Scientists have identified six drug candidates from more than 10,000 compounds that may help treat COVID-19. The research, published in the journal Nature, tested the efficacy of approved drugs, drug candidates in clinical trials and other compounds.
“Currently there are no targeted therapeutics or effective treatment options for COVID-19,” said Professor Luke Guddat from the University of Queensland in Australia.
“In order to rapidly discover lead compounds for clinical use, we initiated a programme of high-throughput drug screening, both in laboratories and also using the latest computer software to predict how different drugs bind to the virus,” Guddat said.
The project targeted the main COVID-19 virus enzyme, known as the main protease or Mpro, which plays a pivotal role in mediating viral replication, the researchers said. This makes it an attractive drug target for this virus, and as people don’t naturally have this enzyme, compounds that target it are likely to have low toxicity, they said.
“We add the drugs directly to the enzyme or to cell cultures growing the virus and assess how much of each compound is required to stop the enzyme from working or to kill the virus. If the amount is small, then we have a promising compound for further studies,” said Guddat.
After assaying thousands of drugs, researchers found of the six that appear to be effective in inhibiting the enzyme, one is of particular interest. (The Nation)
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