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Showing 1–24 of 135 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Community-acquired Infections Clear all
Terminated Phase 1 Interventional Accepts healthy volunteers

A 2-Part First-in-Human Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Immunogenicity of CMTX-101

NCT05629741
View directory record Official record
Conditions
Community-acquired Pneumonia, Bacterial Pneumonia
Interventions
CMTX-101, Placebo
Drug
Lead sponsor
Clarametyx Biosciences, Inc.
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
8
States / cities
Augusta, Georgia • Idaho Falls, Idaho • Louisville, Kentucky + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2024 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Not applicable Interventional Results available

Prevention of Recurrent Infections Caused by Community Acquired Staphylococcus Aureus (CA-SA) in Children

NCT00901316
View directory record Official record
Conditions
Community-Acquired Staphylococcus Aureus
Interventions
Routine Measures Group, Bleach Bath Group (Bleach plus routine measures)
Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
3 Months to 18 Years
Enrollment
987 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 6, 2016 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial of Septra for Uncomplicated Skin Abscesses in Patients at Risk for Community Acquired Methicillin-Resistant Staphylococcus Aureus Infection

NCT00822692
View directory record Official record
Conditions
Abscess, Methicillin-Resistant Staphylococcus Aureus Infection
Interventions
Trim/ Sulfa DS, placebo
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
18 Years to 65 Years
Enrollment
139 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Dec 20, 2015 · Synced Jul 22, 2026, 1:01 PM EDT
Terminated Phase 1 Interventional

A Clinical Safety Study on AT-100 in Treating Adults With Severe COVID-19 Infection or Severed Community Acquired Pneumonia

NCT04659122
View directory record Official record
Conditions
COVID-19, Undefined
Interventions
AT-100
Biological
Lead sponsor
Airway Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Jul 22, 2026, 1:01 PM EDT
Completed No phase listed Observational

Tobacco Assessment and Intervention With Low-Income Persons Living With HIV-AIDS (PLWHA) in Community-Based AIDS Service Organizations

NCT01482923
View directory record Official record
Conditions
Tobacco Cessation, HIV, AIDS
Interventions
Treatment as usual, AIR (Aspirations, Inspiration, Respiration)
Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 3, 2019 · Synced Jul 22, 2026, 1:01 PM EDT
Recruiting Not applicable Interventional

Comparing Antibiotic Treatment Strategies for Children With Pneumonia in Outpatient Settings: (STAMPP)

NCT06986148
View directory record Official record
Conditions
Community Acquired Pneumonia (CAP), Community Acquired Pneumonia
Interventions
Immediate Antibiotic Prescribing Group Instructions, Safety Net Antibiotic Prescribing (SNAP) Group Instructions
Other
Lead sponsor
Ann & Robert H Lurie Children's Hospital of Chicago
Other
Eligibility
12 Months to 71 Months
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
4
States / cities
Atlanta, Georgia • Chicago, Illinois • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 26, 2026 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Not applicable Interventional

Directly Observed Therapy for Community-Released HIV+ Prisoners

NCT00786396
View directory record Official record
Conditions
HIV/AIDS, Substance Abuse
Interventions
Directly administered antiretroviral therapy
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
2
States / cities
Hartford, Connecticut • New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 19, 2014 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Not applicable Interventional

Using Probability of Community-Acquired Pneumonia to Tailor Antimicrobials Among Inpatients

NCT05976581
View directory record Official record
Conditions
Pneumonia, Pneumonia, Viral, Pneumonia, Bacterial
Interventions
Electronic alert, Structured communication of test results
Behavioral
Lead sponsor
Jonathan Baghdadi
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Jul 22, 2026, 1:01 PM EDT
Withdrawn Phase 3 Interventional

A P3 Comparator Trial in Community Acquired Bacterial Pneumonia

NCT02269644
View directory record Official record
Conditions
Community Acquired Pneumonia
Interventions
Dalbavancin, Linezolid, Linezolid Placebo, Azithromycin
Drug
Lead sponsor
Durata Therapeutics Inc., an affiliate of Allergan plc
Industry
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Butte, Montana
Source: ClinicalTrials.gov public record
Updated Jan 21, 2016 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy of AON-D21 in Severe Community-Acquired Pneumonia.

NCT05962606
View directory record Official record
Conditions
Community-acquired Pneumonia
Interventions
AON-D21, Placebo
Drug
Lead sponsor
Aptarion Biotech AG
Industry
Eligibility
18 Years to 85 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jul 22, 2026, 1:01 PM EDT
Recruiting Phase 4 Interventional

Short Versus Standard of Care Antibiotic Duration for Children Hospitalized for CAP

NCT06494072
View directory record Official record
Conditions
Community Acquired Pneumonia in Children
Interventions
Ampicillin for Injection, Ceftriaxone for Injection, Amoxicillin, Ampicillin / Sulbactam Injection, Amoxicillin-clavulanate, Clindamycin, Cefprozil, Levofloxacin
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
3 Months to 18 Years
Enrollment
236 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Jul 22, 2026, 1:01 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years

