MAUDE Adverse Event Report: ROCHE DIAGNOSTICS TINA-QUANT HEMOGLOBIN A1CDX GEN.3; GLYCOSYLATED HEMOGLOBIN ASSAY

Catalog Number	07559674190
Medical Device Problem Code	Non Reproducible Results (4029)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/03/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The serial number of the c 513 analyzer used to repeat the samples is (b)(6).The investigation is ongoing.
Event or Problem Description
The initial reporter stated they received discrepant results for five patient samples tested with tina-quant hemoglobin a1cdx gen.3.The samples were initially measured on unknown roche analyzers and the samples were repeated on a cobas c513 analyzer commercial system.The samples were being repeated as part of a correlation study.Values from the samples were reported outside of the laboratory.It is unknown which values are considered correct.The first sample initially resulted in an hba1c value of 6.7 % and it repeated as 6.1 %.The second sample initially resulted in an hba1c value of 7.67 % and it repeated as 7.0 %.The third sample initially resulted in an hba1c value of 13.84 % and it repeated as 12.7 %.The fourth sample initially resulted in an hba1c value of 7.47 % on (b)(6) 2025 and it repeated as 6.9 %.The fifth sample initially resulted in an hba1c value of 5.81 % on (b)(6) 2025 and it repeated as 5.2 %.
Additional Manufacturer Narrative
The investigation could not identify a product problem.The cause of the event could not be determined.

• Brand Name: TINA-QUANT HEMOGLOBIN A1CDX GEN.3
• Common Device Name: GLYCOSYLATED HEMOGLOBIN ASSAY
• 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: 22078873
• Report Number: 1823260-2025-01588
• Device Sequence Number: 18242139
• Product Code: PDJ
• UDI-Device Identifier: 04015630942787
• UDI-Public: 04015630942787
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K160571
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 06/12/2025

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: 07559674190
• Device Lot Number: ASKU
• Was Device Available for Evaluation?: Yes
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 05/05/2025
• Supplement Date Received by Manufacturer: 06/11/2025
• Initial Report FDA Received Date: 05/23/2025
• Supplement Report FDA Received Date: 06/12/2025
• 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 Age: 68 YR
• Patient Sex: Female