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Showing 1–24 of 42 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo for Metronidazole Clear all
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

The Use of Low Dose Metronidazole to Decrease Postoperative Pain After Endometriosis Surgery

NCT04554693
View directory record Official record
Conditions
Endometriosis, Endometriosis-related Pain
Interventions
Metronidazole Oral, Placebo
Drug
Lead sponsor
University of Louisville
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 2 Interventional Results available

LACTIN-V Study for Recurrent Bacterial Vaginosis

NCT02766023
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
Lactobacillus crispatus CTV-05, Metronidazole, Placebo
Biological · Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
4
States / cities
San Diego, California • San Francisco, California • Chicago, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional

A Therapeutic Equivalence Study of Two Metronidazole Gel 1% Topical Treatments of Rosacea

NCT02393937
View directory record Official record
Conditions
Papulopustular Rosacea, Erythematotelangiectatic Rosacea
Interventions
Reference: Metronidazole Gel 1%, Test: Metronidazole Gel 1%, Placebo Gel
Drug
Lead sponsor
bioRASI, LLC
Industry
Eligibility
18 Years and older
Enrollment
963 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
27
States / cities
Los Angeles, California • San Diego, California • Boca Raton, Florida + 23 more
Source: ClinicalTrials.gov public record
Updated Sep 2, 2020 · Synced Sep 23, 2026, 7:46 AM EDT
Not listed Not applicable Interventional

Use of 48 Hour Course of Antibiotics to Prevent Surgical Site Infection in Obese Patients Undergoing Cesarean Delivery

NCT01194115
View directory record Official record
Conditions
Surgical Site Infection in Obese Women Undergoing C-section
Interventions
cephalexin & metronidazole, placebo
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
13 Years and older · Female only
Enrollment
475 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2010
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 10, 2011 · Synced Sep 23, 2026, 7:46 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Efficacy Study of Preconception Treatment of an Asymptomatic Bacterial Infection in an Infertility Population

NCT01322971
View directory record Official record
Conditions
Vaginosis, Bacterial, Infertility, Miscarriage
Interventions
Metronidazole, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2021 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional

Evaluation of Topical 10% Metronidazole Ointment for the Treatment of Active Perianal Crohn's Disease

NCT00509639
View directory record Official record
Conditions
Crohn's Disease
Interventions
10% Metronidazole Ointment
Drug
Lead sponsor
S.L.A. Pharma AG
Industry
Eligibility
18 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 12, 2012 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of SPL7013 Gel to Prevent the Recurrence of Bacterial Vaginosis (BV)

NCT02237950
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
Metronidazole oral tablets 500mg, 1% SPL7013 Gel, Placebo gel
Drug
Lead sponsor
Starpharma Pty Ltd
Industry
Eligibility
16 Years to 45 Years · Female only
Enrollment
586 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
37
States / cities
Birmingham, Alabama • Montgomery, Alabama • Little Rock, Arkansas + 32 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2019 · Synced Sep 23, 2026, 7:46 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Strategies to Augment Ketosis: Ketone Conferred Resiliency Against Sleep Restriction

NCT05519644
View directory record Official record
Conditions
Sleep Deprivation
Interventions
Sleep Deprivation, Heart Rate, Sleep Monitoring, Diet, Exercise Performance, Surveys, McGill Pain Questionnaire, Shortened Profile of Mood States, Pittsburg Sleep Index, Cognitive performance, Marksmanship Performance, Quick Board, Advanced Medical Technologies Inc, Jump Test, CGM/CKM, Blood Draw, Ketone Supplement
Other · Behavioral · Biological + 1 more
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 40 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 23, 2026, 7:46 AM EDT
Recruiting Phase 2 Interventional

APLAUD Trial (Antibiotics vs PLacebo for Acute Uncomplicated Diverticulitis)

NCT07492134
View directory record Official record
Conditions
Acute Uncomplicated Diverticulitis
Interventions
Amoxicillin-Clavulanate 875 Mg-125 Mg Oral Tablet, Placebo, Metronidazole, Cefuroxime
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 20, 2026 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 1 Interventional

A Therapeutic Equivalence Study of Two Metronidazole 1%Topical Gel Treatments for Patients With Rosacea

NCT01513863
View directory record Official record
Conditions
Rosacea
Interventions
Metronidazole Topical Gel 1%, Metronidazole Topical Gel 1% (Metrogel), Placebo
Drug
Lead sponsor
Sun Pharmaceutical Industries, Inc.
Industry
Eligibility
18 Years and older
Enrollment
602 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
22
States / cities
Phoenix, Arizona • Long Beach, California • Newport Beach, California + 19 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2013 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 2 Interventional Results available

