HomeNewsBusinessGilead targets remdesivir supply for two million COVID-19 patients by year-end

Gilead targets remdesivir supply for two million COVID-19 patients by year-end

Gilead Sciences has said it hopes to start trials in August of an easier-to-use inhaled version of remdesivir, currently administered only intravenously.

June 23, 2020 / 07:35 IST
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Representative image
Representative image

Gilead Sciences Inc said on June 22 it expects to be able to supply enough of its antiviral drug remdesivir by year end to treat more than two million COVID-19 patients, more than double its previous target of one million.

The company also said it hoped to start trials in August of an easier-to-use inhaled version of the medicine, currently administered only intravenously.

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Remdesivir is at the forefront in the fight against the virus after the drug helped shorten hospital recovery times in a clinical trial. It was granted emergency use authorization in the United States and full approval in Japan.

But producing and supplying billions of doses remain major concerns as the fast-spreading virus that has infected over 9 million people globally threatens to overwhelm healthcare systems around the world.

COVID-19 Vaccine
Frequently Asked Questions

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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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