Clinical Trials Logo

Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05375474
Other study ID # CSC-20220504
Secondary ID
Status Recruiting
Phase Phase 4
First received
Last updated
Start date July 27, 2023
Est. completion date December 31, 2025

Study information

Verified date October 2023
Source China National Center for Cardiovascular Diseases
Contact Yongjian Wu, MD,PhD
Phone +86 13701387189
Email yongjianwu_nccd@163.com
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This is a multicenter, open-label, randomized controlled study meant to test the superior efficacy of oral anticoagulation (OAC) therapy versus single antiplatelet therapy (SAPT) in patients after TAVR. Patients who accept successful TAVR will be randomized to receive either the OAC group (Vitamin-K antagonists) or the SAPT group (aspirin) for 6 months on a 1:1 ratio. After that, patients from both groups will be treated with single antiplatelet therapy (aspirin). All patients will be followed for 1 year to test the difference between net clinical benefits and bioprosthetic valve thrombosis diagnosed by 4D-CT.


Recruitment information / eligibility

Status Recruiting
Enrollment 650
Est. completion date December 31, 2025
Est. primary completion date December 31, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 85 Years
Eligibility Inclusion Criteria: - Patients aged 18-85 years old with severe aortic stenosis; - Successful TAVR via femoral artery approach (VARC 3 device success criteria); - Implantation of self-expanding bioprosthetic valve; - Be willing to give informed consent. Exclusion Criteria: - Patients with anticoagulant indications, such as atrial fibrillation, intracardiac thrombosis, deep vein thrombosis, pulmonary embolism, history of mechanical valve implantation; - Patients needed double antiplatelet therapy, such as acute myocardial infarction within one year, coronary stent implantation within 6 months, peripheral artery stent implantation within 3 months; - Patients who received concomitant TAVR and percutaneous coronary intervention; - Patients with peptic ulcers or active bleeding or history of cerebral hemorrhage - Patients with ischemic stroke or TIA within 6 months; - Patients with left ventricular ejection fraction < 30% or pulmonary hypertension (>70mmHg) before discharge; - Patients intolerant or allergic to aspirin or Vitamin-K antagonists (warfarin); - Patients with evaluated glomerular filtration rate <15ml/min/m2 (Cockcroft formula) or on dialysis; - Patients with poor compliance, unable to complete the study and follow-up as required; - Patients' life expectancy less than 1 year; - Patients who already participated in other clinical trials (within the last 30 days).

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Oral anticoagulation therapy
Vitamin-K antagonists (warfarin)
Single antiplatelet therapy
Aspirin

Locations

Country Name City State
China Fuwai hospital Beijing Beijing

Sponsors (1)

Lead Sponsor Collaborator
China National Center for Cardiovascular Diseases

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary A composite of all-cause mortality, myocardial infarction, stroke, TIA, peripheral artery thrombosis, intracardiac thrombosis, major bleeding (BARC 3a), and disabling/life-threatening bleeding (BARC 3b,3c,5) A composite of all-cause mortality, myocardial infarction, stroke, TIA, peripheral artery thrombosis, intracardiac thrombosis, major bleeding (BARC 3a), and disabling/life-threatening bleeding (BARC 3b,3c,5) 1 year
Primary Rates of bioprosthetic valve thrombosis detected by 4D-CT 1 year
Secondary A composite of all-cause mortality, myocardial infarction, stroke, TIA, peripheral artery thrombosis, intracardiac thrombosis A composite of all-cause mortality, myocardial infarction, stroke, TIA, peripheral artery thrombosis, intracardiac thrombosis 1 year
Secondary Major bleeding (BARC 3a), and disabling/life-threatening bleeding (BARC 3b,3c,5) Major bleeding (BARC 3a), and disabling/life-threatening bleeding (BARC 3b,3c,5) 1 year
Secondary Cardiac death Cardiac death 1 year
Secondary Minor bleeding (BRAC 2) Minor bleeding (BRAC 2) 1 year
Secondary Bleeding (BRAC 1, 2, 3a-c, 5) Bleeding (BRAC 1, 2, 3a-c, 5) 1 year
Secondary All-cause mortality All-cause mortality 1 year
Secondary Myocardial infarction Myocardial infarction 1 year
Secondary Stroke Stroke 1 year
Secondary TIA TIA 1 year
Secondary Peripheral artery thrombosis Peripheral artery thrombosis 1 year
Secondary Intracardiac thrombosis Intracardiac thrombosis 1 year
Secondary Major bleeding (BARC 3a) Major bleeding (BARC 3a) 1 year
Secondary Disabling/life-threatening bleeding (BARC 3b,3c,5) Disabling/life-threatening bleeding (BARC 3b,3c,5) 1 year
See also
  Status Clinical Trial Phase
Recruiting NCT05465655 - Cara CDRM (Conduction Disturbance Risk Monitor) 2.0 N/A
Recruiting NCT04870424 - Colchicine for Patients With Aortic Stenosis Undergoing Transcatheter Aortic Valve Replacement Phase 3
Completed NCT02758964 - Evaluation of Cerebral Thrombembolism After TAVR
Recruiting NCT05758701 - CT TAVR Abdomen Study Phase 4
Active, not recruiting NCT04281771 - Assessment of Paravalvular Leak After TAVI by Hemodynamic Measurements and Cardiac MRI N/A
Enrolling by invitation NCT06212050 - Feasibility, Safety, and Effectiveness of the ACURATE neo2 Transcatheter Heart Valve for Severe Bicuspid Aortic Stenosis
Recruiting NCT04573049 - The Effectiveness and Safety of Levosimendan in Patients With Severe Aortic Stenosis and Heart Failure Undergoing Transcatheter Aortic Valve Replacement Phase 4
Recruiting NCT05235555 - EffecTAVI Registry
Completed NCT05082337 - The SAVVY Guidewire in Transcatheter Aortic Valve Replacement Procedures N/A
Completed NCT01627691 - REPRISE II: REpositionable Percutaneous Replacement of Stenotic Aortic Valve Through Implantation of Lotus™ Valve System N/A
Recruiting NCT05075590 - Coronary Access After Supra-Annular THV Implantation N/A
Completed NCT01651780 - Open-label, Randomized Trial in Patients Undergoing TAVR to Determine Safety & Efficacy of Bivalirudin vs UFH Phase 3
Recruiting NCT05259241 - ADAPT Transcatheter Aortic Valve Intervention (TAVI & Chronic Total Occlusion Percutaneous Coronary Intervention (CTO PCI) N/A
Completed NCT04489914 - Observational Study on the Application of High-Flow Therapy After Percutaneous Transfemoral Aortic Valve Replacement
Recruiting NCT03649594 - Risk Stratification Post TAVI Using TEG
Completed NCT04659538 - The CAPTIS® Study - Embolic Protection in TAVR N/A
Recruiting NCT04107038 - Monitored Anesthesia Care vs. General Anesthesia for Transcatheter Aortic Valve Replacement N/A
Withdrawn NCT04268160 - GPx Activity in Subjects With Aortic Stenosis Undergoing TAVR
Recruiting NCT02812953 - Biological Collection and Registry of Patients Who Will Have a TAVR (Transcatheter Aortic Valve Replacement) Intervention
Recruiting NCT05217888 - The Sentinel Registry