The first Philippine-made anti-rabies serum (ARS) is expected
to become commercially available by the first half of 2007
as Servac Philippines Corp. (SPC) has secured a P200-million
venture capital from an established local infrastructure investor.
It will take six to eight months from the release of the
fund to establish the facilities to be set up by SPC in Gingoog
City, Misamis Oriental. It will have a capacity of 400,000
doses per year and will be a Good Manufacturing Practice
(GMP)-certified facility.
While refusing to identify the venture capitalist, SPC President
and Chief Executive Officer Danilo P. Manayaga said the investor
has wide exposure in Philippine business, mainly in infrastructure
and power generation.
"The venture capital will finance the whole package.
We no longer need to get a DBP (Development Bank of the Philippines)
loan," Manayaga said in an interview.
The technology will substitute for the country’s importation
of anti-rabies vaccine as soon as the SPC facility complies
with the quality standards set for pharmaceutical manufacturers
by the World Health Organization (WHO) and the Bureau of
Food and Drug.
"WHO foresees a permanent global shortage and high
prices of rabies immunoglobulin. That’s why it encourages
local production of ERIG (equine rabies immunoglobulin)," he
said.
The Philippines currently imports anti-rabies vaccine from
Korea, US, France and other European countries.
Once SPC starts commercial production, the Philippines can
also export the product to China, India, Africa, and Latin
America whose death rate from rabies infection are among
the highest in the world.
With the fund, SPC will beef up its horse inventory to at
least 200 horses. At a 400,000 dose capacity, the ARS facility
will import substitute a P2-billion worth of vaccine even
as vaccine treatment now costs P5,000 per case. The Department
of Health’s (DoH) Research Institute for Tropical Medicine
(RITM) earlier approved SPC’s ARS technology.
It has earlier been tested for efficacy, purity, animal
assay (potency, safety, pyrogenecity), microbiology, and
virus detection (Elisa).
The ARS also went through pre-clinical tests done in 2004
including an animal challenge study looking at survivorship
and anti-body decay. A clinical trial assessed its safety
(anaphylactic reactions or serum sickness) and simulated
post-exposure prophylaxis (safety and anti-body profile).
Officials at the DOH and the University of the Philippines’ (UP)
Microbial Immunology department are also seeing SPC’s
technology as applicable in other pharmaceutical products
such as the potential edible vaccine for salmonella, the
typhoid fevercausing bacteria which is now being studied
at UP Manila.
This is also useful for hepatitis B vaccine or influenza
vaccine. The ARS, which basically comes from antibodies produced
by horses, was accidentally developed as the family of Manayaga,
a chemical engineer, has been into the local distribution
of a protein purification system which is useful for the
vaccine’s manufacturing.
The purification system, called chromatography, involves
an equipment that can produce highly-purified proteins compared
to the process of precipitation used traditionally in purification.
Chromatography is also used in anti-cancer drugs, insulin,
and recombinant genetically-engineered products.
This technology, developed in Sweden and produced by GE
Healthcare Biosciences, also produces ARS at a faster rate
which is five times more than traditional systems.