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Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Placebo Mouthwash Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Efficacy of Oral Rinses for Inactivation of COVID-19 (MOR2)

NCT05178173
View directory record Official record
Conditions
COVID-19, Coronavirus Infection, SARS CoV 2 Infection
Interventions
Placebo Comparator: Sterile Water, 27% Ethanol plus essential oils, 0.075% Cetylpyridinium Chloride
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional

Dose-Response Study of Iocide Oral Rinse

NCT01103102
View directory record Official record
Conditions
Gingivitis
Interventions
Iocide Oral Rinse, Placebo
Drug
Lead sponsor
Biomedical Development Corporation
Industry
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 28, 2013 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Study of the Effects of Brilacidin Oral Rinse on Radiation-induced Oral Mucositis in Patients With Head and Neck Cancer

NCT02324335
View directory record Official record
Conditions
Head and Neck Neoplasms, Mucositis
Interventions
Brilacidin, Placebo
Drug · Other
Lead sponsor
Innovation Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
16
States / cities
Gilbert, Arizona • Lakeland, Florida • Columbus, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Dexamethasone to Prevent Oral Chronic Graft-versus-Host Disease

NCT00391170
View directory record Official record
Conditions
Graft vs Host Disease
Interventions
Topical Dexamethasone, Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
12 Years to 110 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2021
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Evaluation of a Test Mouthwash and Dentifrice Regimen in an In-situ Model of Dental Erosion

NCT01128972
View directory record Official record
Conditions
Tooth Erosion
Interventions
Sodium fluoride, Sodium monoflurophosphate, Sterile water
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 31, 2014 · Synced Sep 27, 2026, 8:05 AM EDT
Not listed Not applicable Interventional

Does Use of Topical Lidocaine in EGD Reduce Amount of IV Midazolam and Fentanyl Required and Shorten Recovery Time

NCT02620501
View directory record Official record
Conditions
Dysphagia, GERD, Abdominal Pain
Interventions
Lidocaine, Placebo
Drug
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years to 89 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Fort Sam Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional

Safety and Efficacy of IZN-6N4 Oral Rinse for the Prevention of Oral Mucositis in Patients With Head and Neck Cancer

NCT01400620
View directory record Official record
Conditions
Oral Mucositis
Interventions
IZN-6N4
Drug
Lead sponsor
Izun Pharma Ltd
Industry
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
4
States / cities
Gainesville, Florida • Miami, Florida • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 12, 2018 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional

Randomized, Double Blind, Placebo-Controlled, Phase IIB Trial of Ketorolac Mouth Rinse Evaluating the Effect of Cyclooxygenase Inhibition on Oropharyngeal Leukoplakia: Collaborative Study of the NCI, NIDCD and the NIDCR

NCT00001698
View directory record Official record
Conditions
Leukoplakia, Periodontal Disease
Interventions
Ketorolac Rinse
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 27, 2026, 8:05 AM EDT
Terminated Phase 3 Interventional Results available

Dexamethasone in Reducing Everolimus-Induced Oral Stomatitis in Patients With Cancer

NCT03839940
View directory record Official record
Conditions
Malignant Neoplasm
Interventions
Dexamethasone, Placebo, Questionnaire, Quality-of-Life Assessment, Everolimus
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
319
States / cities
Birmingham, Alabama • Kingman, Arizona • Fort Smith, Arkansas + 198 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Sep 27, 2026, 8:05 AM EDT
Terminated Phase 2 Interventional Results available

Efficacy, Safety and Tolerability of AG013 in Oral Mucositis Compared to Placebo When Administered Three Times Per Day

NCT03234465
View directory record Official record
Conditions
Oral Mucositis
Interventions
AG013, Placebo
Biological · Other
Lead sponsor
Oragenics, Inc.
Industry
Eligibility
21 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
27
States / cities
Farmington, Connecticut • Newark, Delaware • Orlando, Florida + 24 more
Source: ClinicalTrials.gov public record
Updated Nov 22, 2020 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Study of an Experimental Toothbrush for Treatment and Prevention of Gingivitis

NCT01224158
View directory record Official record
Conditions
Dental Devices, Home Care
Interventions
Experimental Power Toothbrush, Flat trimmed Manual Toothbrush
Device
Lead sponsor
Johnson & Johnson Consumer and Personal Products Worldwide
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 3, 2019 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 3 Interventional Results available

Supersaturated Calcium Phosphate Rinse in Preventing Oral Mucositis in Young Patients Undergoing Autologous or Donor Stem Cell Transplant

