The firm received customer complaints regarding false negative Influenza A (Flu A) results and late Flu A Target Ct values. A false negative influenza A result may lead to additional testing, psychological distress, and delays to targeted therapy for influenza as well as true diagnosis.
Roche Molecular Systems
The firm received customer complaints regarding false negative Influenza A (Flu A) results and late Flu A Target Ct values. A false negative influenza A result may lead to additional testing, psychological distress, and delays to targeted therapy for influenza as well as true diagnosis.
The firm received customer complaints regarding false negative Influenza A (Flu A) results and late Flu A Target Ct values. A false negative influenza A result may lead to additional testing, psychological distress, and delays to targeted therapy for influenza as well as true diagnosis.
Reported false positive and invalid results on the affected devices due to anomalous baselines. This may lead to erroneous or delayed diagnoses.
Roche has identified a small number of cobas Liat analyzer units that have consistently high noise levels (background signal) originating from the amber detector (used for Influenza B detection). This noise increases the probability of false positive Influenza B results.
False Mutation Detected results for the exon 20 insertion (Ex20Ins) mutation when using the cobas EGFR Mutation Test v2, may lead to inappropriate treatment
Customers have reported an increased number of false positive SARS-CoV-2 results.
Invalid or false positive results for one or more targets (SARS-CoV-2/Influenza A/Influenza B) using the cobas SARS-CoV-2 & Influenza A/B assay for use under emergency use authorization on the cobas Liat analyzer, showed abnormal PCR growth curves
Invalid or false positive results for one or more targets (SARS-CoV-2/Influenza A/Influenza B) using the cobas SARS-CoV-2 & Influenza A/B assay for use under emergency use authorization on the cobas Liat analyzer, showed abnormal PCR growth curves
When a user creates a measurement tool annotation in the uPath Enterprise software version 1.1, the measurement value is incorrectly calculated when the measurement is viewed in "Split View" viewing mode and the slides within the case are scanned at different magnifications.
Dirty Lens May Cause Invalid or False Positive Results
When using Sample Transfer protocol version 3.0, the drop catcher is not activated on the MagNA Pure 96 instrument, which introduces a potential risk for cross-contamination leading to erroneous results.
Cross-contamination of samples has been reported when running the existing protocol on the system with the rack-based purification run.
The cobas MRSA/SA tests may have decreased performance compared to the analytical sensitivity for MSRA detection. A screening failure can lead to potential infection in the colonized patient being tested as well as the spread of MSRA to others. The United States is not impacted, as the cobas MRSA/SA nucleic acid test for use on the cobas liat system is not available in the US.
The LightCyclerÂż 480 algorithm used for the LightMixÂż Zika rRT-PCR Test, EUA (catalog number 07987897001) occasionally (~1% of the time) calls a positive result for a negative sample if there is an inflection point in the fluorescence signal.
Device was released with default pcal/gain settings for photometers instead of the pcal/gain settings that are required for release. The default settings can potentially lead to the generation of erroneous or invalid results.
During internal studies using contrived plasma specimens, several mutations (L8568R, Exon 19 deletion, T790M) inconsistently generated "No Mutation Detected" (ie False Negative ) result with the cobas EGFR mutation Text V2.0 when utilizing the cobas cfDNA Sample Preparation kit.
Kit labeled with the incorrect expiration date.
An error was found within the Hungarian translations of the cobasÂż EGFR Mutation Test v2 Instructions for Use (M/N 07340761001-01HU, Doc Rev. 1.0, Dated 08/2015) and the cobasÂż cfDNA Sample Preparation Kit Instructions for Use (M/N 07573758001-01HU, Doc. Rev. 1.0, Dated 05/2015).
The hand-held barcode scanner model IT3800 used with the COBAS AmpliPrep instrument mis-identified a sample barcode ID.
Due to a supplier issue, the incorrect green and amber LED components were used in the manufacture of the LED printed circuit board assemblies (PCBA) in certain cobas Liat Analyzers.
False positive results for Exon 20 insertion mutations are being detected with the cobasÂż EGFR Mutation Test, kit batch T08661.
cobas KRAS Mutation Kit T10786 is generating invalid results for the Mutant Control and/or KRAS Calibrator.
Numerous complaints have been filed that leaking cobas Âż PCR media 4.3 mL IVD have been received from different lots of the cobas Âż PCR Urine kits, cobas Âż PCR Female Swab kits, and cobas Âż PCR media kits.
During an internal investigation, a formulation error that occurred was identified during the manufacture of the cobasÂż 4800 HPV Master Mix reagent that was packaged in four (4) cobasÂż 4800 AMP/DET kits, US- and CE-IVD (240 and 960 test kit configurations). Examination of the batch production record of the material revealed there was an error in the tare weight used for the carboy during the fina
In rare instances, channel shifted results have been generated with cobasÂż 4800 assays run on v1.1.1 of the cobasÂż 4800 system. Raw data review indicates that, in these cases, all signals are shifted by one channel: channel 1 results report as channel 2, channel 2 results report as channel 3, channel 3 results report as channel 4, and channel 4 results report as channel 1. In the reported
The COBAS TaqMan MTB Test Definition Files (TDF) v3.0, for both CE-IVD and JPN-IVD tests, being used with AMPLILINK software version 3.3 series and COBAS TaqMan MTB Test Kits, both CE-IVD and JPN-IVD, have an incorrect Target Elbow Max cutoff value of 48 creating the potential for false negative results to be generated for patient samples with Target Elbows in the range of 48 to 50.
Certain COBAS AmpliPrep instruments using AMPILINK software v.3.3.4 had the sample clot detection flagging feature disabled during quality control release resulting in samples that may not be flagged as having clots.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
Roche Molecular Systems, Inc. has become aware of a device-associated diagnostic software issue.
It was identified that BRAF controls dispositioned as "Internal Use Only" were incorrectly packaged into cobas 4800 BRAF V600 Mutation Test CE-IVD kit lot R03607 and released for distribution. Two control batches manufactured during two process validation studies are involved: PV7711: BRAF Mutant (MUT) Control PV0853: BRAF Wild Type (WT) Control
When using a Laboratory Information system (LIS) with automated systems utilizing AMPLILINK software v3.2 series (AL v3.2) there is a potential for wrong results to be assigned to an order.
Certain lots of COBAS AmpliPrep (CAP) S-tube Input (Box of 12 bags 12x24 S-tube and 12x24 S-clip) can cause the sample input tubes to stick in the barcode clips. As a consequence, the CAP instrument will lift both the sample input tube together with the barcode clip from the sample rack, resulting in an aborted run. No erroneous results would be produced if the issue occurs, but samples in proce
During the real-time stability testing for the cobas KRAS Mutation Test on the commercial lot PO6778, it was identified that the kit was just within specifications for the codon 61 peak height ratio, and that the kit has trended towards the upper specification limit at the 6 month time point but did passed the 6 month stability testing. The kit is labeled for 9 months shelf life stability. The d