Discovery of Potent HIV-1 Capsid Assembly Inhibitors
Discovery of Potent HIV-1 Capsid Assembly Inhibitors
Discovery of Potent HIV-1 Capsid Assembly Inhibitors
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Summary<br />
• Identified two chemotypes that:<br />
• Inhibit capsid assembly in vitro<br />
• Bind to CA-NTD<br />
• Inhibit viral replication<br />
• Pr<strong>of</strong>ile consistent with distinct MoA<br />
• No cross resistance observed with mutations conferring resistance<br />
to NNRTI, NRTI, PI, INI<br />
• Late antiviral effect<br />
• Resistance mutations map to CA and affect inhibitor binding or<br />
assembly function<br />
• EM studies demonstrated inhibitors had pr<strong>of</strong>ound effects in virion<br />
production and morphology<br />
• Complex resistance genotype/pr<strong>of</strong>ile obtained with capsid<br />
assembly inhibitors<br />
• Most mutations in highly conserved residues resulting in reduced<br />
replication capacity<br />
Boehringer Ingelheim - CROI 2010 13
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