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- W2973091596 abstract "People living with HIV (PLWH) have expressed concern about the life-long burden and stigma associated with taking pills daily and can experience medication fatigue that might lead to suboptimal treatment adherence and the emergence of drug-resistant viral variants, thereby limiting future treatment options1–3. As such, there is strong interest in long-acting antiretroviral (ARV) agents that can be administered less frequently4. Herein, we report GS-CA1, a new archetypal small-molecule HIV capsid inhibitor with exceptional potency against HIV-2 and all major HIV-1 types, including viral variants resistant to the ARVs currently in clinical use. Mechanism-of-action studies indicate that GS-CA1 binds directly to the HIV-1 capsid and interferes with capsid-mediated nuclear import of viral DNA, HIV particle production and ordered capsid assembly. GS-CA1 selects in vitro for unfit GS-CA1-resistant capsid variants that remain fully susceptible to other classes of ARVs. Its high metabolic stability and low solubility enabled sustained drug release in mice following a single subcutaneous dosing. GS-CA1 showed high antiviral efficacy as a long-acting injectable monotherapy in a humanized mouse model of HIV-1 infection, outperforming long-acting rilpivirine. Collectively, these results demonstrate the potential of ultrapotent capsid inhibitors as new long-acting agents for the treatment of HIV-1 infection. A new compound that inhibits HIV capsid assembly and nuclear transport functions offers potential as a long-acting antiretroviral." @default.
- W2973091596 created "2019-09-19" @default.
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- W2973091596 date "2019-09-01" @default.
- W2973091596 modified "2023-10-18" @default.
- W2973091596 title "A highly potent long-acting small-molecule HIV-1 capsid inhibitor with efficacy in a humanized mouse model" @default.
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- W2973091596 doi "https://doi.org/10.1038/s41591-019-0560-x" @default.
- W2973091596 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7396128" @default.
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