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ClinicalTrials.gov public records Last synced Oct 23, 2026, 1:49 PM EDT

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Showing 1–24 of 74 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo Azithromycin Clear all
Completed Phase 4 Interventional Results available

Testing the Effect of Adding Chronic Oral Azithromycin to Inhaled Tobramycin in People With Cystic Fibrosis (CF)

NCT02677701
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
azithromycin, placebo (for azithromycin), inhaled tobramycin
Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
12 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
39
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2021 · Synced Oct 23, 2026, 1:49 PM EDT
Terminated Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Treatment for COVID-19 in High-Risk Adult Outpatients

NCT04354428
View directory record Official record
Conditions
COVID-19, SARS-CoV-2
Interventions
Ascorbic Acid, Hydroxychloroquine Sulfate, Azithromycin, Folic Acid, Lopinavir 200 MG / Ritonavir 50 MG [Kaletra]
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 80 Years
Enrollment
289 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
6
States / cities
Chicago, Illinois • New Orleans, Louisiana • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Mortality Reduction After Oral Azithromycin: Mortality Study

NCT02047981
View directory record Official record
Conditions
Childhood Mortality
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
1 Month to 60 Months
Enrollment
190,238 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
2
States / cities
San Francisco, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 8, 2022 · Synced Oct 23, 2026, 1:49 PM EDT
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 Oct 23, 2026, 1:49 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 23, 2026, 1:49 PM EDT
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 Oct 23, 2026, 1:49 PM EDT
Completed Phase 3 Interventional

Study to Evaluate ALIS (Amikacin Liposome Inhalation Suspension) in Participants With Nontuberculous Mycobacterial Lung Infection Caused by Mycobacterium Avium Complex

NCT04677569
View directory record Official record
Conditions
Mycobacterium Infections, Nontuberculous
Interventions
ALIS, Azithromycin, Ethambutol, ELC (matching placebo for ALIS)
Drug
Lead sponsor
Insmed Incorporated
Industry
Eligibility
18 Years and older
Enrollment
425 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
90
States / cities
Birmingham, Alabama • Fresno, California • Los Angeles, California + 71 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Oct 23, 2026, 1:49 PM EDT
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 Oct 23, 2026, 1:49 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of Azithromycin on MAC Disease Prevention in HIV-Positive Patients

NCT00000947
View directory record Official record
Conditions
Mycobacterium Avium-intracellulare Infection, HIV Infections
Interventions
Azithromycin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2000
U.S. locations
19
States / cities
San Francisco, California • Denver, Colorado • Washington D.C., District of Columbia + 11 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Phase 3 Interventional Results available

Treatment of Preschool Children With Upper Respiratory Tract Illnesses Using Azythromycin and Lower Respiratory Tract Symptoms Using Oral Corticosteroids.

NCT01272635
View directory record Official record
Conditions
Asthma, Wheezing
Interventions
Azithromycin, Prednisolone, Placebo Azithromycin, Placebo Prednisolone
Drug · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
12 Months to 71 Months
Enrollment
607 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
16
States / cities
Tucson, Arizona • Oakland, California • San Francisco, California + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2016 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Not applicable Interventional Results available

The Anti-inflammatory Effect of Prophylactic Macrolides on Children With Chronic Lung Disease

NCT02544984
View directory record Official record
Conditions
Chronic Lung Disease
Interventions
Azithromycin, placebo
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
6 Months to 6 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 6, 2018 · Synced Oct 23, 2026, 1:49 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Study to Determine the Effect of Azasite on Corneal Surface Irregularity

NCT01797107
View directory record Official record
Conditions
Meibomian Gland Dysfunction
Interventions
Azasite
Drug
Lead sponsor
Philadelphia Eye Associates
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 28, 2016 · Synced Oct 23, 2026, 1:49 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Azithromycin Prophylaxis for PRElabor CEsarean DElivery Trial

