On 08oct2020, grifols customer, (b)(6) in (b)(6), reported a discrepant (b)(6) result between serology and the procleix ultrio plus assay.
The customer had a donation that was (b)(6), anti-(b)(6), and anti-(b)(6) but the pool of 16 that it was tested in was nonreactive when tested with procleix ultrio plus ml 702056.
Testing took place in (b)(6) 2020.
At the time of reporting to grifols, (b)(6) had not analyzed this donation individually on ultrio plus, or other nat methods.
The customer confirmed that the donation was rejected for use as it is standard practice for them to reject donations that are serology (b)(6).
The other 15 samples in the pool were serology (b)(6) and were released.
(b)(6) will perform additional testing for the individual donation using procleix ultrio plus, and procleix ultrio elite assays during the week of (b)(6) 2020, and provide that information to grifols when available.
The site will also be sending back sample to grifols for additional testing.
Grifols will send the samples to a reference lab for (b)(6) quantitative testing.
Grifols qa performed a previous events search of similar complaints and reviewed the qc release data for procleix ultrio plus ml702056.
Review of the qc release data, and a previous events search in the grifols complaint system indicate that the assay is working as designed.
Follow-up information for this report will be provided as necessary.
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