NCT01305200
View directory record Official record
Conditions
Childhood Acute Lymphoblastic Leukemia in Remission, Childhood Acute Myeloid Leukemia in Remission, Childhood Chronic Myelogenous Leukemia, Childhood Myelodysplastic Syndromes, Chronic Eosinophilic Leukemia, Chronic Myelomonocytic Leukemia, Chronic Neutrophilic Leukemia, de Novo Myelodysplastic Syndromes, Disseminated Neuroblastoma, Juvenile Myelomonocytic Leukemia, Mucositis, Myelodysplastic/Myeloproliferative Neoplasm, Unclassifiable, Previously Treated Childhood Rhabdomyosarcoma, Previously Treated Myelodysplastic Syndromes, Recurrent Childhood Acute Lymphoblastic Leukemia, Recurrent Childhood Acute Myeloid Leukemia, Recurrent Childhood Large Cell Lymphoma, Recurrent Childhood Lymphoblastic Lymphoma, Recurrent Childhood Rhabdomyosarcoma, Recurrent Childhood Small Noncleaved Cell Lymphoma, Recurrent Malignant Testicular Germ Cell Tumor, Recurrent Wilms Tumor and Other Childhood Kidney Tumors, Recurrent/Refractory Childhood Hodgkin Lymphoma, Relapsing Chronic Myelogenous Leukemia, Secondary Acute Myeloid Leukemia, Secondary Myelodysplastic Syndromes, Unspecified Childhood Solid Tumor, Protocol Specific
Interventions
supersaturated calcium phosphate rinse, placebo, questionnaire administration, quality-of-life assessment
Drug · Other · Procedure
Lead sponsor
Children's Oncology Group
Network
Eligibility
4 Years to 21 Years
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
31
States / cities
Arcadia, California • Duarte, California • Oakland, California + 26 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2019 · Synced Sep 27, 2026, 8:05 AM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Carbonic Anhydrase Inhibitors and Carbonation: A Novel Approach to Reduce Soda Consumption

NCT06110078
View directory record Official record
Conditions
Obesity
Interventions
Acetazolamide
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 100 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 6, 2024 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Povidone-Iodine Oral Rinse Study

NCT05239598
View directory record Official record
Conditions
COVID-19
Interventions
Mouth rinse
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Dose-dependent Anti-inflammatory Effects of Vitamin D in a Human Gingivitis Model

NCT00779909
View directory record Official record
Conditions
Gingivitis
Interventions
vitamin D3, Placebo
Drug · Other
Lead sponsor
Boston University
Other
Eligibility
18 Years to 64 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 1, 2017 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Analgesic Effects of Topical Ketamine Mouthwash in Patients Receiving Chemoradiation or Radiotherapy for Head & Neck Cancer

NCT01653327
View directory record Official record
Conditions
Mucositis, Head and Neck Cancer
Interventions
Ketamine, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Sep 27, 2018 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety and Preliminary Efficacy of Lipoxin Analog BLXA4-ME Oral Rinse for the Treatment of Gingivitis

NCT02342691
View directory record Official record
Conditions
Gingival Inflammation
Interventions
BLXA4, Placebo oral rinse
Drug
Lead sponsor
The Forsyth Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
127 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 27, 2026, 8:05 AM EDT
Completed No phase listed Interventional Accepts healthy volunteers Results available

A Clinical Study to Evaluate Effects of an Oral Rinse on Plaque and Gingivitis

NCT03421145
View directory record Official record
Conditions
Plaque
Interventions
3M™ Oral Rinse, Vehicle Control Oral Rinse, PerioShield™ Oral Health Rinse, Water
Device · Other
Lead sponsor
Solventum US LLC
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Sep 30, 2024 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

Decolonization of the Oropharynx, an Important and Neglected Reservoir of S. Aureus Colonization

NCT02589067
View directory record Official record
Conditions
S. Aureus Oropharyngeal Colonization
Interventions
Chlorhexidine gluconate, Saline Placebo
Drug
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
5 Years to 18 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Not applicable Interventional

Cardiovascular Function in Cancer Survivors

NCT03776149
View directory record Official record
Conditions
Cancer Survivor With History of Anthracycline Chemotherapy
Interventions
Beetroot juice, Black currant juice
Dietary Supplement
Lead sponsor
Kansas State University
Other
Eligibility
21 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2022 · Synced Sep 27, 2026, 8:05 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Mouth Rinses for Inactivation of COVID-19

NCT04584684
View directory record Official record
Conditions
Covid19, Coronavirus Infection, SARS-CoV-2 Infection
Interventions
0.9% w/v NaCL Saline, 1.5% w/v Hydrogen Peroxide, 0.12% Chlorohexidine Gluconate, 27% Ethanol plus essential oils, 0.5% w/v Povidone-iodide, 0.075% Cetylpyridinium Chloride
Other · Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 24, 2024 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Phase 2 Interventional Results available

The Effect of Chlorhexidine on the Oral and Lung Microbiota in Chronic Obstructive Pulmonary Disease

NCT02252588
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Chlorhexidine, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
40 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 28, 2020 · Synced Sep 27, 2026, 8:05 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers

Caries Transmission Prevention in Alaska Native Infants

NCT00067340
View directory record Official record
Conditions
Dental Caries
Interventions
Chlorhexidine mouth rinse, Xylitol chewing gum
Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced Sep 27, 2026, 8:05 AM EDT
Completed Not applicable Interventional Results available

Trial of Acupuncture for Radiation-Induced Xerostomia in Head and Neck Cancer

NCT02589938
View directory record Official record
Conditions
Radiation-Induced Xerostomia, Head and Neck Cancer, Radiation Toxicity, Oral Complications of Chemotherapy and Head/Neck Radiation
Interventions
Standard Oral Hygiene, Standard Oral Hygiene + True Acupuncture, Standard Oral Hygiene + Sham Acupuncture
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
258 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2022
U.S. locations
36
States / cities
Burbank, California • San Francisco, California • San Jose, California + 26 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 27, 2026, 8:05 AM EDT