NCT06029933
View directory record Official record
Conditions
Influenza, Community-acquired Pneumonia, Cardiovascular Events
Interventions
Adjuvanted Quadrivalent Inactivated Influenza Vaccine (aIIV4), High-Dose Quadrivalent Inactivated Influenza Vaccine (HD-IIV4)
Biological
Lead sponsor
Kaiser Permanente
Other
Eligibility
65 Years and older
Enrollment
960,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Sep 7, 2023 · Synced Jul 22, 2026, 1:01 PM EDT
Completed No phase listed Observational Results available

Evaluating Modes of Influenza Transmission Observational Study of Community Acquired Influenza

NCT01769430
View directory record Official record
Conditions
Influenza Virus Infection Transmission in Humans
Interventions
Observational Study of influenza aerosol shedding -- No Intervention
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
10 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 24, 2025 · Synced Jul 22, 2026, 1:01 PM EDT
Not listed No phase listed Observational

Observational Study of Sepsis and Pneumonia to Develop Diagnostic Tests

NCT00258869
View directory record Official record
Conditions
Sepsis, Septicemia, Sepsis Syndrome, Shock, Septic, Community Acquired Pneumonia
Interventions
Not listed
Lead sponsor
National Center for Genome Resources
Other
Eligibility
6 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
3
States / cities
Detroit, Michigan • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 8, 2010 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 4 Interventional Results available

Pharmacodynamic of Ceftaroline and Levofloxacin Against Pathogens Associated With Community Acquired Bacterial Pneumonia

NCT01524302
View directory record Official record
Conditions
Pneumonia, Bacterial, Community-acquired
Interventions
Ceftaroline, Levofloxacin
Drug
Lead sponsor
Gary E. Stein, Pharm.D.
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 11, 2016 · Synced Jul 22, 2026, 1:01 PM EDT
Completed No phase listed Observational

Pulmonary Infections Masquerading as Community-Acquired Pneumonia

NCT00304395
View directory record Official record
Conditions
Pneumonia
Interventions
Not listed
Lead sponsor
Michael E. DeBakey VA Medical Center
Federal
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Jul 22, 2026, 1:01 PM EDT
Terminated Phase 2 Interventional Results available

Ticagrelor in Severe Community Acquired Pneumonia

NCT01998399
View directory record Official record
Conditions
Community Acquired Pneumonia, Severe
Interventions
Ticagrelor, Placebo
Drug
Lead sponsor
Gordon Bernard
Other
Eligibility
50 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
26
States / cities
Tucson, Arizona • Colorado Springs, Colorado • Denver, Colorado + 19 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2017 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 4 Interventional Results available

Trial to Evaluate Beta-Lactam Antimicrobial Therapy of Community Acquired Pneumonia in Children

NCT02891915
View directory record Official record
Conditions
Pneumonia
Interventions
Amoxicillin, Amoxicillin-clavulanate, Cefdinir, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 71 Months
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
9
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Louisville, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2021 · Synced Jul 22, 2026, 1:01 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

PrEP Intervention in Prince George's County, Maryland

NCT06141408
View directory record Official record
Conditions
Hiv, Mental Health Issue, Support, Family
Interventions
MPowerment PrEP Promotion Intervention
Behavioral
Lead sponsor
George Mason University
Other
Eligibility
18 Years and older · Male only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 1 Interventional Results available

Study to Evaluate the PK of PO Omadacycline in Adults With Community-Acquired Bacterial Pneumonia

NCT04160260
View directory record Official record
Conditions
Community-acquired Pneumonia
Interventions
Omadacycline
Drug
Lead sponsor
Paratek Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
13
States / cities
Birmingham, Alabama • San Diego, California • Clearwater, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Jul 22, 2026, 1:01 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-invasive Biometric Monitoring in Nursing Homes to Fight COVID-19

NCT04548895
View directory record Official record
Conditions
Covid19, Community-Acquired Respiratory Tract Infection
Interventions
Observational measurement of biometric data. No change to health care provided.
Device
Lead sponsor
Health Stream Analytics, LLC
Industry
Eligibility
Not listed
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Pasco, Washington
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Jul 22, 2026, 1:01 PM EDT
Completed No phase listed Observational

Prevention and Treatment Continuum for Youth at HIV Risk, Acutely Infected and With Established HIV Infection

NCT03205696
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
Antiretrovirals
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
12 Years to 24 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
3
States / cities
Los Angeles, California • New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

PrEPared and Strong: Clinic-Based PrEP for Black MSM

NCT02167386
View directory record Official record
Conditions
HIV/AIDS
Interventions
Enhanced PrEP Adherence, Standard PrEP Adherence
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Male only
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 16, 2018 · Synced Jul 22, 2026, 1:01 PM EDT
Completed Phase 4 Interventional Results available

Utility of Trimethoprim-sulfamethoxazole Use in Skin Abscess Management

NCT00679302
View directory record Official record
Conditions
Skin Diseases, Infectious
Interventions
Trimethoprim-sulfamethoxazole, Placebo group
Drug
Lead sponsor
St. Louis University
Other
Eligibility
3 Months to 18 Years
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 3, 2018 · Synced Jul 22, 2026, 1:01 PM EDT