The man underwent a bone marrow transplant, after which doctors observed no detectable HIV, suggesting a potential cure.
This case adds to rare global instances where HIV remission followed similar transplants, offering hope for future research but not an immediate widespread cure.
Can gene editing replicate this HIV cure without a risky transplant?
This is only the eleventh such case. Why has this type of cure remained so exceptionally rare?
The patient is HIV-negative for now. What is the medical threshold for declaring a definitive cure?
What role did a severe complication play in eradicating the patient's HIV?
How does institutional teamwork accelerate major medical breakthroughs like this one?
Oslo Patient Achieves Over Five Years of Sustained HIV Remission with Heterozygous CCR5Δ32 Stem Cell Transplant
Overview
The Oslo Patient, diagnosed with HIV and blood cancer, underwent a stem cell transplant in 2020 using donor cells with a single CCR5Δ32 mutation. This transplant led to full donor chimerism, replacing his immune system and enabling a powerful immune response that eliminated hidden HIV reservoirs. After stopping antiretroviral therapy, he has maintained undetectable HIV levels and sustained remission for over five years. While this breakthrough shows that complete CCR5 disruption isn't necessary for remission, the transplant carries high risks like graft-versus-host disease and transplant-related mortality. These dangers limit its use, driving research toward safer gene editing and immunotherapy approaches that aim to replicate this success without such risks.