A Phase II Double-Blind Study of Delavirdine Mesylate ( U-90152 ) in Combination With Zidovudine ( AZT ) and/or Didanosine ( ddI ) Versus AZT and ddI Combination Therapy

Summary

To determine the safety and anti-HIV activity of delavirdine mesylate ( U-90152 ) in combination with zidovudine ( AZT ) and/or didanosine ( ddI ) versus AZT/ddI combination. U-90152 has demonstrated anti-HIV activity. Since the combination of this drug with either AZT or ddI has synergistic inhibitory activity against HIV-1 in vitro, and triple therapy appears to have greater inhibitory activity against HIV-1 in vitro than dual therapy, the use of U-90152 in combination with AZT and/or ddI may improve the benefits of these drugs in persons with HIV disease.

Timeline

Start

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Primary completion

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Completion

1997-03

Publications

• Background Griffit B, Morse G, Demeter L, Bassett R, Hughes M, Friedland G. Relationship between delavirdine (DLV) plasma levels, HIV RNA responses and DLV resistance during combination therapy with zidovudine (ZDV), and didanosine (ddI). Int Conf AIDS. 1998;12:52 (abstract no 12206)
• Background Freimuth WW, Chuang-Stein CJ, Greenwald CA, Wathen LK, Edge-Padbury BA, Cox SR, Daenzer CL, Wang Y, Carberry PA. Delavirdine (DLV) combined with zidovudine (ZDV) or didanosine (ddI) produces sustained reduction in viral burden and increases in CD4 count in early and advanced HIV-1 infection. Int Conf AIDS. 1996 Jul 7-12;11(1):22 (abstract no MoB295)
• Background Nokta M, Turk P. Partial restoration of HIV specific neutralizing activity (NA) of HIV infected patients receiving antiretrovial therapy: DDI/delaviridine (DLV), AZT/DLV, DDI/AZT or DDI/AZT/DLV. Int Conf AIDS. 1998;12:516 (abstract no 31108)
• Background Friedland GH, Pollard R, Griffith B, Hughes M, Morse G, Bassett R, Freimuth W, Demeter L, Connick E, Nevin T, Hirsch M, Fischl M. Efficacy and safety of delavirdine mesylate with zidovudine and didanosine compared with two-drug combinations of these agents in persons with HIV disease with CD4 counts of 100 to 500 cells/mm3 (ACTG 261). ACTG 261 Team. J Acquir Immune Defic Syndr. 1999 Aug 1;21(4):281-92. doi: 10.1097/00126334-199908010-00005.
• Background Demeter LM, Meehan PM, Morse G, Gerondelis P, Dexter A, Berrios L, Cox S, Freimuth W, Reichman RC. HIV-1 drug susceptibilities and reverse transcriptase mutations in patients receiving combination therapy with didanosine and delavirdine. J Acquir Immune Defic Syndr Hum Retrovirol. 1997 Feb 1;14(2):136-44. doi: 10.1097/00042560-199702010-00006.

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Indications