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ClinicalTrials.gov public records Last synced Oct 7, 2026, 9:24 PM EDT

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Showing 25–48 of 62 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: placebo (for azithromycin) Clear all
Completed Phase 1Phase 2 Interventional Results available

Trial of Antimycobacterial Therapy in Sarcoidosis

NCT01074554
View directory record Official record
Conditions
Sarcoidosis
Interventions
Antibiotic Regimen, Placebo Regimen
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 12, 2016 · Synced Oct 7, 2026, 9:24 PM EDT
Withdrawn Phase 1Phase 2 Interventional

Macrolide Therapy to Improve Forced Expiratory Volume in 1 Second in Adults With Sickle Cell Disease

NCT02960503
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Azithromycin, Placebo
Drug · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Oct 7, 2026, 9:24 PM EDT
Not listed Phase 2 Interventional

Metoclopramide, Azithromycin, or Nondrug Pretreatment for UGIB to Reduce Second Endoscopy

NCT03840057
View directory record Official record
Conditions
Gastro Intestinal Bleeding, Upper Gastrointestinal Bleeding
Interventions
Azithromycin Injection, Metoclopramide Injectable Solution, Sodium chloride 0.9%
Drug
Lead sponsor
Waihong Chung
Other
Eligibility
18 Years and older
Enrollment
435 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 7, 2020 · Synced Oct 7, 2026, 9:24 PM EDT
Recruiting Phase 2 Interventional

Antibiotic Prophylaxis to Prevent Obesity-Related Induction Complications in Nulliparae at Term 2.0

NCT06488781
View directory record Official record
Conditions
Obesity in Pregnancy, Labor Complication
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
15 Years to 45 Years · Female only
Enrollment
787 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Incidence of Acute Laryngeal Injury Following Endotracheal Intubation

NCT03250975
View directory record Official record
Conditions
Intubation Complication
Interventions
Budesonide and Azithromycin, Placebo control of budesonide and azithromycin
Drug · Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 7, 2026, 9:24 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 7, 2026, 9:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Cholera Anti-Secretory Treatment Trial

NCT04150250
View directory record Official record
Conditions
Cholera
Interventions
iOWH032, Placebo, V. cholerae Challenge, Antibiotics
Drug · Other
Lead sponsor
PATH
Other
Eligibility
18 Years to 44 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Azithromycin Before Induction

NCT06543290
View directory record Official record
Conditions
Infections
Interventions
Azithromycin Pill, Placebo
Drug
Lead sponsor
Arrowhead Regional Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Colton, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 2 Interventional Results available

NGU: Doxycycline (Plus or Minus Tinidazole) Versus Azithromycin (Plus or Minus Tinidazole)

NCT00322465
View directory record Official record
Conditions
Urethritis
Interventions
Doxycycline, Placebo, Tinidazole, Azithromycin
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years to 45 Years · Male only
Enrollment
305 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
4
States / cities
Birmingham, Alabama • New Orleans, Louisiana • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 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 7, 2026, 9:24 PM EDT
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 7, 2026, 9:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Antibiotic Resistance and Microbiome in Children Aged 6-59 Months in Nouna, Burkina Faso

NCT03187834
View directory record Official record
Conditions
Child Development
Interventions
Azithromycin, Amoxicillin, Cotrimoxazole, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
6 Months to 59 Months
Enrollment
252 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Oct 7, 2026, 9:24 PM EDT
Terminated Phase 3 Interventional Results available

Empiric Therapy of Mucopurulent Cervicitis (MPC)

NCT01072136
View directory record Official record
Conditions
Vaginitis Bacterial, Cervicitis
Interventions
Placebo, Azithromycin, Cefixime
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older · Female only
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
4
States / cities
Birmingham, Alabama • Torrance, California • New Orleans, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 24, 2014 · Synced Oct 7, 2026, 9:24 PM EDT
Terminated Phase 2 Interventional Results available

Evaluating the Efficacy of Hydroxychloroquine and Azithromycin to Prevent Hospitalization or Death in Persons With COVID-19

NCT04358068
View directory record Official record
Conditions
COVID-19, SARS-CoV 2
Interventions
Hydroxychloroquine (HCQ), Azithromycin (Azithro), Placebo for Hydroxychloroquine, Placebo for Azithromycin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
11
States / cities
Birmingham, Alabama • San Diego, California • Torrance, California + 7 more
Source: ClinicalTrials.gov public record
Updated Nov 16, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Mortality Reduction After Oral Azithromycin: Morbidity Study

NCT02048007
View directory record Official record
Conditions
Childhood Mortality
Interventions
Azithromycin, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
1 Month and older
Enrollment
72,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
2
States / cities
San Francisco, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 17, 2021 · Synced Oct 7, 2026, 9:24 PM EDT
Withdrawn Phase 3 Interventional

Azithromycin Plus Hydroxychloroquine for COVID-19 Infection

NCT05026801
View directory record Official record
Conditions
Respiratory Tract Infection Viral
Interventions
Azithromycin plus hydroxychloroquine
Drug
Lead sponsor
Iterum Therapeutics, International Limited
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Waterbury, Connecticut
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Oct 7, 2026, 9:24 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 7, 2026, 9:24 PM EDT