Dolutegravir (GSK1349572) - CAS 10513375-16-6
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Not Intended for Therapeutic Use. For research use only.
Dolutegravir (GSK1349572): Dolutegravir (formerly know as GSK1349572) is an experimental new drug under investigation for the treatment of HIV infection. Dolutegravir is an integrase inhibitor. Also known as S/GSK1349572 or just "572", the drug is under development by GlaxoSmithKline (GSK). Studies have shown dolutegravir to be effective in patients with resistance to the only currently available integrase inhibitor, raltegravir. Clinical trials are underway to support dolutegravir in combination with abacavir and lamivudine, in a new new fixed dose combination called 572-Trii. Results from the 96-week comparison with efavirenz, SPRING-1, showed dolutegravir 50mg orally to be effective at reducing HIV viral load and raising CD4 counts in integrase-naive patients.
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Dolutegravir, GSK1349572.
1.Dolutegravir, a second-generation integrase inhibitor for the treatment of HIV-1 infection.
Rathbun RC1, Lockhart SM, Miller MM, Liedtke MD. Ann Pharmacother. 2014 Mar;48(3):395-403. doi: 10.1177/1060028013513558. Epub 2013 Nov 19.
OBJECTIVE: To 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.
2.Dolutegravir: a new integrase strand transfer inhibitor for the treatment of HIV.
Shah BM1, Schafer JJ, Desimone JA Jr. Pharmacotherapy. 2014 May;34(5):506-20. doi: 10.1002/phar.1386. Epub 2013 Dec 18.
The first two integrase strand transfer inhibitors (INSTIs) approved for treatment of patients infected with human immunodeficiency virus (HIV) were raltegravir and elvitegravir. Both raltegravir and elvitegravir are now guideline-preferred agents as part of an antiretroviral regimen for treatment-naive patients. However, raltegravir is dosed twice/day. Elvitegravir is available in a single-tablet regimen and dosed once/day because it is administered with the pharmacokinetic booster cobicistat, a potent CYP3A4 inhibitor that can lead to clinically significant drug-drug interactions. In addition, raltegravir and elvitegravir have a low genetic barrier to resistance and are associated with cross-resistance. Dolutegravir is a new-generation INSTI administered once/day without a pharmacokinetic booster and can be coformulated in a single-tablet regimen. Phase III studies have demonstrated the efficacy and safety of dolutegravir for treatment-naive and treatment-experienced patients.
3.Dolutegravir versus raltegravir in antiretroviral-experienced, integrase-inhibitor-naive adults with HIV: week 48 results from the randomised, double-blind, non-inferiority SAILING study.
Cahn P, Pozniak AL, Mingrone H, Shuldyakov A, Brites C, Andrade-Villanueva JF, Richmond G, Buendia CB, Fourie J, Ramgopal M, Hagins D, Felizarta F, Madruga J, Reuter T, Newman T, Small CB, Lombaard J, Grinsztejn B, Dorey D, Underwood M, Griffith S, Min S; Lancet. 2013 Aug 24;382(9893):700-8. doi: 10.1016/S0140-6736(13)61221-0. Epub 2013 Jul 3.
BACKGROUND: Dolutegravir (GSK1349572), a once-daily HIV integrase inhibitor, has shown potent antiviral response and a favourable safety profile. We evaluated safety, efficacy, and emergent resistance in antiretroviral-experienced, integrase-inhibitor-naive adults with HIV-1 with at least two-class drug resistance.
4.Prevalent polymorphisms in wild-type HIV-1 integrase are unlikely to engender drug resistance to dolutegravir (S/GSK1349572).
Vavro C1, Hasan S, Madsen H, Horton J, DeAnda F, Martin-Carpenter L, Sato A, Cuffe R, Chen S, Underwood M, Nichols G. Antimicrob Agents Chemother. 2013 Mar;57(3):1379-84. doi: 10.1128/AAC.01791-12. Epub 2013 Jan 7.
The majority of HIV-1 integrase amino acid sites are highly conserved, suggesting that most are necessary to carry out the critical structural and functional roles of integrase. We analyzed the 34 most variable sites in integrase (>10% variability) and showed that prevalent polymorphic amino acids at these positions did not affect susceptibility to the integrase inhibitor dolutegravir (S/GSK1349572), as demonstrated both in vitro (in site-directed mutagenesis studies) and in vivo (in a phase IIa study of dolutegravir monotherapy in HIV-infected individuals). Ongoing clinical trials will provide additional data on the virologic activity of dolutegravir across subject viruses with and without prevalent polymorphic substitutions.
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CAS 10513375-16-6 Dolutegravir (GSK1349572)

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