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ClinicalTrials.gov public records Last synced Oct 17, 2026, 4:07 AM EDT

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Showing 1–24 of 40 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Caffeine 100 MG Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of L-theanine and Caffeine on Attention and Attention-related Brain Activity of Children With Attention Deficit Hyperactivity Disorder

NCT03533556
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
L-theanine, Caffeine, L-theanine-Caffeine Combination, Placebo
Dietary Supplement · Other
Lead sponsor
Texas Tech University
Other
Eligibility
8 Years to 17 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Apr 12, 2019 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional

A Study To Test The Effect Of GW786034 (Pazopanib) On P450 Enzymes

NCT00401583
View directory record Official record
Conditions
Carcinoma, Renal Cell
Interventions
GW786034 (pazopanib), Probe drugs
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
21 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study of Pacritinib and CYP450,Transporter Substrates, and CYP450 3A4 in Healthy Male Subjects

NCT05657613
View directory record Official record
Conditions
Drug Interactions
Interventions
CYP450 Cocktail and Transporter Substrates with Pacritinib, Part 2 -Group A Bosentan 125 mg (CYP450 3A4 inducer) with Pacritinib, Part 2 Group B - Fluconazole (CYP450 3A4 inhibitor) with Pacritinib
Drug
Lead sponsor
CTI BioPharma
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 17, 2024 · Synced Oct 17, 2026, 4:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Nutrition to Support Postoperative Recovery

NCT07109505
View directory record Official record
Conditions
Postoperative Care, Postoperative Complications, Cognition, Nutritional Assessment, Nutritional Intervention
Interventions
Nutritional Shake, Nutritional Instructions Only
Dietary Supplement · Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
70 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

To Determine the Effect of KP-001 on Rosuvastatin, Caffeine PK and the Effect of Fluvoxamine on KP-001 PK in Volunteers

NCT06821698
View directory record Official record
Conditions
Healty Volunteers
Interventions
KP-001, Rosuvastatin calcium10mg, Caffeine citrate, Fluvoxamine
Drug
Lead sponsor
Kaken Pharmaceutical
Industry
Eligibility
18 Years to 55 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Results available

A Study of Abemaciclib in Participants With Cancer That is Advanced or Has Spread to Another Part(s) of the Body

NCT02688088
View directory record Official record
Conditions
Neoplasm Metastasis
Interventions
Drug Cocktail, Abemaciclib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
5
States / cities
Denver, Colorado • Indianapolis, Indiana • Fairway, Kansas + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional

Drug-drug Interaction Trial With Tralokinumab in Moderate to Severe Atopic Dermatitis - ECZTRA 4

NCT03556592
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Tralokinumab, Caffeine, Warfarin, Omeprazole, Metoprolol, Midazolam Hydrochloride
Drug
Lead sponsor
LEO Pharma
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
9
States / cities
Little Rock, Arkansas • Rogers, Arkansas • San Diego, California + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Estimate the Effect of Multiple Dose Abrocitinib on Caffeine, Efavirenz, and Omeprazole in Healthy Participants

NCT05067439
View directory record Official record
Conditions
Healthy Participants
Interventions
Abrocitinib, Omeprazole, Caffeine, Efavirenz
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hollywood, Florida
Source: ClinicalTrials.gov public record
Updated May 31, 2024 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparison of Plasma Caffeine Concentration After Oral Consumption of Caffeinated Beverages With Varied Bioactive Compounds in Healthy Volunteers

NCT04281758
View directory record Official record
Conditions
Plasma Caffeine Concentration
Interventions
Beverage
Other
Lead sponsor
PepsiCo Global R&D
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 30, 2020 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional

Treatment of Orthostatic Hypotension in Autonomic Failure

NCT00223691
View directory record Official record
Conditions
Autonomic Failure, Orthostatic Hypotension
Interventions
Atomoxetine, Acarbose, Pyridostigmine Bromide, Yohimbine, Midodrine HCl, placebo, Modafinil, Octreotide, water intake, Diphenhydramine Hydrochloride, Ranitidine HCL, Tranylcypromine, Ergotamine/ Caffeine, Celecoxib, Pseudoephedrine, Methylphenidate, Indomethacin, Ibuprofen, Oxymetazoline 0.05% nasal solution, Bovril, Acetazolamide, Rivastigmine tartrate, Carbidopa/levodopa, Inflatable abdominal binder, inflatable abdominal binder (sham)
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
389 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 18, 2017 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 3 Interventional Results available

Research Evaluating an Investigational Medication for Erectile Dysfunction - Diabetic ED (REVIVE-D)

NCT00809471
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
placebo, avanafil
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
18 Years and older · Male only
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
39
States / cities
Birmingham, Alabama • Homewood, Alabama • Tucson, Arizona + 32 more
Source: ClinicalTrials.gov public record
Updated Aug 17, 2012 · Synced Oct 17, 2026, 4:07 AM 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 17, 2026, 4:07 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study Evaluating the Potential of BMS-984923 to Alter the Systemic Exposure of Three Orally Administered Probe Substrates

