Transfer of autologous gene-modified T cells in HIV-infected patients with advanced immunodeficiency and drug-resistant virus - PubMed (original) (raw)

Clinical Trial

. 2007 May;15(5):1024-33.

doi: 10.1038/mt.sj.6300124. Epub 2007 Mar 13.

Tobias Glaunsinger, Ingrid Stahmer, Volker von Baehr, Christopher Baum, Andrea Schilz, Klaus Kuehlcke, Sonja Naundorf, Holger Martinius, Felix Hermann, Tsanan Giroglou, Sebastian Newrzela, Ingrid Müller, Francis Brauer, Gunda Brandenburg, Alexander Alexandrov, Dorothee von Laer

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Clinical Trial

Transfer of autologous gene-modified T cells in HIV-infected patients with advanced immunodeficiency and drug-resistant virus

Jan van Lunzen et al. Mol Ther. 2007 May.

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Abstract

Drug toxicity and viral resistance limit the long-term efficacy of antiviral drug treatment for human immunodeficiency virus (HIV) infection. Thus, alternative therapies need to be explored. We tested the infusion of T lymphocytes transduced with a retroviral vector (M87o) that expresses an HIV entry-inhibitory peptide (maC46). Gene-modified autologous T cells were infused into ten HIV-infected patients with advanced disease and multidrug-resistant virus during anti-retroviral combination therapy. T-cell infusions were tolerated well, with no severe side effects. A significant increase of CD4 counts was observed after infusion. At the end of the 1-year follow-up, the CD4 counts of all patients were still around or above baseline. Gene-modified cells could be detected in peripheral blood, lymph nodes, and bone marrow throughout the 1-year follow-up, and marking levels correlated with the cell dose. No significant changes of viral load were observed during the first 4 months. Four of the seven patients who changed their antiviral drug regimen thereafter responded with a significant decline in plasma viral load. In conclusion, the transfer of gene-modified cells was safe, led to sustained levels of gene marking, and may improve immune competence in HIV-infected patients with advanced disease and multidrug-resistant virus.

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