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HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
Parameters : 1
Also known as : HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
EXCLUSIVE PRICE
7500
Report Delivery
10 Days
Free Sample Collection
Bookings above 500
Pre - Instruction
No Preparation Required.
Covid Safety
Assured
Test Details
Test Code BOBT00799
Test Category Individual Test
Sample Type Blood
Details of HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
What is HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02 ?
Certain HLA variants are associated with an increased risk of hypersensitivity reactions to specific drugs. Both the Clinical Pharmacogenetics Implementation Consortium (CPIC) and the Dutch Pharmacogenetics Working Group (DPWG) have issued actionable HLA gene-drug interaction guidelines but diagnostic test criteria remain largely unknown. We present an overview of the diagnostic test criteria of the actionable HLA – drug pairs.

Methods: A systematic literature search was conducted in PubMed, Embase, Web of Science, and Cochrane Library. Original case-control and cohort studies were selected and sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and number needed to genotype (NNG) were calculated for the actionable HLA-drug pairs.

Results: In general, the HLA tests show high specificity and NPV for predicting hypersensitivity reactions. The sensitivity of HLA tests shows a wide range, from 0-33% for HLA-B*1502 testing to predict lamotrigine induced SJS/TEN up to 100% for HLA-B*5701 to predict immunologically confirmed abacavir hypersensitivity syndrome (ABC-HSR). PPV is low for all tests except for HLA-B*5701 and ABC-HSR which is approximately 50%. HLA-B*5701 to predict ABC-HSR shows the lowest NNG followed by HLA-B*5801 for allopurinol induced severe cutaneous adverse drug reactions and HLA-B*1502 for carbamazepine induced SJS/TEN.

Discussion: This is the first overview of diagnostic test criteria for actionable HLA-drug pairs. Studies researching HLA genes and hypersensitivity are scarce for some of the HLA-drug pairs in some populations and patient numbers in studies are small. Therefore, more research is necessary to calculate the diagnostic test criteria more accurately.
Routine Tests
HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
Parameters : 1
Also known as : HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
EXCLUSIVE PRICE
7500
Report Delivery
10 Days
Free Sample Collection
Bookings above 500
Pre - Instruction
No Preparation Required.
Covid Safety
Assured
Test Details
Test Code BOBT00799
Test Category Individual Test
Sample Type Blood
Details of HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02
What is HLA HYPERSENSITIVITY TO CARBAMAZEPINE AND PHENYTOIN B 15:02 ?
Certain HLA variants are associated with an increased risk of hypersensitivity reactions to specific drugs. Both the Clinical Pharmacogenetics Implementation Consortium (CPIC) and the Dutch Pharmacogenetics Working Group (DPWG) have issued actionable HLA gene-drug interaction guidelines but diagnostic test criteria remain largely unknown. We present an overview of the diagnostic test criteria of the actionable HLA – drug pairs.

Methods: A systematic literature search was conducted in PubMed, Embase, Web of Science, and Cochrane Library. Original case-control and cohort studies were selected and sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and number needed to genotype (NNG) were calculated for the actionable HLA-drug pairs.

Results: In general, the HLA tests show high specificity and NPV for predicting hypersensitivity reactions. The sensitivity of HLA tests shows a wide range, from 0-33% for HLA-B*1502 testing to predict lamotrigine induced SJS/TEN up to 100% for HLA-B*5701 to predict immunologically confirmed abacavir hypersensitivity syndrome (ABC-HSR). PPV is low for all tests except for HLA-B*5701 and ABC-HSR which is approximately 50%. HLA-B*5701 to predict ABC-HSR shows the lowest NNG followed by HLA-B*5801 for allopurinol induced severe cutaneous adverse drug reactions and HLA-B*1502 for carbamazepine induced SJS/TEN.

Discussion: This is the first overview of diagnostic test criteria for actionable HLA-drug pairs. Studies researching HLA genes and hypersensitivity are scarce for some of the HLA-drug pairs in some populations and patient numbers in studies are small. Therefore, more research is necessary to calculate the diagnostic test criteria more accurately.
 

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