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ClinicalTrials.gov public records Last synced Oct 18, 2026, 11:57 PM EDT

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Showing 217–240 of 871 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Fiber Clear all
Recruiting Not applicable Interventional

Regular Diet After Colorectal Surgery

NCT07540845
View directory record Official record
Conditions
Colorectal, Diet Habits, Surgery, Post-operative Care
Interventions
Regular Diet Post-Operatively, Historical Cohort: Low-Fiber Diet
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Maternal & Offspring Microbiome Study

NCT05123612
View directory record Official record
Conditions
Pregnancy Related, Microbiome, Immune Function, Inflammation
Interventions
Fiber, Fermented Foods
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
135 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Results available

Assessing Benefits of Near Infrared Autofluorescence (NIRAF) Detection for Identifying Parathyroid Glands During Total Thyroidectomy

NCT05022667
View directory record Official record
Conditions
Thyroid Neoplasms, Thyroid Diseases, Hypoparathyroidism, Endocrine System Diseases, Endocrine Gland Neoplasms, Neoplasms by Site, Neoplasms, Head and Neck Neoplasms, Parathyroid Diseases
Interventions
PTeye
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 8, 2025 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Phase 1Phase 2 Interventional

Scalp Psoriasis Treatment With a Fiber Optic Comb

NCT00007293
View directory record Official record
Conditions
Psoriasis
Interventions
UV-B Lightsource and Fiber Optic Comb
Device
Lead sponsor
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
NIH
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 4, 2007 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Protein Quality on Appetite Control, Reward-driven Eating, & Subsequent Food Intake

NCT02285907
View directory record Official record
Conditions
Appetite and General Nutritional Disorders
Interventions
Macronutrient and Fiber Matched BEEF, Macronutrient and Fiber Matched SOY, Serving Size Matched BEEF, Serving Size Matched SOY
Other
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years to 30 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Oct 18, 2026, 11:57 PM EDT
Terminated No phase listed Observational

Cardiomyopathy in Steroid-resistant Nephrotic Syndrome: Impact of Focal Segmental Glomerulosclerosis

NCT00883636
View directory record Official record
Conditions
Focal Segmental Glomerulosclerosis, Nephrotic Syndrome, Steroid Resistant Nephrotic Syndrome, Chronic Kidney Disease
Interventions
Cardiovascular Assessment, Renal Assessment, Genetic Evaluation
Other
Lead sponsor
Northwell Health
Other
Eligibility
6 Months to 21 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
New Hyde Park, New York
Source: ClinicalTrials.gov public record
Updated Jun 19, 2013 · Synced Oct 18, 2026, 11:57 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Office Based Transperineal Laser Ablation for Benign Prostatic Hyperplasia HYPERPLASIA

NCT04760483
View directory record Official record
Conditions
Male Urogenital Diseases, Genital Diseases, Male, Prostatic Disease, Prostatic Hyperplasia
Interventions
SoracteLite(TM) TPLA for BPH
Device
Lead sponsor
Urological Research Network, LLC
Other
Eligibility
40 Years to 85 Years · Male only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Hialeah, Florida
Source: ClinicalTrials.gov public record
Updated Jan 26, 2023 · Synced Oct 18, 2026, 11:57 PM EDT
Not yet recruiting No phase listed Observational

Modified SOLTIVE Study

NCT07838077
View directory record Official record
Conditions
Calculi, Renal, Calculi, Urinary, Benign Prostatic Hyperplasia
Interventions
SOLTIVE Premium SuperPulsed Laser System
Device
Lead sponsor
Olympus Corporation of the Americas
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Not yet recruiting Not applicable Interventional

Comparing Prebiotic Fiber Supplements for Gut Health and Digestive Comfort

NCT07525180
View directory record Official record
Conditions
Healthy Participants
Interventions
LOAM, Inulin, Cellulose Placebo
Dietary Supplement
Lead sponsor
Ventoscity LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Not applicable Interventional

Impact of Dietary Fiber Supplementation on Colonic Microbiome

NCT05643859
View directory record Official record
Conditions
Benign Colorectal Neoplasm, Non-Neoplastic Anal Disorder
Interventions
Dietary Fiber, Proctoscopy or anoscopy with Biopsy, Colonoscopy, Questionnaire Administration
Dietary Supplement · Procedure · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Goji vs. Fiber on Macular Degeneration

