BEUDAMED
    FDA Adverse Event Malfunction Summary report: N

    HEA 1.2 BEADCHIP KIT, SLIDE CE

    MDR report key: 4902665 · Received July 9, 2015

    Report

    Report Number
    3005967741-2015-00010
    Event Type
    Malfunction
    Date Received
    July 9, 2015
    Date of Event
    June 16, 2015
    Report Date
    July 9, 2015
    Manufacturer
    BIOARRAY SOLUTIONS LTD.
    Product Code
    PEP
    PMA / PMN Number
    BP130026
    Product Problem
    Yes
    Report Source
    Manufacturer report
    Reporter Location
    CA, US
    Reporter Occupation
    MEDICAL TECHNOLOGIST

    Narratives

    Additional Manufacturer Narrative · 1

    INTERPRETATION: THE MOLECULAR PRESENCE OF ONLY ADENINE AT THE POLYMORPHIC SITE THAT IS INDICATIVE OF THE KIDD (JK) ANTIGEN WOULD NORMALLY REPRESENT A HOMOZYGOUS JKB INDIVIDUAL, AS WAS REPORTED BY HEA BEADCHIPS HEAA8633_7 AND HEAB0665_5. HOWEVER, THE INDIVIDUAL IS ALSO HOMOZYGOUS FOR A POLYMORPHISM OF THE INTRON 5 SPLICE ACCEPTOR SITE (IVS5AS, ISBT=JK*02N.01, ALSO KNOWN AS 342-1G>A) THAT SILENCES THE EXPRESSION OF THE JKB ANTIGEN. THE SILENCING OF JKB, AS FIRST REPORTED BY LUCIEN ET AL.2, WOULD LEAVE NO EXPRESSION OF THE JKB ANTIGEN ON THE SURFACE OF THE ERYTHROCYTE. JKNULL IS LISTED AS A LIMITATION OF THE PRECISETYPE HEA BEADCHIP TEST AS LISTED IN THE PACKAGE INSERT (PART NUMBER 190-20210). FROM THE PACKAGE INSERT: FALSE POSITIVES AND/OR INVALID RESULTS MAY BE GENERATED IN RARE CASES WHERE A SAMPLE CONTAINS EXAMPLES OF MOLECULAR EVENTS THAT AFFECT THE BLOOD GROUP ANTIGEN EXPRESSION AND PHENOTYPES, (SUCHAS, DNA SEQUENCE VARIATIONS INCLUDING PREMATURE CODON, SNP LEADING TO MISSENCE CHANGE IN AMINO ACID, HYBRID GENES; CHANGES AT THE RNA TRANSCRIPTION LEVEL INCLUDING ALTERNATIVE SPLICING; REUCED PROTEIN EXPRESSION, ETC.) AND THE NUCLEOTIDE CHANGES ASSOCIATED WITH THESE EVENTS ARE NOT EXPLICITLY MONITORED BY THE ASSAY. KNOWN PHENOTYPES ARE KNULL (JKNULL HAS A PREVALENCE OF UP TO 9% AMOUNG POLYNESIANS ) RHNULL, RH HYBRIDS, KMOD, CO(A-B-), IN(LU), LU(A-B-) GP HYBRIDS. PRECENCE OF C.179_180DEL (SER60FS) MUTATION LINKED WITH THE FY(B) ALLELE MAY CHANGE THE FY(B) ANTIGEN EXPRESSION AND LEAD TO A FALSE POSITIVE CALL.

    Description of Event or Problem · 1

    CUSTOMER REPORTED AN JKB TYPING DISCREPANCY WITH THE BIOARRAY HEA V1.2 BEADCHIP KIT.

    Devices

    Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
    446163 HEA 1.2 BEADCHIP KIT, SLIDE CE HEA 1.2 BEADCHIP KIT, SLIDE CE PEP BIOARRAY SOLUTIONS LTD. 800-10202-08 15-31

    Patients

    Seq Age Sex Outcome Treatment
    1