Marfan syndrome
MONDO:0007947A disorder of the connective tissue. Connective tissue provides strength and flexibility to structures throughout the body such as bones, ligaments, muscles, walls of blood vessels, and heart valves. Marfan syndrome affects most organs and tissues, especially the skeleton, lungs, eyes, heart, and the large blood vessel that distributes blood from the heart to the rest of the body (the aorta). It is caused by mutations in the FBN1 gene, which provides instructions for making a protein called fibrillin-1. Marfan syndrome is inherited in an autosomal dominant pattern. At least 25% of cases are due to a new (de novo) mutation. Treatment is based on the signs and symptoms in each person.
Also known as: MFS, MFS1, Marfan syndrome, Marfan syndrome type 1, Marfan syndrome, type 1, Marfan's syndrome
20 clinical trials for this condition and its sub-types.
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Broader categories
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Could a High-Fat diet prevent aortic surgery in marfan patients?
Disease control Not yet recruitingThis 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…
Phase: NA • Sponsor: Washington University School of Medicine • Aim: Disease control
Last updated Jun 27, 2026 12:01 UTC
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What keeps marfan patients from exercising? new study aims to find out
Knowledge-focused Not yet recruitingThis study will look at 118 adults with Marfan syndrome to understand why they may not be physically active. Researchers will measure factors like fear of movement, fatigue, pain, and heart health. The goal is to identify what predicts low activity levels, which could help improv…
Sponsor: University of Oviedo • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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Researchers to examine bone density in rare genetic disorders
Knowledge-focused Not yet recruitingThis study will review medical records of 150 people with Marfan syndrome or Ehlers-Danlos syndrome to understand bone mineralization and fracture risk. Researchers will look at past bone density scans and health data to see how bone health changes over time. The goal is to learn…
Sponsor: IRCCS Policlinico S. Donato • Aim: Knowledge-focused
Last updated Jun 26, 2026 15:44 UTC