Yes, studies show that Truvada for PrEP, when used consistently, works for HIV prevention for heterosexual woman and men.
Curious to know more about the research?
- The Partners PrEP study looked at Truvada or Viread alone compared with a placebo in more than 4,500 heterosexual men and women in Kenya and Uganda who were in couples where one partner was HIV positive and the other was HIV negative (what scientists call “serodiscordant” couples). Focusing just on the men and women assigned to take Truvada, the researchers found a reduction in new infections of up to 75%. In those with detectable drug in their blood, it looked like PrEP cut infections by at least 90%. Again, good adherence mattered.
- A similar smaller study in Botswana, called TDF2, looked at Truvada compared with a placebo in more over 1,200 heterosexual men and women found similar rates of efficacy as Partners PrEP. For participants who were assigned to take Truvada, risk of HIV infection dropped by around 62%.