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ClinicalTrials.gov public records Last synced Oct 25, 2026, 3:33 AM EDT

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Showing 337–360 of 608 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Gram Negative Infection Clear all
Terminated Phase 4 Interventional Results available

The Use of Inhaled Aztreonam in Children With a Tracheostomy Tube and Pseudomonas

NCT03158116
View directory record Official record
Conditions
Tracheostomy Infection
Interventions
Inhaled Aztreonam
Drug
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
7 Years to 21 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2021 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational

Risk Factors for Piperacillin/Tazobactam Resistance in Extended-Spectrum Beta-Lactamase (ESBL) Producing Organisms

NCT00573521
View directory record Official record
Conditions
Enterobacteriaceae Infections
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Oct 25, 2026, 3:33 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Novel Diagnostics for Early Lyme Disease

NCT03963635
View directory record Official record
Conditions
Lyme Disease
Interventions
MicroB-plex Lyme Immunoassay
Diagnostic Test
Lead sponsor
MicroB-plex, Inc.
Industry
Eligibility
21 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of a Booster Dose of Meningococcal Diphtheria Toxoid Conjugate Vaccine in Adolescents

NCT00777790
View directory record Official record
Conditions
Meningitis, Meningococcemia
Interventions
Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
13 Years to 21 Years
Enrollment
241 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
9
States / cities
Atlanta, Georgia • Marietta, Georgia • Woburn, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 14, 2014 · Synced Oct 25, 2026, 3:33 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Safety, and Efficacy Study of ShigETEC, a Live, Attenuated, Oral Combination Vaccine to Prevent Shigella and ETEC Disease Delivered to Healthy Adults Ages 18 to 50 Years Old

NCT07049159
View directory record Official record
Conditions
Shigella
Interventions
ShigETEC vaccine, Placebo, Challenge: Shigella flexneri 2457T at a dose of 1.5x10^3 CFU
Biological · Other
Lead sponsor
Eveliqure Biotechnologies GmbH
Industry
Eligibility
18 Years to 50 Years
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational

Perinatal Transmission of MDR Bacteria

NCT06148480
View directory record Official record
Conditions
E. Coli Infection, Multi-antibiotic Resistance
Interventions
Not listed
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
Female only
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Recruiting Phase 2 Interventional

Daily Doxycycline for Early Syphillis

NCT06683638
View directory record Official record
Conditions
Syphilis
Interventions
Doxycycline 200mg daily for 14 days
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 25, 2026, 3:33 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Rapid HIV, Hep C, and Syphilis Screening in a Rural Street Medicine Clinic

NCT07317687
View directory record Official record
Conditions
HIV Testing, HEPATITIS C (HCV), Syphilis, Hepatitis B Virus (HBV)
Interventions
Rapid Fingerstick Test, Blood Draw for lab test
Diagnostic Test
Lead sponsor
West Virginia University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Harpers Ferry, West Virginia
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis Disparities

NCT06428643
View directory record Official record
Conditions
Chlamydia, Gonorrhea, Hiv, Syphilis
Interventions
Chlamydia, gonorrhea, syphilis, and HIV screening
Other
Lead sponsor
Tulane University
Other
Eligibility
15 Years to 26 Years
Enrollment
2,322 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Safety Surveillance of MenACWY-CRM Vaccine in Children

NCT01452438
View directory record Official record
Conditions
Meningococcal Disease
Interventions
MenACWY-CRM
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
2 Years to 10 Years
Enrollment
393 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2015 · Synced Oct 25, 2026, 3:33 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

A Study to Evaluate Safety and Efficacy of TP-05 in Healthy Participants With Tick Exposure

NCT07562087
View directory record Official record
Conditions
Lyme Disease
Interventions
TP-05 (lotilaner) Low Dose, TP-05 (lotilaner) High Dose, Placebo
Drug
Lead sponsor
Tarsus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 70 Years
Enrollment
722 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
19
States / cities
Pikesville, Maryland • Brookline, Massachusetts • Fall River, Massachusetts + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 25, 2026, 3:33 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 Oct 25, 2026, 3:33 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

