A Randomized Open-label LOSARTAN Therapy on the Progression of Aortic Root Dilation in Patients With Marfan Syndrome

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    National Taiwan University Hospital
Updated on 7 November 2020


To assess the efficacy of angiotensin II receptor blocker, Losartan, to prevent progressive dilation of aortic root in patients with Marfan syndrome.


Marfan syndrome (MFS) is a multisystem connective tissue disorder of autosomal dominant inheritance1. The cardinal features are noted in the cardiovascular, ocular, and skeletal system. The most life-threatening complication of MFS is progressive aortic root dilation leading to aortic dissection or rupture. Losartan, an angiotensin II type I receptor (AT1) antagonist, is a drug already in clinical use for hypertension and type II diabetic nephropathy. A recent study showed that Losartan prevents aortic root dilation and lung problem in a mouse model of MFS. Therefore, the goals of this clinical trial are to examine the efficacy and safety of Losartan in patients with Marfan syndrome for aortic root dilation prevention.

Condition Marfan's Syndrome
Treatment Losartan and Atenolol or Propranolol, Atenolol or Propranolol
Clinical Study IdentifierNCT00651235
SponsorNational Taiwan University Hospital
Last Modified on7 November 2020


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