 The STARZ-TX2 trial Study of Thoracic Aortic Aneurysm Repair with the Zenith TX2R TAA Thoracic Aortic Aneurysm Endovascular Graft is a clinical trial approved by the United States Food and Drug Administration FDA to study the safety and effectiveness of the Zenith TX2 TAA Endovascular Graft in the treatment of thoracic aortic aneurysms ulcers. 