Written Comments to FDA Advisory Committee Cite Compelling Evidence for PrEP and Urgent Need for Every Available Tool to End AIDS
In public comments submitted this week, a group of 14 leading HIV/AIDS and health organizations stated their support for Food and Drug Administration (FDA) approval of emtricitabine/ tenofovir disoproxil fumarate (TDF/FTC or Truvada®) as pre-exposure prophylaxis (PrEP) to prevent HIV infection in adult men and women. Their comments, submitted in advance of a May 10 FDA Advisory Committee meeting, pointed to compelling evidence on the efficacy of TDF/FTC as PrEP and highlighted the unique potential of this intervention to help slow the HIV epidemic in the U.S.
With PrEP, HIV-negative individuals who are at risk for HIV take anti-HIV medications in order to reduce their chances of becoming infected if exposed to the virus. At the May 10 hearing, the FDA will consider data from clinical trials showing that TDF/FTC reduced the risk of sexual transmission of HIV in populations including men who have sex with men (MSM) and heterosexual women and men.
"The U.S. and international AIDS community overwhelmingly supports FDA's priority review of this potentially game-changing new tool to prevent HIV," said Mitchell Warren, executive director of AVAC. "The evidence is increasingly clear that daily PrEP can help reduce HIV risk in women and men who take it consistently as prescribed. While no single tool will be enough to stop the spread of HIV, PrEP could be a vital part of a comprehensive, global strategy to end the AIDS epidemic."
Despite some progress in reducing HIV incidence using other available methods, approximately 50,000 people become newly infected with HIV every year in the United States, and 2.6 million people were newly infected with HIV worldwide in 2010. Globally, half of all people infected with HIV are women and girls. In the United States, HIV infection continues to take a disproportionate toll on African Americans and Latinos; MSM, including transgender individuals; and the poor. Driving down HIV infection rates is a primary objective of the U.S. National HIV/AIDS Strategy, and is at the core of global efforts to end the AIDS epidemic.
"Today's HIV prevention tools, including condoms, remain as essential as ever, but it's clear that they aren't enough," said Deborah Cohan of the Bay Area Perinatal AIDS Center. "If approved, PrEP would help address important gaps, including the need for women to have more ways to protect themselves without having to rely on their male partners."
"Evaluation of new prevention tools is critical to reducing the devastating impact of HIV among Black Americans," said Douglas Brooks, MSW, Senior Vice President of the Justice Resource Institute. "No single approach will be right for everyone, but PrEP could offer a much needed option for some. The benefits could be especially great for Black gay or bisexual men, who account for nearly one-quarter of new HIV infections in our nation today."
Modeling studies have shown that widespread access to PrEP could reduce new HIV infections, and thus the scale of the global HIV epidemic, substantially around the world. The FDA's decision on TDF/FTC as PrEP could help pave the way for global health funders and developing countries to step up their planning for implementation.
Evidence for PrEP: What the Science Tells Us
At the May hearing, an FDA Advisory Committee will consider data from a wide range of safety and efficacy studies, including two pivotal clinical trials of TDF/FTC as PrEP: