Effects of Energy Drinks on Cardiovascular Endpoints

NCT ID: NCT07212803

Last Updated: 2025-11-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

3 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-11-01

Study Completion Date

2026-09-30

Brief Summary

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This is a clinical trial looking at the impact of energy drinks on heart related parameters. The study will enroll 3 participants who will be exposed to 8 different interventions.

Detailed Description

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This study is a randomized, double-blind, controlled, crossover, proof-of-concept trial designed to examine how energy drinks affect heart rhythm and other health measures in healthy adults aged 18 to 40. This study investigates the cardiovascular safety of energy drinks by examining their effects on electrocardiographic parameters, with a specific focus on the QTc interval.

The protocol consists of two phases conducted with 3 healthy volunteers. Phase A (Visits 1-4) evaluates four interventions: 1) energy drink A 2) moxifloxacin 3) caffeine 4) placebo.

Phase B (Visits 5-8) evaluates four interventions: 1) energy drink B 2) taurine 3) caffeine + taurine 4) lower dose energy drink A.

After an overnight fast participants will consume the study intervention within a 30 minute period. Over the next 4 hours, the electrocardiogram, blood pressure, hemodynamics, glucose, endothelial function, and side effects will be monitored. Participants maintain minimal physical activity during this period.

Conditions

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Healthy Volunteers Safety After Oral Intake

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Randomized, Double-Blind, Controlled, Crossover Study
Primary Study Purpose

OTHER

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Phase B: Lower Dose Energy Drink A

Energy Drink A (189 mg caffeine)

Group Type EXPERIMENTAL

Lower Dose Energy Drink A

Intervention Type DIETARY_SUPPLEMENT

591 mL caffeine- and taurine-containing commercially available beverage (Formula A)

Phase A: Energy Drink A + Placebo

Energy Drink A (320 mg caffeine) consumed with placebo capsule

Group Type EXPERIMENTAL

Energy Drink A + Placebo Capsule

Intervention Type DIETARY_SUPPLEMENT

1000 mL caffeine- and taurine-containing commercially available beverage (Formula A) consumed with placebo capsule

Phase A: Placebo Drink + Moxifloxacin

Placebo drink with 400 mg moxifloxacin capsule

Group Type ACTIVE_COMPARATOR

Placebo Drink + Moxifloxacin Capsule

Intervention Type DRUG

Placebo drink with 400 mg moxifloxacin capsule

Phase A: Placebo Drink + Caffeine

Placebo drink with 320 mg caffeine capsule

Group Type ACTIVE_COMPARATOR

Placebo Drink + Caffeine Capsule

Intervention Type DIETARY_SUPPLEMENT

Placebo drink with 320 mg caffeine capsule

Phase A: Placebo Drink + Placebo Capsule

Placebo drink with Placebo capsule

Group Type PLACEBO_COMPARATOR

Placebo Drink + Placebo Capsule

Intervention Type OTHER

Placebo drink with placebo capsule

Phase B: Energy Drink B

Energy Drink B (320 mg caffeine)

Group Type EXPERIMENTAL

Energy Drink B

Intervention Type DIETARY_SUPPLEMENT

568 mL caffeine- and taurine-containing commercially available beverage (Formula B)

Phase B: Control + Taurine

Control product with 4000 mg taurine powder

Group Type EXPERIMENTAL

Control Product + Taurine

Intervention Type DIETARY_SUPPLEMENT

Control product with 4000 mg taurine powder

Phase B: Control + Caffeine + Taurine

Control product with 320 mg caffeine + 4000 mg taurine powder

Group Type EXPERIMENTAL

Control Product + Caffeine + Taurine

Intervention Type DIETARY_SUPPLEMENT

Control product with 320 mg caffeine + 4000 mg taurine powder

Interventions

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Energy Drink A + Placebo Capsule

1000 mL caffeine- and taurine-containing commercially available beverage (Formula A) consumed with placebo capsule

