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

Catalog Number 07248563190

Device Problems False Positive Result (1227); Incorrect, Inadequate or Imprecise Result or Readings (1535); Output Problem (3005)

Patient Problems Solid Tumour (4552); No Clinical Signs, Symptoms or Conditions (4582)

Event Date 09/03/2021

Event Type  malfunction  

Manufacturer Narrative

Facility name truncated due to character limit : (b)(6).The q787q mutation is a single nucleotide polymorphism (snp), which does not interfere with the ex20ins mutations detected by the cobas egfr mutation test v2 and therefore, should not cause false-positive or false-negative results.Based on the available data and information provided, it has been determined that the result generated with the cobas egfr mutation test v2 was a false-positive ex20ins result.Roche received complaints from customers reporting the generation of false mutation detected results for the exon 20 insertion (ex20ins) mutation when using the cobas® egfr mutation test v2.During in-house testing using customer-provided ffpet samples, an ex20ins false mutation detected result was reproduced for one out of 8 ffpet samples, which was processed following the validated sample preparation method from the instructions for use.Although the majority of cases reported were from users using ffpet samples, the generation of false mutation detected ex20ins results with plasma specimens was reported in one case.A false mutation detected ex20ins result could lead to harm under specific scenarios.Consignees will be notified of the issue with instruction to follow the instructions for use for sample input requirements.Additionally, if an ex20ins mutation detected result is generated with the cobas® egfr mutation test v2, customers must confirm the result with another method (e.G., sequencing or other pcr-based tests).(b)(4).

Event Description

A customer from (b)(6) alleged a patient sample generated discrepant results for ex20ins when tested with the cobas egfr mutation test v2 compared to next generation sequencing (ngs).On (b)(6) 2021 a tissue sample generated a mutation detected result for ex20ins in the initial test with the cobas egfr mutation test v2.To confirm the result, the same sample was retested with ngs on the nextseq platform (illumina), and detected a synonymous variant p.Q787q.No harm was alleged.An investigation was conducted to evaluate the customer issue.

• Brand Name: COBAS EGFR MUTATION TEST V2
• Type of Device: SOMATIC GENE MUTATION DETECTION SYSTEM
• Manufacturer (Section D): ROCHE MOLECULAR SYSTEMS, INC. - BRANCHBURG; 1080 us highway 202 south; branchburg NJ 08876
• MDR Report Key: 12737788
• MDR Text Key: 281861847
• Report Number: 2243471-2021-03608
• Device Sequence Number: 1
• Product Code: OWD
• UDI-Device Identifier: 00875197005448
• UDI-Public: 00875197005448
• Combination Product (y/n): N
• PMA/PMN Number: P150047
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional
• Remedial Action: Recall
• Type of Report: Initial
• Report Date: 11/02/2021

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
• Device Operator: Health Professional
• Device Expiration Date: 12/31/2022
• Device Catalogue Number: 07248563190
• Device Lot Number: G32996
• Initial Date Manufacturer Received: 10/05/2021
• Initial Date FDA Received: 11/02/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Removal/Correction Number: 2243471-08-24-2021-003-C
• Patient Sequence Number: 1