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ClinicalTrials.gov public records Last synced Oct 24, 2026, 6:33 PM EDT

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Showing 1–24 of 98 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Enterobacteriaceae Infections Clear all
Completed Phase 2 Interventional Accepts healthy volunteers

Dose Ranging Study to Determine the Safety, Reactogenicity and Immunogenicity of Typhoid Fever Vaccine (Ty800) in Healthy Adult Subjects

NCT00498654
View directory record Official record
Conditions
Typhoid Fever
Interventions
Ty800 (Salmonella typhi) Oral Vaccine
Biological
Lead sponsor
Avant Immunotherapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
5
States / cities
San Diego, California • Melbourne, Florida • Peoria, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 2, 2008 · Synced Oct 24, 2026, 6:33 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Dynamics of Colonization and Infection by Multidrug-Resistant Pathogens in Immunocompromised and Critically Ill Patients

NCT06258551
View directory record Official record
Conditions
Antimicrobial Drug Resistance, Antibiotic Resistant Infection, Clostridium Difficile, Carbapenem-Resistant Enterobacteriaceae Infection, Extended Spectrum Beta-Lactamase Producing Bacteria Infection, Vancomycin Resistant Enterococci Infection, Carbapenem Resistant Bacterial Infection, Vancomycin-Resistant Enterococcal Infection
Interventions
Not listed
Lead sponsor
The Methodist Hospital Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 14, 2024 · Synced Oct 24, 2026, 6:33 PM EDT
Recruiting Not applicable Interventional

Hyperhydration in Children With Shiga Toxin-Producing E. Coli Infection

NCT05219110
View directory record Official record
Conditions
Shiga Toxin-Producing Escherichia Coli (E. Coli) Infection, Hemolytic-Uremic Syndrome
Interventions
Infusion of 200% maintenance fluids as balanced crystalloid IV solution, Oral fluids; infusion of up to 110% maintenance fluids as balanced crystalloid IV solution
Other
Lead sponsor
University of Calgary
Other
Eligibility
9 Months to 21 Years
Enrollment
1,040 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
22
States / cities
Birmingham, Alabama • Little Rock, Arkansas • La Jolla, California + 19 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational

Antibiotic Resistant Community-Acquired E. Coli

NCT00298103
View directory record Official record
Conditions
E Coli Infection
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Oct 24, 2026, 6:33 PM 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 Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational

Study to Collect Information About Invasive Disease Caused by Extraintestinal Pathogenic Escherichia Coli-2 (EXPECT-2)

NCT04117113
View directory record Official record
Conditions
E. Coli Infection
Interventions
Not listed
Lead sponsor
UMC Utrecht
Other
Eligibility
60 Years and older
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 21, 2021 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Artificial Invaplex (Shigella Flexneri 2a InvaplexAR)

NCT02445963
View directory record Official record
Conditions
Shigellosis, Bacillary Dysentery
Interventions
Shigella flexneri 2a InvaplexAR
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 12, 2021 · Synced Oct 24, 2026, 6:33 PM EDT
Recruiting Phase 2 Interventional

A Study of LBP-EC01 in the Treatment of Acute Uncomplicated UTI Caused by Drug Resistant E. Coli (ELIMINATE Trial)

NCT05488340
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
LBP-EC01 0.1 x IV dose, LBP-EC01 0.01x IV Dose, LBP-EC01 IV Infusion Dose, Placebo, LBP-EC01, TMP/SMX
Drug
Lead sponsor
Locus Biosciences
Industry
Eligibility
18 Years to 75 Years · Female only
Enrollment
318 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
17
States / cities
Fresno, California • Lancaster, California • Los Angeles, California + 13 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2026 · Synced Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Phase 4 Study To Assess The Safety Of Vivotif At Different Release Titers Among Travelers

NCT02391909
View directory record Official record
Conditions
Typhoid Fever
Interventions
Vivotif
Biological
Lead sponsor
Bavarian Nordic
Industry
Eligibility
18 Years and older
Enrollment
855 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 7, 2023 · Synced Oct 24, 2026, 6:33 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study on the Safety and Immune Response of a Urinary Tract Infection (UTI) Vaccine in Adults 18-64 Years of Age and Clinical Efficacy in Females 18-64 Years of Age

NCT06702449
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
Candidate UTI vaccine low dose formulation 1, Candidate UTI vaccine low dose formulation 2, Candidate UTI vaccine medium dose formulation 1, Candidate UTI vaccine medium dose formulation 2, Candidate UTI vaccine high dose formulation 1, Candidate UTI vaccine high dose formulation 2, Candidate UTI vaccine HTD formulation 2, Placebo
Combination Product
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 64 Years
Enrollment
448 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
6
States / cities
Lenexa, Kansas • Secaucus, New Jersey • Rochester, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Oct 24, 2026, 6:33 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Safety, Immunogenicity and Efficacy Study of Inactivated Whole Cell Shigella Flexneri 2a Vaccine With and Without dmLT in Adults

