UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000036525
Receipt number R000041478
Scientific Title Multicentre prospective observational study protocol for radiation exposure from gastrointestinal fluoroscopic procedures
Date of disclosure of the study information 2019/05/01
Last modified on 2021/03/10 09:26:19

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Basic information

Public title

Multicentre prospective observational study protocol for radiation exposure from gastrointestinal fluoroscopic procedures

Acronym

REX-GI study

Scientific Title

Multicentre prospective observational study protocol for radiation exposure from gastrointestinal fluoroscopic procedures

Scientific Title:Acronym

REX-GI study

Region

Japan


Condition

Condition

The image guided procedures under fluoroscopic guidance
in the field of gastroenterology.

Classification by specialty

Gastroenterology Hepato-biliary-pancreatic medicine Radiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To assess the actual radiation exposure dose of the imageguided procedures in the field of gastroenterology (ERCP, I
nterventional-EUS, enteral SEMS, ileus tube, and balloon-a
ssisted endoscopy)

Basic objectives2

Others

Basic objectives -Others

To evaluate the factors affecting the actual radiation expos
ure dose

Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Phase IV


Assessment

Primary outcomes

Radiation exposure dose (Air Kerma (AK) and Dose Area
product (DAP)) and fluoroscopy time of each procedure.

Key secondary outcomes

To evaluate the actual radiation exposure dose (RD) and th
e following factors.
Exposure field of the fluoroscopy, Frame rate, Frequency o
f Xray, Factors of each image-guided procedures (ERCP, Interventional EUS, enteral SEMS, ileus tube), Type of disease, treatment and scope, Procedure time, Anesthesia


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


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

All patients who need image guided procedures under fluoroscopic guidance in the field of gastroenterology under usual clinical care.

Key exclusion criteria

All patients reject to participate in this study via the opt-out method.

Target sample size

5000


Research contact person

Name of lead principal investigator

1st name Tsutomu
Middle name
Last name Nishida

Organization

Toyonaka Municipal Hospital

Division name

Gastroenterology

Zip code

560-8565

Address

4-14-1 Shibahara, Toyonaka, Osaka

TEL

06-6843-0101

Email

tnishida.gastro@gmail.com


Public contact

Name of contact person

1st name Tsutomu
Middle name
Last name Nishida

Organization

Toyonaka Municipal Hospital

Division name

Gastroenterology

Zip code

560-8565

Address

4-14-1 Shibahara, Toyonaka, Osaka

TEL

06-6843-0101

Homepage URL

https://www.chp.toyonaka.osaka.jp/aboutus/kenkyuu/index.html

Email

tnishida.gastro@gmail.com


Sponsor or person

Institute

Department of Gastroenterology,
Toyonaka Municipal Hospital

Institute

Department

Personal name



Funding Source

Organization

The Japanese Society of Gastroenterology

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Toyonaka Municipal Hospital

Address

4-14-1 Shibahara, Toyonaka, Osaka

Tel

06-6843-0101

Email

tnishida.gastro@gmail.com


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

市立豊中病院(大阪府), 近畿大学付属病院(大阪府) 東京大学医学部付属病院(東京都)、福井県立病院(福井県)、関西労災病院(兵庫県)、大阪市立大学医学部附属病院(大阪府)、石川県立中央病院(石川県)、斗南病院(北海道)、がん研有明病院(東京都)、市立吹田市民病院(大阪府)、大阪労災病院 (大阪府)、 大阪急性期・総合医療センター (大阪府) 、福島県立医科大学附属病院(福島県)、兵庫県立がんセンター(兵庫県)、北野病院(大阪府)、多根総合病院(大阪府)、日本赤十字社医療センター(東京都)、国立病院機構呉医療センター (広島県)、名古屋市立大学大学院(愛知県)、東邦大学医療センター大橋病院(東京都)、大阪国際がんセンター(大阪府)、岐阜大学医学部附属病院(岐阜県)、東邦大学医療センター大橋病院(東京)、大阪国際がんセンター(大阪)、岐阜大学医学部附属病院(岐阜)、順天堂大学医学部付属医院順天堂医院(東京)


Other administrative information

Date of disclosure of the study information

2019 Year 05 Month 01 Day


Related information

URL releasing protocol

https://bmjopen.bmj.com/content/10/2/e033604

Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

12416

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

Completed

Date of protocol fixation

2019 Year 03 Month 26 Day

Date of IRB

2019 Year 04 Month 25 Day

Anticipated trial start date

2019 Year 05 Month 01 Day

Last follow-up date

2020 Year 12 Month 31 Day

Date of closure to data entry

2021 Year 01 Month 31 Day

Date trial data considered complete

2021 Year 03 Month 31 Day

Date analysis concluded



Other

Other related information

Study design: Multi-center prospective observational study.
We examined the procedure time (min), total fluoroscopy time (min), radiation dose (mGy), radiation dose rate (RDR, mGy/min), and dose area product: DAP (mGycm2) during the following procedures.

1) ERCP
2) Interventional EUS
3) Balloon Enteroscopy
4) Enteral Metallic Stent
5) Enteral Long Tube


Management information

Registered date

2019 Year 04 Month 16 Day

Last modified on

2021 Year 03 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000041478


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name