Islanders who have had a stroke will now be part of a worldwide drug study. Tenecteplase, a clot-busting drug, is already being used on P.E.I., but this research will teach health-care providers how best to use it. CBC’s Tony Davis has more. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe to CBC News on Snapchat: https://bit.ly/