Study to Evaluate the Clinical Performance of the Valiant Thoracic Stent Graft With the Captivia Delivery System (Valiant Captivia) for the Treatment of Acute, Complicated Type B Aortic Dissections

Completed · Not applicable

Conditions studied: Aortic Dissection

In brief

The purpose of this study is to determine if the Valiant stent graft is safe and effective in treating patients who have a thoracic dissection. A thoracic dissection is a tear in the wall of the aorta, that causes blood to flow between the layers of the aorta and force the layers apart (dissect). This condition is a medical emergency and can quickly lead to death. Since stent grafting has been an effective way to treat other aortic conditions such as aneurysms (bulge in aorta wall), it is believed that the device would be effective in treating dissections. Information will be collected on the performance of the device for 5 years.

Key facts

Study ID

NCT01114724

Run by

Medtronic Cardiovascular

People needed

50

Starts

2010-05-01

Expected to finish

2017-10-01

Last updated by the study team

2021-10-29

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Subject signed an informed consent.
• Subject is at least 18 years old.
• Subject has an acute, complicated Type B aortic dissection with evidence of at least one of the following:
• Malperfusion (visceral, renal, spinal cord and/or lower limb ischemia)
• Visceral ischemia measured by either radiographic or clinical evidence.
• Renal ischemia measured by either radiographic or clinical evidence.
• Spinal cord ischemia measured by either radiographic or clinical evidence.
• Lower limb ischemia measured by either radiographic or clinical evidence.
• Rupture - Measured by radiographic or clinical evidence.
• Subject is hemodynamically stable.
• Subject's anatomy must meet all of the following anatomical criteria:
• Proximal landing zone aortic diameter must be between 20 mm and 44 mm;
• Centerline distance from distal margin of left CCA or in cases of bovine anatomy, innominate artery, to start of most proximal tear must be ≥ 20 mm;
• Subject has patent iliac or femoral arteries or can tolerate an iliac conduit that allows endovascular access to the dissection site with the delivery system of the appropriate sized device.
• Thoracic aortic dissection is confirmed, at a minimum, by diagnostic contrast-enhanced computerized tomography angiogram (CTA) with 3-D reconstruction, and/or contrast enhanced magnetic resonance angiogram (MRA) obtained prior to the implant procedure.

You may not qualify if…

• Planned placement of the COVERED portion of the stent graft over the left carotid artery, or the celiac trunk.
• Subject has systemic infection.
• Subject is pregnant.
• Subject has received a previous stent or stent graft or previous surgical repair in the DTA.
• Subject has had a cerebral vascular accident (CVA) within 2 months.
• Subject has a history of bleeding diathesis, coagulopathy, or refuses blood transfusion.
• Subject has a history of Marfan Syndrome or other connective tissue disorder.
• Subject is currently participating in an investigational drug or device clinical trial which would interfere with the endpoints and follow-ups of this study.
• Subject has a known allergy or intolerance to the device components.
• Subject has a known hypersensitivity or contraindication to anticoagulants or contrast media, which is not amenable to pre-treatment.
• Subject has a co-morbidity causing expected survival to be less than 1 year.

Where it is running

• USC Keck School of Medicine — Los Angeles, California, United States
• Cedars Sinai Medical Center — Los Angeles, California, United States
• Harbor UCLA — Torrance, California, United States
• Washington Hospital D.C. — Washington D.C., District of Columbia, United States
• University of Florida — Gainesville, Florida, United States
• Northwestern Memorial — Chicago, Illinois, United States
• University of Michigan — Ann Arbor, Michigan, United States
• New York Presbyterian Weill Cornell — New York, New York, United States
• Novant Health Heart and Vascular Institute — Charlotte, North Carolina, United States
• Duke University Medical Center — Durham, North Carolina, United States
• University of Pennsylvania — Philadelphia, Pennsylvania, United States
• Vanderbilt Medical Center — Nashville, Tennessee, United States
• Heart Hospital Medical Center — Dallas, Texas, United States
• Baylor — Houston, Texas, United States
• Memorial Hermann Heart and Vascular Institute — Houston, Texas, United States
• St. Luke's Episcopal Hospital — Houston, Texas, United States
• Virginia Commonwealth University MCV Richmond — Richmond, Virginia, United States

Full record on ClinicalTrials.gov

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