NCT06632990
View directory record Official record
Conditions
Drug Drug Interaction (DDI)
Interventions
BMS-984923, Midazolam, Caffeine, dextromethorphan
Drug
Lead sponsor
Allyx Therapeutics
Industry
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 7, 2025 · Synced Oct 17, 2026, 4:07 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluating the Pharmacokinetics of Oregano and Potential Oregano-drug Interactions Using a Drug Cocktail Approach

NCT06693960
View directory record Official record
Conditions
Interaction
Interventions
Oregano, Drug cocktail
Dietary Supplement · Drug
Lead sponsor
Washington State University
Other
Eligibility
18 Years to 64 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 17, 2026, 4:07 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Ustekinumab on Cytochrome P450 Enzyme Activities Following Induction and Maintenance Dosing in Participants With Active Crohn's Disease or Ulcerative Colitis

NCT03358706
View directory record Official record
Conditions
Crohn Disease, Ulcerative Colitis
Interventions
Ustekinumab IV Infusion, Ustekinumab SC Injection, Midazolam 2 mg, Warfarin 10 mg, Vitamin K 10 mg, Omeprazole 20 mg, Dextromethorphan 30 mg, Caffeine 100 mg
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
3
States / cities
Cypress, California • Miami Springs, Florida • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Fitness Drink Formulas on Energy Expenditure and Fat Metabolism

NCT04455009
View directory record Official record
Conditions
Caffeine, Diet, Healthy, Fat Burn, Cognitive Change, Fatigue
Interventions
Fitness Drink Formula
Dietary Supplement
Lead sponsor
University of Central Florida
Other
Eligibility
18 Years to 35 Years
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jul 2, 2020 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Metabolism-Boosting Beverages

NCT01029236
View directory record Official record
Conditions
Energy Expenditure, Appetite
Interventions
Medifast Metabolism-boosting Beverages
Other
Lead sponsor
Medifast, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Owings Mills, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 9, 2009 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional

Pharmacokinetic Study to Evaluate the Effect of a Single Dose of Guselkumab (CNTO 1959) on CYP 450 Enzyme Activities After Subcutaneous Administration in Participants With Psoriasis

NCT02397382
View directory record Official record
Conditions
Psoriasis
Interventions
Guselkumab, Midazolam, Warfarin, Omeprazole, Dextromethorphan, Caffeine
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 65 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
8
States / cities
Anniston, Alabama • North Hollywood, California • Orlando, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2017 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Ibuprofen and Caffeine in Dental Pain

NCT01929031
View directory record Official record
Conditions
Pain, Postoperative, Tooth Diseases
Interventions
ibuprofen + caffeine, ibuprofen, caffeine, placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years to 55 Years
Enrollment
562 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Nov 16, 2016 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Licorice Botanical Dietary Supplements - Metabolism and Safety in Women

NCT03948243
View directory record Official record
Conditions
Food-drug Interaction
Interventions
Licorice, Alprazolam 2 MG, Caffeine 100 MG, Tolbutamide 250 mg, Dextromethorphan 30mg
Dietary Supplement · Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
40 Years to 79 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 6, 2023 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Not applicable Interventional Results available

Dextro-Amphetamine Versus Caffeine in Treatment-resistant OCD

NCT00363298
View directory record Official record
Conditions
Obsessive-Compulsive Disorder
Interventions
dextro-amphetamine, Sham Comparison
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Oct 17, 2026, 4:07 AM EDT
Completed Phase 1 Interventional Results available

A Study of Mirikizumab in Participants With Plaque Psoriasis

NCT03718884
View directory record Official record
Conditions
Psoriasis
Interventions
Drug Cocktail, Mirikizumab
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
3
States / cities
Anaheim, California • DeLand, Florida • High Point, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 29, 2024 · Synced Oct 17, 2026, 4:07 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction Study to Evaluate the Effects of Ecopipam on the Pharmacokinetics of Multiple Substrates

NCT04764851
View directory record Official record
Conditions
Drug-Interactions
Interventions
ecopipam HCl ~2mg/kg/day, Cohort 1 Probe Cocktail, Cohort 2 Probe Cocktail, Cohort 3 Probe Cocktail
Drug · Combination Product
Lead sponsor
Emalex Biosciences Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 24, 2021 · Synced Oct 17, 2026, 4:07 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Caffeine on Chess Performance and Cognitive Function in Professional Chess Players

NCT07641335
View directory record Official record
Conditions
Cognitive Performance, Attention, Reaction Time, Caffeine
Interventions
Caffeinated Coffee, Decaffeinated Coffee Placebo
Dietary Supplement
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 50 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 30, 2026 · Synced Oct 17, 2026, 4:07 AM EDT