World's First Plan for Pre-pandemic Vaccines

 

Bird Flu NEWS

 

 

Japan set to begin pre-pandemic vaccination

 

Tue Apr 15, 2:07 PM ET

 

Apr 15, 2008 (CIDRAP News) - Japan's health ministry today said it was on the verge of approving a plan to administer prepandemic vaccine to healthcare workers, which would make it the world's first country to tap its national stockpile for this purpose.

 

Kishiko Yamaguchi, an official from Japan's health and welfare ministry, said the plan, which awaits approval tomorrow, would allow the vaccination of about 6,000 quarantine officials and healthcare workers by the end of the year, the Associated Press (AP) reported today.

 

Japan has already approved and stockpiled pandemic vaccines for 10 million people that are based on H5N1 viruses from China, Indonesia, and Vietnam, according to a report today from Reuters. The health ministry said the vaccines were made by the Research Foundation for Microbial Diseases of Osaka University and the Kitasato Institute, the report said.

 

In a November 2005 presentation for the World Health Organization (WHO) that summarized clinical study results for Japan's pandemic vaccine, Masato Tashiro, MD, PhD, with the National Institute of Infectious Diseases in Tokyo, revealed that the project is supported by the government, and the same formulation of the alum-adjuvanted whole-virus vaccine is produced by all of the manufacturers.

 

Yamaguchi told the AP that if initial tests show that the prepandemic vaccine is safe and effective, the ministry would consider vaccinating 10 million more people, including such vital workers as lawmakers, police, and other healthcare workers. Reuters reported that the second vaccination wave would also include those who maintain infrastructure networks such as gas and electricity.

 

International health officials have been cautious about taking steps toward vaccination in advance of a pandemic, because researchers are uncertain if vaccines that are currently in national stockpiles will offer cross-protection against a future pandemic strain. Also, it's not clear if any adverse events would arise from the use of the vaccine, which makes it difficult to weigh the usefulness of the strategy.

 

In a May 2007 bulletin, the WHO acknowledged that as prepandemic vaccines become available they could be used in poultry workers, healthcare workers, and whole populations. However, the WHO did not recommend that countries undertake the strategy.

 

Gregory Hartl, a spokesman for the WHO, told the AP that prepandemic vaccination is "a big roll of the dice" but said the WHO doesn't oppose countries using the vaccines.

 

The European Centre for Disease Prevention and Control in 2007 praised the development of prepandemic vaccines but said it did not support countries using them until the WHO elevates its pandemic phase to 5 or 6 (from the current phase 3), which would indicate significant human-to-human transmission is occurring.

 

Lisa Schnirring  Staff Writer

Wed Apr 16, 7:31 AM ET

A health official disinfecting a poultry farm in western Japan last year after 22 chickens died in a suspected outbreak of bird flu. Japan is to vaccinate thousands of medical workers and officials against bird flu to prepare for a possible pandemic, a health ministry official has said. (AFP/File/Okayama Prefecture Government) (BIRD FLU Pre Pandemic)

 

Japan to vaccinate medical workers against bird flu

 

TOKYO (AFP) - Japan is to vaccinate thousands of medical workers and officials against bird flu to prepare for a possible pandemic, a health ministry official said Wednesday.

 

The ministry will vaccinate about 6,400 people by next March 2009 and plans eventually to expand the programme to about 10 million people including police and military officers, the official said on condition of anonymity.

 

"I believe it would be the world's first plan to vaccinate thousands of people" for a possible outbreak of a new type of flu, he said.

 

Japan has stockpiles of so-called pre-pandemic vaccines for 20 million people.

 

The official said the government will study the effectiveness and side effects of the vaccines, which are expected to be given to volunteers.

 

"Once the effectiveness and safety of the vaccines are known, the government will consider expanding it to a scale of some 10 million people," he said.

 

The H5N1 strain has killed more than 230 people worldwide since late 2003.

 

Experts fear the virus, which is usually spread directly from birds to humans, could mutate into a form easily transmissible between people, sparking a deadly global pandemic.

 

Health minister Yoichi Masuzoe on Tuesday proposed using part of the government's stockpiled vaccines on workers at hospitals or quarantine, customs and immigration offices.

 

The plan was backed Wednesday by a government-appointed panel of experts.

 

"If we obtain good results over its effectiveness and safety, we want to consider vaccinating (an additional) 10 million people who are in medical occupations" or other key jobs such as at utilities, Masuzoe said.

