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Showing 1–24 of 249 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Fiber Intervention Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Thermic & Lipemic Properties of Dietary Carbohydrates

NCT01354574
View directory record Official record
Conditions
Exogenous Obesity, Dietary Modification
Interventions
High Glycemic Index meals, Low Glycemic Index meals
Other
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 48 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Jul 12, 2011 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Intervention for Visceral Adiposity

NCT01350518
View directory record Official record
Conditions
Obesity
Interventions
Benefiber, TrueLemon
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
20 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 2, 2026, 1:01 PM EDT
Recruiting Not applicable Interventional

A Dietary Study for People With Multiple Myeloma

NCT07226609
View directory record Official record
Conditions
Multiple Myeloma
Interventions
nutrition counseling and coaching, dietary guidelines, research dietitian visit, Questionnaires, Frozen pre-prepared meals
Other · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 2, 2026, 1:01 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Ovolux Beauty From Within Trial#2

NCT07188051
View directory record Official record
Conditions
Skin Sagging, Skin Wrinkling, Skin Dryness
Interventions
Ovolux brand eggshell membrane powder, Placebo
Dietary Supplement
Lead sponsor
ESM Technologies, LLC
Industry
Eligibility
35 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Whole Grain and Fiber Addition Study

NCT03623308
View directory record Official record
Conditions
Healthy
Interventions
Fiber cereal
Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 31, 2019 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

What's Hopping? Cricket Protein and Human Gut Microbiota

NCT03383341
View directory record Official record
Conditions
Healthy
Interventions
Cricket Protein Powder, Placebo control
Dietary Supplement · Other
Lead sponsor
Colorado State University
Other
Eligibility
18 Years to 65 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 3, 2019 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of a Prebiotic and Probiotic Supplement to Provide Relief From Symptoms Associated With Bacterial Vaginosis and Yeast Infections.

NCT06665126
View directory record Official record
Conditions
Bacterial Vaginosis, Yeast Infection
Interventions
Prebiotic + Probiotic Supplement, Active Placebo Supplement, Excipient Placebo Supplement
Dietary Supplement
Lead sponsor
Happy V
Industry
Eligibility
25 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 2, 2026, 1:01 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Multi-level Mother-daughter Physical Activity Intervention for Pre- Adolescent Latinas

NCT07088406
View directory record Official record
Conditions
Physical Activity, Family Communication, Parenting Behavior
Interventions
Physical Activity Promotion, Healthy Eating
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
8 Years to 65 Years · Female only
Enrollment
432 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Novel Food Product Containing Microbiota Accessible Carbohydrates on the Human Microbiome

NCT03058575
View directory record Official record
Conditions
Gut Microbiome
Interventions
Dietary MACs, Control
Dietary Supplement · Other
Lead sponsor
Access Business Group
Industry
Eligibility
40 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Sep 2, 2026, 1:01 PM EDT
Active, not recruiting Not applicable Interventional

Comparison of Surgery and Medicine on the Impact of Diverticulitis (COSMID) Trial

NCT04095663
View directory record Official record
Conditions
Diverticulitis
Interventions
Partial Colectomy, Medical Management
Procedure · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
255 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
29
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 24 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 2, 2026, 1:01 PM EDT
Active, not recruiting Not applicable Interventional

Behavioral Economic Approaches for Population-Based Colorectal Cancer Screening

NCT05693649
View directory record Official record
Conditions
Colorectal Cancer
Interventions
No Direct Patient Outreach, Direct Patient Outreach: Colonoscopy Only, Direct Patient Outreach: Sequential Choice, Visit-Based Nudge/Text, No Nudge/Text
Behavioral
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
50 Years to 72 Years
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 4, 2025 · Synced Sep 2, 2026, 1:01 PM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Tethered Capsule Endoscope in Screening Participants for Barrett Esophagus

NCT00903136
View directory record Official record
Conditions
Esophageal Cancer, Precancerous Condition
Interventions
questionnaire administration, comparison of screening methods, diagnostic endoscopic procedure, esophagogastroduodenoscopy, tethered capsule endoscopy
Other · Procedure
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 9, 2014 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional

Kiwifruit, Prunes, & Fiber for Abdominal and Bowel Symptoms in US Patients With Chronic Constipation

