UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000009629
Receipt number R000011299
Scientific Title Effects of antiplatelet drugs for coronary endothelial functions after drug-eluting stent placement
Date of disclosure of the study information 2013/03/01
Last modified on 2012/12/25 21:48:20

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Basic information

Public title

Effects of antiplatelet drugs for coronary endothelial functions after drug-eluting stent placement

Acronym

Effects of antiplatelet drugs for coronary endothelial functions after drug-eluting stent placement

Scientific Title

Effects of antiplatelet drugs for coronary endothelial functions after drug-eluting stent placement

Scientific Title:Acronym

Effects of antiplatelet drugs for coronary endothelial functions after drug-eluting stent placement

Region

Japan


Condition

Condition

Patients, complicated with peripheral arterial occlusive disease, without in-stent stenosis eight months after drug-eluting stent implantation in the left anterior descending coronary

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Comparison of effects on intimal reformation in the drug-eluting stent and endothelial function after stenting between clopidogrel and cilostazol.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Phase IV


Assessment

Primary outcomes

1. At the start of the study and eight months later, evaluation of either presence or absence of in-stent stenosis in left anterior descending coronary, judging whether new stenotic lesion exists in the left anterior descending coronary by angiography, and determination of stenosis rate by QCA
2. At the start of the study and eight months later, evaluation of vascular reactivity within 20 mm from distal end of in-stent in left anterior descending coronary by load test using acetylcholine and determination of average vessel diameter by QCA
3. At the start of the study and eight months later, evaluation of degree of in-stent intimal thickening (neo-intimal volume %) in left anterior descending coronary by OCT

Key secondary outcomes

1. At the start of the study and eight months later, judging whether new stenotic lesion exists in left circumflex coronary by angiography and determination of stenosis rate by QCA
2. At the start of the study and eight months later, evaluation of vascular reactivity within 20 mm from bifurcation of left circumflex coronary artery, or within 20 mm from distal end of in-stent in left anterior descending coronary in case of stent implanted in the range of evaluation, by load test using acetylcholine, and determination of average vessel diameter by QCA


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment

Pseudo-randomization


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Group A: administration of cilostazol (200 mg per day) and aspirin (100mg per day) for eight months

Interventions/Control_2

Group B: administration of clopidogrel (75 mg per day) and aspirin (100mg per day) for eight months

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

90 years-old >

Gender

Male and Female

Key inclusion criteria

Subjects who meet all of the following criteria:
1. Stable angina patients with chronic arterial occlusive disease between the ages of 20 and 80 years old
2. Asymptomatic patients who underwent drug-eluting stent implantation in left anterior descending coronary and had in-stent stenosis rate of less than 50% in contrast study after eight months
3. Patients with heart rate is less than 80 beats per minute
4. Patients follow-up can be more than eight months
5. Patients who receive an explanation of the study, the consent of the study participants was obtained in writing from the person or agent

Key exclusion criteria

Subjects who fall under any of the following criteria will be excluded from this study
1. Patients with bleeding or bleeding tendency
2. Patients treated with antiplatelet drugs is not appropriate
3. Patients with a history of hypersensitivity or side effects caused by the study drugs
4. Patients with malapposition on OCT image
5. Patients without visible coating on stent surface on OCT image
6. Patients otherwise judged by the investigator to be inappropriate for inclusion in the study

Target sample size

20


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Masataka Sata

Organization

The Institute of Health Biosciences, The University of Tokushima Graduate School

Division name

Cardiovascular Medicine

Zip code


Address

3-18-15 Kuramoto-cho, Tokushima, Japan

TEL

088-633-7851

Email



Public contact

Name of contact person

1st name
Middle name
Last name Tetsuzo Wakatsuki

Organization

Tokushima University Hospital

Division name

Cardiovascular Medicine

Zip code


Address

2-50-1 Kuramoto-cho, Tokushima, Japan

TEL

088-633-7851

Homepage URL


Email

wakatuki@clin.med.tokushima-u.ac.jp


Sponsor or person

Institute

The Institute of Health Biosciences, The University of Tokushima Graduate School

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

None


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



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

徳島大学病院(徳島県) Tokushima University Hospital (Tokushima)


Other administrative information

Date of disclosure of the study information

2013 Year 03 Month 01 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

Preinitiation

Date of protocol fixation

2012 Year 11 Month 15 Day

Date of IRB


Anticipated trial start date

2013 Year 02 Month 01 Day

Last follow-up date

2015 Year 03 Month 31 Day

Date of closure to data entry

2015 Year 05 Month 31 Day

Date trial data considered complete

2015 Year 07 Month 31 Day

Date analysis concluded

2015 Year 09 Month 30 Day


Other

Other related information



Management information

Registered date

2012 Year 12 Month 25 Day

Last modified on

2012 Year 12 Month 25 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000011299


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name