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ClinicalTrials.gov public records Last synced Sep 30, 2026, 6:54 AM EDT

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Showing 1–15 of 15 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: E coli Vaccine 5 Dose A Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A New Anthrax Vaccine Administered by the Intramuscular (IM) Route in Healthy Adults

NCT00057525
View directory record Official record
Conditions
Anthrax
Interventions
Anthrax, Alhdryogel or PBS
Biological
Lead sponsor
DynPort Vaccine Company LLC, A GDIT Company
Industry
Eligibility
18 Years to 40 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 30, 2011 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Safety and Preliminary Efficacy of the Malaria Vaccine Candidates Falciparum Merozoite Protein-1 (FMP1) and SmithKlineBeecham (SKBB) Candidate Malaria Vaccine RTS,S

NCT01556945
View directory record Official record
Conditions
Malaria, Falciparum
Interventions
FMP1/AS02, RTS,S/AS02, AS02 adjuvant alone, Malaria challenge
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2001
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 2, 2014 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety Study of Hepatitis E Vaccine (HEV239)

NCT03827395
View directory record Official record
Conditions
Hepatitis E, Immunisation
Interventions
HEV 239, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 24, 2021 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Peru-15-pCTB in Healthy Adult Subjects

NCT00654108
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli
Interventions
Ciprofloxacin, Peru-15-pCTB, Sodium bicarbonate/Ascorbic Acid/Aspartame Buffer
Drug · Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase I Study of ETEC Vaccine

NCT01147445
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli
Interventions
Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Baltimore, Maryland • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Phase 1 Study of dmLT ID Vaccination in Healthy Adults

NCT02531685
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli
Interventions
Placebo, Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 26, 2020 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Sublingual dmLT for ETEC

NCT02052934
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli
Interventions
Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2019 · Synced Sep 30, 2026, 6:54 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Intradermal Fractional Dose IPV (fIPV) in Combination With dmLT

NCT05327426
View directory record Official record
Conditions
Poliomyelitis
Interventions
Intradermal fractional dose inactivated polio vaccine (fIPV) in combination with recombinant double mutant heat labile toxin, LT(R192G/L211A), (dmLT), Intradermal fractional dose inactivated polio vaccine (fIPV), Monovalent oral poliomyelitis vaccine (mOPV), Sabin strain
Biological
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 45 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Trial of a Falciparum Malaria Protein (FMP012), E. Coli-expressed PfCelTOS, in Healthy Malaria-Naive Adults

NCT01540474
View directory record Official record
Conditions
Malaria
Interventions
Group 1: 10 ug FMP012 with 2 ug GLA-SE, Group 2: 10 ug FMP012 with 5 ug GLA-SE, 50 ug FMP012 with 5 ug GLA-SE or 2 ug GLA-SE, Controlled group-Challenged Only: no vaccination
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 8, 2021 · Synced Sep 30, 2026, 6:54 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A Double-Blind Placebo-Control Dose Escalating Study to Evaluate the Safety and Immunogenicity of dmLT by Oral, Sublingual and Intradermal Vaccination in Adults Residing in an Endemic Area

NCT03548064
View directory record Official record
Conditions
Gastroenteritis Escherichia Coli, Immunisation
Interventions
Placebo, Recombinant Double Mutant Heat-Labile Toxin LT(R192G/L211A) (dmLT) Oral enterotoxigenic Escherichia coli (ETEC) Vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Live Attenuated ETEC Vaccine ACE527 With and Without dmLT Adjuvant in Adults

NCT01739231
View directory record Official record
Conditions
Diarrhea
Interventions
ACE527, dmLT, CeraVacx placebo, H10407 challenge strain
Biological
Lead sponsor
PATH
Other
Eligibility
18 Years to 50 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 12, 2019 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Dose Escalating Study of a Prototype CS6 Subunit Vaccine With a Modified Heat-labile Enterotoxin From Enterotoxigenic Escherichia Coli (ETEC)

NCT03404674
View directory record Official record
Conditions
Diarrhea
Interventions
CssBA, dmLT
Biological
Lead sponsor
PATH
Other
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 6, 2021 · Synced Sep 30, 2026, 6:54 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

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

NCT07122986
View directory record Official record
Conditions
Healthy Participants
Interventions
E coli vaccine 1 Dose A, E coli vaccine 1 Dose B, E coli vaccine 2, E coli vaccine 3, E coli Vaccine 4 Dose A, E coli Vaccine 4 Dose B, E coli Vaccine 4 Dose C, E coli Vaccine 5 Dose A, E coli Vaccine 5 Dose B, Placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years
Enrollment
310 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
11
States / cities
Anaheim, California • Lake Forest, California • Walnut Creek, California + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Low-dose Challenge Model With Enterotoxigenic E Coli

NCT00844493
View directory record Official record
Conditions
Diarrhea
Interventions
E coli strain H10407 and buffer, E coli H10407 and buffer
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 45 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 12, 2014 · Synced Sep 30, 2026, 6:54 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety Study of Chimeric Vaccine to Prevent ETEC Diarrhea

NCT01644565
View directory record Official record
Conditions
Escherichia Coli Infection
Interventions
Recombinant fimbrial adhesin dsc14CfaE-sCTA2/LTB5, Recombinant fimbrial adhesin dscCfaE, Modified E. coli heat labile enterotoxin LTR192G
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 12, 2021 · Synced Sep 30, 2026, 6:54 AM EDT