What drugs are INSTI?
The integrase inhibitors currently on the market include:
- raltegravir (Isentress)
- dolutegravir (Tivicay)
- elvitegravir (available in combination with other drugs; no longer available alone)
- bictegravir (available in combination with other drugs; not available alone)
Is dolutegravir an INSTI?
Dolutegravir (DTG) is the only second-generation INSTI with FDA approval (2013). It has potential advantages in comparison to first-generation INSTI’s, including unboosted daily dosing, limited cross resistance with raltegravir and elvitegravir, and a high barrier to resistance.
Which drug is an integrase strand transfer inhibitor?
Integrase strand transfer inhibitors (INSTIs) are oral antiretroviral agents used against HIV infection. There are three agents available, including raltegravir, elvitegravir and dolutegravir, some of which are available as combination medications with other antiretroviral drugs.
What does insti stand for?
Integrase Strand Transfer Inhibitor (INSTI)
Is tenofovir an integrase inhibitor?
The United States Food and Drug Administration (FDA) have approved the following integrase inhibitors for use: bictegravir, which is only available in combination with emtricitabine and tenofovir alafenamide, under the brand name Biktarvy.
What class is Dolutegravir?
Dolutegravir is in a class of medications called HIV integrase inhibitors. It works by decreasing the amount of HIV in your blood and increasing the number of immune cells that help fight infections in your body.
What are the examples of integrase strand transfer inhibitors?
Four integrase strand transfer inhibitors (INSTIs)—bictegravir (BIC), dolutegravir (DTG), elvitegravir (EVG), and raltegravir (RAL)—are approved for use in antiretroviral therapy (ART)-naive patients with HIV.
What generation is the Insti test?
Which generation is the INSTI HIV Self Test? The INSTI HIV Self Test is a 3rd generation screening test since it is designed to detect IgM and IgG antibodies that are generated in response to HIV infection.
What is insti resistance?
Integrase strand transfer inhibitor (INSTI)-resistance mutations for the surveillance of transmitted HIV-1 drug resistance.
What is the difference between tenofovir alafenamide and tenofovir disoproxil fumarate?
The novel tenofovir prodrug tenofovir alafenamide delivers 90% lower plasma tenofovir compared with standard tenofovir disoproxil fumarate. This pharmacology might reduce the off-target effects of tenofovir, in particular renal and bone toxicity.
What is the mechanism of integrase inhibitors?
MOA (Mechanism of Action) Specifically, integrase binds to viral DNA and joins it with host DNA. The divalent cations in the catalytic core of integrase enable it to form covalent bonds with DNA. This is followed by cellular repair activities that seal the viral DNA into the chromosome.
What is the difference between TDF and TAF?
The major difference with TDF is that it has much higher plasma tenofovir exposure, which leads to some of the safety concerns. In fact, TAF in Genvoya is formulated as one-tenth the dose of TDF in Stribild, which results in a 90% lower circulating tenofovir plasma concentration.
Is dolutegravir used as PEP?
Dolutegravir, raltegravir or rilpivirine as the 3rd drug: The current guidelines recommend dolutegravir or raltegravir or rilpivirine as the 3rd drug in PEP. Using three drugs for PEP increases the likelihood of an adverse event e.g. drug-drug interactions and the potential for rhabdomyolysis with raltegravir.
How integrase strand transfer inhibitors work?
Integrase (IN) strand transfer inhibitors (INSTIs) are recent compounds in the antiretroviral arsenal used against HIV. INSTIs work by blocking retroviral integration; an essential step in the viral lifecycle that is catalyzed by the virally encoded IN protein within a nucleoprotein assembly called an intasome.
Is INSTI accurate?
In US clinical trials, INSTI was proven to be more than 99% accurate. Fingerstick blood, the most common method for rapid testing, has a sensitivity of 99.8% and specificity of 99.5%. and similar results have been demonstrated in whole blood and plasma, too.