HVP A Prospective, Multicenter, Non-Blinded, Non-Randomized Study of the RelayPro Thoracic Stent-Graft in Subjects with an Acute, Complicated Type B Aortic Dissection

This clinical trial is a prospective, multicenter, non-blinded, non-randomized study designed to assess the RelayPro thoracic endografts in the treatment of acute, complicated type B aortic dissection. The primary endpoint will measure all-cause mortality at 30 days post-procedure.

Key Inclusion Criteria:

1. Subject must have an acute (symptom onset to diagnosis within 2 weeks)or subacute, complicated type B aortic dissection (entire dissection is distal to the left subclavian artery (LSA)), confirmed by Computed Tomography Angiography (CTA) or Magnetic Resonance Angiogram (MRA), with time from symptom onset to diagnosis ≤ 6 weeks, with at least one of the following:

-Malperfusion of the viscera, kidneys, spinal cord, or lower extremities, measured by clinical or radiographic evidence;
-Intractable pain.
2. Proximal and distal aortic neck with diameter between 19 mm and 42 mm.
3. Subject's anatomy must meet all the following anatomical criteria:

Proximal attachment zone distal to the left common carotid and a distal attachment zone proximal to the origin of the celiac artery. (Dissection is permitted in the distal attachment zone but is not permitted in the proximal attachment zone.)
The length of the attachment zones will depend on the intended stent-graft diameter and type of graft selected.
The proximal attachment zone should be 15 mm for 22 - 28 mm RelayPro grafts with bare stent (20 mm for RelayPro grafts with non-bare stent), 20 mm for 30 - 46 mm RelayPro grafts with bare stent (25 mm for RelayPro grafts with non-bare stent), and proximal to non-dissected segment (healthy zone).
The distal attachment zone should be 20 mm for all RelayPro grafts.
Coverage of the left subclavian artery is permitted with mandatory revascularization if patent left internal mammary artery (LIMA) bypass or left upper extremity (LUE) arteriovenous graft or anomalous vertebral artery off the aorta. Revascularization must be performed prior to device placement, and may occur during implant procedure, provided it is before coverage of the LSA by the endograft.

**Other protocol-defined inclusion/exclusion criteria may apply. Please click on the NCT Number (below) to learn more about the study at clinicaltrials.gov.**
Heart and Vascular
Brant Ullery, M.D.
Bolton Medical, Inc.
Michelle Dixon
  • Providence Portland Medical Center