The Precision Mito- Mito Map COMPASS Study

NCT07856121
View directory record Official record
Conditions
Mitochondrial Diseases, Myalgic Encephalomyelitis Chronic Fatigue Syndrome, Post-COVID-19 Condition, Postural Orthostatic Tachycardia Syndrome, Lyme Disease, Post-Treatment Lyme Disease Syndrome, Fibromyalgia, Cancer-Related Fatigue, Neuromuscular Diseases, Fatigue, POLG-Related Disorders
Interventions
Mito Map Energy Score and Home Functional Assessments
Other
Lead sponsor
AI Agent Vault, Inc. d/b/a Precision Mito
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Fort Myers, Florida
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Descriptive, Post-marketing, Passive Surveillance Safety Study of ADACEL™ Vaccine

NCT00258882
View directory record Official record
Conditions
Pertussis
Interventions
Tetanus Toxoid, acellular pertussis, diphtheria toxoid
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
Not listed
Enrollment
327,293 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
3
States / cities
Oakland, California • Aurora, Colorado • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 17, 2018 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational

The Carrier Rates of Pseudomonas Aeruginosa in Family Members of Children With Cystic Fibrosis

NCT01616862
View directory record Official record
Conditions
Pseudomonas Aeruginosa, Cystic Fibrosis
Interventions
Not listed
Lead sponsor
Zafer Soultan
Other
Eligibility
5 Years to 19 Years
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

A Human Tick Kill Study to Investigate the Safety, Tolerability, and Whole Blood Concentration of TP-05

NCT05387083
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Low Dose TP-05, High Dose TP-05, Placebo Comparator
Drug
Lead sponsor
Tarsus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 59 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Study of Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed in Healthy Subjects

NCT02587520
View directory record Official record
Conditions
Tetanus, Diphtheria, Pertussis, Whooping Cough
Interventions
Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed Formulation 1, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 2, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 3, Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Formulation 4, Licensed Tetanus Toxoid, Reduced Diphtheria Toxoid, and Acellular Pertussis Vaccine Adsorbed, Licensed Tetanus Toxoid, Reduced Diphtheria Toxoid and Acellular Pertussis Vaccine
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
10 Years and older
Enrollment
1,363 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
20
States / cities
Birmingham, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Safety, Tolerability, Efficacy and Pharmacokinetics of Imipenem/Cilastatin/Relebactam (MK-7655A) in Pediatric Participants With Gram-negative Bacterial Infection (MK-7655A-021)

NCT03969901
View directory record Official record
Conditions
Suspected or Documented Gram-negative Bacterial Infection
Interventions
IMI/REL, Active Control, Oral Switch
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
Up to 17 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
8
States / cities
Tucson, Arizona • Long Beach, California • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Shigella CVD 31000: Study of Responses With Shigella-ETEC Vaccine Strain CVD 1208S-122

NCT04634513
View directory record Official record
Conditions
Shigella Infection, Enterotoxigenic Escherichia Coli Infection
Interventions
strain CVD 1208S-122, Placebo
Biological · Other
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 49 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study

NCT04543877
View directory record Official record
Conditions
Inflammation, Vaccine, Intestinal Permeability, Typhoid Fever
Interventions
Inulin, Maltodextrin, Ty21a Typhoid Fever Vaccine
Dietary Supplement · Biological
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Oct 25, 2026, 3:33 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Follow-up of Pregnant Women After a Mass Vaccination of Oral Cholera Vaccine (ShancholTM) in Nsanje Malawi

NCT02499172
View directory record Official record
Conditions
Miscarriage, Stillbirth, Cholera
Interventions
Shanchol
Biological
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
15 Years to 49 Years · Female only
Enrollment
2,758 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 3, 2024 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational

Community-associated Highly-Resistant Enterobacterales

NCT03924934
View directory record Official record
Conditions
Enterobacteriaceae Infections, Community-Acquired Infections, Healthcare Associated Infection, Carbapenem-Resistant Enterobacteriaceae Infection
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
2,172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 29, 2025 · Synced Oct 25, 2026, 3:33 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Vouchers to Promote Tdap Vaccination

NCT01860378
View directory record Official record
Conditions
Whooping Cough
Interventions
Full price, $5 off
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years and older
Enrollment
149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 3, 2015 · Synced Oct 25, 2026, 3:33 AM EDT
Completed No phase listed Observational

Specimen Collection Study for H. Pylori Testing

NCT02970110
View directory record Official record
Conditions
Helicobacter Infections
Interventions
Not listed
Lead sponsor
Biomerica
Industry
Eligibility
21 Years to 75 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
4
States / cities
Tucson, Arizona • Los Angeles, California • Medley, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 25, 2026, 3:33 AM EDT