P-Values

Discover perspectives on the latest findings, biggest challenges and most exciting successes in our collective work.

At P-Values, you’ll find updates, perspective, insights and information from staff and partners working on the frontlines of research, advocacy and implementation. P-value is a statistical term for the probability that a trial result is reliable and not the outcome of chance. 

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Global Health Watch: NIH Orders Pause on HIV Trials, Zimbabwe + Zambia Health MoUs, WHO + Global Fund leadership, Foreign Assistance Funds

The US National Institutes of Health (NIH) said its HIV clinical trial networks should “temporarily hold off on launching new studies that had not yet enrolled participants and that would not be complete by November 30, 2027, when their current funding is set to expire.” This potentially devastating development comes as new questions emerge about how billions in US foreign assistance funding were spent, and details on the impacts of an end of US health assistance to Zimbabwe emerge. Also, a new candidate for WHO leadership and growing civil society calls to protect UNAIDS.

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The Latest Resources from AVAC: The Power of Coalition Advocacy

Advocacy has always been the heartbeat of progress in the fight against HIV/AIDS. Now, more than ever, it is especially needed to ensure that innovation translates into real choices, equitable access and meaningful impact. In this issue, we highlight the power of coalition advocacy – from advocates working in partnership to shape research agendas and oppose policies that threaten progress, to ensuring communities have a voice in AI development and use, to the lessons learned from sustained, coalition-based advocacy that will shape what comes next.

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Advocates Lead at AIDS 2026: Moving from a seat at the table to the head of the table  

The power and leadership of advocates were on full display at AIDS 2026. Following global funding cuts and concerns about de-prioritization of communities and civil society, advocates brought evidence of their impact and the value of continued investment in communities to Rio. On topics ranging from HIV prevention access to the future of artificial intelligence in HIV programs, advocates were driving conference discussions to ensure the community agenda was seen, heard and acted upon.

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Global Health Watch: NIH Orders Pause on HIV Trials, Zimbabwe + Zambia Health MoUs, WHO + Global Fund leadership, Foreign Assistance Funds

The US National Institutes of Health (NIH) said its HIV clinical trial networks should “temporarily hold off on launching new studies that had not yet enrolled participants and that would not be complete by November 30, 2027, when their current funding is set to expire.” This potentially devastating development comes as new questions emerge about how billions in US foreign assistance funding were spent, and details on the impacts of an end of US health assistance to Zimbabwe emerge. Also, a new candidate for WHO leadership and growing civil society calls to protect UNAIDS.

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October 2026

The Latest Resources from AVAC: The Power of Coalition Advocacy

Advocacy has always been the heartbeat of progress in the fight against HIV/AIDS. Now, more than ever, it is especially needed to ensure that innovation translates into real choices, equitable access and meaningful impact. In this issue, we highlight the power of coalition advocacy – from advocates working in partnership to shape research agendas and oppose policies that threaten progress, to ensuring communities have a voice in AI development and use, to the lessons learned from sustained, coalition-based advocacy that will shape what comes next.

October 2026

Advocates Lead at AIDS 2026: Moving from a seat at the table to the head of the table  

The power and leadership of advocates were on full display at AIDS 2026. Following global funding cuts and concerns about de-prioritization of communities and civil society, advocates brought evidence of their impact and the value of continued investment in communities to Rio. On topics ranging from HIV prevention access to the future of artificial intelligence in HIV programs, advocates were driving conference discussions to ensure the community agenda was seen, heard and acted upon.

October 2026

Global Health Watch: Billions in Question, NIH + America First Plans, WHO + Global Fund Leadership & PPPR Rejection

The US fiscal year ended this week amid questions about the billion dollars in Congressionally-appropriated foreign assistance, while new strategies for HIV research at the National Institutes of Health (NIH) and the America First Global Health strategy theoretically move into implementation phases. Also, the Global Fund announced five candidates for its Executive Director, and six candidates were shared as possible leaders of the World Health Organization (WHO), just after the US rejected the UN pandemic preparedness declaration at the end of last week.

October 2026

Global Health Watch: White House Drops NIH Review Plan, NIAID Reorg Moves Fwd, Prep for Generic LEN Access, Accra Reset

There is no shortage of global health news this week. Against the backdrop of the UN General Assembly (UNGA 81), this issue covers efforts to reshape the global health architecture through the Accra Reset, proposed and withdrawn Executive Orders affecting NIH grant making, NIAID restructuring developments, and preparations to expand access to generic lenacapavir for PrEP.

