Viral tropism

This test is only used if you are going to use a drug called maraviroc.

Maraviroc is a CCR5 inhibitor that works at the early stage of the HIV lifecycle.

In the UK and Europe, tropism is tested using a genotype resistance test. A special type of resistance test (testing proviral DNA) can be used if your viral load is low or undetectable.

UK (BHIVA) guidelines for tropism testing. (2009)

Last updated: 1 August 2021.