NIPH Clinical Trials Search

JRCT ID: jRCT1031180076

Registered date:10/01/2019

JCOG1612: Single-arm confirmatory trial of the adjuvant chemoradiation for the patients with the high-risk rectal submucosal invasive cancer after the local resection

Basic Information

Recruitment status Not Recruiting
Health condition(s) or Problem(s) studiedLower rectal cancer
Date of first enrollment12/02/2019
Target sample size210
Countries of recruitment
Study typeInterventional
Intervention(s)Adjuvant chemoradiatherapy consist of Capecitabine (day1-5, 8-12, 15-19, 22-26, and 29-33, 1,800-3,000 mg/day) and radiotherapy (45 Gy/25 Fr) for primary site after local resection


Primary Outcome5 year relapse-free survival
Secondary Outcome10 year relapse-free survival, 5 year overall survival, 10 year overall survival, 5 year local relapse-free survival, 10 year local relapse-free survival, Proportion of anus-preservation without stoma at 5 year, Proportion of anus-preservation without stoma at 10 year, Wexner score, LARS score, Adverse events, Sever adverse events

Key inclusion & exclusion criteria

Age minimum>= 20age old
Age maximum<= 75age old
Include criteria1) Primary tumor located at lower rectum by endoscopic finding before local resection. Local resection include endoscopic mucosal resection (EMR),endoscopic submucosal dissection (ESD),transanal local resecton, transanal endoscopic microsurgery (TEM), and minimal invasive transanal surgery (MITAS). 2)Within 12 weeks after local resection. 3)Complete resection (en bloc) was performed by local resection with either i)or ii) in pathological diagnosis. i)HM0 and VM0 , or HMX and VM0 after endoscopic resection (EMR or ESD). ii)(PM0, DM0, and RM0), (PMX, DM0, and RM0), (PM0, DMX, and RM0), or (PMX, DMX, and RM0) after operative local resection (transanal local resecton, TEM, or MITAS). 4)Pathological T1 and adenocarcinoma defined by 8th edition of Japanese Classification of Colorectal Carcinoma with fulfilled either of the following condition. i)Poorly differentiated adenocarcinoma (por), or mucinous adenocarcinoma (muc), or signet-ring cell carciona (sig). ii)Pathological T1b iii)Lymphatic invasion positive or venous invasion positive (confirmed using immunostaining) iv)Budding grade of 2-3 5)Confirmed as no exposure of ulcer bed (covering with regenerative epithelium) and no residual tumor by endoscopy in the primary site after locally resected. 6)Neither lymph node metastases nor distant metastases was confirmed by chest, abdomen, and pelvis computed tomography (cN0M0) 7)Age at registration is of 20 to 75 years old. 8)ECOG Performance status is 0 or 1. 9)Sufficient oral intake. 10)No prior rectal resection (excluding local resection) or pelvic irradiation for any malignancies 11)Neither hereditary bowel disease (Familial adenomatous polyposis or Lynch syndrome) nor inflammatory bowel disease (Ulcerative colitis or Crohn's disease). 12)Sufficient organ function. i)White blood cell count >= 3,000 /mm3 ii)Hemoglobin >= 9.0 mg/dl iii)Platelet count >= 100,000 /mm3 iv)T.Bil =< 2.0 mg/dL v)AST =< 100 U/L vi)ALT =< 100 U/L vii)Cr =< 1.5 mg/dL 13)The surgeons explained that total mesorectal excision with D2 lymph dissection is standard therapy. 14)Witten informed consent is obtained.
Exclude criteria1)Synchronous or metachronous (within 5 years) malignancies except cancer with 5-year relative survival rate of 95% or more such as carcinoma in situ, intramucosal tumor, or early stage cancers. 2)Infections which needs systemic treatment. 3)Body temperature is higher than 38 degrees centigrade at registration. 4)Female during pregnancy, within 28 days of postparturition, or during lactation. 5)Severe psychological disease. 6)Requirement for continuous systemic corticosteroid or immunosuppressant treatment. 7)Uncontrollable diabetes mellitus. 8)Unstable angina pectoris (angina developed or attack worsened within the previous 3 weeks), or myocardial infarction within the previous 6 months. 9)Severe interstitial pneumonia, pulmonary fibrosis, or severe emphysema. 10)Requirement for phenytoin or warfarin potassium.

Related Information


Public contact
Name Eriko SATOMI
Address 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045 Japan Tokyo Japan 104-0045
Telephone +81-3-3547-5293
Affiliation National Cancer Center Hospital
Scientific contact
Name Yutaka SAITO
Address 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045 JAPAN Tokyo Japan 104-0045
Telephone +81-3-3542-2511
Affiliation National Cancer Center Hospital