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Single vs. Dual Antiplatelet Therapy in Patients Undergoing Percutaneous Intervention With DCB-only Strategy (KONG-FREEDOM-I) (KONG-FREEDOM-I)

14. august 2026 opdateret af: Gan Lijun

An Investigator-initiated, Multicenter, Open-label, Randomized Controlled Non-inferiority Trial to Assess the Single vs. Dual Antiplatelet Therapy in the Chronic Coronary Syndrome (CCS) and Stable Acute Coronary Syndrome (S-ACS) Patients Undergoing Percutaneous Intervention With Drug-coated Balloons (DCB)-Only Strategy (KONG-FREEDOM-I)

This investigator-initiated, multicenter, open-label, randomized clinical trial evaluates the safety and efficacy of single antiplatelet therapy (SAPT) utilizing a P2Y12 inhibitor compared to dual antiplatelet therapy (DAPT) in the chronic coronary syndrome (CCS) and stable Acute Coronary Syndrome (S-ACS) patients undergoing percutaneous coronary intervention (PCI) with the latest generation rapamycin drug-coated balloon (DCB) without stent implantation. The study aims to assess rates of ischemic and bleeding adverse events.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The purpose of the KONG-FREEDOM-I study is to evaluate the efficacy and safety of single antiplatelet therapy (SAPT) utilizing a P2Y12 inhibitor after successful PCI with the Fireliums coronary rapamycin drug-eluting balloon without stent implantation in coronary artery disease in vessels with a diameter between 2.0 and 4.5 mm, compared to routine dual antiplatelet therapy (DAPT). Patients with chronic coronary syndrome (CCS) and stable Acute Coronary Syndrome (S-ACS) will be enrolled and randomized in this study.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

2170

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

  • Kina
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina
        • Ikke rekrutterer endnu
        • Beijing Luhe Hospital Capital Medical University
        • Kontakt:
        • Kontakt:
    • Hainan
      • Haikou, Hainan, Kina
        • Ikke rekrutterer endnu
        • The First Affiliated Hospital of Hainan Medical University
    • Heilongjiang
      • Harbin, Heilongjiang, Kina
        • Ikke rekrutterer endnu
        • The 2nd Affiliated Hospital of Harbin Medical University
        • Kontakt:
    • Jiangxi
      • Nanchang, Jiangxi, Kina
        • Ikke rekrutterer endnu
        • The Second Affiliated Hospital of Nanchang University
    • Shandong
      • Heze, Shandong, Kina
        • Ikke rekrutterer endnu
        • Heze Municipal Hospital
        • Kontakt:
        • Kontakt:
      • Jinan, Shandong, Kina
        • Ikke rekrutterer endnu
        • Shandong Provincial Hospital
        • Kontakt:
        • Kontakt:
      • Jinan, Shandong, Kina
        • Ikke rekrutterer endnu
        • Shandong Provincial Third Hospital
        • Kontakt:
        • Kontakt:
      • Jining, Shandong, Kina, 272029
        • Rekruttering
        • Affiliated Hospital of Jining Medical University
        • Kontakt:
      • Liaocheng, Shandong, Kina
        • Ikke rekrutterer endnu
        • Liaocheng People's Hospital
        • Kontakt:
      • Qingdao, Shandong, Kina
        • Ikke rekrutterer endnu
        • Qingdao Municipal Hospital
        • Kontakt:
        • Kontakt:
      • Tai’an, Shandong, Kina
        • Ikke rekrutterer endnu
        • Tai'an City Central Hospital
      • Zaozhuang, Shandong, Kina
        • Ikke rekrutterer endnu
        • Zaozhuang Municipal Hospital
        • Kontakt:
        • Kontakt:
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Kina
        • Ikke rekrutterer endnu
        • Shanghai Fengxian District People's Hospital
        • Kontakt:
        • Kontakt:
    • Xinjiang
      • Ürümqi, Xinjiang, Kina
        • Ikke rekrutterer endnu
        • The First Affiliated Hospital of Xinjiang Medical University

