• R Chris Rathbun, Staci M Lockhart, Misty M Miller, and Michelle D Liedtke.
• University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
• Ann Pharmacother. 2014 Mar 1;48(3):395-403.

ObjectiveTo review the pharmacology, safety, and efficacy of dolutegravir, an integrase strand-transfer inhibitor (INSTI), and to discuss its role in the treatment of HIV-1-infected patients.Data SourcesPubMed articles indexed through August 2013 were identified using the search terms S/GSK1349572, dolutegravir, and integrase inhibitor. Information was also identified from the package insert, cited publication references, professional meeting abstracts, and the ClinicalTrials.gov registry.Study Selection And Data ExtractionEnglish language articleswere selected for evaluation, with preference given to safety, efficacy, and pharmacokinetic studies conducted in HIV-1-infected patients.Data SynthesisDolutegravir is a new INSTI approved for combination treatment in HIV-1-infected adults and adolescent children. Four phase 3 studies provide the basis for current labeling in antiretroviral-naïve and antiretroviral-experienced adults. Results from these studies demonstrate that dolutegravir is noninferior in efficacy to raltegravir in antiretroviral-naïve patients and superior in antiretroviral-experienced patients. Superiority to efavirenz and darunavir/ritonavir was also demonstrated in antiretroviral-naïve patients. Dolutegravir is well tolerated, exhibits low potential for drug-drug interactions, and has a long serum half-life, allowing it to be administered once-daily in patients without preexisting INSTI resistance. Twice-daily administration is recommended in patients with known or suspected resistance mutations to first-generation INSTIs. Mild elevations in serum creatinine occur following dolutegravir initiation from inhibition of renal organic cation transporter 2 but do not reflect changes in glomerular filtration.ConclusionsDolutegravir is the first second-generation INSTI and exhibits several advantages over current integrase inhibitors and other preferred antiretrovirals. Long-term efficacy and safety are needed to define dolutegravir's role in treatment.

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