A team of scientists from St. Michael’s Hospital, Sinai Health and Sunnybrook Health Sciences Centre have launched a clinical trial to understand whether an existing drug used for HIV treatment and prevention may work to prevent COVID-19 infection.
The trial will examine whether post-exposure prophylaxis (PEP), which is a medication a person takes once they’ve been exposed to a virus to prevent infection, could halt or slow the spread of COVID-19 in groups of people who have been exposed to a confirmed case. The drug in question – Kaletra (lopinavir/ritonavir as PEP)- has long been used in this capacity to prevent HIV in those who have been exposed to the virus.
“Early studies of the use of this medication as post-exposure prophylaxis therapy in other coronaviruses such as SARS and MERS have been promising,” says Dr. Darrell Tan, the study’s lead investigator who is also a scientist at the MAP Centre for Urban Health Solutions and an infectious disease physician at St. Michael’s. “These are so-called ‘cousin’ viruses to COVID-19 and we want to understand whether lopinavir/ritonavir as PEP could impact its spread as well.”