Researchers
at the University of Western Ontario recently completed Phase 1 human trials of
a new preventative HIV vaccine, and the results give hope that they may be on
track towards a commercially available vaccine that will protect against HIV.
The
vaccine, called SAV001-H, was developed by Dr. Chil-Yong Kang and his team at
Western University's Schulich School of Medicine & Dentistry. So far,
SAV001-H is unique in being the only preventative vaccine to use a
genetically-modified version of the whole virus (similar to vaccines for polio,
influenza and rabies, to name a few).
"We
infect the cells with a genetically modified HIV-1," Kang said in an
interview with Ontario Business Report. "The infected cells produce lots
of virus, which we collect, purify and inactivate so that the vaccine won’t
cause AIDS in recipients, but will trigger immune responses."
This
will hopefully make the vaccine not only effective, but easy and cheap to
produce.
Now,
Phase 1 trials (which started in March of 2012) are specifically to test if the
vaccine is safe, and to identify any side effects (if any). It's not until
Phases 2 and 3 that the actual effectiveness of the vaccine is truly put to the
test. However, it seems that SAV001-H passed its Phase 1 trials with flying
colours, since no adverse effects were reported in any of the patients that
participated in the study
With
this success, it now opens the doors for Kang and his team to continue on with
Phase 2 trials, where they'll test the vaccine's ability to produce an immune
response and its overall effectiveness.
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