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A Novel Ferumoxytol-enhanced Cardiac Magnetic Resonance Imaging for the Detection of Intracardiac Thrombus

Sponsor
The First Affiliated Hospital with Nanjing Medical University (Other)
Overall Status
Recruiting
CT.gov ID
NCT06146751
Collaborator
Chia Tai Tianqing Pharmaceutical Group Co., Ltd. (Industry)
320
Enrollment
1
Location
17
Anticipated Duration (Months)
18.9
Patients Per Site Per Month

Study Details

Study Description

Brief Summary

The incidence of thrombosis in ventricular aneurysm was reported to be 35%-40%, which may lead to systemic thromboembolism. Patients with ventricular aneurysm without detectable thrombus are not routinely treated with anticoagulation. Therefore, the accuracy of intracardiac thrombus detection has an important impact on clinical management decisions. Currently, transthoracic echocardiography is the most commonly used method to detect intracardiac thrombus, but its sensitivity and positive predictive value are low. Cardiac magnetic resonance has a higher diagnostic accuracy for intracardiac thrombus, and its sensitivity and positive predictive value are higher than those of transthoracic echocardiography and CT. However, the gadolinium-based contrast agents commonly used for enhanced magnetic resonance imaging have some problems such as nephrogenic systemic fibrosis, gadolinium deposition in the brain, and short imaging time. Ferumoxytol, a superparamagnetic iron oxide nanoparticle, can be used for off-label enhanced magnetic resonance imaging. Its long intravascular half-life makes it suitable for enhanced magnetic resonance imaging with complex scanning procedures and long repetitive scans. Ferumoxytol is cleared from the blood pool by macrophages of the reticuloendothelial system, mainly in the spleen and lymph nodes. Therefore, ferumoxytol has a favourable safety even in adults and children with end-stage renal failure. The aim of this study is to evaluate the effectiveness of a novel ferumoxytol-enhanced cardiac magnetic resonance in detecting intracardiac thrombus in patients with ventricular aneurysm and after percutaneous ventricular reconstruction.

Condition or Disease Intervention/Treatment Phase
  • Drug: Superparamagnetic Iron Oxide Nanoparticles

Detailed Description

Ferumoxytol is a member of ultrasmall superparamagnetic iron oxide particles with an average diameter of 30 nm, originally developed as an intravascular contrast agent for MRI. Ferumoxytol was approved by the FDA in 2009 for the intravenous treatment of iron deficiency anaemia in adults with chronic kidney disease, and has also been used off-label as a non-gadolinium contrast agent for whole-body magnetic resonance imaging. Its iron oxide core is coated with dextran, which reduces immunogenicity and delays phagocytosis and the release of elemental iron from the core. As a result, ferumoxytol has a long intravascular half-life of approximately 15 hours and is slowly taken up by the macrophages of the reticuloendothelial system. Because of its long half-life, ferumoxytol is suitable for enhanced magnetic resonance imaging with complex scanning procedures and long repetitive scans. Ferumoxytol has been proved to be safe even in adults and children with end-stage renal failure. As feraheme is not available in the Chinese market, we experimentally synthesised a new formulation of ferumoxytol, which is identical to ferumoxytol in terms of physicochemical structure, pharmacokinetics and toxicological effects, at the request of Chia Tai Tianqing Pharmaceutical Group Co, Ltd (Nanjing, China) in 2014. This study is a single-centre, prospective, observational, non-randomised study. The study will enrol patients with ventricular aneurysm and after percutaneous ventricular reconstruction. The aim of this study is to evaluate the effectiveness of ferumoxytol-enhanced cardiac magnetic resonance imaging in detecting intracardiac thrombus in patients with ventricular aneurysm and left ventricular thrombus in the dynamic chamber and static chamber in patients 180±30 days after percutaneous ventricular reconstruction by comparing the detection rate of intracardiac thrombus with ferumoxytol-enhanced cardiac magnetic resonance imaging and transthoracic echocardiography, and to provide a clinical basis for the development and application of the new generation of magnetic resonance contrast agents in China. The echocardiography and magnetic resonance imaging experts were blinded to each other's results.

