JAC Advance Access originally published online on December 12, 2002
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Journal of Antimicrobial Chemotherapy (2003) 51, 171-174
© 2003 The British Society for Antimicrobial Chemotherapy
Immunovirological outcomes in 70 HIV-1-infected patients who switched to lopinavir/ritonavir after failing at least one protease inhibitor-containing regimen: a retrospective cohort study
Institute of Infectious and Tropical Diseases, University of Milan, Luigi Sacco Hospital, via G.B. Grassi 74, 20157 Milan, Italy
Received 8 April 2002, returned 2 July 2002, revised 1 August 2002; accepted 20 August 2002
The immunovirological outcome of lopinavir/ritonavir was evaluated in 70 antiretroviral-experienced HIV patients; at baseline, median CD4+ cell count was 218 cells/mm3 and median plasma viraemia 4.58 log10 copies/mL. After 12 months, we observed an increase in CD4+ cell count to 322 cells/mm3 (P = 0.0001) and a decrease in plasma viraemia to 2.35 log10 copies/mL (P = 0.0001). Four patients discontinued lopinavir/ritonavir during observation. Among metabolic parameters, only triglyceride concentrations increased during treatment (P = 0.02). Twenty-six patients had a genotypic resistance test at baseline; four had
6 mutations known to reduce susceptibility to lopinavir/ritonavir. Undetectable plasma viraemia was obtained only in patients with
5 mutations (61.9%).
* Corresponding author. Tel: +39-02-3904-2677; Fax: +39-02-356-0805; E-mail: tbini{at}mailserver.unimi.it
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