NCT03038243
View directory record Official record
Conditions
Shigella Sonnei Dysenteries
Interventions
Shigella flexneri 2a whole cell (Sf2aWC) vaccine and double mutant E. coli heat labile toxin (dmLT), Shigella flexneri 2a whole cell (Sf2aWC) vaccine, Placebo
Biological · Other
Lead sponsor
PATH
Other
Eligibility
18 Years to 45 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 20, 2017 · Synced Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational

Long Term Protection by and Persistence of Vi Antibodies Induced by Vi-rEPA Conjugate Vaccines in Vietnamese Children Injected at 2-5 Years or at 5-8 Years of Age

NCT00386789
View directory record Official record
Conditions
Typhoid Fever
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
10 Years to 13 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Phase 2 Shigella Vaccine and Challenge

NCT04242264
View directory record Official record
Conditions
Immunisation, Shigella Infection
Interventions
Placebo, Shigella sonnei strain 53G, WRSs2
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Decatur, Georgia • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 24, 2026, 6:33 PM 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 Oct 24, 2026, 6:33 PM EDT
Not yet recruiting Phase 2 Interventional

A Clinical Trial of Resistant Potato Starch for Gut MDRO Decolonization

NCT07792915
View directory record Official record
Conditions
Clostridium Infections, Methicillin-resistant Staphylococcus Aureus (MRSA), Vancomycin-Resistant Enterococci, Carbapenem-Resistant Enterobacteriaceae, Asymptomatic Infections
Interventions
Resistant Potato Starch, Maltodextrin
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2030
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 28, 2026 · Synced Oct 24, 2026, 6:33 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Enteroaggregative E.Coli (EAEC)

NCT00362869
View directory record Official record
Conditions
Escherichia Coli Infections
Interventions
Levofloxacin, Placebo, Enteroaggregative E. coli (EAEC)
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 26, 2016 · Synced Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational

Study of Cases of Serious Infections Due to Carbapenem-Resistant Enterobacteriaceae

NCT02420366
View directory record Official record
Conditions
Urinary Tract Infection, Complicated, Acute Pyelonephritis, Hospital Acquired Bacterial Pneumonia, Ventilator-associated Bacterial Pneumonia, Bacteremia
Interventions
Not listed
Lead sponsor
Rempex (a wholly owned subsidiary of Melinta Therapeutics, Inc.)
Industry
Eligibility
18 Years and older
Enrollment
257 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
12
States / cities
Chicago, Illinois • Evanston, Illinois • Detroit, Michigan + 8 more
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Efficacy Study of CVD 1208S, a Live, Attenuated Oral Vaccine to Prevent Shigella Infection Using cGMP

NCT01531530
View directory record Official record
Conditions
Shigella
Interventions
CVD 1208S, a Shigella flexneri 2a live, oral vaccine, Placebo
Biological · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 45 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Invaplex 50 Vaccine Dose-Ranging

NCT00082069
View directory record Official record
Conditions
Diarrhea
Interventions
Shigella flexneri 2a Invaplex 50
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 40 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 30, 2015 · Synced Oct 24, 2026, 6:33 PM EDT
Completed No phase listed Observational

Incidence of Antibiotic Resistant E.Coli in Patients Undergoing Repeat Prostate Biopsy

NCT00915213
View directory record Official record
Conditions
Bacterial Infection
Interventions
Not listed
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older · Male only
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
3
States / cities
Irvine, California • Long Beach, California • Orange, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2016 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability & Immunogenicity of the Recombinant Plague Vaccine rF1V

NCT00097396
View directory record Official record
Conditions
Pneumonic Plague, Preventive Therapy
Interventions
rF1V vaccine
Biological
Lead sponsor
DynPort Vaccine Company LLC, A GDIT Company
Industry
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 30, 2011 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Shigella CVD 30000: Study of Responses to Vaccination With Shigella Vaccine

NCT04078022
View directory record Official record
Conditions
Shigella
Interventions
SF2a-TT15 Shigella Vaccine, Placebo, S. flexneri 2a strain 2457T Challenge Agent
Biological · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 45 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Oct 24, 2026, 6:33 PM EDT
Recruiting Phase 2 Interventional

Further MT for Antibiotic-Resistant Bacterial Colonization

NCT05835206
View directory record Official record
Conditions
Intestinal Multi-drug Resistant Organism Colonization
Interventions
Microbiome Therapeutic, Placebo
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
6
States / cities
Atlanta, Georgia • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 24, 2026, 6:33 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immunogenicity of Two Live, Attenuated Oral Shigella Sonnei Vaccines: WRSs2 and WRSs3

NCT01336699
View directory record Official record
Conditions
Shigella Infection
Interventions
Placebo, WRSs2, WRSs3
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2019 · Synced Oct 24, 2026, 6:33 PM EDT