LSUHS begins enrollment in Pfizer-sponsored COVID-19 vaccine study Fri, 09/11/2020 - 12:00am LSU Health Shreveport has begun enrollment in the Pfizer-sponsored COVID-19 vaccine study. This is a randomized, placebo-controlled trial of an ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today! Read more about LSUHS begins enrollment in Pfizer-sponsored COVID-19 vaccine study