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Magnetic resonance imaging (MRI) for abdominal aortic aneurysms to predict rupture or surgery: the MA3RS trial

Magnetic Resonance Imaging using ultrasmall supermagnetic particles of iron oxide in patients under surveillance for abdominal aortic aneurysms to predict rupture or surgical repair

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN76413758
Enrollment
350
Registered
2013-03-04
Start date
2012-09-07
Completion date
Unknown
Last updated
2019-10-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abdominal Aortic Aneurysm Circulatory System Abdominal aortic aneurysm, ruptured

Interventions

All patients will have a full formal and standardized clinical assessment at the first study visit that will include history, examination, documentation of cardiovascular risk factor profile (smoking

Sponsors

University of Edinburgh / NHS Lothian (UK)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Abdominal aortic aneurysms measuring =40 mm in anteroposterior diameter on ultrasound scanning 2. Age =40 years. Patients with abdominal aortic aneurysms less than 40 years may have a connective tissue disorder and a different aetiology to their disease

Exclusion criteria

Exclusion criteria: 1. Patients expected to, or already received, imminent elective or emergency surgical or endovascular repair 2. Contraindication to magnetic resonance imaging scanning identified from magnetic resonance imaging safety questionnaire 3. Patients refusing or unable to give informed consent 4. Woman with child-bearing potential and who are breastfeeding will not be enrolled into the trial (woman who have experienced menarche, are pre-menopausal, have not been sterilised or who are currently pregnant) 5. Intercurrent illness including patients with a systemic inflammatory disorder or underlying malignancy (life expectancy < 2 years) 6. Renal dysfunction (eGFR =30 mL/min/1.73m2) 7. Polycythemia 8. Contraindication to ferumoxytol (evidence of known iron overload, hemochromatosis, known hypersensitivity to ferumoxytol or its components or anaemia not caused by iron deficiency) 9. Contraindication to Iodine

Design outcomes

Primary

MeasureTime frame
The composite of aneurysm rupture or aortic aneurysm repair

Secondary

MeasureTime frame
1. The rate of aneurysm rupture 2. The rate of surgical repair of the aneurysm 3. Aneurysm growth rate 4. All-cause and aneurysm-related mortality 5. We will conduct exploratory analyses examining the interactions between mural USPIO uptake, biomechanical stress, clinical risk factors and serum biomarkers of extracellular matrix turnover and inflammation. Clinicians involved directly with patient surveillance and care will be blinded to the magnetic resonance imaging findings of mural USPIO uptake.

Countries

United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Aug 14, 2026