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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Safety and Efficacy Study of Meningococcal Group B Vaccine rMenB+OMV NZ (Bexsero) to Prevent Gonococcal Infection

NCT04350138
View directory record Official record
Conditions
Gonococcal Infection
Interventions
Meningococcal Group B Vaccine, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
2,606 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
10
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 3 Interventional

A Randomized, Double-Blind, Placebo-Controlled, Multicenter Trial of the Safety and Efficacy of Ceftriaxone and Doxycycline in the Treatment of Patients With Seropositive Chronic Lyme Disease

NCT00001101
View directory record Official record
Conditions
Lyme Disease
Interventions
ceftriaxone, doxycycline
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2001
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 26, 2010 · Synced Jul 22, 2026, 3:58 PM EDT
Terminated No phase listed Observational

CD8 Reactivity to Microorganisms in Blood and Breast Milk

NCT03084614
View directory record Official record
Conditions
Immune Modulation, Tuberculosis, Leprosy, Pertussis, Lyme Disease
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 13, 2019 · Synced Jul 22, 2026, 3:58 PM EDT
Terminated Phase 3 Interventional

Phase III Randomized Study of SYNSORB Pk in Children With E. Coli-Associated Hemolytic Uremic Syndrome

NCT00004465
View directory record Official record
Conditions
Hemolytic Uremic Syndrome
Interventions
SYNSORB Pk, Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
6 Months to 18 Years
Enrollment
145 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2001
U.S. locations
26
States / cities
Denver, Colorado • Wilmington, Delaware • Atlanta, Georgia + 23 more
Source: ClinicalTrials.gov public record
Updated May 31, 2017 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immunogenicity and Safety of Pediatric Vaccines When Administered With Menactra® in Healthy Toddlers

NCT00422292
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Meningococcal Polysaccharide Diphtheria Conjugate Vaccine, Measles, Mumps, Rubella and Varicella
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
9 Months to 12 Months
Enrollment
1,664 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
87
States / cities
Tuscaloosa, Alabama • Tucson, Arizona • Jonesboro, Arkansas + 74 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jul 22, 2026, 3:58 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 12, 2019 · Synced Jul 22, 2026, 3:58 PM EDT
Enrolling by invitation No phase listed Observational

Xpert® Tropical Fever Test on GeneXpert® Edge X System

NCT07520279
View directory record Official record
Conditions
Malaria Fever, Zika, Dengue Fever, Leptospirosis, Chikungunya Virus Infection
Interventions
Xpert Tropical Fever test
Diagnostic Test
Lead sponsor
Cepheid
Industry
Eligibility
14 Years and older
Enrollment
2,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jul 22, 2026, 3:58 PM EDT
Completed No phase listed Observational

Role of Toxins in Lung Infections Caused by Pseudomonas Aeruginosa

NCT00027183
View directory record Official record
Conditions
Pseudomonas Infection, Cystic Fibrosis
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
9 Years to 99 Years
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 5, 2022 · Synced Jul 22, 2026, 3:58 PM EDT
Recruiting Phase 1 Interventional

Bacteriophage Therapy in Spinal Cord Injury Patients With Bacteriuria

NCT06559618
View directory record Official record
Conditions
Bacteriuria, Spinal Cord Injuries, Asymptomatic Bacteriuria, Escherichia Coli
Interventions
Phage Therapy, Placebo
Drug · Other
Lead sponsor
Barbara Trautner
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
2
States / cities
St Louis, Missouri • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Results available

A Study of the Dosing, Efficacy, and Safety of Oral Cysteamine in Adult Patients With Cystic Fibrosis Exacerbations

NCT03000348
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Cysteamine, Placebo Oral Capsule
Drug
Lead sponsor
NovaBiotics Ltd.
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
8
States / cities
Tucson, Arizona • San Francisco, California • Gainesville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

mLab App Plus: A Randomized Controlled Trial of a Mobile Health (mHealth) Intervention

NCT06059443
View directory record Official record
Conditions
HIV Infections, Sexually Transmitted Diseases, Viral, Syphilis
Interventions
mLab App Plus
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 39 Years · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
New York, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 4, 2025 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Consistency & Immunogenicity Study of 3 Lots of GSK's Hib Conjugate Vaccine Versus ActHIB & Pentacel in Healthy Infants

NCT01000974
View directory record Official record
Conditions
Haemophilus Influenzae Type b
Interventions
GSK Biologicals' Haemophilus influenzae type b vaccine (GSK 208108), ActHIB™, Pentacel™, Pediarix™, Prevnar 13™, Rotarix™, Engerix™-B, Infanrix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Weeks to 12 Weeks
Enrollment
4,003 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
63
States / cities
Dothan, Alabama • Benton, Arkansas • Fayetteville, Arkansas + 59 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2018 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of 2 Doses of Menactra®, a Meningococcal Conjugate Vaccine in Healthy Toddlers

