Cytodyn Inc.

Jose D Murga

William C Olson

Paul J Maddon

Daniel C Pevear

Robert J Israel

This invention provides a method of reducing viral load in an HIV-1-infected human subject which comprises administering to the subject an effective HIV-1 viral load reducing dose of a CCR5 receptor antagonist, such as a humanized antibody designated PRO 140 or an anti-CCR5 receptor monoclonal antibody, wherein the viral load reducing dose achieves an average maximum decrease of viral load in the subject of at least 1.83 logto 2.5 logat about ten days following administration of the CCR5 receptor antagonist and wherein the viral load reducing dose further achieves a mean viral load reduction of 1.7 logat about nine days following administration of the CCR5 receptor antagonist.

Methods for reducing viral load in HIV-1 infected patients

This method provides a method for reducing HIV-1 viral load in an HIV-1-infected human subject which comprises administering to the subject at a predefined interval effective HIV-1 viral load-reducing doses of (a) a humanized antibody designated PRO 140, or of (b) an anti-CCR5 receptor monoclonal antibody. This invention also provides a method for inhibiting in a human subject the onset or progression of an HIV-1-associated disorder, the inhibition of which is effected by inhibiting fusion of HIV-1 to CCR5CD4target cells in the subject. This invention also provides a method for treating a subject infected with HIV-1 comprising administering to the subject (a) a monoclonal antibody which (i) binds to a CCR5 receptor on the surface of the subject's CD4cells and (ii) inhibits fusion of HIV-1 to the subject's CCR5CD4+ cells, and (b) a non-antibody CCR5 receptor antagonist, in amounts effective to treat the subject.

Methods for inhibiting HIV-1 replication involving the administration of an anti-CCR5 receptor monoclonal antibody and small molecule CCR5 receptor antagonist

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Rosedale, NY, United States of America

Jose D Murga