Gilead Sciences has announced the outcomes from the randomised Phase III PURPOSE 2 trial evaluating lenacapavir for human immunodeficiency virus (HIV) prevention.

The trial demonstrated a 96% reduction in HIV infections compared to background incidence, with lenacapavir showing strong efficacy and tolerability.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

The double-blind, multicentre PURPOSE 2 trial compared the safety and efficacy of twice-yearly subcutaneous lenacapavir for pre-exposure prophylaxis (PrEP) against once-daily oral Truvada.

This trial was conducted across 88 sites in seven countries, involving subjects of diverse demographics.

In the trial, only two incident cases of HIV were reported among 2,179 participants in the lenacapavir group, demonstrating a 99.9% success rate in preventing HIV acquisition.

The trial’s findings are consistent with the earlier PURPOSE 1 trial, which reported zero infections among cisgender women in sub-Saharan Africa.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

The company’s access strategy for lenacapavir, shaped by input from more than 100 global health advocates and organisations, aims for swift regulatory review and approval worldwide.

The PURPOSE programme, encompassing five HIV prevention trials, is focused on health equity, scientific innovation, trial design, and community engagement.

Findings from PURPOSE 1 and 2 are set to support global regulatory filings for lenacapavir for PrEP, expected to commence by the end of the year.

Currently, the use of lenacapavir for HIV prevention remains investigational and is not approved globally.

The trial data was published in the New England Journal of Medicine (NEJM).

Earlier this month, the company reported outcomes from a Phase III study of its other candidate, Livdelzi (seladelpar) for treating primary biliary cholangitis (PBC).

Clinical Trials Arena Excellence Awards - Nominations Closed

Nominations are now closed for the Clinical Trials Arena Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact

Excellence in Action
Science 37 has won the Research and Development Award in the Site Innovation category for its FDA inspected Direct-to-Patient Site model, delivering nationwide access, faster enrollment and higher retention. Explore how its virtual-first, in home approach is reshaping trial operations and accelerating time to data-driven decisions..

Discover the Impact