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Last Updated : Sep 25, 2020 07:59 PM IST | Source: Reuters

AstraZeneca gets partial immunity in low-cost EU vaccine deal

The deals reflect different strategies by two of the world's top drugmakers for protecting themselves as a debate rages about liabilities for vaccines aimed at ending the pandemic.

Reuters

European governments will pay claims above an agreed limit against AstraZeneca over side-effects from its potential COVID-19 vaccine, under different terms to a deal struck with Sanofi, an EU official told Reuters.

The deals reflect different strategies by two of the world's top drugmakers for protecting themselves as a debate rages about liabilities for vaccines aimed at ending the pandemic.

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AstraZeneca has secured the European Union's backing in a confidential agreement which reflects the lower price sought by the British drugmaker, the official said.

COVID-19 Vaccine

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.

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"If a company asks for a higher price we don't give the same conditions," said the official, who was involved in the talks but declined to be identified as the contracts are confidential.

Unexpected side-effects after a drug has regulatory approval are rare, but the speed at which a COVID-19 vaccine is being pursued increases the risks of unforeseen conditions.

The deal with AstraZeneca, which shifts some of the risks involved in the roll-out of a vaccine to taxpayers, was struck in August and its liability clauses have not previously been reported.

Under the deal, AstraZeneca would only pay legal costs up to a certain threshold, the official said, declining to elaborate on how the costs would be shared with individual European governments or the cap.

The financial shield would cover both legal costs and potential compensation, which is rarer but potentially a much bigger outlay in the event of something going wrong.

In return for the higher price paid for its vaccine, French drugmaker Sanofi, which is working with GlaxoSmithKline as a partner, did not get any liability waiver.

Spokespeople for AstraZeneca, Sanofi and the European Commission declined to comment on the specifics of the deals.

When asked about AstraZeneca's relatively low price, a spokesman reiterated the company's pledge to share the vaccine widely and not to turn a profit from it during the pandemic.

Under the AstraZeneca deal, EU countries have agreed to pay 2.5 euros ($2.92) per dose, while Sanofi has negotiated a price at around 10 euros, the official said.

SIDE-EFFECTS

As part of the supply deals, the only two sealed so far by Brussels, the EU has also made a non-refundable downpayment of 336 million euros to AstraZeneca to secure 400 million doses, proportionately lower than the 324 million euros it paid to Sanofi to secure 300 million doses.

The EU official told Reuters that the contract with AstraZeneca included a narrow definition of side-effects that could limit the possibility of claiming compensation although the company remains liable for its vaccine.

The deal with AstraZeneca was negotiated before it paused late-stage trials of its vaccine candidate this month after a British volunteer developed neurological symptoms. Trials have resumed in Britain but not in the United States.

EU governments would share compensation costs only if unexpected side-effects emerged after the AstraZeneca vaccine was approved.

Liability has been a key stumbling block in talks with other COVID-19 vaccine makers, EU officials have said, as companies fear they risk larger legal costs than they usually face when vaccines are developed in much longer trials.

A European Commission spokesman said advance purchase deals "provide for member states to indemnify the manufacturer for certain liabilities incurred under specific and strict conditions", but "liability still remains with the companies".

This means it would be the firm's responsibility to defend its shot in the courts.

Drugmakers have called on EU regulators to set up a Europe-wide compensation scheme, while patients' organisations are calling for an EU-wide fund financed by pharmaceutical firms that would compensate for unexpected side-effects.

The EU legal regime is among the least favourable to drugmakers on compensation claims, although plaintiffs have rarely managed to win as the law requires them to prove the link between an illness and a vaccine that may have caused it.

The United States has granted immunity from liability for COVID-19 vaccines that receive regulatory approval.

Meanwhile, Russia has said it would shoulder some of the legal liability should anything go wrong with the vaccine developed by Moscow's Gamaleya Institute.
First Published on Sep 25, 2020 02:45 pm
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