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ClinicalTrials.gov public records Last synced Oct 19, 2026, 3:40 AM EDT

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Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Amoxicillin Placebo Clear all
Completed Early Phase 1 Interventional

Antibiotics Prior to Mini-screw Implant Insertion

NCT03582605
View directory record Official record
Conditions
Inflammation at Mini-screw Insertion Site, Mobility, Mini-screw
Interventions
Amoxicillin, Placebo oral capsule
Drug
Lead sponsor
St. Louis University
Other
Eligibility
12 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Oct 19, 2026, 3:40 AM EDT
Recruiting Phase 2 Interventional

Optimizing the Diagnostic Approach to Cephalosporin Allergy Testing

NCT06406114
View directory record Official record
Conditions
Drug Allergy, Cephalosporin Allergy, Drug Hypersensitivity, Antibiotic Allergy, Beta Lactam Adverse Reaction, Drug-Induced Anaphylaxis, Cephalosporin Reaction
Interventions
Beta-lactam antibiotic (cefazolin, cefuroxime, cefotaxime, ceftazidime, ceftriaxone, cefepime, pre-pen, penicillin G, ampicillin, and histamine) double-blind skin testing, Culprit cephalosporin (cefazolin, ceftazidime, ceftriaxone, cefepime, cephalexin, cefaclor, cefadroxil, cefuroxime, cefpodoxime, cefdinir, or cefixime) double-blind placebo-controlled drug challenge, Similar cephalosporin (cefepime, ceftriaxone, cefaclor, cephalexin, cefixime, or cefdinir) antibiotic double-blind placebo-controlled drug challenge, Dissimilar cephalosporin (ceftriaxone or cefazolin) antibiotic double-blind placebo-controlled drug challenge, Amoxicillin double-blind placebo-controlled drug challenge
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
6
States / cities
Scottsdale, Arizona • San Francisco, California • Boston, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 19, 2026, 3:40 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Pre-Emptive Analgesia in Dental Implant Surgery

NCT03243032
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Ibuprofen 600 mg, Local anesthetic Group 1, Placebo oral capsule, Local anesthetic Control
Drug
Lead sponsor
Satheesh Elangovan
Other
Eligibility
18 Years to 64 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Oct 12, 2018 · Synced Oct 19, 2026, 3:40 AM EDT
Not listed Phase 4 Interventional

Antibiotics for Severe Perineal Laceration to Prevent Infection Following Repair

NCT04573504
View directory record Official record
Conditions
Vaginal Laceration During Delivery
Interventions
Augmentin/Flagyl or Augmentin/Clindamycin, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 2, 2024 · Synced Oct 19, 2026, 3:40 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 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional Results available

Treatment of Acute Sinusitis

NCT00377403
View directory record Official record
Conditions
Acute Respiratory Infections, Acute Rhinosinusitis
Interventions
Acetaminophen, Amoxicillin, Dextromethorphan hydrobromide with guaifenesin, Guaifenesin, Pseudoephedrine Sustained Action, Saline spray (0.65%)
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
172 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 28, 2012 · Synced Oct 19, 2026, 3:40 AM EDT
Terminated Phase 2 Interventional Results available

Efficacy of Short-Course Antimicrobial Treatment for Children With Acute Otitis Media and Impact on Resistance

NCT01511107
View directory record Official record
Conditions
Acute Otitis Media
Interventions
Amoxicillin-Clavulanate, 10 days, Amoxicillin-Clavulanate, 5 days
Drug
Lead sponsor
Alejandro Hoberman
Other
Eligibility
6 Months to 23 Months
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Bardstown, Kentucky • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 3 Interventional Results available

Efficacy of Antibiotics in Children With Acute Sinusitis: Which Subgroups Benefit?

NCT02554383
View directory record Official record
Conditions
Sinusitis, Respiratory Tract Infections
Interventions
Amoxicillin-clavulanate, Placebo
Drug
Lead sponsor
Nader Shaikh
Other
Eligibility
2 Years to 11 Years
Enrollment
515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
6
States / cities
Bardstown, Kentucky • Gresham, Oregon • Philadelphia, Pennsylvania + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Oct 19, 2026, 3:40 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 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional Results available

Trial to Evaluate Beta-Lactam Antimicrobial Therapy of Community Acquired Pneumonia in Children

NCT02891915
View directory record Official record
Conditions
Pneumonia
Interventions
Amoxicillin, Amoxicillin-clavulanate, Cefdinir, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 71 Months
Enrollment
385 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
9
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Louisville, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Shaping the Indications for Periodontal Adjunctive Antibiotics in Dental Practice

NCT06131021
View directory record Official record
Conditions
Periodontitis, Periodontal Diseases, Periodontal Pocket
Interventions
Amoxicillin, Metronidazole, Placebo
Drug · Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
35 Years and older
Enrollment
236 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Not applicable Interventional Results available

Short (5 Days) Versus Long (14 Days) Duration of Antimicrobial Therapy for Acute Bacterial Sinusitis in Children

NCT01166945
View directory record Official record
Conditions
Sinusitis
Interventions
Amoxicillin-Potassium Clavulanate Combination, Placebo
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
1 Year to 10 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
2
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 10, 2019 · Synced Oct 19, 2026, 3:40 AM EDT
Not yet recruiting Phase 4 Interventional

