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ClinicalTrials.gov public records Last synced Oct 1, 2026, 9:51 AM EDT

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Showing 25–48 of 173 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Penicillin G potassium Clear all
Completed Phase 3 Interventional

A Single, High-Dose Azithromycin Extended Release (60 mg/kg) Compared With 10 Days of High-Dose Amoxicillin Clavulanate in Children With Ear Infections at High Risk of Persistent/Recurrent Ear Infections

NCT00643292
View directory record Official record
Conditions
Acute Otitis Media
Interventions
amoxicillin/clavulanate postassium (Augmentin ES-600), azithromycin SR
Drug
Lead sponsor
Pfizer
Industry
Eligibility
3 Months to 48 Months
Enrollment
902 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
23
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Bellflower, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 17, 2011 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 1 Interventional

Ampicillin for DYT-1 Dystonia Motor Symptoms

NCT01433757
View directory record Official record
Conditions
DYT-1, Dystonia
Interventions
Ampicillin, Sugar pill
Drug
Lead sponsor
University of Florida
Other
Eligibility
7 Years to 80 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jul 5, 2017 · Synced Oct 1, 2026, 9:51 AM EDT
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 Oct 1, 2026, 9:51 AM EDT
Terminated Early Phase 1 Interventional

Patients Response to Early Switch To Oral:Osteomyelitis Study

NCT02099240
View directory record Official record
Conditions
Osteomyelitis
Interventions
oral antibiotics, intravenous antibiotics
Drug · Procedure
Lead sponsor
Julio Ramirez
Other
Eligibility
18 Years to 100 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 6, 2021 · Synced Oct 1, 2026, 9:51 AM EDT
Terminated Phase 1 Interventional

The Evaluation of Postoperative Antibiotics in Non-Infected Mandible Fractures

NCT04198129
View directory record Official record
Conditions
Jaw Fractures, Infection
Interventions
Antibiotic treatment (Unasyn or Cleocin), Antibiotic treatment (Augmentin or Cleocin), Control Group
Drug · Other
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 1, 2026, 9:51 AM EDT
Terminated Phase 3 Interventional Results available

A Safety and Tolerability Study of Doripenem Compared With Meropenem in Children Hospitalized With Complicated Intra-abdominal Infections

NCT01110382
View directory record Official record
Conditions
Abscess, Intra-Abdominal, Abdominal Abscess, Abdomen, Acute, Abdominal Pain, Appendicitis, Rupture, Infection, Intestinal Perforation, Peritonitis, Ileus
Interventions
Doripenem, Meropenem placebo, Meropenem, Doripenem placebo, Amoxicillin/clavulanate potassium
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
3 Months to 18 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
4
States / cities
San Diego, California • Washington D.C., District of Columbia • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2014 · Synced Oct 1, 2026, 9:51 AM EDT
Terminated Phase 4 Interventional Results available

Antibiotic Duration in Post-appendectomy Abscess

NCT03795194
View directory record Official record
Conditions
Complicated Appendicitis, Perforated Appendicitis
Interventions
ampicillin/clavulanate
Drug
Lead sponsor
Phoenix Children's Hospital
Other
Eligibility
2 Years to 17 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 8, 2024 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Not applicable Interventional Results available

PK/PD of High Dose Pip/Tazo in Obese Patients

NCT01923363
View directory record Official record
Conditions
Obesity
Interventions
Piperacillin/Tazobactam Standard Dose to High Dose
Drug
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 89 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 26, 2018 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Comparison of Medical and Surgical Treatment of Uncomplicated Acute Appendicitis in Children

NCT02991937
View directory record Official record
Conditions
Appendicitis
Interventions
Piperacillin/Tazobactam, Surgical Treatment
Drug · Procedure
Lead sponsor
NYU Langone Health
Other
Eligibility
6 Years to 17 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 21, 2022 · Synced Oct 1, 2026, 9:51 AM EDT
Not listed Phase 4 Interventional

Efficacy of Oral vs IV Antibiotics in the Treatment of Orofacial Osteomyelitis

NCT05867654
View directory record Official record
Conditions
Osteomyelitis of Jaw
Interventions
Amoxicillin-clavulanate 875mg/125mg q12hrs, oral clindamycin 300mg q6hrs, Levofloxacin 750mg QID
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 17, 2024 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 1 Interventional

Microbial, Immune, and Metabolic Perturbations by Antibiotics (MIME Study)

NCT02707042
View directory record Official record
Conditions
Normal Physiology, Healthy
Interventions
Amoxicillin, Azithromycin, Control
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
108 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 3 Interventional Results available

Efficacy/Safety of Meropenem-Vaborbactam Compared to Piperacillin-Tazobactam in Adults With cUTI and AP

NCT02166476
View directory record Official record
Conditions
Urinary Tract Infection Complicated, Acute Pyelonephritis
Interventions
Meropenem-Vaborbactam, Piperacillin-Tazobactam, Levofloxacin, Saline
Drug
Lead sponsor
Melinta Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
550 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
8
States / cities
Mobile, Alabama • San Diego, California • Denver, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2018 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 2 Interventional

Antibiotic Therapy and Antacids in Patients With Malt Lymphoma of the Stomach

NCT00002682
View directory record Official record
Conditions
Lymphoma
Interventions
Amoxicillin, Bismuth Subsalicylate, Clarithromycin, Metronidazole Hydrochloride, Omeprazole, Tetracycline Hydrochloride
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years to 80 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2001
U.S. locations
2
States / cities
Orlando, Florida • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 24, 2018 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 3 Interventional

