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Caskey, Marina; Schoofs, Till; Gruell, Henning; Settler, Allison; Karagounis, Theodora; Kreider, Edward F; Murrell, Ben; Pfeifer, Nico; Nogueira, Lilian; Oliveira, Thiago Y; Learn, Gerald H; Cohen, Yehuda Z; Lehmann, Clara; Gillor, Daniel; Shimeliovich, Irina; Unson-O'Brien, Cecilia; Weiland, Daniela; Robles, Alexander; Kümmerle, Tim; Wyen, Christoph; Levin, Rebeka; Witmer-Pack, Maggi; Eren, Kemal; Ignacio, Caroline; Kiss, Szilard; West, Jr, Anthony P; Mouquet, Hugo; Zingman, Barry S; Gulick, Roy M; Keler, Tibor; Bjorkman, Pamela J; Seaman, Michael S; Hahn, Beatrice H; Fätkenheuer, Gerd; Schlesinger, Sarah J; Nussenzweig, Michel C; Klein, Florian
Nature medicine, 02/2017, Letnik: 23, Številka: 2Journal Article
Monoclonal antibody 10-1074 targets the V3 glycan supersite on the HIV-1 envelope (Env) protein. It is among the most potent anti-HIV-1 neutralizing antibodies isolated so far. Here we report on its safety and activity in 33 individuals who received a single intravenous infusion of the antibody. 10-1074 was well tolerated and had a half-life of 24.0 d in participants without HIV-1 infection and 12.8 d in individuals with HIV-1 infection. Thirteen individuals with viremia received the highest dose of 30 mg/kg 10-1074. Eleven of these participants were 10-1074-sensitive and showed a rapid decline in viremia by a mean of 1.52 log copies/ml. Virologic analysis revealed the emergence of multiple independent 10-1074-resistant viruses in the first weeks after infusion. Emerging escape variants were generally resistant to the related V3-specific antibody PGT121, but remained sensitive to antibodies targeting nonoverlapping epitopes, such as the anti-CD4-binding-site antibodies 3BNC117 and VRC01. The results demonstrate the safety and activity of 10-1074 in humans and support the idea that antibodies targeting the V3 glycan supersite might be useful for the treatment and prevention of HIV-1 infection.
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in: SICRIS
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