Effects of Tipranavir/Ritonavir on the Pharmacokinetic Characteristics of Triple Drug Nucleoside and Non-nucleoside Reverse Transcriptase Inhibitor Therapy in HIV-1-infected Subjects

Summary

Primary: Sequentially determine the effects of three dose combinations of tipranavir (TPV) / ritonavir (RTV) (administered b.i.d.), TPV 1250 mg/RTV 100 mg vs. TPV 750 mg/RTV 100 mg vs. TPV 250 mg/RTV 200 mg on the steady-state pharmacokinetics of zidovudine, lamivudine, stavudine, didanosine, abacavir, nevirapine and efavirenz at approved doses. The three treatment groups will be enrolled sequentially starting with the highest tipranavir dosage group first and ending with the lowest tipranavir dosage group. Secondary: A) To assess the effects of zidovudine, lamivudine, stavudine, didanosine, abacavir, nevirapine, and efavirenz on the pharmacokinetics of tipranavir/ritonavir compared to historical controls. B) To assess the safety of three tipranavir/ritonavir combinations when used in combination with protocol defined antiretrovirals.

Timeline

Start

2001-02

Primary completion

2002-02

Completion

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Drugs

Indications