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ClinicalTrials.gov public records Last synced Oct 25, 2026, 5:11 PM EDT

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Showing 481–504 of 608 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Gram Negative Infection Clear all
Not listed No phase listed Observational

Comparison of Solid Organ Transplant

NCT04055922
View directory record Official record
Conditions
Gram-Negative Bacterial Infections, Gram-negative Bacteremia, Multidrug-Resistant Organism, Hospital-acquired Pneumonia, Healthcare-associated Pneumonia
Interventions
Not listed
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced Oct 25, 2026, 5:11 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Lyme Test Indication Combinations (LyTIC) Study

NCT03201042
View directory record Official record
Conditions
Lyme Disease
Interventions
PCR based assay, Serology based assay, Tcell based assay
Diagnostic Test
Lead sponsor
Oxford Immunotec
Industry
Eligibility
5 Years and older
Enrollment
410 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
60
States / cities
Redding, California • New London, Connecticut • Norwalk, Connecticut + 53 more
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 25, 2026, 5:11 PM EDT
Completed No phase listed Observational

Quantifying Gram-negative Resistance to Empiric Therapy in the Intensive Care Unit

NCT05171257
View directory record Official record
Conditions
Gram-Negative Bacterial Infections
Interventions
IV antibiotic treatment from prior, differing IV antibiotic treatment
Drug
Lead sponsor
Methodist Health System
Other
Eligibility
18 Years and older
Enrollment
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity Study of a Live Francisella Tularensis Vaccine

NCT00584844
View directory record Official record
Conditions
Tularemia
Interventions
Live F tularensis Vaccine
Biological
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
17 Years to 65 Years
Enrollment
484 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2013
U.S. locations
1
States / cities
Fort Deterick, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2020 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 4 Interventional

Animal-Assisted Visitation Program Chlorhexidine Trial

NCT04171817
View directory record Official record
Conditions
Methicillin-resistant Staphylococcus Aureus, Clostridium Difficile, Pseudomonas Aeruginosa
Interventions
Chlorhexidine
Drug
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
3 Years to 17 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Baltimore, Maryland • St Louis, Missouri • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy Study of CVD 1208S, a Live, Attenuated Oral Vaccine to Prevent Shigella Infection: Phase IIa

NCT00866476
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
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 29, 2021 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of GSK Meningococcal Group B Vaccine and 13-valent Pneumococcal Vaccine Administered Concomitantly With Routine Infant Vaccines to Healthy Infants

NCT03621670
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
Bexsero (GSK Biologicals' Meningococcal group-B vaccine/ rMenB+OMV NZ), Prevnar13, Pediarix, Hiberix, Rotarix, M-M-R II, Varivax, Placebo (saline water), Prevnar 20
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 12 Weeks
Enrollment
1,196 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
56
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 47 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 1 Interventional Results available

Safety, Tolerability, Pharmacokinetic and Microbiological Investigation of GSK3882347 in Female Participants With Urinary Tract Infections

NCT05138822
View directory record Official record
Conditions
Uncomplicated Urinary Tract Infections, Urinary Tract Infections
Interventions
GSK3882347, Nitrofurantoin, Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
15
States / cities
Anniston, Alabama • Lomita, California • Modesto, California + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed No phase listed Observational

Chlamydia Trachomatis Immunology and Vaccinology Study

NCT01150747
View directory record Official record
Conditions
Chlamydia
Interventions
ceftriaxone, Azithromycin
Drug
Lead sponsor
Harold Wiesenfeld
Other
Eligibility
15 Years to 35 Years · Female only
Enrollment
347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
4
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 3, 2015 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Impact of Two Alternative Dosing Strategies for Trachoma Control in Niger

NCT00618449
View directory record Official record
Conditions
Trachoma, Chlamydia Trachomatis
Interventions
Azithromcyin, Azithromycin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
1,139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 8, 2012 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Adolescent Sexually Transmitted Infection Screening in the Emergency Department

NCT03715335
View directory record Official record
Conditions
Gonorrhea, Chlamydia
Interventions
Targeted STI Screening, Universally Offered STI Screening
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
15 Years to 21 Years
Enrollment
98,413 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
5
States / cities
Aurora, Colorado • Columbus, Ohio • Philadelphia, Pennsylvania + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Phase 3 Lot to Lot Consistency Study of Live Oral Cholera Vaccine, PXVX0200 in Healthy Adults

NCT02094586
View directory record Official record
Conditions
Cholera
Interventions
PXVX0200 Lot A, PXVX0200 Lot B, PXVX0200 Lot C, Placebo
Biological
Lead sponsor
Bavarian Nordic
Industry
Eligibility
18 Years to 45 Years
Enrollment
3,146 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
19
States / cities
Mobile, Alabama • Phoenix, Arizona • DeLand, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Intradermal Versus Subcutaneous Doses of Menomune®

NCT00850603
View directory record Official record
Conditions
Meningococcal Infections, Meningitis
Interventions
Meningococcal Polysaccharide Groups A\C\Y\W-135 Combined
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
18 Years to 55 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
East Stroudsburg, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of an Investigational Quadrivalent Meningococcal Conjugate Vaccine in Adults 56 Years and Older

