Norwegian Man Becomes First Person Cured of HIV Using a Sibling's Stem Cells

A Norwegian man has become the first person in history to be cured of HIV using a bone marrow transplant from a family member, marking a landmark moment in the decades-long fight against the virus that causes AIDS.

The patient, known only as the Oslo patient to protect his privacy, received the stem cell transplant from his brother, whose cells carried a rare genetic mutation known as CCR5-delta32. This mutation prevents HIV from entering and infecting cells, effectively rendering the virus unable to replicate in the body.

Doctors confirmed that the Oslo patient shows no detectable traces of HIV following the procedure, and he has been taken off antiretroviral medications. Medical teams are observing him closely to ensure the remission holds over the long term.

Previous cases of HIV cures through stem cell transplants — including the celebrated cases of the Berlin Patient and the City of Hope Patient — involved donors who were not related to the recipients. The Oslo case is significant because it demonstrates that a family member can serve as a viable donor, potentially broadening the pool of eligible candidates for this type of treatment.

The CCR5-delta32 genetic mutation is rare, occurring in roughly one percent of people of Northern European descent. For a transplant of this nature to work, the donor must carry at least one copy of the mutation, making compatible sibling donors an extraordinary find.

Researchers caution that stem cell transplants are not a scalable or universal cure for HIV. The procedure is highly invasive, expensive, and carries serious risks, meaning it is typically only considered for patients who already require a bone marrow transplant to treat cancers such as leukemia or lymphoma.

Nevertheless, scientists say the Oslo case provides crucial insights that could accelerate research into gene-editing therapies and other approaches aimed at replicating the effects of the CCR5-delta32 mutation without the need for a full transplant, bringing the scientific community one step closer to a broadly accessible HIV cure.