UMIN-CTR Clinical Trial

Basic information
Official scientific title of the study	A retrospective study on sick leave at workplace taken by breast cancer patients
Title of the study (Brief title)	A retrospective study on sick leave at workplace taken by breast cancer patients
Region	Japan

Condition
Condition	Breast cancer
Classification by specialty	Breast surgery
Classification by malignancy	Malignancy
Genomic information	NO

Objectives
Narrative objectives1	To examine 1) sick leave at workplace taken by breast cancer patients who underwent operation and treatment, 2) the correlation between 1) and medial factors, and 3) the cooperation between surgeons and occupational physicians on sick leave and return to work.
Basic objectives2	Others
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase

Assessment
Primary outcomes	Sick leave taken by breast cancer patients
Key secondary outcomes

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	65 years-old >
Gender	Female
Key inclusion criteria	Patients 20 years old or more and under 65 (at the time of breast cancer operation)
Key exclusion criteria	Patients considered inappropriate for the study by the investigator
Target sample size	1300

Research contact person
Name of lead principal investigator	Yukako Okude
Organization	Juntendo University Hospital
Division name	Nursing counseling room
Address	3-1-3, Hongo, Bunkyo-ku, Tokyo 113-8421
TEL	03-3813-3111
Email	yokude@juntendo.ac.jp

Public contact
Name of contact person	Ryoko Taguchi(Acting Ms.Yukako Okude)
Organization	Juntendo University of Medicine
Division name	Department of Breast Surgery and Oncology
Address	2-1-1, Hongo, Bunkyo-ku, Tokyo 113-8421
TEL	03-3813-3111
Homepage URL
Email	r-taguchi@juntendo.ac.jp

Sponsor
Institute	Department of Breast Surgery and Oncology, Juntendo University of Medicine
Institute
Department

Funding Source
Organization	Ministry of Health, Labour and Welfare
Organization
Division
Category of Funding Organization	Japanese Governmental office
Nationality of Funding Organization

Other related organizations
Co-sponsor
Name of secondary funｄer(s)

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	順天堂大学医学部附属順天堂医院（東京）

Other administrative information
Date of disclosure of the study information	2016 Year 04 Month 06 Day

Progress
Recruitment status	Completed
Date of protocol fixation	2015 Year 12 Month 25 Day
Anticipated trial start date	2016 Year 01 Month 04 Day
Last follow-up date	2017 Year 03 Month 31 Day
Date of closure to data entry
Date trial data considered complete
Date analysis concluded

Related information
URL releasing protocol
Publication of results	Unpublished
URL releasing results
Results
Other related information	We examine the data of medical certificates issued in the hospital for breast cancer patients.

Management information
Registered date	2016 Year 04 Month 05 Day
Last modified on	2017 Year 03 Month 31 Day

Link to view the page
URL(English)	https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000025119