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ClinicalTrials.gov public records Last synced Oct 21, 2026, 9:06 PM EDT

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Showing 1–24 of 26 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Black pepper extract Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Turmeric and Curcumin on Sebum Production

NCT03066791
View directory record Official record
Conditions
Inflammation; Skin
Interventions
Turmeric tablets, Curcumin and Bioperine tablets, Placebo tablets
Dietary Supplement
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 50 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2018 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Black Pepper on the Absorption of Nutrients in Vegetables

NCT03490955
View directory record Official record
Conditions
Black Pepper, Absorption, Carotenoid
Interventions
salad dressing (canola oil) and black pepper, salad dressing (canola oil), black pepper, salad, Salad dressing (olive oil) and black pepper, Salad dressing (corn oil) and black pepper, Salad dressing (sunflower oil) and black pepper, Salad dressing (flaxseed oil) and black pepper
Other
Lead sponsor
University of Massachusetts, Amherst
Other
Eligibility
18 Years to 30 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Amherst, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2021 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Supplementation With a Black Pepper Extract

NCT05199012
View directory record Official record
Conditions
Waist Circumference, Triglycerides, Appetite, Inflammation, Lipids
Interventions
Black pepper extract
Dietary Supplement
Lead sponsor
The Center for Applied Health Sciences, LLC
Industry
Eligibility
21 Years to 65 Years
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Canfield, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 13, 2023 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Antioxidants on Cardiovascular Risk Measures (Spice Study)

NCT00954902
View directory record Official record
Conditions
Cardiovascular, Psychological Stress
Interventions
High Antioxidant Spice Blend, Trier Psychological Stressor, Placebo antioxidant concentrate
Dietary Supplement · Behavioral · Other
Lead sponsor
Penn State University
Other
Eligibility
30 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 25, 2018 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Acute Effect of Spices on Vascular Health

NCT03064958
View directory record Official record
Conditions
Oxidative Stress
Interventions
Herbs and spices, High fat meal
Other
Lead sponsor
Penn State University
Other
Eligibility
40 Years to 65 Years · Male only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2023 · Synced Oct 21, 2026, 9:06 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Supplements on Muscle Mass and Function While Using GLP-1 Medication

NCT07806838
View directory record Official record
Conditions
Obesity & Overweight, Muscle Mass and Strength, Muscle Function
Interventions
Whey Protein Supplementation, Maltodextrin Placebo Capsules, Mixed Spice Capsules
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 21, 2026, 9:06 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Clinical Study to Evaluate the Efficacy of Four Supplements on Improving Readiness for Intimacy

NCT05862519
View directory record Official record
Conditions
Libido, Intimacy, Gastrointestinal Issues
Interventions
Reset, Stay Ready Fiber, Libido, Testosterone supplement
Dietary Supplement
Lead sponsor
906 CMVI Holdings
Industry
Eligibility
18 Years to 44 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Glucagon Like Peptide 1 (GLP-1) Booster™ RCT Study

NCT07141472
View directory record Official record
Conditions
Blood Sugar; High, Overweight and Obesity, Fat Loss, GLP-1, Glucagon
Interventions
GB, Placebo
Dietary Supplement
Lead sponsor
Lawry Han
Industry
Eligibility
18 Years to 65 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 3, 2025 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional

A Clinical Trial to Assess the Impact of an Alcohol Alternative Herbal Tincture on Signs of Stress Anxiety and Sleep Quality.

NCT06505694
View directory record Official record
Conditions
Anxiety, Stress
Interventions
Alcohol Alternative Herbal Tincture (Test Product), Placebo
Dietary Supplement
Lead sponsor
Apothekary
Industry
Eligibility
21 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Apr 24, 2025 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional

Curcumin, Resveratrol, and Stinging Nettle as Treatments for GWI

NCT05377242
View directory record Official record
Conditions
Gulf War Illness
Interventions
Curcumin, Resveratrol, Stinging Nettle
Dietary Supplement
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
45 Years and older
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Exploratory Investigation of a CBD Supplement's Impact on Sleep, Stress, and Focus

