UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000035437
Receipt number R000040370
Scientific Title A multi-institutional prospective cohort study of employment after colorectal cancer surgery
Date of disclosure of the study information 2019/05/07
Last modified on 2023/03/29 12:53:21

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Basic information

Public title

A multi-institutional prospective cohort study of employment after colorectal cancer surgery

Acronym

A multi-institutional prospective cohort study of employment after colorectal cancer surgery

Scientific Title

A multi-institutional prospective cohort study of employment after colorectal cancer surgery

Scientific Title:Acronym

A multi-institutional prospective cohort study of employment after colorectal cancer surgery

Region

Japan


Condition

Condition

Colorectal cancer

Classification by specialty

Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

Our study aims are 1: to clarify the proportion of working patient and 2: to explore risk factors for returning to work, one year after surgery.

Basic objectives2

Others

Basic objectives -Others

To estimate proportion
To explore risk factors

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Proportion of working patients one year after surgery

Key secondary outcomes

1) Time from surgery to returning to work
2) Proportion of employed patients one year after surgery


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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) cStage I, II, or III colorectal cancer
2) planning curative surgery
3) employed at the time of diagnosis
4) obtained consent by the document

Key exclusion criteria

1) undergoing chemotherapy for other cancers
2) judged inappropriate by the examining doctor

Target sample size

140


Research contact person

Name of lead principal investigator

1st name Kazutaka
Middle name
Last name Obama

Organization

Kyoto University

Division name

Gastrointestinal surgery

Zip code

6068507

Address

54, Kawahara-cho, Sakyo-ku, Kyoto

TEL

075-366-7595

Email

kobama@kuhp.kyoto-u.ac.jp


Public contact

Name of contact person

1st name Yusuke
Middle name
Last name Fujita

Organization

Kyoto University

Division name

Gastrointestinal surgery

Zip code

6068507

Address

54, Kawahara-cho, Sakyo-ku, Kyoto

TEL

075-366-7595

Homepage URL


Email

0424.yusuke@gmail.com


Sponsor or person

Institute

Department of Gastrointestinal Surgery, Graduate School of Medicine, Kyoto University

Institute

Department

Personal name



Funding Source

Organization

The Mitsubishi foundation

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Graduate School and Faculty of Medicine Kyoto University Hospital Ethics Committe

Address

54, Kawahara-cho, Sakyo-ku, Kyoto

Tel

075-753-4680

Email

ethcom@kuhp.kyoto-u.ac.jp


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

2019 Year 05 Month 07 Day


Related information

URL releasing protocol

Unpublished

Publication of results

Unpublished


Result

URL related to results and publications

Unpublished

Number of participants that the trial has enrolled

130

Results

The median time to return to work was 1.1 months, and the proportion of working patients at 12 months after surgery was 79%.

Results date posted

2023 Year 03 Month 29 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

Of the 129 patients, 50 (39%) were over 65 years, 46 (36%) were female, and 62 (48%) had rectal cancer. There were 48 patients (37%) with clinical stage III CRC and 126 (98%) who received minimally invasive surgery. Six patients (5%) received preoperative radiation. However, all of these patients were also included in the group of nine patients (7%) who received preoperative chemotherapy. Stoma was created for 31 patients (24%). Postoperative overall complications were observed in 27 patients (21%). In addition, 50 patients (39%) underwent adjuvant chemotherapy. A total of 45 patients (35%) were regular employees, 43 (33%) were non-regular employees, and 40 (31%) were self-employed. Seventy-two patients (56%) worked in companies with 50 or fewer employees. Finally, most patients (89%) were willing to RTW.

Participant flow

One patient was excluded after enrollment as they were diagnosed with ovarian cancer, not CRC, during surgery. Accordingly, 129 patients were included in the analyses.
The questionnaire was used to follow up on 128 patients (99%) at six months and 125 patients (97%) at 12 months.

Adverse events

None

Outcome measures

The time it takes patients to return to work after surgery and the proportion of working patients 12 months after surgery

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2018 Year 02 Month 15 Day

Date of IRB

2019 Year 04 Month 05 Day

Anticipated trial start date

2019 Year 06 Month 01 Day

Last follow-up date

2021 Year 09 Month 09 Day

Date of closure to data entry

2021 Year 10 Month 21 Day

Date trial data considered complete


Date analysis concluded



Other

Other related information

We estimate the proportion of working patients one year after surgery. We estimate the proportion of employed patients in the same way. We estimate the time from surgery to returning to work with the Kaplan-Meier method.
We explore the influence of clinical factors and socioeconomic factors on returning to work by estimating their risk ratio and odds ratio. In particular, when we explore the effects of adjuvant chemotherapy, we focus on patients with pStageII, III.


Management information

Registered date

2019 Year 01 Month 04 Day

Last modified on

2023 Year 03 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000040370