WASHINGTON — A former Pfizer scientist was subpoenaed Monday by House Republicans over allegations that senior executives at the pharma giant colluded to “deliberately slow down” clinical tests of its ...

A pair of 9-year-old twin girls were immunized with Pfizer’s COVID-19 vaccine March 24, becoming the first participants in the drugmaker’s new trial testing its shot in children as young as 6 months, ...

Pfizer will test its COVID-19 vaccine in a larger group of children between 6 months and 12 years old after choosing a lower dose than it administered in an earlier stage of the trial, The New York ...

NEW YORK - Pfizer has started testing a booster shot of its COVID-19 vaccine in combination with a pneumococcal vaccine candidate, the company announced this week. The company has enrolled 600 fully ...

Drug maker Pfizer says it's planning to start testing its COVID-19 vaccine on children as young as 12. This will be the first coronavirus vaccine trial to include children in the United States. The ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. Yet another experimental drug heavily touted by Pfizer Inc. has foundered in advanced testing, raising worries about productivity ...