GORE VIABAHN Endoprosthesis Versus Percutaneous Transluminal Angioplasty (PTA) to Revise AV Grafts in Hemodialysis

The primary effectiveness hypothesis is to demonstrate that the GORE VIABAHN® Endoprosthesis
with PROPATEN Bioactive Surface will extend the period of target lesion primary patency as
compared to PTA.

The primary safety hypothesis is to demonstrate that the proportion of subjects remaining
free from major device, procedure, and treatment site-related adverse events through 30 days
post-procedure in the GORE® VIABAHN® Device group is not inferior to that of the PTA group.

Inclusion Criteria:

- Hemodialysis patient with a dysfunctional or thrombosed forearm or upper arm
prosthetic vascular access graft.

- The target lesion starts less than or equal to 30 mm from the venous anastomosis.

- The target lesion has > 50% stenosis as measured per protocol.

- The patient has a maximum of one secondary stenosis.

Exclusion Criteria:

- The age of the hemodialysis access graft is less than or equal to 30 days old from the
date of the study procedure.

- The patient has undergone an intervention (surgical or percutaneous) of the vascular
access circuit less than or equal to 30 days from the date of the study procedure.

- The secondary lesion is an occlusion.