MAUDE data represents reports of adverse events involving medical devices. This maude entry was filed from a 05 report with the FDA on 2010-07-14 for COBAS TAQMAN 48 ANALYZER manufactured by Roche Diagnostics Ltd..
[9120402]
(b)(4). Computer software performance tests conducted, algorithm analysis, software / firmware caused event, unusual event, the investigation determined that the discrepant target not detected (tnd) result was caused by the baseline normalization calculation of the elth algorithm. In very rare instances, the analysis curves of the affected samples are noisy in the first few cycles. The (b)(4) curves did not have enough valid baseline points for a correct calculation of the baseline. Therefore, the data points of the plateau region were incorrectly used for the calculation of the baseline, leading to an incorrect tnd result. All affected roche molecular systems assays were assessed for risks and possible impacts due to the elth baseline normalization anomaly. All potential failure modes were analyzed. The anomaly has an extremely low rate of occurrence. (b)(4). All residual risks identified were determined to be in the acceptable or alarp (as low as reasonably practical) range. The overall residual risk was determined to be acceptable with no major impact on assay or system performance expected. (b)(4).
Patient Sequence No: 1, Text Type: N, H10
[21993592]
This issue is currently under investigation. No conclusions can be drawn at this time.
Patient Sequence No: 1, Text Type: N, H10
[22121247]
A customer in the u. S. Reported that they received an under-quantitated patient sample result for (b)(6) while using the kit c-taq (b)(6) 48 tests us-ivd (p/n 03577163190; lot n00809) with the cobas taqman 48 analyzer (p/n 03279332001, s/n (b)(4)) with amplilink software v. 3. 2. 2 (p/n 05021357001). The result initially reported was "target not detected. " the sample was re-run twice, and in both repeat tests, the titer was >1. 10e8 iu/ml.
Patient Sequence No: 1, Text Type: D, B5
| Report Number | 2243471-2010-00032 |
| MDR Report Key | 1756417 |
| Report Source | 05 |
| Date Received | 2010-07-14 |
| Date of Report | 2010-07-12 |
| Date of Event | 2010-06-15 |
| Date Mfgr Received | 2010-06-17 |
| Date Added to Maude | 2011-04-07 |
| Event Key | 0 |
| Report Source Code | Manufacturer report |
| Manufacturer Link | Y |
| Number of Patients in Event | 0 |
| Adverse Event Flag | 3 |
| Product Problem Flag | 3 |
| Reprocessed and Reused Flag | 3 |
| Health Professional | 0 |
| Initial Report to FDA | 0 |
| Report to FDA | 0 |
| Event Location | 0 |
| Manufacturer Contact | VINCENT STAGNITTO |
| Manufacturer Street | 1080 US HWY 202 |
| Manufacturer City | BRANCHBURG NJ 088763733 |
| Manufacturer Country | US |
| Manufacturer Postal | 088763733 |
| Manufacturer Phone | 9082537569 |
| Single Use | 3 |
| Previous Use Code | 3 |
| Event Type | 3 |
| Type of Report | 3 |
| Brand Name | COBAS TAQMAN 48 ANALYZER |
| Generic Name | ANALYZER, CHEMISTRY, MICRO, FOR CLINICAL USE |
| Product Code | JJF |
| Date Received | 2010-07-14 |
| ID Number | AMPLILINK SOFTWARE V.3.2.2 |
| Device Availability | N |
| Device Age | DA |
| Device Eval'ed by Mfgr | Y |
| Device Sequence No | 1 |
| Device Event Key | 0 |
| Manufacturer | ROCHE DIAGNOSTICS LTD. |
| Manufacturer Address | FORRENSTRASSE ROTKREUZ, ZUG CH-6343 SZ CH-6343 S |
| Patient Number | Treatment | Outcome | Date |
|---|---|---|---|
| 1 | 0 | 2010-07-14 |