Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Department of Internal Medicine, Meharry Medical College, Nashville, Tennessee, USA.
Clin Infect Dis. 2021 May 18;72(10):1820-1822. doi: 10.1093/cid/ciaa975.
Many patients switch from efavirenz- to dolutegravir-based regimens. In a phase 1 dolutegravir-efavirenz interaction study, mean dolutegravir minimum concentration decreased by 60% and 85% among CYP2B6 normal and slow/intermediate metabolizers, respectively. Mean efavirenz half-life was 2.7 times greater in slow vs normal metabolizers. Slow metabolizers will experience more prolonged subtherapeutic dolutegravir concentrations.
许多患者从依非韦伦转为多替拉韦方案。在一项多替拉韦-依非韦伦相互作用的 1 期研究中,CYP2B6 正常和慢/中间代谢者的多替拉韦最低浓度分别降低了 60%和 85%。慢代谢者的依非韦伦半衰期比正常代谢者长 2.7 倍。慢代谢者将经历更长时间的治疗浓度不足的多替拉韦。