AVAC in the News

The only vaccine against HIV still being tested in late-stage clinical trials has proved ineffective, its manufacturer announced on Wednesday, another disappointment in a field long beset by failure. Dozens of HIV vaccine candidates have been tested and discarded over the past few decades. The latest defeat sets progress toward a vaccine back by three to five years, experts said. Still, other options in early-stage trials may yet turn out to provide a powerful bulwark against HIV.

Yet another experimental HIV vaccine has failed. The National Institute of Allergy and Infectious Diseases reported Wednesday that a Phase 3 clinical trial of a vaccine was stopped because the vaccine was ineffective at preventing HIV infection. The vaccine was being developed by Janssen, the vaccine division of Johnson & Johnson.

A new, long-lasting drug could be a game-changer for preventing HIV infections, experts say. Advocates are hopeful that those who need it most in low- and middle-income countries will not have to wait for it as long as they have for previous HIV drugs. But questions remain about access and price. The drug is called cabotegravir and is delivered as a shot once every other month. In clinical trials, it did a better job at preventing infection than another option — a pill taken once a day.

HIV prevention pills are becoming more widely available in South Africa and the country is set to soon start piloting the use of an HIV prevention injection and vaginal ring. But merely having these pre-exposure prophylaxis (PrEP) tools available in clinics and other places does not mean people will use them. This dynamic is nothing new.