NCT03797651

Brief Summary

We hypothesized that ticagrelor monotherapy might be enough to prevent thromboembolic events without aspirin after PCI in patients with acute coronary syndrome(ACS). Moreover, ticagrelor monotherapy will reduce bleeding risk compared to DAPT with aspirin plus ticagrelor. We will also evaluate 1-year safety and efficacy of Orsiro stent for patient with acute coronary syndrome. After confirmation of enrollment, patients will be randomized to continue standard treatment (aspirin plus ticagrelor) for 1 year or to stop aspirin after discharge or less than 1 month after PCI (ticagrelor monotherapy). Randomization will be stratified according to 1) the presence of diabetes and 2) ST elevation myocardial infarction (MI). Baseline clinical and angiographic characteristics, laboratory findings will be assessed at the time of randomization. All patients will provide informed consent on their own initiative.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
2,850

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Apr 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 6, 2019

Completed
3 days until next milestone

First Posted

Study publicly available on registry

January 9, 2019

Completed
4 months until next milestone

Study Start

First participant enrolled

April 24, 2019

Completed
6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 4, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 4, 2025

Completed
Last Updated

March 7, 2023

Status Verified

March 1, 2023

Enrollment Period

6 years

First QC Date

January 6, 2019

Last Update Submit

March 3, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Net clinical benefit

    A composite of all-cause death, MI, stent thrombosis, stroke, major bleeding

    1 year after procedure

Secondary Outcomes (4)

  • Each components of net clinical benefit

    1 year after procedure

  • Cardiovascular mortality

    1 year after procedure

  • Major or minor bleeding

    1 year after procedure

  • Major adverse cardiac event

    1 year after procedure

Study Arms (2)

Standard DAPT

ACTIVE COMPARATOR

Patient will continue standard treatment (aspirin plus ticagrelor) for 1 year. Dosage of ticagrelor would be 90 mg twice a day, and 100 mg of aspirin will be prescribed once a day.

Drug: Standard DAPT

Very-short DAPT within 1 month

EXPERIMENTAL

Patient will stop aspirin after discharge (DAPT less than 1 months after PCI) (ticagrelor monotherapy). Dosage of ticagrelor would be 90 mg twice a day, and 100 mg of aspirin will be prescribed once a day (during hospitalization).

Drug: Very-short DAPT less than 1 month after PCI

Interventions

Patient will continue standard treatment (aspirin plus ticagrelor) for 1 year. Dosage of ticagrelor would be 90 mg twice a day, and 100 mg of aspirin will be prescribed once a day.

Standard DAPT

Patient will stop aspirin (ticagrelor monotherapy) after discharge or within 1 month. Dosage of ticagrelor would be 90 mg twice a day, and 100 mg of aspirin will be prescribed once a day (during hospitalization).

Very-short DAPT within 1 month

Eligibility Criteria

Age19 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients ≥19 years old
  • Patients who received new generation sirolimus-eluting (Orsiro® series) stent implantation for treating ACS, including acute MI and unstable angina
  • Provision of informed consent

You may not qualify if:

  • Age\> 80 years
  • Increased risk of bleeding, anemia, thrombocytopenia
  • A need for oral anticoagulation therapy
  • Pregnant women or women with potential childbearing
  • Life expectancy \< 1 year

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yonsei Cardiovascular Center and Cardiovascular Research Institute, Yonsei University College of Medicine

Seoul, 03722, South Korea

RECRUITING

Related Publications (1)

  • Hong SJ, Lee SJ, Suh Y, Yun KH, Kang TS, Shin S, Kwon SW, Lee JW, Cho DK, Park JK, Bae JW, Kang WC, Kim S, Lee YJ, Ahn CM, Kim JS, Kim BK, Ko YG, Choi D, Jang Y, Hong MK; T-PASS (Ticagrelor Monotherapy in Patients Treated With New-Generation Drug-Eluting Stents for Acute Coronary Syndrome) Investigators. Stopping Aspirin Within 1 Month After Stenting for Ticagrelor Monotherapy in Acute Coronary Syndrome: The T-PASS Randomized Noninferiority Trial. Circulation. 2024 Feb 20;149(8):562-573. doi: 10.1161/CIRCULATIONAHA.123.066943. Epub 2023 Oct 25.

MeSH Terms

Conditions

Coronary Artery DiseaseAcute Coronary Syndrome

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Study Officials

  • Myeong-Ki Hong

    Division of Cardiology, Severance Hospital, Yonsei University College of Medicine

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Myeong-Ki Hong, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 6, 2019

First Posted

January 9, 2019

Study Start

April 24, 2019

Primary Completion

April 4, 2025

Study Completion

April 4, 2025

Last Updated

March 7, 2023

Record last verified: 2023-03

Locations