UMIN-CTR Clinical Trial

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

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Basic information

Public 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.

Acronym

Prospective observational study for lower and early-staged rectal cancer in the late elderly patients

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.

Scientific Title:Acronym

Prospective observational study for lower and early-staged rectal cancer in the late elderly patients

Region

Japan


Condition

Condition

Lower rectal cancer

Classification by specialty

Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

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).

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

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)

Key secondary outcomes

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)


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

75 years-old <

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

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.

Key exclusion criteria

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.

Target sample size

30


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Masaaki Ito

Organization

National cancer center hospital East

Division name

Division of Colorectal Surgery

Zip code


Address

6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577, Japan

TEL

04-7133-1111

Email

maito@east.ncc.go.jp


Public contact

Name of contact person

1st name
Middle name
Last name Takeshi Sasaki

Organization

National cancer center Hospital East

Division name

division of Colorectal Surgery

Zip code


Address

6-5-1 Kashiwanoha, Kashiwa, Chiba 277-8577, Japan

TEL

04-7133-1111

Homepage URL


Email

taksasak@east.ncc.go.jp


Sponsor or person

Institute

National cancer center Hospital East

Institute

Department

Personal name



Funding Source

Organization

National cancer center

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2018 Year 11 Month 20 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Open public recruiting

Date of protocol fixation

2018 Year 04 Month 13 Day

Date of IRB


Anticipated trial start date

2018 Year 04 Month 13 Day

Last follow-up date

2025 Year 04 Month 12 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

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


Management information

Registered date

2018 Year 11 Month 11 Day

Last modified on

2019 Year 05 Month 22 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000039745


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name