Maraviroc: A Coreceptor CCR5 Antagonist for Management of HIV Infection

Raymond Yost; Timothy R. Pasquale; Eric G. Sahloff


Am J Health Syst Pharm. 2009;66(8):715-726. 

In This Article


Available data support the use of maraviroc, the first CCR5 antagonist to receive FDA marketing approval, as part of an optimized antiretroviral regimen in treatment-experienced patients infected with CCR5-tropic HIV.

After this manuscript was accepted for publication, a more sensitive tropism test was developed and validated. This tropism assay replaces the previous assay and is still commercially available under the name Trofile. The enhanced assay is 100% sensitive in detecting 0.3% CXCR4-tropic minor variants.[52] As previously noted, the Trofile tropism assay requires a viral load of > 1000 copies/mL and should be performed before the initiation of maraviroc.


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