MK-7625A Plus Metronidazole Versus Meropenem in Pediatric Participants With Complicated Intra-Abdominal Infection (cIAI) (MK-7625A-035)

NCT03217136
View directory record Official record
Conditions
Complicated Intra-Abdominal Infection
Interventions
Ceftolozane/Tazobactam, Metronidazole, Meropenem, Placebo for Metronidazole
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
7 Days to 17 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
Los Angeles, California • Orange, California • San Diego, California + 6 more
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional Results available

Rifaximin and Placebo in the Treatment of Bowel Dysfunction After Anterior Resection for Rectal Cancer

NCT01345175
View directory record Official record
Conditions
Rectal Cancer
Interventions
Rifaximin, Placebo
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
21 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2023
U.S. locations
3
States / cities
Basking Ridge, New Jersey • Commack, New York • New York, New York
Source: ClinicalTrials.gov public record
Updated May 13, 2024 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional Results available

Bezlotoxumab (MK-6072) Versus Placebo in Children With Clostridium Difficile Infection (CDI) (MK-6072-001)

NCT03182907
View directory record Official record
Conditions
Clostridium Difficile Infection
Interventions
Bezlotoxumab, Placebo, Antibacterial drug treatment (ABD)
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
1 Year to 17 Years
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
21
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Sep 23, 2026, 7:46 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 13, 2026 · Synced Sep 23, 2026, 7:46 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Antibiotics and the Prolongation of Pregnancy in Preterm Labor With an Advanced Cervical Exam

NCT00589329
View directory record Official record
Conditions
Length of Pregnancy Prolongation in Hours
Interventions
erythromycin and metronidazole (antibiotics), placebo
Drug
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 3, 2019 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 2 Interventional

Treating Periodontal Infection: Effects on Glycemic

NCT00016835
View directory record Official record
Conditions
Periodontal Disease, Diabetes Mellitus, Type 2
Interventions
Supra-gingival scaling and placebo, Subgingival scaling and metronidazole, Subgingival scaling and doxycycline
Procedure
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 1 Interventional

Prophylactic Antibiotics After Cesarean

NCT03187106
View directory record Official record
Conditions
Surgical Site Infection
Interventions
Cephalexin, Placebo, Metronidazole
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
321 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
2
States / cities
Austin, Texas • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 15, 2023 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 2 Interventional Results available

Nitrite Supplementation in Long COVID Patients

NCT05618574
View directory record Official record
Conditions
Long COVID, Cardiorespiratory Fitness
Interventions
140 ml per day of Beet-It nitrate beverage (James White Drinks Ltd., Ipswich, UK), 210 ml of nitrate-depleted placebo
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Exogenous Ketones on Indices of Keto-Adaptation in Obese Subjects on Weight Reducing Diets.

NCT06449287
View directory record Official record
Conditions
Ketogenic Diet, Weight Loss
Interventions
Diet, Blood Draw, Ketone/Glucose Monitoring, Body Composition, Urine Analysis, Neuropsychological Measures - ANAM
Other · Biological · Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of SPL7013 Gel to Prevent the Recurrence of Bacterial Vaginosis (BV)

NCT02236156
View directory record Official record
Conditions
Bacterial Vaginosis
Interventions
Metronidazole oral tablets 500mg, 1% SPL7013 Gel, Placebo gel
Drug
Lead sponsor
Starpharma Pty Ltd
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
637 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
4
States / cities
Phoenix, Arizona • San Diego, California • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2018 · Synced Sep 23, 2026, 7:46 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Magnesium L-Threonate on Sleep, Recovery, and Athletic Performance in Collegiate Athletes

NCT07015047
View directory record Official record
Conditions
Recovery of Function (G11.427.698.620), Athletic Performance, Heart Rate Variability (HRV)
Interventions
Magnesium L-Threonate, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Phase 2 Interventional Results available

The Importance of Anti-anaerobic Therapy for Acute Pelvic Inflammatory Disease (PID)

NCT01160640
View directory record Official record
Conditions
Pelvic Inflammatory Disease
Interventions
Ceftriaxone, Doxycycline, Metronidazole, Placebo Oral Capsule
Drug
Lead sponsor
Harold Wiesenfeld
Other
Eligibility
15 Years to 40 Years · Female only
Enrollment
233 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
3
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 9, 2018 · Synced Sep 23, 2026, 7:46 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Randomized Controlled Trial of Three Antibiotic Regimens for First Trimester Abortions

NCT02756403
View directory record Official record
Conditions
First Trimester Abortion
Interventions
Azithromycin, Doxycycline, Metronidazole, Placebo
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
181 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 10, 2022 · Synced Sep 23, 2026, 7:46 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 1, 2024 · Synced Sep 23, 2026, 7:46 AM EDT