Study Stopped
Poor enrollment
Frequency of Reduced Leaflet Motion After Surgical Aortic Valve Replacement and Transcatheter Aortic Valve Replacement.
A Pilot Study of Subclinical Leaflet Thrombosis in Bioprosthetic Aortic Valves: A Randomized Controlled Trial
1 other identifier
interventional
3
1 country
1
Brief Summary
This is a prospective, randomized pilot study in patients undergoing Sugical Aortic Valve Replacement (SAVR) and Transcatheter Aortic Valve Replacement (TAVR) to estimate the incidence of reduced leaflet motion and assess the impact of perioperative anticoagulation on the incidence of reduced leaflet motion.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Feb 2016
1 active site
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
Study Start
First participant enrolled
February 1, 2016
CompletedFirst Submitted
Initial submission to the registry
February 16, 2016
CompletedFirst Posted
Study publicly available on registry
March 2, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 28, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
July 28, 2017
CompletedResults Posted
Study results publicly available
November 8, 2017
CompletedAugust 24, 2018
July 1, 2018
1.5 years
February 16, 2016
September 11, 2017
July 26, 2018
Conditions
Outcome Measures
Primary Outcomes (1)
Leaflet Motion
Frequency of reduced leaflet motion related to perioperative anticoagulation with warfarin as measured by 4DMCT data. (\<50% reduction in motion), moderately reduced (50 to 70% reduction), severely reduced (\>70% reduction), or immobile (lack of motion of at least one valve leaflet).
4-6 weeks post procedure
Study Arms (4)
SAVR Warfarin Arm
EXPERIMENTALWarfarin arm-(target INR of 2-3)
TAVR Warfarin and Clopidogrel Arm
EXPERIMENTALWarfarin (target INR of 2-3) and Clopidogrel (75mg/day) arm
SAVR Aspirin Arm
EXPERIMENTALAspirin arm (81mg/day)
TAVR Aspirin and Clopidogrel Arm
EXPERIMENTALAspirin (81mg/day) and Clopidogrel (75mg/day) arm
Interventions
Warfarin treatment for 12 weeks with a target INR of 2-3 Warfarin treatment to begin on postoperative day 1-3 according to the patient's clinical status When warfarin treatment is discontinued, patients will be treated according to standard of care (aspirin 81 mg/day) indefinitely
Aspirin (81 mg/day) to begin within 1-3 postoperative days according to the patient's clinical status and continue indefinitely per standard of care.
Begin Warfarin and clopidogrel (75 mg/day) treatment within 1-3 days postop for 12 weeks with a target INR of 2-3 When warfarin is discontinued, begin aspirin (81 mg/day) and continue aspirin/clopidogrel for 12 weeks At 24 weeks, study treatment will end and patients will be treated according to standard of care (aspirin 81 mg/day) indefinitely
Aspirin (81 mg/day) and clopidogrel (75 mg/day) in periprocedural period and continue for 24 weeks At 24 weeks, study treatment will end and patients will be treated according to standard of care (aspirin 81 mg/day) indefinitely
Eligibility Criteria
You may qualify if:
- Scheduled for SAVR or TAVR
- Age \> 18 years
- Able and willing to give informed consent
- Able and willing to return for follow up
You may not qualify if:
- Contraindications to warfarin, Plavix or aspirin
- Pre-existing medical indication for warfarin, Plavix or aspirin
- History of previous cardiac surgery
- History of previous coronary artery stenting
- Requirement for concomitant coronary artery bypass grafting or mitral valve surgery or surgical treatment of an ascending aortic aneurysm
- Contraindications to contrast-enhanced MDCT including anaphylactic iodine allergy, uncontrolled atrial fibrillation, renal dysfunction (GFR \< 60 ml/min).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Cleveland Clinic
Cleveland, Ohio, 44195, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Douglas Johnston
- Organization
- Cleveland Clinic
Study Officials
- PRINCIPAL INVESTIGATOR
Douglas Johnston, M.D.
The Cleveland Clinic
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD
Study Record Dates
First Submitted
February 16, 2016
First Posted
March 2, 2016
Study Start
February 1, 2016
Primary Completion
July 28, 2017
Study Completion
July 28, 2017
Last Updated
August 24, 2018
Results First Posted
November 8, 2017
Record last verified: 2018-07
Data Sharing
- IPD Sharing
- Will not share