 

The ministry panel also approved plans to increase the vaccine stockpile and to try to shorten to six months the period needed to produce an effective vaccine if a pandemic occurs. It currently takes 18 months.

 

Japan saw several outbreaks of the deadly H5N1 strain in early 2007, leading authorities to kill tens of thousands of chickens as a precaution, but it has reported no human deaths.

Mon May 19, 1:34 AM ET

A health worker culls a chicken at a poultry farm in Bijoy village, about 28 miles west of the northeastern Indian city of Agartala April 24, 2008. European authorities have approved the first pre-pandemic bird flu vaccine, Prepandrix, from GlaxoSmithKline Plc, its maker said on Monday. Europe's biggest drugmaker hopes the move will spur fresh stockpile orders from governments around the world. (Stringer/Reuters) (VACCINES) (BIRD FLU Pre Pandemic)

 

EU licenses first pre-pandemic bird flu vaccine

 

Mon May 19, 1:34 AM ET

 

LONDON (Reuters) - European authorities have approved the first pre-pandemic bird flu vaccine, Prepandrix, from GlaxoSmithKline Plc, its maker said on Monday.

 

Europe's biggest drugmaker hopes the move will spur fresh stockpile orders from governments around the world.

 

Prepandrix is intended for use before or in the early stages of a flu pandemic. It triggers an immune response to the H5N1 strain of bird flu, which experts fear may trigger a widespread human flu outbreak threatening millions of people.

 

The official license from the European Commission puts Glaxo ahead of rivals in the vaccine race. The green light had been expected, following a positive recommendation from experts at the European Medicines Agency in February.

 

So far, Glaxo has received orders for Prepandrix from a handful of governments, including the United States, Switzerland and Finland. In 2007, it sold 146 million pounds ($284 million) of its pre-pandemic vaccine and bulk antigen.

 

Now Glaxo's flu vaccine head Emmanuel Hanon expects more buyers to follow, justifying the $2 billion his company has invested in increasing flu capacity.

 

"It's clear that some governments are more proactive than others ... the policy is evolving and I'm looking for some kind of alignment in terms of what governments are going to do," he told reporters.

 

 "Governments are concerned by the real medical and economic threat of a pandemic."

 

MASS IMMUNISATION

 

Glaxo sees governments, rather than the private sector, as the prime market for its new vaccine because of the need to coordinate mass immunization programs.

 

 It has previously announced plans to donate 50 million doses of the pre-pandemic vaccine to the World Health Organisation.

 

Other drugmakers including Sanofi-Aventis and Novartis AG are also working on bird flu vaccines and industry analysts say such products may represent a $1 billion-plus sales opportunity for such companies.

 

Glaxo's vaccine should give a degree of protection until a more precisely tailored pandemic vaccine can be produced -- a process likely to take four to six months from the time any pandemic strain is identified.

 

Tests have shown that Prepandrix protects against H5N1 variants currently circulating in Asia, Europe and Africa.

 

The new vaccine contains a special additive, or adjuvant, which allows a very low dose of active ingredient to be used in each shot.

 

A key challenge in producing a vaccine for millions of people around the world is how to make the maximum number of shots from the minimum amount of antigen, or active ingredient.

 

While H5N1 remains mainly a virus affecting birds, scientists say it is the most likely source of the next global flu pandemic in humans, since it may soon mutate into a form that is easily transmitted from person to person.

 

So far, most human cases can be traced to direct or indirect contact with infected birds. The H5N1 virus has killed around 240 people since 2003.

 

By Ben Hirschler

(Editing by Jason Neely)

Mon May 19, 8:09 AM ET

LONDON - The media pandemic may have died down, but GlaxoSmithKline is betting that the threat of an actual bird flu pandemic is still real enough for governments across Europe. (VACCINES) (BIRD FLU Pre Pandemic) (BIRD FLU PANDEMIC)

 

Bird Flu Not Forgotten By GlaxoSmithKline

 

Mon May 19, 8:09 AM ET

 

LONDON - The media pandemic may have died down, but GlaxoSmithKline is betting that the threat of an actual bird flu pandemic is still real enough for governments across Europe.

 

The pharmaceutical company said on Monday it had secured European approval for the first pre-pandemic vaccine against the dreaded H5N1 virus, more commonly known as bird flu, which began to gain notoriety five years ago.

