1,3 million new HIV infections each year. A scary number, which tells stories of lives turned upside down, of devastated communities. But now, thanks to an experimental new drug, this number may soon become a thing of the past. HIV prevention is about to enter a new era, and it all starts with two simple shots a year.
A revolutionary trial
Gilead Sciences, a California-based biopharmaceutical company, recently announced the results of a major clinical trial conducted in Africa (I link it here). The protagonist of this turning point is the lenacapavir, an experimental drug given by injection twice a year.
Gilead Sciences Inc.'s two-year experimental shot has prevented 100% of HIV cases in women and adolescent girls in Africa, the first large, successful study of what it hopes will become a powerful new drug regimen to fight the virus.
The potential impact on HIV prevention
The study involved approximately 5.300 women and adolescents aged between 16 and 25 in South Africa and Uganda. These countries represent some of the areas hardest hit by the HIV/AIDS epidemic, making the trial results particularly significant for global public health.
Overcoming the obstacles of daily prevention
One of the biggest obstacles in HIV prevention has always been adherence to treatment regimens. Current options involve taking daily pills or injections every two months. Lenacapavir, with its six-monthly administration, could represent a more practical and accessible solution.
The trial's success exceeded expectations, the company says. Jared Baeten, head of HIV development for Gilead, pointed out that no other HIV prevention strategy has ever achieved zero infections in a late-stage study. This result opens new perspectives in the fight against HIV/AIDS.

The stock market is already booming
The news also had a significant impact on the stock market. Gilead's actions recorded an increase of up to 8,3%, the largest daily gain since October 2022. This reflects investor enthusiasm for the potential of this new drug.
A reasoned enthusiasm, moreover: according to the analyst Brian Abrahams of RBC Capital Markets, the preventive use of the drug could generate annual sales of $1,7 billion or more. This highlights not only the potential public health impact, but also the enormous economic implications of this medical breakthrough.
Future perspectives
Gilead is conducting a second prevention trial of lenacapavir in men who have sex with men, transgender women, and transgender men. This study, which also includes participants in the United States, could deliver results by the end of 2024.
If results continue to be positive, Gilead plans to seek regulatory approval for preventive use of lenacapavir in the United States and other countries. It would be the beginning of a new era in HIV prevention.
HIV prevention, challenges and future considerations
The results of this study represent much more than a simple scientific advance. They are a beacon of hope for millions of people around the world. Every new tool in the fight against HIV/AIDS brings us closer to the goal of a world free of this disease. Lenacapavir, with its promise of simple and effective prevention, could be the catalyst for a radical change in our approach to global health and the management of infectious diseases.
We still have a long way to go, but for the first time in decades we can glimpse a future where H.I.V it could become a threat of the past. Two injections a year may be all it takes to make this vision a reality. It's a future worth fighting for, a future that now seems closer than ever.
Despite the promising results, it is important to remember that lenacapavir is still in the experimental phase. Further studies will be needed to confirm its long-term safety and effectiveness, as well as to evaluate its effectiveness in different populations and geographic contexts.