentation: The 99th Meeting of Japanese Society for Cancer of the Colon and Rectum and the 78th General Meeting of the Japanese Society of Gastroenterological Surgery. SECTIONSPDFPDFTOOLS SHARE Abstract Aim To evaluate the feasibility and safety of total neoadjuvant therapy (TNT) in patients with locally advanced rectal cancer (LARC) in Japan. Methods This prospective, multicenter, open-label, single-arm phase II trial was conducted at five institutions. The key eligibility criteria were age ≥ 20 years, LARC within 12 cm from the anal verge, and cT3-4N0M0 or TanyN+M0 at the time of diagnosis that enabled curative resection. Preoperative short-course radiation therapy (SCRT) 5 Gy × 5 days (total 25 Gy) + CAPOX (six courses) followed by total mesorectum excision (TME) was the treatment protocol. Non-operative management (NOM) was allowed if clinical complete response (cCR) was obtained in the preoperative evaluation. The primary endpoint was the pathological complete response (pCR) rate. Results Thirty patients (male, n = 26; female, n = 4; median age, 62.5 [44–74] years; cT [T2, n = 1; T3, n = 25; T4, n = 4]; cN [N0, n = 13; N1, n = 13; N2, n = 4]) were enrolled. The final analysis included 30 patients in total. The completion rates were 100% for SCRT and 83% for CAPOX. TME and NOM were performed in 20 and seven patients, respectively. pCR was observed in six patients (30% [95% CI 14.0%–50.8%]). The primary endpoint was met. pCR+cCR was observed in 13 (43.3%) patients. There were no treatment-related deaths. Grade ≥3 (CTCAE ver. 5.0) adverse events (≥20%), including diarrhea (23.3%) and neutropenia (23.3%). The median follow-up period was 15.6 (10.5–22.8) months, with no recurrence or regrowth in NOM. Conclusions ENSEMBLE-1 demonstrated satisfactory pCR and cCR, and well-tolerated safety of TNT for patients with LARC in Japan.](https://osaka-gs.jp/wp/wp-content/uploads/2023/07/1.png)