NCT05518019
View directory record Official record
Conditions
Anxiety, Fear, Stress, Low Mood, Sleep
Interventions
The Daily Supplement
Dietary Supplement
Lead sponsor
Prima CBD
Industry
Eligibility
18 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2022 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Spice Consumption on the Microbiome

NCT03676803
View directory record Official record
Conditions
Microbiota
Interventions
mixed spices, placebo capsule containing 5 g of maltodextrin
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 19, 2019 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Turmeric and Exercise-Induced Muscle Damage and Oxinflammation

NCT04765527
View directory record Official record
Conditions
Muscular Injury
Interventions
Turmeric Strength for Joint, Placebo
Dietary Supplement
Lead sponsor
Appalachian State University
Other
Eligibility
18 Years to 50 Years
Enrollment
53 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 21, 2021 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Black Pepper on Energy Expenditure and Substrate Utilization

NCT01729143
View directory record Official record
Conditions
Obesity
Interventions
24-hour energy expenditure and substrate utilization
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
50 Years to 65 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 6, 2016 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioenhancing Effects of Black Pepper With Turmeric on Pain Ratings

NCT05206266
View directory record Official record
Conditions
Pain
Interventions
Turmeric, Turmeric+Black Pepper
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
40 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Glucagon Like Peptide 1 (GLP1) Booster in Healthy Humans

NCT06333496
View directory record Official record
Conditions
Blood Sugar; High, Overweight and Obesity, Fat Burn, Obesity, Heart Health Markers
Interventions
GLP-1 Booster (GB)
Dietary Supplement
Lead sponsor
Alpine Biotech LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional

Visual-OLfactory Training in Participants With COVID-19 Resultant Loss of Smell

NCT04710394
View directory record Official record
Conditions
Anosmia, Covid19, Ageusia, Hyposmia, Hypogeusia, SARS-CoV-2 Infection, COVID-19 Pandemic
Interventions
Smell Training
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 70 Years
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 21, 2022 · Synced Oct 21, 2026, 9:06 PM EDT
Withdrawn Early Phase 1 Interventional

Curcumin/Turmeric as a Treatment for Patients With Subdural Hematomas Recurrence

NCT03845322
View directory record Official record
Conditions
Hematoma, Subdural, Chronic
Interventions
Curcumin Pill, Placebo pills
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Oct 21, 2026, 9:06 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Pilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic Pain

NCT06247813
View directory record Official record
Conditions
Chronic Pain
Interventions
Inflammation Support Formula, Nerve Health Formula, Redox Support Formula
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Newport, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 21, 2026, 9:06 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Daily Mixed Spice Consumption on Memory Function

NCT06889961
View directory record Official record
Conditions
Memory, Cognitive Function
Interventions
Mixed spices, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
50 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 24, 2026 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Single Group Study to Evaluate the Effects of a Supplement on Premenstrual Syndrome

NCT06124326
View directory record Official record
Conditions
Premenstrual Syndrome
Interventions
Premenstrual Syndrome Supplement
Dietary Supplement
Lead sponsor
Rael
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 23, 2024 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Transform Burn on Weight Loss

NCT06092840
View directory record Official record
Conditions
Weight Loss
Interventions
Transform Burn
Dietary Supplement
Lead sponsor
4Life Research, LLC
Industry
Eligibility
18 Years to 72 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Sandy City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Oct 21, 2026, 9:06 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Sabroxy® Supplementation on Insulin Resistance and Cognitive Function in Adults With Mild Cognitive Impairment and Insulin Resistance

NCT07220694
View directory record Official record
Conditions
Insulin Resistance, Mild Cognitive Impairment, Cognitive Decline, Neurodegenerative Disorders
Interventions
Sabroxy®, Placebo
Dietary Supplement · Other
Lead sponsor
SF Research Institute, Inc.
Network
Eligibility
40 Years to 80 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 21, 2026, 9:06 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

RCT of Adjunctive Curcumin and the Meru Health Program

NCT04744545
View directory record Official record
Conditions
Depression
Interventions
Meru Health Program, Curcumin
Behavioral · Dietary Supplement
Lead sponsor
Meru Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 13, 2023 · Synced Oct 21, 2026, 9:06 PM EDT