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HIV/AIDS Therapy

HIV phenotypic/genotypic markers of resistance evaluated at virologic failure

Published in Blood Weekly, October 28th, 2004

HIV phenotypic and genotypic markers of resistance were evaluated at virologic failure.

"We evaluated phenotypic and genotypic markers of drug resistance in human immunodeficiency virus type 1 (HIV-1) at the time of virologic failure (VF) in subjects in the AIDS Clinical Trials Group Protocol 388 (ACTG 388) who received lamivudine-zidovudine (or lamivudine-stavudine) and either indinavir, efavirenz-indinavir, or nelfinavir-indinavir," researchers in the United States report.

"At VF, phenotypically susceptible HIV-1 was found in 55% of subjects in the nelfinavir-indinavir arm, compared with 22% in the indinavir arm (P=0.006). Phenotypic resistance to...

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