UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000037253
Receipt number R000041087
Scientific Title Database research Utilizing National Claims Data in Japan:Retrospective Cohort Study of Mechanical Thrombectomy for Acute Ischemic Stroke
Date of disclosure of the study information 2019/07/03
Last modified on 2021/07/08 20:32:15

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Basic information

Public title

Database research Utilizing National Claims Data in Japan:Retrospective Cohort Study of Mechanical Thrombectomy for Acute Ischemic Stroke

Acronym

Outcome of Mechanical Thrombectomy for Acute IschemicStroke by Japanese National Claims Database

Scientific Title

Database research Utilizing National Claims Data in Japan:Retrospective Cohort Study of Mechanical Thrombectomy for Acute Ischemic Stroke

Scientific Title:Acronym

Outcome of Mechanical Thrombectomy for Acute IschemicStroke by Japanese National Claims Database

Region

Japan


Condition

Condition

Acute ischemic stroke

Classification by specialty

Neurology Neurosurgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The purpose of the study is two fold. The first is to evaluate the mid-term outcome of mechanical thrombectomy in Japanese real world. The second is to assess cost-effectiveness of the treatment in Japanese insurance system

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

1. Hospitalized term (days) between index stroke and 2 years after it
2. Medical cost between index stroke and 2 years after it

Key secondary outcomes

1. All cause mortality
2. Recurrence of stroke
3. Duration of index hospitalization and destination after discharge
4. Rehabiliation


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

75 years-old >

Gender

Male and Female

Key inclusion criteria

ICD-10, I630-639 or I650-653 or I660-I669
AND
Brain CT or MRI examination on the admission day or the day after that
AND
Japanese procedure code of rt-PA infusion
AND
use of alteplase

Key exclusion criteria

1) Patients who had other procedures which was not related with the index stroke
2) Patient who had the management of acute dissection or aortic aneurysm during study period
3) Patient who had AMI during the study period
4) Patients who had management of active malignancy during the study period
5) Patients who had radiation therapy for active malignant neoplasm during the study period
6) Patient who had mechanical circulatory support during the study period
7) Patients who had maintenance dialysis
8) Patients who had organ transplantation
9) Patient who had trauma

Target sample size

2000


Research contact person

Name of lead principal investigator

1st name Tomoyuki
Middle name
Last name Takura

Organization

The University of Tokyo, Faculty of Medicine

Division name

Medical Economics

Zip code

113-8655

Address

7-3-1, Hongo, Bunkyo-ku, 113-8655, Tokyo, Japan

TEL

+817069363485

Email

value-s@umin.ac.jp


Public contact

Name of contact person

1st name Tomoyuki
Middle name
Last name Takura

Organization

The University of Tokyo, Faculty of Medicine

Division name

Medical Economics

Zip code

113-8655

Address

7-3-1, Hongo, Bunkyo-ku, 113-8655, Tokyo, Japan

TEL

+817069363485

Homepage URL


Email

value-s@umin.ac.jp


Sponsor or person

Institute

The University of Tokyo, Faculty of Medicine

Institute

Department

Personal name



Funding Source

Organization

The University of Tokyo, Faculty of Medicine

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor

Pharmaceuticals and medical Devices Agency of Japan

Name of secondary funder(s)

Pharmaceuticals and medical Devices Agency of Japan


IRB Contact (For public release)

Organization

The University of Tokyo, Faculty of Medicine, Institutional Review Board

Address

7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan

Tel

03-5841-0818

Email

ethics@m.u-tokyo.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 07 Month 03 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

Delay expected

Results Delay Reason

The analyses has not been finalized

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

Preinitiation

Date of protocol fixation

2019 Year 04 Month 01 Day

Date of IRB


Anticipated trial start date

2019 Year 04 Month 01 Day

Last follow-up date

2020 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

No other related information


Management information

Registered date

2019 Year 07 Month 03 Day

Last modified on

2021 Year 07 Month 08 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000041087


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name