NCT06237127
View directory record Official record
Conditions
Age-Related Macular Degeneration
Interventions
Goji berry, Fiber
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
65 Years to 95 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Fiber and Calcium Absorption in Older Men

NCT06519877
View directory record Official record
Conditions
Aging
Interventions
Soluble corn fiber
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Randomized, Crossover Study to Assess the Effects of Dietary Fiber-containing Bars on Glucose and Insulin Responses

NCT03796286
View directory record Official record
Conditions
Blood Glucose, Insulin Sensitivity, Dietary Fiber
Interventions
Medium-fiber bar, High-fiber bar, Control bar (0 g fiber)
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
18 Years to 65 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
2
States / cities
Boca Raton, Florida • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2019 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting No phase listed Observational

Post-Stroke Sensory Reweighting on Walking and Balance Outcomes

NCT06727097
View directory record Official record
Conditions
Ischemic Stroke
Interventions
Posturography, Walking Speed, Instrumented 7M Timed UP and GO, Fall Event Records, MRI (3T)
Diagnostic Test · Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Not listed Not applicable Interventional

Effect of Preoperative Diet on Perioperative Gut Microbiome

NCT05027763
View directory record Official record
Conditions
Surgical Site Infection
Interventions
high-fiber/low fat, fermented
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Resistant Starch Insulin Sensitivity Trial

NCT01027325
View directory record Official record
Conditions
Healthy, Cardiovascular Disease, Atherogenic Dyslipidemia, Insulin Resistance
Interventions
Dietary Intervention
Other
Lead sponsor
UCSF Benioff Children's Hospital Oakland
Other
Eligibility
20 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Berkeley, California • Oakland, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2013 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Aimmune Longitudinal Collaboration Study

NCT07218640
View directory record Official record
Conditions
Stool Spore Colony Forming Units, Microbiome Composition, Dietary Fiber, Stress
Interventions
Chia seeds
Other
Lead sponsor
Aimmune Therapeutics, Inc.
Industry
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Ambler, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Not applicable Interventional

Dietary Insights and Nutritional Education in Adults on GLP-1 Therapy

NCT07518407
View directory record Official record
Conditions
Obesity Type 2 Diabetes Mellitus, Obesity
Interventions
SWITCH Diets - Mobile Nutrition Behavioral Intervention
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Effect of Mentoring on Endotracheal Tube Exchange Using a New Device

NCT02763189
View directory record Official record
Conditions
Effects of Training
Interventions
Expert mentoring, Self-study
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 11, 2022 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Heel Wedge Properties on Roll-over of the Intrepid Dynamic Exoskeletal Orthosis (IDEO)

NCT02509819
View directory record Official record
Conditions
Physical Disability
Interventions
Heel Cushion Material Bulk (foam)
Device
Lead sponsor
Brooke Army Medical Center
Federal
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 16, 2019 · Synced Oct 18, 2026, 11:57 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

L. Acidophilus (Strain TW01) on Gut Health, Body Composition, and Inflammation

NCT06912100
View directory record Official record
Conditions
Overweight (BMI > 25), Obese, Otherwise Healthy Volunteers
Interventions
Placebo, Probiotic
Dietary Supplement
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 13, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Pilot Study to Determine the Effect of a Cobiotic Formulation on the Gastrointestinal Microbiome

NCT01724736
View directory record Official record
Conditions
Pre Diabetic
Interventions
Placebo, NM504:
Drug
Lead sponsor
NuMe Health
Industry
Eligibility
18 Years to 70 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 18, 2026, 11:57 PM EDT
Recruiting Not applicable Interventional

Thulium Fiber Laser (TFL) vs Thulio Pulsed Thulium:YAG (p-Tm:YAG)

NCT06721975
View directory record Official record
Conditions
Kidney Stones, Nephrolithiasis
Interventions
Thulio pulsed Thulium:YAG (p-Tm:YAG), Thulium Laser Fiber (TFL)
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Oct 18, 2026, 11:57 PM EDT
Completed Not applicable Interventional Results available

Brain Energy for Amyloid Transformation in Alzheimer's Disease Study

NCT03472664
View directory record Official record
Conditions
Alzheimer Disease, Mild Cognitive Impairment
Interventions
low carbohydrate/high fat diet, low fat/high carbohydrate diet
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years to 85 Years
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 18, 2026, 11:57 PM EDT