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A Study to Evaluate the Impact of 11-month Ticagrelor Monotherapy Following One-month DAPT After PCI

A Prospective, Multi-center, Single-group Target Value Post-marketing Clinical Study to Evaluate the Safety and Effectiveness of the HT Supreme Drug-eluting Stent System in the Treatment of Real-world Patients With Coronary Heart Disease

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05015699
Enrollment
0
Registered
2021-08-20
Start date
2021-09-30
Completion date
2025-07-31
Last updated
2024-04-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coronary Artery Disease

Keywords

Healing-Targeted Supreme, one month DAPT

Brief summary

PIONEER IV CHINA is sought to investigate the safety and efficacy of 11-month ticagrelor monotherapy following one-month dual antiplatelet therapy (DAPT) after HT Supreme drug-eluting stent system at 12 months follow-up.

Detailed description

This study is a prospective, multi-center, single-arm objective performance criteria clinical trial in an all-comers patient population (including patients with high bleeding risk, HBR) undergoing PCI with unrestrictive use of the HT Supreme sirolimus-eluting stent and treated with 11-month ticagrelor monotherapy following one-month dual antiplatelet therapy (DAPT) in approximately 285 patients (including 80 coronary heart disease cases entering the OCT subgroup). All patients will be (at minimum) contacted via visit at 30 days (±7 days) and at 12 months (±30 days), and by phone contact at 6 months (±14 days), 24 months (±30 days) and 36 months (±45 days) post index procedure to assess clinical status and adverse events. The Primary Endpoint for this trial is Patient-oriented Composite Endpoint (PoCE) at 12 months post-procedure.

Interventions

DEVICEHT Supreme

HT Supreme ( R&D by Sinomed, Tianjin, China)

Sponsors

The Second Affiliated Hospital of Harbin Medical University
CollaboratorOTHER
Sino Medical Sciences Technology Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Male or female patient ≥18 years of age; 2. Patient has chronic stable angina, acute coronary syndromes or silent ischemia; 3. Presence of one or more coronary artery stenoses of ≥50% (by visual assessment) in a native coronary artery (with or without prior stent/other device treatment) or in a saphenous venous or arterial bypass conduit suitable for coronary stent implantation; 4. The vessel should have a reference vessel diameter of at least 2.25 mm by visual assessment (no limitation on the number of treated lesions, vessels, or lesion length); 5. Patient has been informed of the nature of the study and agrees to its provisions and has provided written informed consent as approved by the Ethical Committee and is willing to comply with all protocol-required (follow-up) evaluations.

Exclusion criteria

1. under 18 years of age; 2. Unable to sign written informed consent 3. Patient is a woman who is pregnant or nursing 4. Known intolerance to cobalt chromium, and medications such as sirolimus, aspirin, heparin, bivalirudin or P2Y12 inhibitors; 5. Planned major elective surgery requiring discontinuation of DAPT within 12 months of procedure; 6. Concurrent medical condition with a life expectancy of less than 3 years; 7. Currently participating in another trial and not yet at its primary endpoint 8. Active pathological bleeding; 9. History of intracranial haemorrhage. OCT

Design outcomes

Primary

MeasureTime frameDescription
Rate of Patient-oriented Composite Endpoint (PoCE) at 12 months post-procedure.12 months post-procedurePoCE is a composite clinical endpoint of: all-cause death; any stroke, Modified Rankin scale, (MRS ≥1); any myocardial infarction (peri-procedural MI according to SCAI, spontaneous according to 4th universal definition); any clinically and physiologically driven revascularization (ARC-2)