NCT06605118
View directory record Official record
Conditions
Obstetrical Complications, Labor and Delivery Complication, Cesarean Delivery
Interventions
Azithromycin Injection, Placebo, Standard of Care Preoperative antibiotics
Drug
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
Female only
Enrollment
8,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
14
States / cities
Birmingham, Alabama • San Francisco, California • Chicago, Illinois + 10 more
Source: ClinicalTrials.gov public record
Updated Apr 9, 2026 · Synced Oct 23, 2026, 1:49 PM EDT
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 Oct 23, 2026, 1:49 PM EDT
Completed Phase 3 Interventional Results available

OPTIMIZing Treatment for Early Pseudomonas Aeruginosa Infection in Cystic Fibrosis

NCT02054156
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
azithromycin, placebo, Tobramycin solution for inhalation
Drug
Lead sponsor
Bonnie Ramsey
Other
Eligibility
6 Months to 18 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
45
States / cities
Anchorage, Alaska • Tucson, Arizona • Little Rock, Arkansas + 40 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Oct 23, 2026, 1:49 PM EDT
Terminated Phase 4 Interventional Results available

Azithromycin for Meibomian Gland Disease

NCT03953118
View directory record Official record
Conditions
Dry Eye, Neuropathic Eye Pain, Ocular Microbiome, Depression, Anxiety
Interventions
Azithromycin Oral Product, Placebo Oral
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2025 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Not applicable Interventional

A Study of Azithromycin in the Prevention of Mycobacterium Avium Complex Disease (MAC) in HIV-Infected Patients

NCT00002309
View directory record Official record
Conditions
Mycobacterium Avium-Intracellulare Infection, HIV Infections
Interventions
Azithromycin
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
3
States / cities
San Diego, California • Fort Bragg, North Carolina • Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 23, 2026, 1:49 PM EDT
Completed No phase listed Observational Results available

Effect of Macrolide Antibiotics on Airway Inflammation in People With Chronic Obstructive Pulmonary Disease (COPD)

NCT00549445
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
40 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 29, 2017 · Synced Oct 23, 2026, 1:49 PM EDT
Recruiting Phase 3 Interventional

A Study to Test How Effective Belumosudil Tablets Are for Treating Adult Participants With Chronic Lung Allograft Dysfunction

NCT06082037
View directory record Official record
Conditions
Lung Transplant Rejection
Interventions
Belumosudil, Azithromycin, Placebo
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
33
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Not applicable Interventional Results available

Macrolide Azithromycin to Prevent Rapid Worsening of Symptoms Associated With Chronic Obstructive Pulmonary Disease

NCT00325897
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
Macrolide Antibiotic (Azithromycin), Placebo
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years and older
Enrollment
1,142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
10
States / cities
Birmingham, Alabama • San Francisco, California • Torrance, California + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 18, 2019 · Synced Oct 23, 2026, 1:49 PM EDT
Completed Phase 2 Interventional Results available

Trial of Intravenous Azithromycin to Eradicate Ureaplasma Respiratory Tract Infection in Preterm Infants

NCT01778634
View directory record Official record
Conditions
Ureaplasma Infections
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
2 Hours to 72 Hours
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
7
States / cities
Birmingham, Alabama • Newark, Delaware • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 30, 2020 · Synced Oct 23, 2026, 1:49 PM EDT
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 Oct 23, 2026, 1:49 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Antibiotic Prophylaxis to Prevent Obesity-Related Induction Complications in Nulliparae at Term

NCT03801252
View directory record Official record
Conditions
Obesity, Induction of Labor Affected Fetus / Newborn
Interventions
Cefazolin, Placebo, Azithromycin
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
15 Years to 45 Years · Female only
Enrollment
186 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 19, 2024 · Synced Oct 23, 2026, 1:49 PM EDT
Terminated Not applicable Interventional

Treatment of Chronic Cryptosporidiosis in AIDS Patients

NCT00001128
View directory record Official record
Conditions
Cryptosporidiosis, HIV Infections
Interventions
Interleukin-12, Paromomycin sulfate, Azithromycin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2005
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 14, 2016 · Synced Oct 23, 2026, 1:49 PM EDT