Clostridium Difficile Vaccine 2-Dose Versus 3-Dose Study

Summary

This study will investigate a Clostridium difficile vaccine in adults 50 years of age and older. In half the adults, all 3 doses given are the Clostridium difficile vaccine, and in half the adults, 2 of the 3 doses are the Clostridium difficile vaccine with the other dose containing no active ingredients. The study will look at the subjects' immune response to the vaccine and assess the safety and tolerability of a 2-dose regimen of Clostridium difficile vaccine compared to a 3-dose regimen of Clostridium difficile vaccine.

Timeline

Start

2019-04-01

Primary completion

2020-12-22

Completion

2020-12-22

Drugs

Indications