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

Catalog Number	06656021190
Medical Device Problem Codes	Low Test Results (2458); Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	11/20/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The analyzer's serial number is (b)(6).The calibration and qc were acceptable.The field service representative adjusted the sipper probe, performed checks, cleaned the water tank, and replaced the procell and cleancell bottles.He cleaned the sipper, probes, the mixer, and the rinse stations.He performed primes, a measuring cell preparation, and cleaned the liquid flow path.The investigation is ongoing.
Event or Problem Description
There was an allegation of questionable elecsys estradiol iii assay results for 1 patient sample on a cobas e 411 analyzer (rack system).The initial result was 22.52 pg/ml.The repeated result was 63.23 pg/ml.This result was believed to be correct.The customer cleaned the liquid flow path and repeated the sample.The result was 19.20 pg/ml.
Additional Manufacturer Narrative
The investigation determined the issue was due to the incorrect execution of customer maintenance.

• 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: 23805953
• Report Number: 1823260-2025-05110
• Device Sequence Number: 7686186
• Product Code: CHP
• UDI-Device Identifier: 04015630933358
• UDI-Public: 04015630933358
• Combination Product (Y/N): N
• Initial Reporter Country: EG
• 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): 01/21/2026

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 Expiration Date: 01/31/2026
• Device Catalogue Number: 06656021190
• Device Lot Number: 844594
• 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: 11/20/2025
• Supplement Date Received by Manufacturer: 12/29/2025
• Initial Report FDA Received Date: 12/15/2025
• Supplement Report FDA Received Date: 01/21/2026
• 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