NCT02842866
View directory record Official record
Conditions
Meningitis, Meningococcal Meningitis, Meningococcal Infections
Interventions
Meningococcal Polysaccharide (Serogroups A, C, Y, and W) Tetanus Toxoid Conjugate Vaccine, Meningococcal Polysaccharide Vaccine, Groups A, C, Y, and W-135 Combined
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
56 Years and older
Enrollment
907 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
35
States / cities
Chandler, Arizona • Anaheim, California • San Diego, California + 28 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Oct 25, 2026, 5:11 PM EDT
Terminated Phase 4 Interventional Results available

Ceftolozane-Tazobactam for Directed Treatment of Pseudomonas Aeruginosa Bacteremia and Pneumonia in Patients With Hematological Malignancies and Hematopoietic Stem Cell Transplantation

NCT04673175
View directory record Official record
Conditions
Pneumonia, Hematologic Malignancy, Pseudomonas Aeruginosa Infection, Bacteremia, Hematopoietic Stem Cell Transplant (HSCT)
Interventions
Ceftolozane / Tazobactam Injection
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of Tdap Vaccine Compared to DTaP Vaccine in Children 4 to 6 Years of Age

NCT00467519
View directory record Official record
Conditions
Tetanus, Diphtheria, Pertussis
Interventions
Tdap (Tetanus Toxoid Reduced Diphtheria Toxoid/Acellular Pertussis), DTaP (Diphtheria & Tetanus Toxoids & Acellular Pertussis Adsorbed)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
4 Years to 6 Years
Enrollment
1,045 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
42
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 34 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2014 · Synced Oct 25, 2026, 5:11 PM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Blood Donation Study for ALPCO Syphilis-T and Syphilis-NT Assay Development

NCT07830550
View directory record Official record
Conditions
Healthy Volunteers, Syphilis Serologic Assay Development, Blood Specimen Collection, Diagnostic Assay Development, Serum Specimen Collection
Interventions
ALPCO Syphilis-T, ALPCO Syphilis-NT CLIA Kits
Device
Lead sponsor
American Laboratory Products Company
Industry
Eligibility
22 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Salem, New Hampshire
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cholera Anti-Secretory Treatment Trial

NCT04150250
View directory record Official record
Conditions
Cholera
Interventions
iOWH032, Placebo, V. cholerae Challenge, Antibiotics
Drug · Other
Lead sponsor
PATH
Other
Eligibility
18 Years to 44 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2021 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of GSK's Tdap Vaccine (Boostrix) in Adults Aged 19 to 64 Years

NCT00346073
View directory record Official record
Conditions
Acellular Pertussis, Diphtheria, Tetanus
Interventions
Boostrix™, ADACEL®
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
19 Years to 64 Years
Enrollment
2,337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
42
States / cities
Huntsville, Alabama • Chandler, Arizona • Mesa, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2018 · Synced Oct 25, 2026, 5:11 PM EDT
Recruiting No phase listed Observational

Remote Sputum Collection in Cystic Fibrosis

NCT06950892
View directory record Official record
Conditions
Cystic Fibrosis, Infections
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
4
States / cities
Denver, Colorado • Baltimore, Maryland • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety Study of Inactivated Shigella Whole Cell Vaccine in Adults

NCT01509846
View directory record Official record
Conditions
Shigellosis
Interventions
Vaccine: 2.6±0.8 x 10^8 vp/mL, 1 dose, Vaccine: 2.6±0.8 x 10^9 vp/mL, 3 doses, Vaccine: 2.6±0.8 x 10^10 vp/mL, 3 doses, Vaccine: 2.6±0.8 x 10^11 vp/mL, 3 doses, Placebo: 1-3 doses
Biological
Lead sponsor
PATH
Other
Eligibility
18 Years to 45 Years
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 11, 2021 · Synced Oct 25, 2026, 5:11 PM EDT
Withdrawn Not applicable Interventional

Point-Of-Care Testing for Congenital Syphilis in Mothers and Newborns

NCT03814096
View directory record Official record
Conditions
Maternal Syphilis During Pregnancy - Baby Not Yet Delivered, Congenital Syphilis
Interventions
Syphilis Health Check POC-test (Diagnostics Direct LLC, NJ)
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
2
States / cities
San Jose, California • Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 13, 2019 · Synced Oct 25, 2026, 5:11 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Prospective Collection of Female Specimens for Testing With Gen-Probe APTIMA (Registered Trademark) Assays

NCT01728103
View directory record Official record
Conditions
Chlamydia Infections, Gonorrhea, Trichomonas Infections
Interventions
APTIMA® Trichomonas vaginalis & APTIMA® COMBO 2® Assays
Device
Lead sponsor
Gen-Probe, Incorporated
Industry
Eligibility
16 Years and older · Female only
Enrollment
1,336 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
14
States / cities
Birmingham, Alabama • San Diego, California • North Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2017 · Synced Oct 25, 2026, 5:11 PM EDT
Completed Phase 2 Interventional Results available

A Dose-Ranging Study Evaluating the Efficacy, Safety, and Tolerability of GSK2140944 in the Treatment of Uncomplicated Urogenital Gonorrhea Caused by Neisseria Gonorrhoeae

NCT02294682
View directory record Official record
Conditions
Gonorrhea
Interventions
GSK2140944
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
12
States / cities
Fountain Valley, California • Los Angeles, California • Palm Springs, California + 8 more
Source: ClinicalTrials.gov public record
Updated May 23, 2017 · Synced Oct 25, 2026, 5:11 PM EDT