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Current Research

Scientific Overview


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Sandhya Vasan, M.D.
Assistant Professor

Dr. Vasan is an Aaron Diamond Assistant Professor at the Rockefeller University. Her laboratory focuses on the clinical development and evaluation of candidate vaccines, adjuvants, and delivery systems to improve the potency of vaccines against the human immunodeficiency virus (HIV) and malaria.

Funded by the Bill and Melinda Gates Foundation Collaboration for AIDS Vaccine Discovery, Dr. Vasan has led the effort to assess the safety, tolerability, and immunogenicity of ADVAX when delivered by the TriGridTM in vivo electroporation device in a Phase 1 clinical trial conducted from 2007-2009. This study was the first demonstration that delivery of a DNA vaccine with in vivo electroporation is safe and tolerable in healthy volunteers, and improves T cell responses to the same vaccine delivered by conventional intramuscular injection by up to 70-fold. The Vasan lab continues to conduct preclinical studies on the mechanism and role of in vivo electroporation on DNA vaccines as standalone vaccine candidates and as priming vaccines for viral vector or protein boosts, in order to enable future clinical studies.

Currently, Dr. Vasan is leading the effort to advance a novel and potent glycolipid adjuvant into a Phase I clinical trial, which has the potential to boost immune responses to adenoviral-vectored vaccines against malaria and HIV-1 through its activation of natural killer T cells and dendritic cells. Her research focuses on assessing the adjuvant effect of glycolipids in non human primates and humans, as well as determining innate immune correlates to enhanced humoral and cellular immunogenicity.

The Vasan laboratory also collaborating closely with Dr. David Ho and TaiMed Biologics in the clinical development of ibalizumab, a monoclonal antibody directed against domain 2 of the CD4 receptor, for HIV prevention.