This timeline shows the potential time points when the next-generation of HIV prevention options might find their way into new programs.
Years Ahead in HIV Prevention Research: Time to Market
Lenacapavir Regulatory Approval
Regulatory approvals, pending decisions, and appeals as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Cabotegravir Implementation
Implementation studies completed, ongoing, or planned for cabotegravir as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Dapivirine Vaginal Ring Implementation
Ongoing and planned implementation studies for the dapivirine vaginal ring as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Cabotegravir Volume
Allocation of non-commercial cabotegravir for PrEP supply in low- and middle-income countries, 2023-2026, as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Dapivirine Vaginal Ring Volume
DVR supply available to low- and middle-income countries as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Cabotegravir Regulatory Approval
Regulatory approvals and those pending for cabotegravir as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Dapivirine Vaginal Ring Regulatory Approval
Regulatory approvals, pending decisions, and appeals as of March 2025. For product approvals, volumes, implementation, and price comparisons of long-acting PrEP, visit our dashboard on PrEPWatch.org.
Impact of PEPFAR’s Stop Work Order on PrEP
The impact of the stop-work order on PrEP is expected to be severe. In a set of slides and on our website, PrEPWatch, we have posted the results of an analysis drawing on key informant interviews with representatives of Ministries of Health and PrEP implementers between 27 January 2025, when stop-work orders were issued by the US government, and the end of February 2025, when the vast majority of USAID-funded projects received official termination notices. Find the latest here.
Trials & Projects Halted by USAID Funding Suspension
The stop-work orders have disrupted USAID-supported HIV prevention research, halting critical investigations in vaccine and next-generation PrEP strategies.
The abrupt suspension of these trials also raises serious ethical concerns. Stopping trials mid-course undermines trust in research, jeopardizes community engagement, and abandons participants who volunteer their bodies for scientific discovery. It will take years to build back this critical infrastructure—for HIV research and beyond—as well as the community partnership and trust needed to ensure smooth and ethical research.