Human immunodeficiency virus type 1 (HIV-1) inhibitory interactions between protease inhibitor Ro 31-8959 and zidovudine, 2',3'-dideoxycytidine, or recombinant interferon-alpha A against zidovudine-sensitive or -resistant HIV-1 in vitro.
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| Abstract |
Protease inhibitor Ro 31-8959, a compound that interrupts human immunodeficiency virus (HIV)-specific formation of infectious virions, was evaluated in two-drug combined regimens with zidovudine, 2',3'-dideoxycytidine (ddC), or recombinant interferon-alpha A (rIFN-alpha A) against HIV-1 replication in vitro. By using peripheral blood mononuclear cells infected with HIV-1, drug interactions were evaluated by the median-effect principle and the isobologram technique. A zidovudine-sensitive and -resistant HIV-1 isolate pair was studied. Additive to synergistic anti-HIV-1 interactions were seen with 7.5-30 nM Ro 31-8959 and 0.005-0.02 microM zidovudine (for the zidovudine-sensitive HIV-1 isolate), 0.25-1.0 microM zidovudine (for the zidovudine-resistant HIV-1 isolate), 0.025-0.1 microM ddC, and 8-32 units/mL rIFN-alpha A, without additive toxicity. Phase I/II clinical trials of Ro 31-8959 for therapy of HIV-1 infection are in progress. If results are favorable, combined regimens including Ro 31-8959 deserve consideration for future clinical trials.
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| Authors | V A Johnson, D P Merrill, T C Chou, M S Hirsch |
| Journal | The Journal of infectious diseases (J Infect Dis) Vol. 166 Issue 5 Pg. 1143-6 (Nov 1992) ISSN: 0022-1899 [Print] United States |
| PMID | 1328402 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't, Research Support, U.S. Gov't, P.H.S.) |
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