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ClinicalTrials.gov public records Last synced Oct 20, 2026, 11:40 PM EDT

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Showing 49–64 of 64 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Extract tablets Clear all
Completed No phase listed Observational

A Study on Patients With Chronic Kidney Disease (CKD) to Assess Treatment Experience and Patterns, Effect of the Treatment, Patient Outcomes and Patient Quality of Life

NCT04034992
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Not listed
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
1,052 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
11
States / cities
Riverside, California • San Francisco, California • Sanford, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Phase 2 Interventional Results available

A Phase II Biomarker Trial of Gelatin Encapsulated Extract of American Ginseng Root (LEAG) in Breast Cancer

NCT00631852
View directory record Official record
Conditions
Breast Cancer
Interventions
American Ginseng root
Drug
Lead sponsor
Southern Illinois University
Other
Eligibility
18 Years and older · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2019
U.S. locations
1
States / cities
Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 20, 2026, 11:40 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

PEG3350 vs Senna After Urogyn Surgery

NCT06825260
View directory record Official record
Conditions
Obstructive Defecation Syndrome, Postoperative Constipation
Interventions
Senna, Polyethylene glycol 3350
Drug
Lead sponsor
St. Joseph's Health, New York
Other
Eligibility
18 Years and older · Female only
Enrollment
254 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Randomized, Double-Blind, Placebo-Controlled, Parallel Study to Evaluate the Safety of a Bovine Thymus Nuclear Extract

NCT06795945
View directory record Official record
Conditions
Immunology
Interventions
TPG1, TPG2, TPG3, Placebo
Dietary Supplement
Lead sponsor
Standard Process Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Leukotriene Antagonism in Recruitment of CD49d Expressing Neutrophils in Atopic Subjects

NCT03039101
View directory record Official record
Conditions
Nasal Allergy
Interventions
Nasal lavage, Nasal allergen challenge, Epicutaneous skin testing, Peripheral blood, Montelukast 10Mg Tablet, Placebo Oral Tablet
Procedure · Drug
Lead sponsor
Mitchell Grayson
Other
Eligibility
21 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Oct 20, 2026, 11:40 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating the Bioavailability of Broccoli Extract Supplements

NCT07564674
View directory record Official record
Conditions
Diet, Healthy
Interventions
Avmacol Extra Strength with coating - 1 tablet, Avmacol chewable wafer - 2 tablets, Avmacol Extra Strength with coating - 2 tablets
Dietary Supplement
Lead sponsor
Oregon State University
Other
Eligibility
18 Years to 60 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 7, 2026 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Not applicable Interventional

Effects of Avmacol® in the Oral Mucosa of Patients Following Curative Treatment for Tobacco-related Head and Neck Cancer

NCT03268993
View directory record Official record
Conditions
Head and Neck Cancer, Head and Neck Squamous Cell Carcinoma (HNSCC), Head and Neck Carcinoma, Head and Neck, Tobacco-Related Carcinoma, Carcinoma in Situ, Dysplasia, Hyperplasia, Premalignant Lesion
Interventions
Avmacol
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 7, 2023 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluate Effects of Sprinkled Format REDUCOSE in a Carbohydrate-rich, Mixed Meal on Post-prandial Glycemia

NCT04877366
View directory record Official record
Conditions
Dietary Supplement
Interventions
Dietary Supplement: Sprinkled Format REDUCOSE., Reference control, Active comparator
Dietary Supplement · Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Tustin, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2024 · Synced Oct 20, 2026, 11:40 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Determine if Beta Glucan Reduces the Incidence, Duration or Severity of URTIs Among Skiers

NCT05917015
View directory record Official record
Conditions
Upper Respiratory Tract Infections, Mental Stress
Interventions
Treatment, Placebo
Dietary Supplement · Other
Lead sponsor
USANA Health Sciences
Industry
Eligibility
18 Years to 30 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Park City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 23, 2023 · Synced Oct 20, 2026, 11:40 PM EDT
Not listed Not applicable Interventional

Effects of Pine Cone Extract on Serum IgE Levels in Perennial Rhinitis

NCT04024033
View directory record Official record
Conditions
Perennial Allergic Rhinitis
Interventions
pine cone extract, placebo
Dietary Supplement · Other
Lead sponsor
University of South Florida
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2023
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Oct 20, 2026, 11:40 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Adjunctive Withania Somnifera (Ashwagandha) for Persistent Symptoms in People With Schizophrenia

NCT03437668
View directory record Official record
Conditions
Schizophrenia
Interventions
WSE, Placebo Oral Tablet
Drug
Lead sponsor
Chengappa, K.N. Roy, MD
Other
Eligibility
18 Years to 64 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
Los Angeles, California • Catonsville, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Oct 20, 2026, 11:40 PM EDT
Terminated Phase 4 Interventional Results available

Naloxegol to Prevent Lower Gastrointestinal Paralysis in Critically Ill Adults Administered Opioids

NCT02977286
View directory record Official record
Conditions
Constipation
Interventions
Naloxegol Oral Tablet, Placebo Oral Tablet, Docusate Sodium 100 Mg oral capsule [Colace], Senna 217 Mg Oral Tablet, Polyethylene Glycols, Bisacodyl 10 mg Suppository, Magnesium Citrate Oral Liquid Product, Methylnaltrexone
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 16, 2023 · Synced Oct 20, 2026, 11:40 PM EDT
Terminated Phase 2 Interventional Results available

Study of Pharmacologic Manipulation of AGE (Advanced Glycation Endproducts) Levels in Prostate Cancer Patients Receiving Androgen Deprivation Therapy

NCT02946996
View directory record Official record
Conditions
Prostate Cancer
Interventions
Metformin, OPC
Drug · Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older · Male only
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 5, 2026 · Synced Oct 20, 2026, 11:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Broccoli Extract Supplementation in Older Adults With Alcohol Use Disorder

NCT05902754
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Generally Recognized as Safe - Sulforaphane, Placebo
Dietary Supplement
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
50 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Oct 20, 2026, 11:40 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Desensitization and Cross-Desensitization During Oral Grass or Ragweed Pollen Immunotherapy

NCT02676765
View directory record Official record
Conditions
Immunologic Desensitization
Interventions
allergen extract tablet, Placebo tablet
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 18, 2022 · Synced Oct 20, 2026, 11:40 PM EDT
Not listed Not applicable Interventional

Measurement of the Effect of Gingko Biloba Extract on Ocular and Nailfold Blood-flow in NTG

NCT03761992
View directory record Official record
Conditions
Normal Tension Glaucoma
Interventions
Gingko Baloba, Placebo
Dietary Supplement · Other
Lead sponsor
Robert Ritch, MD, LLC.
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Oct 20, 2026, 11:40 PM EDT