London Patient ‘cured of HIV’

A second patient has been cured of HIV after undergoing stem cell transplant treatment, doctors said yesterday, after finding no trace of infection 30 months after he stopped traditional treatment.

The so-called "London Patient", a cancer sufferer originally from Venezuela, made headlines last year when researchers at the University of Cambridge reported they had found no trace of the AIDS-causing virus in his blood for 18 months.

Ravindra Gupta, lead author of the study published in The Lancet HIV, said the new test results were "even more remarkable" and likely demonstrated the patient was cured.

"We've tested a sizeable set of sites that HIV likes to hide in and they are all pretty much negative for an active virus," Gupta told AFP.

The patient, who revealed his identity this week as Adam Castillejo, 40, was diagnosed with HIV in 2003 and had been on medication to keep the disease in check since 2012.

Later that year, he was diagnosed with advanced Hodgkin's Lymphoma, a deadly cancer. In 2016 he underwent a bone marrow transplant to treat blood cancer, receiving stem cells from donors with a genetic mutation present in less than one percent of Europeans that prevents HIV from taking hold.

He becomes only the second person to be cured of HIV after Timothy Brown, known as the "Berlin Patient", recovered from HIV in 2011 following similar treatment.

Researchers cautioned that the breakthrough did not constitute a generalised cure for HIV, which leads to nearly one million deaths every year.

Castillejo's treatment was a "last resort" as his blood cancer would likely have killed him without intervention, according to Gupta.