Ferumoxytol-enhanced Magnetic Resonance Venography in Patients With Venous Diseases
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Ferumoxytol injection.
- Who it may be relevant to
- Registry conditions: Venous Diseases. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
A Single-center, Evaluator-blinded Clinical Study of Polysaccharide Superparamagnetic Iron Oxide Injection for Magnetic Resonance Venography in Patients With Venous System Diseases
Overview
The purpose of this single-center, prospective, evaluator-blinded study is to establish and optimize the imaging protocol for ferumoxytol-enhanced magnetic resonance venography (Fe-MRV) in patients with venous system diseases. Current gadolinium-based contrast agents used in MRI have limitations, including short circulation half-lives and potential risks for patients with renal impairment. Ferumoxytol, a superparamagnetic iron oxide nanoparticle, offers a longer imaging window and no renal toxicity, making it a promising alternative for vascular imaging. This study will enroll 50 adult patients with suspected or confirmed venous structural abnormalities or circulation disorders. To determine the minimum effective diagnostic dose, each participant will receive a total dose of 3.0 mg/kg, administered as four equal intravenous aliquots, with MRI performed after each aliquot (cumulative doses: 0.75, 1.50, 2.25, and 3.0 mg/kg). Independent, blinded radiologists will evaluate the image quality at each cumulative dose level to determine the lowest possible dose required to achieve successful clinical diagnosis.
Interventions
- Drug Ferumoxytol injection
Ferumoxytol is a superparamagnetic iron oxide nanoparticle contrast agent. It is administered intravenously at a total dose of 3.0 mg/kg, divided into four equal consecutive aliquots (0.75 mg/kg each).
Primary outcome measures
- Overall Diagnostic Success Rate [Time frame: Up to 2 days post-intervention]
Secondary outcome measures (2)
- Signal-to-Noise Ratio (SNR) Assessed by Ferumoxytol-enhanced Magnetic Resonance Venography [Time frame: Up to 2 days post-intervention]
- Contrast-to-Noise Ratio (CNR) Assessed by Ferumoxytol-enhanced Magnetic Resonance Venography [Time frame: Up to 2 days post-intervention]
Eligibility criteria
Inclusion criteria
- Age >= 18 years.
- Suspected or preliminarily diagnosed venous structural abnormalities (e.g., lower-extremity veins, central veins) or venous circulation disorders requiring Fe-MRV evaluation.
- Able and willing to provide written informed consent.
Exclusion criteria
- History of allergy/hypersensitivity to iron or dextran, or known allergy-prone constitution.
- Currently receiving other oral or intravenous iron products.
- Hemosiderosis or hemochromatosis.
- Prior hypersensitivity reaction to intravenous iron products, or any condition associated with iron overload.
- Unable to undergo MRI for psychological reasons (e.g., claustrophobia) or physical reasons (e.g., non-MRI-compatible metallic implants/foreign bodies).
- End-stage disease or life expectancy < 1 year.
- Pregnant women.
- Any other condition judged by the investigator to make the participant unsuitable for the study.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- N/A
- Model
- Single group
- Masking
- Open label
- Primary purpose
- Diagnostic
Study locations
China · 1 center
- The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School — Nanjing
Publications
- Stoumpos S, Hennessy M, Vesey AT, Radjenovic A, Kasthuri R, Kingsmore DB, Mark PB, Roditi G. Ferumoxytol magnetic resonance angiography: a dose-finding study in patients with chronic kidney disease. Eur Radiol. 2019 Jul;29(7):3543-3552. doi: 10.1007/s00330-019-06137-4. Epub 2019 Mar 27. PMID 30919067
- Liu Y, Cao B, Wang X, Zhong J, Li Z, Peng R, Zhao D, Gu N, Yang Q. Ferumoxytol-enhanced MR venography for mapping lower-extremity venous networks and evaluating varicose veins in patients with diabetes. Eur Radiol. 2024 Nov;34(11):7197-7207. doi: 10.1007/s00330-024-10772-x. Epub 2024 May 7. PMID 38713277
- Shahrouki P, Khan SN, Yoshida T, Iskander PJ, Ghahremani S, Finn JP. High-resolution three-dimensional contrast-enhanced magnetic resonance venography in children: comparison of gadofosveset trisodium with ferumoxytol. Pediatr Radiol. 2022 Mar;52(3):501-512. doi: 10.1007/s00247-021-05225-2. Epub 2021 Dec 22. PMID 34936018
- Gallo CJR, Mammarappallil JG, Johnson DY, Chalian H, Ronald J, Bashir MR, Kim CY. Ferumoxytol-enhanced MR Venography of the Central Veins of the Thorax for the Evaluation of Stenosis and Occlusion in Patients with Renal Impairment. Radiol Cardiothorac Imaging. 2020 Nov 19;2(6):e200339. doi: 10.1148/ryct.2020200339. eCollection 2020 Dec. PMID 33778639
- Bashir MR, Mody R, Neville A, Javan R, Seaman D, Kim CY, Gupta RT, Jaffe TA. Retrospective assessment of the utility of an iron-based agent for contrast-enhanced magnetic resonance venography in patients with endstage renal diseases. J Magn Reson Imaging. 2014 Jul;40(1):113-8. doi: 10.1002/jmri.24330. Epub 2013 Oct 15. PMID 24130008
Identifiers
NCT: NCT07452250 · 2025-0616-02