MAUDE Adverse Event Report: W. L. GORE & ASSOCIATES, INC. GORE® TAG® CONFORMABLE THORACIC STENT GRAFT WITH ACTIVE CONTROL SYSTEM; SYSTEM, ENDOVASCULAR GRAFT, AORTIC ANEURYSM TREATMENT

Catalog Number	TGMR404015
Medical Device Problem Code	Device Endoleak (4074)
Health Effect - Clinical Code	Clinical Endoleak (4843)
Date of Event	04/16/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
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.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.
Event or Problem Description
The patient referenced in this event file is enrolled in the tgr 23-02 clinical study: on (b)(6) 2024, a patient was treated for a thoracic aortic dissection and type 1a endoleak using gore® tag® conformable thoracic stent graft with active control system (ctag) and gore® tag® thoracic branch endoprosthesis (tbe).On (b)(6) 2026, a patient was treated for a reintervention of a type 1a endoleak on the tbe, as well as a type iii endoleak between the tbe and the ctag from june 2024.The patient tolerated the procedure.

• Brand Name: GORE® TAG® CONFORMABLE THORACIC STENT GRAFT WITH ACTIVE CONTROL SYSTEM
• 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: 25242288
• Report Number: 2017233-2026-07535
• Device Sequence Number: 9490068
• Product Code: MIH
• UDI-Device Identifier: 00733132646845
• UDI-Public: (01)00733132646845(17)270319
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P040043
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Study
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 05/21/2026

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: TGMR404015
• 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: 04/16/2026
• Initial Report FDA Received Date: 05/21/2026
• Date Device Manufactured: 03/20/2024
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: HYPERCHOLESTEROLEMIA MEDICATION (UNSPECIFIED), HYP
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Male
• Patient Weight: 89 KG
• Patient Ethnicity: Non Hispanic
• Patient Race: White