Regulatory approvals, pending decisions, and appeals as of January 2026. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Lenacapavir Regulatory Approval
Cabotegravir Regulatory Approval
Regulatory approvals and those pending for cabotegravir as of January 2026. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
EXPrESSIVE Phase 3 Trials Countries of MK-8527
Seventeen countries are hosting sites for the Phase 3 efficacy trials of a monthly PrEP pill, MK-8527, being developed by Merck (also known as MSD outside of the US and Canada). Merck announced the launch of the Phase 3 trials at IAS 2025 in Kigali. MK-8527 was found to be safe and well-tolerated in Phase 2 clinical trials.
HIV Prevention R&D at Risk
Tracking the Impact of US Funding Cuts
The US presidential administration is actively working to dismantle HIV research and demolish the architecture of global health. The entire HIV response — from basic research and clinical development to policy, programs, and global access to life-saving treatment and prevention — is now under attack, and the world runs the risk of reversing the strides made to end HIV.
AVAC has put together this report, highlighting the impact of US cuts on the pipeline of HIV prevention research and development. AVAC will continue to track these cuts and their impact, to amplify the damage they will cause, and to fight for their reversal.
STIWatch Quarterly Newsletter
Q4 Newsletter: December 2025
As many global health fields reassess their reliance on US government funding for research and development, the STI field—already underfunded and reliant on alternate donors—now faces even greater uncertainty. In this newsletter, we share a new STI resource for advocates and highlight the top issues we’re monitoring as events continue to unfold.
People’s Research Agenda
2025 Update
The People’s Research Agenda sets out a people-centered framework for equitable and accelerated R&D and product introduction. It tracks the science, shows where investments align—or fail to align—with community-defined priorities, and spotlights critical gaps in the pipeline of prevention options needed to meet the diverse realities of all populations.
Multipurpose Prevention Technologies (MPTs) Studies Halted by USAID Funding Termination
This graphic shows a list of which studies have been halted by eliminated USAID funding.
At A Glance: The MPT R&D Pipeline
This graphic shows the status of products in development.
HIV Prevention Pipeline: Products to Watch
From the People’s Research Agenda, this graphic tracks the pipeline of potential new HIV prevention options across broadly neutralizing antibodies, preventive vaccines, pre-exposure prophylaxis, and multipurpose technologies.
People’s Research Agenda Pipeline Tracker
This tracker provides details on key HIV prevention trials to watch. It is updated on a quarterly and ad-hoc basis as developments occur.
If you would like to share additional information or corrections, please email Breanne at [email protected]. For more, visit the People’s Research Agenda.