NCT00384397
View directory record Official record
Conditions
Meningococcal Meningitis, Measles, Mumps, Rubella, Varicella
Interventions
Meningococcal Polysaccharide Diphtheria Toxoid Conjugate Vaccine, Meningococcal Polysaccharide Diphtheria Toxoid Conjugate
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
249 Days to 305 Days
Enrollment
1,128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
39
States / cities
Montgomery, Alabama • Fayetteville, Arkansas • Jonesboro, Arkansas + 35 more
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Not applicable Interventional

A Pilot Study Evaluating Penicillin G and Ceftriaxone as Therapies for Presumed Neurosyphilis in HIV Seropositive Individuals

NCT00000648
View directory record Official record
Conditions
HIV Infections, Neurosyphilis
Interventions
Penicillin G potassium, Ceftriaxone sodium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1996
U.S. locations
42
States / cities
Birmingham, Alabama • San Diego, California • San Francisco, California + 23 more
Source: ClinicalTrials.gov public record
Updated Oct 26, 2021 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Early Bactericidal Activity of Linezolid, Gatifloxacin, Levofloxacin, Isoniazid (INH) and Moxifloxacin in HIV Negative Adults With Initial Episodes of Sputum Smear-Positive Pulmonary Tuberculosis

NCT00396084
View directory record Official record
Conditions
Tuberculosis
Interventions
Gatifloxacin, Isoniazid, Levofloxacin, Linezolid, Moxifloxacin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 7, 2018 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 2 Interventional

Aztreonam for Inhalation (AI) in Patients With Cystic Fibrosis & P. Aeruginosa Infection

NCT01055847
View directory record Official record
Conditions
Cystic Fibrosis, CF, Lung Infection, Pseudomonas Aeruginosa
Interventions
Aztreonam for Inhalation (AI), Placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
13 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
20
States / cities
Los Angeles, California • Orange, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2010 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 1Phase 2 Interventional

A Double-Blind, Active-Controlled, Multiple-Ascending Dose Study of Aerosolized RSP-1502 in Subjects With CF and Chronic PA Lung Infection

NCT06016088
View directory record Official record
Conditions
Cystic Fibrosis Lung, Respiratory Infections, Recurrent, Chronic, Pseudomonas Aeruginosa
Interventions
RSP-1502, Tobramycin inhalation solution
Drug
Lead sponsor
Respirion Pharmaceuticals Pty Ltd
Industry
Eligibility
12 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
13
States / cities
Tucson, Arizona • Los Angeles, California • Palo Alto, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 22, 2026, 3:58 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 19, 2024 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Pentavalent DTaP-Hep B-IPV

NCT00133445
View directory record Official record
Conditions
Diphtheria, Hepatitis B, Poliomyelitis, Pertussis, Tetanus
Interventions
DTaP-Hep B-IPV Vaccine, Monovalent Hep B Vaccine, Placebo
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Up to 5 Days
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2011 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of Menactra® in US Adolescents When Administered Concomitantly With Tdap Vaccine

NCT00777257
View directory record Official record
Conditions
Meningitis, Meningococcemia, Pertussis, Tetanus, Diphtheria
Interventions
T dap + Meningococcal Polysaccharide Diphtheria Toxoid Conj., Tdap + Meningococcal Polysaccharide Diphtheria Toxoid Conj., Meningococcal Polysaccharide Diphtheria Toxoid Conj. + T dap
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
11 Years to 17 Years
Enrollment
1,345 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
20
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Boulder, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Post-licensure, Modified Double-blind, Multi-center Study Evaluating Safety and Immunogenicity of ADACEL® and BOOSTRIX®

NCT00319553
View directory record Official record
Conditions
Pertussis, Tetanus, Diphtheria
Interventions
ADACEL®:Tetanus, Reduced Diphtheria and Acellular Pertussis Adsorbed, BOOSTRIX®: Tetanus, Reduced Diphtheria and Acellular Pertussis Adsorbed
Biological
Lead sponsor
Sanofi
Industry
Eligibility
11 Years to 18 Years
Enrollment
647 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
10
States / cities
Annapolis, Maryland • Baltimore, Maryland • Frederick, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2012 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study on the Safety, Effectiveness and Immune Response of Meningococcal Combined ABCWY Vaccine in Healthy Adolescents and Adults

NCT04886154
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
MenABCWY-2Gen low dose vaccine, MenABCWY-2Gen high dose vaccine, Placebo, MenB vaccine, MenACWY vaccine
Combination Product · Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 50 Years
Enrollment
1,440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
12
States / cities
Colorado Springs, Colorado • Longmont, Colorado • Doral, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Check it: A New Approach to Controlling Chlamydia Transmission in Young People

NCT03098329
View directory record Official record
Conditions
Chlamydia Trachomatis Infection, Gonorrhea
Interventions
Ct/GC screening
Other
Lead sponsor
Tulane University
Other
Eligibility
15 Years to 26 Years · Male only
Enrollment
1,907 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Jul 22, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

LMN-101 in a Campylobacter Human Challenge Model

NCT04182490
View directory record Official record
Conditions
Campylobacter Infections
Interventions
LMN-101, Placebo
Biological · Drug
Lead sponsor
Lumen Bioscience, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 24, 2025 · Synced Jul 22, 2026, 3:58 PM EDT