Comparative Effectiveness of Available Treatments for Sinus and Ear Infections in Children (Acute Sinusitis)

NCT07732699
View directory record Official record
Conditions
ACUTE SINUSITIS, Sinusitis
Interventions
Amoxicillin, Amoxi Clavulanate, Amoxicillin Placebo, Amoxicillin-Clavulanate Placebo
Drug
Lead sponsor
Nader Shaikh
Other
Eligibility
2 Years to 12 Years
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
5
States / cities
Denver, Colorado • Durham, North Carolina • Cincinnati, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Not applicable Interventional

The Effect of Amoxicillin Versus Placebo on Gastrointestinal Motility in Children

NCT01530009
View directory record Official record
Conditions
Functional Gastrointestinal Disorders
Interventions
Amoxicillin, Placebo
Drug · Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
3 Years to 21 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 22, 2022 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Amoxicillin Drug Interaction Study With MMX® Mesalazine/Mesalamine

NCT01442688
View directory record Official record
Conditions
Healthy
Interventions
Amoxicillin + MMX placebo, Amoxicillin + MMX mesalazine/mesalamine
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 3 Interventional Results available

Moxifloxacin in Pediatric Subjects With Complicated Intra-abdominal Infection

NCT01069900
View directory record Official record
Conditions
Intraabdominal Infections
Interventions
Moxifloxacin (Avelox, BAY12-8039), Ertapenem, Amoxicillin/Clavulanate, Moxifloxacin placebo, Ertapenem placebo, Amoxicillin/Clavulanate placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
3 Months to 17 Years
Enrollment
458 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
2
States / cities
San Diego, California • Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 20, 2018 · Synced Oct 19, 2026, 3:40 AM EDT
Not yet recruiting Phase 4 Interventional

Comparative Effectiveness of Available Treatments for Sinus and Ear Infections in Children (Acute Otitis Media)

NCT07730814
View directory record Official record
Conditions
Acute Otitis Media (AOM)
Interventions
Amoxicillin, Amoxicillin-Clavulanate, Amoxicillin Placebo, Amoxicillin-Clavulanate Placebo
Drug
Lead sponsor
Nader Shaikh
Other
Eligibility
6 Months to 36 Months
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
5
States / cities
Denver, Colorado • Durham, North Carolina • Cincinnati, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional

Amoxicillin for the Treatment of Pediatric Autoimmune Disorders Associated With Streptococcal Infections

NCT00001658
View directory record Official record
Conditions
Autoimmune Disease, Mental Disorder, Obsessive Compulsive Disorder, Streptococcal Infection, Tic Disorder
Interventions
Amoxicillin
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 19, 2026, 3:40 AM EDT
Recruiting Phase 4 Interventional

Nasal Steroids, Irrigation, Oral Antibiotics, and Subgroup Targeting for Effective Management of Acute Sinusitis

NCT06076304
View directory record Official record
Conditions
Sinus Infection, Acute Sinusitis
Interventions
amoxicillin/clavulanate potassium, Placebo, Budesonide nasal spray
Drug
Lead sponsor
Daniel Merenstein
Other
Eligibility
18 Years to 75 Years
Enrollment
3,720 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
7
States / cities
Los Angeles, California • Washington D.C., District of Columbia • Hyattsville, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Oct 19, 2026, 3:40 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 19, 2026, 3:40 AM EDT
Terminated Phase 4 Interventional Results available

Treatment of Acute Sinusitis With High-Dose vs. Standard-Dose Amoxicillin/Clavulanate

NCT03431337
View directory record Official record
Conditions
Sinusitis, Acute
Interventions
Amoxicillin 875 mg, Placebo (lactase)
Drug · Dietary Supplement
Lead sponsor
Paul Sorum, MD
Other
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cohoes, New York
Source: ClinicalTrials.gov public record
Updated Aug 12, 2021 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Clinical Trial of the Treatment of Acute Sinusitis With Standard-dose Versus High-dose Amoxicillin/Clavulanate

NCT02340000
View directory record Official record
Conditions
Sinusitis
Interventions
standard dose amoxicillin/clavulanate, high dose amoxicillin/clavulanate
Drug
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years and older
Enrollment
315 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Latham, New York
Source: ClinicalTrials.gov public record
Updated Aug 24, 2017 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional Results available

Prophylactic Antibiotics After Functional Endoscopic Sinus Surgery: a Randomized, Double-blind Placebo Controlled Trial

NCT01919411
View directory record Official record
Conditions
Sinusitis
Interventions
Amoxicillin-Potassium Clavulanate, Placebo
Drug
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 25, 2020 · Synced Oct 19, 2026, 3:40 AM EDT
Completed Phase 4 Interventional Results available

Acute Otitis Media (AOM) Therapy Trial in Young Children

NCT00377260
View directory record Official record
Conditions
Acute Otitis Media
Interventions
amoxicillin-clavulanate, Placebo
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
6 Months to 23 Months
Enrollment
291 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 5, 2016 · Synced Oct 19, 2026, 3:40 AM EDT