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Clinical Trial Summary

This study will investigate a Clostridium difficile vaccine in healthy adults 65 to 85 years of age, who will each receive 3 doses of vaccine. The study will assess the lot consistency, safety, and tolerability of the vaccine, and also look at the subjects' immune response to the vaccine.


Clinical Trial Description

Serology for B5091008 was delayed due to discussions with the FDA on statistical analysis as well as delays attributed to the COVID pandemic. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03579459
Study type Interventional
Source Pfizer
Contact
Status Completed
Phase Phase 3
Start date July 31, 2018
Completion date August 6, 2019

See also
  Status Clinical Trial Phase
Completed NCT01706367 - Evaluation of a 3-dose Vaccination Regimen With One of Three Ascending Dose Levels of Clostridium Difficile Vaccine With or Without Adjuvant in Healthy Adults Aged 50 to 85 Years Phase 1
Active, not recruiting NCT02117570 - A Study To Investigate A Clostridium Difficile Vaccine In Healthy Adults Aged 50 to 85 Years, Who Will Each Receive 3 Doses Of Vaccine. Phase 2
Completed NCT02561195 - A Study To Investigate Two 3-dose Schedules Of A Clostridium Difficile Vaccine In Healthy Adults Aged 65 to 85 Years Phase 2
Completed NCT02725437 - Clostridium Difficile Vaccine Safety, Tolerability, and Immunogenicity Study in Japanese Adults Phase 1
Completed NCT03918629 - Clostridium Difficile Vaccine 2-Dose Versus 3-Dose Study Phase 3