MAUDE Adverse Event Report: W. L. GORE & ASSOCIATES, INC. GORE® TAG® THORACIC BRANCH ENDOPROSTHESIS; SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT

Catalog Number	TAC084015A
Medical Device Problem Code	Device Endoleak (4074)
Health Effect - Clinical Code	Clinical Endoleak (4843)
Date of Event	12/09/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
H.6.Investigation findings code c21: conclusions pending results of product history review.W.L.Gore & associates, inc.(gore) is submitting this report to comply with 21 c.F.R.Part 803, the medical device reporting regulation.This report is based upon information obtained by gore, which the company may not have been able to fully investigate or verify prior to the date the report was required by the fda.Blank fields present on this report include required fields and fields determined to be not applicable.Blank required fields indicate that the information was not provided, was deemed unavailable or was not applicable.This report does not constitute an admission or a conclusion by fda, gore, or its associates that the device, gore or its associates caused or contributed to the event described in the report.In particular, this report does not constitute a legal admission by anyone that the product described in this report has any defects or has malfunctioned, as defined from a legal standpoint.These words are included in the report and are fixed items for selection created by the fda, to categorize the type of event solely for the purpose of reporting pursuant to part 803.This statement should be included with any information or report disclosed to the public under the freedom of information act.
Event or Problem Description
The following was reported to gore: on (b)(6) 2025 a patient was treated for a dissection using a gore® tag® thoracic branch endoprosthesis.On (b)(6) 2025, the patient was treated for a dissection using a gore® excluder® thoracoabdominal branch endoprosthesis (tambe) system, including gore® viabahn® vbx balloon expandable endoprosthesis devices.On follow-up ct, the physician noted a proximal endoleak on the tbe device.On (b)(6) 2025, a reintervention occurred.A tbe extender was placed proximally of the tbe device.
Additional Manufacturer Narrative
Updated h.6.Type of investigation from b21 to b13,b14,b20, b22.Updated h.6.Investigation findings from c21 to c19, c20.Updated h.6.Investigation conclusions from d16 to d12, d15.H.6.Type of investigation code b20: the device remains implanted and is not available for analysis.H.6.Investigation findings code c19: a review of the manufacturing records for the device verified that the lot met all pre-release specifications.H.6.Investigation conclusions code d15: there is insufficient information available for gore to reasonably draw conclusions related to aspects of the event, therefore conclusion code ¿d15: cause not established¿ is being used.Insufficient information may include limited or missing relevant medical records, involvement of multiple implanted devices (including non-gore devices) in the field of treatment, patient non-compliance, and/or a general lack of available detail or specificity related to an adverse event and/or device.

• Brand Name: GORE® TAG® THORACIC BRANCH ENDOPROSTHESIS
• Common Device Name: SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT
• Manufacturer (Section D): W. L. GORE & ASSOCIATES, INC.; 1505 n. fourth street; flagstaff AZ 86004
• Manufacturer (Section G): MEDICAL WOODY SPRINGS B/P; 3450 w. kiltie lane; flagstaff AZ 86005
• Manufacturer Contact: bryce wargin ; 1505 n. fourth street; flagstaff, AZ 86004 ; 9285263030
• MDR Report Key: 23949699
• Report Number: 2017233-2026-07008
• Device Sequence Number: 21503724
• Product Code: MIH
• UDI-Device Identifier: 00733132654130
• UDI-Public: (01)00733132654130(17)280221
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: P210032
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 03/04/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Catalogue Number: TAC084015A
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 12/09/2025
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 01/02/2026
• Supplement Report FDA Received Date: 03/04/2026
• Date Device Manufactured: 02/22/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 53 YR
• Patient Sex: Male