A Study to Learn About a Vaccine Against E Coli in Healthy Adults

PHASE1RecruitingINTERVENTIONAL
Enrollment

310

Participants

Timeline

Start Date

August 11, 2025

Primary Completion Date

May 25, 2028

Study Completion Date

May 25, 2028

Conditions
Healthy Participants
Interventions
DRUG

E coli vaccine 1 Dose A

Candidate E coli vaccine 1 Dose A, administered according to a 0, 6-month interval

DRUG

E coli vaccine 1 Dose B

Candidate E coli vaccine 1 Dose B, administered according to a 0, 6-month interval

DRUG

E coli vaccine 2

Candidate E coli vaccine 2, administered according to a 0, 6-month interval

DRUG

E coli vaccine 3

Candidate E coli vaccine 3, administered according to a 0, 6-month interval

DRUG

E coli Vaccine 4 Dose A

Candidate E coli vaccine 4 Dose A, administered according to a 0, 6-month interval

DRUG

E coli Vaccine 4 Dose B

Candidate E coli vaccine 4 Dose B, administered according to a 0, 6-month interval

DRUG

E coli Vaccine 4 Dose C

Candidate E coli vaccine 4 Dose C, administered according to a 0, 6-month interval

DRUG

E coli Vaccine 5 Dose A

Candidate E coli vaccine 5 Dose A, administered according to a 0, 6-month interval

DRUG

E coli Vaccine 5 Dose B

Candidate E coli vaccine 5 Dose B, administered according to a 0, 6-month interval

DRUG

Placebo

Placebo administered according to a 0, 6-month interval

Trial Locations (10)

33024

NOT_YET_RECRUITING

Miami Eye Institute, Hollywood

NOT_YET_RECRUITING

Research Centers of America ( Hollywood ), Hollywood

NOT_YET_RECRUITING

Research Centers of America, Hollywood

37803

NOT_YET_RECRUITING

University Eye Specialists, P.C. (Ophthalmologist), Maryville

37909

NOT_YET_RECRUITING

Alliance for Multispecialty Research, LLC, Knoxville

37920

NOT_YET_RECRUITING

Alliance for Multispecialty Research, LLC, Knoxville

44121

NOT_YET_RECRUITING

Senders Pediatrics, South Euclid

45212

RECRUITING

CTI Clinical Research Center, Cincinnati

92801

NOT_YET_RECRUITING

Anaheim Clinical Trials, LLC, Anaheim

94598

RECRUITING

Diablo Clinical Research, Inc., Walnut Creek

Sponsors

Lead Sponsor

All Listed Sponsors
lead

Pfizer

INDUSTRY