Pfizer begins testing use of pneumococcal vaccine along with COVID-19 booster shot

Reuters

Published May 24, 2021 07:09AM ET

Updated May 24, 2021 08:07AM ET

(Reuters) - Pfizer Inc (NYSE:PFE) said on Monday it began testing fully vaccinated adults over 65 in a new study that uses the company's 20-valent pneumococcal conjugate vaccine (20vPnC) candidate with a third dose of the Pfizer-BioNTech COVID-19 shot.

The aim of the study is to understand if the combination of the vaccines is safe, and the immune response after adding the pneumonia vaccine to the existing COVID-19 vaccine, Pfizer said.

The vaccine candidate, 20vPnC, is being developed to help protect adults against 20 serotypes responsible for the majority of invasive pneumococcal disease and pneumonia.

The new study will include 600 adults who will be recruited from the two companies' late-stage COVID-19 vaccine study, after having received their second dose of the vaccine at least six months before entering the co-administration study.