September 2026

Global Health Watch: LEN Access Pathways, NIAID Reorganization, Global Fund Report, NIH Lawsuit

This week’s issue covers developments shaping access to HIV prevention and the future of US biomedical research, including new pathways to accelerate access to lenacapavir for HIV PrEP, calls for greater transparency around a proposed NIAID restructuring, and a new lawsuit challenging NIH’s screening of research grants. With today as the final day to comment on the NIAID proposal, make your voice heard. And read on for a provocative Lancet commentary on the challenges of trying to reform global health architecture.

September 2026

All things alimatravir (AMI)

AVAC and partners have been engaging with Merck/MSD since the very start of the alimatravir product development program and helped conceptualize the EXPrESSIVE efficacy trial design. Building on this foundation of community-centricity, advocates can now push for AMI to be rolled out with speed, scale and equity. Since 2012, each successive PrEP introduction has gone faster than the previous one, yet the time to market and to public health impact for PrEP remains too slow. Read on for AVAC’s insights on AMI, from accelerated licensing and affordability to community priorities and meaningful engagement.

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September 2026

Global Health Watch: NIH-DoD Deal & NIAID Restructuring, Ebola Vaccine Progress, Gavi Funding Resumes, New US Foreign Aid Leadership

The US National Institutes of Health (NIH) signs a 10-year agreement that could move significant NIAID research funding to the Department of Defense, as NIAID separately proposes a major restructuring of its clinical research infrastructure. CEPI advances efforts toward a Bundibugyo Ebola vaccine amid funding gaps, while US funding for Gavi resumes and medical groups step in on vaccine guidance. And new leadership at the Department of State brings further change to the US foreign assistance system.

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September 2026

The Impact Report: Two Decades of Good Participatory Practice in HIV Research 

Scientific breakthroughs in HIV prevention depend on community engagement that drives successful research, development, acceptance and uptake of new products. In 2007, emerging from controversies that halted the first ever PrEP efficacy trials, AVAC and UNAIDS led a global partnership to develop the Good Participatory Practice (GPP) Guidelines, offering systematic guidance on how to engage stakeholders throughout HIV prevention trials. Almost twenty years later, GPP is the gold standard for engagement in HIV prevention research and beyond. This edition of the Impact Report celebrates two decades of GPP, and shares how AVAC and our research and civil society partners have effectively integrated GPP into HIV prevention.

September 2026

Using a Transformative Human-Centered Design Approach to Co-Create Communication Materials for the Alimatravir Efficacy Trial, EXPrESSIVE-11

Merck’s EXPrESSIVE program is investigating the efficacy of alimatravir (AMI) for monthly oral PrEP. With support from the Gates Foundation, AVAC works to ensure there is strong, consistent engagement with community representatives to influence the design and implementation of the trials, with an eye toward future rollout and access planning. Leveraging expertise in community engagement and human-centered design, AVAC worked in partnership with community-based organizations on three continents to co-create communications materials for the EXPrESSIVE-11 trial – conducted among men who have sex with men (MSM), transgender, and non-binary people – that are driven by community perspectives and lived realities.

September 2026

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P-Values Blog

Discover perspectives on the latest findings, biggest challenges and most exciting successes in our collective work.

Advocates Network

AVAC’s email list for organization and individuals interested in timely updates and critical perspectives on developments in biomedical HIV prevention.

Weekly News Digest

A comprehensive round-up of HIV prevention media coverage and scientific publications.

PxPulse

Each month this podcast uses interviews, discussion and first-person reflections to explore vital topics confronting the field of HIV prevention research.

PxWire

PxWire is AVAC’s quarterly update on biomedical HIV prevention. Each issue highlights key developments, challenges and opportunities, and features a centerspread infographic that provides a visual tool for framing these issues.

Pandemic Watch

Pandemic Watch is a curated news digest on the latest pandemic prevention, preparedness, and response (PPPR) news and resources.

Press Releases

A collection of official statements from AVAC.

AVAC in the News

Media clippings featuring AVAC, its staff and close partners in the news media.