Why oral vaccines?

Oral vaccines are superior to current vaccine technology, with advantages in terms of physical distribution, storage and administration as well as the immune response they provoke.

The OraPro oral vaccine platform delivers prolonged thermal stability at ambient temperature, eliminating the cold chain, and even the ultra cold chain, from vaccine distribution.



Advantages of the OraPro platform



Multiple usage

OraPro vaccines are delivered via mucosal cells, which means the same viral vector can be used repeatedly to target different pathogens or mutations. Viral vector vaccines that are delivered via injection can usually be used only once due to anti-vector immunity, in which the immune system recognizes the vector itself and attacks it as a pathogen.

Quad immunity

By delivering vaccines directly to the mucosal tissue in the GI tract or under the tongue, iosBio’s vaccines not only stimulate a systemic (IgG) antibody immune response, but also a direct mucosal immune response (IgA), which can strike the moment the virus enters the body. Antibodies prevent the pathogen entering the body’s cells, which stops more copies of the pathogen being created. Cytotoxic, or killer, T cells kill infected cells. Memory T cells provide long-term immune ‘memory’ so that the body is ready to attack the pathogen and remove damaged or infected cells in the future.

Removal of the cold chain

OraPro renders vaccines thermally stable, meaning we can deliver an exact dose of the non-replicating virus directly to the GI tract. OraPro’s thermal stability also enables it to be shipped, stored and delivered at room temperatures, overcoming the logistical and economic challenges of global distribution.

Reduced costs of administration

Oral vaccinations do not require administration by a healthcare professional; a tablet can be provided directly to the patient to take at home. This will significantly reduce costs, improve the ease with which vaccines can be delivered to patients in the developing world, and eliminate the risk of needle stick injury.

Comparisons - using Covid-19 as an example



OraPro vaccines are delivered via mucosal cells, which means the same viral vector can be used repeatedly to target different pathogens or mutations. Viral vector vaccines that are delivered via injection can usually be used only once due to anti-vector immunity, in which the immune system recognizes the vector itself and attacks it as a pathogen.


Access

The drawbacks of injection-based vaccines

36%

of world’s population cannot obtain vaccines due to vaccine storage temperatures requirements

OraPro Approach

Removal of cold chain

The OraPro thermal stability platform completely removes the need for refrigeration for storage, thus enabling vaccines to be shipped, stored and delivered at room temperatures, overcoming the logistical and economic challenges of global distribution.

Cost of wastage

The drawbacks of injection-based vaccines

50%

of vaccines are wasted due to temperature excursions and logistics

OraPro Approach

Easily transportable capsules

Because no refrigeration is required to transport OraPro capsules, the distribution process is significantly simpler and cheaper and eliminates potential temperature excursion wastage.

Administration

The drawbacks of injection-based vaccines

62%

of total injection cost is the cost of administration by the healthcare professional

OraPro Approach

No need for healthcare professionals

Oral vaccinations do not require administration by a healthcare professional; a tablet can be provided directly to the patient to take at home. This will significantly reduce costs and improve the ease with which vaccines can be delivered to patients in the developing world.

Perception

The drawbacks of injection-based vaccines

16%

of adult patients avoid flu shots due to needle fear or phobias

OraPro Approach

No more needles

When given an option, 98.7% people preferred oral self-administered vaccine. Thus, OraPro platform will likely enable greater vaccine adoption among populations.



What are viral vectors?
viral vectors?


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Mucosal and
systemic immunity


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The team of doctors and scientists at iosBio believe that the next great leap forward in immunization will be oral delivery


Enabling the fastest and most cost-effective deployment of vaccines the world has ever seen. This is not just a huge leap forward from a humanitarian perspective, oral vaccine technology also represents a significant commercial opportunity.

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