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A Study to Learn About a Vaccine Against E Coli in Healthy Adults
Sponsor: Pfizer
Summary
This study evaluates an investigational vaccine designed to protect against Escherichia coli (E coli). The primary objective is to assess the safety and tolerability of E coli vaccines administered intramuscularly to healthy adults.
Official title: A PHASE 1, RANDOMIZED, DOUBLE-BLIND, THIRD-PARTY-UNBLINDED STUDY TO EVALUATE THE SAFETY AND TOLERABILITY OF A VACCINE AGAINST E COLI IN HEALTHY ADULTS
Key Details
Gender
All
Age Range
18 Years - 64 Years
Study Type
INTERVENTIONAL
Enrollment
310
Start Date
2025-08-11
Completion Date
2028-05-26
Last Updated
2026-01-21
Healthy Volunteers
Yes
Conditions
Interventions
E coli vaccine 1 Dose A
Candidate E coli vaccine 1 Dose A, administered according to a 0, 6-month interval
E coli vaccine 1 Dose B
Candidate E coli vaccine 1 Dose B, administered according to a 0, 6-month interval
E coli vaccine 2
Candidate E coli vaccine 2, administered according to a 0, 6-month interval
E coli vaccine 3
Candidate E coli vaccine 3, administered according to a 0, 6-month interval
E coli Vaccine 4 Dose A
Candidate E coli vaccine 4 Dose A, administered according to a 0, 6-month interval
E coli Vaccine 4 Dose B
Candidate E coli vaccine 4 Dose B, administered according to a 0, 6-month interval
E coli Vaccine 4 Dose C
Candidate E coli vaccine 4 Dose C, administered according to a 0, 6-month interval
E coli Vaccine 5 Dose A
Candidate E coli vaccine 5 Dose A, administered according to a 0, 6-month interval
E coli Vaccine 5 Dose B
Candidate E coli vaccine 5 Dose B, administered according to a 0, 6-month interval
Placebo
Placebo administered according to a 0, 6-month interval
Locations (11)
Anaheim Clinical Trials, LLC
Anaheim, California, United States
Orange County Research Center
Lake Forest, California, United States
Diablo Clinical Research, Inc.
Walnut Creek, California, United States
Miami Eye Institute
Hollywood, Florida, United States
Research Centers of America
Hollywood, Florida, United States
NYU Langone Health
New York, New York, United States
CTI Clinical Research Center
Cincinnati, Ohio, United States
Senders Pediatrics
South Euclid, Ohio, United States
Alliance for Multispecialty Research, LLC
Knoxville, Tennessee, United States
Alliance for Multispecialty Research, LLC
Knoxville, Tennessee, United States
University Eye Specialists, P.C. (Ophthalmologist)
Maryville, Tennessee, United States