MAUDE Adverse Event Report: ROCHE MOLECULAR SYSTEMS, INC. - BRANCHBURG COBAS® HIV-1 (192T); HUMAN IMMUNODEFICIENCY VIRUS (HIV) VIRAL LOAD MONITORING TEST

Catalog Number	09040803190
Medical Device Problem Codes	False Positive Result (1227); High Test Results (2457)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/07/2025
Type of Reportable Event	Malfunction
Event or Problem Description
There was an allegation of questionable false-positive cobas® hiv-1 (192t) results from the cobas 8800.Three patient test samples resulted as positive for hiv.These samples were later tested on december 09, 2025.Two of the samples resulted as "target not detected".One sample result was "titer min".The repeat results were reported outside of the laboratory.
Additional Manufacturer Narrative
The cobas 8800 serial number was (b)(6).The investigation is ongoing.
Additional Manufacturer Narrative
The investigation determined the issue was due to pre-analytical handling issues at the customer site.Correct pre-analytic sample handling is within the customer's responsibility.There is no evidence to suggest a malfunction of the device.

• Brand Name: COBAS® HIV-1 (192T)
• Common Device Name: HUMAN IMMUNODEFICIENCY VIRUS (HIV) VIRAL LOAD MONITORING TEST
• Manufacturer (Section D): ROCHE MOLECULAR SYSTEMS, INC. - BRANCHBURG; 1080 us highway 202 south; branchburg NJ 08876
• Manufacturer (Section G): ROCHE MOLECULAR SYSTEMS, INC. - BRANCHBURG; 1080 us highway 202 south; branchburg NJ 08876
• Manufacturer Contact: natalie catton ; 9115 hague road; indianapolis, IN 46250 ; 9253534412
• MDR Report Key: 23972002
• Report Number: 2243471-2026-00049
• Device Sequence Number: 9295588
• Product Code: MZF
• UDI-Device Identifier: 00875197006407
• UDI-Public: 00875197006407
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: BP150262
• 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): 01/09/2026

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: 09/30/2026
• Device Catalogue Number: 09040803190
• Device Lot Number: M23842
• 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: 12/09/2025
• Supplement Date Received by Manufacturer: 01/07/2026
• Initial Report FDA Received Date: 01/06/2026
• Supplement Report FDA Received Date: 01/09/2026
• 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