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2010

PrEP
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PrEP

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On November 23, 2010, researchers published the results of the iPrEx trial in The New England Journal of Medicine. The study, coordinated by the Gladstone Institutes, followed 2,499 gay and bisexual men and transgender women in six countries, half of whom took a daily pill combining two HIV drugs, emtricitabine and tenofovir, while the other half took a placebo. The pill reduced the risk of HIV infection by about 44 percent overall, and by about 73 percent among those who took it on at least 90 percent of days; 36 people taking the pill became infected, compared with 64 taking the placebo. It…

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PrEP

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2010

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2026

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San Francisco, CA

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NEJM

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On November 23, 2010, researchers published the results of the iPrEx trial in The New England Journal of Medicine. The study, coordinated by the Gladstone Institutes, followed 2,499 gay and bisexual men and transgender women in six countries, half of whom took a daily pill combining two HIV drugs, emtricitabine and tenofovir, while the other half took a placebo. The pill reduced the risk of HIV infection by about 44 percent overall, and by about 73 percent among those who took it on at least 90 percent of days; 36 people taking the pill became…


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PrEP

On November 23, 2010, researchers published the results of the iPrEx trial in The New England Journal of Medicine. The study, coordinated by the Gladstone Institutes, followed 2,499 gay and bisexual men and transgender women in six countries, half of whom took a daily pill combining two HIV drugs, emtricitabine and tenofovir, while the other half took a placebo. The pill reduced the risk of HIV infection by about 44 percent overall, and by about 73 percent among those who took it on at least 90 percent of days; 36…

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2010

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2026

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NEJM

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San Francisco, CA

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PrEP

On November 23, 2010, researchers published the results of the iPrEx trial in The New England Journal of Medicine. The study, coordinated by the Gladstone Institutes, followed 2,499 gay and bisexual men and transgender women in six countries, half of whom took a daily pill combining two HIV drugs, emtricitabine and tenofovir, while the other half took a placebo. The pill reduced the risk of HIV infection by about 44 percent overall, and by about 73 percent among those who took it on at least 90 percent of days; 36 people taking the pill became infected, compared with 64 taking the placebo. It was the first study to show that pre exposure prophylaxis, PrEP, could reduce HIV risk in people.


Tenofovir, one of the two drugs in the pill, was developed by Gilead Sciences from antiviral research at the Institute of Organic Chemistry and Biochemistry in Prague. It was approved to treat HIV on October 26, 2001, and in August 2004 Gilead combined it…

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San Francisco, CA
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NEJM
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