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ClinicalTrials.gov public records Last synced Sep 25, 2026, 10:56 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Microcrystalline cellulose Clear all
Recruiting Phase 4 Interventional Accepts healthy volunteers

CAT BITE Antibiotic Prophylaxis for the Hand/Forearm (CATBITE)

NCT05846399
View directory record Official record
Conditions
Cat Bite, Hand Injuries, Arm Injury, Infection, Bacterial, Anti-bacterial Agents
Interventions
Amoxicillin/clavulanate, Ciprofloxacin, Clindamycin, Placebo (microcrystalline cellulose), Wound management
Drug · Other · Procedure
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Sep 25, 2026, 10:56 PM EDT
Recruiting Phase 2 Interventional

Low-Dose Naltrexone for the Treatment of Painful Diabetic Neuropathy

NCT04678895
View directory record Official record
Conditions
Painful Diabetic Neuropathy
Interventions
Naltrexone, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Anxiety and Recurrent Abdominal Pain in Children

NCT00962039
View directory record Official record
Conditions
Abdominal Pain, Anxiety
Interventions
Citalopram, Placebo
Drug
Lead sponsor
John V. Campo, M.D.
Other
Eligibility
7 Years to 18 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 10, 2020 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Comparison of Psyllium and Microcrystalline Cellulose on Glycemic Measures in Subjects With Impaired Fasting Glucose

NCT01549600
View directory record Official record
Conditions
Impaired Fasting Glucose
Interventions
psyllium, Microcrystalline Cellulose
Dietary Supplement
Lead sponsor
Procter and Gamble
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 27, 2014 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and PK of MBX-400 (Cyclopropavir) in Normal Volunteers

NCT02454699
View directory record Official record
Conditions
Cytomegalovirus Infection
Interventions
MBX400, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 2 Interventional

Safety and Effectiveness Study of a Fiber Supplement for Weight Loss

NCT00613600
View directory record Official record
Conditions
Overweight, Obesity
Interventions
Glucomannan, Inert microcrystalline cellulose
Dietary Supplement
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 1, 2011 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Race and MitoQ Supplementation on Skin Blood Flow in the Cold

NCT06784531
View directory record Official record
Conditions
Cold Exposure
Interventions
Mitoquinone mesylate (MitoQ), Placebo, Cold Water Hand Immersion, Cold Air Exposure
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 40 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Healthy Volunteers

NCT00934453
View directory record Official record
Conditions
Healthy
Interventions
Lactobacillus rhamnosus GG ATCC 53103, Placebo
Biological
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 50 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 25, 2026, 10:56 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Senolytic Agent Improve the Benefit of Platelet-Rich Plasma and Losartan

NCT05025956
View directory record Official record
Conditions
Femoroacetabular Impingement
Interventions
Fisetin, Placebo
Drug
Lead sponsor
Steadman Philippon Research Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Vail, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 15, 2024 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 2 Interventional

Vitamin D3 Supplementation for Heart Failure Patients

NCT01636570
View directory record Official record
Conditions
Heart Failure, Vitamin D Deficiency, Cardiomyopathy, Congestive Heart Failure
Interventions
Placebo Comparator: Sugar Pill, Vitamin D3 (cholecalciferol)
Drug
Lead sponsor
Heidi Moretti, MS, RD
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
2
States / cities
Missoula, Montana
Source: ClinicalTrials.gov public record
Updated Apr 25, 2017 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Crossover Study of the Safety and PK Properties of Proellex®

NCT00749879
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Proellex
Drug
Lead sponsor
Repros Therapeutics Inc.
Industry
Eligibility
18 Years to 34 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 28, 2019 · Synced Sep 25, 2026, 10:56 PM EDT
Withdrawn Phase 1Phase 2 Interventional Accepts healthy volunteers

Prevention of Age-associated Cardiac and Vascular Dysfunction Using Avmacol ES

NCT05408559
View directory record Official record
Conditions
Diastolic Dysfunction, Systolic Dysfunction, Diastolic Heart Failure
Interventions
Sulforaphane
Drug
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
60 Years to 80 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional

Drug Discrimination in Methadone-Maintained Humans Study 3

NCT01068847
View directory record Official record
Conditions
Drug Dependence
Interventions
2-4 of the drugs listed below
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 65 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Mar 6, 2013 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Gut-Cued Eating on BMI and Efficacy of Open-Label Placebo to Augment Weight Loss

NCT03850990
View directory record Official record
Conditions
Eating Behavior, Obesity, Body Weight, Hunger
Interventions
Placebo pill and no placebo pill
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 60 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 3, 2021 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Protein and Alkali Supplementation on Skeletal Muscle in Older Adults

NCT04048616
View directory record Official record
Conditions
Age-Related Sarcopenia, Muscle Loss
Interventions
whey protein isolate, potassium bicarbonate (KHCO3), microcrystalline cellulose, maltodextrin powder
Dietary Supplement · Other
Lead sponsor
Tufts University
Other
Eligibility
65 Years and older
Enrollment
141 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 17, 2025 · Synced Sep 25, 2026, 10:56 PM EDT
Recruiting Phase 1 Interventional

Veverimer to Decrease Net Acid Excretion and Bone Resorption in Adults With Osteopenia

NCT07473713
View directory record Official record
Conditions
Osteopenia
Interventions
veverimer daily, veverimer every other day, Placebo
Drug · Other
Lead sponsor
Tufts Medical Center
Other
Eligibility
50 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Effects of Psilocybin on Electrophysiology and the Dynamic Content of Thought

NCT05301608
View directory record Official record
Conditions
Healthy
Interventions
Psilocybin, Placebo
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Safety and Tolerability of 2 Dietary Supplement Beverages Designed to Maintain Healthy Blood Pressure.

NCT06442293
View directory record Official record
Conditions
Safety Issues, Tolerance
Interventions
Treatment 1, Treatment 2, Placebo
Dietary Supplement
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 50 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Acute Effects of a Dietary Supplement on Cognitive Performance in Highly Trained Athletes.

NCT05926050
View directory record Official record
Conditions
Reaction Time
Interventions
Treatment (CopaPrime+ (USANA Health Sciences), Placebo
Dietary Supplement · Other
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 30 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Park City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Sep 25, 2026, 10:56 PM EDT
Recruiting Phase 1Phase 2 Interventional

Nicotinic Acid for the Treatment of Alzheimer's Disease

NCT06582706
View directory record Official record
Conditions
Alzheimer Disease
Interventions
Placebo Comparator, Extended Release Niacin
Drug
Lead sponsor
Indiana University
Other
Eligibility
60 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Not listed Not applicable Interventional

Curcumin in Management of Chronic Obstructive Pulmonary Disease

NCT04687449
View directory record Official record
Conditions
COPD
Interventions
Curcumin therapy, Placebo, Standard care
Dietary Supplement · Other
Lead sponsor
Danbury Hospital
Other
Eligibility
40 Years to 89 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Danbury, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 8, 2021 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Study to Investigate the Recovery, Excretion, and Pharmacokinetics of 14C-GSK1265744 Administered as a Single Oral Dose and a Study to Describe the Pharmacokinetics of a Supratherapeutic Dose of GSK1265744 in Healthy Adult Subjects

NCT01848340
View directory record Official record
Conditions
HIV-associated Lipodystrophy Syndrome
Interventions
GSK1265744B (sodium salt) containing 14C-GSK1265744B, 150 mg GSK1265744B, Placebo
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 3, 2013 · Synced Sep 25, 2026, 10:56 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Ancillary Nocturnal Urinary Symptoms Analyses for TRIUMPH

NCT07829029
View directory record Official record
Conditions
Nocturia
Interventions
TolterodineTartrate ER, Mirabegron, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
60 Years and older · Female only
Enrollment
270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 25, 2026, 10:56 PM EDT
Completed Phase 1 Interventional

Multiple-Dose Pharmacokinetics (PK), and Pharmacodynamic (PD) Effect of NSI-189 Phosphate in Depression Patient Subjects

NCT01520649
View directory record Official record
Conditions
Depression
Interventions
NSI-189 Phosphate, microcrystalline cellulose capsules
Drug
Lead sponsor
Neuralstem Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Apr 1, 2014 · Synced Sep 25, 2026, 10:56 PM EDT