A Study of 141W94 Used Alone or in Combination With Zidovudine Plus 3TC in HIV-Infected Patients

Summary

To determine the proportion of patients whose plasma HIV-1 RNA level remains below a detectable level (less than 500/ml) after 24 weeks of study therapy with either 141W94 monotherapy or 141W94 plus zidovudine (ZDV) and lamivudine (3TC). To determine the safety and tolerability of 141W94 monotherapy and the combination of 141W94 plus 3TC in patients with HIV infection. Although dramatic inhibition of HIV-1 replication is achieved with ritonavir or indinavir monotherapy, in both cases maximum suppression required combination treatment together with nucleoside analog RT inhibitors. This study tests the hypothesis that monotherapy with 141W94 doses that result in Cmin levels far in excess of the IC90 corrected for plasma protein binding for HIV-1 can achieve the same virologic and immunologic effects in terms of magnitude and durability, as has been observed with combinations of other protease inhibitors plus nucleoside analogs.

Timeline

Start

—

Primary completion

—

Completion

1998-09

Publications

• Background Murphy RL, Gulick RM, DeGruttola V, D'Aquila RT, Eron JJ, Sommadossi JP, Currier JS, Smeaton L, Frank I, Caliendo AM, Gerber JG, Tung R, Kuritzkes DR. Treatment with amprenavir alone or amprenavir with zidovudine and lamivudine in adults with human immunodeficiency virus infection. AIDS Clinical Trials Group 347 Study Team. J Infect Dis. 1999 Apr;179(4):808-16. doi: 10.1086/314668.
• Background Murphy R, Degruttola V, Gulick R, D'Aquila R, Eron J, Sommadossi JP, Smeaton L, Currier J, Tung R, Kuritzkes D. 141W94 with or without zidovudine/3TC in patients with no prior protease inhibitor or 3TC therapy-ACTG 347. Conf Retroviruses Opportunistic Infect. 1998 Feb 1-5;5th:175 (abstract no 512)
• Background Eron JJ Jr, Smeaton LM, Fiscus SA, Gulick RM, Currier JS, Lennox JL, D'Aquila RT, Rogers MD, Tung R, Murphy RL. The effects of protease inhibitor therapy on human immunodeficiency virus type 1 levels in semen (AIDS clinical trials group protocol 850). J Infect Dis. 2000 May;181(5):1622-8. doi: 10.1086/315447. Epub 2000 Apr 26.
• Background Eron J, Smeaton L, Degruttola V, Schock J, Fiscus S, Tung R, Gulick R, Murphy R. The effects of amprenavir (APV) alone or in combination with ZDV/3TC, on HIV-1 levels in semen: a substudy of ACTG 347. Conf Retroviruses Opportunistic Infect. 1999 Jan 31-Feb 4;6th:109 (abstract no 222)

Drugs

Indications