| Signed Networks | Mental/Brain Health | Epidemics |
| Cambridge Elements | PP-IMPACT FIND-PREP |
Ongoing Funded Projects
Dynamics and outbreak control priorities in different sorts of Care Homes submission
- Leading PIs: Andreia Sofia Teixeira and Istvan Kiss
- Funder: UKHSA
- Total Funding: 23,991.32£
PP-IMPACT – Improving PrEP policies for MSM in Portugal and France through causal inference and data-driven modeling
Over the past 15 years, pre-exposure prophylaxis (PrEP) has proven highly effective in preventing HIV among men who have sex with men (MSM), though its uptake and effectiveness vary widely due to compliance and access differences. While France has seen substantial adoption—with 72% awareness and nearly 100,000 initiations—Portugal remains among the lowest in Western Europe, with only 4,500 users in 2022. Concerns that PrEP leads to riskier sexual behavior and reduced condom use, potentially driving increases in sexually transmitted infections and antibiotic resistance, continue to hinder its expansion despite mixed evidence and a lack of causal studies, particularly in Portugal. This project will address these gaps by leveraging a large Portuguese MSM cohort managed by GAT and the French ANRS PREVENIR cohort to disentangle causal pathways between PrEP uptake and behavioral change using advanced causal inference methods. Findings will inform a stochastic, spatially explicit agent-based model to evaluate the long-term effectiveness and cost-effectiveness of current and alternative PrEP policies, including behavioral interventions. The results will support GAT’s advocacy for equitable PrEP guidelines in Portugal and provide evidence-based guidance for PrEP policy decisions in France, where behavioral responses to PrEP use are known to be complex and heterogeneous.
Leading PI: Eugenio Valdano (INSERM)
Co-PI: Andreia Sofia Teixeira (Network Science Institute/NUL)
Co-PI: Paula Meireles (ISPUP)
Total Funding: 95 212,80 € (funded by ANRS)
Past Funded Projects
FIND-PREP – Finding the optimal distribution of pre-exposure prophylaxis of HIV among sex workers, a computational modeling approach
If you want to know more about other projects I’m currently working on, please contact me.
Andreia Sofia Teixeira 