Preclinical Pharmacology and Pharmacokinetics of GW433908, a Water-Soluble Prodrug of the Human Immunodeficiency Virus Protease Inhibitor Amprenavir

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Preclinical pharmacology and pharmacokinetics of GW433908, a water-soluble prodrug of the human immunodeficiency virus protease inhibitor amprenavir.

GW433908 is the water-soluble, phosphate ester prodrug of the human immunodeficiency virus type 1 protease inhibitor amprenavir (APV). A high-yield synthesis of GW433908 is achieved by phosphorylation of the penultimate precursor of APV with phosphorous oxychloride (POCl(3)) in pyridine. A single-dose pharmacokinetic study of GW433908 sodium salt in dogs showed that APV exposure was similar to ...

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Six-week randomized controlled trial to compare the tolerabilities, pharmacokinetics, and antiviral activities of GW433908 and amprenavir in human immunodeficiency virus type 1-infected patients.

This study compared the plasma amprenavir pharmacokinetics of the human immunodeficiency virus (HIV) protease inhibitors amprenavir (Agenerase) 1,200 mg twice daily (BID) and the amprenavir prodrug GW433908, a formulation that substantially reduces the number of tablets per dose compared with amprenavir, at doses of 1,395 mg and 1,860 mg BID, in combination with abacavir 300 mg BID and lamivudi...

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Human immunodeficiency virus type 1 (HIV-1) protease inhibitors comprise an important class of drugs used in HIV treatments. However, mutations of protease genes accelerated by low fidelity of reverse transcriptase yield drug resistant mutants of reduced affinities for the inhibitors. This problem is considered to be a serious barrier against HIV treatment for the foreseeable future. In this st...

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ژورنال

عنوان ژورنال: Antimicrobial Agents and Chemotherapy

سال: 2004

ISSN: 0066-4804,1098-6596

DOI: 10.1128/aac.48.3.791-798.2004