 

Although there is no sign yet of the much-heralded worldwide bird flu pandemic, largely because H5N1 has still failed to transmit itself effectively from human to human, Glaxo's product offers governments the chance to stockpile the vaccine just in case.

 

Shares in GlaxoSmithKline rose 20 pence (39 cents), or 1.8%, to £11.59 ($22.63), on Monday afternoon in London. The approval is the latest in a string of small positives for the British company, which also got European approval for lung cancer drug Hycamtin earlier this month.

 

"I don't think there will be a big sales boost," said Thomas Brenning, analyst with BayernLB. He said the bird flu media frenzy had died down somewhat, and that stockpiling the vaccine might not be seen as being in the public's interest anymore.

 

Furthermore, there are doubts as to how effective stockpiling pre-pandemic treatments can be. If a pandemic breaks out that involves a strain different from H5N1, say H6, or H7, the vaccine is likely to be useless.

 

"If governments, in taking a public health decision based on sound risk assessments, believe they should stock H5N1 vaccine, we would not disagree with that," said a spokesman for the World Health Organization on Monday.

 

But he added that there was "no guarantee" that the next pandemic would be an H5N1 pandemic, a fact which could cast serious doubt on the effectiveness of stockpiling the vaccine.

 

A spokesperson for GlaxoSmithKline said that the company believed an eventual pandemic would involve a strain in the H5N1 family, and that a pre-pandemic treatment would save the four-to-six-month delay of having to react to an official pandemic announcement. "The U.K. government could buy it tomorrow and vaccinate us tomorrow," she said.

 

Finland, Switzerland and the United States all placed orders for Glaxo's H5N1 vaccine totaling £146 million ($285.1 million), in 2007.

 

Forbes

by Lionel Laurent,

Mon May 19, 7:45 PM ET

An Indian health worker carries out a chicken cull after an outbreak of bird flu in the village of Sukna on the outskirts of Siliguri on May 11. British pharmaceutical firm GlaxoSmithKline has said that the European Commission has granted the first licence to market a vaccine in preparation for a pandemic of H5N1 bird flu in Europe.(AFP/File/Diptendu Dutta) (VACCINES) (BIRD FLU Pre Pandemic)

 

First EU licence granted for pre-pandemic bird flu vaccine: GSK

 

LONDON (AFP) - The European Commission has granted the first licence to market a vaccine in preparation for a pandemic of H5N1 bird flu in Europe, British pharmaceutical firm GlaxoSmithKline said on Monday.

 

The ruling from the European Medicines Agency (EMEA) allows GSK to sell Prepandrix, which targets the most virulent strain of the virus that can be fatal to humans, in all 27 European Union member states.

 

"This vaccine marks a significant step in the world's ability to cope with an influenza pandemic," GSK chief executive Jean-Pierre Garnier said.

 

The company said the vaccine is based on the strain of H5N1 currently circulating, which the World Health Organisation said on April 30 has killed 241 people, mainly in southeast Asia, since 2003.

 

Prepandrix is based on the Vietnam strain and been found to be effective in preventing death in 96 percent of cases, it added.

 

GSK said it had already signed contracts for the pre-pandemic vaccine with the United States and Switzerland plus a number of EU countries such as Finland.

 

A number of other drug firms, such as Switzerland's Novartis and France's Sanofi Aventis, have been working on bird flu vaccines, amid fears that a mutation of the virus could cause widespread outbreaks in humans.

 

Pre-pandemic vaccines are produced before a pandemic using currently circulating strains and provide immunisation against disease until a pandemic vaccine using the specific strain is created.

 

The EMEA's decision was expected after it said on February 22 that it had granted a "positive opinion" on Prepandrix and the pandemic vaccine Pandemrix.

Tue May 20, 11:15 PM ET

Brussels, May 20: The European Union has granted licence to a British company to market a human pre-pandemic bird flu vaccine, called Prepandrix, in all 27-member European Union countries, the EurActiv news portal reported Tuesday. (BIRD FLU Pre Pandemic) (VACCINES)

 

EU approves human pre-pandemic bird flu vaccine called Prepandrix

 

 

Brussels, May 20: The European Union has granted licence to a British company to market a human pre-pandemic bird flu vaccine in all 27-member European Union countries, the EurActiv news portal reported Tuesday.