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

Subjects who successfully underwent percutaneous coronary intervention (PCI) with drug-coated balloon (DCB) treatment without stent implantation are eligible for inclusion in this study if Male and female patients who meet the following criteria：

  1. Age ≥ 18 years.
  2. target lesion in vessels with diameter ≥2.0 and ≤4.5 mm (visual estimation).
  3. the total target vessels ≤2 and a total of target lesions ≤2.
  4. Total length of DCB used for target lesions <60 mm.
  5. The subject's indication for PCI is chronic coronary syndrome (CCS) and stable Acute Coronary Syndrome (S-ACS), include Silent Ischemia, stable angina (SA), unstable angina (UA), non-ST-segment elevation myocardial (NSTEMI), or ST-segment elevation acute myocardial infarction (STEMI) with onset >2 weeks.
  6. All lesions were successfully treated with a drug-eluting balloon during routine clinical practice, i.e., post-procedural angiographic visual diameter stenosis <30%.
  7. At the operator's discretion, no flow-limiting angiographic complications requiring extension of dual antiplatelet therapy (DAPT)have occurred.
  8. All PCI stages have been completed (if applicable), and no further PCI procedures are planned.

Inclusion criteria at the randomization visit within 24 hours post-index PCI:

At the time of the randomization visit (within 24 hours after successful drug-eluting balloon treatment during index PCI), the following criteria mustbe met:

The subject must have had an uneventful clinical course within 24 hours post-index PCI, i.e., no myocardial infarction,symptomatic restenosis, device-related thrombus formation, stroke, or any revascularization procedure (coronary or non-coronary)requiring extension of dual antiplatelet therapy.

Exclusion Criteria:

Patients will be ineligible if they meet any of the following criteria:

  1. Stent implantation within 6 months prior to index percutaneous coronary intervention (PCI).
  2. Treatment for in-stent thrombosis (IST) at the time of index PCI or within 6 months prior to it.
  3. Treatment with a bioabsorbable stent at any time prior to index PCI.
  4. Acute myocardial infarction with ST-segment elevation within the past two weeks.
  5. True bifurcation lesions requiring treatment with two stents (Medina 1,1,1/1,0,1/0,1,1) with a branch vessel diameter≥2.5 mm (visual estimation).
  6. Chronic total occlusion of the target lesion (≥3 months).
  7. Unprotected left main coronary artery.
  8. Thrombus present in the target lesion (imaging/visual).
  9. Total length of DCB used in the target lesion ≥60 mm.
  10. Active bleeding requiring medical intervention (BARC ≥2) at the time of randomization.
  11. Indications for long-term oral anticoagulation therapy.
  12. Life expectancy of less than 1 year.
  13. Known allergy or hypersensitivity to aspirin, clopidogrel, ticagrelor, or sirolimus.
  14. Currently participating in another trial and has not yet reached the primary endpoint.
  15. History of asthma induced by salicylates or substances with similar effects (particularly nonsteroidal anti-inflammatory drugs).
  16. Pregnant or breastfeeding women.
  17. Inability to understand and follow study-related instructions or to comply with the study protocol.
  18. Inability to provide written informed consent

