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ClinicalTrials.gov public records Last synced Oct 16, 2026, 10:43 PM EDT

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Showing 49–72 of 228 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: azithromycin Clear all
Completed Phase 4 Interventional

Azithromycin Dose and PPROM Treatment: a Pilot Randomized Controlled Trial

NCT04294069
View directory record Official record
Conditions
Preterm Premature Rupture of Membrane
Interventions
Azithromycin 500 mg, Azithromycin Oral Product
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
14 Years to 65 Years · Female only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 16, 2026, 10:43 PM EDT
Terminated Phase 4 Interventional

Childhood Asthma Research and Education (CARE) Network Trial - Montelukast or Azithromycin for Reduction of Inhaled Corticosteroids in Childhood Asthma (MARS)

NCT00471809
View directory record Official record
Conditions
Asthma
Interventions
Budesonide + Salmeterol + Azithromycin, Budesonide + Salmeterol + Montelukast, Budesonide + Salmeterol + Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
6 Years to 17 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
6
States / cities
Tucson, Arizona • Los Angeles, California • San Diego, California + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2016 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 3 Interventional

A Multicenter, Randomized, Double-Blind, Double-Dummy Comparative Trial of Azithromycin Sustained Release Versus 3-Day Azithromycin for the Treatment of Strep Throat in Adolescents and Adults

NCT00644293
View directory record Official record
Conditions
Pharyngitis, Tonsillitis
Interventions
azithromycin (Zithromax), placebo, azithromycin SR
Drug
Lead sponsor
Pfizer
Industry
Eligibility
13 Years and older
Enrollment
598 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
16
States / cities
Clearwater, Florida • Boise, Idaho • Meridian, Idaho + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2011 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 1 Interventional Results available

Investigation of the Efficacy of Antibiotics on Pulmonary Sarcoidosis

NCT01169038
View directory record Official record
Conditions
Pulmonary Sarcoidosis, Lung Function
Interventions
levaquin; ethambutol; rifampin and azithromycin.
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 31, 2012 · Synced Oct 16, 2026, 10:43 PM EDT
Terminated Phase 2 Interventional Results available

Pragmatic Factorial Trial of Hydroxychloroquine, Azithromycin, or Both for Treatment of Severe SARS-CoV-2 Infection

NCT04335552
View directory record Official record
Conditions
SARS-CoV-2
Interventions
Standard of care, Hydroxychloroquine, Azithromycin
Other · Drug
Lead sponsor
Duke University
Other
Eligibility
12 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
4
States / cities
Durham, North Carolina • Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Relative Bioavailability Study of 200mg/5 mL Azithromycin Oral Suspension Under Non-Fasting Conditions

NCT00830336
View directory record Official record
Conditions
Healthy
Interventions
Azithromycin, Zithromax®
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 20, 2024 · Synced Oct 16, 2026, 10:43 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Researchers At UC San Diego Are Learning About the Benefits of Human Milk and How It Influences Infant and Child Health

NCT05553743
View directory record Official record
Conditions
Breastfeeding, COVID-19 Infection, COVID-19 Vaccine, Remdesivir, Antibiotics
Interventions
COVID-19 Exposure, Antibiotic
Biological · Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older · Female only
Enrollment
5,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2040
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 31, 2025 · Synced Oct 16, 2026, 10:43 PM EDT
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 Oct 16, 2026, 10:43 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Early Versus Expectant Treatment of Ureaplasma Infection in Very Low Birth Weight Neonates

NCT00599053
View directory record Official record
Conditions
Bacteria Infection, Respiratory Tract Infections
Interventions
Azithromycin
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 3 Days
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated May 17, 2017 · Synced Oct 16, 2026, 10:43 PM EDT
Active, not recruiting Phase 3 Interventional

Erythromycin Versus Azithromycin for Preterm Prelabor Rupture of Membranes

NCT06273891
View directory record Official record
Conditions
Premature Rupture of Membrane
Interventions
Erythromycin, Azithromycin
Drug
Lead sponsor
Inova Health Care Services
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
2
States / cities
Falls Church, Virginia • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 2 Interventional

Antibiotic Treatment Trial Directed Against Chlamydia Pneumonia in Multiple Sclerosis

NCT00043264
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Rifampin, Azithromycin
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 3 Interventional

A Multicenter, Randomized, Double-Blind, Double-Dummy Trial of Azithromycin SR Compared With Levofloxacin for the Treatment of Sinus Infections in Adults

