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ClinicalTrials.gov public records Last synced Nov 12, 2026, 10:42 PM EST

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Showing 145–168 of 228 matching trials from the live ClinicalTrials.gov search.
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Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study of AzaSite Versus Vigamox in the Tears of Healthy Volunteers

NCT00575367
View directory record Official record
Conditions
Bacterial Infections, Eye Infections
Interventions
AzaSite (azithromycin ophthalmic solution), Vigamox (moxifloxacin hydrochloride ophthalmic solution)
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 22, 2011 · Synced Nov 12, 2026, 10:42 PM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Healthy Patients & Effect of Antibiotics

NCT03098485
View directory record Official record
Conditions
Microbiota, Anti-bacterial Agents
Interventions
Levofloxacin, Azithromycin, Cefpodoxime
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 10, 2022 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 2 Interventional Results available

Non-comparative Trial of the Combination of HCQ and AZI in the Treatment of ICU Patients

NCT04458948
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 13, 2023 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 4 Interventional

Study to Measure the Impact of Antibiotics on Bacterial Flora in Adults With Acute Sinusitis

NCT00245440
View directory record Official record
Conditions
Maxillary Sinusitis
Interventions
Azithromycin, Telithromycin
Drug
Lead sponsor
CPL Associates
Other
Eligibility
18 Years to 75 Years
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Taylors, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 31, 2007 · Synced Nov 12, 2026, 10:42 PM EST
Recruiting Phase 3 Interventional

Azithromycin Treatment for Respiratory Syncytial Virus-induced Respiratory Failure in Children

NCT05026749
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
AZM Group, Control Group
Drug · Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
3 Days to 2 Years
Enrollment
370 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
15
States / cities
Birmingham, Alabama • San Francisco, California • New Haven, Connecticut + 12 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2026 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 3 Interventional Results available

Treatment Failure of Chlamydial Infection in Males and Females in Youth Correctional Facilities

NCT00980148
View directory record Official record
Conditions
Chlamydial Infection
Interventions
Azithromycin, Doxycycline
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years to 21 Years
Enrollment
567 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
2
States / cities
Birmingham, Alabama • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 5, 2026 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Phase II Investigation of Antimycobacterial Therapy on Progressive, Pulmonary Sarcoidosis

NCT02024555
View directory record Official record
Conditions
Sarcoidosis; Antimycobacterial Therapy
Interventions
Levofloxacin, Ethambutol, Azithromycin, Rifampin, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
6
States / cities
Albany, New York • Cincinnati, Ohio • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Targeted Therapy of Bronchiolitis Obliterans Syndrome

NCT01307462
View directory record Official record
Conditions
Bronchiolitis Obliterans
Interventions
fluticasone propionate, montelukast sodium, azithromycin
Drug
Lead sponsor
Stephanie Lee
Other
Eligibility
6 Years to 99 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
11
States / cities
Scottsdale, Arizona • Stanford, California • Tampa, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 4, 2017 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 4 Interventional Results available

Duration of Antibiotic Therapy as Part of Maximal Medical Therapy for Chronic Rhinosinusitis

NCT01825408
View directory record Official record
Conditions
Sinusitis
Interventions
Doxycycline, Azithromycin, Augmentin
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 4, 2017 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Prospective Pilot Clinical Trial of Azithromycin Treatment In Respiratory Syncytial Virus (RSV)- Induced Respiratory Failure In Children

NCT02707523
View directory record Official record
Conditions
Respiratory Syncytial Virus
Interventions
Azithromycin 10 mg, Azithromycin 20mg, Placebo
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
Up to 16 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 2 Interventional

The Effects of Azithromycin Ophthalmic Solution, 1% Versus Placebo in Subjects With Blepharitis During a Two-Week Treatment Period

NCT00892970
View directory record Official record
Conditions
Blepharitis
Interventions
Azithromycin ophthalmic solution, 1%, Placebo
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
313 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
33
States / cities
Little Rock, Arkansas • Artesia, California • Azusa, California + 29 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2011 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 2Phase 3 Interventional Results available

Safety and Efficacy of Solithromycin in Adolescents and Children With Community-Acquired Bacterial Pneumonia

NCT02605122
View directory record Official record
Conditions
Community-acquired Bacterial Pneumonia
Interventions
Solithromycin, Standard of Care
Drug
Lead sponsor
Melinta Therapeutics, Inc.
Industry
Eligibility
2 Months to 17 Years
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
21
States / cities
Little Rock, Arkansas • Los Angeles, California • Sacramento, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jan 3, 2019 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 3 Interventional