A Multicenter, Randomized, Double-Blind, Double-Dummy Study Of Azithromycin SR Versus Amoxicillin For The Treatment Of Strep Throat In Children

NCT00643149
View directory record Official record
Conditions
Tonsillitis
Interventions
amoxicillin, azithromycin SR
Drug
Lead sponsor
Pfizer
Industry
Eligibility
2 Years to 12 Years
Enrollment
693 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2004
U.S. locations
33
States / cities
Hoover, Alabama • Pelham, Alabama • Fresno, California + 20 more
Source: ClinicalTrials.gov public record
Updated May 17, 2011 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 2 Interventional Results available

A Study Of Intravenous Sulopenem And Oral PF-03709270 In Community Acquired Pneumonia That Requires Hospitalization

NCT00797108
View directory record Official record
Conditions
Pneumonia, Bacterial
Interventions
Sulopenem and PF-03709270, Ceftriaxone and amoxicillin/clavulanate
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
12
States / cities
Chula Vista, California • Oceanside, California • Moline, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2016 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effect of Antibiotics on Enteric Neurons and Glia

NCT05834036
View directory record Official record
Conditions
Antibiotic Enterocolitis
Interventions
Amoxicillin Oral Capsule
Drug
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years to 75 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Oct 1, 2026, 9:51 AM EDT
Withdrawn No phase listed Observational

The Role of Antibiotic Prophylaxis in Cleft Palate and Velopharyngeal Insufficiency Repair

NCT02688634
View directory record Official record
Conditions
Cleft Palate
Interventions
Amoxicillin
Drug
Lead sponsor
University of Florida
Other
Eligibility
1 Month to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
2
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Dec 21, 2017 · Synced Oct 1, 2026, 9:51 AM EDT
Terminated Phase 3 Interventional Results available

Treating H. Pylori in Parkinson's Patients With Motor Fluctuations

NCT00664209
View directory record Official record
Conditions
Parkinson's Disease, Helicobacter Infections, Motor Fluctuations
Interventions
clartihromycin, amoxicillin, and omeprazole, placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Male only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 2, 2017 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 3 Interventional

Study Comparing the Safety and Efficacy of Piperacillin/Tazobactam to Cefepime in Patients With Hematologic Malignancy or Lymphoma

NCT00044759
View directory record Official record
Conditions
Hematologic Neoplasms
Interventions
Piperacillin/Tazobactam (Tazocin)
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
31
States / cities
Little Rock, Arkansas • Los Angeles, California • Denver, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 10, 2007 · Synced Oct 1, 2026, 9:51 AM EDT
Active, not recruiting Phase 2 Interventional

Choosing the Best Antibiotic to Protect Friendly Gut Bacteria During the Course of Stem Cell Transplant

NCT03078010
View directory record Official record
Conditions
Intestinal Microbiome, Febrile Neutropenia
Interventions
Piperacillin-tazobactam, cefepime
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
2
States / cities
Hackensack, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Oct 1, 2026, 9:51 AM EDT
Recruiting No phase listed Observational

Pharmacokinetics and Safety of Commonly Used Drugs in Lactating Women and Breastfed Infants

NCT03511118
View directory record Official record
Conditions
Lactating Women on Select DOI, Breastfed Infants of Mothers on Select DOI
Interventions
Tranexamic acid (TXA), labetalol, metformin, nifedipine, clindamycin, oxycodone, azithromycin, escitalopram, sertraline, ondansetron, Ciprofloxacin, Doxycycline, Levofloxacin, Methylphenidate, Sumatriptan, Citalopram, Cyclobenzaprine, Furosemide, Gabapentin, Hydrochlorothiazide, Hydroxyurea, Rosuvastatin, Topiramate, Trazodone, Valganciclovir, Venlafaxine, Verapamil, Remdesivir, Anakinra, Tocilizumab, Fluvoxamine, Amoxicillin, Bupropion, Duloxetine, Hydrocodone, Levetiracetam, Paroxetine, Buprenorphine
Drug
Lead sponsor
Duke University
Other
Eligibility
Not listed
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2028
U.S. locations
20
States / cities
La Jolla, California • Loma Linda, California • Chicago, Illinois + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 1, 2026, 9:51 AM EDT
Terminated Phase 4 Interventional

Noninferiority Comparison of Prophylactic Open Fracture Antimicrobial Regimens

NCT03560232
View directory record Official record
Conditions
Open Fracture, Post-Op Wound Infection
Interventions
Ceftriaxone, Ampicillin/sulbactam, Piperacillin/tazobactam, Cefazolin + Gentamicin, Clindamycin + Gentamicin
Drug
Lead sponsor
Mercy Health Ohio
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
2
States / cities
Warren, Ohio • Youngstown, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 11, 2020 · Synced Oct 1, 2026, 9:51 AM EDT
Recruiting Phase 4 Interventional

NextGen - Clinical Implication of Next Generation Sequencing

NCT05206500
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
Antibiotic, Next Gen
Drug · Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Oct 1, 2026, 9:51 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Treatment of Gardnerella Vaginalis Vaginal Colonization With Amoxicillin

NCT03211156
View directory record Official record
Conditions
Vaginitis Gardnerella
Interventions
Amoxicillin, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Birmingham, Alabama • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2020 · Synced Oct 1, 2026, 9:51 AM EDT