Vitamin K Antagonist in Rheumatic Heart Disease Patients With Mechanical Heart Valves: Our Current Status
VKA and RHD
1 other identifier
observational
165
0 countries
N/A
Brief Summary
VKA in RHD patients with MHV: our current status
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Sep 2025
Typical duration for all trials
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
August 4, 2025
CompletedFirst Posted
Study publicly available on registry
August 28, 2025
CompletedStudy Start
First participant enrolled
September 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 1, 2027
August 28, 2025
August 1, 2025
2 years
August 4, 2025
August 21, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Time in therapeutic range (TTR) for warfarin.
TTR status will be calculated using the most recent INR value and patient records to determine whether INR is within the target therapeutic range (2.0-3.5) at the time of data collection.
Baseline
2. Correlation Between TTR and Patient-Specific Factors
Assesses the relationship between INR control and factors such as age, comorbidities, adherence, vitamin K intake, and medication use based on data collected at the single study visit.
Baseline
Secondary Outcomes (3)
1. Number of Participants With Reported Bleeding Events (Major or Minor)
Baseline
Number of Participants With Thromboembolic Events
Baseline
Rate of Patient Adherence to Warfarin Therapy
Baseline
Eligibility Criteria
Data collection: Data will be collected directly by the researcher and will be reviewed by the supervising team to ensure accuracy and consistency. The data collection process will involve recording INR observation , clinical evaluations Each participant will have their data entered into a secure database for further analysis.
You may qualify if:
- Confirmed presence of a mechanical heart valve.
- Aged ≥18 years
You may not qualify if:
- Pregnancy.
- Active bleeding disorders.
- Severe liver/kidney disease (if affecting anticoagulation).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (4)
Watkins DA, Johnson CO, Colquhoun SM, Karthikeyan G, Beaton A, Bukhman G, Forouzanfar MH, Longenecker CT, Mayosi BM, Mensah GA, Nascimento BR, Ribeiro ALP, Sable CA, Steer AC, Naghavi M, Mokdad AH, Murray CJL, Vos T, Carapetis JR, Roth GA. Global, Regional, and National Burden of Rheumatic Heart Disease, 1990-2015. N Engl J Med. 2017 Aug 24;377(8):713-722. doi: 10.1056/NEJMoa1603693.
PMID: 28834488BACKGROUNDBeckmann A, Meyer R, Lewandowski J, Markewitz A, Blassfeld D, Boning A. German Heart Surgery Report 2022: The Annual Updated Registry of the German Society for Thoracic and Cardiovascular Surgery. Thorac Cardiovasc Surg. 2023 Aug;71(5):340-355. doi: 10.1055/s-0043-1769597. Epub 2023 Jun 16.
PMID: 37327912BACKGROUNDEl-Hamamsy I, Toyoda N, Itagaki S, Stelzer P, Varghese R, Williams EE, Erogova N, Adams DH. Propensity-Matched Comparison of the Ross Procedure and Prosthetic Aortic Valve Replacement in Adults. J Am Coll Cardiol. 2022 Mar 1;79(8):805-815. doi: 10.1016/j.jacc.2021.11.057.
PMID: 35210036BACKGROUNDZilla P, Human P, Pennel T. Mechanical valve replacement for patients with rheumatic heart disease: the reality of INR control in Africa and beyond. Front Cardiovasc Med. 2024 Feb 9;11:1347838. doi: 10.3389/fcvm.2024.1347838. eCollection 2024.
PMID: 38404722BACKGROUND
Related Links
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Hamdy Shams Mohamed
- PRINCIPAL INVESTIGATOR
Tarek hameed Nageeb
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- principal investigator
Study Record Dates
First Submitted
August 4, 2025
First Posted
August 28, 2025
Study Start
September 1, 2025
Primary Completion (Estimated)
September 1, 2027
Study Completion (Estimated)
October 1, 2027
Last Updated
August 28, 2025
Record last verified: 2025-08