Roflumilast or Azithromycin to Prevent COPD Exacerbations Trial

NCT04069312
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease Severe, Chronic Bronchitis
Interventions
Roflumilast, Azithromycin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
40 Years and older
Enrollment
1,032 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
28
States / cities
Birmingham, Alabama • Tucson, Arizona • Sacramento, California + 23 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2026 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 3 Interventional

A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Levofloxacin for the Treatment of Mild to Moderate Pneumonia in Adult Patients

NCT00643734
View directory record Official record
Conditions
Pneumonia
Interventions
azithromycin sustained release, placebo, levofloxacin
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
468 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
35
States / cities
Mesa, Arizona • Phoenix, Arizona • San Luis Obispo, California + 28 more
Source: ClinicalTrials.gov public record
Updated Mar 26, 2008 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 3 Interventional

Treatment in Patients With Suspected or Confirmed COVID-19 With Early Moderate or Severe Disease

NCT04344444
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin
Drug
Lead sponsor
LCMC Health
Other
Eligibility
18 Years to 100 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 21, 2022 · Synced Nov 12, 2026, 10:42 PM EST
Completed Not applicable Interventional

Standard vs. Biofilm Susceptibility Testing in Cystic Fibrosis (CF)

NCT00153634
View directory record Official record
Conditions
Cystic Fibrosis, Chronic Bronchitis
Interventions
IV amikacin, PO azithromycin, IV ceftazidime, PO ciprofloxacin, IV meropenem, IV piperacillin-tazobactam, IV ticarcillin-clavulanate, IV tobramycin
Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
14 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
8
States / cities
Iowa City, Iowa • St Louis, Missouri • Cincinnati, Ohio + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2008 · Synced Nov 12, 2026, 10:42 PM EST
Completed Phase 4 Interventional Accepts healthy volunteers

Treatment of Bacterial Vaginosis

NCT00324818
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
metronidazole and azithromycin
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2006
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 1, 2017 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 3 Interventional Results available

Hydroxychloroquine,Hydroxychloroquine,Azithromycin in the Treatment of SARS CoV-2 Infection

NCT04341727
View directory record Official record
Conditions
Coronavirus Infection
Interventions
Hydroxychloroquine Sulfate, Azithromycin, Chloroquine Sulfate
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 25, 2024 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 3 Interventional Results available

AZithromycin Therapy in Preschoolers With a Severe Wheezing Episode Diagnosed at the Emergency Department

NCT04669288
View directory record Official record
Conditions
Asthma, Wheezing
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Months to 60 Months
Enrollment
840 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
8
States / cities
Atlanta, Georgia • Boston, Massachusetts • New York, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 3 Interventional Results available

Azithromycin for COVID-19 Treatment in Outpatients Nationwide

NCT04332107
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
Azithromycin, Placebos
Drug
Lead sponsor
Thomas M. Lietman
Other
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Nov 12, 2026, 10:42 PM EST
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 Nov 12, 2026, 10:42 PM EST
Completed Phase 2 Interventional Results available

Hydroxychloroquine vs. Azithromycin for Hospitalized Patients With Suspected or Confirmed COVID-19

NCT04329832
View directory record Official record
Conditions
COVID-19
Interventions
Hydroxychloroquine, Azithromycin
Drug
Lead sponsor
Intermountain Health Care, Inc.
Other
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
2
States / cities
Murray, Utah • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 20, 2022 · Synced Nov 12, 2026, 10:42 PM EST
Terminated Phase 4 Interventional Accepts healthy volunteers

Intrapulmonary Pharmacokinetics of Antibiotics

NCT00315601
View directory record Official record
Conditions
Healthy
Interventions
Telithromycin, azithromycin, bronchoalveolar lavage
Drug · Procedure
Lead sponsor
University of Illinois Chicago
Other
Eligibility
18 Years to 55 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 13, 2009 · Synced Nov 12, 2026, 10:42 PM EST
Completed Not applicable Interventional

A Study to Learn More About MAC Disease and the Use of Anti-HIV Drugs in Patients With Advanced HIV Infection

NCT00000895
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Nelfinavir mesylate, Nevirapine, Azithromycin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2001
U.S. locations
26
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 17 more
Source: ClinicalTrials.gov public record
Updated Oct 29, 2021 · Synced Nov 12, 2026, 10:42 PM EST