UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000043269
Receipt number R000048239
Scientific Title Exploratory research on pharmacological predictors for postoperative bleeding after endoscopic sphincterotomy in patients taking direct-acting oral anticoagulants
Date of disclosure of the study information 2021/02/08
Last modified on 2021/02/07 02:41:17

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Basic information

Public title

Exploratory research on pharmacological predictors for postoperative bleeding after endoscopic sphincterotomy in patients taking direct-acting oral anticoagulants

Acronym

Exploratory research on pharmacological predictors for postoperative bleeding after EST in patients taking DOAC

Scientific Title

Exploratory research on pharmacological predictors for postoperative bleeding after endoscopic sphincterotomy in patients taking direct-acting oral anticoagulants

Scientific Title:Acronym

Exploratory research on pharmacological predictors for postoperative bleeding after EST in patients taking DOAC

Region

Japan


Condition

Condition

Biliary disease

Classification by specialty

Hepato-biliary-pancreatic medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The incidence of postoperative gastrointestinal bleeding when EST is performed on patients taking DOAC in accordance with Gastrointestinal Endoscopy Practice Guidelines supplement for patients taking antithrombotic drugs is expected to be approximately 8-10%. There are as yet no indicators established for monitoring the efficacy of DOAC, so uniform support is provided for all respective patients, but individualized treatment is provided for patients in the high-risk group when predictive markers that may cause gastrointestinal bleeding are identified, which can contribute to prevention of gastrointestinal bleeding. The aim of this study was to clarify predictive markers that may enable extraction of high-risk groups at risk of postoperative gastrointestinal bleeding, among patients taking DOAC who have undergone an EST in accordance with the Gastrointestinal Endoscopy Practice Guidelines (supplement 2017) for patients taking antithrombotic drugs.

Basic objectives2

PK,PD

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase



Assessment

Primary outcomes

The effect of DOAC trough drug blood concentration (p-Xa activity) on postoperative gastrointestinal bleeding after EST for common bile duct stone or cancer in patients taking DOAC

Key secondary outcomes

(1) The effect of polymorphism of drug-metabolizing enzymes on postoperative bleeding after EST in patients taking DOAC.
(2) The effect of blood coagulation markers on postoperative bleeding after EST in patients taking DOAC.
(3) Extraction of characteristics of endoscopic treatment-related factors for postoperative bleeding after EST in patients taking DOAC.
(4) Differences between DOAC types for postoperative bleeding after EST in patients taking DOAC.
(5) Correlation of CHADs score on postoperative bleeding after EST in patients taking DOAC.


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. Those who are 20 years old or older on the registration date (consent acquisition date)
2. Those who are taking DOAC who will undergo endoscopic sphincteropapillotomy for common bile duct stones and cancer in accordance with guidelines.
3. Those who have given their consent to participate in this research by signing the consent form.

Key exclusion criteria

1. Patients who have not consented to participate in this study.
2. Patients taking 3 or more antithrombotic drugs.
3. Patients with serious complications (heart failure, kidney failure, liver failure, respiratory failure).
4. Patients who are pregnant or breastfeeding.
5. Other patients determined to be unsuitable as clinical study subjects by the principal (sub) investigator.

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Mitsushige
Middle name
Last name Sugimoto

Organization

Tokyo Medical University

Division name

Department of Gastroenterological Endoscopy

Zip code

1600023

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

TEL

0333426111

Email

sugimo@tokyo-med.ac.jp


Public contact

Name of contact person

1st name Toshihiro
Middle name
Last name Homma

Organization

Tokyo Medical University

Division name

Department of Gastroenterology and Hepatology

Zip code

1600023

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

TEL

0333426111

Homepage URL


Email

t-homma@tokyo-med.ac.jp


Sponsor or person

Institute

Tokyo Mediclal University

Institute

Department

Personal name



Funding Source

Organization

no organization.

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

Tel

0333426111

Email

t-homma@tokyo-med.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

2021 Year 02 Month 08 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

2020 Year 07 Month 21 Day

Date of IRB

2020 Year 12 Month 25 Day

Anticipated trial start date

2021 Year 01 Month 04 Day

Last follow-up date

2023 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

None


Management information

Registered date

2021 Year 02 Month 07 Day

Last modified on

2021 Year 02 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048239


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name