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Dobbelt antiblodpladebehandling
Medicin: Dobbelt antiblodpladebehandling (DAPT)
Det antitrombotiske regime vil følge standarden for pleje med et dobbelt trombocythæmmende regime (DAPT) i henhold til lokale præferencer og internationale retningslinjer/ARC konsensuspapir. Type af middel og behandlingsvarighed vil blive valgt i henhold til patientens kliniske karakteristika.
Enhed: Drug-coated balloon
Fireliums rapamycin eluting coronary balloon dilatation catheter is a rapid exchange catheter, it has a patented microcrystalline coating process to ensure rapid drug delivery to the blood vessel wall and achieve a long-lasting sustained release effect, intended for coronary arteries percutaneous transluminal angioplasties. Patients assigned to this arm will be treated with a Drug-Coated Balloon (DCB) after pre-dilatation, the angiography will be conducted as standard of care.
Eksperimentel: Enkelt blodpladehæmmende behandling
Enhed: Drug-coated balloon
Fireliums rapamycin eluting coronary balloon dilatation catheter is a rapid exchange catheter, it has a patented microcrystalline coating process to ensure rapid drug delivery to the blood vessel wall and achieve a long-lasting sustained release effect, intended for coronary arteries percutaneous transluminal angioplasties. Patients assigned to this arm will be treated with a Drug-Coated Balloon (DCB) after pre-dilatation, the angiography will be conducted as standard of care.
Medicin: Single antiplatelet therapy (SAPT)
The antithrombotic regimen is single antiplatelet (P2Y12 inhibitor）therapy (SAPT). The Investigator will decide whether to use ticagrelor first; if ticagrelor is not the first-line recommended drug, then clopidogrel will be considered. The type of agent and treatment duration will be selected according to the clinical characteristics of the patient.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Rate of Net Adverse Clinical Events (NACE) at 12 months after randomization
Tidsramme: 12 months after randomization
Noninferiority of single antiplatelet therapy (SAPT) versus dual antiplatelet therapy (DAPT) in stable and unstable acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI) with drug-coated balloons (DCB) without stent implantation assessed by the rate of Net Adverse Clinical Events (NACE). NACE is defined as the composite of all-cause mortality, myocardial infarction, stroke, and bleeding events (defined as BARC grade 3 or 5) following successful PCI with DCB without stent implantation at 12 months after randomization.
12 months after randomization

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Rate of Clinically Relevant Bleeding Events (Bleeding Academic Research Consortium [BARC] Scale, Grades 2-5; range 0-5, where higher grades indicate more severe bleeding and worse clinical outcome)
Tidsramme: 1, 3, 6, 12 and 24 months after randomization
Incidence of clinically relevant bleeding events classified as BARC grades 2, 3, or 5 according to the Bleeding Academic Research Consortium (BARC) bleeding definition (scale range 0-5; higher scores indicate worse outcome) in the chronic coronary syndrome (CCS) and stable Acute Coronary Syndrome (S-ACS) patients treated with single antiplatelet therapy (SAPT) versus dual antiplatelet therapy (DAPT) following percutaneous coronary intervention (PCI) with drug-coated balloon (DCB) without stent implantation.
1, 3, 6, 12 and 24 months after randomization
Patient-oriented composite endpoint (PoCE)
Tidsramme: 1, 3, 6, 12 and 24 months after randomization
Composite of all-cause death, all myocardial infarctions (MIs), or any repeat revascularization.
1, 3, 6, 12 and 24 months after randomization
Device-oriented Composite Endpoint (DoCE)
Tidsramme: 1, 3, 6, 12 and 24 months after randomization
Composite of cardiac death, target vessel myocardial infarction (TV-MI), and clinically driven target lesion revascularization (CI-TLR)
1, 3, 6, 12 and 24 months after randomization

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Gan Lijun

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

4. maj 2026

Primær færdiggørelse (Anslået)

31. december 2029

Studieafslutning (Anslået)

31. december 2030

Datoer for studieregistrering

Først indsendt

8. maj 2026

Først indsendt, der opfyldte QC-kriterier

8. maj 2026

Først opslået (Faktiske)

14. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

17. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • JYFY-CV-001

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

After publication of first manuscript and trial results, the de-identified data will be shared by permission of principle investigator, when asked

IPD-delingstidsramme

After publication of first manuscript and trial results, the de-identified data will be shared by permission of principle investigator, when asked

IPD-delingsadgangskriterier

After publication of first manuscript and trial results, the de-identified data will be shared by permission of principle investigator, when asked

IPD-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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