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Impact of maraviroc on immune restoration in an advanced stage HIV-infected patient

Background

Maraviroc is a CCR5 antagonist with clearly demonstrated virological efficacy in patients refractory to prior treatment and infected with an R5-tropic virus.

This antiretroviral drug would appear to have a special immunomodulatory property, given the significantly higher increase in CD4 count in patients treated with maraviroc in clinical trials.

We report the case of a severely immunocompromised patient in which the introduction of maraviroc reduced viral load to below the threshold of 40 copies/ml, with an increase in CD4 of over 100 in the space of 17 months.

Methods

The patient was a 53 year old man diagnosed with HIV in 1987, and classed stage C according to CDC classification for cerebral toxoplasmosis in June 1995. His history includes cerebral histoplasmosis in April 1997 (relapse in April 2006) and stage IV Hodgkin's lymphoma with visceral involvement in October 2006 (CD4 = 1/mm3). The first antiretroviral treatment was given in October 1995 (CD4 <50/mm3), and the first maraviroc-based combination therapy was his 28th line treatment (16 stoppages for treatment failure). In January 2008, the tropism test (trofile test) gave an R5 profile and the genotypic resistance test (ANRS algorithm July 2009) showed, for the RT gene, resistance to AZT, 3TC, D4T, ddI, ABC, EFV, NVR and possibly to TDF and ETV; for the protease gene, resistance to IDVr, SQVr, NFV, FPVr, ATV, DRVr, LPVr and possibly to TPVr.

Results

Table 1 shows viro-immunological changes with treatment:

Table 1

Discussion

This case report shows the possibility of being confronted with an R5-tropic virus after 21 years' progression, and 15 years of antiretroviral treatment, with severe immunosuppression. The three successive maraviroc-based combination therapies lead to an increase in CD4 count independent of the virological response, with a delta of +120 CD4 after 17 months. A parallel increase in the CD8 count was also observed, as has been reported in clinical trials.

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Correspondence to Isabelle Poizot-Martin.

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Open Access This article is published under license to BioMed Central Ltd. This is an Open Access article is distributed under the terms of the Creative Commons Attribution License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Bregigeon, S., Menard, A., Faucher, O. et al. Impact of maraviroc on immune restoration in an advanced stage HIV-infected patient. Retrovirology 7 (Suppl 1), P59 (2010). https://doi.org/10.1186/1742-4690-7-S1-P59

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  • DOI: https://doi.org/10.1186/1742-4690-7-S1-P59

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