alexa The preventive phase I trial with the HIV-1 Tat-based vaccine.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Proteomics & Bioinformatics

Author(s): Ensoli B, Fiorelli V, Ensoli F, Lazzarin A, Visintini R,

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Abstract The native HIV-1 Tat protein was chosen as vaccine candidate for phase I clinical trials based on its role in the natural infection and AIDS pathogenesis, on the association of Tat-specific immune response with the asymptomatic stage as well as on its sequence conservation among HIV clades. A randomized, double blind, placebo-controlled phase I study (ISS P-001) was conducted in healthy adult volunteers without identifiable risk of HIV infection. Tat was administered 5 times monthly, subcute in alum or intradermic alone at 7.5 microg, 15 microg or 30 microg, respectively (ClinicalTrials.gov identifier: NCT00529698). Vaccination with Tat resulted to be safe and well tolerated (primary endpoint) both locally and systemically. In addition, Tat induced both Th1 and Th2 type specific immune responses in all subjects (secondary endpoint) with a wide spectrum of functional antibodies that are rarely seen in natural infection, providing key information for further clinical development of the Tat vaccine candidate. This article was published in Vaccine and referenced in Journal of Proteomics & Bioinformatics

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