NCT03569527
View directory record Official record
Conditions
Chronic Constipation
Interventions
Kiwifruit, Fiber, Prunes
Dietary Supplement
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 16, 2019 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diet Intervention for Crohn's Disease Patient

NCT04213729
View directory record Official record
Conditions
Crohn Disease
Interventions
Diet Counseling, CD LFD, Dyadic Psychological Support (DPS)
Behavioral · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years to 70 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 28, 2024 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Phase 2 Interventional Results available

Examining the Efficacy of Fecal Microbiota Transplantation (FMT) and Dietary Fiber in Patients With Ulcerative Colitis

NCT03998488
View directory record Official record
Conditions
Ulcerative Colitis, Inflammatory Bowel Diseases
Interventions
Fecal Microbiota Transplantation, Psyllium Husk Powder
Drug · Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 89 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 2, 2025 · Synced Sep 2, 2026, 1:01 PM EDT
Not yet recruiting Not applicable Interventional

Pedi-STAR: Surface Target Antibody-drug Conjugate (ADC) Antigen Expression in Relapsed/Refractory Pediatric Solid and CNS Tumors

NCT07793994
View directory record Official record
Conditions
CNS Tumor, Solid Tumor, Relapsed Cancer, Refractory Cancer, Pediatric Cancer
Interventions
Bulk RNA Sequencing, Immunohistochemistry (IHC)
Diagnostic Test
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
Up to 30 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Dietary Impact on Intestinal Sulfate Metabolism

NCT05333900
View directory record Official record
Conditions
Healthy Nutrition
Interventions
Plant-Based Diet then animal-based diet, Animal-based diet then plant-based diet
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 80 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 4, 2023 · Synced Sep 2, 2026, 1:01 PM EDT
Completed No phase listed Observational

Women's Healthy Eating and Living Study

NCT00003787
View directory record Official record
Conditions
Breast Cancer
Interventions
educational/counseling intervention, therapeutic dietary intervention
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
3,088 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2018
U.S. locations
7
States / cities
Tucson, Arizona • La Jolla, California • Oakland, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2019 · Synced Sep 2, 2026, 1:01 PM EDT
Suspended Not applicable Interventional

The Effect of Diet and Exercise on ImmuNotherapy and the Microbiome (EDEN)

NCT04866810
View directory record Official record
Conditions
Melanoma
Interventions
Intervention Arm, Control
Behavioral
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 120 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
Loma Linda, California • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Wound Healing Following Tooth Extraction and Ridge Preservation Using DFDBA Alone in Particulate Fiber Form and in Combination With Xenograft

NCT05400213
View directory record Official record
Conditions
Dental Extraction, Wound Heal
Interventions
Vallos (DCP), Vallomix (DCF), Vallos-F (DPX), Vallomix-F (DFX)
Device
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years and older
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2025 · Synced Sep 2, 2026, 1:01 PM EDT
Terminated Phase 3 Interventional Results available

Efficacy and Safety Study of PDT Using Photofrin in Unresectable Advanced Perihilar Cholangiocarcinoma (OPUS)

NCT02082522
View directory record Official record
Conditions
Hilar Cholangiocarcinoma
Interventions
Photodynamic therapy-Photofrin, Stenting procedure, Chemotherapy regimen
Drug · Procedure
Lead sponsor
Concordia Laboratories Inc.
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
18
States / cities
Goodyear, Arizona • Scottsdale, Arizona • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fiber and Fish Oil Supplements for the Prevention of Colorectal Cancer

NCT04211766
View directory record Official record
Conditions
Healthy Subject
Interventions
Dietary Fiber, Fish Oil, Comparator
Dietary Supplement · Other
Lead sponsor
Fred Hutchinson Cancer Center
Other
Eligibility
50 Years to 75 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gut-microbiota Targeted Nutritional Intervention for Gut Barrier Integrity at High Altitude

NCT04111263
View directory record Official record
Conditions
Gastrointestinal Injury, Acute Mountain Sickness
Interventions
FP, Placebo, High altitude, Sea level
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
17 Years to 39 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Sep 2, 2026, 1:01 PM EDT
Completed Not applicable Interventional

Effects of In-Wheel Suspension

NCT04467749
View directory record Official record
Conditions
Spinal Cord Injuries, Fatigue, Back Pain, Neck Pain
Interventions
Suspension Wheel
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Sep 2, 2026, 1:01 PM EDT