NCT00643409
View directory record Official record
Conditions
Maxillary Sinusitis
Interventions
azithromycin SR (Zithromax; compound: CP-62,993), placebo, levofloxacin
Drug · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
541 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
59
States / cities
Alabaster, Alabama • Birmingham, Alabama • Hueytown, Alabama + 37 more
Source: ClinicalTrials.gov public record
Updated May 11, 2011 · Synced Oct 16, 2026, 10:43 PM EDT
Terminated Phase 2 Interventional Results available

Atovaquone and Azithromycin Combination for Confirmed COVID-19 Infection

NCT04339426
View directory record Official record
Conditions
Covid19
Interventions
Atovaquone/Azithromycin
Drug
Lead sponsor
HonorHealth Research Institute
Other
Eligibility
18 Years to 95 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 2 Interventional Results available

Personalized Treatment Algorithms for Difficult-to-treat Asthma

NCT04179461
View directory record Official record
Conditions
Asthma in Children
Interventions
Cholecalciferol, antihistamine, Azithromycin, emollient cream, Fluticasone Propionate, Asthma Controller Medication
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 17 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 20, 2021 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 2 Interventional Results available

Antibiotic Treatment Trial for the PANDAS/PANS Phenotype

NCT01617083
View directory record Official record
Conditions
PANS, PANDAS, Obsessive Compulsive Disorder (OCD)
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of South Florida
Other
Eligibility
4 Years to 14 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Apr 10, 2018 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fed Study of Azithromycin Tablets 600 mg to Zithromax® Tablets 600 mg

NCT00649935
View directory record Official record
Conditions
Healthy
Interventions
Azithromycin Tablets 600 mg, Zithromax® Tablets 600 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced Oct 16, 2026, 10:43 PM EDT
Withdrawn Phase 4 Interventional

Outpatient Registry Trial of Respiratory Tract Infections in Adults

NCT00245453
View directory record Official record
Conditions
Pneumonia, Bacterial, Bronchitis, Chronic
Interventions
azithromycin, telithromycin, Clarythromycin
Drug
Lead sponsor
CPL Associates
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Louisville, Kentucky • Slidell, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 28, 2015 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 3 Interventional

A Study to Evaluate the Clinical Efficacy and Safety of Tobradex® ST Compared to Azasite® in the Treatment of Subjects With Moderate to Severe Chronic Blepharitis

NCT01102244
View directory record Official record
Conditions
Blepharitis
Interventions
Tobradex ST, Azasite
Drug
Lead sponsor
Alcon Research
Industry
Eligibility
18 Years and older
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 11, 2012 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Lipids of the Human Tear Film and Their Effect on Tear Stability

NCT00803452
View directory record Official record
Conditions
Blepharitis
Interventions
doxycycline, azithromycin
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 80 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 22, 2017 · Synced Oct 16, 2026, 10:43 PM EDT
Terminated Phase 4 Interventional

Study Comparing the Clinical Efficacy and Health Outcomes of Outpatients With Mild to Moderate Community-Acquired Pneumonia (CAP) Treated With Either Telithromycin Once Daily for 7 Days, or Azithromycin Once Daily for 5 Days

NCT00237445
View directory record Official record
Conditions
Pneumonia
Interventions
telithromycin, azithromycin
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Bridgewater, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 11, 2011 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Phase 2 Interventional

Tolerance, Safety, and Activity of Rifapentine Alone and in Combination Therapy in AIDS Patients With Mycobacterium Avium Complex Bacteremia.

NCT00002192
View directory record Official record
Conditions
Mycobacterium Avium-Intracellulare Infection, HIV Infections
Interventions
Rifapentine, Ethambutol hydrochloride, Clarithromycin, Azithromycin
Drug
Lead sponsor
Anderson Clinical Research
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Hampton, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 16, 2026, 10:43 PM EDT
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 Oct 16, 2026, 10:43 PM EDT
Completed No phase listed Observational

A Study of Fluoroquinolones Exposure and Collagen-Related Serious Adverse Events

NCT03479736
View directory record Official record
Conditions
Retinal Detachment, Achilles Tendon, Aneurysm, Dissecting
Interventions
Oral Fluoroquinolones (FQ), Other Antibiotics, Febrile Illness Not Treated with Antibiotics Will be Analyzed as an Exposure
Drug · Other
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
Not listed
Enrollment
117,911 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Titusville, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Oct 16, 2026, 10:43 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Treatment of Nontuberculous Mycobacterial Infection in Cystic Fibrosis

NCT02372383
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
Ethambutol, Rifampin, Azithromycin, Pancrelipase
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
16 Years to 45 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Oct 16, 2026, 10:43 PM EDT