Secondary

MeasureTime frameDescription
Rate of Device-oriented composite endpoint (DoCE) at all timepoints;30days, 6months, annually up to 3 years post procedureVoCE is a composite clinical endpoint of: Cardiovascular Death;Target-vessel related MI;Clinically and physiologically-oriented Target lesion revascularization
Rate of Stent thrombosis30days, 6months, annually up to 3 years post procedureStent thrombosis is consist of Definite stent thrombosis; Probable stent thrombosis; Definite or probable stent thrombosis
Rate of Target-vessel failure composite endpoint30days, 6months, annually up to 3 years post procedureTVF is a composite clinical endpoint of: Cardiac death; Myocardial Infarction (MI) (unless clearly attributable to a non target vessel); Target vessel revascularization
Rate of Individual components of Target-vessel failure composite endpoint30days, 6months, annually up to 3 years post procedureTVF is a composite clinical endpoint of: Cardiac death; Myocardial Infarction (MI) (unless clearly attributable to a non target vessel); Target vessel revascularization
Rate of Bleeding according to BARC (2, 3 and 5) classification30days, 6months, annually up to 3 years post procedureDefining high bleeding risk in patients undergoing percutaneous coronary intervention: a consensus document from the Academic Research Consortium for High Bleeding Risk
Rate of Net adverse clinical and cerebral events30days, 6months, annually up to 3 years post procedureNACCE is a composite clinical endpoint of: any cause, myocardial infarction (MI), cerebral vascular accident, and major bleeding (according to the modified REPLACE-2 and GUSTO criteria)
Cost-Effectivenesshospitalization, 1 year post procedureCost of procedure will be collected in the eCRF(e.g. diagnostic tests, procedural materials, time of the procedure, re-angiography, repeat revascularization, etc. will be quantified).
Rate of Patient oriented composite endpoint (PoCE) at 2 and 3 years;2 and 3 years post-procedurePoCE is a composite clinical endpoint of: all-cause death; any stroke, Modified Rankin scale, (MRS ≥1); any myocardial infarction (periprocedural MI according to SCAI, spontaneous according to 4th universal definition); any clinically and physiologically driven revascularization (ARC-2)
Rate of Individual components of patient-oriented composite endpoint;1, 2 and 3 years post-procedurePoCE is a composite clinical endpoint of: all-cause death; any stroke, Modified Rankin scale, (MRS ≥1); any myocardial infarction (periprocedural MI according to SCAI, spontaneous according to 4th universal definition); any clinically and physiologically driven revascularization (ARC-2)
Rate of Vessel-oriented composite endpoints (VoCE)1, 2 and 3 years post-procedureVoCE is a composite clinical endpoint of: Vessel-related cardiovascular Death; Target-vessel related MI; Clinically and physiologically-oriented Target vessel revascularization (ARC-2)
Rate of Individual components of vessel-oriented composite endpoint;1, 2 and 3 years post-procedureVoCE is a composite clinical endpoint of: Vessel-related cardiovascular Death; Target-vessel related MI; Clinically and physiologically-oriented Target vessel revascularization (ARC-2)
Rate of Individual components of device-oriented composite endpoint;30days, 6months, annually up to 3 years post procedureVoCE is a composite clinical endpoint of: Cardiovascular Death;Target-vessel related MI;Clinically and physiologically-oriented Target lesion revascularization
Rate of Pre-procedural myocardioal infarction according to 4th universal definition;30days, 6months, annually up to 3 years post procedureFourth Universal Definition of Myocardial Infarction (2018)
Device Success Rateintra-operativeaccording to the statement from European Association of Percutaneous Cardiovascular Interventions (EAPCI) of the European Society of Cardiology (ESC))

Other

MeasureTime frameDescription
Mean/Minimal Stent diameter/area/volume1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT measures Mean/Minimal Stent diameter(mm)/area(mm2)/volume(mm3)
Mean/maximal thickness of the struts coverage(%)1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT measures Mean/maximal thickness of the struts coverage
Mean/Minimal Lumen diameter/area/volume1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT measures Mean/Minimal Lumen diameter(mm)/area(mm2)/volume(mm3)
Incomplete strut apposition(%)1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT examination was carried out at 1 month after the operation to evaluate incomplete strut apposition
The percentage of the struts' neointimal coverage (%) measured by OCT1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT examination was carried out at 1 month after the operation to evaluate percentage of the struts' neointimal coverage
Neointimal hyperplasia area/volume measured by OCT1 month post procedure80 patients enrolled with an extra one-month OCT follow-up as a subgroup analysis target. OCT measures Neointimal hyperplasia area(mm2)/volume(mm3)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026