For decades, HIV research has pursued a goal that once seemed almost impossible: controlling the virus without lifelong treatment.
Modern antiretroviral therapy (ART) can suppress HIV to undetectable levels and has transformed HIV from a frequently fatal infection into a manageable condition. But ART does not remove HIV from the body. Hidden reservoirs of infected cells can remain dormant and allow the virus to rebound if treatment stops. NIH explains the latent HIV reservoir and why it remains a major challenge for cure research.
That is why scientists are now pursuing functional cure strategies: keeping HIV permanently suppressed without continuous ART.
What Would a Functional Cure Mean?
A functional cure would not necessarily eliminate every copy of HIV. Instead, the goal is long-term remission without antiretroviral treatment. A sterilizing cure, completely eliminating replication-competent HIV from the body, would be a much more difficult achievement. NIH’s HIV cure research program distinguishes sustained viral remission from the longer-term goal of viral eradication.
Researchers are approaching the problem from several directions.
1. Broadly Neutralizing Antibodies
Broadly neutralizing antibodies, or bNAbs, can target multiple HIV strains. Researchers are investigating whether combinations of these antibodies can maintain viral suppression after ART is stopped.
NIH-funded research has identified immune responses associated with sustained HIV control after experimental antibody treatment, providing clues about how drug-free remission might be achieved. NIH’s research summary describes the immune responses associated with long-term HIV control.
2. Finding and Controlling Hidden HIV
One of the biggest obstacles is the latent HIV reservoir.
The “shock and kill” approach attempts to wake dormant HIV so infected cells can be recognized and destroyed. The alternative “block and lock” strategy aims to permanently silence the virus instead. Researchers are also investigating combinations of these approaches.
These approaches are described in detail by NIH HIVinfo, which notes that no method has yet fully eliminated latent HIV reservoirs.
3. Gene Editing and Engineered Immune Cells
Gene editing could eventually attack HIV at its genetic source.
Researchers are studying CRISPR-based approaches, engineered T cells and other cellular therapies designed either to disrupt HIV DNA or make cells resistant to infection. A 2026 clinical study of AGT103-T reported reductions in intact HIV proviral DNA in all six participants studied, although this remains an experimental approach requiring further evaluation. The study is indexed in PubMed.
4. Stem-Cell Transplants Have Already Produced Remission
The strongest proof that HIV remission is possible comes from rare cases involving stem-cell transplantation.
At AIDS 2026, researchers reported the 12th and 13th people described as having achieved sustained HIV remission. The “Kansas City patient,” for example, had remained in remission for 14 months after receiving a CCR5-delta32/delta32 stem-cell transplant without treatment.
These cases demonstrate what is biologically possible, but stem-cell transplantation is too risky and complex to serve as a general HIV cure.
So, How Close Are We?
The scientific field is clearly moving forward, but a broadly available functional HIV cure does not yet exist.
The direction of research is increasingly toward combinations: antibodies, immune therapies, reservoir-targeting drugs, engineered cells and gene editing. The central challenge remains finding and safely controlling the hidden HIV reservoir throughout the body.
The breakthrough may ultimately come not from one “magic bullet,” but from combining several technologies well enough to keep HIV suppressed without lifelong ART.
For now, that remains the goal, not yet the standard of care.
For more on the latest developments, read our HIV cure research.
