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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:29 PM EDT

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Showing 1–24 of 236 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Green tea Clear all
Completed Not applicable Interventional Results available

Transcutaneous Electrical Acustimulation (TEA) for Gastroparesis

NCT05362578
View directory record Official record
Conditions
Gastroparesis With Diabetes Mellitus
Interventions
transcutaneous electrical accustimulation at treatment point., transcutaneous electrical accustimulation at sham point.
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 80 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Modified Consent Form Utility

NCT00715923
View directory record Official record
Conditions
Healthy
Interventions
Modified consent form, Standard consent form
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2015 · Synced Oct 21, 2026, 5:29 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Early-feasibility Study to Evaluate Usability and Safety of the Watch-Transcutaneous Electrical Acustimulation (TEA) Device

NCT06366074
View directory record Official record
Conditions
Healthy
Interventions
Watch-TEA group, Tethered TEA device
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fish Oil and Green Tea Extract in Preventing Prostate Cancer in Patients Who Are at Risk for Developing Prostate Cancer

NCT00253643
View directory record Official record
Conditions
Precancerous Condition, Prostate Cancer
Interventions
green tea catechin extract, fish oil, placebo
Dietary Supplement · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
21 Years to 120 Years · Male only
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
3
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 1 Interventional

Extrapleural Intercostal Catheter vs. Thoracic Epidural for Thoracotomy Pain

NCT00373633
View directory record Official record
Conditions
THoracotomy
Interventions
Thoracic Epidural, Extrapleural Intercostal Catheter
Procedure
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 15, 2014 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Green Tea and Tai Chi for Bone Health

NCT00625391
View directory record Official record
Conditions
Osteoporosis
Interventions
Placebo, Green Tea Polyphenols (GTP), Placebo+Tai Chi (TC), GTP+TC
Drug
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
Female only
Enrollment
171 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Aug 18, 2014 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 1 Interventional

Green Tea Extract in Treating Patients With Advanced Solid Tumors

NCT00003197
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
green tea extract
Dietary Supplement
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2000
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 26, 2013 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional

Role of Home-Based Transcutaneous Electrical Acustimulation for Treatment of Pain in Subjects With Chronic Pancreatitis

NCT06721572
View directory record Official record
Conditions
Chronic Pancreatitis, Pancreatitis
Interventions
TEA
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 6, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 2 Interventional Results available

Green Tea Extract in Treating Patients With Nonmetastatic Bladder Cancer

NCT00666562
View directory record Official record
Conditions
Stage I Bladder Cancer, Stage II Bladder Cancer, Stage III Bladder Cancer
Interventions
Defined Green Tea Catechin Extract, Laboratory Biomarker Analysis, Pharmacological Study, Placebo, Therapeutic Conventional Surgery
Dietary Supplement · Other · Drug + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
6
States / cities
Birmingham, Alabama • Burlington, Massachusetts • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2017 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 2Phase 3 Interventional

Effect of Nutritional Products on Metabolic Parameters in Subjects With Type 2 Diabetics

NCT01324921
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
No breakfast/beverage only, Breakfast, 10004RF
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
18 Years to 75 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
2
States / cities
Glen Ellyn, Illinois • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 30, 2011 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Green Tea and Reduction of Breast Cancer Risk

NCT00917735
View directory record Official record
Conditions
Breast Cancer
Interventions
Green tea extract supplement, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
1,075 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
5
States / cities
Edina, Minnesota • Maple Grove, Minnesota • Minneapolis, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2016 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

A Comparison Trial Between PCA and Epidural Analgesia for Pectus Excavatum Repair

NCT02056301
View directory record Official record
Conditions
Pectus Excavatum
Interventions
Hydromorphone, Morphine
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
8 Years to 18 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Transcutaneous Electroacupuncture for Gastroparesis

NCT01469286
View directory record Official record
Conditions
Diabetic Gastroparesis
Interventions
TEA, Sham-TEA
Device
Lead sponsor
Transtimulation Research, Inc
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
2
States / cities
Jackson, Mississippi • El Paso, Texas
Source: ClinicalTrials.gov public record
Updated May 1, 2017 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Flavonoids on Gut Permeability in Cyclists

