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- Title
Association between HLA-B*1502 and carbamazepine-induced severe cutaneous adverse drug reactions in a Thai population.
- Authors
Wichittra Tassaneeyakul; Somsak Tiamkao; Thawinee Jantararoungtong; Pei Chen; Shu-Yi Lin; Wei-Hsuan Chen; Parinya Konyoung; Usanee Khunarkornsiri; Narong Auvichayapat; Kasemsin Pavakul; Kongkiat Kulkantrakorn; Charoen Choonhakarn; Siranun Phonhiamhan; Namfon Piyatrakul; Thiti Aungaree; Sunsanee Pongpakdee; Praphan Yodnopaglaw
- Abstract
Carbamazepine (CBZ) has been reported as the most common culprit drug for Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) in several Asian countries including Thailand. A strong association between HLA-B*1502 and CBZ-induced SJS/TEN has been reported in Han Chinese but not in Caucasian and Japanese populations. A case–control study was conducted to determine whether HLA-B*1502 is a valid pharmacogenetic test for SJS/TEN caused by CBZ in a Thai population. Among 42 CBZ-induced patients with SJS/TEN, 37 (88.10%) patients carried the HLA-B*1502 while only 5 (11.90%) of the CBZ-tolerant controls had this allele. The risk of CBZ-induced SJS/TEN was significantly higher in the patients with HLA-B*1502, with an odds ratio (OR) of 54.76 [95% confidence interval (CI) 14.62–205.13, p = 2.89 × 10−12]. The sensitivity and specificity of HLA-B*1502 for prediction of CBZ-induced SJS/TEN were 88.10%. By assuming a 0.27% as a prevalence rate of CBZ-induced SJS/TEN in a Thai population, the positive predictive value (PPV) and negative predictive value (NPV) of the HLA-B*1502 were 1.92% and 99.96%. Results from this study suggest that HLA-B*1502 may be a useful pharmacogenetic test for screening Thai individuals who may be at risk for CBZ-induced SJS and TEN.
- Publication
Epilepsia (Series 4), 2010, Vol 51, Issue 5, p926
- ISSN
0013-9580
- Publication type
Academic Journal
- DOI
10.1111/j.1528-1167.2010.02533.x