Unique ID issued by UMIN | UMIN000034857 |
---|---|
Receipt number | R000039745 |
Scientific Title | Evaluation of semi-standard treatment for lower and early-staged rectal cancer (high-risk pT1, low-risk pT2) in the late elderly patients: a multicenter prospective observational study. |
Date of disclosure of the study information | 2018/11/20 |
Last modified on | 2019/05/22 16:06:19 |
Evaluation of semi-standard treatment for lower and early-staged rectal cancer (high-risk pT1, low-risk pT2) in the late elderly patients: a multicenter prospective observational study.
Prospective observational study for lower and early-staged rectal cancer in the late elderly patients
Evaluation of semi-standard treatment for lower and early-staged rectal cancer (high-risk pT1, low-risk pT2) in the late elderly patients: a multicenter prospective observational study.
Prospective observational study for lower and early-staged rectal cancer in the late elderly patients
Japan |
Lower rectal cancer
Gastrointestinal surgery |
Malignancy
NO
To evaluate the efficacy and validity of semi-standard therapy without additional radical surgery for lower and early-staged rectal cancer after margin-negative local excision and diagnosed as high-risk pT1 or low-risk pT2 cancer in late elderly patients (aged 75 or older).
Safety,Efficacy
Others
Others
Not applicable
2-year non-deteriorating rate of quality of life (Wexner score, Low anterior resection syndrome (LARS) score, Proportion of anus-preservation without stoma at 2 year)
Deteriorating rate of the degree of living independence for the elderly patients with/without dementia(2-year), scoring of Mini-cog scale(2 year), complication of the treatment (2 year), overall survival (5 year), relapse free survival (5 year), rate of occuring other disieases (5 year)
Observational
75 | years-old | < |
Not applicable |
Male and Female
1) Age at registration is 75 and over.
2) Primary tumor located at lower rectum, and the lower border of the primary tumor located at anal side of middle Houston valve by endoscopic finding before local resection.
3) Within 16 weeks after local resection.
4) Complete resection (en bloc) was performed by local resection and pathologically diagnosed as HM0 and VM0 (= PM0, DM0, RM0)
5) Pathological T1 cancer 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, iv) Budding grade of 2-3
or pathological T2 cancer with fulfilled both of the following condition.
i) well or moderately diiferentiated adenocarcinoma, ii) the greatest tumor diameter was within 3 cm.
6) Neither lymph node metastases nor distant metastases was confirmed by chest, abdomen, and pelvis computed tomography (cN0M0)
7) Witten informed consent is obtained
8) Patients who are 75 years or older who are planned radical surgery without local excision and who meet the above 2) by endoscopic diagnosis before surgery and 5) by the postoperative pathology enables registration to group A.
1) Patients thought to be ineligible for this study by their doctor.
2) Without written informed consent from patient or his/her family.
3) Of patients in group A registered according to eligibility criteria 8), if post-operative pathological findings prove that they do not meet eligibility criteria 5), they are excluded at that point and excluded from the final analysis.
30
1st name | |
Middle name | |
Last name | Masaaki Ito |
National cancer center hospital East
Division of Colorectal Surgery
6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577, Japan
04-7133-1111
maito@east.ncc.go.jp
1st name | |
Middle name | |
Last name | Takeshi Sasaki |
National cancer center Hospital East
division of Colorectal Surgery
6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577, Japan
04-7133-1111
taksasak@east.ncc.go.jp
National cancer center Hospital East
National cancer center
Japanese Governmental office
NO
2018 | Year | 11 | Month | 20 | Day |
Unpublished
Open public recruiting
2018 | Year | 04 | Month | 13 | Day |
2018 | Year | 04 | Month | 13 | Day |
2025 | Year | 04 | Month | 12 | Day |
Totally 30 domestic institutions join this study.
Tohoku university, Jichi medical university, Tochigi cancer center hospital, Saitama medical university International medical center, Matsudo city general hospital, Toho university medical center Sakura hospital, Kitasato university Kitasato Institute hospital, Juntendo university, Hiratsuka city hospital, Yokohama shin-midori general hospital, Kanagawa cancer center hospital, Fujisawa city hospital, Niigata cancer center hospital, Koseiren Takaoka Hospital, Mie university, Yodogawa Christian hospital, Osaka medical university, Hiroshima city Hiroshima citizens hospital, Ehime prefectural central hospital, Sumitomo Besshi hospital, Kochi university, Nagasaki university, Ryukyu university, Urasoe General Hospital, Kyoto university, Kitano hospital, Medlical Topia Soka hospital, Shikoku cancer center hospital, Ishikawa prefectural center hospital
2018 | Year | 11 | Month | 11 | Day |
2019 | Year | 05 | Month | 22 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000039745