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

Catalog Number	06656021190
Medical Device Problem Code	Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/30/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The analyzer serial number is (b)(6).The investigation is ongoing.
Event or Problem Description
There was an allegation of questionable elecsys estradiol iii assay results for 1 patient serum sample on a cobas e 411 analyzer.The initial estradiol result was >3000 pg/ml with flag.A 1:10 dilution was made from the sample and the result was 2211 pg/ml.The initial result was deemed correct.No questionable results were reported outside of the laboratory.
Additional Manufacturer Narrative
The qc recovery data provided was acceptable.The alarm trace did not contain a conspicuous event.The field applications specialist (fas) determined that the event was caused by assay dilution.The customer reran the undiluted patient sample and obtained a result within the analytical measuring range.The customer did not report any other issues.The investigation determined that the field applications specialist's actions resolved the issue.The investigation did not identify a product problem.

• 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: 22848872
• Report Number: 1823260-2025-02553
• Device Sequence Number: 14543442
• Product Code: CHP
• UDI-Device Identifier: 04015630933358
• UDI-Public: 04015630933358
• Combination Product (Y/N): N
• Initial Reporter State: TX
• Initial Reporter Country: US
• 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: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 09/16/2025

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 Expiration Date: 01/31/2026
• Device Catalogue Number: 06656021190
• Device Lot Number: 84459400
• 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: 07/30/2025
• Supplement Date Received by Manufacturer: 08/25/2025
• Initial Report FDA Received Date: 08/20/2025
• Supplement Report FDA Received Date: 09/16/2025
• 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: Female