MAUDE Adverse Event Report: ROCHE MOLECULAR SYSTEMS, INC. - BRANCHBURG COBAS® EGFR MUTATION TEST V2 P150044; SOMATIC GENE MUTATION DETECTION SYSTEM

Catalog Number	07248563190
Medical Device Problem Codes	False Positive Result (1227); Incorrect, Inadequate or Imprecise Result or Readings (1535); Output Problem (3005)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/25/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The serial number of the analyzer is (b)(6).The investigation is ongoing.
Event or Problem Description
There was an allegation of questionable cobas® egfr mutation test v2 assay results for a patient sample tested on the cobas z 480 analyzer.The initial result was exon20 insertion mutation detected.The repeat result was no mutation detected.The sample was tested using the next generation sequencing (ngs) and the result was negative for exon20.

• Brand Name: COBAS® EGFR MUTATION TEST V2 P150044
• Common Device Name: SOMATIC GENE MUTATION DETECTION SYSTEM
• 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: 24888204
• Report Number: 2243471-2026-01434
• Device Sequence Number: 10419935
• Product Code: OWD
• UDI-Device Identifier: 00875197005448
• UDI-Public: 00875197005448
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: P150044
• 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
• Remedial Action: Recall,Notification
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 06/18/2026

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 Catalogue Number: 07248563190
• Device Lot Number: M25692
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 03/25/2026
• Supplement Date Received by Manufacturer: 04/28/2026; 06/01/2026
• Initial Report FDA Received Date: 04/15/2026
• Supplement Report FDA Received Date: 05/22/2026; 06/18/2026
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: Z-0083-2022 RES88607
• Patient Sequence Number: 1
• Patient Sex: Unknown