Intervention Type DIETARY_SUPPLEMENT

Placebo Drink + Moxifloxacin Capsule

Placebo drink with 400 mg moxifloxacin capsule

Intervention Type DRUG

Placebo Drink + Caffeine Capsule

Placebo drink with 320 mg caffeine capsule

Intervention Type DIETARY_SUPPLEMENT

Placebo Drink + Placebo Capsule

Placebo drink with placebo capsule

Intervention Type OTHER

Energy Drink B

568 mL caffeine- and taurine-containing commercially available beverage (Formula B)

Intervention Type DIETARY_SUPPLEMENT

Control Product + Taurine

Control product with 4000 mg taurine powder

Intervention Type DIETARY_SUPPLEMENT

Control Product + Caffeine + Taurine

Control product with 320 mg caffeine + 4000 mg taurine powder

Intervention Type DIETARY_SUPPLEMENT

Lower Dose Energy Drink A

591 mL caffeine- and taurine-containing commercially available beverage (Formula A)

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Healthy male or female adults 18-40 years of age
* Female participants of child-bearing potential must have a negative pregnancy test at the baseline visit
* Participants must be willing to refrain from caffeine and alcohol use 72 hours prior to sessions on study days
* Participants must be willing and able to: (1.) Consume up to 1 liter of fluid within a 30-minute period per visit (2.) Swallow a single large capsule per visit
* Participants must be willing to fast 10 hours prior to sessions on study days (only water is allowed during the fasting and active study period)
* Participants must have active health insurance throughout the duration of the study

Exclusion Criteria

* Have a corrected QT (QTc) interval greater than 450 milliseconds (ms) for males or greater than 470 milliseconds (ms) for females, determined during the baseline visit
* Presence of any known medical condition, confirmed through participant interview. Examples of these include but not limited to: Dyslipidemia, Thyroid disease, Diabetes, Recurrent headache, Any psychiatric condition or neurological disorder, History of alcohol or drug abuse, Past diagnosis or history of renal insufficiencies, Hepatic dysfunction, Electrolyte imbalances requiring hospitalization
* Presence of any known heart/cardiac diseases or conditions such as: Atrial Fibrillation, History of stroke or heart attack, Hypertension, Heart Failure, Vascular Disease, Family history/Active Long QT Syndrome, Coronary artery disease, Cardiomyopathy, Valvular heart disease, Ventricular arrhythmia, Congenital heart defect, Pericardial disease, Myocarditis
* Study physician recommendation for participant to not be enrolled.
* Are underweight (BMI\<18.5 kg/m2, CDC 2024), have poor eating habits resulting in poor weight control, or have any factors that will put the participant at risk from fasting.
* Have any contraindications to the use of moxifloxacin, including a past medical history of myasthenia gravis, QT prolongation, or hypersensitivities and allergic reactions to moxifloxacin or any other fluoroquinolone antibiotics
* Pre-existing risk to tendinitis and tendon rupture, peripheral neuropathy, or central nervous system side effects
* Concurrent use of ANY medication taken daily including herbal products or supplements (daily basis is defined as greater than 2 days per week)
* Self-reported allergy to taurine
* Self-reported allergy to nuts (peanuts, pecans, cashews, etc.)
* Self-reported allergic reaction to the adhesive pads (electrodes, continuous glucose monitors, etc.)
* Fear of needle puncture
* Smokers using cigarettes, vaporized nicotine, or marijuana products currently or within the past month
* Current usage of any nicotine or tobacco products including but not limited to intranasal, sublingual, oral, or transdermal dosage forms
* Currently pregnant or breastfeeding
* Have a positive pregnancy test during the baseline visit
* Are currently enrolled in any other clinical study or have participated in another study within the last 30 days
* Non-English speaking/reading individuals will be excluded due to the unavailability of medically qualified translators throughout all study procedures
* If the candidate does not sign the informed consent document
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of the Pacific

OTHER

Sponsor Role lead

Responsible Party

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Sachin Shah

Professor of Pharmacy Practice

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of the Pacific

Stockton, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Quy Phan, PharmD

Role: CONTACT

209-946-7754

Facility Contacts

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Quy Phan, PharmD

Role: primary

209-946-7754

Other Identifiers

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IRB2025-207

Identifier Type: -

Identifier Source: org_study_id

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