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

Catalog Number	08496609190
Medical Device Problem Code	Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/30/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The cobas e411 disk serial number was (b)(6).The investigation is ongoing.
Event or Problem Description
We received an allegation about discrepant results for 1 patient sample tested with elecsys anti-tshr assay on a cobas e 411 analyzer (disk system).The initial result was 2.4 iu/l.The 1st repeat result was 2.5 iu/l.The customer's results were interpreted as positive for anti-tshr; the patient does not have graves¿ disease-like symptoms.The sample was sent to an outsourced laboratory and repeated on a cobas e 801 analyzer.The 2nd repeat result was 1.4 iu/l and interpreted as negative for anti-tshr.
Additional Manufacturer Narrative
Based on the information provided, the event was consistent with a preanalytic issue at the customer site.Preanalytics are within the customer's responsibility.There was no indication of a device malfunction.

• Brand Name: ELECSYS ANTI-TSHR
• Common Device Name: THYROID AUTOANTIBODY IMMUNOLOGICAL TEST SYSTEM
• 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: 24434269
• Report Number: 1823260-2026-00663
• Device Sequence Number: 10244601
• Product Code: JZO
• UDI-Device Identifier: 07613336160305
• UDI-Public: 07613336160305
• 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): 04/02/2026

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: 08496609190
• Device Lot Number: 90687201
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/30/2026
• Supplement Date Received by Manufacturer: 03/12/2026
• Initial Report FDA Received Date: 02/24/2026
• Supplement Report FDA Received Date: 04/02/2026
• 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