This new pilot study used a cool gene therapy technique to confer resistance to HIV.
Basically, a small fraction of humans have innate resistance to HIV. Scientists have found the mutation in white blood cells that confers this. They they extract the cells of patients, alter them, and re-introduce them. The resultant cells resist HIV and are selected for. (the mutation in CCR5 is very hard for HIV to mutate around - if I remember right from my school days, it’s one of the things HIV consistently relies upon).
This study was meant to show safety, not efficacy, but there were signs it was working.
So sad that gene therapy moves so slow, and does not get more money. But excited to see any progress!