Related Experiment Video
Updated: Mar 29, 2026

Prediction of HIV-1 Coreceptor Usage Tropism by Sequence Analysis using a Genotypic Approach
Published on: December 1, 2011
The European preexposure prophylaxis revolution
Gus Cairns1, Sheena McCormack, Jean-Michel Molina
1aNAM Publications/Aidsmap.com, London, UK bEuropean AIDS Treatment Group, Brussels, Belgium cMedical Research Council Clinical Trials Unit at UCL, University College London, London, UK dINSERM U941, University of Paris Diderot, Sorbonne Paris Cité eDepartment of Infectious Diseases, Hôpital Saint Louis, APHP, Paris, France.
Pre-exposure prophylaxis (PrEP) significantly reduced HIV incidence in European trials for men who have sex with men and transgender women. Implementation is urgently needed, despite regulatory hurdles and varied healthcare services across Europe.
Area of Science:
- Public Health
- Epidemiology
- HIV Prevention
Background:
- The European HIV epidemic disproportionately affects key populations, including men who have sex with men (MSM) and transgender women.
- Existing HIV prevention strategies require enhancement to address the ongoing transmission rates.
- The transition of pre-exposure prophylaxis (PrEP) from clinical trials to routine practice presents implementation challenges.
Purpose of the Study:
- To review the European HIV epidemic context.
- To analyze the challenges in integrating pre-exposure prophylaxis (PrEP) into routine clinical practice.
- To evaluate the effectiveness of oral PrEP in European trials.
Main Methods:
- Analysis of data from two European clinical trials of oral PrEP (tenofovir/emtricitabine).
- Comparison of HIV incidence in trial participants versus anticipated incidence based on surveillance data in MSM.
- Review of current HIV prevention services and regulatory landscapes in European Member States.
Main Results:
- Oral PrEP (tenofovir/emtricitabine) demonstrated high and consistent reduction in HIV incidence among gay and other MSM and transgender women.
- HIV incidence in the control groups was unexpectedly high, indicating a significant unmet need for effective prevention.
- Gilead has not yet submitted a marketing authorization application for TDF/FTC as PrEP in Europe.
Conclusions:
- There is an urgent need to make PrEP accessible to key populations in Europe as a vital additional prevention tool.
- Despite the lack of specific regulatory approval for PrEP, some countries are already utilizing TDF/FTC for post-exposure prophylaxis.
- European Member States must identify key populations and integrate PrEP services within comprehensive prevention packages, considering diverse healthcare delivery models.
Related Concept Videos
Preclinical Development: Overview
Electroconvulsive Therapy
Preparedness and Phobias
Pharmacokinetic–Pharmacodynamic Relationship: Exposure, Response and Effect
Transmission-based Precautions I: Contact, Enteric, and Droplets
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Sexually Transmitted Infections

