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https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122691
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| Title: | Impact of efavirenz mid-dose plasma concentration on long-term weight change among virologically suppressed people living with HIV |
| Authors: | Huang, Sung-Hsi;Huang, Wei-Chieh;Lin, Shu-Wen;Chuang, Yu-Chung;Sun, Hsin-Yun;Chang, Sui-Yuan;Kuo, Po-Hsien;Wu, Pei-Ying;Liu, Wen-Chun;Chiang, Chieh;Hung, Chien-Ching;Chang, Shan-Chwen |
| Date: | 2021-06 |
| Issue Date: | 2022-05-09 12:10:19 (UTC+8) |
| Abstract: | Background:
Pharmacogenetic studies have shown that slow and intermediate metabolizers of efavirenz (EFV) gained less weight compared with extensive metabolizers. It is hypothesized that increased EFV exposure suppresses weight gain. We investigated the effect of EFV mid-dose plasma concentration (C12) on long-term weight change among virologically suppressed people living with HIV (PLWH).
Methods:
Participants in a prospective EFV pharmacokinetic study were included if they had been taking EFV-containing combination antiretroviral therapy for more than 240 weeks and had 3 or more weight measurements. The weight changes and time to ≥5% of weight gain over 192 weeks were compared between PLWH with higher and those with lower EFV C12 (using mean population C12 as the cutoff). EFV C12 and CYP2B6 516G>T polymorphism were examined in generalized estimating equations and in a Cox proportional hazards model for associations with weight gain, after adjustments for age, sex, companion antiretroviral agent, CD4 lymphocyte count, and plasma HIV RNA.
Results:
One hundred eighteen PLWH were included. PLWH with higher EFV C12 had less mean weight gain compared with those with lower C12 after 192 weeks (−0.09 vs +1.58 kg, P = 0.033). PLWH with higher C12 were less likely to gain ≥5% weight in Kaplan–Meier analysis (P = 0.0003). In both generalized estimating equations and Cox proportional hazards models, a higher EFV C12 was associated with less weight gain, while CYP2B6 516G>T was not, after adjustments made for confounding factors.
Conclusions:
Our findings support that increased EFV exposure was associated with less weight gain. |
| Relation: | JAIDS Journal of Acquired Immune Deficiency Syndromes 87(2), p.834-841 |
| DOI: | 10.1097/QAI.0000000000002650 |
| Appears in Collections: | [Graduate Institute & Department of Mathematics] Journal Article
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