MAUDE Adverse Event Report: ROCHE DIAGNOSTICS ELECSYS TOXO IGG; ENZYME LINKED IMMUNOABSORBENT ASSAY, TOXOPLASMA GONDII

Catalog Number	07028008190
Medical Device Problem Code	False Negative Result (1225)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/16/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The serial number of the cobas e 801 analytical unit is (b)(6).The investigation is ongoing.
Event or Problem Description
The initial reporter received questionable elecsys toxo igg results from one patient sample tested on the cobas e 801 analytical unit.The toxo igg result was 0.19 iu/ml (negative).The physician stated that the result did not match the patient's clinical history; a positive result was expected.
Additional Manufacturer Narrative
The calibration and qc data from the laboratory management software were acceptable.The investigation determined the event was consistent with a sample-specific discrepancy.The investigation did not identify a product problem.

• Brand Name: ELECSYS TOXO IGG
• Common Device Name: ENZYME LINKED IMMUNOABSORBENT ASSAY, TOXOPLASMA GONDII
• 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: amy nelson ; 9115 hague road; indianapolis, IN 46250
• MDR Report Key: 21363528
• Report Number: 1823260-2025-00414
• Device Sequence Number: 20936594
• Product Code: LGD
• UDI-Device Identifier: 04015630940301
• UDI-Public: 04015630940301
• Combination Product (Y/N): N
• Initial Reporter Country: CO
• PMA/510(K) Number: K073501
• 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): 03/11/2025

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: 11/30/2025
• Device Catalogue Number: 07028008190
• Device Lot Number: 78702701
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/23/2025
• Supplement Date Received by Manufacturer: 02/28/2025
• Initial Report FDA Received Date: 02/12/2025
• Supplement Report FDA Received Date: 03/11/2025
• 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