New strategies to prevent HIV

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The 9th IAS Conference on HIV Science (IAS 2017) will showcase the latest developments in HIV prevention science, including PrEP on demand, community-based testing, and strategies to meet the needs of key populations affected by HIV. Scientific highlights include:

  • New analysis of the IPERGAY trial, evaluating PrEP on demand among men who have sex with men less frequently or who engage in “chemsex”
  • Estimates of time of infection to determine whether migrants are acquiring HIV before or after migration
  • Results from antiretroviral intensification to prevent mother-to-child transmission among late-presenting women with HIV
  • Correlations between LGBT inclusion in school-based sex education and education on HIV prevention
  • Evidence of the need for tailored prevention services for pregnant sex workers
  • Findings from an internet-based self-testing intervention among men who have sex with men
  • A study of treatment as HIV prevention among adolescents
  • Results from a study of rapid tests to prevent mother-to-child transmission of hepatitis B
  • Recent findings on the association between sexually transmitted infections and long-acting reversible contraception
  • Insights from a community-based testing programme for young women to increase diagnoses and identify candidates for PrEP


Programme highlights

On-demand oral TDF/FTC for PrEP: Is it an option?
This session reviews the current evidence for on-demand PrEP, from animal models to pharmacokinetics (PK), and summarizes recent data among men who have sex with men; at the same time, it addresses current knowledge gaps to encourage future research, particularly among heterosexual men and women.

Fast-track cities: Ending AIDS by 2030 in cities and municipalities with a high HIV burden
Since World AIDS Day 2014, more than 200 “fast-track cities” around the world have committed to accelerate and scale up their AIDS responses. Many cities and municipalities have made significant progress, which health department and clinician representatives from Amsterdam, Atlanta, Nairobi, Bangkok, and São Paulo highlight during this session.

HIV in migrant communities
Within a broader context of sexual risk-taking and human rights, this multi-perspective session discusses the issues pertaining to migrants and their role in the HIV epidemic.

Tuberculosis in Europe: The impact of migration
This workshop addresses the epidemiological and clinical aspects of TB in Europe, with a special focus on the impact of migration in this regional epidemic and on the specific situation in Eastern Europe.

How to assess the efficacy of new strategies for the prevention of HIV infection
This workshop focuses on the challenges of designing studies to assess the efficacy of new prevention strategies (PrEP, vaccines, antibodies) in humans. Due to the high efficacy of oral PrEP with TDF/FTC when adherence is appropriate and due to the need to assess multiple drugs/vaccines and modes of delivery, large non-inferior randomized trials will take years to provide results and will require significant funding.

HIV and sexually transmitted infections (STIs): The terrible lovers
This symposium reviews the epidemiology of STIs over the last 50 years and into the era of antiretroviral use for HIV prevention, addressing the role of STIs in facilitating HIV acquisition, and discussing new strategies for STI testing.

Plenary sessions on HIV prevention
Clinical epidemiologist Sheena McCormack (United Kingdom) on putting the drugs in the ABC of prevention; health economist Sandra G Sosa-Rubí (Mexico) on economic incentives for HIV prevention in Latin America; assistant professor of paediatrics Nadia Sam-Agudu (Nigeria) on what it will take to end paediatric HIV.


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