Could a High-Fat diet prevent aortic surgery in marfan patients?
NCT ID NCT07495267
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tests whether a carefully supervised ketogenic diet can help people with Marfan syndrome who have a chronic aortic dissection avoid surgery for one year. Fifteen adults aged 18-50 will follow the diet with guidance from a dietitian, measure their blood ketones at home, and have regular blood tests and CT scans. The study aims to see if the diet reduces inflammation and stabilizes the aorta, compared to historical data.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 50 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Adults between 18 and 50 years old. 2. Ability to understand and willingness to sign an Institutional Review Board (IRB) approved written informed consent document. 3. Genetically or clinically confirmed Marfan syndrome 4. Chronic descending thoracic aortic dissection present for at least three months 5. Maximal descending thoracic aortic diameter must measure between 4.0 and 5.0 cm at baseline on contrast-enhanced computed tomography angiography (CTA) 6. Have been clinically stable and consistent antihypertensive regimen for at least four weeks Exclusion Criteria: 1. Acute or rapidly enlarging dissection (\>0.5 cm increase over the preceding three months) 2. Prior descending thoracic aortic repair or endograft placement 3. Advanced renal or hepatic dysfunction 4. Poorly controlled diabetes requiring insulin 5. Active malignancy, pregnancy, or other metabolic or nutritional disorders that would contraindicate ketogenic therapy 6. Body mass index below 18 kg/m² 7. Inability to comply with dietary restrictions or follow-up imaging 8. Current enrollment in another interventional study, which in the opinion of the principal investigator, may confound study results. 9. Patients who, in the opinion of the principal investigator, are not suitable candidates for study participation.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
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The official record
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A doctor treating you
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