UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000019948
Receipt number R000022290
Scientific Title ShorT and OPtimal duration of Dual AntiPlatelet Therapy-2 study
Date of disclosure of the study information 2015/11/27
Last modified on 2021/11/10 10:07:55

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Basic information

Public title

ShorT and OPtimal duration of Dual AntiPlatelet Therapy-2 study

Acronym

ShorT and OPtimal duration of Dual AntiPlatelet Therapy-2 study(STOPDAPT-2)

Scientific Title

ShorT and OPtimal duration of Dual AntiPlatelet Therapy-2 study

Scientific Title:Acronym

ShorT and OPtimal duration of Dual AntiPlatelet Therapy-2 study(STOPDAPT-2)

Region

Japan


Condition

Condition

Coronary Heart Disease, Angina Pectoris, Myocardial Infarction

Classification by specialty

Cardiology

Classification by malignancy

Others

Genomic information

YES


Objectives

Narrative objectives1

The purpose of this study is to evaluate the safety of reducing DAPT duration to 1 month after implantation of the everolimus-eluting cobalt-chromium stent (CoCr-EES).

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Phase IV


Assessment

Primary outcomes

The composite of cardiovascular death, myocardial infarction (MI), stroke (ischemic and hemorrhagic), stent thrombosis (Definite stent thrombosis yet to develop into MI), and severe bleeding (TIMI Major/Minor) at 12 months after index PCI.

Key secondary outcomes

Cardiovascular death, MI, Stroke, ARC definite ST, Major bleeding (TIMI Major/ Minor) at 12 months after index PCI.
Cardiovascular death, MI, Stroke, ARC definite ST, Major bleeding (TIMI Major/ Minor), Upper gastrointestinal endoscopy / upper gastrointestinal endoscopic treatment
at 60 months after index PCI.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking

NO

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

After PCI with Xience, dual antiplatelet therapy (DAPT) will be performed for one month. Following that, clopidogrel monotherapy will be continued up to 5 years after index PCI (1-month DAPT group)

Interventions/Control_2

After PCI with Xience, dual antiplatelet therapy (DAPT) will be performed for twelve months. Following that, aspirin monotherapy will be continued up to 5 years after index PCI (12-month DAPT group)

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

1. Patients who have undergone PCI with the everolimus-eluting cobalt-chromium stent (EES, XienceTM)
2. Patients who have not experienced major complications (death, MI, stroke, or major bleeding) during hospital stay for treatment
3. Patients who are capable of oral dual antiplatelet therapy consisting of aspirin and a P2Y12 receptor antagonist

Key exclusion criteria

1. Patients requiring oral anticoagulants
2. Patients with medical history of intracranial hemorrhage
3. Patients who have experienced serious complications (MI, stroke, and major bleeding) during hospital stay post-PCI
4. Patients with DES other than Xience implanted in PCI performed at the time of enrollment
5. Patients confirmed to have no tolerability to clopidogrel before enrollment
6. Patients requiring continuous administration of antiplatelet drugs (PDE3 inhibitors, prostaglandin preparations, etc.) other than aspirin and P2Y12 receptor inhibitors (prasugrel, clopidogrel, and ticlopidine) at the time of enrollment
7. Patients with coronary bioabsorbable vascular scaffold (BVS) implanted prior to or at the time of enrollment

Target sample size

3000


Research contact person

Name of lead principal investigator

1st name Takeshi
Middle name
Last name Kimura

Organization

Kyoto University, Graduate School of Medicine

Division name

Department of Cardiovascular Medicine

Zip code

606-8507

Address

54, Shogoin-Kawara Cho, Sakyo-ku, KYOTO

TEL

075-751-4254

Email

taketaka@kuhp.kyoto-u.ac.jp


Public contact

Name of contact person

1st name Hirotoshi
Middle name
Last name Watanabe

Organization

Kyoto University, Graduate School of Medicine

Division name

Department of Cardiovascular Medicine

Zip code

606-8507

Address

54, Shogoin-Kawara cho, Sakyo-ku, KYOTO

TEL

075-751-4255

Homepage URL


Email

hwatanab@kuhp.kyoto-u.ac.jp


Sponsor or person

Institute

Kyoto University, Graduate School of Medicine, Department of Cardiovascular Medicine

Institute

Department

Personal name



Funding Source

Organization

Abbott Vascular Japan Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Research Institute for Production Development

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kyoto University Certified Review Board

