
Gregory Costain
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Dr. Gregory Costain leads the genetic medicine program at SickKids in Toronto and is recognized for his work in advancing gene-editing therapies for rare genetic diseases, drawing inspiration from groundbreaking cases in the United States.
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Gregory Costain, who leads Toronto’s SickKids genetic medicine program, sees hope for rare diseases from a pioneering gene-therapy case.
2025 was a year of breakthroughs in health and medicine. Here are fiveThe Globe and Mail·
Canada· 2025-12-25



