This study will determine the immunogenicity of Spikogen in vaccine naïve individuals.Spikogen will be administered as two doses 1 month apart with a third booster dose either1 or 3 months after the second dose. This study will provide key data on SARS-CoV-2antibody responses.
The SARS-CoV-2 outbreak has caused millions of deaths globally. It has a particularly
high mortality rate in elderly people and those with chronic disease where mortality
rates can be as high as 20-30%. SARS-COV-2 vaccines remain a key priority to help fight
the current pandemic. COVID-19 vaccines prevent symptomatic infection and may help reduce
virus transmission. Spikogen® vaccine, also known as Covax-19™ in Australia, is an
adjuvanted recombinant protein Covid-19 vaccine has recently been approved by the Iranian
FDA for emergency use in Iran in adults as a primary vaccine course and booster dose,
after meeting its primary efficacy endpoint in a Phase 3 trial in 16,876 participants
randomised 3:1 to receive Spikogen vaccine or saline placebo via two intramuscular doses
3 weeks apart where Spikogen vaccine demonstrated significant protection against serious
infection with the delta variant. Approximately 5-10% of the broader Australian
population and an even higher proportion of the indigenous populations remains
unvaccinated despite current availability of these vaccines. One reason is that some
people have medical contraindications to the current vaccines, such as serious allergies
to the vaccine components such as polyethyleneglycol (PEG) in the mRNA vaccines.
Spikogen vaccine is made using a recombinant protein approach with the SARS-CoV-2 spike
protein synthesized in an insect cell line grown in broth. Insect cell expression of
recombinant protein is a well-established vaccine manufacturing approach. Spikogen
vaccine also contains a unique Australian developed adjuvant called Advax-CpG55.2, which
is added to the spike protein to make the vaccine more effective. AdvaxCpG55.2 has two
components, one a natural plant sugar called inulin, and the second a short synthetic
oligonucleotide polymer, known as CpG55.2 oligonucleotide.
Spikogen vaccine is designed to protect against SARS-CoV-2 infection. It has been shown
to be effective against infection in hamster, ferret and monkey SARS-CoV-2 infection
models.
This study will determine the immunogenicity of Spikogen in vaccine-naïve individuals.
Spikogen will be administered as two doses 31 month apart with a third booster dose given
either 1 or 3 months after the second dose.
Biological: Advax-CpG55.2 adjuvanted recombinant spike protein
recombinant SARS-CoV-2 spike protein formulated with Advax-CpG55.2 adjuvant
Other Name: Spikogen vaccine
Inclusion Criteria:
- Able to provide written informed consent
- Males or females* 18 years of age or older
- Understand and are likely to comply with planned study procedures and be available
for all study visits.
- Have not previously had a Covid-19 vaccine and do not intend to have a non-study
Covid-19 vaccine within the next 6 months
Exclusion Criteria:
- History of Covid-19 vaccination.
- History of serious vaccine allergy.
- Pregnancy1
- Have received an experimental agent within 30 days prior to the study vaccination or
expect to receive another experimental agent during the trial reporting period.
- Any medical, social or mental condition which, in the opinion of the investigator,
would be detrimental to the subjects or the study.
ARASMI
Adelaide, South Australia, Australia
Dimitar Sajkov, MBBS, Study Director
ARASMI