Guardian: Taking hydroxychloroquine does not protect people who have been close to someone with coronavirus from becoming infected, a study suggests.
Donald Trump told the world he was taking one pill a day to safeguard himself against the coronavirus, on the advice of his doctor. However, a study published in the New England Journal of Medicine suggests the drug is no more effective in protecting people exposed to the virus than a placebo.
The trial, which was carried out in the USand Canada, recruited people who were at moderate to high risk of contracting Covid-19. Most of them were deemed at high risk because they had been closer than 2 metres from somebody with the virus for more than 10 minutes without wearing any personal protective equipment. The hope was that the drug could be used to protect people where somebody in their family was infected.
This was a randomised, controlled trial – the so-called “gold standard” – and was set up to compare what happened in people given hydroxychloroquine within four days of exposure and those given dummy pills instead.
The researchers enrolled 821 mostly younger and healthy adults with an average age of 40 who had no symptoms at the time. Within four days of exposure, each received a delivery from a courier of a package containing either placebo or hydroxychloroquine. The pills were to be taken over five days, starting with a stronger dose on day one. read more…