NCT03427879
View directory record Official record
Conditions
Gut Permeability, Gut Inflammation
Interventions
Low flavonoid beverage, High flavonoid beverage
Drug
Lead sponsor
Utah State University
Other
Eligibility
18 Years to 49 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Feb 25, 2021 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 2 Interventional

Defined Green Tea Catechin Extract in Treating Patients With Localized Prostate Cancer Undergoing Surgery

NCT01340599
View directory record Official record
Conditions
Stage I Prostate Cancer, Stage IIA Prostate Cancer, Stage IIB Prostate Cancer
Interventions
defined green tea catechin extract, placebo, immunohistochemistry staining method, immunoenzyme technique, questionnaire administration, therapeutic conventional surgery, high performance liquid chromatography, mass spectrometry
Dietary Supplement · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
45 Years to 75 Years · Male only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 2 Interventional Results available

Green Tea Extract in Treating Patients With Low-Risk Prostate Cancer

NCT01928485
View directory record Official record
Conditions
Stage I Prostate Cancer, Stage IIA Prostate Cancer, Stage IIB Prostate Cancer
Interventions
active surveillance, Sunphenon, laboratory biomarker analysis, Questionnaire Administration
Other · Drug
Lead sponsor
Sanjay Gupta PhD
Other
Eligibility
45 Years to 85 Years · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 2 Interventional Results available

Green Tea Extract and Prostate Cancer

NCT00676780
View directory record Official record
Conditions
Prostate Cancer
Interventions
Polyphenon E (EGCG)
Drug
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 8, 2012 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

Endothelial Hyperpolarization in Humans

NCT00166166
View directory record Official record
Conditions
Hyperlipidemia
Interventions
Tetraethylammonium (TEA), L-NG-monomethyl Arginine (L-NMMA), Bradykinin, Sodium nitroprusside, Acetylcholine, Saline, Fluconazole
Drug
Lead sponsor
Emory University
Other
Eligibility
21 Years to 65 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2013
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 15, 2018 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 3 Interventional Results available

A Study of Flurbiprofen 8.75 mg Lozenge in Patients With Pharyngitis

NCT01048866
View directory record Official record
Conditions
Pharyngitis
Interventions
placebo, flurbiprofen, acetaminophen 650mg
Drug
Lead sponsor
Reckitt Benckiser LLC
Industry
Eligibility
18 Years and older
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 21, 2017 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 1 Interventional

Defined Green Tea Catechin Extract in Treating Women With Hormone Receptor Negative Stage I-III Breast Cancer

NCT00516243
View directory record Official record
Conditions
Estrogen Receptor-negative Breast Cancer, Progesterone Receptor-negative Breast Cancer, Stage I Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer
Interventions
placebo, quality-of-life assessment, questionnaire administration, laboratory biomarker analysis, defined green tea catechin extract
Other · Procedure · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
21 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
4
States / cities
New York, New York • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 12, 2014 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Phase 2 Interventional

Green Tea Extract in Treating Patients With Actinic Keratosis

NCT00005097
View directory record Official record
Conditions
Non-melanomatous Skin Cancer
Interventions
Polyphenon E and Placebo
Drug
Lead sponsor
Frank Meyskens
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Oct 21, 2026, 5:29 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Impact of Sleep Deprivation and Caffeine in Medical Professionals

NCT04273841
View directory record Official record
Conditions
Sleep Deprivation, Performance
Interventions
Military Energy Gum, Placebo Gum
Dietary Supplement
Lead sponsor
Walter Reed Army Institute of Research (WRAIR)
Federal
Eligibility
18 Years to 50 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated May 21, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Withdrawn Not applicable Interventional

The Effect of Coffee on the Absorption of Thyroid Hormone in Patients With Thyroid Carcinoma

NCT01707056
View directory record Official record
Conditions
Thyroid Carcinoma, Hypothyroidism
Interventions
Black Coffee, Coffee with Milk, Black Tea, Water
Other
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years to 60 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
3
States / cities
Washington D.C., District of Columbia • Leonardtown, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 17, 2021 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Time Restricted Eating (TRE) Among Native Hawaiian/Pacific Islander Women at Risk for Endometrial Cancer

NCT04763902
View directory record Official record
Conditions
Endometrial Neoplasms
Interventions
Time Restricted Eating (TRE) Schedule, Control Schedule
Behavioral
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 21, 2026, 5:29 PM EDT