Study Shows Hydroxychloroquine Does Not Prevent COVID-19

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  • Hydroxychloroquine was no better than placebo in preventing COVID-19 symptoms in people who are exposed to the coronavirus, a new study from the University of Minnesota Medical School finds
  • The study involved 821 participants who had close contact with a confirmed COVID-19 patient
  • The participants were sent doses of either hydroxychloroquine or placebo, which they took for two weeks. Being a randomized trial, neither the study particpants nor the researchers knew who was taking placebo or hydroxychloroquine
  • After the two weeks of evaluation, there was no difference in the rate of development of the disease between those who took placebo ansd those who took hydroxychloroquine
  • About 12 percent of participants who took hydroxychloroquine developed COVID-19 symptoms, compared with 14 percent of those who received placebo
  • The study is the first major trial examining the efficacy of hydroxychlorquine as a prophylactic drug against COVID-19