MAUDE Adverse Event Report: ROCHE DIAGNOSTICS ELECSYS ANTI-TSHR; THYROID AUTOANTIBODY TEST

Catalog Number	08496633190
Medical Device Problem Code	High Test Results (2457)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/15/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The cobas pro ssu serial number was not provided.Sample material from the patient was requested for further investigation.The investigation is ongoing.
Event or Problem Description
There was an allegation of questionable thyroid results for one patient from the cobas pro ssu.Refer to the attachment to the medwatch for all patient data.This medwatch is for the elecsys anti-tshr assay.Refer to the medwatchs with a1 patient identifiers (b)(6) and (b)(6) for the other involved assays.
Additional Manufacturer Narrative
Testing of the provided patient sample revealed the presence of a streptavidin interfering factor, which caused the falsely elevated values.Per product labeling for the assay: in rare cases, interference due to extremely high titers of antibodies to analyte-specific antibodies, streptavidin or ruthenium can occur.These effects are minimized by suitable test design.For diagnostic purposes, the results should always be assessed in conjunction with the patient¿s medical history, clinical examination and other findings.

• Brand Name: ELECSYS ANTI-TSHR
• Common Device Name: THYROID AUTOANTIBODY TEST
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• Manufacturer (Section G): ROCHE DIAGNOSTICS GMBH; sandhofer strasse 116; mannheim (baden-wurttemberg) 68305 ; GM 68305
• Manufacturer Contact: natalie catton ; 9115 hague road; indianapolis, IN 46250
• MDR Report Key: 22962675
• Report Number: 1823260-2025-02729
• Device Sequence Number: 15554666
• Product Code: JZO
• UDI-Device Identifier: 07613336160329
• UDI-Public: 07613336160329
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K193313
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 03/17/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Catalogue Number: 08496633190
• Device Lot Number: ASKU
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 08/15/2025
• Supplement Date Received by Manufacturer: 02/24/2026
• Initial Report FDA Received Date: 09/04/2025
• Supplement Report FDA Received Date: 03/17/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Patient Sex: Unknown