Abstract:
OBJECTIVES:Human leukocyte antigen (HLA)-B(*)5701 is strongly associated with developing a hypersensitivity reaction to abacavir (ABC) in White and Hispanic subjects. Across the UK, limited data exist on HLA-B(*)5701 prevalence in HIV-1-infected subjects. We determined HLA-B(*)5701 prevalence in the general HIV-1-infected population and in specific ethnic groups, particularly Black Africans who, in general, exhibit greater genetic diversity. We also compared HLA-B(*)5701 results obtained from local laboratories with those from a central provider. DESIGN AND METHODS:Multi-centre, observational study. All HIV-1-infected adult individuals receiving care at participating centres were eligible, irrespective of treatment status or prior exposure to ABC. Subjects provided samples for HLA-B(*)5701 assessment by both local (blood) and central laboratories (buccal swabs). HLA-B(*)5701 prevalence was adjusted to represent the ethnic group composition of the general UK population, and by main ethnic group. RESULTS; From eight UK centres, 1494 subjects [618 (41%) White, 770 (52%) Black] were recruited. Eighty-nine per cent of Black subjects reported an immediate country of origin in Africa. Overall adjusted HLA-B(*)5701 prevalence was 4.55% [95% confidence interval (CI) 3.49% to 5.60%]. Among White subjects, prevalence was 7.93% (CI 5.80% to 10.06%). Among Black subjects, only two (both Ugandan) were HLA-B(*)5701 positive giving a rate of 0.26% (CI 0.07% to 0.94%). CONCLUSIONS:HLA-B(*)5701 prevalence was similar to previously reported rates in White HIV-infected subjects but considerably lower than that reported in Black HIV-1-infected subjects, as a result of the large proportion of Black African subjects.
journal_name
HIV Medjournal_title
HIV medicineauthors
Orkin C,Sadiq ST,Rice L,Jackson F,UK EPI team.doi
10.1111/j.1468-1293.2009.00762.xsubject
Has Abstractpub_date
2010-03-01 00:00:00pages
187-92issue
3eissn
1464-2662issn
1468-1293pii
HIV762journal_volume
11pub_type
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