Swine flu vaccine ‘promising’, says EU agency

Early clinical trial results show swine flu vaccines now being rushed through development produce a strong immune response, suggesting they should work well, the head of Europe’s drugs watchdog said on Thursday.

Governments in Europe have started to take delivery of shots against pandemic H1N1 swine flu, but are awaiting a licence from European authorities before they can start mass vaccinations.

”It seems to be quite promising,” Thomas Lonngren, executive director of the European Medicines Agency (EMEA), told a news briefing.

”The immune response to all these vaccines is a very high response, whatever type of vaccine it is, whether it is adjuvanted or non-adjuvanted,” he added.

Adjuvants are immune-stimulating compounds added to vaccines to boost their effectiveness.

The strength of the immune response is important in determining not just that the vaccines work but how many doses people will need.

Because swine flu is a new strain, many infectious disease experts have been expecting people will need two doses to get full immunity against the virus.

However, Novartis said last week that a single dose of one of its experimental vaccines appeared to protect against the virus, raising hopes that potentially tight supplies could go further when mass immunisation gets under way.

Lonngren said the finding from Novartis was encouraging and preliminary results from other companies in recent days painted a similar picture of a strong immunogenicity with a range of different types of shot.

One shot or two?
The issue of whether one or two doses is needed will be evaluated in the light of the clinical trial data that are still coming in, he added.

The EMEA’s expert committee on new medicines will consider the first three H1N1 swine flu vaccines from GlaxoSmithKline, Novartis and Baxter — called Pandemrix, Focetria and Celvapan — its next meeting on September 21 to 24.

If all goes well, the first swine flu vaccines could be licensed in Europe early in October.

”It will be up to the committee to discuss whether we know enough that we could recommend one or two doses, and of course the most difficult thing for the committee to discuss will be recommendation or non-recommendation for pregnant women and children,” Lonngren said.

So far, swine flu vaccines have only be tested in healthy adult volunteers. But many healthcare experts believe children and pregnant women should get priority immunisation.

Following a recommendation from the EMEA, the shots will still have to get a green light from the European Commission, a process that is expected to take 10 to 20 days under the accelerated approval system for pandemic vaccines. — Reuters

We make it make sense

If this story helped you navigate your world, subscribe to the M&G today for just R30 for the first three months

Subscribers get access to all our best journalism, subscriber-only newsletters, events and a weekly cryptic crossword.”

Ben Hirschler
Ben Hirschler works from London. Former #Reuters global pharmaceuticals correspondent in London. Now freelance writer and consultant. Ben Hirschler has over 20034 followers on Twitter.

Related stories


Already a subscriber? Sign in here


Latest stories

A female condom can take sexual pleasure to new heights

Internal condoms not only offer protection, they increase the user’s control and the rings tickle the clitoris and penis

Russia’s invasion of Ukraine could be firestarter of global economic...

Developed countries could do much to help counterparts in the developing world weather the current storm

Zuma corruption trial on hold as court waits for word...

The Pietermaritzburg high court was surprised by the delay in Bloemfontein but said it would likely not be the last

SA’s endemic corruption requires a ‘biting’ response

Beneficial ownership transparency (BOT) can help tackle corruption, reduce investment risk and improve national and global governance, but implementation remains ‘a sad story’

press releases

Loading latest Press Releases…