Address

Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, JAPAN

Tel

075-753-4680

Email

ethcom@kuhp.kyoto-u.ac.jp


Secondary IDs

Secondary IDs

YES

Study ID_1

NCT02619760

Org. issuing International ID_1

the U.S. National Institutes of Health

Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

2021年11月現在下記施設、()内は責任医師<北海道>手稲渓仁会病院(廣上貢),北光記念病院(野崎洋一)<青森県>弘前大学医学部附属病院(富田泰史)<岩手県>岩手医科大学附属病院(森野禎浩)<宮城県>仙台厚生病院(伊澤毅),仙台循環器病センター(八木勝宏),東北医科薬科大学病院(小丸達也)<秋田県>中通総合病院(阪本亮平)<山形県>日本海総合病院(菅原重生)<福島県>星総合病院(清野義胤)<栃木県>自治医科大学附属病院(苅尾七臣)<埼玉県>益子病院(清水昭吾)<千葉県>君津中央病院(山本雅史)<東京都>三井記念病院(田邉健吾),順天堂大学医学部附属順天堂医院(代田浩之),同愛記念病院(高橋保裕),江戸川病院(大平洋司),昭和大学江東豊洲病院(若林公平),東京女子医科大学病院(萩原誠久),総合東京病院(中野雅嗣),順天堂大学医学部附属練馬病院(田村浩),榊原記念病院(高見澤格),多摩総合医療センター(田中博之),みなみ野循環器病院(幡芳樹),東大和病院(加藤隆一),河北総合病院(登坂淳)<神奈川県>聖マリアンナ医科大学病院(明石嘉浩),横浜労災病院(柚本和彦),昭和大学藤が丘病院(鈴木洋),済生会横浜市東部病院(伊藤良明),横浜市大附属市民総合医療センター(日比潔),北里大学病院(阿古潤哉),平塚共済病院(大西祐子),東海大学医学部付属病院(伊苅裕二)<石川県>金沢循環器病院(名村正伸)<福井県>福井大学医学部附属病院(宇随弘泰),市立敦賀病院(音羽勘一)<山梨県>山梨大学医学部附属病院(尾畑純栄)<岐阜県>岐阜県総合医療センター(野田俊之),大垣市民病院(森島逸郎)<静岡県>順天堂大学医学部附属静岡病院(諏訪哲),静岡県立総合病院(坂本裕樹)<愛知県>名古屋第二赤十字病院(吉田路加),市立半田病院(鈴木進),公立陶生病院(浅野博),一宮西病院(前田拓哉)<三重県>四日市羽津医療センター(川村正樹),松阪中央総合病院 (谷川高士),名張市立病院(武内哲史郎)<滋賀県>大津赤十字病院(貝谷和昭),彦根市立病院(中野顕)<京都府>京都大学医学部附属病院(木村剛),国立病院機構京都医療センター(赤尾昌治),三菱京都病院(横松孝史)<大阪府>北野病院(猪子森明),大阪赤十字病院(稲田司),国立循環器病研究センター(野口暉夫),近畿大学医学部附属病院(中澤学),耳原総合病院(石原昭三),ベルランド総合病院(片岡亨)<兵庫県>神戸市立医療センター中央市民病院(木下愼)<奈良県>近畿大学医学部奈良病院(東儀圭則),天理よろづ相談所病院(田村俊寛)<和歌山県>日本赤十字社和歌山医療センター(渡辺大基),和歌山県立医科大学附属病院 (田中篤)<島根県>島根大学医学部附属病院(田邊一明)<岡山県>岡山赤十字病院(福家聡一郎),倉敷中央病院(門田一繁)<広島県>広島大学病院(中野由紀子)<山口県>国立病院機構岩国医療センター(片山祐介),徳山中央病院(分山隆敏),下関市立市民病院(金子武生)<徳島県>徳島大学病院(若槻哲三),徳島赤十字病院(岸宏一)<香川県>香川県立中央病院(土井正行)<愛媛県>愛媛県立中央病院(岡山英樹),松山赤十字病院(盛重邦雄)<高知県>近森病院(川井和哉)<福岡県>小倉記念病院(安藤献児),産業医科大学病院(園田信成),済生会福岡総合病院(末松延裕),福岡徳洲会病院(下村英紀)<熊本県>熊本大学医学部附属病院(辻田賢一),済生会熊本病院(坂本知浩),熊本赤十字病院(池本智一)<宮崎県>県立延岡病院(山本展誉)<鹿児島県>国立病院機構指宿医療センター(鹿島克郎),出水郡医師会広域医療センター(小瀬戸一平)<沖縄県>浦添総合病院(上原裕規),中頭病院(石盛博),全90施設


Other administrative information

Date of disclosure of the study information

2015 Year 11 Month 27 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications

https://jamanetwork.com/journals/jama/fullarticle/2736563

Number of participants that the trial has enrolled

3045

Results

3009 were included in the analysis and assigned to 1500 participants in the 1-month DAPT group and 1509 participants in the 12-month DAPT group. The primary endpoint (composite of cardiovascular death, myocardial infarction, stent thrombosis [ARC definite], stroke, and bleeding [TIMI definition major/minor]) was 2.36% in the 1-month DAPT group and 3.70% in the 12-month DAPT group, with a HR of 0.64 (95% CI 0.42-0.98), indicating non-inferiority (p<0.001) and superiority (p=0.04).

Results date posted

2020 Year 05 Month 31 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2019 Year 06 Month 25 Day

Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2015 Year 12 Month 17 Day

Date of IRB

2015 Year 12 Month 25 Day

Anticipated trial start date

2015 Year 12 Month 25 Day

Last follow-up date

2022 Year 12 Month 08 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded

2023 Year 12 Month 25 Day


Other

Other related information



Management information

Registered date

2015 Year 11 Month 27 Day

Last modified on

2021 Year 11 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000022290


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
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