Updated Studies on the Development of HIV Therapeutic Vaccine

(E-pub Ahead of Print)

Author(s): Mona Sadat Larijani, Amitis Ramezani, Seyed Mehdi Sadat*.

Journal Name: Current HIV Research

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Background: Among various types of pharmaceuticals, vaccines have a special place. However, in the case of HIV nearly after 40 years of its discovery an effective vaccine still is not available. The reason lies in several facts mainly the variability and smartness of HIV as well as complexity of the interaction between HIV and immune responses. A robust, effective and long-term immunity is undoubtedly what a successful preventive vaccine should induce in order to prevent the infection of HIV. Failure of human trials to this end, has led to the idea of developing therapeutic vaccines with the purpose of curing already infected patients by boosting their immune responses against the virus. Nevertheless, the exceptional ability of the virus to escape the immune system based on genetically diverse envelope and variable protein products have made it difficult to achieve an efficient therapeutic vaccine, either.

Objective: We aimed at studying and comparing different approaches of HIV therapeutic vaccines.

Methods: In this review, we summarized the human trials undergoing on HIV therapeutic vaccination which have been registered in the U.S. clinical trial database (clinicaltrials.gov). These attempts are divided to different tables, according to the type of formulation and implication in order to classify and compare their results.

Result/Conclusion: Among several methods applying in studied clinical trials which are mainly divided to DNA, Protein, Peptide, Viral vectors and Dendritic cell based vaccines, protein vaccine strategy which is based on Tat protein induced anti-Tat Abs in 79% HIV patients. However, the studies need to be continued to achieve a durable efficient immune response against HIV-1.

Keywords: HIV, Vaccine, Therapeutic, Clinical trial, accessing antiretroviral therapy (ART) , dendritic cell

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(E-pub Ahead of Print)
DOI: 10.2174/1570162X17666190618160608

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