Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 19, 2026, 9:06 AM EDT

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Showing 409–432 of 509 matching trials from the live ClinicalTrials.gov search.
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Neo40(TM) With Caffeine on Cycling Time Trial Performance

NCT01710761
Conditions
Healthy
Interventions
Placebo, Nitrate supplement with caffeine
Dietary Supplement
Lead sponsor
University of Texas at Austin
Other
Eligibility
21 Years to 49 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Austin, Texas
Conditions
Gut Health, Bloating, Irregular Bowel Movements, Gastrointestinal Symptoms
Interventions
Active Supplement, Placebo Comparator
Dietary Supplement
Lead sponsor
Belli Welli Inc.
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Completed Not applicable Interventional Accepts healthy volunteers

The Memory and Cognitive Performance Study

NCT04025255
Conditions
Cognitive Function, Memory, Brain Health
Interventions
Braini, Placebo
Dietary Supplement
Lead sponsor
Vita Naturel, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Asheville, North Carolina
Conditions
Marijuana Use
Interventions
Brief Motivational Intervention (BMI), Substance-Free Activity Session (SFAS), Relaxation Session
Behavioral
Lead sponsor
University of Memphis
Other
Eligibility
18 Years and older
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Memphis, Tennessee
Conditions
Obesity, Compensated Cirrhosis, Sarcopenia
Interventions
Continuous Energy Restriction (CER), Alternate Day Modified Fasting (ADMF), Group Health Education Sessions, Late Evening Snack, Physical activity, Self-monitoring, Remotely Supervised Exercise Sessions
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Kansas City, Kansas
Conditions
Knee Osteoarthritis
Interventions
Diet, Exercise
Other
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
College Station, Texas
Conditions
Lumbar Spinal Stenosis
Interventions
Essential amino acids, Alanine
Dietary Supplement
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Orange, California
Conditions
Hair Thinning
Interventions
Xtressé Hair Growth Gummies
Other
Lead sponsor
Restore Biologics Holdings, Inc. dba Xtressé
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Maitland, Florida • Alpharetta, Georgia • Marriottsville, Maryland + 1 more
Conditions
Glucose Intolerance
Interventions
Active, Placebo
Dietary Supplement
Lead sponsor
The Center for Applied Health Sciences, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Canfield, Ohio
Recruiting Not applicable Interventional Accepts healthy volunteers

Lutein, Zeaxathin, and Fish Oil Supplementation

NCT06489873
Conditions
Cognitive Performance, Age-Related Macular Degeneration, Bone Loss
Interventions
Active Comparator (Lutein, zeaxanthin, and fish oil supplement (LZF), Placebo Comparator
Dietary Supplement
Lead sponsor
Texas A&M University
Other
Eligibility
18 Years to 45 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
College Station, Texas
Completed Not applicable Interventional Results available

ESSENTIAL Trial™ Sham Cross-over

NCT02279420
Conditions
Obesity
Interventions
g-Cath EZ™ Suture Anchor Delivery Catheter
Device
Lead sponsor
USGI Medical
Industry
Eligibility
23 Years to 61 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
11
States / cities
Scottsdale, Arizona • Miami, Florida • Dalton, Georgia + 8 more
Conditions
Hot Flashes, Menopause, Vasomotor Symptoms
Interventions
Placebo, Omega-3, Yoga, Exercise, Usual Activity
Dietary Supplement · Behavioral
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
40 Years to 62 Years · Female only
Enrollment
355 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
3
States / cities
Oakland, California • Indianapolis, Indiana • Seattle, Washington
Conditions
Esophageal Cancer, Esophageal Carcinoma
Interventions
Exercise and Nutrition, Usual Care Group
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Completed Not applicable Interventional Accepts healthy volunteers

Blood Flow Restriction and Creatine Supplementation in Women

NCT05877417
Conditions
Physical Inactivity
Interventions
Creatine Monohydrate, Blood Flow Restriction, Exercise
Dietary Supplement · Device · Other
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Orlando, Florida
Recruiting Not applicable Interventional Accepts healthy volunteers

THRIVE Well Cancer FDTN/Exercise_Creatine Supplementation

NCT06395506
Conditions
Breast Cancer, Breast Cancer Female, Muscle Weakness
Interventions
Creatine
Dietary Supplement
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Galveston, Texas
Conditions
Lactose Intolerance
Interventions
Lactobacillus acidophilus MPH734, Placebo
Dietary Supplement
Lead sponsor
Lemuel W. Taylor IV
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Belton, Texas
Completed Not applicable Interventional Accepts healthy volunteers

The Body's Response to Food Intake in Older Adults

NCT00798408
Conditions
Elderly
Interventions
Fluid Supplement, Solid Supplement
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
60 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
West Lafayette, Indiana
Completed Not applicable Interventional Accepts healthy volunteers

Time-Restricted Feeding Plus Resistance Training in Active Females

NCT03404271
Conditions
Healthy Active Females
Interventions
Beta-hydroxy beta-methylbutyrate, Resistance Training, Protein Supplementation, Time-Restricted Feeding
Dietary Supplement · Other · Behavioral
Lead sponsor
Texas Tech University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lubbock, Texas
Conditions
Alcohol Use and Intimate Partner Violence
Interventions
Motivational Enhancement Therapy, Alcohol Education Control, Treatment as Usual, Strength at Home
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
3
States / cities
Boston, Massachusetts • Ann Arbor, Michigan • Minneapolis, Minnesota
Conditions
Osteoporotic Fractures, Osteoporosis, Postmenopausal
Interventions
Zoledronic acid, vitamin D, calcium, Saline
Drug · Dietary Supplement · Other
Lead sponsor
Susan L. Greenspan
Other
Eligibility
65 Years and older · Female only
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
1
States / cities
New Kensington, Pennsylvania
Conditions
Lumbar Spine Injury, Spinal Fusion, Frailty, Prehabilitation, Nutritional Supplementation, Functional Outcome
Interventions
Multimodal Prehabilitation, Standard Pre-Surgical Clinical Care
Other
Lead sponsor
University of Florida
Other
Eligibility
55 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Conditions
Activity-Related Knee Discomfort, Joint Discomfort, Functional Joint Pain, Functional Knee Pain, Knee Acute and Chronic Pain
Interventions
NT-II™ (240 mg), NT-II™ 480 mg, Glucosamine/Chondroitin
Dietary Supplement
Lead sponsor
Hofseth Biocare ASA
Industry
Eligibility
20 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
San Francisco, California
Conditions
Infant, Newborn, Diseases, Other Preterm Infants, Infant, Small for Gestational Age, Premature Birth, Bronchopulmonary Dysplasia, Retinopathy of Prematurity
Interventions
Surfactant, Continuous Positive Airway Pressure (CPAP), Supplemental oxygen with target saturation of 85 to 89%, Supplemental oxygen with target saturation of 91 to 95%
Drug · Device
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
24 Weeks to 27 Weeks
Enrollment
1,316 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2016
U.S. locations
22
States / cities
Birmingham, Alabama • Palo Alto, California • San Diego, California + 18 more
Conditions
Malnutrition, ESRD
Interventions
Nutritional Supplement ProStat 64 twice a day, Placebo supplement
Dietary Supplement
Lead sponsor
Fresenius Medical Care North America
Industry
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
6
States / cities
Wichita, Kansas • Springfield, Massachusetts • Columbus, Mississippi + 3 more