Study Design

Study Type:
Observational
Anticipated Enrollment :
320 participants
Observational Model:
Other
Time Perspective:
Prospective
Official Title:
A Novel Ferumoxytol-enhanced Cardiac Magnetic Resonance Imaging for the Detection of Intracardiac Thrombus in Patients With Ventricular Aneurysm and After Percutaneous Ventricular Reconstruction
Actual Study Start Date :
Nov 1, 2023
Anticipated Primary Completion Date :
Mar 31, 2025
Anticipated Study Completion Date :
Mar 31, 2025

Arms and Interventions

Arm Intervention/Treatment
patients with ventricular aneurysm and after percutaneous ventricular reconstruction

Patients with ventricular aneurysm and after percutaneous ventricular reconstruction undergo a novel ferumoxytol-enhanced cardiac magnetic resonance imaging and transthoracic echocardiography.

Drug: Superparamagnetic Iron Oxide Nanoparticles
Patients will receive a novel ferumoxytol-enhanced cardiac magnetic resonance imaging.
Other Names:
  • ferumoxytol

    		•

    Outcome Measures

    Primary Outcome Measures

    1. detection rate of intracardiac thrombus [Nov. 1st, 2023 to Mar. 31st, 2025]

      Detection rate of intracardiac thrombus by ferumoxytol-enhanced magnetic resonance and transthoracic echocardiography

    2. detection rate of thrombus in dynamic chamber and static chamber [Nov. 1st, 2023 to Mar. 31st, 2025]

      Detection rate of thrombus in dynamic chamber and static chamber by ferumoxytol-enhanced magnetic resonance and transthoracic echocardiography in patients after percutaneous ventricular reconstruction

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 80 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion criteria:

    1. Age ≥ 18 years and ≤ 80 years;

    2. Patients with left ventricular aneurysm detected by transthoracic echocardiography or 180±30 days after percutaneous ventricular reconstruction;

    3. An informed consent form was signed voluntarily by the patients or an authorised family member.

    Exclusion criteria:

    1. Patients unable to lie down for any reason;

    2. Patients who are unable to undergo MRI for psychological (e.g. suffering from claustrophobia syndrome) or physical reasons (e.g. non-antimagnetic metal retention in the body, hearing impairment, involuntary body movements, etc.);

    3. Patients with a known history of iron allergy or hypersensitivity;

    4. Patients taking other oral or intravenous iron products;

    5. Patients with haemosiderin deposition or haemochromatosis;

    6. Pregnant or lactating women;

    7. Any other patient that the investigator deems inappropriate for enrolment.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 The First Affiliated Hospital of Nanjing Medical University Nanjing Jiangsu China 210029

    Sponsors and Collaborators

    • The First Affiliated Hospital with Nanjing Medical University
    • Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

    Investigators

    • Principal Investigator: Chunjian Li, MD, PhD, The First Affiliated Hospital with Nanjing Medical University

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Chunjian Li, Dr., MD, PhD, Deputy Director, Department of Cardiology; Director, Coronary Care Unit, The First Affiliated Hospital with Nanjing Medical University
    ClinicalTrials.gov Identifier:
    NCT06146751
    Other Study ID Numbers:
    • 024
    First Posted:
    Nov 27, 2023
    Last Update Posted:
    Nov 27, 2023
    Last Verified:
    Nov 1, 2023
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Chunjian Li, Dr., MD, PhD, Deputy Director, Department of Cardiology; Director, Coronary Care Unit, The First Affiliated Hospital with Nanjing Medical University
    ferumoxytol
    ultrasmall superparamagnetic iron oxide particles
    contrast-enhanced magnetic resonance
    thrombosis
    ventricular aneurysm
    Additional relevant MeSH terms:
    Aneurysm
    Heart Aneurysm
    Ferrosoferric Oxide

    Study Results

    No Results Posted as of Nov 27, 2023