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Fulltext HIV multi-drug resistance at first-line antiretroviral failure and subsequent virological response in Asia

Jiamsakul A, Sungkanuparph S, Law M, Kantor R, Praparattanapan J, Li PC, et al.

J Int AIDS Soc, 2014;17:19053.

PMID: 25141905 DOI: 10.7448/IAS.17.1.19053

First-line antiretroviral therapy (ART) failure often results from the development of resistance-associated mutations (RAMs). Three patterns, including thymidine analogue mutations (TAMs), 69 Insertion (69Ins) and the Q151M complex, are associated with resistance to multiple-nucleoside reverse transcriptase inhibitors (NRTIs) and may compromise treatment options for second-line ART.

Risk group characteristics and viral transmission clusters in South-East Asian patients infected with human immunodeficiency virus-1 (HIV-1) circulating recombinant form (CRF) 01_AE and subtype B

Oyomopito RA, Chen YJ, Sungkanuparph S, Kantor R, Merati T, Yam WC, et al.

Kaohsiung J. Med. Sci., 2015 Sep;31(9):445-53.

PMID: 26362956 DOI: 10.1016/j.kjms.2015.07.002

Human immunodeficiency virus (HIV)-1 epidemics in Asian countries are driven by varying exposures. The epidemiology of the regional pandemic has been changing with the spread of HIV-1 to lower-risk populations through sexual transmission. Common HIV-1 genotypes include subtype B and circulating recombinant form (CRF) 01_AE. Our objective was to use HIV-1 genotypic data to better quantify local epidemics. TASER-M is a multicenter prospective cohort of HIV-infected patients. Associations between HIV exposure, patient sex, country of sample origin and HIV-1 genotype were evaluated by multivariate logistic regression. Phylogenetic methods were used on genotypic data to investigate transmission relationships. A total of 1086 patients from Thailand, Hong Kong, Malaysia and the Philippines were included in analyses. Proportions of male patients within countries varied (Thailand: 55.6%, Hong Kong: 86.1%, Malaysia: 81.4%, Philippines: 93.8%; p

Fulltext Transmission Networks of HIV-1 Among Men Who Have Sex With Men in East and Southeast Asia

Tee KK, Kantor R, Sungkanuparph S, Takebe Y, Li P, Ditangco R, et al.

J Acquir Immune Defic Syndr, 2015 Sep 01;70(1):e28-30.

PMID: 25835606 DOI: 10.1097/QAI.0000000000000614

Fulltext Transmitted drug resistance and antiretroviral treatment outcomes in non-subtype B HIV-1-infected patients in South East Asia

Phanuphak P, Sirivichayakul S, Jiamsakul A, Sungkanuparph S, Kumarasamy N, Lee MP, et al.

J Acquir Immune Defic Syndr, 2014 May 01;66(1):74-9.

PMID: 24413039 DOI: 10.1097/QAI.0000000000000108

BACKGROUND: We compared treatment outcomes of transmitted drug resistance (TDR) in patients on fully or partially sensitive drug regimens.

METHODS: Factors associated with survival and failure were analyzed using Cox proportional hazards and discrete time conditional logistic models.

RESULTS: TDR, found in 60 (4.1%) of 1471 Asian treatment-naive patients, was one of the significant predictors of failure. Patients with TDR to >1 drug in their regimen were >3 times as likely to fail compared to no TDR.

CONCLUSIONS: TDR was associated with failure in the context of non-fully sensitive regimens. Efforts are needed to incorporate resistance testing into national treatment programs.

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