MAUDE Adverse Event Report: ROCHE DIAGNOSTICS ELECSYS ESTRADIOL III ASSAY; RADIOIMMUNOASSY, ESTRADIOL

Catalog Number	06656021190
Medical Device Problem Codes	High Test Results (2457); Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	10/24/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The estradiol reagent expiration date was not provided.The cobas e411 rack system serial number was (b)(6).Calibration and qc were acceptable.The investigation is ongoing.
Event or Problem Description
We received an allegation about discrepant results for 1 patient sample tested with elecsys estradiol iii assay on a cobas e411 immunoassay analyzer (rack system).The initial result was 560 ng/l.The physician questioned the initial result as it did not match the patient's clinical picture.The sample was then repeated on (b)(6) 2025, and the repeat result was 86.94 ng/l.The repeat result was accepted by the physician.
Additional Manufacturer Narrative
A general reagent or analyzer problem can be excluded as the qc was within ranges and no further issues were reported.The investigation did not identify a product problem.The cause of the event could not be determined.

• Brand Name: ELECSYS ESTRADIOL III ASSAY
• Common Device Name: RADIOIMMUNOASSY, ESTRADIOL
• 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: 23602924
• Report Number: 1823260-2025-04732
• Device Sequence Number: 21311660
• Product Code: CHP
• UDI-Device Identifier: 04015630933358
• UDI-Public: 04015630933358
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K965109
• 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): 12/12/2025

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: 06656021190
• Device Lot Number: 880868
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 10/27/2025
• Supplement Date Received by Manufacturer: 11/26/2025
• Initial Report FDA Received Date: 11/20/2025
• Supplement Report FDA Received Date: 12/12/2025
• 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