PTX-COVID19-B

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PTX-COVID19-B is a messenger RNA (mRNA)-based COVID-19 vaccine, a vaccine for the prevention of the COVID-19 disease caused by an infection of the SARS-CoV-2 coronavirus, created by Providence Therapeutics—a private Canadian drug company co-founded by Calgary, Alberta-based businessman Brad T. Sorenson and San Francisco–based Eric Marcusson^[1] in 2013. A team of eighteen working out of Sunnybrook Research Institute in Toronto, Ontario developed PTX-COVID19-B^[2] in less than four weeks, according to the Calgary Herald.^[3] Human trials with sixty volunteers began on January 26, 2021, in Toronto.^[4][5][6]

Providence, which has no manufacturing facilities, partnered with Calgary-based Northern mRNA—the "anchor tenant" in their future manufacturing facilities pending financing.^[2]

On April 30, 2021, Sorenson announced that Providence Therapeutics would be leaving Canada and any vaccine that it developed would not be manufactured in Canada.^[2]