 

Although no cases of human-to-human transmission of the deadly H5N1 strain of bird flu have been reported, scientists fear the virus could mutate into a strain that could pass easily between people, causing a global pandemic.

 

The vaccine, developed by GlaxoSmithKline PLC and called Prepandrix, is a mix of antigens from currently circulating virus strains, and is aimed at offering protection against bird flu ahead of a major outbreak.

 

Tests of the vaccine have been conducted in 400 adults aged between 18 and 60 since the fall of 2006, and showed at least a four-fold increase in serum neutralizing antibodies in 77 percent to 85 percent of subjects against three distinct H5N1 strain variants.

 

The European Medicines Agency believes that Prepandrix "will provide a clinically useful degree of cross-protection against the strain that causes the next pandemic," EurActiv reported.

 

However, scientists maintain that the large-scale commercial production of a true pandemic vaccine is unlikely to start before the virus mutates into its pandemic strain.

 

According to the World Health Organization, avian influenza has so far killed 241 people out of 382 confirmed cases worldwide.

 

GlaxoSmithKline intends to donate 50 million doses of Prepandrix to the World Health Organization for distribution to the world's poorest countries.

Thu May 22, 10:45 AM ET

SCOTTSDALE, Ariz. eFoodSafety.com, Inc. applauds the European Commission's marketing authorization in the European Union of GlaxoSmithKline's H5N1 pre-pandemic bird flu vaccine Prepandrix™. eFoodSafety, which is also dedicated to developing solutions aimed at combating the virulent H5N1 strain of bird flu, commends the European Commission for raising global awareness of the influenza pandemic and allowing for the advancement of technologies designed to address potential human threats relating to this deadly virus. (BIRD FLU Pre Pandemic)

 

eFoodSafety Endorses the European Commission's Marketing Authorization of GlaxoSmithKline's Pre-Pandemic Bird Flu Vaccine

 

SCOTTSDALE, Ariz. eFoodSafety.com, Inc. applauds the European Commission's marketing authorization in the European Union of GlaxoSmithKline's H5N1 pre-pandemic bird flu vaccine Prepandrix™.

 

eFoodSafety, which is also dedicated to developing solutions aimed at combating the virulent H5N1 strain of bird flu, commends the European Commission for raising global awareness of the influenza pandemic and allowing for the advancement of technologies designed to address potential human threats relating to this deadly virus.

 

The company's proprietary product, Citroxin™, an environmentally safe sporicidal product formulated entirely of food-grade components, has shown 68% efficacy in eradicating the H5N1 strain of bird flu in chick embryos.

 

"The European Commission's marketing approval of GlaxoSmithKline's Prepandrix signifies tremendous progress in global efforts to fight bird flu in humans," says Patricia Gruden, CEO of eFoodSafety.

 

"eFoodSafety has been committed to eradicating the avian flu through its development of Citroxin and we have long believed that H5N1 should be addressed in order to prevent a potential pandemic.

 

This week's news further supports our contention that bird flu is a global social health concern, and that, given the proper solutions, we can mitigate potential risks to humans."

 

A World Health Organization (WHO) action plan notes that over the past decade H5N1 has successfully "crossed the species barrier" from animals to humans, a shift that it considers "[poses] an imminent pandemic threat.

 

" The several hundred human cases of H5N1 since 2003 have often resulted in fatality; as the number of cases continues to increase, countries around the world are spending more money to help avoid a global pandemic.

 

As reported by the Wall Street Journal, Switzerland and Finland have already placed orders for GSK's vaccine, and other countries are considering the same, in order to amass a cautionary supply in the event of an outbreak or pandemic.

 

The World Bank projects that costs associated with fighting avian flu will range between $1.2 and $1.5 billion by 2009.

 

In addition to the human implications of the virus, bird and farm animals are also at risk of infection.

 

As an early entrant in the market, eFoodSafety recognizes potential to use its Citroxin formula in the mass market as a solution against the virulent influenza.

 

After positive initial results for Citroxin's ability to eradicate H5N1 in chick embryos, eFoodSafety has planned to conduct additional rounds of testing in live animals affected with forms of flu that closely resemble human strains of the disease.

 

The company's initial tests were conducted at Chulalongkorn University in Thailand, one of only two labs in Asia that is used by the U.S. Centers of Disease Control to conduct research on treatments of H5N1.

 

Subsequent rounds of testing are planned by the company to be conducted at a university in the United States that has been nationally recognized for its field studies in bird flu.