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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Caffeine Pill Clear all
Completed Early Phase 1 Interventional Accepts healthy volunteers

Testing Potential Synergistic Effects of Albuterol and Caffeine on Metabolic Rate

NCT02135965
View directory record Official record
Conditions
Healthy Volunteers
Interventions
2mg of Albuterol, 4mg of Albuterol, 100mg of Caffeine, 200mg of Caffeine, Albuterol 2mg & Caffeine 100mg, Albuterol 2mg and Caffeine 200mg, Albuterol 4mg and Caffeine 100mg, Albuterol 4mg and Caffeine 200mg
Drug
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 50 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Dec 17, 2015 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Phase 1 Interventional

Examining Caffeine as a Treatment for Antidepressant-induced Arousal Dysfunction in Women

NCT05685407
View directory record Official record
Conditions
Female Sexual Arousal Disorder
Interventions
Caffeine, Placebo
Drug · Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Cognition With Neurodegradation Countermeasure

NCT05715073
View directory record Official record
Conditions
Hemodynamics, Caffeine, TeaCrine, Cognitive Change
Interventions
TeaCrine and Caffeine, Caffeine, Placebo
Dietary Supplement · Other
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 28, 2023 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Results available

An Electronic Clinical Decision Support Tool to Reduce Low-value Antipsychotic Prescriptions

NCT04851691
View directory record Official record
Conditions
Alzheimer Disease, Dementia Alzheimers, Dementia of Alzheimer Type
Interventions
EHR CDS, Usual Care
Behavioral · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 2, 2026, 1:03 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Cocoa-rich Bioflavanol Supplementation Effects During Cold Exposure

NCT04359082
View directory record Official record
Conditions
Cold Exposure, Manual Dexterity, Gut Microbiome
Interventions
CocoaVia supplement, Placebo Pill
Dietary Supplement · Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 49 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2021 · Synced Sep 2, 2026, 1:03 PM 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 17, 2017 · Synced Sep 2, 2026, 1:03 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Pain Management After Shoulder Arthroplasty

NCT04872270
View directory record Official record
Conditions
Caffeine, Pain, Joint
Interventions
Total Shoulder Arthroplasty, Caffeine Pill, Percocet 10Mg-325Mg Tablet, Zofran 4Mg Tablet
Procedure · Drug
Lead sponsor
Rothman Institute Orthopaedics
Other
Eligibility
55 Years and older
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 3, 2021 · Synced Sep 2, 2026, 1:03 PM EDT
Withdrawn Not applicable Interventional

Mobile App With Patient Financial Incentives for Adherence to Heart Failure Medications & Daily Self-Weighing

NCT03034551
View directory record Official record
Conditions
Heart Failure, Heart Failure, Congestive, Heart Failure, Systolic
Interventions
Financial Incentive, Mobile Phone App, and Cellular Scale
Behavioral
Lead sponsor
Wellth Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Plainsboro, New Jersey
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Sep 2, 2026, 1:03 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

EIMD Mechanisms Causing Force Loss

NCT02125643
View directory record Official record
Conditions
Healthy
Interventions
Caffeine, Flour
Drug · Other
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 35 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Norman, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 4, 2017 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Caffeine and Cerebrovascular Reactivity

NCT04730193
View directory record Official record
Conditions
Caffeine
Interventions
Caffeine, Placebo
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 8, 2022 · Synced Sep 2, 2026, 1:03 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Exploring Sympathetic Nervous System Function in Individuals With Down Syndrome

NCT07238465
View directory record Official record
Conditions
Down Syndrome, Autonomic Dysfunction
Interventions
Fear Response, Cold Stress, Pain Response, Caffeine, 12-Hour Fast, Maximal Dynamic Exercise
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of a Thermogenic Dietary Supplement on Metabolic, Hemodynamic, and Mood Responses

NCT03678116
View directory record Official record
Conditions
Energy Metabolism, Heart Rate, Blood Pressure, Mood
Interventions
Sugar Pill (placebo), Caffeine (plus Teacrine and Cayenne), Caffeine (plus Teacrine)
Drug · Dietary Supplement
Lead sponsor
University of Mary Hardin-Baylor
Other
Eligibility
18 Years to 35 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Belton, Texas
Source: ClinicalTrials.gov public record
Updated Mar 27, 2019 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Disentangling Anxiety Sensitivity and Anxiety-induced Physiological Stress Response

NCT02372110
View directory record Official record
Conditions
Anxiety
Interventions
HPA, ANS stimulation, Placebo
Drug
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Sep 2, 2026, 1:03 PM EDT
Terminated Phase 4 Interventional Results available

Prochlorperazine Versus Acetaminophen, Aspirin, and Caffeine for the Treatment of Acute Migraine

NCT01629329
View directory record Official record
Conditions
Migraine Headaches
Interventions
Aspirin, Acetaminophen, Caffeine pills, Prochlorperazine 10mg
Drug
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years to 65 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 17, 2020 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Phase 4 Interventional Results available

Oral Caffeine Use for Pain Management in AIS Patients After Spinal Fusion

NCT04950660
View directory record Official record
Conditions
Adolescent Idiopathic Scoliosis
Interventions
Caffeine Tablet, Placebo
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
12 Years to 17 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 20, 2025 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

"The Effects of Caffeine on Overactive Bladder Symptoms and Mental Health in Postmenopausal Women"

NCT02180048
View directory record Official record
Conditions
Overactive Bladder, Caffeine, Menopause
Interventions
400 mg of caffeine/day (Two 200mg pills/day), 200 mg of caffeine/day (One 200mg pill and one placebo pill), Two placebo pills/day
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
58 Years and older · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Oct 24, 2018 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a Caffeine Blend on Reaction Time, Mental Performance and Focus in Athletic Males

NCT03019523
View directory record Official record
Conditions
Mental Fatigue
Interventions
Caffeine Blend, Sugar Pill
Dietary Supplement · Other
Lead sponsor
University of Mary Hardin-Baylor
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Belton, Texas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2017 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

The Effect of Tablet Size on Cognitive Performance Caffeine

NCT03694886
View directory record Official record
Conditions
Placebo Effect
Interventions
Caffeine Anhydrous with small sucrose pill, Placebo - large sucrose pill, Caffeine Anhydrous with large sucrose pill, Placebo - small sucrose pill
Drug · Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Sep 2, 2026, 1:03 PM EDT
Completed Not applicable Interventional Results available

Efficacy of Sleep Interventions for Posttraumatic Stress Disorder (PTSD)

NCT00393874
View directory record Official record
Conditions
Anxiety Disorders, Mood Disorders, Insomnia, Nightmares
Interventions
Behavioral Sleep Intervention, Prazosin, Placebo
Behavioral · Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 23, 2016 · Synced Sep 2, 2026, 1:03 PM EDT