HIV/AIDS was first characterised in 1983. By the early 2010s, the virus had killed over 28 million people worldwide, and 34 million people were living with the infection. Although a cure remained elusive, antiretroviral treatments were able to slow the progression of the disease and provide sufferers with a near-normal life expectancy. However, while antiretroviral treatments reduced the risk of death, these medications were expensive and often associated with side effects.
In 2012, a vaccine known as SAV001 – which had previous success in animal subjects – began Phase 1 human trials in London, Ontario. This randomised, observer-blinded, placebo-controlled study used a ground-breaking technique involving a genetically modified, killed whole-virus vaccine. Prior to this, other experimental vaccines had either used subunits of the virus, or relied on genetically modified non-HIV viruses to carry an HIV-like genetic
sequence.
SAV001 was administered to infected men and women aged 18 to 50. Results from the trials showed that patients experienced no adverse effects – no local reactions from the injections, or any signs, symptoms, or reactions to any potential toxicities – while significantly boosting immunity.*
With proven safety and tolerability in humans, the experimental vaccine progressed to Phase II and Phase III trials, with similar success. By 2017, it is becoming commercially available.*
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